/* ===================================
   Men's Testosterone Guide - Dark Bold Design
   =================================== */

/* === CSS Variables === */
:root {
    /* Dark Color Palette */
    --navy-dark: #0f172a;
    --navy: #1e293b;
    --slate-dark: #1e293b;
    --slate: #334155;
    --slate-light: #475569;
    --slate-lighter: #64748b;
    
    /* Accent Colors */
    --electric-blue: #00d4ff;
    --electric-blue-dark: #00a8cc;
    --orange: #ff6b35;
    --orange-dark: #cc5529;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    /* Text Colors */
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* Backgrounds */
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Mono', monospace;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
    
    /* Borders */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-darker);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* === Hero Section === */
.hero {
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--slate-dark) 100%);
    padding: var(--space-3xl) var(--space-lg);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 107, 53, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-eyebrow {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--electric-blue);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    font-weight: 500;
}

.hero-badge {
    display: inline-block;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--electric-blue);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--border-radius-lg);
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--text-secondary);
}

/* === Content Sections === */
.content {
    background-color: var(--bg-dark);
}

.section {
    padding: var(--space-3xl) var(--space-lg);
}

.section-container {
    max-width: 1100px;
    margin: 0 auto;
}

.section-title {
    font-size: clamp(1.875rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
    line-height: 1.2;
}

.section-intro {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

/* === Typography === */
.body-text {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.body-text.large {
    font-size: 1.25rem;
    color: var(--text-primary);
    font-weight: 500;
}

.body-text.emphasis {
    color: var(--text-primary);
    font-weight: 600;
}

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

.body-text em {
    color: var(--electric-blue);
    font-style: normal;
}

/* === Result Box (Lab Result Display) === */
.result-box {
    background: var(--bg-card);
    border: 2px solid var(--slate);
    border-radius: var(--border-radius-lg);
    padding: var(--space-xl);
    margin: var(--space-xl) auto;
    max-width: 500px;
    text-align: center;
}

.result-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.result-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--electric-blue);
    font-family: var(--font-mono);
    margin-bottom: var(--space-xs);
}

.result-range {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.result-status {
    display: inline-block;
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--border-radius-sm);
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

/* === Symptom Compact List === */
.symptom-list-compact {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin: var(--space-xl) 0;
}

.symptom-check {
    background: var(--bg-card);
    padding: var(--space-md);
    border-radius: var(--border-radius-md);
    border-left: 3px solid var(--orange);
    font-weight: 500;
    color: var(--text-secondary);
}

/* === Callout Boxes === */
.callout-box {
    padding: var(--space-xl);
    border-radius: var(--border-radius-lg);
    margin: var(--space-xl) 0;
    border-left: 4px solid;
}

.callout-box.primary {
    background: rgba(0, 212, 255, 0.05);
    border-color: var(--electric-blue);
}

.callout-box.alert {
    background: rgba(239, 68, 68, 0.05);
    border-color: var(--danger);
}

.callout-box.warn {
    background: rgba(245, 158, 11, 0.05);
    border-color: var(--warning);
}

.callout-box.warm {
    background: rgba(255, 107, 53, 0.05);
    border-color: var(--orange);
}

.callout-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.callout-box p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.callout-box p:last-child {
    margin-bottom: 0;
}

/* === Symptom Grid === */
.symptom-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

.symptom-card {
    background: var(--bg-card);
    padding: var(--space-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--slate);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.symptom-card.fade-in {
    opacity: 1;
    transform: translateY(0);
}

.symptom-card:hover {
    border-color: var(--electric-blue);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.symptom-card.featured {
    border: 2px solid var(--electric-blue);
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, var(--bg-card) 100%);
}

.symptom-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.symptom-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.symptom-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.symptom-data {
    padding-top: var(--space-md);
    border-top: 1px solid var(--slate);
    font-size: 0.9375rem;
    color: var(--text-muted);
}

.symptom-data strong {
    color: var(--electric-blue);
    font-weight: 600;
}

/* === Reason Cards === */
.reason-cards {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    margin: var(--space-xl) 0;
}

.reason-card {
    background: var(--bg-card);
    padding: var(--space-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--slate);
    position: relative;
    opacity: 0;
    transform: translateX(-20px);
}

.reason-card.fade-in {
    opacity: 1;
    transform: translateX(0);
}

.reason-number {
    position: absolute;
    top: var(--space-lg);
    left: var(--space-lg);
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--electric-blue) 0%, var(--electric-blue-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--navy-dark);
}

.reason-title {
    font-size: 1.375rem;
    font-weight: 700;
    margin-left: 64px;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
    line-height: 1.3;
}

.reason-content {
    margin-top: var(--space-md);
}

.reason-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.reason-insight {
    background: rgba(0, 212, 255, 0.05);
    border-left: 3px solid var(--electric-blue);
    padding: var(--space-md);
    margin: var(--space-md) 0;
    border-radius: var(--border-radius-sm);
}

.reason-insight strong {
    color: var(--electric-blue);
}

/* === Clean Lists === */
.clean-list {
    list-style: none;
    padding: 0;
    margin: var(--space-md) 0;
}

.clean-list li {
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    position: relative;
    color: var(--text-secondary);
}

.clean-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--electric-blue);
    font-weight: 700;
}

.clean-list.compact li {
    margin-bottom: var(--space-xs);
}

/* === Factors List === */
.factors-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xl);
    margin: var(--space-xl) 0;
}

.factor-item {
    opacity: 0;
    transform: translateY(20px);
}

.factor-item.fade-in {
    opacity: 1;
    transform: translateY(0);
}

.factor-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.factor-number {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--electric-blue) 0%, var(--electric-blue-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--navy-dark);
    flex-shrink: 0;
}

.factor-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

.factor-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.factor-highlight {
    background: rgba(0, 212, 255, 0.05);
    border-left: 3px solid var(--electric-blue);
    padding: var(--space-md) var(--space-lg);
    margin: var(--space-lg) 0;
    border-radius: var(--border-radius-sm);
}

.factor-highlight strong {
    color: var(--electric-blue);
    display: block;
    margin-bottom: var(--space-xs);
}

/* === Nutrient List === */
.nutrient-list {
    list-style: none;
    padding: 0;
    margin: var(--space-md) 0;
}

.nutrient-list li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-lg);
    position: relative;
    color: var(--text-secondary);
    line-height: 1.6;
}

.nutrient-list li::before {
    content: "💊";
    position: absolute;
    left: 0;
}

.nutrient-list li strong {
    color: var(--electric-blue);
}

/* === Test Panels === */
.test-panels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

.test-panel {
    background: var(--bg-card);
    padding: var(--space-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--slate);
    opacity: 0;
    transform: scale(0.95);
}

.test-panel.fade-in {
    opacity: 1;
    transform: scale(1);
}

.test-panel-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--electric-blue);
}

.test-list {
    list-style: none;
    padding: 0;
}

.test-list li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--slate);
    color: var(--text-primary);
    font-weight: 500;
}

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

.test-note {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: var(--space-xs);
}

/* === Foundations Grid === */
.foundations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

.foundation-card {
    background: var(--bg-card);
    padding: var(--space-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--slate);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.foundation-card.fade-in {
    opacity: 1;
    transform: translateY(0);
}

.foundation-card:hover {
    border-color: var(--electric-blue);
    box-shadow: var(--shadow-glow);
}

.foundation-card.featured {
    border: 2px solid var(--electric-blue);
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, var(--bg-card) 100%);
}

.foundation-label {
    display: inline-block;
    background: rgba(0, 212, 255, 0.1);
    color: var(--electric-blue);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--border-radius-sm);
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.foundation-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.foundation-intro {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    font-style: italic;
}

.foundation-how {
    margin-bottom: var(--space-lg);
}

.foundation-how strong {
    display: block;
    color: var(--electric-blue);
    margin-bottom: var(--space-sm);
    font-size: 0.9375rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.foundation-how ul {
    list-style: none;
    padding: 0;
}

.foundation-how ul li {
    padding: var(--space-xs) 0 var(--space-xs) var(--space-lg);
    position: relative;
    color: var(--text-secondary);
    line-height: 1.6;
}

.foundation-how ul li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
}

.foundation-why {
    padding-top: var(--space-md);
    border-top: 1px solid var(--slate);
    font-size: 0.9375rem;
    color: var(--text-muted);
}

.foundation-why strong {
    color: var(--electric-blue);
}

/* === TRT Section === */
.trt-truth-box {
    background: rgba(239, 68, 68, 0.05);
    border: 1px solid var(--danger);
    border-radius: var(--border-radius-lg);
    padding: var(--space-xl);
    margin: var(--space-xl) 0;
}

.trt-truth-box h3 {
    color: var(--danger);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.trt-truth-box p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.trt-truth-box p:last-child {
    margin-bottom: 0;
    font-weight: 600;
    color: var(--text-primary);
}

/* === Closing Section === */
.closing-message {
    background: var(--bg-card);
    padding: var(--space-xl);
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--electric-blue);
    margin: var(--space-xl) 0;
}

.closing-message p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.closing-message p:last-child {
    margin-bottom: 0;
}

/* === Affirmation Box === */
.affirmation-box {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(0, 212, 255, 0.05) 100%);
    border: 2px solid var(--electric-blue);
    border-radius: var(--border-radius-lg);
    padding: var(--space-2xl);
    margin: var(--space-xl) 0;
    text-align: center;
}

.affirmation-box p {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.affirmation-box p:last-child {
    margin-bottom: 0;
}

.affirmation-box.final {
    margin-top: var(--space-2xl);
}

/* === CTA Section === */
.cta-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--navy) 100%);
    padding: var(--space-3xl) var(--space-lg);
}

.cta-container {
    max-width: 1100px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.cta-intro {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
}

.cta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.cta-card {
    background: var(--bg-card);
    padding: var(--space-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--slate);
    text-align: center;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    opacity: 0;
    transform: scale(0.95);
}

.cta-card.fade-in {
    opacity: 1;
    transform: scale(1);
}

.cta-card:hover {
    border-color: var(--electric-blue);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px) scale(1.02);
}

.cta-card.featured {
    border: 2px solid var(--electric-blue);
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, var(--bg-card) 100%);
    grid-column: span 2;
}

.cta-number {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--electric-blue) 0%, var(--electric-blue-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--navy-dark);
    margin: 0 auto var(--space-lg);
}

.cta-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.cta-card-text {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
    flex-grow: 1;
}

.cta-card-subtext {
    font-size: 0.9375rem;
    color: var(--text-muted);
    margin-top: var(--space-md);
}

/* === Buttons === */
.cta-button {
    display: inline-block;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--border-radius-md);
    font-weight: 700;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s ease;
    font-size: 1rem;
    cursor: pointer;
}

.cta-button.primary {
    background: linear-gradient(135deg, var(--electric-blue) 0%, var(--electric-blue-dark) 100%);
    color: var(--navy-dark);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.cta-button.primary:hover {
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.5);
    transform: translateY(-2px);
}

.cta-button.secondary {
    background: transparent;
    border: 2px solid var(--electric-blue);
    color: var(--electric-blue);
}

.cta-button.secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-2px);
}

/* === Footer === */
.footer {
    background: var(--navy-dark);
    padding: var(--space-2xl) var(--space-lg);
    border-top: 1px solid var(--slate);
}

.footer-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--electric-blue);
    margin-bottom: var(--space-xs);
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.9375rem;
}

.footer-cta {
    color: var(--electric-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: color 0.3s ease;
}

.footer-cta:hover {
    color: var(--electric-blue-dark);
}

.footer-disclaimer {
    max-width: 800px;
    margin: 0 auto;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--slate);
    text-align: center;
}

.footer-disclaimer p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* === Reading Progress Bar === */
#reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: linear-gradient(90deg, var(--electric-blue) 0%, var(--electric-blue-dark) 100%);
    z-index: 9999;
    transition: width 0.1s ease;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

/* === Back to Top Button === */
#back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--electric-blue) 0%, var(--electric-blue-dark) 100%);
    border: none;
    border-radius: 50%;
    color: var(--navy-dark);
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

#back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

#back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.5);
}

/* === Responsive Design === */
@media (max-width: 768px) {
    .hero {
        padding: var(--space-2xl) var(--space-md);
    }
    
    .section {
        padding: var(--space-2xl) var(--space-md);
    }
    
    .symptom-grid,
    .test-panels,
    .foundations-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-card.featured {
        grid-column: span 1;
    }
    
    .footer-container {
        flex-direction: column;
        text-align: center;
    }
    
    #back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 48px;
        height: 48px;
    }
}

@media (max-width: 480px) {
    .result-box {
        padding: var(--space-lg);
    }
    
    .result-value {
        font-size: 2.5rem;
    }
    
    .callout-box {
        padding: var(--space-lg);
    }
    
    .symptom-card,
    .foundation-card,
    .test-panel {
        padding: var(--space-lg);
    }
}