:root {
    --bg-primary: #f8f9fc;
    --bg-secondary: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.65);
    --bg-glass-border: rgba(255, 255, 255, 0.25);
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a6a;
    --text-muted: #6b6b8a;
    --accent: #6c5ce7;
    --accent-light: #a29bfe;
    --accent-gradient: linear-gradient(135deg, #6c5ce7, #fd79a8);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 12px 48px rgba(108, 92, 231, 0.15);
    --radius: 20px;
    --radius-sm: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-glass: rgba(26, 26, 46, 0.75);
    --bg-glass-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f0f0f5;
    --text-secondary: #b0b0cc;
    --text-muted: #80809a;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 12px 48px rgba(108, 92, 231, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, system-ui, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid var(--bg-glass-border);
    box-shadow: var(--shadow);
}

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

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    background: rgba(108, 92, 231, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 40px;
    margin-bottom: 0.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 60px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 16px rgba(108, 92, 231, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(108, 92, 231, 0.4);
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--text-muted);
}

.btn-ghost:hover {
    background: var(--bg-secondary);
    border-color: var(--accent);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--accent);
}

.btn-outline:hover {
    background: var(--accent);
    color: white;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0.75rem 0;
    background: var(--bg-glass);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--bg-glass-border);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
}

.brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--accent-gradient);
    color: white;
    border-radius: 10px;
    font-weight: 700;
    font-size: 1rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-gradient);
    border-radius: 4px;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    border-radius: 40px;
    background: var(--bg-secondary);
    padding: 0.25rem 0.5rem;
}

.theme-toggle .sun,
.theme-toggle .moon {
    opacity: 0.5;
    transition: var(--transition);
}

[data-theme="dark"] .theme-toggle .sun { opacity: 1; }
[data-theme="dark"] .theme-toggle .moon { opacity: 0.5; }
[data-theme="light"] .theme-toggle .sun { opacity: 0.5; }
[data-theme="light"] .theme-toggle .moon { opacity: 1; }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 4px;
    transition: var(--transition);
}

.hero {
    padding: 4rem 0 3rem;
}

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

.hero-badge {
    display: inline-block;
    background: rgba(108, 92, 231, 0.1);
    color: var(--accent);
    padding: 0.25rem 1rem;
    border-radius: 40px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.25rem;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 480px;
    margin-bottom: 2rem;
}

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

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.floating-cards {
    position: relative;
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
}

.float-card {
    position: absolute;
    padding: 0.5rem 1rem;
    border-radius: 40px;
    font-weight: 600;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: float 6s ease-in-out infinite;
}

.float-card span:first-child {
    font-size: 1.2rem;
}

.card-1 { top: 10%; left: 0; animation-delay: 0s; }
.card-2 { top: 30%; right: 0; animation-delay: 1s; }
.card-3 { bottom: 30%; left: 5%; animation-delay: 2s; }
.card-4 { bottom: 10%; right: 10%; animation-delay: 0.5s; }

.phone-mockup {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 390px;
    border-radius: 32px;
    padding: 0.75rem;
    background: var(--bg-secondary);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.mockup-screen {
    width: 100%;
    height: 100%;
    border-radius: 24px;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.mockup-apps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    font-size: 1.6rem;
}

.mockup-apps span {
    text-align: center;
    padding: 0.25rem;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

.stats {
    padding: 2rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.stat-number {
    display: block;
    font-size: 2.4rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.featured {
    padding: 4rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.4rem;
    font-weight: 700;
}

.section-header p {
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0.5rem auto 0;
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
}

.app-card {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
    box-shadow: var(--shadow);
}

.app-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: var(--shadow-hover);
}

.app-card .icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 0.5rem;
}

.app-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
}

.app-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.section-cta {
    text-align: center;
    margin-top: 2.5rem;
}

.page-header {
    padding: 3rem 0 1.5rem;
    text-align: center;
}

.page-header h1 {
    font-size: 2.8rem;
    font-weight: 700;
}

.page-header p {
    color: var(--text-secondary);
}

.filter-section {
    padding: 1rem 0 2rem;
}

.filter-bar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.search-input {
    padding: 0.75rem 1.25rem;
    border-radius: 60px;
    border: 1px solid var(--bg-glass-border);
    background: var(--bg-secondary);
    color: var(--text-primary);
    width: 100%;
    max-width: 400px;
    font-family: inherit;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.1);
}

.filter-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 0.4rem 1rem;
    border-radius: 40px;
    border: 1px solid var(--bg-glass-border);
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.apps-grid-section {
    padding: 1rem 0 4rem;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.about-content {
    padding: 2rem 0 4rem;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.about-stats {
    display: flex;
    gap: 2rem;
    margin-top: 1.5rem;
}

.about-stat {
    text-align: center;
}

.about-stat span:first-child {
    display: block;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
}

.about-stat span:last-child {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.about-visual {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.about-card {
    padding: 1.5rem;
    border-radius: var(--radius);
    background: var(--bg-secondary);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.about-card:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-hover);
}

.about-icon {
    font-size: 2rem;
    margin-bottom: 0.25rem;
}

.about-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.about-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.contact-content {
    padding: 2rem 0 4rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.contact-card {
    padding: 1.25rem;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.contact-icon {
    font-size: 1.8rem;
    margin-bottom: 0.25rem;
}

.contact-card h3 {
    font-size: 0.9rem;
}

.contact-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.contact-card a {
    color: var(--accent);
    text-decoration: none;
}

.contact-form-wrapper {
    display: flex;
    align-items: stretch;
}

.contact-form {
    padding: 2rem;
    border-radius: var(--radius);
    background: var(--bg-secondary);
    box-shadow: var(--shadow);
    width: 100%;
}

.contact-form h2 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--bg-glass-border);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.1);
}

.form-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 0.75rem;
}

.footer {
    padding: 3rem 0 1.5rem;
    border-top: 1px solid var(--bg-glass-border);
    margin-top: 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.footer-links h4 {
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

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

.footer-links li {
    margin-bottom: 0.4rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
}

.social-icons {
    display: flex;
    gap: 0.75rem;
    font-size: 1.4rem;
}

.social-icons a {
    text-decoration: none;
    transition: var(--transition);
    opacity: 0.7;
}

.social-icons a:hover {
    opacity: 1;
    transform: scale(1.1);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--bg-glass-border);
    font-size: 0.8rem;
    color: var(--text-muted);
}

@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .hero-visual {
        min-height: 300px;
    }
    .about-grid {
        grid-template-columns: 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        padding: 1rem 0;
        gap: 1rem;
        background: var(--bg-secondary);
        border-radius: var(--radius);
        margin-top: 0.5rem;
        box-shadow: var(--shadow);
    }
    .nav-links.open {
        display: flex;
    }
    .nav-container {
        flex-wrap: wrap;
    }
    .hero-title {
        font-size: 2.2rem;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-info {
        grid-template-columns: 1fr 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .apps-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    .phone-mockup {
        width: 150px;
        height: 300px;
    }
    .mockup-apps {
        font-size: 1.2rem;
    }
    .float-card {
        font-size: 0.7rem;
        padding: 0.25rem 0.75rem;
    }
    .contact-info {
        grid-template-columns: 1fr;
    }
    .filter-tags {
        gap: 0.3rem;
    }
    .filter-btn {
        font-size: 0.7rem;
        padding: 0.3rem 0.7rem;
    }
}