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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --dark-bg: #0f172a;
    --dark-card: #1e293b;
    --dark-border: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1a1f3a 100%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== HEADER & NAVIGATION ===== */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--dark-border);
    z-index: 1000;
    padding: 1rem 2rem;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

nav a:hover {
    color: var(--primary);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

nav a:hover::after {
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 0.7rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: 0.8rem 1.8rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 0.95rem;
    display: inline-block;
}

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

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ===== HERO SECTION ===== */
.hero {
    margin-top: 80px;
    padding: 6rem 2rem;
    text-align: center;
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero p {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.scroll-indicator {
    animation: bounce 2s infinite;
    margin-top: 2rem;
    font-size: 2rem;
}

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

/* ===== APPLICATIONS PREVIEW SECTION ===== */
.apps-preview-section {
    padding: 6rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.apps-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.app-preview-card {
    background: linear-gradient(135deg, var(--dark-card) 0%, rgba(30, 41, 59, 0.5) 100%);
    border: 1px solid var(--dark-border);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.app-preview-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.app-preview-card:hover::before {
    left: 100%;
}

.app-preview-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

.app-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.app-preview-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.app-category {
    display: inline-block;
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.app-preview-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
    flex-grow: 1;
}

.app-preview-card .btn-primary {
    align-self: flex-start;
}

.view-all-apps {
    text-align: center;
    margin-top: 2rem;
}

/* ===== FEATURES SECTION ===== */
.features-section {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 0.8) 100%);
    border-top: 1px solid var(--dark-border);
    border-bottom: 1px solid var(--dark-border);
}

.features-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: linear-gradient(135deg, var(--dark-card) 0%, rgba(30, 41, 59, 0.5) 100%);
    border: 1px solid var(--dark-border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 15px 35px rgba(99, 102, 241, 0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== CTA SECTION ===== */
.cta-section {
    padding: 6rem 2rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
    border-top: 1px solid var(--dark-border);
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-section p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== PAGE CONTAINER ===== */
.page-container {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
    padding: 3rem 2rem;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

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

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.breadcrumb {
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.breadcrumb a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: var(--secondary);
}

/* ===== APP DETAIL PAGE ===== */
.app-detail-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
    background: linear-gradient(135deg, var(--dark-card) 0%, rgba(30, 41, 59, 0.5) 100%);
    padding: 3rem;
    border-radius: 12px;
    border: 1px solid var(--dark-border);
}

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

.app-detail-info .app-category {
    display: inline-block;
    margin-bottom: 1rem;
}

.app-detail-info p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 1.05rem;
}

.app-detail-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.btn-store {
    flex: 1;
    min-width: 120px;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--dark-border);
    color: var(--text-secondary);
    display: inline-block;
}

.btn-store:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-store.android {
    background: rgba(52, 168, 83, 0.1);
    border-color: #34a853;
    color: #34a853;
}

.btn-store.android:hover {
    background: rgba(52, 168, 83, 0.2);
}

.btn-store.ios {
    background: rgba(0, 0, 0, 0.3);
    border-color: #555;
    color: #aaa;
}

.btn-store.ios:hover {
    background: rgba(0, 0, 0, 0.5);
}

.btn-store.windows {
    background: rgba(0, 120, 215, 0.1);
    border-color: #0078d7;
    color: #0078d7;
}

.btn-store.windows:hover {
    background: rgba(0, 120, 215, 0.2);
}

.app-detail-image {
    text-align: center;
}

.app-detail-image img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
}

/* ===== FEATURES LIST ===== */
.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.feature-item {
    background: linear-gradient(135deg, var(--dark-card) 0%, rgba(30, 41, 59, 0.5) 100%);
    border: 1px solid var(--dark-border);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-item:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.feature-item h3 {
    color: var(--primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== CONTACT FORM ===== */
.contact-form {
    display: grid;
    gap: 1.5rem;
    background: linear-gradient(135deg, var(--dark-card) 0%, rgba(30, 41, 59, 0.5) 100%);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--dark-border);
    max-width: 700px;
    margin: 0 auto;
}

.form-group {
    display: grid;
    gap: 0.5rem;
}

.form-group label {
    text-align: left;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--dark-border);
    color: var(--text-primary);
    padding: 0.8rem;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(15, 23, 42, 0.8);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.contact-form button {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.contact-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

/* ===== FOOTER ===== */
footer {
    background: rgba(15, 23, 42, 0.8);
    border-top: 1px solid var(--dark-border);
    padding: 3rem 2rem 1rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.footer-section p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

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

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

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.9rem;
}

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

.footer-bottom {
    border-top: 1px solid var(--dark-border);
    padding-top: 2rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(99, 102, 241, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    header {
        padding: 1rem;
    }

    .header-container {
        padding: 0 1rem;
    }

    nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(15, 23, 42, 0.98);
        padding: 2rem;
        gap: 1rem;
        border-bottom: 1px solid var(--dark-border);
    }

    nav.active {
        display: flex;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        margin-top: 70px;
        padding: 3rem 1rem;
        min-height: auto;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn-primary, .btn-secondary {
        width: 100%;
    }

    .apps-preview-section {
        padding: 3rem 1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .apps-preview-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .features-section {
        padding: 3rem 1rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .app-detail-header {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .page-container {
        padding: 2rem 1rem;
    }

    .page-header h1 {
        font-size: 1.8rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .app-preview-card {
        padding: 1.5rem;
    }

    .app-detail-buttons {
        flex-direction: column;
    }

    .btn-store {
        width: 100%;
    }

    nav {
        top: 60px;
    }

    header {
        padding: 0.8rem;
    }

    .logo {
        font-size: 1.3rem;
    }

    .page-header h1 {
        font-size: 1.3rem;
    }
}

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

.app-preview-card {
    animation: fadeInUp 0.6s ease-out forwards;
}

.app-preview-card:nth-child(1) { animation-delay: 0.1s; }
.app-preview-card:nth-child(2) { animation-delay: 0.2s; }
.app-preview-card:nth-child(3) { animation-delay: 0.3s; }
.app-preview-card:nth-child(4) { animation-delay: 0.4s; }
.app-preview-card:nth-child(5) { animation-delay: 0.5s; }
.app-preview-card:nth-child(6) { animation-delay: 0.6s; }