:root {
    --primary-color: #facc15;
    /* Yellow-400 equivalent */
    --primary-hover: #eab308;
    /* Yellow-500 */
    --secondary-color: #f3f4f6;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-light: #f9fafb;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --radius: 0.75rem;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
    font-family: var(--font-main);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    /* border-bottom: 1px solid var(--border-color); Removed as per user request */
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo {
    text-decoration: none;
    /* Removes underline from brand text */
    display: flex;
    align-items: center;
}

/* .logo img removed */

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    margin-left: 2rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Hero Section */
.hero {
    padding: 6rem 0;
    text-align: center;
    background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.hero .subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 3rem;
}

.action-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #1f2937;
    /* Dark text for contrast on yellow */
    box-shadow: 0 10px 15px -3px rgba(250, 204, 21, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(250, 204, 21, 0.4);
}

.btn-secondary {
    background-color: white;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.btn-secondary:hover {
    background-color: var(--bg-light);
    border-color: #d1d5db;
    transform: translateY(-2px);
}

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

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

.icon {
    width: 20px;
    height: 20px;
}

/* Camera Container */
#camera-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: black;
    padding: 1rem;
    border-radius: var(--radius);
    z-index: 2000;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: 90%;
    max-width: 600px;
}

#camera-container.hidden {
    display: none;
}

#input-video {
    width: 100%;
    border-radius: calc(var(--radius) - 4px);
    background: #000;
    max-height: 70vh;
}

/* Sections */
.section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.bg-light {
    background-color: var(--bg-light);
}

/* How It Works */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform 0.2s;
}

.step-card:hover {
    transform: translateY(-5px);
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.step-card p {
    color: var(--text-light);
}

/* Results Section */
.hidden {
    display: none !important;
}

.results-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
    background: white;
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.face-analysis {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    background: #000;
    min-height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-preview-wrapper {
    position: relative;
    width: 100%;
    height: auto;
}

#uploaded-image {
    width: 100%;
    display: block;
    border-radius: var(--radius);
}

#output-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    z-index: 10;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

.results-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.shape-badge {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    border-radius: var(--radius);
}

.shape-badge .label {
    display: block;
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

.shape-badge .value {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
}

.shape-desc {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Modern Recommendations */
.recommendations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.rec-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.rec-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.rec-card h4 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--text-color);
    font-size: 1.1rem;
    border-bottom: 1px solid var(--secondary-color);
    padding-bottom: 0.75rem;
}

.rec-list {
    list-style: none;
    padding-left: 0;
}

.rec-list li {
    padding: 0.5rem 0;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.rec-list li::before {
    content: "•";
    color: var(--primary-color);
    font-weight: bold;
}

/* Monetization Placeholders */
.ad-placeholder {
    background: #f3f4f6;
    border: 1px dashed #9ca3af;
    color: #6b7280;
    padding: 2rem;
    text-align: center;
    border-radius: var(--radius);
    margin: 1rem 0;
}

.affiliate-section {
    margin-top: 2rem;
    background: #f9fafb;
    padding: 1.5rem;
    border-radius: var(--radius);
}

.affiliate-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}

.affiliate-item {
    background: white;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    text-align: center;
    font-weight: 500;
    cursor: pointer;
    transition: box-shadow 0.2s;
}

.affiliate-item:hover {
    box-shadow: var(--shadow);
}

/* SEO Content */
.seo-content h2,
.seo-content h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.seo-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.faq-item {
    margin-bottom: 1.5rem;
}

.faq-item h4 {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.faq-item p {
    color: var(--text-light);
}

/* Footer */
footer {
    background: #111827;
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.footer-links {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
}

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: white;
    padding-left: 0.25rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .results-container {
        grid-template-columns: 1fr;
    }

    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links a {
        margin: 0 1rem;
    }
}

/* Dropdown Menu Styles */
.dropdown {
    position: relative;
    display: inline-block;
    margin-left: 2rem;
}

.dropdown>a {
    margin-left: 0;
    /* Override default nav link margin */
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.dropdown>a::after {
    content: "▼";
    font-size: 0.7em;
    margin-top: 2px;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: white;
    min-width: 220px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    z-index: 1001;
    border-radius: var(--radius);
    padding: 0.5rem 0;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 0.5rem;
    border: 1px solid var(--border-color);
    animation: fadeIn 0.2s ease-in-out;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    color: var(--text-color);
    padding: 0.75rem 1.25rem;
    text-decoration: none;
    display: block;
    margin-left: 0;
    font-size: 0.95rem;
    transition: background-color 0.2s;
}

.dropdown-content a:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -10px);
    }

    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

@media (max-width: 768px) {
    .dropdown {
        margin-left: 0;
        margin: 0 1rem;
        display: block;
        text-align: center;
    }

    .dropdown-content {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        background: var(--bg-light);
        margin-top: 0.5rem;
    }

    .dropdown:hover .dropdown-content {
        display: block;
    }
}

/* Hero Action Boxes */
.hero-actions-container {
    display: flex;
    justify-content: center;
    gap: 3rem;
    /* Space between boxes */
    margin-top: 3rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

@media (max-width: 640px) {
    .hero-actions-container {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }

    .action-box {
        width: 100%;
        max-width: 320px;
    }
}

.action-box {
    background: white;
    border-radius: var(--radius);
    padding: 2.5rem;
    width: 280px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
    /* Subtle high-quality shadow */
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    text-align: center;
}

.action-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.box-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: var(--bg-light);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.3s;
}

.action-box:hover .box-icon {
    background: var(--primary-color);
    /* Highlight icon on hover */
    color: white;
    /* Optional if icon was text */
}

.action-box h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
    color: var(--text-color);
}

.action-box p {
    margin-bottom: 2rem;
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.5;
}

.action-box .btn {
    width: 100%;
    /* Full width buttons inside boxes */
}

/* --- New Analysis Panel Styles --- */
.analysis-panel {
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-top: 2rem;
}

.analysis-panel h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    color: var(--text-color);
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 0.5rem;
}

.measurement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
}

.metric-card {
    background: white;
    padding: 1rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    text-align: center;
    border: 1px solid #e5e7eb;
    transition: transform 0.2s;
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.metric-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: #64748b;
    margin-bottom: 0.25rem;
    letter-spacing: 0.05em;
}

.metric-value {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-color);
}

/* --- Blog Section Styles --- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* --- Face Shape Slider Styles --- */
.slider-section {
    padding: 3rem 0 1rem;
    /* Reduced bottom padding from 5rem */
    overflow: hidden;
    background: #fdfdfd;
}

#how-it-works {
    padding-top: 1rem;
    padding-bottom: 0;
    /* Minimized bottom space */
}

#blog-section {
    padding-top: 1rem;
    /* Minimized top space */
}

/* Professional styling for About Section Title */
#about h2:first-of-type {
    font-size: 2.25rem;
    font-weight: 800;
    color: #111827;
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
    letter-spacing: -0.02em;
}

#about h2:first-of-type::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 80px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 3px;
}

.slider-container {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.slider-container::before,
.slider-container::after {
    content: "";
    position: absolute;
    top: 0;
    width: 100px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.slider-container::before {
    left: 0;
    background: linear-gradient(to right, white, transparent);
}

.slider-container::after {
    right: 0;
    background: linear-gradient(to left, white, transparent);
}

.slider-track {
    display: flex;
    width: calc(250px * 12);
    /* 6 slides * 2 sets * width */
    animation: scroll 30s linear infinite;
}

.slide {
    width: 250px;
    height: 300px;
    padding: 1rem;
    position: relative;
    flex-shrink: 0;
    transition: transform 0.3s;
}

.slide:hover {
    transform: scale(1.05);
    z-index: 10;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.slide-label {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.9);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    color: var(--text-color);
}

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

    100% {
        transform: translateX(calc(-250px * 6));
        /* Scroll half the track width */
    }
}



.blog-image {
    height: 200px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.blog-card:hover .blog-image img {
    transform: scale(1.05);
}

.blog-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-tag {
    font-size: 0.75rem;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.blog-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    line-height: 1.4;
    color: var(--text-color);
}

.blog-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex: 1;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    transition: gap 0.2s;
}

.read-more:hover {
    gap: 0.25rem;
}