/* ========================================
   SuperCutout.com — Global Styles v2
   Teal + Coral rebrand · Split Hero · CTA hierarchy
   ======================================== */

/* ========================================
   CSS Variables — Teal + Coral Palette
   ======================================== */
:root {
    /* === Primary — Electric Teal === */
    --primary: #0D9488;
    --primary-dark: #0F766E;
    --primary-light: #14B8A6;
    --primary-bg: rgba(13, 148, 136, 0.06);

    /* === Accent — Warm Coral === */
    --accent: #F97316;
    --accent-dark: #EA580C;
    --accent-light: #FB923C;

    /* === Gradients === */
    --gradient-brand: linear-gradient(135deg, #0D9488, #06B6D4);
    --gradient-cta: linear-gradient(135deg, #F97316, #FB923C);
    --gradient-cta-hover: linear-gradient(135deg, #EA580C, #F97316);

    /* === Semantic === */
    --success: #22C55E;
    --warning: #F59E0B;
    --danger: #EF4444;

    /* === Neutral — Warm tinted to match Teal === */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F7FAF9;
    --bg-tertiary: #EFF5F3;
    --bg-dark: #0C1B19;

    --text-primary: #0F1B19;
    --text-secondary: #4A6360;
    --text-tertiary: #8BA39F;
    --text-inverse: #FFFFFF;

    --border: #D4E4E1;
    --border-light: #E8F0EE;

    /* === Shadows === */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

    /* === Radii === */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* === Typography === */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul { list-style: none; }

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

.hidden { display: none !important; }

/* Gradient Text — Teal brand gradient */
.gradient-text {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Button System — 3-tier CTA hierarchy
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition);
    white-space: nowrap;
}

/* Tier 1: Primary CTA — Coral gradient, highest conversion */
.btn-cta {
    background: var(--gradient-cta);
    color: white;
    font-weight: 700;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-cta:hover {
    background: var(--gradient-cta-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(249, 115, 22, 0.4);
}

.btn-cta::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { left: -100%; }
    50% { left: 100%; }
}

/* Tier 2: Primary — Teal brand gradient */
.btn-primary {
    background: var(--gradient-brand);
    color: white;
    box-shadow: 0 2px 8px rgba(13, 148, 136, 0.3);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(13, 148, 136, 0.4);
}

/* Tier 3: Outline — bordered, low priority */
.btn-outline {
    border: 2px solid var(--border);
    color: var(--text-primary);
    background: white;
}

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

/* Ghost — text-only link style */
.btn-ghost {
    color: var(--text-secondary);
    padding: 0.5rem 0.75rem;
}

.btn-ghost:hover {
    color: var(--primary);
}

/* Sizes */
.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.0625rem;
    border-radius: var(--radius-full);
}

.btn-sm { padding: 0.5rem 1rem; font-size: 0.8125rem; }
.btn-block { width: 100%; }

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    background: transparent;
}

.navbar.scrolled, .navbar-solid {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-icon { flex-shrink: 0; }

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition);
    position: relative;
}

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
}

/* Nav CTA — uses accent coral for attention */
.nav-cta {
    padding: 0.625rem 1.25rem;
    background: var(--gradient-cta);
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition);
    box-shadow: 0 2px 8px rgba(249, 115, 22, 0.25);
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.35);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ========================================
   Hero Section — Split Layout
   ======================================== */
.hero {
    position: relative;
    padding: 8rem 0 5rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(13, 148, 136, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.06) 0%, transparent 40%),
        radial-gradient(circle at 50% 80%, rgba(13, 148, 136, 0.04) 0%, transparent 50%);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(13, 148, 136, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(13, 148, 136, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(circle at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(circle at center, black 30%, transparent 70%);
}

/* Split layout: left text, right demo */
.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-left {
    text-align: left;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(13, 148, 136, 0.08);
    color: var(--primary);
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 1.5rem;
    border: 1px solid rgba(13, 148, 136, 0.15);
}

.hero h1 {
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 1.25rem;
}

.hero-subtitle {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    max-width: 480px;
    margin-bottom: 2rem;
    line-height: 1.7;
}

/* Hero Upload — Primary CTA style */
.hero-upload {
    margin-bottom: 1.5rem;
}

.upload-zone {
    background: white;
    border: 2px dashed var(--border);
    border-radius: var(--radius-xl);
    padding: 2.5rem 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    text-align: center;
}

.upload-zone:hover, .upload-zone.drag-over {
    border-color: var(--primary);
    background: var(--primary-bg);
    box-shadow: 0 0 0 6px rgba(13, 148, 136, 0.06);
}

.upload-zone.drag-over {
    border-style: solid;
    box-shadow:
        0 0 0 8px rgba(13, 148, 136, 0.08),
        0 0 40px rgba(13, 148, 136, 0.06);
    transform: scale(1.01);
}

.upload-icon {
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.upload-text {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.upload-browse {
    color: var(--primary);
    font-weight: 600;
    cursor: pointer;
}

.upload-hint {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

/* Hero CTA Button Group — alternative to upload zone */
.hero-cta-group {
    margin-bottom: 1.5rem;
}

.hero-cta-group .btn-cta {
    padding: 1rem 2.5rem;
    font-size: 1.0625rem;
}

.hero-cta-group .upload-hint {
    display: block;
    margin-top: 0.75rem;
}

/* Hero Right — Demo area */
.hero-right {
    position: relative;
}

.hero-demo {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    background: white;
    aspect-ratio: 4/3;
}

.hero-demo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.demo-badge {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.03em;
}

.demo-badge-before {
    background: rgba(0, 0, 0, 0.6);
    color: white;
}

.demo-badge-after {
    background: rgba(13, 148, 136, 0.85);
    color: white;
}

/* Samples */
.hero-samples {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.samples-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.sample-thumbs {
    display: flex;
    gap: 0.5rem;
}

.sample-thumb {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all var(--transition);
}

.sample-thumb:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Stats */
.hero-stats {
    display: flex;
    gap: 2.5rem;
}

.stat { text-align: center; }

.stat strong {
    display: block;
    font-size: 1.375rem;
    font-weight: 800;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat span {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

/* Social Proof — below hero stats */
.hero-proof {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-top: 1.5rem;
}

.hero-proof .stars {
    color: #F59E0B;
    letter-spacing: 1px;
}

.hero-proof .divider {
    opacity: 0.3;
}

/* ========================================
   Trust Bar
   ======================================== */
.trust-bar {
    padding: 2.5rem 0;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-primary);
}

.trust-bar .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.trust-label {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.trust-logos {
    display: flex;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.trust-logos img {
    height: 24px;
    opacity: 0.35;
    filter: grayscale(100%);
    transition: all 0.3s;
}

.trust-logos img:hover {
    opacity: 0.6;
    filter: grayscale(0%);
}

/* ========================================
   Section Headers
   ======================================== */
.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-header h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.section-header p {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* ========================================
   Showcase (Before/After)
   ======================================== */
.showcase {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.showcase-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
}

.showcase-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(13, 148, 136, 0.15);
}

.comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.comp-placeholder {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 3rem;
}

.comp-placeholder small {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.checkerboard {
    background-image:
        linear-gradient(45deg, #f0f0f0 25%, transparent 25%),
        linear-gradient(-45deg, #f0f0f0 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #f0f0f0 75%),
        linear-gradient(-45deg, transparent 75%, #f0f0f0 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

.showcase-card h3 {
    padding: 1rem 1.25rem 0.25rem;
    font-size: 1.0625rem;
}

.showcase-card p {
    padding: 0 1.25rem 1.25rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ========================================
   How It Works
   ======================================== */
.how-it-works {
    padding: 6rem 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    position: relative;
}

.steps-grid::before {
    content: '';
    position: absolute;
    top: 3rem;
    left: 20%;
    right: 20%;
    height: 2px;
    background: var(--gradient-brand);
    opacity: 0.2;
    z-index: 0;
}

.step-card {
    text-align: center;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--gradient-brand);
    color: white;
    font-size: 0.875rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.step-icon {
    color: var(--primary);
    margin-bottom: 1.25rem;
}

.step-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.step-card p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   Features
   ======================================== */
.features {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(13, 148, 136, 0.2);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: 0.625rem;
}

.feature-card p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   Use Cases
   ======================================== */
.use-cases {
    padding: 6rem 0;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.case-card {
    text-align: center;
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-4px);
}

.case-visual {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1rem;
    box-shadow: var(--shadow-md);
}

.case-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.375rem;
}

.case-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ========================================
   FAQ
   ======================================== */
.faq {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.faq-list {
    max-width: 720px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: var(--radius-md);
    margin-bottom: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    transition: color var(--transition);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-arrow {
    flex-shrink: 0;
    transition: transform 0.3s ease;
    color: var(--text-tertiary);
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 1.5rem 1.25rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ========================================
   CTA Section
   ======================================== */
.cta {
    padding: 6rem 0;
}

.cta-content {
    text-align: center;
    padding: 4rem;
    background: var(--gradient-brand);
    border-radius: var(--radius-xl);
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-content::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 30%, rgba(255, 255, 255, 0.05) 0%, transparent 40%);
}

.cta-content h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    position: relative;
}

.cta-content p {
    font-size: 1.0625rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    position: relative;
}

/* CTA button inside the teal banner = white background */
.cta-content .btn {
    background: white;
    color: var(--primary);
    font-weight: 700;
    position: relative;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.cta-content .btn:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--bg-dark);
    color: var(--text-inverse);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    margin-top: 1rem;
    line-height: 1.7;
}

.footer-brand .logo {
    color: white;
}

.footer-links h4 {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 1rem;
}

.footer-links li {
    margin-bottom: 0.625rem;
}

.footer-links a {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition);
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.4);
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeScaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.hero-left { animation: fadeInUp 0.6s ease; }
.hero-right { animation: fadeInUp 0.6s ease 0.15s both; }

/* ========================================
   Responsive — Large screens
   ======================================== */
@media (min-width: 1440px) {
    .container { max-width: 1320px; }
    .hero h1 { font-size: 4rem; }
    .hero-content { gap: 5rem; }
}

/* ========================================
   Responsive — Tablet landscape
   ======================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2.5rem;
    }

    .hero-left {
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-samples {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-proof {
        justify-content: center;
    }

    .hero-right {
        max-width: 500px;
        margin: 0 auto;
    }

    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .cases-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ========================================
   Responsive — Tablet portrait / Mobile landscape
   ======================================== */
@media (max-width: 768px) {
    .nav-links, .nav-cta { display: none; }
    .mobile-menu-btn { display: flex; }

    .hero { padding: 7rem 0 3rem; min-height: auto; }
    .hero h1 { font-size: 2.25rem; }
    .hero-subtitle { font-size: 1rem; }

    .hero-demo {
        display: none;
    }

    .showcase-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .steps-grid { grid-template-columns: 1fr; max-width: 360px; margin: 0 auto; }
    .steps-grid::before { display: none; }
    .features-grid { grid-template-columns: 1fr; }
    .cases-grid { grid-template-columns: repeat(2, 1fr); }

    .hero-stats { gap: 1.5rem; }
    .stat strong { font-size: 1.25rem; }

    .cta-content { padding: 2.5rem 1.5rem; }
    .cta-content h2 { font-size: 1.5rem; }

    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }

    .trust-bar .container { gap: 1.5rem; }
    .trust-logos { gap: 1.25rem; }

    /* Mobile menu */
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        padding: 1.5rem;
        gap: 1rem;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--border);
    }

    .nav-links.active .nav-cta-mobile {
        display: block;
        text-align: center;
    }
}

/* ========================================
   Responsive — Mobile portrait
   ======================================== */
@media (max-width: 480px) {
    .hero h1 { font-size: 1.875rem; }
    .upload-zone { padding: 2rem 1.5rem; }
    .hero-samples { flex-direction: column; gap: 0.75rem; }
    .hero-stats { flex-direction: column; gap: 1rem; }
    .hero-proof { flex-direction: column; gap: 0.25rem; }
    .cases-grid { grid-template-columns: 1fr; }
}

/* ========================================
   Utility: Smooth scroll-linked animations
   (for intersection observer in JS)
   ======================================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}


/* ========================================
   Nav Auth Elements
   ======================================== */
.nav-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-login-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.4rem 0.75rem;
    border-radius: 8px;
    transition: all 0.2s;
}
.nav-login-link:hover {
    color: var(--primary);
    background: var(--primary-bg);
}

.nav-user-btn {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.nav-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-bg);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    border: 2px solid var(--border);
    transition: all 0.2s;
}
.nav-user-btn:hover .nav-avatar {
    border-color: var(--primary);
    background: rgba(13, 148, 136, 0.12);
}

.nav-vip-badge {
    background: linear-gradient(135deg, #F97316, #FB923C);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
}

/* ========================================
   Language Switcher
   ======================================== */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-right: 0.5rem;
}

.lang-btn {
    color: var(--text-tertiary);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.lang-btn:hover {
    color: var(--primary);
    background: var(--primary-bg);
}

.lang-btn.lang-active {
    color: var(--primary);
    background: var(--primary-bg);
    font-weight: 600;
}

.lang-divider {
    color: var(--text-tertiary);
    font-size: 0.75rem;
    opacity: 0.5;
}

/* ========================================
   Breadcrumb Navigation
   ======================================== */
.breadcrumb {
    padding: 0.75rem 0;
    margin-top: 5rem;
    font-size: 0.8125rem;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.25rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.breadcrumb-list a {
    color: var(--text-tertiary);
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumb-list a:hover {
    color: var(--primary);
}

.breadcrumb-sep {
    color: var(--text-tertiary);
    opacity: 0.5;
    font-size: 0.75rem;
}

.breadcrumb-current {
    color: var(--text-secondary);
    font-weight: 500;
}

@media (max-width: 768px) {
    .breadcrumb { margin-top: 4rem; }
    .nav-right { gap: 0.5rem; }
    .lang-switcher { margin-right: 0.25rem; }
    .lang-btn { font-size: 0.75rem; padding: 0.15rem 0.3rem; }
    .nav-login-link { font-size: 0.8rem; padding: 0.3rem 0.5rem; }
}