/* ============================================
   CHAI & BITES - 3D CAFE EXPERIENCE
   Terracotta Studio Palette
   ============================================ */

:root {
    /* Terracotta Studio Colors */
    --color-primary: #B5563E;
    --color-primary-light: #D4896A;
    --color-secondary: #C9A87C;
    --color-background: #F2E6D9;
    --color-background-light: #F9F3EB;
    --color-text: #3D2B1F;
    --color-text-light: #5B3A29;
    --color-accent: #7D3C50;
    --color-white: #FFFFFF;
    --color-cream: #FDF8F3;
    
    /* Typography */
    --font-display: 'Zodiak', Georgia, serif;
    --font-body: 'Cabinet Grotesk', -apple-system, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(61, 43, 31, 0.08);
    --shadow-md: 0 4px 16px rgba(61, 43, 31, 0.12);
    --shadow-lg: 0 8px 32px rgba(61, 43, 31, 0.16);
    --shadow-xl: 0 16px 48px rgba(61, 43, 31, 0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ============================================
   RESET & BASE
   ============================================ */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-xl);
    background: rgba(242, 230, 217, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(181, 86, 62, 0.1);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.brand-icon {
    font-size: 1.75rem;
}

.nav-links {
    display: flex;
    gap: var(--space-lg);
}

.nav-link {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

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

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3xl) var(--space-xl);
    padding-top: calc(var(--space-3xl) + 80px);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, var(--color-primary-light) 0%, transparent 70%);
    opacity: 0.3;
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.1); opacity: 0.4; }
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-text);
    margin-bottom: var(--space-md);
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
    animation: fadeInUp 1s ease-out 0.2s both;
}

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

.hero-cta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
}

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

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

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

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

/* Hero Visual - Floating Food */
.hero-visual {
    flex: 1;
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-food {
    position: absolute;
    font-size: 4rem;
    animation: float 6s ease-in-out infinite;
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.15));
}

.floating-food:nth-child(1) {
    top: 10%;
    left: 20%;
    animation-delay: 0s;
}

.floating-food:nth-child(2) {
    top: 30%;
    right: 15%;
    animation-delay: 1.5s;
}

.floating-food:nth-child(3) {
    bottom: 20%;
    left: 30%;
    animation-delay: 3s;
}

.floating-food:nth-child(4) {
    bottom: 30%;
    right: 25%;
    animation-delay: 4.5s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    25% {
        transform: translateY(-20px) rotate(5deg);
    }
    50% {
        transform: translateY(-10px) rotate(-3deg);
    }
    75% {
        transform: translateY(-25px) rotate(3deg);
    }
}

/* ============================================
   SCANNER SECTION
   ============================================ */

.scanner-section {
    padding: var(--space-3xl) 0;
    background: var(--color-cream);
    position: relative;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    text-align: center;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
}

.scanner-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.scanner-box {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-lg);
}

.qr-reader {
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.qr-reader video {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.scanner-overlay {
    position: absolute;
    top: var(--space-lg);
    left: var(--space-lg);
    right: var(--space-lg);
    bottom: var(--space-lg);
    pointer-events: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.scanner-frame {
    width: 200px;
    height: 200px;
    border: 3px solid var(--color-primary);
    border-radius: var(--radius-md);
    position: relative;
}

.scanner-frame::before,
.scanner-frame::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 3px solid var(--color-primary);
}

.scanner-frame::before {
    top: -3px;
    left: -3px;
    border-right: none;
    border-bottom: none;
}

.scanner-frame::after {
    bottom: -3px;
    right: -3px;
    border-left: none;
    border-top: none;
}

.scanner-text {
    margin-top: var(--space-md);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.9rem;
    background: rgba(255,255,255,0.9);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
}

.scanner-instructions {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.instruction-step {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.instruction-step:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.instruction-step p {
    font-size: 1rem;
    color: var(--color-text);
}

/* ============================================
   VIDEO MODAL
   ============================================ */

.video-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(61, 43, 31, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    backdrop-filter: blur(10px);
}

.video-modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--color-cream);
    border-radius: var(--radius-lg);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    position: relative;
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 40px;
    height: 40px;
    background: var(--color-white);
    border: none;
    border-radius: var(--radius-full);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: rotate(90deg);
}

.video-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    min-height: 500px;
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: var(--color-text);
}

.video-info {
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.video-title {
    font-family: var(--font-display);
    font-size: 2rem;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.video-description {
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.video-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.btn-order,
.btn-share {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
}

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

.btn-order:hover {
    background: var(--color-accent);
    transform: scale(1.02);
}

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

.btn-share:hover {
    background: var(--color-secondary);
    color: var(--color-white);
}

/* ============================================
   MENU SECTION
   ============================================ */

.menu-section {
    padding: var(--space-3xl) 0;
    background: var(--color-background);
}

.menu-categories {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.category-btn {
    padding: var(--space-sm) var(--space-lg);
    border: 2px solid var(--color-secondary);
    background: transparent;
    color: var(--color-text);
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.category-btn:hover,
.category-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.menu-item {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.menu-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.menu-item.hidden {
    display: none;
}

.item-image {
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.item-emoji {
    font-size: 5rem;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.qr-hint {
    position: absolute;
    bottom: var(--space-sm);
    right: var(--space-sm);
    background: rgba(255,255,255,0.95);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.qr-hint::before {
    content: '📱';
}

.item-info {
    padding: var(--space-lg);
}

.item-name {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
    color: var(--color-text);
}

.item-desc {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.item-price {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 1.1rem;
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */

.experience-section {
    padding: var(--space-3xl) 0;
    background: var(--color-cream);
}

.experience-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
    max-width: 1000px;
    margin: 0 auto;
}

.exp-step {
    text-align: center;
    padding: var(--space-xl);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    min-width: 250px;
    transition: all var(--transition-normal);
}

.exp-step:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.exp-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.exp-step h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.exp-step p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

.exp-arrow {
    font-size: 2rem;
    color: var(--color-primary);
    opacity: 0.5;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--color-text);
    color: var(--color-cream);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: 1.75rem;
    margin-bottom: var(--space-sm);
}

.footer-tagline {
    color: var(--color-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--space-lg);
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
}

.social-link {
    font-size: 1.5rem;
    text-decoration: none;
    transition: transform var(--transition-fast);
}

.social-link:hover {
    transform: scale(1.2);
}

.footer-copyright {
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.9rem;
    opacity: 0.7;
    border-top: 1px solid rgba(201, 168, 124, 0.2);
    padding-top: var(--space-lg);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 968px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding: var(--space-2xl) var(--space-md);
    }
    
    .hero-visual {
        height: 300px;
        margin-top: var(--space-xl);
    }
    
    .scanner-container {
        grid-template-columns: 1fr;
    }
    
    .video-container {
        grid-template-columns: 1fr;
    }
    
    .video-container video {
        height: 300px;
    }
    
    .experience-steps {
        flex-direction: column;
    }
    
    .exp-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 640px) {
    .navbar {
        padding: var(--space-sm) var(--space-md);
    }
    
    .nav-links {
        display: none;
    }
    
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .menu-grid {
        grid-template-columns: 1fr;
    }
    
    .menu-categories {
        gap: var(--space-xs);
    }
    
    .category-btn {
        padding: var(--space-xs) var(--space-md);
        font-size: 0.85rem;
    }
}

/* ============================================
   VIDEO PLACEHOLDER STYLES
   ============================================ */

.video-placeholder {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, var(--color-secondary) 100%);
    color: var(--color-white);
    text-align: center;
    padding: var(--space-xl);
}

.placeholder-content {
    animation: fadeInUp 0.5s ease;
}

.placeholder-emoji {
    font-size: 6rem;
    margin-bottom: var(--space-md);
    animation: bounce 2s ease-in-out infinite;
}

.placeholder-content h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.placeholder-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: var(--space-xl);
}

.placeholder-animation {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    justify-content: center;
}

.spinner {
    width: 30px;
    height: 30px;
    border: 3px solid rgba(255,255,255,0.3);
    border-top-color: var(--color-white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.loading {
    background: linear-gradient(90deg, var(--color-background) 25%, var(--color-cream) 50%, var(--color-background) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* Scroll reveal animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}