@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    /* Color Tokens (Default Dark Mode) */
    --primary: hsl(263, 90%, 62%);
    --primary-glow: hsla(263, 90%, 62%, 0.35);
    --secondary: hsl(316, 92%, 58%);
    --accent: hsl(180, 85%, 50%);
    --bg-base: hsl(230, 25%, 8%);
    --bg-surface: hsla(230, 25%, 12%, 0.7);
    --bg-surface-opaque: hsl(230, 25%, 12%);
    --text-primary: hsl(220, 20%, 94%);
    --text-secondary: hsl(220, 15%, 70%);
    --border-color: hsla(230, 25%, 22%, 0.5);
    
    --success: hsl(145, 80%, 45%);
    --warning: hsl(45, 90%, 55%);
    --danger: hsl(355, 85%, 55%);
    --info: hsl(200, 80%, 55%);
    
    /* Layout Tokens */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    --shadow-premium: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
    --shadow-inset: inset 0 1px 1px rgba(255, 255, 255, 0.05);
    --transition-smooth: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.light-theme {
    /* Color Tokens (Light Mode Toggle) */
    --bg-base: hsl(220, 30%, 97%);
    --bg-surface: hsla(220, 30%, 100%, 0.75);
    --bg-surface-opaque: hsl(220, 30%, 100%);
    --text-primary: hsl(220, 25%, 15%);
    --text-secondary: hsl(220, 15%, 45%);
    --border-color: hsla(220, 20%, 85%, 0.6);
    --shadow-premium: 0 20px 40px -15px rgba(15, 23, 42, 0.12);
    --shadow-inset: inset 0 1px 1px rgba(255, 255, 255, 0.8);
    --primary-glow: hsla(263, 90%, 62%, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(1deg); }
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 20px var(--primary-glow); }
    50% { box-shadow: 0 0 35px hsla(263, 90%, 62%, 0.6); }
}

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

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

.animate-float {
    animation: float 6s ease-in-out infinite;
}

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

.glass {
    background: var(--bg-surface);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-premium), var(--shadow-inset);
}

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

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    transition: var(--transition-smooth);
}

header.scrolled {
    padding: 12px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-radius: var(--radius-full);
    margin-top: 16px;
    transition: var(--transition-smooth);
}

header.scrolled .nav-container {
    margin-top: 0;
    border-radius: 0;
    border-left: none;
    border-right: none;
    border-top: none;
    padding: 12px 24px;
}

.logo {
    font-size: 1.45rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-dot {
    width: 10px;
    height: 10px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    box-shadow: 0 0 10px var(--primary);
}

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

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: var(--transition-smooth);
}

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

.nav-link:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: var(--transition-bounce);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: 0 10px 20px -8px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px -8px var(--primary-glow);
}

.btn-secondary {
    background: hsla(220, 20%, 50%, 0.1);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: hsla(220, 20%, 50%, 0.2);
    transform: translateY(-2px);
}

.btn-icon {
    width: 42px;
    height: 42px;
    padding: 0;
    border-radius: 50%;
    background: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-bounce);
}

.btn-icon:hover {
    transform: rotate(15deg) scale(1.08);
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    position: relative;
    background: radial-gradient(circle at 80% 20%, hsla(263, 90%, 62%, 0.12) 0%, transparent 50%),
                radial-gradient(circle at 20% 80%, hsla(316, 92%, 58%, 0.08) 0%, transparent 50%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: hsla(263, 90%, 62%, 0.12);
    border: 1px solid hsla(263, 90%, 62%, 0.25);
    color: var(--primary);
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: var(--radius-full);
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-title {
    font-size: 3.8rem;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-desc {
    color: var(--text-secondary);
    font-size: 1.15rem;
    margin-bottom: 40px;
    max-width: 540px;
}

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

.hero-social-proof {
    display: flex;
    align-items: center;
    gap: 20px;
}

.avatar-group {
    display: flex;
}

.avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 3px solid var(--bg-surface-opaque);
    margin-left: -12px;
}

.avatar:first-child {
    margin-left: 0;
}

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

.proof-stars {
    color: var(--warning);
    font-weight: 700;
    margin-bottom: 2px;
}

/* Hero Media Display */
.hero-media-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-glow-ring {
    position: absolute;
    width: 110%;
    height: 110%;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 65%);
    z-index: 0;
    filter: blur(10px);
}

.hero-image-card {
    position: relative;
    z-index: 1;
    border-radius: var(--radius-lg);
    padding: 16px;
    max-width: 100%;
}

.hero-image {
    width: 100%;
    height: auto;
    border-radius: calc(var(--radius-lg) - 8px);
    display: block;
}

/* Features Section */
.features {
    padding: 100px 0;
    position: relative;
}

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

.section-tag {
    color: var(--primary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    margin-bottom: 12px;
    display: block;
}

.section-title {
    font-size: 2.6rem;
    margin-bottom: 20px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

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

.feature-card {
    padding: 40px;
    border-radius: var(--radius-lg);
    transition: var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
}

.feature-icon-box {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, hsla(263, 90%, 62%, 0.1) 0%, hsla(316, 92%, 58%, 0.1) 100%);
    border: 1px solid var(--border-color);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 28px;
    transition: var(--transition-smooth);
}

.feature-card:hover .feature-icon-box {
    transform: scale(1.1) rotate(5deg);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.feature-card h3 {
    font-size: 1.35rem;
    margin-bottom: 16px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Variant Selector & Purchase Section */
.purchase-section {
    padding: 100px 0;
    background: radial-gradient(circle at 10% 20%, hsla(316, 92%, 58%, 0.05) 0%, transparent 40%);
}

.purchase-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 60px;
    align-items: start;
}

.product-gallery {
    position: sticky;
    top: 100px;
}

.purchase-image-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 20px;
}

.purchase-image-container img {
    width: 100%;
    height: auto;
    display: block;
}

.product-info-box h2 {
    font-size: 2.5rem;
    margin-bottom: 8px;
}

.rating-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
}

.rating-bar span {
    font-weight: 600;
}

.price-box {
    display: flex;
    align-items: baseline;
    gap: 16px;
    margin-bottom: 32px;
}

.price-current {
    font-family: 'Outfit', sans-serif;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--text-primary);
}

.price-original {
    font-family: 'Outfit', sans-serif;
    font-size: 1.6rem;
    text-decoration: line-through;
    color: var(--text-secondary);
}

.price-badge {
    padding: 4px 12px;
    background: var(--success);
    color: white;
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: var(--radius-full);
}

/* Interactive Variant selector */
.variant-selector {
    margin-bottom: 32px;
}

.selector-label {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.variant-options {
    display: flex;
    gap: 12px;
}

.variant-option {
    flex: 1;
    position: relative;
    cursor: pointer;
}

.variant-option input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.variant-card {
    padding: 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition-bounce);
}

.variant-color-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    margin: 0 auto 8px;
}

.dot-obsidian { background: #121315; border: 1px solid #3f4247; }
.dot-aurora { background: linear-gradient(135deg, #a18cd1, #fbc2eb); }
.dot-ember { background: linear-gradient(135deg, #ff9a9e, #fecfef); }

.variant-name {
    font-size: 0.85rem;
    font-weight: 600;
}

.variant-option input:checked + .variant-card {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
    background: hsla(263, 90%, 62%, 0.05);
}

/* Custom Accordion FAQ */
.faq-container {
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
    padding-top: 40px;
}

.faq-item {
    margin-bottom: 16px;
    border-radius: var(--radius-md);
}

.faq-trigger {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 20px 24px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
}

.faq-icon {
    font-size: 1.2rem;
    transition: var(--transition-smooth);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-smooth);
    padding: 0 24px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.faq-item.active .faq-content {
    max-height: 200px;
    padding-bottom: 24px;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    color: var(--primary);
}

/* Testimonials / Reviews */
.reviews-section {
    padding: 80px 0;
    overflow: hidden;
}

.reviews-carousel {
    display: flex;
    gap: 24px;
    padding: 20px 0;
    width: 100%;
}

.review-card {
    min-width: 380px;
    flex: 1;
    padding: 32px;
    border-radius: var(--radius-md);
}

.review-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.review-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.review-author h4 {
    font-size: 1rem;
}

.review-author span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.review-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Floating Facebook Pixel Console Widget */
.pixel-widget {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 360px;
    max-height: 480px;
    z-index: 1000;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    border: 1px solid hsla(220, 30%, 50%, 0.2);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.2), opacity 0.3s;
}

.pixel-widget.minimized {
    transform: translateY(calc(100% - 48px));
}

.pixel-widget-header {
    background: #18191d;
    padding: 12px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #282a32;
    cursor: pointer;
    user-select: none;
}

.pixel-widget-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 700;
    color: #f8f9fa;
    letter-spacing: 0.03em;
}

.fb-logo-mini {
    width: 20px;
    height: 20px;
    background: #1877f2;
    color: white;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.8rem;
}

.pixel-pulse {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulseGlow 2s infinite;
}

.pixel-widget-controls {
    display: flex;
    gap: 8px;
}

.pixel-ctrl-btn {
    background: none;
    border: none;
    color: #a0aec0;
    cursor: pointer;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pixel-widget-body {
    background: #101114;
    color: #e2e8f0;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.78rem;
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    height: 380px;
}

.pixel-console-log {
    border-left: 2px solid var(--border-color);
    padding-left: 10px;
    position: relative;
    animation: slideInRight 0.3s forwards;
}

.log-time {
    color: #718096;
    font-size: 0.7rem;
    display: block;
    margin-bottom: 2px;
}

.log-event-tag {
    font-weight: bold;
    display: inline-block;
    padding: 2px 6px;
    border-radius: 4px;
    margin-bottom: 4px;
    font-size: 0.72rem;
}

.tag-pageview { background: rgba(56, 161, 105, 0.2); color: #48bb78; border: 1px solid rgba(56, 161, 105, 0.3); }
.tag-viewcontent { background: rgba(49, 130, 206, 0.2); color: #4299e1; border: 1px solid rgba(49, 130, 206, 0.3); }
.tag-addtocart { background: rgba(221, 107, 32, 0.2); color: #ed8936; border: 1px solid rgba(221, 107, 32, 0.3); }
.tag-initiatecheckout { background: rgba(214, 158, 46, 0.2); color: #ecc94b; border: 1px solid rgba(214, 158, 46, 0.3); }
.tag-purchase { background: rgba(229, 62, 62, 0.2); color: #f56565; border: 1px solid rgba(229, 62, 62, 0.3); }

.log-details {
    color: #a0aec0;
    white-space: pre-wrap;
    word-break: break-all;
}

.no-logs-msg {
    text-align: center;
    color: #4a5568;
    margin-top: 40px;
}

.pixel-widget-footer {
    background: #18191d;
    padding: 8px 16px;
    border-top: 1px solid #282a32;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pixel-badge-text {
    font-size: 0.72rem;
    color: #a0aec0;
}

.pixel-dashboard-link {
    color: #4299e1;
    font-size: 0.72rem;
    text-decoration: underline;
    font-weight: 600;
}

/* Modal Form for Checkout Demo */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(8, 9, 12, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.checkout-modal {
    max-width: 500px;
    width: 100%;
    border-radius: var(--radius-lg);
    padding: 40px;
    transform: translateY(30px);
    transition: var(--transition-bounce);
}

.modal-overlay.active .checkout-modal {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: hsla(220, 20%, 50%, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
}

.order-summary {
    background: hsla(220, 20%, 50%, 0.05);
    padding: 20px;
    border-radius: var(--radius-md);
    margin-bottom: 28px;
    border: 1px solid var(--border-color);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.summary-row:last-child {
    margin-bottom: 0;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
    font-weight: bold;
    font-size: 1.05rem;
}

/* Success State Screen */
.success-screen {
    text-align: center;
    padding: 30px 0;
    display: none;
}

.success-icon {
    width: 64px;
    height: 64px;
    background: var(--success);
    border-radius: 50%;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    margin: 0 auto 20px;
}

.success-screen h3 {
    font-size: 1.8rem;
    margin-bottom: 12px;
}

.success-screen p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* Footer Section */
footer {
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
    background: hsla(230, 25%, 5%, 0.3);
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
}

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

.social-links {
    display: flex;
    gap: 16px;
}

/* Responsive styles */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-btns {
        justify-content: center;
    }
    
    .hero-social-proof {
        justify-content: center;
    }
    
    .purchase-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .product-gallery {
        position: relative;
        top: 0;
    }
}

@media (max-width: 600px) {
    .hero-title {
        font-size: 2.6rem;
    }
    
    .nav-links {
        display: none; /* simple hidden links on mobile for landing demo */
    }
    
    .pixel-widget {
        left: 12px;
        right: 12px;
        width: auto;
    }
}