/* ==========================================
   QR CODEX Landing Page Styles
   ========================================== */

:root {
    --primary: #E91E63;
    --primary-dark: #C2185B;
    --primary-light: #F8BBD9;
    --secondary: #1a1a2e;
    --text: #1a1a2e;
    --text-light: #6b7280;
    --bg: #ffffff;
    --bg-alt: #f9fafb;
    --border: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==========================================
   Navigation
   ========================================== */

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

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo img {
    height: 72px;
    width: auto;
}

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

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

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

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

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
}

/* ==========================================
   Buttons
   ========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

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

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-store {
    background: var(--secondary);
    color: white;
    padding: 12px 20px;
    gap: 12px;
}

.btn-store svg {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.btn-store div {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.btn-store .store-label {
    font-size: 11px;
    font-weight: 400;
    opacity: 0.8;
}

.btn-store .store-name {
    font-size: 17px;
    font-weight: 600;
    line-height: 1.2;
}

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

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

.btn-store-light:hover {
    border-color: var(--primary);
    background: white;
}

/* ==========================================
   Hero Section
   ========================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-light) 0%, transparent 50%);
    opacity: 0.3;
    z-index: -1;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}

.badge-icon {
    font-size: 16px;
}

.hero h1 {
    font-size: clamp(40px, 5vw, 64px);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

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

.hero-description {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 500px;
}

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

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

.stat {
    display: flex;
    flex-direction: column;
}

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

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

/* Phone Mockup */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.phone-mockup {
    position: relative;
    z-index: 2;
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: transform 0.5s ease;
}

.phone-mockup:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.phone-frame {
    width: 280px;
    height: 580px;
    background: linear-gradient(135deg, #2d3436 0%, #1a1a2e 50%, #16213e 100%);
    border-radius: 45px;
    padding: 10px;
    box-shadow: 
        0 50px 100px -20px rgba(0, 0, 0, 0.5),
        0 30px 60px -30px rgba(0, 0, 0, 0.6),
        inset 0 1px 0 rgba(255, 255, 255, 0.1),
        inset 0 -1px 0 rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.05);
    position: relative;
}

/* Side buttons */
.phone-frame::before {
    content: '';
    position: absolute;
    right: -3px;
    top: 120px;
    width: 3px;
    height: 35px;
    background: linear-gradient(180deg, #3d3d3d 0%, #2a2a2a 100%);
    border-radius: 0 2px 2px 0;
}

.phone-frame::after {
    content: '';
    position: absolute;
    right: -3px;
    top: 170px;
    width: 3px;
    height: 60px;
    background: linear-gradient(180deg, #3d3d3d 0%, #2a2a2a 100%);
    border-radius: 0 2px 2px 0;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #fff;
    border-radius: 38px;
    overflow: hidden;
    position: relative;
}

/* Screen reflection */
.phone-screen::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        115deg,
        transparent 0%,
        transparent 40%,
        rgba(255, 255, 255, 0.05) 42%,
        rgba(255, 255, 255, 0.1) 50%,
        rgba(255, 255, 255, 0.05) 58%,
        transparent 60%,
        transparent 100%
    );
    pointer-events: none;
    z-index: 5;
    border-radius: 38px;
}

.app-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    border-radius: 38px;
}

.app-preview {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.app-header {
    background: var(--primary);
    color: white;
    padding: 48px 20px 20px;
    font-weight: 600;
    font-size: 18px;
    text-align: center;
}

.qr-display {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.qr-code {
    width: 160px;
    height: 160px;
    background: 
        linear-gradient(90deg, var(--primary) 20%, transparent 20%),
        linear-gradient(var(--primary) 20%, transparent 20%),
        linear-gradient(90deg, transparent 80%, var(--primary) 80%),
        linear-gradient(transparent 80%, var(--primary) 80%);
    background-size: 20px 20px;
    background-position: 0 0, 0 0, 0 0, 0 0;
    border-radius: 8px;
    position: relative;
}

.qr-code::before {
    content: '';
    position: absolute;
    inset: 20%;
    background: white;
    border-radius: 4px;
}

.qr-code::after {
    content: 'QR';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 24px;
    color: var(--primary);
}

.app-tabs {
    display: flex;
    border-top: 1px solid var(--border);
}

.tab {
    flex: 1;
    padding: 16px;
    text-align: center;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-light);
}

.tab.active {
    color: var(--primary);
    border-top: 2px solid var(--primary);
    margin-top: -1px;
}

/* Floating Elements */
.floating-elements {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.float-card {
    position: absolute;
    background: white;
    padding: 12px 16px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 500;
    animation: float 6s ease-in-out infinite;
}

.float-icon {
    font-size: 20px;
}

.float-1 {
    top: 10%;
    right: 0;
    animation-delay: 0s;
}

.float-2 {
    bottom: 30%;
    left: 0;
    animation-delay: 2s;
}

.float-3 {
    bottom: 10%;
    right: 10%;
    animation-delay: 4s;
}

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

/* ==========================================
   Sections Common
   ========================================== */

section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-header p {
    font-size: 18px;
    color: var(--text-light);
}

/* ==========================================
   Features Section
   ========================================== */

.features {
    background: var(--bg-alt);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ==========================================
   QR Types Section
   ========================================== */

.qr-types {
    overflow: hidden;
}

.types-carousel {
    display: flex;
    gap: 20px;
    animation: scroll 20s linear infinite;
    width: max-content;
}

.type-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px 32px;
    background: var(--bg-alt);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    min-width: 120px;
}

.type-icon {
    font-size: 32px;
}

.type-item span:last-child {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-light);
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ==========================================
   Themes Section
   ========================================== */

.themes {
    background: var(--bg-alt);
}

.themes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.theme-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 20px;
    border: 1px solid var(--border);
    text-align: center;
    transition: var(--transition);
    position: relative;
}

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

.theme-preview {
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--theme-color) 0%, color-mix(in srgb, var(--theme-color) 70%, white) 100%);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.theme-qr {
    width: 60%;
    aspect-ratio: 1;
    background: white;
    border-radius: 4px;
    opacity: 0.9;
}

.theme-name {
    font-weight: 600;
    font-size: 15px;
}

.theme-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--primary);
    color: white;
    font-size: 10px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 4px;
    text-transform: uppercase;
}

.themes-note {
    text-align: center;
    margin-top: 32px;
    color: var(--text-light);
    font-size: 15px;
}

/* ==========================================
   Languages Section
   ========================================== */

.languages-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}

.lang-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    background: var(--bg-alt);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.lang-item:hover {
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

.lang-flag {
    font-size: 32px;
}

.lang-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-light);
}

/* ==========================================
   CTA Section
   ========================================== */

.cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ==========================================
   Footer
   ========================================== */

.footer {
    background: var(--secondary);
    color: white;
    padding: 60px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 48px;
}

.footer-logo {
    height: 36px;
    margin-bottom: 16px;
    filter: brightness(0) invert(1);
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    font-size: 15px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-column h4 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
    color: rgba(255,255,255,0.5);
}

.footer-column a {
    display: block;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    font-size: 15px;
    margin-bottom: 12px;
    transition: var(--transition);
}

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

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

.footer-bottom p {
    font-size: 14px;
    color: rgba(255,255,255,0.5);
}

.footer-bottom a {
    color: var(--primary-light);
    text-decoration: none;
}

/* ==========================================
   Responsive Design
   ========================================== */

@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        order: 2;
    }
    
    .hero-visual {
        order: 1;
        margin-bottom: 40px;
    }
    
    .hero-description {
        margin: 0 auto 32px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .floating-elements {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .themes-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .languages-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .phone-frame {
        width: 240px;
        height: 480px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .themes-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .languages-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .btn-store {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    section {
        padding: 60px 0;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .themes-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    
    .languages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}