/* TrustGate - Black & White UI/UX - Professional Monochrome Design */

/* ============================================================================
   Global Transitions & Animations
   ============================================================================ */
* {
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, opacity 0.2s ease, transform 0.2s ease;
}

button, .btn, a.btn-upgrade, [role="button"] {
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, opacity 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
}

button:hover:not(:disabled), .btn:hover:not(:disabled) {
    transform: translateY(-1px);
}

button:active:not(:disabled), .btn:active:not(:disabled) {
    transform: translateY(0);
}

button:disabled, .btn:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

/* ============================================================================
   CSS Variables - Black & White Color System
   ============================================================================ */

:root {
    /* Black & White Colors */
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #141414;
    --bg-card: #1a1a1a;
    --bg-hover: #242424;
    --bg-elevated: #2a2a2a;
    
    /* Text Colors - High Contrast */
    --text-primary: #ffffff;
    --text-secondary: #e0e0e0;
    --text-tertiary: #b0b0b0;
    --text-muted: #808080;
    
    /* Accent Colors - Grayscale Only */
    --primary-500: #ffffff;
    --primary-600: #e0e0e0;
    --primary-700: #b0b0b0;
    --primary-400: #f5f5f5;
    --primary-300: #d0d0d0;
    --primary-glow: rgba(255, 255, 255, 0.2);
    
    /* Semantic Colors - Grayscale */
    --success-500: #ffffff;
    --success-600: #e0e0e0;
    --success-glow: rgba(255, 255, 255, 0.15);
    --warning-500: #d0d0d0;
    --warning-600: #b0b0b0;
    --warning-glow: rgba(255, 255, 255, 0.1);
    --danger-500: #808080;
    --danger-600: #606060;
    --danger-glow: rgba(255, 255, 255, 0.1);
    
    /* Borders */
    --border-light: #333333;
    --border-medium: #404040;
    --border-dark: #505050;
    
    /* Shadows - Monochrome */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.5);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.6), 0 2px 4px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.7), 0 4px 6px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.8), 0 10px 10px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.9), 0 10px 20px rgba(0, 0, 0, 0.7);
    --shadow-2xl: 0 35px 60px rgba(0, 0, 0, 0.95);
    --shadow-glow: 0 0 30px rgba(255, 255, 255, 0.1);
    --shadow-glow-success: 0 0 30px rgba(255, 255, 255, 0.1);
    --shadow-glow-warning: 0 0 30px rgba(255, 255, 255, 0.08);
    --shadow-glow-danger: 0 0 30px rgba(255, 255, 255, 0.05);
    
    /* Gradients - Grayscale Only */
    --gradient-primary: linear-gradient(135deg, #ffffff 0%, #e0e0e0 50%, #b0b0b0 100%);
    --gradient-primary-alt: linear-gradient(135deg, #ffffff 0%, #d0d0d0 50%, #a0a0a0 100%);
    --gradient-success: linear-gradient(135deg, #ffffff 0%, #e0e0e0 50%, #b0b0b0 100%);
    --gradient-warning: linear-gradient(135deg, #d0d0d0 0%, #b0b0b0 50%, #808080 100%);
    --gradient-danger: linear-gradient(135deg, #808080 0%, #606060 50%, #404040 100%);
    --gradient-card: linear-gradient(135deg, #1a1a1a 0%, #141414 50%, #0a0a0a 100%);
    --gradient-bg: radial-gradient(ellipse at top, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
                   radial-gradient(ellipse at bottom right, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Tech / monospace */
    --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
}

/* ============================================================================
   Base Styles
   ============================================================================ */

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

html {
    scroll-behavior: smooth;
    color-scheme: dark;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: var(--bg-primary);
    background-image: var(--gradient-bg);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
    z-index: 0;
}
body > * {
    position: relative;
    z-index: 1;
}

/* Animated background particles effect - grayscale */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.02) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
    animation: backgroundPulse 20s ease-in-out infinite;
}

@keyframes backgroundPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

/* ============================================================================
   Typography
   ============================================================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h1 { 
    font-size: 3rem; 
    color: var(--text-primary);
}
h2 { font-size: 2.25rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================================================
   Layout
   ============================================================================ */

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    position: relative;
    z-index: 1;
}

/* ============================================================================
   Header
   ============================================================================ */

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(18, 18, 18, 0.92);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--border-light);
    padding: var(--spacing-lg) 0;
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04), var(--shadow-md);
    transition: all var(--transition-base);
    overflow: hidden;
    min-height: 56px;
}

.header:hover {
    background: rgba(26, 26, 26, 0.95);
    box-shadow: var(--shadow-xl);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    min-height: 56px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
    min-width: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-wrap: nowrap;
    flex: 1;
    justify-content: center;
    min-width: 0;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
    white-space: nowrap;
}

.btn-upgrade {
    background: var(--text-primary);
    color: var(--bg-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.9375rem;
    text-decoration: none;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.btn-upgrade:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

/* Keep logo small in header - never let it grow or cover the page */
.header .logo img.logo-img,
.logo img.logo-img {
    height: 40px !important;
    max-height: 40px !important;
    width: auto !important;
    max-width: 140px !important;
    min-width: 0;
    object-fit: contain;
    display: block;
    flex-shrink: 0;
}

a.logo.nav-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: inherit;
}

.logo .logo-name {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-primary);
    white-space: nowrap;
    line-height: 1.2;
}

.logo .logo-fallback {
    font-size: 1.75rem;
    font-weight: 800;
    margin: 0;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 800;
    margin: 0;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

.tagline {
    font-size: 0.6875rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 2px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    line-height: 1.2;
}

.company {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    display: none; /* Hide on desktop for beta - show on larger screens if needed */
}

/* ============================================================================
   App footer - professional branding
   ============================================================================ */
.app-footer {
    text-align: center;
    padding: 2rem var(--spacing-xl);
    margin-top: 3rem;
    border-top: 1px solid var(--border-light);
    background: var(--bg-secondary);
    color: var(--text-muted);
    font-size: 0.8125rem;
    letter-spacing: 0.03em;
    line-height: 1.6;
}
.app-footer p {
    margin: 0;
    color: inherit;
}
.app-footer .footer-brand {
    font-weight: 600;
    color: var(--text-tertiary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}
.app-footer .footer-legal {
    margin-top: 0.75rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0.9;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
    white-space: nowrap;
    font-size: 0.9rem;
}

.nav-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: -1;
}

.nav-link:hover {
    color: var(--text-primary);
    transform: translateY(-2px);
}

.nav-link:hover::before {
    opacity: 1;
}

/* API Docs link – tech accent */
a.nav-link[href*="docs"] {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    letter-spacing: 0.02em;
}

/* Desktop: ensure nav stays in one line */
@media (min-width: 769px) {
    .header-nav {
        flex-wrap: nowrap;
        gap: 0.25rem;
    }
    .nav-link {
        font-size: 0.875rem;
        padding: 0.5rem 0.65rem;
    }
    .header-content {
        gap: var(--spacing-md);
    }
    .logo .tagline {
        font-size: 0.65rem;
    }
}

/* Medium desktop: hide tagline to save space */
@media (min-width: 769px) and (max-width: 1100px) {
    .logo .tagline {
        display: none;
    }
}

/* Hero – tech typography */
.hero-section h1 {
    letter-spacing: -0.03em;
}
.hero-section p {
    font-family: var(--font-mono);
    font-size: 1rem;
    letter-spacing: 0.03em;
    opacity: 0.95;
}
.hero-section h1 + p,
.hero-section h1 + p + p {
    font-family: inherit;
    font-size: 1.5rem;
    letter-spacing: -0.01em;
}
.hero-section h1 + p + p {
    font-size: 1.125rem;
}

/* ============================================================================
   Cards
   ============================================================================ */

.card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.3);
    opacity: 0;
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-2xl), var(--shadow-glow);
    border-color: var(--border-medium);
}

.card:hover::before {
    transform: scaleX(1);
    opacity: 1;
}

.upload-card {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-3xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    border-left: 3px solid rgba(255, 255, 255, 0.35);
    position: relative;
    overflow: hidden;
}

.upload-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: rgba(255, 255, 255, 0.4);
    opacity: 0.7;
}

.upload-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.03), transparent);
    pointer-events: none;
}

/* ============================================================================
   File Upload
   ============================================================================ */

.file-upload-area {
    border: 2px dashed var(--border-medium);
    border-radius: var(--radius-xl);
    padding: var(--spacing-3xl);
    text-align: center;
    background: var(--bg-secondary);
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.file-upload-area::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.05), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.file-upload-area:hover {
    border-color: var(--border-dark);
    background: var(--bg-tertiary);
    transform: scale(1.01);
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.05);
}

.file-upload-area:hover::before {
    opacity: 1;
}

.file-upload-area.dragover {
    border-color: var(--border-dark);
    background: var(--bg-tertiary);
    transform: scale(1.02);
    box-shadow: 0 0 40px rgba(255, 255, 255, 0.08), var(--shadow-glow);
    border-style: solid;
}

.upload-icon {
    font-size: 4.5rem;
    margin-bottom: var(--spacing-lg);
    display: block;
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.1));
}

.choose-file-btn {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.75rem 1.75rem;
    background: #10b981;
    color: #fff;
    border: none;
    border-radius: 0.5rem;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
    text-decoration: none;
}
.choose-file-btn:hover {
    background: #059669;
    transform: translateY(-1px);
}
/* File input overlays the drop zone so any click opens the file picker */
input.file-input-visible {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 2;
    border: 0;
    padding: 0;
    margin: 0;
    font-size: 0;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(5deg); }
}

.upload-text {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.01em;
}

.upload-text-small {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.file-info {
    color: var(--text-secondary);
    font-weight: 600;
    margin-top: 1rem;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
    font-size: 1rem;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    letter-spacing: 0.01em;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-primary);
    box-shadow: var(--shadow-md), var(--shadow-glow);
    font-weight: 700;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(255, 255, 255, 0.15);
    background: var(--text-secondary);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--border-medium);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--text-primary);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.125rem;
    width: 100%;
    font-weight: 700;
}

/* ============================================================================
   Forms
   ============================================================================ */

.form-group {
    margin-bottom: var(--spacing-xl);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    font-family: inherit;
    font-size: 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--border-dark);
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.1), var(--shadow-glow);
    transform: translateY(-2px);
    background: var(--bg-tertiary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

/* ============================================================================
   Score Display
   ============================================================================ */

.score-section {
    text-align: center;
    margin: var(--spacing-3xl) 0;
}

.score-circle {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    position: relative;
    background: conic-gradient(
        from 0deg,
        var(--text-primary) 0%,
        var(--text-primary) var(--score-percent, 0%),
        var(--bg-tertiary) var(--score-percent, 0%),
        var(--bg-tertiary) 100%
    );
    padding: 10px;
    animation: scoreAppear 1s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    box-shadow: var(--shadow-xl), var(--shadow-glow-success);
}

@keyframes scoreAppear {
    from {
        transform: scale(0.5) rotate(-180deg);
        opacity: 0;
    }
    to {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
}

.score-circle::before {
    content: '';
    position: absolute;
    inset: 10px;
    border-radius: 50%;
    background: var(--bg-card);
}

.score-value {
    font-size: 4rem;
    font-weight: 800;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
    line-height: 1;
    text-shadow: 0 0 30px rgba(255, 255, 255, 0.3);
}

.score-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: var(--spacing-md);
}

.score-description {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.score-circle.high {
    background: conic-gradient(
        from 0deg,
        var(--text-primary) 0%,
        var(--text-primary) var(--score-percent, 0%),
        var(--bg-tertiary) var(--score-percent, 0%),
        var(--bg-tertiary) 100%
    );
    box-shadow: var(--shadow-xl), var(--shadow-glow-success);
}

.score-circle.medium {
    background: conic-gradient(
        from 0deg,
        var(--text-secondary) 0%,
        var(--text-secondary) var(--score-percent, 0%),
        var(--bg-tertiary) var(--score-percent, 0%),
        var(--bg-tertiary) 100%
    );
    box-shadow: var(--shadow-xl), var(--shadow-glow-warning);
}

.score-circle.low {
    background: conic-gradient(
        from 0deg,
        var(--text-muted) 0%,
        var(--text-muted) var(--score-percent, 0%),
        var(--bg-tertiary) var(--score-percent, 0%),
        var(--bg-tertiary) 100%
    );
    box-shadow: var(--shadow-xl), var(--shadow-glow-danger);
}

/* ============================================================================
   TrustGate Verdict
   ============================================================================ */

#verdict {
    position: relative;
    z-index: 10;
    margin-top: 0;
    margin-bottom: 3rem;
    scroll-margin-top: 100px; /* Account for sticky header */
}

.tg-verdict {
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    margin: var(--spacing-2xl) 0;
    text-align: center;
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
    animation: verdictAppear 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    box-shadow: var(--shadow-2xl);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.8);
    letter-spacing: 0.02em;
    background: var(--bg-card);
    border: 2px solid var(--border-light);
}

@keyframes verdictAppear {
    from {
        transform: translateY(30px) scale(0.9);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.tg-verdict::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent);
}

.tg-verdict.approved {
    background: var(--bg-card);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-2xl), var(--shadow-glow-success);
}

.tg-verdict.conditional {
    background: var(--bg-card);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-2xl), var(--shadow-glow-warning);
}

.tg-verdict.blocked {
    background: var(--bg-card);
    border-color: var(--border-dark);
    box-shadow: var(--shadow-2xl), var(--shadow-glow-danger);
}

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

.section {
    margin: var(--spacing-3xl) 0;
}

.section h2 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.section-content {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.section-content:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-lg);
}

/* ============================================================================
   Decision Checks
   ============================================================================ */

.check-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-lg);
    margin: var(--spacing-md) 0;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-light);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.check-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    background: var(--border-light);
    transition: all var(--transition-base);
}

.check-item:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-medium);
    background: var(--bg-hover);
}

.check-item.pass::before {
    background: var(--text-primary);
    width: 5px;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

.check-item.fail::before {
    background: var(--text-muted);
    width: 5px;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
}

.check-status {
    font-size: 1.375rem;
    font-weight: 700;
    margin-right: var(--spacing-lg);
    min-width: 80px;
    text-align: center;
}

.check-status.pass {
    color: var(--text-primary);
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

.check-status.fail {
    color: var(--text-muted);
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
}

/* ============================================================================
   Loading States
   ============================================================================ */

.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl);
    gap: var(--spacing-lg);
}

.spinner {
    width: 60px;
    height: 60px;
    border: 5px solid var(--border-light);
    border-top-color: var(--text-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.1);
}

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

/* ============================================================================
   Toast Notifications
   ============================================================================ */

.toast {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    background: var(--bg-card);
    color: var(--text-primary);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    z-index: 10000;
    animation: toastSlideIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    max-width: 400px;
    backdrop-filter: blur(10px);
}

@keyframes toastSlideIn {
    from {
        transform: translateX(120%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.success {
    border-left: 5px solid var(--text-primary);
    box-shadow: var(--shadow-xl), var(--shadow-glow-success);
}

.toast.error {
    border-left: 5px solid var(--text-muted);
    box-shadow: var(--shadow-xl), var(--shadow-glow-danger);
}

/* ============================================================================
   Decision Context Form
   ============================================================================ */

.decision-context-form {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius-xl);
    margin: 2rem 0;
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
}

.decision-context-form:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-md);
}

.decision-context-form h3 {
    color: var(--text-primary);
}

/* ============================================================================
   Results Card
   ============================================================================ */

.results-card {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: 3rem;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    border-left: 3px solid rgba(255, 255, 255, 0.35);
    margin: 2rem 0;
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}

.results-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: rgba(255, 255, 255, 0.4);
    opacity: 0.7;
}

/* ============================================================================
   Tabs
   ============================================================================ */

.tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-light);
    position: relative;
}

.tabs::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.4);
    width: 0;
    transition: width var(--transition-base);
}

.tab-btn {
    padding: 1rem 2rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: rgba(255, 255, 255, 0.4);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.tab-btn.active {
    border-bottom-color: var(--text-primary);
    color: var(--text-primary);
}

.tab-btn.active::after {
    transform: scaleX(1);
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.tab-content {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================================
   Risk Items
   ============================================================================ */

.risk-item {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    margin: 0.875rem 0;
    color: var(--text-primary);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.risk-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--border-light);
    transition: all var(--transition-base);
}

.risk-item:hover {
    background: var(--bg-hover);
    border-color: var(--border-medium);
    transform: translateX(6px);
    box-shadow: var(--shadow-md);
}

.risk-item.high::before {
    background: var(--text-muted);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
}

.risk-item.medium::before {
    background: var(--text-tertiary);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.08);
}

.risk-item.low::before {
    background: var(--text-secondary);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
}

.risk-item strong {
    color: var(--text-primary);
    font-weight: 700;
}

.risk-item p {
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

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

/* ---------- Mobile & tablet: base ---------- */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .upload-card {
        padding: var(--spacing-xl);
    }
    
    .score-circle {
        width: 180px;
        height: 180px;
    }
    
    .score-value {
        font-size: 3rem;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
}

/* ---------- Mobile: touch targets, safe areas, typography ---------- */
html {
    -webkit-text-size-adjust: 100%;
}
@media (max-width: 900px) {
    body {
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
        padding-bottom: env(safe-area-inset-bottom);
    }
    /* Touch-friendly minimum sizes (44px) */
    a.nav-link,
    .btn-upgrade,
    button:not(.icon-only),
    .choose-file-btn,
    input[type="submit"],
    input[type="button"],
    [role="button"] {
        min-height: 44px;
        min-width: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0.75rem 1rem;
    }
    .nav-link {
        padding: 0.75rem 1rem;
    }
}

/* ---------- Mobile: header & hamburger nav ---------- */
.menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    flex-shrink: 0;
    -webkit-tap-highlight-color: transparent;
}
.menu-toggle:hover {
    background: rgba(255, 255, 255, 0.12);
}
.menu-toggle:focus-visible {
    outline: 2px solid var(--text-primary);
    outline-offset: 2px;
}
.menu-toggle svg {
    width: 24px;
    height: 24px;
}
.menu-toggle .close-icon {
    display: none;
}
.header.nav-open .menu-toggle .menu-icon {
    display: none;
}
.header.nav-open .menu-toggle .close-icon {
    display: block;
}

@media (max-width: 768px) {
    .nav-backdrop {
        display: none;
        position: fixed;
        inset: 0;
        z-index: 1000;
        background: transparent;
        -webkit-tap-highlight-color: transparent;
    }
    .header.nav-open .nav-backdrop {
        display: block;
    }
    .menu-toggle {
        display: inline-flex;
    }
    .header-content {
        flex-wrap: wrap;
        padding: var(--spacing-sm) var(--spacing-md);
        gap: var(--spacing-sm);
    }
    .header-nav {
        display: none;
        order: 99;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        flex-wrap: wrap;
        gap: 0;
        padding: var(--spacing-md) 0;
        border-top: 1px solid var(--border-light);
        margin-top: var(--spacing-sm);
    }
    .header-nav .nav-link {
        padding: 1rem var(--spacing-md);
        border-radius: var(--radius-md);
        min-height: 48px;
        justify-content: flex-start;
    }
    .header.nav-open .header-nav {
        display: flex;
        animation: slideDown 0.25s ease-out;
    }
    @keyframes slideDown {
        from { opacity: 0; transform: translateY(-8px); }
        to { opacity: 1; transform: translateY(0); }
    }
    .header-actions {
        margin-left: auto;
    }
    .header-actions .company {
        display: none;
    }
    .logo .tagline {
        display: none;
    }
    .hero-section h1 {
        font-size: clamp(1.75rem, 8vw, 2.5rem) !important;
        line-height: 1.25;
    }
    .hero-section p {
        font-size: clamp(0.9375rem, 2.5vw, 1.125rem) !important;
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    .logo .logo-name {
        font-size: 1.125rem;
    }
    .hero-section {
        padding: 3rem 1rem !important;
    }
    .features,
    .pricing-preview,
    .landing-body .hero {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
}

/* Mobile: scrollable tables and result blocks */
@media (max-width: 768px) {
    .results-card table,
    .upload-card table,
    table.results-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .file-upload-area {
        min-height: 160px;
        padding: 1.5rem 1rem;
    }
    .upload-section .upload-card h2 {
        font-size: 1.5rem !important;
    }
}

/* ============================================================================
   Mobile: deeper improvements
   ============================================================================ */

/* Prevent iOS zoom on input focus (16px minimum) */
@media (max-width: 768px) {
    input, select, textarea {
        font-size: 16px !important;
    }
    input[type="number"],
    input[type="email"],
    input[type="text"],
    input[type="password"] {
        font-size: 16px !important;
    }
}

/* Mobile nav: backdrop overlay when open */
@media (max-width: 768px) {
    .header {
        position: relative;
    }
    .header.nav-open::before {
        content: '';
        position: fixed;
        inset: 0;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.6);
        z-index: 999;
        animation: fadeIn 0.2s ease-out;
    }
    .header.nav-open .header-content {
        position: relative;
        z-index: 1001;
        background: rgba(26, 26, 26, 0.98);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    }
    .header-nav {
        max-height: 70vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Hero CTAs: full-width on small screens for easier tap */
@media (max-width: 480px) {
    .hero-section button,
    .hero-section .hero-buttons a,
    .hero-section .hero-buttons button {
        width: 100%;
        max-width: 100%;
        justify-content: center;
    }
    .hero-section > div > div:last-child {
        gap: 1rem !important;
        padding: 1.5rem 1rem !important;
    }
    .hero-section > div > div:last-child > div {
        min-width: 100%;
    }
}

/* Very small phones (360px and below) */
@media (max-width: 360px) {
    .header-content {
        padding: 0.5rem 0.75rem;
    }
    .container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
    .upload-card,
    .results-card {
        padding: 1rem !important;
    }
    .score-circle {
        width: 140px;
        height: 140px;
    }
    .score-value {
        font-size: 2.25rem;
    }
}

/* Touch: disable hover effects that can stick on tap */
@media (hover: none) and (pointer: coarse) {
    .nav-link:hover {
        transform: none;
    }
    .menu-toggle:hover {
        background: rgba(255, 255, 255, 0.08);
    }
}

/* Mobile: ensure sticky header has safe-area top */
@supports (padding: max(0px)) {
    @media (max-width: 768px) {
        .header {
            padding-top: max(var(--spacing-lg), env(safe-area-inset-top));
        }
    }
}

/* ============================================================================
   Scrollbar Styling
   ============================================================================ */

::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 6px;
    border: 2px solid var(--bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}

/* ============================================================================
   Selection
   ============================================================================ */

::selection {
    background: var(--text-primary);
    color: var(--bg-primary);
}

/* ============================================================================
   Ensure All Text is Visible
   ============================================================================ */

ul, ol, li {
    color: var(--text-primary);
}

span, div, p, a {
    color: inherit;
}

.subtitle {
    color: var(--text-secondary);
}

/* ============================================================================
   Premium Animations
   ============================================================================ */

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.shimmer {
    animation: shimmer 2s infinite;
    background: linear-gradient(
        to right,
        var(--bg-card) 0%,
        rgba(255, 255, 255, 0.05) 50%,
        var(--bg-card) 100%
    );
    background-size: 1000px 100%;
}

/* ============================================================================
   Enhanced Visual Effects
   ============================================================================ */

.glow-effect {
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* Smooth transitions for all interactive elements */
a, button, input, select, textarea {
    transition: all var(--transition-fast);
}

/* Focus states */
*:focus-visible {
    outline: 2px solid var(--text-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* ============================================================================
   UI/UX improvements – readability, spacing, accessibility
   ============================================================================ */

/* Header: standard layout – logo | nav | actions */
@media (max-width: 900px) {
    .header-content {
        flex-wrap: wrap;
        gap: var(--spacing-md);
        padding: var(--spacing-md) var(--spacing-lg);
    }
    .header-nav {
        order: 3;
        width: 100%;
        justify-content: flex-start;
        gap: var(--spacing-sm);
    }
    .header-actions {
        margin-left: auto;
    }
}
.nav-link:focus-visible {
    outline: 2px solid var(--text-primary);
    outline-offset: 2px;
}

/* Upload card: clearer hierarchy, comfortable padding */
.upload-section .upload-card {
    padding: var(--spacing-2xl) var(--spacing-xl);
}
@media (min-width: 768px) {
    .upload-section .upload-card {
        padding: var(--spacing-3xl);
    }
}
.file-upload-area {
    min-height: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.choose-file-btn:focus-visible {
    outline: 2px solid var(--text-primary);
    outline-offset: 2px;
}

/* Form groups: consistent spacing and label clarity */
.upload-form .form-group {
    margin-bottom: 1.25rem;
}
.upload-form .form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
}
.upload-form select:focus,
.upload-form input:focus,
.upload-form textarea:focus {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 0;
}

/* Results section: readable width and spacing */
.results-section {
    padding-top: 1rem;
    padding-bottom: 3rem;
}
.results-section .results-card {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}
.results-section .results-card > h2 {
    margin-bottom: 1.5rem;
}

/* Score and verdict – tech readout */
.score-value,
.score-title {
    font-family: var(--font-mono);
    letter-spacing: 0.02em;
}
#verdict div[style*="font-size:2rem"] {
    font-family: var(--font-mono);
    letter-spacing: 0.03em;
}

/* Fix selection: button group and summary */
#fixSelectionSummary {
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}
.results-card button + button {
    margin-left: 0;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Subtle hover feedback on fix checkboxes */
input[name="selectedFix"] {
    cursor: pointer;
}
input[name="selectedFix"]:focus-visible {
    outline: 2px solid var(--text-primary);
    outline-offset: 2px;
}

/* ============================================================================
   PWA / Mobile app — standard app appearance on phones and tablets
   ============================================================================ */

/* Standalone display (when installed as PWA) */
@media (display-mode: standalone) {
    body {
        min-height: 100dvh;
        min-height: 100vh;
    }
}

/* Mobile: safe areas, full height, touch targets */
@media (max-width: 768px) {
    html {
        -webkit-text-size-adjust: 100%;
    }
    body.pwa-body,
    body.landing-body {
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
        padding-bottom: env(safe-area-inset-bottom);
        min-height: 100dvh;
        min-height: 100vh;
    }
    body .header-content {
        padding-left: max(var(--spacing-xl), env(safe-area-inset-left));
        padding-right: max(var(--spacing-xl), env(safe-area-inset-right));
    }
    body .container {
        padding-left: max(var(--spacing-xl), env(safe-area-inset-left));
        padding-right: max(var(--spacing-xl), env(safe-area-inset-right));
    }
    /* Touch-friendly: minimum 44px tap targets, no tap highlight */
    body button,
    body .btn,
    body a.btn-upgrade,
    body .nav-link,
    body .choose-file-btn,
    body [role="button"] {
        min-height: 44px;
        -webkit-tap-highlight-color: transparent;
    }
    /* App-like: reduce overscroll bounce when not desired */
    body {
        overscroll-behavior-y: contain;
    }
}

@media (max-width: 480px) {
    body .header-content,
    body .container {
        padding-left: max(var(--spacing-md), env(safe-area-inset-left));
        padding-right: max(var(--spacing-md), env(safe-area-inset-right));
    }
}

/* ============================================================================
   Mobile app – phone view (results, fixes, toasts, forms)
   ============================================================================ */

@media (max-width: 768px) {
    /* Assessment overview cards: single column on phone */
    #assessmentOverviewSection {
        padding: 1rem !important;
        margin-left: 0;
        margin-right: 0;
    }
    #assessmentOverviewGrid {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }
    #assessmentOverviewGrid > div {
        min-height: 44px;
    }
    /* Results section: full width, no overflow */
    #resultsSection {
        width: 100%;
        max-width: 100%;
        padding-left: max(var(--spacing-md), env(safe-area-inset-left));
        padding-right: max(var(--spacing-md), env(safe-area-inset-right));
        box-sizing: border-box;
    }
    #resultsSection .results-card {
        width: 100%;
        max-width: 100%;
        padding: 1.25rem;
        box-sizing: border-box;
    }
    /* Verdict and score block: stack on small screens */
    #resultsSection .score-description,
    #resultsSection [style*="max-width: 700px"],
    #resultsSection [style*="max-width: 600px"] {
        max-width: 100% !important;
        padding-left: 0;
        padding-right: 0;
    }
    /* Assessment tabs: horizontal scroll if many, or wrap */
    #assessmentTabsSection {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 0.5rem;
        margin-left: calc(-1 * max(var(--spacing-md), env(safe-area-inset-left)));
        margin-right: calc(-1 * max(var(--spacing-md), env(safe-area-inset-right)));
        padding-left: max(var(--spacing-md), env(safe-area-inset-left));
        padding-right: max(var(--spacing-md), env(safe-area-inset-right));
    }
    #assessmentTabsSection .tabs-inner,
    #assessmentTabsSection [role="tablist"] {
        flex-wrap: nowrap;
        min-width: min-content;
        gap: 0.5rem;
    }
    /* Fixes selection: full width, stacked buttons */
    #fixesSelectionSection,
    #fixesSelectionContent,
    #detectedIssuesCard {
        width: 100%;
        max-width: 100%;
        padding: 1rem;
        box-sizing: border-box;
    }
    #fixesSelectionSection .fix-checkbox,
    #fixesSelectionContent .fix-checkbox {
        min-width: 44px;
        min-height: 44px;
    }
    #fixesSelectionSection button,
    #applyFixesBtn {
        width: 100%;
        min-height: 48px;
        justify-content: center;
    }
    #fixSelectionSummary {
        padding: 0.75rem 1rem !important;
    }
    /* Selection buttons row: wrap and full width on smallest */
    #fixesSelectionSection [style*="display: flex"][style*="gap"] {
        flex-wrap: wrap;
    }
    #fixesSelectionSection button[onclick*="selectSafeFixes"],
    #fixesSelectionSection button[onclick*="selectRecommendedFixes"],
    #fixesSelectionSection button[onclick*="selectAllFixes"],
    #fixesSelectionSection button[onclick*="deselectAllFixes"] {
        min-width: 0;
        flex: 1 1 auto;
    }
    /* Toast container: full width, safe area, top on mobile */
    #toastContainer {
        left: max(1rem, env(safe-area-inset-left));
        right: max(1rem, env(safe-area-inset-right));
        max-width: none;
        width: auto;
    }
    /* How it works grid: single column */
    .tg-flow-grid {
        grid-template-columns: 1fr !important;
    }
    .tg-flow {
        flex-direction: column !important;
    }
    .tg-flow > div {
        min-width: 100% !important;
    }
    /* Quick start strip: stack steps and buttons */
    #quickStartStrip {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        gap: 1rem;
    }
    #quickStartStrip > div:first-child {
        justify-content: center;
    }
    #trySampleBtn,
    #quickStartStrip button {
        width: 100%;
        min-height: 48px;
    }
    /* Decision context form: full width inputs */
    .decision-context-form .form-row {
        flex-direction: column;
    }
    .decision-context-form .form-group {
        width: 100%;
    }
    .decision-context-form select,
    .decision-context-form textarea {
        width: 100%;
        box-sizing: border-box;
    }
    /* Submit button: full width on mobile */
    #submitBtn {
        width: 100%;
        min-height: 52px;
    }
    /* Explanation section (TrustGate vs Sentinel): stack on mobile */
    #explanationSection {
        padding: 1rem !important;
    }
    #explanationSection .explanation-grid {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }
    #explanationSection .explanation-step {
        min-width: 100% !important;
    }
    #explanationSection .explanation-steps-row {
        flex-direction: column;
        align-items: stretch;
    }
    #explanationSection .explanation-steps-row > div:not(.explanation-step) {
        text-align: center;
    }
    /* File upload area: larger tap target */
    .file-upload-area {
        min-height: 180px;
        padding: 1.5rem;
    }
    .choose-file-btn {
        min-height: 48px;
        padding: 0.75rem 1.5rem;
    }
}

@media (max-width: 480px) {
    #resultsSection,
    #verdict,
    #fixesSelectionSection {
        overflow-wrap: break-word;
        word-wrap: break-word;
    }
    #resultsSection .results-card {
        padding: 1rem;
    }
    #assessmentTabsSection .tab-btn,
    #assessmentTabsSection [role="tab"] {
        min-height: 44px;
        padding: 0.75rem 1rem;
    }
    #fixesSelectionSection h3 {
        font-size: 1.125rem;
    }
}