/* QUXA Speak Website Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #007AFF;
    --primary-dark: #0051D5;
    --text: #1D1D1F;
    --text-muted: #86868B;
    --bg: #FFFFFF;
    --bg-alt: #F5F5F7;
    --bg-dark: #1A1A1A;
    --border: #D2D2D7;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: var(--transition);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
    font-size: 20px;
    font-weight: 700;
}

.logo-icon {
    color: var(--primary);
}

.logo-text {
    color: var(--text);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-menu a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

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

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 18px;
    line-height: 1.7;
    margin-bottom: 32px;
    opacity: 0.95;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 12px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
}

.btn-large {
    padding: 18px 36px;
    font-size: 18px;
}

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

.stat {
    text-align: left;
}

.stat-number {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.9;
}

/* Phone Mockup */
.phone-mockup {
    position: relative;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
}

.phone-screen {
    background: white;
    border-radius: 40px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.app-preview {
    background: #F5F5F7;
    border-radius: 24px;
    padding: 24px;
    min-height: 500px;
}

.preview-header {
    text-align: center;
    margin-bottom: 24px;
}

.preview-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
}

.preview-categories {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.preview-category {
    padding: 24px;
    border-radius: 16px;
    text-align: center;
    color: white;
}

.preview-category span {
    font-size: 40px;
    display: block;
    margin-bottom: 8px;
}

.preview-category p {
    font-size: 14px;
    font-weight: 600;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--bg-alt);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
}

.feature-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-description {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Categories Section */
.categories {
    padding: 80px 0;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.category-card {
    background: white;
    padding: 32px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--category-color);
}

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

.category-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.category-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}

.category-description {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}

.category-count {
    font-size: 14px;
    font-weight: 600;
    color: var(--category-color);
}

/* Screenshots Section */
.screenshots {
    padding: 80px 0;
    background: var(--bg-alt);
}

.screenshots-placeholder {
    text-align: center;
    padding: 80px 0;
    color: var(--text-muted);
    font-size: 18px;
}

/* CTA Section */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 18px;
    margin-bottom: 32px;
    opacity: 0.95;
    line-height: 1.7;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 32px;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 48px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

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

.footer-description {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 15px;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 65px;
        left: -100%;
        flex-direction: column;
        background: white;
        width: 100%;
        padding: 24px;
        box-shadow: var(--shadow);
        transition: var(--transition);
        gap: 16px;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

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

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

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

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

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .stat-number {
        font-size: 24px;
    }
}