/* ============================================================================
   PsychAI CSS - Professional Mental Health Platform
   ============================================================================ */

/* ============================================================================
   1. CSS VARIABLES & ROOT
   ============================================================================ */

:root {
    /* Color Palette */
    --primary: #6C5CE7;
    --primary-dark: #5F3DC4;
    --primary-light: #A29BFE;
    --secondary: #0984E3;
    --secondary-dark: #0770D3;
    --secondary-light: #74B9FF;
    --accent: #00B894;
    --accent-dark: #009173;
    --danger: #D63031;
    --danger-light: #E84D3D;
    --warning: #FDCB6E;
    --warning-dark: #F5A623;
    --success: #00B894;
    --dark: #2D3436;
    --dark-secondary: #636E72;
    --light: #DFE6E9;
    --light-secondary: #F5F6FA;
    --border: #E8E8E8;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Courier New', monospace;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    --font-size-3xl: 40px;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    --shadow-focus: 0 0 0 3px rgba(108, 92, 231, 0.1);
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    --border-radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Z-Index */
    --z-sticky: 100;
    --z-dropdown: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-tooltip: 500;
}

/* ============================================================================
   2. RESET & TYPOGRAPHY
   ============================================================================ */

* {
    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: 1.6;
    color: var(--dark);
    background-color: #FFFFFF;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-3xl);
}

h2 {
    font-size: var(--font-size-2xl);
}

h3 {
    font-size: var(--font-size-xl);
}

h4 {
    font-size: var(--font-size-lg);
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

/* ============================================================================
   3. CONTAINER & LAYOUT
   ============================================================================ */

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

.grid {
    display: grid;
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.flex {
    display: flex;
}

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

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.flex-col {
    flex-direction: column;
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.gap-lg {
    gap: var(--spacing-lg);
}

/* ============================================================================
   4. HEADER & NAVIGATION
   ============================================================================ */

.header {
    background-color: #FFFFFF;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: var(--spacing-2xl);
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--dark-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-fast);
}

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

.nav-link:hover::after {
    width: 100%;
}

/* ============================================================================
   5. HERO SECTION
   ============================================================================ */

.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #FFFFFF;
    padding: var(--spacing-3xl) var(--spacing-md);
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite reverse;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    animation: fade-in-up 0.8s ease;
}

.hero-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    opacity: 0.95;
}

.hero-description {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================================================
   6. SECTIONS
   ============================================================================ */

section {
    padding: var(--spacing-3xl) var(--spacing-md);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    font-size: var(--font-size-2xl);
    color: var(--dark);
}

/* Features Section */
.features {
    background-color: var(--light-secondary);
}

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

.feature-card {
    background: #FFFFFF;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    text-align: center;
    animation: fade-in 0.6s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    margin: 0 auto var(--spacing-md);
    transition: transform var(--transition-base);
}

.feature-card:hover .feature-icon {
    transform: rotate(5deg) scale(1.05);
}

.feature-title {
    color: var(--dark);
    margin-bottom: var(--spacing-md);
}

.feature-description {
    color: var(--dark-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

/* Trust Section */
.trust {
    background-color: #FFFFFF;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
}

.trust-item {
    text-align: center;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    background: var(--light-secondary);
    transition: all var(--transition-base);
}

.trust-item:hover {
    background: #FFFFFF;
    box-shadow: var(--shadow-md);
}

.trust-icon {
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: #FFFFFF;
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.trust-title {
    color: var(--dark);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.trust-description {
    color: var(--dark-secondary);
    font-size: var(--font-size-sm);
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #FFFFFF;
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-md);
}

.cta h2 {
    color: #FFFFFF;
    margin-bottom: var(--spacing-md);
}

.cta p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
}

/* ============================================================================
   7. BUTTONS
   ============================================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid transparent;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-family);
    white-space: nowrap;
    text-decoration: none;
}

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

.btn-primary {
    background-color: var(--primary);
    color: #FFFFFF;
    border-color: var(--primary);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--secondary);
    color: #FFFFFF;
    border-color: var(--secondary);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--secondary-dark);
    border-color: var(--secondary-dark);
}

.btn-danger {
    background-color: var(--danger);
    color: #FFFFFF;
    border-color: var(--danger);
}

.btn-danger:hover:not(:disabled) {
    background-color: var(--danger-light);
    border-color: var(--danger-light);
}

.btn-ghost {
    background-color: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--primary);
    color: #FFFFFF;
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn-block {
    width: 100%;
}

/* ============================================================================
   8. FOOTER
   ============================================================================ */

.footer {
    background-color: var(--dark);
    color: #FFFFFF;
    padding: var(--spacing-3xl) var(--spacing-md) var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
    color: #FFFFFF;
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: #FFFFFF;
}

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

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--spacing-sm);
}

/* ============================================================================
   9. FORMS
   ============================================================================ */

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

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

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: var(--shadow-focus);
}

.form-control::placeholder {
    color: var(--dark-secondary);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

select.form-control {
    cursor: pointer;
}

.form-error {
    border-color: var(--danger) !important;
}

.form-error-message {
    color: var(--danger);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

/* ============================================================================
   10. SESSION WORKSPACE
   ============================================================================ */

.session-workspace {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    height: calc(100vh - 80px);
}

.session-main {
    display: flex;
    flex-direction: column;
    background: var(--light-secondary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.session-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.session-video {
    flex: 1;
    background: #000000;
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.session-controls {
    padding: var(--spacing-lg);
    background: #FFFFFF;
    border-top: 1px solid var(--border);
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.session-transcript {
    background: #FFFFFF;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    max-height: 400px;
    overflow-y: auto;
    box-shadow: var(--shadow-md);
}

.transcript-entry {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

.transcript-speaker {
    font-weight: 600;
    color: var(--primary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.transcript-text {
    color: var(--dark-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

/* ============================================================================
   11. AI SUGGESTIONS
   ============================================================================ */

.ai-suggestions {
    background: #FFFFFF;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    max-height: 500px;
    overflow-y: auto;
}

.suggestions-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--dark);
}

.suggestion-item {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--primary);
    background: var(--light-secondary);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
}

.suggestion-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.suggestion-item.risk {
    border-left-color: var(--danger);
    background: rgba(214, 48, 49, 0.05);
}

.suggestion-item.technique {
    border-left-color: var(--secondary);
    background: rgba(9, 132, 227, 0.05);
}

.suggestion-item.prompt {
    border-left-color: var(--accent);
    background: rgba(0, 184, 148, 0.05);
}

.suggestion-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-xs);
}

.suggestion-label.risk {
    background: var(--danger);
    color: #FFFFFF;
}

.suggestion-label.technique {
    background: var(--secondary);
    color: #FFFFFF;
}

.suggestion-label.prompt {
    background: var(--accent);
    color: #FFFFFF;
}

.suggestion-text {
    color: var(--dark);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

/* ============================================================================
   12. RECORDING INDICATOR
   ============================================================================ */

.recording-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(214, 48, 49, 0.1);
    border-radius: var(--border-radius-full);
    color: var(--danger);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.recording-dot {
    width: 12px;
    height: 12px;
    background: var(--danger);
    border-radius: 50%;
    animation: pulse 1.5s ease-in-out infinite;
}

.recording-dot.inactive {
    animation: none;
    opacity: 0.5;
}

/* ============================================================================
   13. SESSION STATUS & BADGES
   ============================================================================ */

.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    white-space: nowrap;
}

.badge-primary {
    background: var(--primary);
    color: #FFFFFF;
}

.badge-secondary {
    background: var(--secondary);
    color: #FFFFFF;
}

.badge-success {
    background: var(--success);
    color: #FFFFFF;
}

.badge-danger {
    background: var(--danger);
    color: #FFFFFF;
}

.badge-warning {
    background: var(--warning);
    color: var(--dark);
}

.status-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.status-badge.active {
    background: rgba(0, 184, 148, 0.1);
    color: var(--success);
}

.status-badge.inactive {
    background: rgba(131, 133, 135, 0.1);
    color: var(--dark-secondary);
}

/* ============================================================================
   14. MOOD & ASSESSMENT
   ============================================================================ */

.mood-rating {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.mood-button {
    width: 50px;
    height: 50px;
    border: 2px solid var(--border);
    border-radius: var(--border-radius-full);
    background: #FFFFFF;
    cursor: pointer;
    font-size: 24px;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.mood-button:hover {
    transform: scale(1.1);
    border-color: var(--primary);
}

.mood-button.selected {
    background: var(--primary);
    border-color: var(--primary);
    transform: scale(1.15);
}

.assessment-score {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--light-secondary);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-md);
}

.score-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary);
    min-width: 60px;
}

.score-label {
    flex: 1;
    color: var(--dark);
}

.score-label strong {
    display: block;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.score-description {
    font-size: var(--font-size-sm);
    color: var(--dark-secondary);
}

/* ============================================================================
   15. TOAST NOTIFICATIONS
   ============================================================================ */

.toast {
    position: fixed;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    background: var(--dark);
    color: #FFFFFF;
    font-size: var(--font-size-sm);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-modal);
    max-width: 400px;
    animation: slide-in-right 0.3s ease;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.toast.show {
    opacity: 1;
}

.toast-success {
    background: var(--success);
}

.toast-error {
    background: var(--danger);
}

.toast-warning {
    background: var(--warning);
    color: var(--dark);
}

.toast-info {
    background: var(--secondary);
}

/* ============================================================================
   16. ANIMATIONS
   ============================================================================ */

@keyframes fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slide-in-right {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slide-in-left {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(20px);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ============================================================================
   17. RESPONSIVE DESIGN
   ============================================================================ */

@media (max-width: 768px) {
    :root {
        --font-size-3xl: 32px;
        --font-size-2xl: 24px;
        --spacing-3xl: 32px;
    }

    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }

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

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

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

    .session-workspace {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-base: 14px;
        --font-size-lg: 16px;
        --font-size-xl: 20px;
        --spacing-lg: 16px;
        --spacing-xl: 24px;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    h1 {
        font-size: var(--font-size-2xl);
    }

    .hero {
        padding: var(--spacing-2xl) var(--spacing-md);
        min-height: 500px;
    }

    .nav {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    section {
        padding: var(--spacing-2xl) var(--spacing-md);
    }

    .trust-grid {
        grid-template-columns: 1fr;
    }

    .btn-lg {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

/* ============================================================================
   18. PRINT STYLES
   ============================================================================ */

@media print {
    .header,
    .footer,
    .session-controls,
    .hero-buttons,
    .btn {
        display: none;
    }

    body {
        background: #FFFFFF;
    }

    .session-transcript,
    .ai-suggestions {
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid var(--border);
    }

    h1, h2, h3 {
        page-break-after: avoid;
    }

    p {
        page-break-inside: avoid;
    }
}

/* ============================================================================
   19. ACCESSIBILITY
   ============================================================================ */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

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

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ============================================================================
   20. DARK MODE SUPPORT
   ============================================================================ */

@media (prefers-color-scheme: dark) {
    body {
        background-color: var(--dark);
        color: #FFFFFF;
    }

    .header {
        background-color: #1A1A1A;
        border-color: rgba(255, 255, 255, 0.1);
    }

    .features {
        background-color: #1A1A1A;
    }

    .feature-card {
        background-color: #2D2D2D;
        color: #FFFFFF;
    }

    .feature-title {
        color: #FFFFFF;
    }

    .trust-item {
        background: #2D2D2D;
    }

    .trust-item:hover {
        background: #1A1A1A;
    }

    .session-transcript,
    .ai-suggestions {
        background: #2D2D2D;
        color: #FFFFFF;
    }

    .form-control {
        background: #2D2D2D;
        color: #FFFFFF;
        border-color: #404040;
    }

    .form-control:focus {
        border-color: var(--primary);
    }
}