/* Tool Borrowing Etiquette Compass - Styles */

:root {
    --color-primary: #2D5A27;
    --color-primary-dark: #1E3D1A;
    --color-primary-light: #4A7C42;
    --color-secondary: #D4A84B;
    --color-secondary-dark: #B8922F;
    --color-accent: #E8723A;
    --color-background: #FAF8F5;
    --color-surface: #FFFFFF;
    --color-text: #2C2C2C;
    --color-text-light: #5A5A5A;
    --color-border: #E0DDD8;
    --color-success: #4A7C42;
    --color-warning: #D4A84B;
    --color-error: #C4453A;
    
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-size-base: 16px;
    --line-height: 1.6;
    
    --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: 8px;
    --border-radius-lg: 12px;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
    
    --transition: 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height);
    color: var(--color-text);
    background-color: var(--color-background);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-primary);
    font-weight: 700;
    font-size: 1.1rem;
}

.logo-icon {
    width: 28px;
    height: 28px;
}

.main-nav {
    display: flex;
    gap: var(--spacing-lg);
}

.main-nav a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition);
}

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

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.cta-button {
    display: inline-block;
    background: var(--color-secondary);
    color: var(--color-primary-dark);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition);
}

.cta-button:hover {
    background: var(--color-secondary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Compass Section */
.compass-section {
    padding: var(--spacing-3xl) 0;
}

.compass-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.compass-form {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.compass-form h2 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.5rem;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.form-group select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    background: var(--color-surface);
    cursor: pointer;
    transition: border-color var(--transition);
}

.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.submit-button {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.submit-button:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Results */
.compass-results {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    min-height: 400px;
}

.results-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 300px;
    color: var(--color-text-light);
    text-align: center;
}

.placeholder-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.result-card {
    animation: fadeIn 0.3s ease;
}

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

.result-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
}

.result-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
}

.result-header h3 {
    color: var(--color-primary);
    font-size: 1.3rem;
}

.result-section {
    margin-bottom: var(--spacing-lg);
}

.result-section h4 {
    color: var(--color-primary-dark);
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.result-section h4 svg {
    width: 20px;
    height: 20px;
}

.script-box {
    background: var(--color-background);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-secondary);
    font-style: italic;
    margin-bottom: var(--spacing-md);
}

.timeline-badge {
    display: inline-block;
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.tips-list {
    list-style: none;
}

.tips-list li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
}

.tips-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: bold;
}

.result-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.action-button {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--color-primary);
    background: transparent;
    color: var(--color-primary);
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.action-button:hover {
    background: var(--color-primary);
    color: white;
}

.action-button.primary {
    background: var(--color-primary);
    color: white;
}

.action-button.primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

/* Scenarios Section */
.scenarios-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-surface);
}

.scenarios-section h2,
.mistakes-section h2,
.about-section h2 {
    color: var(--color-primary);
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.section-intro {
    text-align: center;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
}

.scenario-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.scenario-card {
    background: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.scenario-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.scenario-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.scenario-card h3 {
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-md);
}

.scenario-card p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

.scenario-tip {
    background: var(--color-secondary);
    color: var(--color-primary-dark);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
}

/* Mistakes Section */
.mistakes-section {
    padding: var(--spacing-3xl) 0;
}

.mistakes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.mistake-card {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    position: relative;
    padding-top: var(--spacing-2xl);
}

.mistake-number {
    position: absolute;
    top: -15px;
    left: var(--spacing-xl);
    width: 40px;
    height: 40px;
    background: var(--color-error);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.mistake-card h3 {
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-md);
}

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

/* About Section */
.about-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-surface);
}

.about-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-light);
}

.version-info {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* Footer */
.site-footer {
    background: var(--color-primary-dark);
    color: white;
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color var(--transition);
}

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

.copyright {
    opacity: 0.7;
    font-size: 0.9rem;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Responsive */
@media (max-width: 900px) {
    .compass-layout {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 600px) {
    .site-header .container {
        flex-direction: column;
    }
    
    .main-nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .hero {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .compass-form,
    .compass-results {
        padding: var(--spacing-lg);
    }
    
    .result-actions {
        flex-direction: column;
    }
    
    .scenario-grid,
    .mistakes-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

/* Print Styles */
@media print {
    .site-header,
    .site-footer,
    .compass-form,
    .result-actions,
    .cta-button {
        display: none;
    }
    
    .compass-results {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    body {
        background: white;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-border: #000;
        --color-text-light: #333;
    }
}


/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}