/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== NAVIGATION ===== */
.nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
}

.logo-text {
    font-size: 20px;
    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;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s;
}

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

.btn-nav {
    background: var(--primary);
    color: white;
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s;
}

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

/* ===== HERO SECTION ===== */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 64px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
}

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

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

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

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

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 64px;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-tertiary);
    font-weight: 500;
}

/* ===== FEATURES SECTION ===== */
.features {
    padding: 120px 0;
    background: var(--bg-primary);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: white;
}

.feature-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-description {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== DOWNLOAD SECTION ===== */
.download {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.download-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.download-description {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
}

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

.download-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    color: var(--text-secondary);
}

.download-feature svg {
    color: var(--primary);
    flex-shrink: 0;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: var(--bg-primary);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all 0.3s;
}

.download-btn:hover {
    transform: translateX(8px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.download-btn-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.download-btn-text {
    flex: 1;
}

.download-btn-label {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.download-btn-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.android-btn .download-btn-icon {
    background: linear-gradient(135deg, #34a853 0%, #2d8f47 100%);
}

.ios-coming-soon {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    color: var(--text-tertiary);
    font-size: 15px;
}

.ios-coming-soon svg {
    flex-shrink: 0;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 64px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    line-height: 1.6;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 15px;
    margin-bottom: 12px;
    transition: color 0.2s;
}

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

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .download-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        gap: 16px;
    }

    .nav-link:not(.btn-nav) {
        display: none;
    }

    .hero {
        padding: 80px 0 60px;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-stats {
        gap: 32px;
    }

    .section-title {
        font-size: 36px;
    }

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

    .download-title {
        font-size: 36px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

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

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .btn {
        padding: 14px 24px;
        font-size: 15px;
    }

    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    .download-title {
        font-size: 28px;
    }
}

/* ===== FEATURE CARD ENHANCEMENTS ===== */
.feature-card {
    cursor: pointer;
    position: relative;
}

.feature-click-hint {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 8px 12px;
    background: rgba(79, 70, 229, 0.1);
    border: 1px solid rgba(79, 70, 229, 0.2);
    border-radius: var(--radius);
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.feature-card:hover .feature-click-hint {
    opacity: 1;
    transform: translateY(0);
}

.feature-click-hint svg {
    width: 16px;
    height: 16px;
    color: var(--primary);
}

/* ===== MODAL STYLES ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-content {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    position: relative;
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 32px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    margin: 0;
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 32px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-body {
    padding: 0;
}

.modal-video {
    width: 100%;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.modal-media {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
    display: block;
}

.modal-description {
    padding: 24px 32px;
}

.modal-description p {
    margin: 0;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* ===== MODAL RESPONSIVE ===== */
@media (max-width: 768px) {
    .modal {
        padding: 10px;
    }

    .modal-content {
        max-height: 95vh;
    }

    .modal-header {
        padding: 20px 24px;
    }

    .modal-header h3 {
        font-size: 20px;
    }

    .modal-close {
        font-size: 24px;
        width: 32px;
        height: 32px;
    }

    .modal-description {
        padding: 20px 24px;
    }

    .modal-description p {
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .modal {
        padding: 5px;
    }

    .modal-header {
        padding: 16px 20px;
    }

    .modal-header h3 {
        font-size: 18px;
    }

    .modal-description {
        padding: 16px 20px;
    }

    .feature-click-hint {
        font-size: 12px;
        padding: 6px 10px;
    }
}

/* Blog Styles */
.blog-post {
    background: white;
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s ease;
}

.blog-post:hover {
    box-shadow: var(--shadow-md);
}

.blog-post-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.blog-post-date {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: 1.5rem;
}

.blog-post-content {
    color: var(--text-secondary);
    line-height: 1.7;
}

.blog-post-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.blog-post-content ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.blog-post-content li {
    margin-bottom: 0.5rem;
}

.blog-post-content a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.blog-post-content a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .blog-post {
        padding: 1.5rem;
    }

    .blog-post-title {
        font-size: 1.5rem;
    }

    .blog-post-content h4 {
        font-size: 1.125rem;
    }
}