/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #ff6b9d;
    --secondary-color: #c44569;
    --accent-color: #f8b5d3;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --bg-gradient-romantic: linear-gradient(135deg, #ff6b9d 0%, #c44569 50%, #f8b5d3 100%);
    --shadow-light: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 20px 40px rgba(0, 0, 0, 0.2);
    --border-radius: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.highlight {
    background: var(--bg-gradient-romantic);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo i {
    font-size: 1.8rem;
    animation: heartbeat 2s infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--bg-gradient-romantic);
    transition: width 0.3s;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--bg-gradient);
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.hero-content {
    color: white;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    font-family: 'Dancing Script', cursive;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.8;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.ai-companion {
    position: relative;
    width: 300px;
    height: 300px;
}

.companion-face {
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    position: relative;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.eyes {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 2rem;
}

.eye {
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    position: relative;
    animation: blink 4s infinite;
}

.eye::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
}

@keyframes blink {
    0%, 90%, 100% { transform: scaleY(1); }
    95% { transform: scaleY(0.1); }
}

.mouth {
    position: absolute;
    bottom: 30%;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 20px;
    border: 3px solid white;
    border-top: none;
    border-radius: 0 0 40px 40px;
}

.blush {
    position: absolute;
    width: 30px;
    height: 15px;
    background: rgba(255, 182, 193, 0.6);
    border-radius: 50%;
    top: 50%;
}

.left-blush {
    left: 20px;
    animation: blush 3s infinite;
}

.right-blush {
    right: 20px;
    animation: blush 3s infinite 1.5s;
}

@keyframes blush {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

.companion-body {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.heart-beat {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: heartBeat 1.5s infinite;
}

@keyframes heartBeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.3); }
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.floating-hearts {
    position: absolute;
    width: 100%;
    height: 100%;
}

.floating-hearts i {
    position: absolute;
    color: rgba(255, 255, 255, 0.3);
    animation: floatHeart 8s infinite linear;
}

.floating-hearts i:nth-child(1) { left: 10%; animation-delay: 0s; }
.floating-hearts i:nth-child(2) { left: 20%; animation-delay: 2s; }
.floating-hearts i:nth-child(3) { left: 70%; animation-delay: 4s; }
.floating-hearts i:nth-child(4) { left: 80%; animation-delay: 6s; }
.floating-hearts i:nth-child(5) { left: 50%; animation-delay: 1s; }

@keyframes floatHeart {
    0% { top: 100%; opacity: 0; transform: scale(0); }
    10% { opacity: 1; transform: scale(1); }
    90% { opacity: 1; transform: scale(1); }
    100% { top: -10%; opacity: 0; transform: scale(0); }
}

/* Features Section */
.features {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--bg-gradient-romantic);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-medium);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-gradient-romantic);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.about-lead {
    font-size: 1.3rem;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-highlight {
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    padding: 1.5rem;
    border-radius: var(--border-radius);
    color: white;
    font-weight: 500;
    margin: 2rem 0;
}

.about-privacy {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--secondary-color);
    font-weight: 500;
}

.sarah-demo {
    display: flex;
    justify-content: center;
    align-items: center;
}

.demo-screen {
    width: 300px;
    height: 400px;
    background: var(--bg-gradient);
    border-radius: var(--border-radius);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-medium);
}

.demo-avatar {
    margin-bottom: 2rem;
}

.demo-face {
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.demo-eyes {
    display: flex;
    gap: 1rem;
}

.demo-eye {
    width: 15px;
    height: 15px;
    background: white;
    border-radius: 50%;
}

.demo-mouth {
    position: absolute;
    bottom: 20px;
    width: 30px;
    height: 15px;
    border: 2px solid white;
    border-top: none;
    border-radius: 0 0 30px 30px;
}

.demo-text {
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 10px;
    width: 100%;
}

.typing-indicator {
    display: flex;
    gap: 0.3rem;
    justify-content: center;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-10px); }
}

/* Download Section */
.download {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.download-content {
    text-align: center;
}

.download-content h2 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.download-content > p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.download-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.download-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-gradient-romantic);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: white;
}

.download-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.download-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Download Instructions */
.download-instructions {
    margin: 2rem 0;
    display: flex;
    justify-content: center;
}

.instruction-box {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    max-width: 600px;
    text-align: left;
    border-left: 4px solid var(--primary-color);
}

.instruction-box h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.instruction-box p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.instruction-box p:last-of-type {
    margin-bottom: 1.5rem;
}

.instruction-box .btn {
    margin-top: 0.5rem;
}

/* Manual Download Section */
.manual-download {
    margin: 2rem 0;
    display: flex;
    justify-content: center;
}

.manual-download-box {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    max-width: 700px;
    text-align: left;
    border-left: 4px solid #ff9800;
}

.manual-download-box h4 {
    color: #ff9800;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.manual-download-box p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.manual-download-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    transition: var(--transition);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-outline-secondary {
    background: transparent;
    color: #28a745;
    border: 2px solid #28a745;
    transition: var(--transition);
}

.btn-outline-secondary:hover {
    background: #28a745;
    color: white;
    transform: translateY(-2px);
}

.btn-outline-mega {
    background: transparent;
    color: #d63384;
    border: 2px solid #d63384;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-outline-mega:hover {
    background: linear-gradient(135deg, #d63384, #dc3545);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(214, 51, 132, 0.3);
}

.btn-outline-mega::before {
    content: '⚡';
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: 0.8rem;
    opacity: 0;
    transition: all 0.3s ease;
}

.btn-outline-mega:hover::before {
    opacity: 1;
    top: 5px;
    right: 5px;
}

.server-section {
    margin: 1.5rem 0;
    padding: 1rem;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    background: #fafafa;
}

.mega-server {
    background: linear-gradient(135deg, #fff0f6, #fce4ec);
    border: 2px solid #d63384;
    position: relative;
    overflow: hidden;
}

.mega-server::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #d63384, #dc3545, #d63384);
    animation: shimmer 2s infinite linear;
}

@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.mega-notice {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid #d63384;
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1rem;
    border-left: 4px solid #d63384;
}

.mega-notice p {
    margin: 0;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.mega-notice i {
    color: #d63384;
    margin-right: 0.5rem;
}

.mega-tip {
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    border: 1px solid #ffc107;
    border-radius: 10px;
    padding: 1rem;
    margin-top: 1rem;
    text-align: center;
}

.mega-tip p {
    margin: 0;
    color: #856404;
    font-size: 0.9rem;
}

.mega-tip i {
    color: #ffc107;
    margin-right: 0.5rem;
}

.server-section h5 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.server-divider {
    text-align: center;
    margin: 2rem 0;
    padding: 1rem 0;
    border-top: 2px dashed #ddd;
    border-bottom: 2px dashed #ddd;
}

.server-divider p {
    color: var(--text-primary);
    font-weight: 600;
    margin: 0;
}

.exe-download-section {
    margin-top: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 15px;
    text-align: center;
    border: 2px solid var(--primary-color);
}

.exe-download-section h5 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.2rem;
}

.exe-download-section p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-style: italic;
}

.system-requirements {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    max-width: 600px;
    margin: 0 auto;
}

.system-requirements h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.system-requirements ul {
    list-style: none;
    text-align: left;
}

.system-requirements li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.system-requirements i {
    color: var(--primary-color);
    width: 20px;
}

/* Requirements Sections */
.requirements-section {
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 15px;
    border-left: 4px solid var(--primary-color);
}

.requirements-section.recommended {
    background: linear-gradient(135deg, #e8f5e8, #f0f8f0);
    border-left: 4px solid #28a745;
}

.requirements-section h5 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.requirements-section.recommended h5 {
    color: #28a745;
}

.requirements-section ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.requirements-section li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 8px;
    transition: var(--transition);
}

.requirements-section li:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateX(3px);
}

.requirements-section li:last-child {
    margin-bottom: 0;
}

.requirements-section strong {
    color: var(--text-primary);
    min-width: 80px;
}

/* Warning Table */
.warning-table {
    margin-top: 2rem;
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    border: 3px solid #ff6b35;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.2);
}

.warning-table h4 {
    color: #d63031;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.warning-content {
    background: rgba(255, 255, 255, 0.8);
    padding: 1rem;
    border-radius: 10px;
    border-left: 5px solid #e17055;
}

.warning-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.warning-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 8px;
    border-left: 3px solid #ff6b35;
    transition: var(--transition);
}

.warning-list li:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateX(5px);
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.1);
}

.warning-list li:last-child {
    margin-bottom: 0;
}

.warning-list i {
    color: #d63031 !important;
    width: 16px !important;
    margin-top: 2px;
    flex-shrink: 0;
}

.warning-list strong {
    color: #2d3436;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom i {
    color: var(--primary-color);
    animation: heartbeat 2s infinite;
}

/* Instructions Section */
.instructions {
    padding: 80px 0;
    background: #f8f9fa;
}

.images-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.image-card {
    background: white;
    border-radius: 20px;
    padding: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.image-card:hover {
    transform: translateY(-15px) rotateX(8deg) rotateY(8deg) scale(1.05);
    box-shadow: 0 25px 50px rgba(255, 107, 157, 0.3);
}

.gallery-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 15px;
    transition: all 0.3s ease;
    transform: translateZ(20px);
}

.image-card:hover .gallery-img {
    transform: translateZ(40px) scale(1.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .download-options {
        grid-template-columns: 1fr;
    }
    
    .images-gallery {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

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

.feature-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Hover Effects */
.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.btn:hover {
    transform: translateY(-2px);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}