/* ========================================
   REVIZ - Website Stylesheet
   Modern, clean design with gradients
   ======================================== */

/* CSS Variables */
:root {
    --primary: #6C5CE7;
    --primary-dark: #5B4BD5;
    --primary-light: #A29BFE;
    --secondary: #00CEC9;
    --accent: #FD79A8;
    --background: #0F0F23;
    --background-light: #1A1A2E;
    --surface: #16213E;
    --text: #FFFFFF;
    --text-secondary: #A0A0B0;
    --success: #00B894;
    --warning: #FDCB6E;
    --error: #E17055;
    
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-hero: linear-gradient(180deg, var(--background) 0%, var(--background-light) 100%);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 30px rgba(108, 92, 231, 0.3);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    
    --transition: all 0.3s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

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

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: var(--transition);
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
}

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

.logo-icon {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(108, 92, 231, 0.5);
    color: var(--text);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(108, 92, 231, 0.1);
    color: var(--text);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    background: var(--gradient-hero);
    padding: 120px 0 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(108, 92, 231, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(0, 206, 201, 0.1) 0%, transparent 40%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 560px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

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

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

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

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* Phone Mockup */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: #1A1A2E;
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 24px;
    background: #0F0F23;
    border-radius: 20px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--background);
    border-radius: 32px;
    overflow: hidden;
    padding: 50px 16px 16px;
}

.app-preview {
    height: 100%;
}

.preview-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 24px;
}

.preview-card {
    background: var(--surface);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 16px;
}

.preview-card h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.preview-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.preview-progress {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.preview-progress::after {
    content: '';
    display: block;
    width: 65%;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 3px;
}

.preview-xp {
    display: flex;
    justify-content: space-between;
    background: var(--surface);
    border-radius: var(--radius-md);
    padding: 16px;
    font-size: 0.9rem;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
}

.hero-wave svg {
    display: block;
    width: 100%;
}

/* ========================================
   SECTIONS COMMON
   ======================================== */
.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 48px;
}

/* ========================================
   FEATURES SECTION
   ======================================== */
.features {
    background: white;
    color: var(--background);
    padding: 100px 0;
}

.features .section-title {
    color: var(--background);
}

.features .section-subtitle {
    color: #666;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: #F8F9FA;
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--background);
}

.feature-card p {
    color: #666;
    font-size: 0.95rem;
}

/* ========================================
   CATEGORIES SECTION
   ======================================== */
.categories {
    background: var(--background-light);
    padding: 100px 0;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.category-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

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

.category-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.category-card h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.category-card > p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.category-card ul {
    text-align: left;
}

.category-card li {
    padding: 8px 0;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.category-card li:last-child {
    border-bottom: none;
}

/* ========================================
   DOWNLOAD SECTION
   ======================================== */
.download {
    background: var(--gradient-primary);
    padding: 80px 0;
    text-align: center;
}

.download-content h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.download-content p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 32px;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.store-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(0, 0, 0, 0.3);
    padding: 14px 24px;
    border-radius: var(--radius-md);
    color: var(--text);
    transition: var(--transition);
}

.store-btn:hover {
    background: rgba(0, 0, 0, 0.5);
    transform: translateY(-2px);
    color: var(--text);
}

.store-btn svg {
    width: 28px;
    height: 28px;
}

.store-btn div {
    text-align: left;
}

.store-btn span {
    display: block;
    font-size: 0.75rem;
    opacity: 0.8;
}

.store-btn strong {
    font-size: 1.1rem;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--background);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 16px;
    font-size: 0.95rem;
}

.footer-links h4 {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--text);
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

/* ========================================
   PAGE HERO (for legal pages)
   ======================================== */
.page-hero {
    background: var(--gradient-hero);
    padding: 140px 0 80px;
    text-align: center;
    position: relative;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(108, 92, 231, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.page-hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
    position: relative;
}

.page-hero p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    position: relative;
}

/* ========================================
   LEGAL CONTENT
   ======================================== */
.legal-content {
    background: white;
    color: var(--background);
    padding: 80px 0;
}

.legal-container {
    max-width: 800px;
    margin: 0 auto;
}

.last-update {
    font-size: 0.9rem;
    color: #666;
    font-style: italic;
    margin-bottom: 40px;
}

.legal-section {
    margin-bottom: 40px;
}

.legal-section h2 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--primary-light);
}

.legal-section h3 {
    font-size: 1.1rem;
    color: var(--background);
    margin: 20px 0 12px;
}

.legal-section p {
    color: #444;
    margin-bottom: 12px;
    line-height: 1.8;
}

.legal-section ul {
    margin: 16px 0;
    padding-left: 24px;
}

.legal-section li {
    color: #444;
    margin-bottom: 10px;
    position: relative;
    list-style: disc;
}

.legal-section a {
    color: var(--primary);
}

.legal-section a:hover {
    text-decoration: underline;
}

.info-box {
    background: #F8F9FA;
    border-left: 4px solid var(--primary);
    padding: 20px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 20px 0;
}

.info-box p {
    margin-bottom: 8px;
}

.info-box p:last-child {
    margin-bottom: 0;
}

/* ========================================
   PRICING SECTION
   ======================================== */
.pricing {
    background: white;
    color: var(--background);
    padding: 80px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    align-items: start;
}

.pricing-card {
    background: #F8F9FA;
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    position: relative;
    transition: var(--transition);
    border: 2px solid transparent;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.pricing-card.featured {
    border-color: var(--primary);
    background: white;
    box-shadow: var(--shadow-lg);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.pricing-header {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid #E0E0E0;
}

.pricing-header h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
    color: var(--background);
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.price .amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
}

.price .period {
    font-size: 1rem;
    color: #666;
}

.price-detail {
    color: #666;
    font-size: 0.9rem;
    margin-top: 8px;
}

.pricing-features {
    text-align: left;
    margin-bottom: 30px;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid #F0F0F0;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features .icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.pricing-features .included .icon {
    background: var(--success);
    color: white;
}

.pricing-features .excluded .icon {
    background: #DDD;
    color: #999;
}

.pricing-features .excluded {
    color: #999;
}

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

/* ========================================
   FAQ SECTION
   ======================================== */
.faq {
    background: var(--background-light);
    padding: 80px 0;
}

.faq .section-title {
    margin-bottom: 48px;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.faq-item {
    background: var(--surface);
    border-radius: var(--radius-md);
    padding: 28px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.faq-item h3 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: var(--text);
}

.faq-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-image {
        display: none;
    }
    
    .features-grid,
    .categories-grid,
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--background);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links a {
        padding: 15px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid,
    .categories-grid,
    .pricing-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .page-hero h1 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 0 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }
    
    .pricing-card {
        padding: 30px 24px;
    }
    
    .price .amount {
        font-size: 2.5rem;
    }
}