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

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --bg: #ffffff;
    --bg-secondary: #f8fafc;
    --text: #1e293b;
    --text-light: #64748b;
    --border: rgba(226, 232, 240, 0.5);
    --border-light: rgba(226, 232, 240, 0.3);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
    --shadow-colored: 0 8px 16px rgba(37, 99, 235, 0.15), 0 4px 8px rgba(37, 99, 235, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    background-attachment: fixed;
    min-height: 100vh;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(37, 99, 235, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(37, 99, 235, 0.02) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* Navigation */
nav {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 250, 252, 0.95) 100%);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.05), 0 0 0 1px rgba(0, 0, 0, 0.02);
    position: relative;
}

nav::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        rgba(37, 99, 235, 0.6) 0%,
        rgba(139, 92, 246, 0.6) 25%,
        rgba(236, 72, 153, 0.6) 50%,
        rgba(6, 182, 212, 0.6) 75%,
        rgba(16, 185, 129, 0.6) 100%);
    opacity: 0.8;
}

nav .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav .logo {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, #2563eb 0%, #8b5cf6 50%, #ec4899 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
    position: relative;
}

nav .logo::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #2563eb, #8b5cf6, #ec4899);
    transition: width 0.3s ease;
}

nav .logo:hover::after {
    width: 100%;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 0.5rem;
}

nav a {
    text-decoration: none;
    color: var(--text);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

nav a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    transition: width 0.3s ease;
}

nav a:hover {
    color: var(--primary);
    background: rgba(37, 99, 235, 0.08);
}

nav a:hover::before {
    width: 80%;
}

nav a.active {
    color: var(--primary);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.12) 0%, rgba(37, 99, 235, 0.06) 100%);
    font-weight: 600;
}

nav a.active::before {
    width: 80%;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

/* Different colors for different nav items */
nav a[href="index.html"]:hover,
nav a[href="index.html"].active,
nav a[href="/"]:hover,
nav a[href="/"].active {
    color: #2563eb;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.12) 0%, rgba(37, 99, 235, 0.06) 100%);
}

nav a[href="index.html"]:hover::before,
nav a[href="index.html"].active::before,
nav a[href="/"]:hover::before,
nav a[href="/"].active::before {
    background: linear-gradient(90deg, transparent, #2563eb, transparent);
}

nav a[href="classify.html"]:hover,
nav a[href="classify.html"].active {
    color: #10b981;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.12) 0%, rgba(16, 185, 129, 0.06) 100%);
}

nav a[href="classify.html"]:hover::before,
nav a[href="classify.html"].active::before {
    background: linear-gradient(90deg, transparent, #10b981, transparent);
}

nav a[href="result.html"]:hover,
nav a[href="result.html"].active {
    color: #ec4899;
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.12) 0%, rgba(236, 72, 153, 0.06) 100%);
}

nav a[href="result.html"]:hover::before,
nav a[href="result.html"].active::before {
    background: linear-gradient(90deg, transparent, #ec4899, transparent);
}

nav a[href="confidence.html"]:hover,
nav a[href="confidence.html"].active {
    color: #06b6d4;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.12) 0%, rgba(6, 182, 212, 0.06) 100%);
}

nav a[href="confidence.html"]:hover::before,
nav a[href="confidence.html"].active::before {
    background: linear-gradient(90deg, transparent, #06b6d4, transparent);
}

nav a[href="training.html"]:hover,
nav a[href="training.html"].active {
    color: #8b5cf6;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.12) 0%, rgba(139, 92, 246, 0.06) 100%);
}

nav a[href="training.html"]:hover::before,
nav a[href="training.html"].active::before {
    background: linear-gradient(90deg, transparent, #8b5cf6, transparent);
}

nav a[href="limitations.html"]:hover,
nav a[href="limitations.html"].active {
    color: #f59e0b;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.12) 0%, rgba(245, 158, 11, 0.06) 100%);
}

nav a[href="limitations.html"]:hover::before,
nav a[href="limitations.html"].active::before {
    background: linear-gradient(90deg, transparent, #f59e0b, transparent);
}

nav a[href="reflection.html"]:hover,
nav a[href="reflection.html"].active {
    color: #6366f1;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.12) 0%, rgba(99, 102, 241, 0.06) 100%);
}

nav a[href="reflection.html"]:hover::before,
nav a[href="reflection.html"].active::before {
    background: linear-gradient(90deg, transparent, #6366f1, transparent);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

/* Typography */
h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text);
}

h2 {
    font-size: 1.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text);
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text);
}

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* Cards */
.card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.9) 100%);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.3), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12), 0 6px 12px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(255, 255, 255, 0.6) inset;
    border-color: rgba(37, 99, 235, 0.2);
}

/* Colored Card Variants */
.card-primary {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, rgba(37, 99, 235, 0.03) 100%);
    border-color: rgba(37, 99, 235, 0.2);
}

.card-primary::before {
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.5), transparent);
}

.card-primary:hover {
    border-color: rgba(37, 99, 235, 0.4);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.15), 0 6px 12px rgba(37, 99, 235, 0.1), 0 0 0 1px rgba(255, 255, 255, 0.6) inset;
}

.card-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, rgba(16, 185, 129, 0.03) 100%);
    border-color: rgba(16, 185, 129, 0.2);
}

.card-success::before {
    background: linear-gradient(90deg, transparent, rgba(16, 185, 129, 0.5), transparent);
}

.card-success:hover {
    border-color: rgba(16, 185, 129, 0.4);
    box-shadow: 0 12px 24px rgba(16, 185, 129, 0.15), 0 6px 12px rgba(16, 185, 129, 0.1), 0 0 0 1px rgba(255, 255, 255, 0.6) inset;
}

.card-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(245, 158, 11, 0.03) 100%);
    border-color: rgba(245, 158, 11, 0.2);
}

.card-warning::before {
    background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.5), transparent);
}

.card-warning:hover {
    border-color: rgba(245, 158, 11, 0.4);
    box-shadow: 0 12px 24px rgba(245, 158, 11, 0.15), 0 6px 12px rgba(245, 158, 11, 0.1), 0 0 0 1px rgba(255, 255, 255, 0.6) inset;
}

.card-purple {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.08) 0%, rgba(139, 92, 246, 0.03) 100%);
    border-color: rgba(139, 92, 246, 0.2);
}

.card-purple::before {
    background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.5), transparent);
}

.card-purple:hover {
    border-color: rgba(139, 92, 246, 0.4);
    box-shadow: 0 12px 24px rgba(139, 92, 246, 0.15), 0 6px 12px rgba(139, 92, 246, 0.1), 0 0 0 1px rgba(255, 255, 255, 0.6) inset;
}

.card-pink {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.08) 0%, rgba(236, 72, 153, 0.03) 100%);
    border-color: rgba(236, 72, 153, 0.2);
}

.card-pink::before {
    background: linear-gradient(90deg, transparent, rgba(236, 72, 153, 0.5), transparent);
}

.card-pink:hover {
    border-color: rgba(236, 72, 153, 0.4);
    box-shadow: 0 12px 24px rgba(236, 72, 153, 0.15), 0 6px 12px rgba(236, 72, 153, 0.1), 0 0 0 1px rgba(255, 255, 255, 0.6) inset;
}

.card-cyan {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.08) 0%, rgba(6, 182, 212, 0.03) 100%);
    border-color: rgba(6, 182, 212, 0.2);
}

.card-cyan::before {
    background: linear-gradient(90deg, transparent, rgba(6, 182, 212, 0.5), transparent);
}

.card-cyan:hover {
    border-color: rgba(6, 182, 212, 0.4);
    box-shadow: 0 12px 24px rgba(6, 182, 212, 0.15), 0 6px 12px rgba(6, 182, 212, 0.1), 0 0 0 1px rgba(255, 255, 255, 0.6) inset;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3), 0 2px 4px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4), 0 4px 8px rgba(37, 99, 235, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3), 0 1px 4px rgba(37, 99, 235, 0.2);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    color: var(--text);
    border: 1px solid var(--border-light);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(37, 99, 235, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
}

.btn-secondary:active {
    transform: translateY(0);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(248, 250, 252, 0.8);
    border-radius: 4px;
    overflow: hidden;
    margin: 0.5rem 0;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    transition: width 0.3s ease;
    box-shadow: 0 2px 4px rgba(37, 99, 235, 0.3), inset 0 1px 2px rgba(255, 255, 255, 0.2);
}

.progress-fill.success {
    background: var(--success);
}

.progress-fill.warning {
    background: var(--warning);
}

.progress-fill.danger {
    background: var(--danger);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}

/* Grid */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {
    .grid-2,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Stats */
.stat {
    text-align: center;
}

.stat .card {
    transition: all 0.3s ease;
}

.stat .card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(255, 255, 255, 0.7) inset;
}

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Image Preview */
.image-preview {
    max-width: 100%;
    max-height: 400px;
    border-radius: 16px;
    border: 1px solid var(--border-light);
    margin: 1rem 0;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1), 0 4px 8px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}

/* Sample Selection */
.samples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.sample-item {
    position: relative;
    cursor: pointer;
    border: 2px solid var(--border-light);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    aspect-ratio: 1;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.06), 0 2px 4px rgba(0, 0, 0, 0.04), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}

.sample-item:hover {
    border-color: rgba(37, 99, 235, 0.5);
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.2), 0 6px 12px rgba(37, 99, 235, 0.15), 0 0 0 1px rgba(255, 255, 255, 0.6) inset;
}

.sample-item.selected {
    border-color: rgba(37, 99, 235, 0.6);
    border-width: 2px;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25), 0 4px 10px rgba(37, 99, 235, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.7) inset;
    transform: translateY(-2px);
}

.sample-item.selected::after {
    content: '✓';
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--primary);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.875rem;
    box-shadow: 0 4px 8px rgba(37, 99, 235, 0.4), 0 2px 4px rgba(37, 99, 235, 0.3);
}

.sample-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Loading */
.loading {
    text-align: center;
    padding: 3rem;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-light);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
}

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

.loading-text {
    font-size: 1rem;
    color: var(--text-light);
    margin-top: 1rem;
    min-height: 1.5rem;
}

/* File Upload */
.file-upload {
    border: 2px dashed var(--border-light);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06), 0 1px 4px rgba(0, 0, 0, 0.04), inset 0 1px 2px rgba(255, 255, 255, 0.8);
}

.file-upload:hover {
    border-color: rgba(37, 99, 235, 0.4);
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1), 0 4px 10px rgba(0, 0, 0, 0.06), inset 0 1px 2px rgba(255, 255, 255, 0.9);
}

.file-upload input {
    display: none;
}

/* Chart Placeholder */
.chart-placeholder {
    height: 200px;
    background: rgba(248, 250, 252, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    margin: 1rem 0;
    border: 1px solid var(--border-light);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.06), 0 2px 4px rgba(0, 0, 0, 0.04), inset 0 1px 3px rgba(0, 0, 0, 0.03);
}

/* List */
ul.list {
    list-style: none;
    padding-left: 0;
}

ul.list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-light);
}

ul.list li:last-child {
    border-bottom: none;
}

ul.list li::before {
    content: '•';
    color: var(--primary);
    font-weight: bold;
    margin-right: 0.5rem;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 0;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.08), 0 1px 4px rgba(0, 0, 0, 0.04);
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* Section */
.section {
    margin: 3rem 0;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text);
}

/* Footer Note */
.footer-note {
    font-size: 0.75rem;
    color: var(--text-light);
    text-align: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

/* Reflection Page */
.reflection {
    text-align: center;
    padding: 4rem 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.reflection h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    line-height: 1.3;
}

.reflection p {
    font-size: 1.125rem;
    margin-bottom: 3rem;
    color: var(--text);
}

/* Two Column Layout */
.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

@media (max-width: 768px) {
    .two-column {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.hidden {
    display: none;
}

.confidence-text {
  font-size: 0.2rem;          
  font-weight: 300;         
  color: #a4a7ad;          
  line-height: 1.0.5;
  max-width: 200px;        
}