/* ========================================
   HereSign - Main Stylesheet
   Modern, Clean Landing Page Design
   ======================================== */

/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #06b6d4;
    --accent: #f59e0b;
    --success: #10b981;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
    --gradient-dark: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
    --gradient-light: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    
    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Typography */
    --font-primary: 'Poppins', 'Noto Sans KR', sans-serif;
    --font-korean: 'Noto Sans KR', sans-serif;
    
    /* Spacing */
    --section-padding: 100px;
    --container-width: 1200px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-korean);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ===== Utility Classes ===== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--gradient-light);
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
    font-family: var(--font-primary);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-download {
    background: var(--gray-900);
    color: var(--white);
    padding: 12px 20px;
    gap: 12px;
}

.btn-download i {
    font-size: 1.5rem;
}

.btn-download .btn-text {
    text-align: left;
}

.btn-download .btn-small {
    display: block;
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.8;
}

.btn-download .btn-large {
    display: block;
    font-size: 1rem;
    font-weight: 600;
}

.btn-download:hover {
    background: var(--gray-800);
    transform: translateY(-2px);
}

.btn-download.btn-light {
    background: var(--white);
    color: var(--gray-900);
}

.btn-download.btn-light:hover {
    background: var(--gray-100);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    padding: 12px 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-primary);
    color: var(--white);
}

.navbar.scrolled .logo {
    color: var(--gray-900);
}

.logo i {
    font-size: 1.75rem;
    color: var(--primary-light);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    position: relative;
}

.navbar.scrolled .nav-links a {
    color: var(--gray-600);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition-normal);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 10px 20px;
    font-size: 0.875rem;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    color: var(--white);
}

.navbar.scrolled .mobile-menu-btn {
    color: var(--gray-900);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-dark);
    z-index: -2;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.3) 0%, transparent 40%),
        radial-gradient(circle at 40% 80%, rgba(6, 182, 212, 0.2) 0%, transparent 40%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 60px;
    align-items: start;
}

/* Desktop: Hero text in first column, first row */
.hero-text {
    grid-column: 1;
    grid-row: 1;
}

/* Desktop: Hero stats in first column, second row (below text content) */
.hero-stats {
    grid-column: 1;
    grid-row: 2;
    margin-top: 0;
    align-self: start;
}

/* Desktop: Hero image spans both rows in second column */
.hero-image {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
}

/* Desktop: Hide mobile buttons */
.hero-mobile-buttons {
    display: none;
}

.hero-text {
    color: var(--white);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-badge i {
    color: var(--accent);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    font-family: var(--font-primary);
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.8;
    opacity: 0.9;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-primary);
    color: var(--white);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--white);
    opacity: 0.9;
}

/* Phone Mockup */
.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
}

.phone-mockup {
    position: relative;
    width: 280px;
    height: 560px;
    background: linear-gradient(145deg, #1a1a2e 0%, #0f0f1a 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 
        0 50px 100px -20px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.1);
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 24px;
    background: #0f0f1a;
    border-radius: 20px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
    border-radius: 32px;
    overflow: hidden;
}

.app-preview {
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 50px 16px 20px;
}

.app-header {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--white);
    font-weight: 600;
    margin-bottom: 24px;
}

.app-camera {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    margin-bottom: 20px;
}

.app-camera i {
    font-size: 3rem;
    color: var(--white);
    margin-bottom: 12px;
}

.app-camera span {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

.app-result {
    background: var(--white);
    border-radius: 16px;
    padding: 16px;
}

.result-card {
    display: flex;
    align-items: center;
    gap: 12px;
}

.result-icon {
    font-size: 2rem;
}

.result-info h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-900);
}

.result-info p {
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* Floating Cards */
.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    animation: float 3s ease-in-out infinite;
    z-index: 10;
}

.floating-card i {
    color: var(--primary);
}

/* Desktop positions */
.card-1 {
    top: 10%;
    right: -10%;
    animation-delay: 0s;
}

.card-2 {
    top: 40%;
    left: -15%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 15%;
    right: -5%;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1;
}

.hero-wave svg {
    display: block;
    width: 100%;
    height: auto;
}

/* Hide mobile buttons on desktop */
.hero-mobile-buttons {
    display: none;
}

/* ===== Pain Points Hook Section ===== */
.pain-points {
    position: relative;
    padding: 80px 0 60px;
    background: linear-gradient(180deg, #0f0a1e 0%, #1a1333 50%, #1e1b4b 100%);
    overflow: hidden;
}

.pain-points-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.12) 0%, transparent 50%);
    pointer-events: none;
}

.pain-points .container {
    position: relative;
    z-index: 1;
}

.pain-header {
    text-align: center;
    margin-bottom: 30px;
}

.pain-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(251, 191, 36, 0.15);
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: 50px;
    color: #fbbf24;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 16px;
}

.pain-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.3;
    margin-top: 50px;
}

.pain-highlight {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Pain Scene - 중앙 캐릭터 + 말풍선 */
.pain-scene {
    position: relative;
    width: 100%;
    max-width: 1000px;
    height: 280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 중앙 캐릭터 */
.pain-character {
    position: relative;
    text-align: center;
    z-index: 2;
    flex-shrink: 0;
}

.character-emoji {
    font-size: 5rem;
    display: block;
    animation: characterBounce 3s ease-in-out infinite;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
}

.character-shadow {
    width: 70px;
    height: 16px;
    background: radial-gradient(ellipse, rgba(0, 0, 0, 0.35) 0%, transparent 70%);
    border-radius: 50%;
    margin: 8px auto 0;
    animation: shadowPulse 3s ease-in-out infinite;
}

@keyframes characterBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes shadowPulse {
    0%, 100% { transform: scale(1); opacity: 0.35; }
    50% { transform: scale(0.85); opacity: 0.2; }
}

/* 말풍선 공통 스타일 */
.bubble {
    position: absolute;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.97);
    border-radius: 18px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15), 0 2px 8px rgba(0, 0, 0, 0.08);
    z-index: 1;
}

.bubble p {
    font-size: 0.9rem;
    line-height: 1.55;
    color: #1e1b4b;
    margin: 0;
    font-weight: 500;
}

.bubble-tail {
    position: absolute;
    width: 0;
    height: 0;
}

/* PC: 말풍선 1 - 이모티콘 왼쪽, 오른쪽 꼬리 → */
.bubble-1 {
    top: 50%;
    right: calc(50% + 100px);
    transform: translateY(-50%);
    max-width: 220px;
    animation: floatBubble1 4s ease-in-out infinite;
}

.bubble-1 .bubble-tail {
    top: 50%;
    right: -12px;
    transform: translateY(-50%);
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: 14px solid rgba(255, 255, 255, 0.97);
}

/* PC: 말풍선 2 - 이모티콘 오른쪽, 왼쪽 꼬리 ← */
.bubble-2 {
    top: 50%;
    left: calc(50% + 100px);
    transform: translateY(-50%);
    max-width: 220px;
    animation: floatBubble2 4.5s ease-in-out infinite;
}

.bubble-2 .bubble-tail {
    top: 50%;
    left: -12px;
    transform: translateY(-50%);
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-right: 14px solid rgba(255, 255, 255, 0.97);
}

/* PC: 말풍선 3 - 이모티콘 아래, 위쪽 꼬리 ↑ */
.bubble-3 {
    top: calc(50% + 70px);
    left: 50%;
    transform: translateX(-50%);
    max-width: 260px;
    animation: floatBubble3 5s ease-in-out infinite;
}

.bubble-3 .bubble-tail {
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-bottom: 14px solid rgba(255, 255, 255, 0.97);
}

@keyframes floatBubble1 {
    0%, 100% { transform: translateY(-50%) translateX(0); }
    50% { transform: translateY(-50%) translateX(-6px); }
}

@keyframes floatBubble2 {
    0%, 100% { transform: translateY(-50%) translateX(0); }
    50% { transform: translateY(-50%) translateX(6px); }
}

@keyframes floatBubble3 {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(5px); }
}

/* Pain Points Responsive - Tablet */
@media (max-width: 1024px) {
    .pain-points {
        padding: 100px 0 50px;
    }

    .pain-header h2 {
        font-size: 2rem;
        margin-top: 40px;
    }

    .pain-scene {
        height: 260px;
    }

    .character-emoji {
        font-size: 4rem;
    }

    .bubble {
        padding: 14px 16px;
    }

    .bubble p {
        font-size: 0.8125rem;
    }

    .bubble-1 {
        right: calc(50% + 80px);
        max-width: 180px;
    }

    .bubble-2 {
        left: calc(50% + 80px);
        max-width: 180px;
    }

    .bubble-3 {
        top: calc(50% + 60px);
        max-width: 220px;
    }
}

/* Pain Points Responsive - Mobile */
@media (max-width: 768px) {
    .pain-points {
        padding: 90px 0 40px;
    }

    .pain-header {
        margin-bottom: 20px;
    }

    .pain-tag {
        font-size: 0.8125rem;
        padding: 6px 16px;
    }

    .pain-header h2 {
        font-size: 1.5rem;
        margin-top: 35px;
    }

    .pain-scene {
        height: auto;
        flex-direction: column;
        gap: 0;
    }

    .pain-character {
        order: 2;
        margin: 16px 0;
    }

    .character-emoji {
        font-size: 3.5rem;
    }

    .character-shadow {
        width: 60px;
        height: 14px;
        margin-top: 6px;
    }

    /* 모바일: 모든 말풍선 정적 배치 */
    .bubble {
        position: relative;
        max-width: 300px;
        padding: 14px 18px;
        top: auto !important;
        left: auto !important;
        right: auto !important;
        bottom: auto !important;
        margin: 0 auto;
    }

    .bubble p {
        font-size: 0.8125rem;
        text-align: center;
    }

    /* 말풍선 1, 2: 위쪽 (아래 꼬리) */
    .bubble-1 {
        order: 1;
        animation: floatBubbleMobile1 4s ease-in-out infinite;
    }

    .bubble-1 .bubble-tail {
        top: auto;
        right: auto;
        bottom: -12px;
        left: 50%;
        transform: translateX(-50%);
        border-top: 14px solid rgba(255, 255, 255, 0.97);
        border-bottom: none;
        border-left: 10px solid transparent;
        border-right: 10px solid transparent;
    }

    .bubble-2 {
        order: 1;
        margin-top: 30px;
        animation: floatBubbleMobile2 4.5s ease-in-out infinite;
        animation-delay: 0.3s;
    }

    .bubble-2 .bubble-tail {
        top: auto;
        left: 50%;
        bottom: -12px;
        transform: translateX(-50%);
        border-top: 14px solid rgba(255, 255, 255, 0.97);
        border-bottom: none;
        border-left: 10px solid transparent;
        border-right: 10px solid transparent;
    }

    /* 말풍선 3: 아래쪽 (위 꼬리) */
    .bubble-3 {
        order: 3;
        animation: floatBubbleMobile3 5s ease-in-out infinite;
        animation-delay: 0.6s;
    }

    .bubble-3 .bubble-tail {
        top: -12px;
        left: 50%;
        transform: translateX(-50%);
        border-bottom: 14px solid rgba(255, 255, 255, 0.97);
        border-top: none;
        border-left: 10px solid transparent;
        border-right: 10px solid transparent;
    }

    @keyframes floatBubbleMobile1 {
        0%, 100% { transform: translateY(0) rotate(-1deg); }
        50% { transform: translateY(-6px) rotate(1deg); }
    }

    @keyframes floatBubbleMobile2 {
        0%, 100% { transform: translateY(0) rotate(1deg); }
        50% { transform: translateY(-7px) rotate(-1deg); }
    }

    @keyframes floatBubbleMobile3 {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(5px); }
    }
}

/* Pain Points Responsive - Small Mobile */
@media (max-width: 480px) {
    .pain-points {
        padding: 80px 0 35px;
    }

    .pain-header {
        margin-bottom: 16px;
    }

    .pain-tag {
        font-size: 0.75rem;
        padding: 5px 14px;
    }

    .pain-header h2 {
        font-size: 1.3rem;
        margin-top: 30px;
    }

    .pain-character {
        margin: 14px 0;
    }

    .character-emoji {
        font-size: 3rem;
    }

    .character-shadow {
        width: 50px;
        height: 12px;
    }

    .bubble {
        max-width: 280px;
        padding: 12px 14px;
        border-radius: 14px;
    }

    .bubble p {
        font-size: 0.75rem;
        line-height: 1.5;
    }

    .bubble-2 {
        margin-top: 28px;
    }
}

/* ===== Features Section ===== */
.features {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    padding: 40px 30px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    transition: var(--transition-normal);
}

.feature-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
}

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-light);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.feature-icon i {
    font-size: 1.5rem;
    color: var(--primary);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ===== How It Works Section ===== */
.how-it-works {
    padding: var(--section-padding) 0;
    background: var(--gradient-light);
}

.steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 20px;
}

.step {
    flex: 1;
    max-width: 280px;
    text-align: center;
    padding: 40px 30px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    font-family: var(--font-primary);
}

.step-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-light);
    border-radius: var(--radius-full);
    margin: 0 auto 24px;
}

.step-icon i {
    font-size: 2rem;
    color: var(--primary);
}

.step h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.step p {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.6;
}

.step-connector {
    display: flex;
    align-items: center;
    padding-top: 80px;
    color: var(--gray-300);
}

.step-connector svg {
    width: 60px;
    height: 20px;
}

/* ===== Use Cases Section ===== */
.use-cases {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.use-case-card {
    display: flex;
    gap: 24px;
    padding: 30px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    transition: var(--transition-normal);
}

.use-case-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.use-case-image {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.use-case-image i {
    font-size: 2rem;
    color: var(--white);
}

.use-case-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.use-case-content p {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 12px;
}

.use-case-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--gray-100);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    color: var(--gray-600);
}

/* ===== App Preview Section ===== */
.app-preview-section {
    padding: var(--section-padding) 0;
    background: var(--gradient-dark);
    overflow: hidden;
}

.app-preview-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
}

.app-preview-text {
    color: var(--white);
}

.app-preview-text .section-tag {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.app-preview-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 20px;
    font-family: var(--font-primary);
}

.app-preview-text > p {
    font-size: 1.0625rem;
    opacity: 0.8;
    line-height: 1.8;
    margin-bottom: 32px;
}

.preview-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.preview-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
}

.preview-features i {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--success);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
}

/* Preview Phones */
.app-preview-phones {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    position: relative;
}

.preview-phone {
    width: 200px;
    height: 400px;
    background: linear-gradient(145deg, #1a1a2e 0%, #0f0f1a 100%);
    border-radius: 30px;
    padding: 8px;
    box-shadow: var(--shadow-2xl);
}

.preview-phone.phone-center {
    width: 220px;
    height: 440px;
    z-index: 2;
}

.preview-phone.phone-left,
.preview-phone.phone-right {
    opacity: 0.7;
    transform: scale(0.9);
}

.preview-phone .phone-screen {
    width: 100%;
    height: 100%;
    background: var(--white);
    border-radius: 24px;
    overflow: hidden;
}

.screen-content {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.mock-header {
    padding: 20px 16px 12px;
    text-align: center;
    font-weight: 600;
    color: var(--gray-800);
    font-size: 0.875rem;
    border-bottom: 1px solid var(--gray-100);
}

.mock-camera-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--gray-900);
}

.camera-frame {
    width: 120px;
    height: 80px;
    border: 2px dashed rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    margin-bottom: 12px;
}

.mock-camera-view span {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.75rem;
    text-align: center;
}

.mock-button {
    padding: 12px 20px;
    background: var(--primary);
    color: var(--white);
    text-align: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.result-detail {
    flex: 1;
    padding: 20px 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.result-image {
    font-size: 3rem;
    margin-bottom: 12px;
}

.result-detail h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.result-rating {
    font-size: 0.8125rem;
    color: var(--gray-500);
    margin-bottom: 12px;
}

.result-tags {
    display: flex;
    gap: 6px;
    margin-bottom: 16px;
}

.result-tags span {
    padding: 4px 10px;
    background: var(--gray-100);
    border-radius: var(--radius-full);
    font-size: 0.6875rem;
    color: var(--gray-600);
}

.result-tips {
    width: 100%;
    padding: 12px;
    background: #fef3c7;
    border-radius: var(--radius-sm);
}

.result-tips strong {
    display: block;
    font-size: 0.75rem;
    margin-bottom: 4px;
}

.result-tips p {
    font-size: 0.6875rem;
    color: var(--gray-700);
    line-height: 1.5;
}

.saved-list {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.saved-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
}

.item-icon {
    font-size: 1.25rem;
}

.item-info strong {
    display: block;
    font-size: 0.8125rem;
    color: var(--gray-900);
}

.item-info small {
    font-size: 0.6875rem;
    color: var(--gray-500);
}

/* ===== Reviews Section ===== */
.reviews {
    padding: var(--section-padding) 0;
    background: var(--gray-50);
}

.reviews-slider {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.review-card {
    padding: 32px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.review-rating {
    margin-bottom: 16px;
}

.review-rating i {
    color: var(--accent);
    font-size: 0.875rem;
}

.review-text {
    font-size: 1rem;
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 24px;
}

.reviewer {
    display: flex;
    align-items: center;
    gap: 12px;
}

.reviewer-avatar {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.reviewer-info strong {
    display: block;
    font-size: 0.9375rem;
    color: var(--gray-900);
}

.reviewer-info span {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

/* ===== Download CTA Section ===== */
.download-cta {
    padding: var(--section-padding) 0;
    background: var(--gradient-primary);
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
    font-family: var(--font-primary);
}

.cta-content > p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
}

.cta-note {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
    color: var(--white);
    font-size: 0.875rem;
}

/* ===== FAQ Section ===== */
.faq {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--gray-200);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0;
    font-size: 1.0625rem;
    font-weight: 500;
    color: var(--gray-800);
    text-align: left;
    transition: var(--transition-normal);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question i {
    transition: var(--transition-normal);
    color: var(--gray-400);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding-bottom: 24px;
    font-size: 0.9375rem;
    color: var(--gray-600);
    line-height: 1.8;
}

/* ===== Footer ===== */
.footer {
    padding: 80px 0 0;
    background: var(--gray-900);
    color: var(--white);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand > p {
    font-size: 0.9375rem;
    color: var(--gray-400);
    line-height: 1.7;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--white);
    transition: var(--transition-normal);
}

.social-links a:hover {
    background: var(--primary);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column a {
    font-size: 0.9375rem;
    color: var(--gray-400);
}

.footer-column a:hover {
    color: var(--white);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ===== Back to Top Button ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
}

/* ===== Responsive Design ===== */

/* Tablet Landscape */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        margin-bottom: 40px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .floating-card {
        display: none;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps {
        flex-direction: row;
        gap: 10px;
        overflow-x: visible;
        padding: 10px 0 20px;
        justify-content: space-between;
    }

    .step-connector {
        display: none;
    }

    .step {
        flex: 1;
        min-width: 0;
        max-width: none;
        padding: 24px 14px;
    }

    .step-number {
        width: 34px;
        height: 34px;
        font-size: 0.75rem;
        top: -17px;
    }

    .step-icon {
        width: 56px;
        height: 56px;
        margin-bottom: 14px;
    }

    .step-icon i {
        font-size: 1.375rem;
    }

    .step h3 {
        font-size: 1rem;
        margin-bottom: 7px;
    }

    .step p {
        font-size: 0.8125rem;
        line-height: 1.5;
    }

    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .use-case-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 20px 14px;
        gap: 12px;
    }

    .use-case-image {
        width: 56px;
        height: 56px;
        min-width: 56px;
    }

    .use-case-image i {
        font-size: 1.375rem;
    }

    .use-case-content h3 {
        font-size: 0.9375rem;
        margin-bottom: 6px;
    }

    .use-case-content p {
        font-size: 0.75rem;
        margin-bottom: 8px;
        line-height: 1.5;
    }

    .use-case-tag {
        font-size: 0.6875rem;
        padding: 3px 8px;
    }

    .app-preview-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .app-preview-text {
        margin-bottom: 20px;
    }

    .preview-features {
        align-items: center;
        margin-bottom: 12px;
    }

    /* Show all 3 phones on mobile with adjusted size - fit in one screen */
    .app-preview-phones {
        gap: 6px;
        justify-content: space-between;
        flex-wrap: nowrap;
        overflow-x: visible;
        padding: 10px 0;
        margin: 0;
        margin-top: 0;
    }

    .preview-phone {
        flex: 1;
        min-width: 0;
        width: calc(33.333% - 4px);
        height: 280px;
        border-radius: 20px;
        padding: 5px;
        opacity: 1;
        transform: scale(1);
    }

    .preview-phone.phone-center {
        flex: 1.1;
        width: calc(36% - 4px);
        height: 300px;
        z-index: 1;
    }

    .preview-phone.phone-left,
    .preview-phone.phone-right {
        display: block;
        opacity: 0.9;
        transform: scale(0.95);
    }

    /* Adjust content size for smaller phones */
    .preview-phone .phone-screen {
        border-radius: 20px;
    }

    .mock-header {
        padding: 12px 10px 8px;
        font-size: 0.625rem;
    }

    .mock-camera-view {
        padding: 12px;
    }

    .camera-frame {
        width: 70px;
        height: 50px;
        margin-bottom: 8px;
    }

    .mock-camera-view span {
        font-size: 0.5625rem;
    }

    .mock-button {
        padding: 8px 12px;
        font-size: 0.625rem;
    }

    .result-detail {
        padding: 12px 10px;
    }

    .result-image {
        font-size: 1.5rem;
        margin-bottom: 6px;
    }

    .result-detail h4 {
        font-size: 0.6875rem;
        margin-bottom: 3px;
    }

    .result-rating {
        font-size: 0.5625rem;
        margin-bottom: 6px;
    }

    .result-tags {
        gap: 3px;
        margin-bottom: 8px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .result-tags span {
        padding: 2px 6px;
        font-size: 0.5rem;
    }

    .result-tips {
        padding: 6px;
    }

    .result-tips strong {
        font-size: 0.5rem;
        margin-bottom: 2px;
    }

    .result-tips p {
        font-size: 0.4375rem;
        line-height: 1.3;
    }

    .saved-list {
        padding: 10px;
        gap: 6px;
    }

    .saved-item {
        padding: 8px;
        gap: 8px;
    }

    .item-icon {
        font-size: 0.875rem;
    }

    .item-info strong {
        font-size: 0.5625rem;
    }

    .item-info small {
        font-size: 0.4375rem;
    }

    .reviews-slider {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1.5fr repeat(2, 1fr);
        gap: 40px;
    }

    /* Footer links - 2 columns for balance */
    .footer-links {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }

    .footer-brand {
        grid-column: 1;
    }
}

/* Tablet Portrait & Large Mobile */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }

    .container {
        padding: 0 20px;
    }

    /* Navigation */
    .navbar {
        padding: 15px 0;
    }

    .navbar.scrolled {
        padding: 10px 0;
    }

    .logo {
        font-size: 1.25rem;
    }

    .logo i {
        font-size: 1.5rem;
    }

    .nav-links, .nav-cta {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
        padding: 8px;
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        padding: 20px;
        box-shadow: var(--shadow-lg);
        gap: 0;
    }

    .nav-links.active a {
        color: var(--gray-800);
        padding: 15px 0;
        border-bottom: 1px solid var(--gray-100);
    }

    .nav-links.active li:last-child a {
        border-bottom: none;
    }

    /* Hero Section - Mobile Reordering */
    .hero {
        min-height: auto;
        padding: 100px 0 80px;
        text-align: center;
    }

    .hero .container {
        text-align: center !important;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .hero-content {
        display: flex;
        flex-direction: column;
        gap: 0;
        align-items: center !important;
        justify-content: center;
        text-align: center !important;
        width: 100%;
        max-width: 100%;
    }

    /* Hero Text - First on mobile (badge, title, description) */
    .hero-text {
        order: 0;
        text-align: center !important;
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        width: 100% !important;
        max-width: 100% !important;
        margin: 0 auto !important;
        padding: 0;
    }

    .hero-text > * {
        text-align: center !important;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-badge {
        font-size: 0.75rem;
        padding: 6px 12px;
        margin: 0 auto 16px !important;
        display: inline-flex !important;
        align-items: center;
        justify-content: center;
        width: auto;
        text-align: center !important;
    }

    .hero-text h1,
    .hero-text h1 br {
        font-size: 2rem;
        margin: 0 auto 16px !important;
        line-height: 1.3;
        text-align: center !important;
        width: 100% !important;
        max-width: 100% !important;
    }

    .hero-text h1 span {
        display: block;
        text-align: center !important;
        width: 100%;
    }

    .hero-text .hero-description {
        font-size: 1rem;
        margin: 0 auto 32px !important;
        line-height: 1.7;
        text-align: center !important;
        width: 100% !important;
        max-width: 100% !important;
    }

    /* Hide desktop buttons on mobile - will show mobile buttons after image */
    .hero-text .hero-buttons {
        display: none;
    }

    /* Hero Image - First on mobile, before stats */
    .hero-image {
        order: 1;
        margin-top: 40px;
        margin-bottom: 32px;
        position: relative;
    }

    /* Floating Cards - Mobile positioning (center of phone, slightly overlapping) */
    .floating-card {
        display: flex;
        padding: 10px 14px;
        font-size: 0.8125rem;
        white-space: nowrap;
    }

    .card-1 {
        /* 다국어 지원 - 더 밑으로 이동 */
        top: 40%;
        left: 50%;
        transform: translateX(-50%);
        right: auto;
        animation-delay: 0s;
    }

    .card-2 {
        /* 즉시분석 - 조금 더 왼쪽 밑으로 이동 */
        top: 30%;
        left: 0;
        right: auto;
        animation-delay: 1s;
    }

    .card-3 {
        /* 위치기반 - 오른쪽으로 이동 */
        top: 25%;
        right: 0;
        left: auto;
        bottom: auto;
        animation-delay: 2s;
    }

    /* Stats - Second on mobile, after image */
    .hero-stats {
        order: 2;
        flex-direction: row;
        gap: 24px;
        flex-wrap: wrap;
        justify-content: center;
        margin: 0 auto 32px;
        padding-bottom: 32px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        width: 100%;
    }

    .stat {
        min-width: 80px;
        text-align: center;
        display: flex;
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }

    .stat-number {
        display: block;
        font-size: 1.5rem;
        font-weight: 700;
        font-family: var(--font-primary);
        color: var(--white);
        line-height: 1.2;
    }

    .stat-label {
        display: block;
        font-size: 0.8125rem;
        opacity: 0.85;
        color: var(--white);
        line-height: 1.4;
        white-space: nowrap;
    }

    /* Mobile buttons container - Third on mobile, after stats */
    .hero-mobile-buttons {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 12px;
        margin-top: 0;
        margin-bottom: 60px;
        padding-bottom: 40px;
        width: 100%;
        order: 3;
    }

    .hero-mobile-buttons .btn-download {
        width: 100%;
        max-width: 280px;
        justify-content: center;
        padding: 14px 20px;
    }

    .phone-mockup {
        width: 220px;
        height: 440px;
        border-radius: 32px;
        padding: 10px;
    }

    .phone-mockup::before {
        width: 60px;
        height: 20px;
        top: 16px;
    }

    .phone-screen {
        border-radius: 26px;
    }

    /* Hero wave - Ensure enough space above to prevent cutoff */
    .hero {
        padding-bottom: 100px;
    }

    /* Hide wave pattern on mobile */
    .hero-wave {
        display: none;
    }

    /* Section Headers */
    .section-header {
        margin-bottom: 40px;
    }

    .section-tag {
        font-size: 0.75rem;
        padding: 5px 12px;
        margin-bottom: 12px;
    }

    .section-header h2 {
        font-size: 1.625rem;
        margin-bottom: 12px;
        line-height: 1.3;
    }

    .section-header p {
        font-size: 0.9375rem;
        line-height: 1.6;
    }

    /* Features */
    .features {
        padding: 50px 0;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .feature-card {
        padding: 24px 16px;
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .feature-icon {
        width: 56px;
        height: 56px;
        min-width: 56px;
        margin-bottom: 16px;
    }

    .feature-icon i {
        font-size: 1.375rem;
    }

    .feature-card h3 {
        font-size: 1rem;
        margin-bottom: 8px;
    }

    .feature-card p {
        font-size: 0.8125rem;
        line-height: 1.6;
    }

    /* How It Works */
    .how-it-works {
        padding: 50px 0;
    }

    .steps {
        flex-direction: row;
        gap: 8px;
        overflow-x: visible;
        padding: 10px 0 20px;
        justify-content: space-between;
    }

    .step {
        flex: 1;
        min-width: 0;
        max-width: none;
        padding: 20px 12px;
        scroll-snap-align: none;
    }

    .step-number {
        width: 32px;
        height: 32px;
        font-size: 0.6875rem;
        top: -16px;
    }

    .step-icon {
        width: 52px;
        height: 52px;
        margin-bottom: 12px;
    }

    .step-icon i {
        font-size: 1.25rem;
    }

    .step h3 {
        font-size: 0.9375rem;
        margin-bottom: 6px;
    }

    .step p {
        font-size: 0.75rem;
        line-height: 1.5;
    }

    .step-number {
        width: 36px;
        height: 36px;
        font-size: 0.75rem;
        top: -18px;
    }

    .step-icon {
        width: 64px;
        height: 64px;
        margin-bottom: 16px;
    }

    .step-icon i {
        font-size: 1.5rem;
    }

    .step h3 {
        font-size: 1.0625rem;
        margin-bottom: 8px;
    }

    .step p {
        font-size: 0.875rem;
    }

    /* Use Cases */
    .use-cases {
        padding: 50px 0;
    }

    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .use-case-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 18px 12px;
        gap: 10px;
    }

    .use-case-image {
        width: 52px;
        height: 52px;
        min-width: 52px;
    }

    .use-case-image i {
        font-size: 1.25rem;
    }

    .use-case-content h3 {
        font-size: 0.875rem;
        margin-bottom: 5px;
    }

    .use-case-content p {
        font-size: 0.6875rem;
        margin-bottom: 6px;
        line-height: 1.5;
    }

    .use-case-tag {
        font-size: 0.625rem;
        padding: 2px 6px;
    }

    /* App Preview */
    .app-preview-section {
        padding: 50px 0;
    }

    .app-preview-text h2 {
        font-size: 1.625rem;
        margin-bottom: 16px;
    }

    .app-preview-text > p {
        font-size: 0.9375rem;
        margin-bottom: 16px;
    }

    .preview-features {
        gap: 10px;
        margin-bottom: 12px;
    }

    .preview-features li {
        font-size: 0.9375rem;
    }

    .preview-features i {
        width: 20px;
        height: 20px;
        font-size: 0.625rem;
    }

    /* Show all 3 phones on mobile with adjusted size - fit in one screen */
    .app-preview-phones {
        gap: 5px;
        justify-content: space-between;
        flex-wrap: nowrap;
        overflow-x: visible;
        padding: 10px 0;
        margin: 0;
        margin-top: 0;
    }

    .preview-phone {
        flex: 1;
        min-width: 0;
        width: calc(33.333% - 3px);
        height: 260px;
        border-radius: 18px;
        padding: 4px;
        opacity: 1;
        transform: scale(1);
    }

    .preview-phone.phone-center {
        flex: 1.1;
        width: calc(36% - 3px);
        height: 280px;
        z-index: 1;
    }

    .preview-phone.phone-left,
    .preview-phone.phone-right {
        display: block;
        opacity: 0.9;
        transform: scale(0.95);
    }

    /* Adjust content size for smaller phones on mobile */
    .preview-phone .phone-screen {
        border-radius: 18px;
    }

    .mock-header {
        padding: 10px 8px 6px;
        font-size: 0.5625rem;
    }

    .mock-camera-view {
        padding: 10px;
    }

    .camera-frame {
        width: 60px;
        height: 40px;
        margin-bottom: 6px;
    }

    .mock-camera-view span {
        font-size: 0.5rem;
    }

    .mock-button {
        padding: 6px 10px;
        font-size: 0.5625rem;
    }

    .result-detail {
        padding: 10px 8px;
    }

    .result-image {
        font-size: 1.25rem;
        margin-bottom: 5px;
    }

    .result-detail h4 {
        font-size: 0.625rem;
        margin-bottom: 2px;
    }

    .result-rating {
        font-size: 0.5rem;
        margin-bottom: 5px;
    }

    .result-tags {
        gap: 2px;
        margin-bottom: 6px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .result-tags span {
        padding: 2px 5px;
        font-size: 0.4375rem;
    }

    .result-tips {
        padding: 5px;
    }

    .result-tips strong {
        font-size: 0.4375rem;
        margin-bottom: 2px;
    }

    .result-tips p {
        font-size: 0.375rem;
        line-height: 1.2;
    }

    .saved-list {
        padding: 8px;
        gap: 5px;
    }

    .saved-item {
        padding: 6px;
        gap: 6px;
    }

    .item-icon {
        font-size: 0.75rem;
    }

    .item-info strong {
        font-size: 0.5rem;
    }

    .item-info small {
        font-size: 0.375rem;
    }

    /* Reviews - Horizontal Scroll on Mobile */
    .reviews {
        padding: 50px 0;
    }

    .reviews-slider {
        display: flex;
        gap: 16px;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding: 10px 0 20px;
        margin: 0 -20px;
        padding-left: 20px;
        padding-right: 20px;
    }

    .reviews-slider::-webkit-scrollbar {
        display: none;
    }

    .reviews-slider {
        -ms-overflow-style: none;
        scrollbar-width: none;
    }

    .review-card {
        padding: 24px 20px;
        min-width: 280px;
        max-width: 320px;
        flex-shrink: 0;
        scroll-snap-align: start;
    }

    .review-rating i {
        font-size: 0.75rem;
    }

    .review-text {
        font-size: 0.9375rem;
        margin-bottom: 20px;
        line-height: 1.7;
    }

    .reviewer-avatar {
        width: 42px;
        height: 42px;
        font-size: 0.875rem;
    }

    .reviewer-info strong {
        font-size: 0.875rem;
    }

    .reviewer-info span {
        font-size: 0.75rem;
    }

    /* Download CTA */
    .download-cta {
        padding: 50px 0;
    }

    .cta-content h2 {
        font-size: 1.625rem;
        margin-bottom: 12px;
    }

    .cta-content > p {
        font-size: 0.9375rem;
        margin-bottom: 28px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 12px;
        margin-bottom: 24px;
    }

    .cta-buttons .btn-download {
        width: 100%;
        max-width: 280px;
    }

    .cta-note {
        font-size: 0.8125rem;
        padding: 8px 16px;
    }

    /* FAQ */
    .faq {
        padding: 50px 0;
    }

    .faq-question {
        padding: 18px 0;
        font-size: 0.9375rem;
        gap: 12px;
    }

    .faq-question span {
        flex: 1;
    }

    .faq-question i {
        font-size: 0.875rem;
        flex-shrink: 0;
    }

    .faq-answer p {
        font-size: 0.875rem;
        padding-bottom: 18px;
    }

    /* Footer */
    .footer {
        padding: 50px 0 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        padding-bottom: 40px;
    }

    .footer-brand {
        text-align: center;
    }

    .footer-brand .logo {
        justify-content: center;
    }

    .footer-brand > p {
        font-size: 0.875rem;
    }

    .social-links {
        justify-content: center;
    }

    /* Footer links - 2 columns on mobile for balance */
    .footer-links {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
        max-width: 500px;
        margin: 0 auto;
    }

    .footer-column {
        text-align: center;
    }

    .footer-column h4 {
        font-size: 0.8125rem;
        margin-bottom: 16px;
    }

    .footer-column ul {
        gap: 10px;
    }

    .footer-column a {
        font-size: 0.875rem;
    }

    .footer-bottom {
        padding: 20px 0;
    }

    .footer-bottom p {
        font-size: 0.75rem;
    }

    /* Back to Top */
    .back-to-top {
        width: 44px;
        height: 44px;
        bottom: 20px;
        right: 20px;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    /* Hero */
    .hero {
        padding: 90px 0 60px;
    }

    .hero {
        text-align: center !important;
    }

    .hero .container {
        text-align: center !important;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .hero-content {
        align-items: center !important;
        text-align: center !important;
        width: 100%;
        max-width: 100%;
    }

    .hero-text {
        text-align: center !important;
        align-items: center !important;
        justify-content: center !important;
        margin: 0 auto !important;
        width: 100% !important;
        max-width: 100% !important;
        display: flex !important;
        flex-direction: column !important;
    }

    .hero-text > * {
        text-align: center !important;
        margin-left: auto !important;
        margin-right: auto !important;
    }

    .hero-badge {
        margin: 0 auto 16px !important;
        display: inline-flex !important;
    }

    .hero-text h1,
    .hero h1 {
        font-size: 1.75rem;
        text-align: center !important;
        margin: 0 auto 16px !important;
        width: 100% !important;
        max-width: 100% !important;
    }

    .hero-text h1 span,
    .hero h1 span {
        display: block;
        text-align: center !important;
        width: 100%;
    }

    .hero-text .hero-description,
    .hero-description {
        font-size: 0.9375rem;
        text-align: center !important;
        margin: 0 auto 32px !important;
        width: 100% !important;
        max-width: 100% !important;
    }

    /* Stats with more spacing for labels */
    .hero-stats {
        gap: 20px;
        margin: 0 auto 40px;
        padding-bottom: 40px;
        margin-bottom: 40px;
    }

    .stat {
        min-width: 70px;
        gap: 10px;
    }

    .stat-number {
        font-size: 1.375rem;
        line-height: 1.2;
    }

    .stat-label {
        font-size: 0.75rem;
        opacity: 0.85;
        line-height: 1.5;
        white-space: nowrap;
    }

    /* Floating Cards - Smaller screens positioning (center of phone) */
    .hero-image {
        margin-top: 35px;
    }

    .floating-card {
        padding: 8px 12px;
        font-size: 0.75rem;
    }

    .card-1 {
        /* 다국어 지원 - 더 밑으로 이동 */
        top: 60%;
        left: 85%;
        transform: translateX(-50%);
    }

    .card-2 {
        /* 즉시분석 - 조금 더 왼쪽 밑으로 이동 */
        top: 32%;
        left: -20%;
    }

    .card-3 {
        /* 위치기반 - 오른쪽으로 이동 */
        top: 23%;
        right: -20%;
    }

    /* Hero - More padding to prevent cutoff */
    .hero {
        padding-bottom: 90px;
    }

    /* Hero wave - More space before wave to ensure stats labels are visible and wave is not cut */
    .hero-mobile-buttons {
        margin-bottom: 50px;
        padding-bottom: 35px;
    }

    /* Hide wave pattern on small mobile */
    .hero-wave {
        display: none;
    }

    .phone-mockup {
        width: 200px;
        height: 400px;
        border-radius: 28px;
        padding: 8px;
    }

    .phone-mockup::before {
        width: 50px;
        height: 18px;
        top: 14px;
    }

    .phone-screen {
        border-radius: 22px;
    }

    .app-preview {
        padding: 40px 12px 16px;
    }

    .app-header {
        font-size: 0.8125rem;
        margin-bottom: 16px;
    }

    .app-camera i {
        font-size: 2rem;
        margin-bottom: 8px;
    }

    .app-camera span {
        font-size: 0.75rem;
    }

    .app-result {
        padding: 12px;
    }

    .result-icon {
        font-size: 1.5rem;
    }

    .result-info h4 {
        font-size: 0.75rem;
    }

    .result-info p {
        font-size: 0.625rem;
    }

    /* Section Headers */
    .section-header h2 {
        font-size: 1.5rem;
    }

    .section-header p {
        font-size: 0.875rem;
    }

    /* Features - 2 columns on mobile */
    .features-grid {
        gap: 14px;
    }

    .feature-card {
        flex-direction: column;
        text-align: center;
        padding: 24px 16px;
    }

    .feature-icon {
        margin: 0 auto 16px;
    }

    /* Steps - Horizontal layout on mobile, fit in one screen */
    .steps {
        gap: 6px;
        margin: 0;
        padding: 10px 0 20px;
        justify-content: space-between;
    }

    .step {
        flex: 1;
        min-width: 0;
        padding: 18px 10px;
    }

    .step-number {
        width: 30px;
        height: 30px;
        font-size: 0.625rem;
        top: -15px;
    }

    .step-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 10px;
    }

    .step-icon i {
        font-size: 1.125rem;
    }

    .step h3 {
        font-size: 0.875rem;
        margin-bottom: 5px;
    }

    .step p {
        font-size: 0.6875rem;
        line-height: 1.4;
    }

    .step-icon {
        width: 56px;
        height: 56px;
    }

    .step-icon i {
        font-size: 1.25rem;
    }

    /* Use Cases - 2x2 grid on small mobile */
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .use-case-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 16px 10px;
        gap: 8px;
    }

    .use-case-image {
        width: 48px;
        height: 48px;
        min-width: 48px;
        margin: 0 auto;
    }

    .use-case-image i {
        font-size: 1.125rem;
    }

    .use-case-content h3 {
        font-size: 0.8125rem;
        margin-bottom: 4px;
    }

    .use-case-content p {
        font-size: 0.625rem;
        margin-bottom: 5px;
        line-height: 1.4;
    }

    .use-case-tag {
        font-size: 0.5625rem;
        padding: 2px 5px;
    }

    /* Reviews - Smaller cards on small mobile */
    .reviews-slider {
        margin: 0 -16px;
        padding-left: 16px;
        padding-right: 16px;
    }

    .review-card {
        min-width: 260px;
        max-width: 280px;
        padding: 20px 16px;
    }

    .review-text {
        font-size: 0.875rem;
    }

    /* App Preview - Reduce spacing on small mobile */
    .app-preview-text {
        margin-bottom: 16px;
    }

    .app-preview-text > p {
        margin-bottom: 12px;
    }

    .preview-features {
        margin-bottom: 10px;
        gap: 8px;
    }

    /* Show all 3 phones on small mobile - fit in one screen */
    .app-preview-phones {
        gap: 4px;
        justify-content: space-between;
        flex-wrap: nowrap;
        overflow-x: visible;
        padding: 10px 0;
        margin: 0;
        margin-top: 0;
    }

    .preview-phone {
        flex: 1;
        min-width: 0;
        width: calc(33.333% - 3px);
        height: 220px;
        border-radius: 18px;
        padding: 3px;
    }

    .preview-phone.phone-center {
        flex: 1.1;
        width: calc(36% - 3px);
        height: 240px;
    }

    .preview-phone.phone-left,
    .preview-phone.phone-right {
        display: block;
        opacity: 0.9;
        transform: scale(0.95);
    }

    /* Adjust content size for extra small phones */
    .preview-phone .phone-screen {
        border-radius: 16px;
    }

    .mock-header {
        padding: 8px 6px 5px;
        font-size: 0.5rem;
    }

    .mock-camera-view {
        padding: 8px;
    }

    .camera-frame {
        width: 50px;
        height: 35px;
        margin-bottom: 5px;
    }

    .mock-camera-view span {
        font-size: 0.4375rem;
    }

    .mock-button {
        padding: 5px 8px;
        font-size: 0.5rem;
    }

    .result-detail {
        padding: 8px 6px;
    }

    .result-image {
        font-size: 1rem;
        margin-bottom: 4px;
    }

    .result-detail h4 {
        font-size: 0.5625rem;
        margin-bottom: 2px;
    }

    .result-rating {
        font-size: 0.4375rem;
        margin-bottom: 4px;
    }

    .result-tags {
        gap: 2px;
        margin-bottom: 5px;
    }

    .result-tags span {
        padding: 1px 4px;
        font-size: 0.375rem;
    }

    .result-tips {
        padding: 4px;
    }

    .result-tips strong {
        font-size: 0.375rem;
        margin-bottom: 1px;
    }

    .result-tips p {
        font-size: 0.3125rem;
        line-height: 1.2;
    }

    .saved-list {
        padding: 6px;
        gap: 4px;
    }

    .saved-item {
        padding: 5px;
        gap: 5px;
    }

    .item-icon {
        font-size: 0.625rem;
    }

    .item-info strong {
        font-size: 0.4375rem;
    }

    .item-info small {
        font-size: 0.3125rem;
    }

    .result-detail {
        padding: 16px 12px;
    }

    .result-image {
        font-size: 2.5rem;
        margin-bottom: 8px;
    }

    .result-detail h4 {
        font-size: 0.875rem;
    }

    .result-rating {
        font-size: 0.75rem;
        margin-bottom: 8px;
    }

    .result-tags {
        flex-wrap: wrap;
        justify-content: center;
        gap: 4px;
        margin-bottom: 12px;
    }

    .result-tags span {
        font-size: 0.625rem;
        padding: 3px 8px;
    }

    .result-tips {
        padding: 10px;
    }

    .result-tips strong {
        font-size: 0.6875rem;
    }

    .result-tips p {
        font-size: 0.625rem;
    }

    /* CTA */
    .cta-content h2 {
        font-size: 1.5rem;
    }

    .cta-content > p {
        font-size: 0.875rem;
    }

    .cta-note {
        font-size: 0.75rem;
        padding: 8px 12px;
        text-align: center;
    }

    /* FAQ */
    .faq-question {
        font-size: 0.875rem;
        padding: 16px 0;
    }

    .faq-answer p {
        font-size: 0.8125rem;
        line-height: 1.7;
    }

    /* Footer */
    .footer-links {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        max-width: 450px;
        margin: 0 auto;
    }

    .footer-column {
        text-align: center;
    }

    .footer-column h4 {
        font-size: 0.75rem;
        margin-bottom: 12px;
    }

    .footer-column ul {
        gap: 8px;
    }

    .footer-column a {
        font-size: 0.8125rem;
    }
}

/* Extra Small Mobile */
@media (max-width: 360px) {
    .hero {
        padding: 90px 0 70px;
        text-align: center !important;
    }

    .hero .container {
        text-align: center !important;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .hero-content {
        align-items: center !important;
        text-align: center !important;
        width: 100%;
        max-width: 100%;
    }

    .hero-text {
        text-align: center !important;
        align-items: center !important;
        justify-content: center !important;
        margin: 0 auto !important;
        width: 100% !important;
        max-width: 100% !important;
        display: flex !important;
        flex-direction: column !important;
    }

    .hero-text > * {
        text-align: center !important;
        margin-left: auto !important;
        margin-right: auto !important;
    }

    .hero-badge {
        margin: 0 auto 16px !important;
        display: inline-flex !important;
    }

    .hero-text h1,
    .hero h1 {
        font-size: 1.5rem;
        text-align: center !important;
        margin: 0 auto 16px !important;
        width: 100% !important;
        max-width: 100% !important;
    }

    .hero-text h1 span,
    .hero h1 span {
        display: block;
        text-align: center !important;
        width: 100%;
    }

    .hero-text .hero-description,
    .hero-description {
        font-size: 0.875rem;
        text-align: center !important;
        margin: 0 auto 32px !important;
        width: 100% !important;
        max-width: 100% !important;
    }

    /* Stats - Even more spacing on very small screens to prevent label cutoff */
    .hero-stats {
        gap: 16px;
        margin-bottom: 36px;
        padding-bottom: 40px;
    }

    .stat {
        min-width: 65px;
        gap: 10px;
    }

    .stat-number {
        font-size: 1.25rem;
        line-height: 1.2;
    }

    .stat-label {
        font-size: 0.6875rem;
        line-height: 1.5;
        opacity: 0.85;
    }

    .hero-mobile-buttons .btn-download {
        padding: 12px 16px;
        max-width: 260px;
    }

    .hero-mobile-buttons .btn-download i {
        font-size: 1.25rem;
    }

    .hero-mobile-buttons .btn-download .btn-large {
        font-size: 0.875rem;
    }

    .phone-mockup {
        width: 180px;
        height: 360px;
    }

    .section-header h2 {
        font-size: 1.375rem;
    }

    /* Features - Maintain 2 columns on extra small screens */
    .features-grid {
        gap: 12px;
    }

    /* Steps - Extra small screens, fit in one screen */
    .steps {
        gap: 5px;
    }

    .step {
        padding: 16px 8px;
    }

    .step-number {
        width: 28px;
        height: 28px;
        font-size: 0.5625rem;
        top: -14px;
    }

    .step-icon {
        width: 44px;
        height: 44px;
        margin-bottom: 8px;
    }

    .step-icon i {
        font-size: 1rem;
    }

    .step h3 {
        font-size: 0.8125rem;
        margin-bottom: 4px;
    }

    .step p {
        font-size: 0.625rem;
        line-height: 1.4;
    }

    /* Use Cases - 2x2 grid on extra small screens */
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .use-case-card {
        padding: 14px 8px;
        gap: 6px;
    }

    .use-case-image {
        width: 44px;
        height: 44px;
        min-width: 44px;
    }

    .use-case-image i {
        font-size: 1rem;
    }

    .use-case-content h3 {
        font-size: 0.75rem;
        margin-bottom: 3px;
    }

    .use-case-content p {
        font-size: 0.5625rem;
        margin-bottom: 4px;
        line-height: 1.3;
    }

    .use-case-tag {
        font-size: 0.5rem;
        padding: 1px 4px;
    }

    .feature-card {
        padding: 20px 14px;
    }

    /* App Preview - Extra small screens, reduce spacing */
    .app-preview-text {
        margin-bottom: 12px;
    }

    .app-preview-text > p {
        margin-bottom: 10px;
    }

    .preview-features {
        margin-bottom: 8px;
        gap: 6px;
    }

    /* Show all 3 phones on extra small mobile - fit in one screen */
    .app-preview-phones {
        gap: 3px;
        justify-content: space-between;
        flex-wrap: nowrap;
        overflow-x: visible;
        padding: 10px 0;
        margin: 0;
        margin-top: 0;
    }

    .preview-phone {
        flex: 1;
        min-width: 0;
        width: calc(33.333% - 2px);
        height: 200px;
        border-radius: 16px;
        padding: 2px;
    }

    .preview-phone.phone-center {
        flex: 1.1;
        width: calc(36% - 2px);
        height: 220px;
    }

    .preview-phone.phone-left,
    .preview-phone.phone-right {
        display: block;
        opacity: 0.9;
        transform: scale(0.95);
    }

    /* Adjust content size for very small phones */
    .preview-phone .phone-screen {
        border-radius: 14px;
    }

    .mock-header {
        padding: 6px 5px 4px;
        font-size: 0.4375rem;
    }

    .mock-camera-view {
        padding: 6px;
    }

    .camera-frame {
        width: 45px;
        height: 30px;
        margin-bottom: 4px;
    }

    .mock-camera-view span {
        font-size: 0.375rem;
    }

    .mock-button {
        padding: 4px 6px;
        font-size: 0.4375rem;
    }

    .result-detail {
        padding: 6px 5px;
    }

    .result-image {
        font-size: 0.875rem;
        margin-bottom: 3px;
    }

    .result-detail h4 {
        font-size: 0.5rem;
        margin-bottom: 1px;
    }

    .result-rating {
        font-size: 0.375rem;
        margin-bottom: 3px;
    }

    .result-tags {
        gap: 1px;
        margin-bottom: 4px;
    }

    .result-tags span {
        padding: 1px 3px;
        font-size: 0.3125rem;
    }

    .result-tips {
        padding: 3px;
    }

    .result-tips strong {
        font-size: 0.3125rem;
        margin-bottom: 1px;
    }

    .result-tips p {
        font-size: 0.25rem;
        line-height: 1.1;
    }

    .saved-list {
        padding: 5px;
        gap: 3px;
    }

    .saved-item {
        padding: 4px;
        gap: 4px;
    }

    .item-icon {
        font-size: 0.5625rem;
    }

    .item-info strong {
        font-size: 0.375rem;
    }

    .item-info small {
        font-size: 0.25rem;
    }

    /* Reviews - Even smaller on extra small screens */
    .review-card {
        min-width: 240px;
        max-width: 260px;
        padding: 18px 14px;
    }

    .review-text {
        font-size: 0.8125rem;
        margin-bottom: 16px;
    }

    .reviewer-avatar {
        width: 38px;
        height: 38px;
    }

    .cta-content h2 {
        font-size: 1.375rem;
    }

    /* Floating Cards - Extra small screens positioning (center of phone) */
    .hero-image {
        margin-top: 30px;
    }

    .floating-card {
        padding: 7px 10px;
        font-size: 0.6875rem;
    }

    .card-1 {
        /* 다국어 지원 - 더 밑으로 이동 */
        top: 35%;
        left: 50%;
        transform: translateX(-50%);
    }

    .card-2 {
        /* 즉시분석 - 조금 더 왼쪽 밑으로 이동 */
        top: 25%;
        left: 0;
    }

    .card-3 {
        /* 위치기반 - 오른쪽으로 이동 */
        top: 20%;
        right: 0;
    }

    /* Hero - Extra padding on very small screens */
    .hero {
        padding-bottom: 80px;
    }

    /* Hero wave - More space to ensure stats labels are visible and wave is not cut */
    .hero-mobile-buttons {
        margin-bottom: 45px;
        padding-bottom: 30px;
    }

    /* Hide wave pattern on extra small mobile */
    .hero-wave {
        display: none;
    }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* ===== Mobile Touch Optimization ===== */
@media (max-width: 768px) {
    /* Ensure minimum touch target size of 44px */
    .btn,
    .nav-links a,
    .mobile-menu-btn,
    .faq-question,
    .social-links a,
    .back-to-top {
        min-height: 44px;
    }

    /* Prevent zoom on input focus (iOS) */
    input, select, textarea {
        font-size: 16px;
    }

    /* Smooth scrolling optimization */
    html {
        -webkit-overflow-scrolling: touch;
    }

    /* Prevent horizontal scroll */
    body {
        overflow-x: hidden;
    }

    /* Better tap highlight */
    a, button {
        -webkit-tap-highlight-color: rgba(99, 102, 241, 0.2);
    }

    /* Mobile menu overlay */
    .nav-links.active {
        animation: slideDown 0.3s ease;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* Disable hover effects on touch devices */
    .feature-card:hover,
    .use-case-card:hover,
    .btn-download:hover,
    .btn-primary:hover {
        transform: none;
    }

    /* Active states for touch */
    .feature-card:active {
        transform: scale(0.98);
        border-color: var(--primary-light);
    }

    .btn-download:active,
    .btn-primary:active {
        transform: scale(0.98);
        opacity: 0.9;
    }

    /* Fix for iOS Safari bottom bar */
    .hero {
        min-height: calc(100vh - env(safe-area-inset-bottom));
        padding-bottom: env(safe-area-inset-bottom);
    }

    /* Safe area padding for notched devices */
    .navbar {
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }

    .footer {
        padding-bottom: env(safe-area-inset-bottom);
    }
}

/* ===== Print Styles ===== */
@media print {
    .navbar,
    .back-to-top,
    .hero-wave,
    .floating-card {
        display: none !important;
    }

    .hero {
        min-height: auto;
        padding: 40px 0;
    }

    body {
        color: #000;
        background: #fff;
    }
}