/**
 * Claria - Expert UI Design System
 * Chrome AI Challenge 2025
 * Modern, Clean, Professional
 */

/* ============================================
   CSS Variables & Design Tokens
   ============================================ */
:root {
    /* Brand Colors */
    --brand-primary: #2563EB;      /* Bright Blue */
    --brand-secondary: #7C3AED;     /* Purple */
    --brand-gradient: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);

    /* Neutral Palette */
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --black: #000000;

    /* Semantic Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;

    /* Typography Scale */
    --font-system: 'Matangi', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", monospace;

    /* Font Sizes - Fluid Typography */
    --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.25vw, 1rem);
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.3rem + 0.8vw, 1.875rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.5vw, 2.25rem);
    --text-4xl: clamp(2.25rem, 1.8rem + 2vw, 3rem);

    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows - Refined */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Layout */
    --max-width: 1200px;
    --content-width: 900px;
}

/* ============================================
   CSS Reset & Base Styles
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Ensure all form elements inherit fonts */
input, textarea, button, select {
    font-family: inherit;
    font-size: inherit;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-system);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--white);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* ============================================
   Layout Structure
   ============================================ */
.app-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

/* ============================================
   Header Section - Clean & Minimal
   ============================================ */
header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
    padding: var(--space-6) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.9);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--brand-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 24px;
    height: 24px;
    color: var(--white);
}

h1 {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--gray-900);
}

/* Header Claria title with Matangi font */
.logo h1 {
    font-family: 'Matangi', var(--font-system);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: #2b7fff;
    letter-spacing: -0.025em;
    margin: 0;
}

.tagline {
    font-size: var(--text-sm);
    color: var(--gray-500);
    font-weight: 400;
}

.ai-status {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--success);
    color: var(--white);
    border: 1px solid var(--success);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
}

.ai-status.active {
    background: var(--success);
    color: var(--white);
    border-color: var(--success);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: currentColor;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

/* ============================================
   Main Content Area
   ============================================ */
main {
    flex: 1;
    padding: var(--space-8) 0 var(--space-16);
    background: var(--gray-50);
}

.content-wrapper {
    max-width: var(--content-width);
    margin: 0 auto;
}

/* ============================================
   Input Section - Card Design
   ============================================ */
.input-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: var(--space-8);
    margin-bottom: var(--space-8);
    border: 1px solid var(--gray-100);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.section-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.section-title svg {
    width: 20px;
    height: 20px;
    color: var(--brand-primary);
}

/* Document Type Pills */
.doc-types {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: var(--space-6);
}

.type-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--gray-700);
    cursor: pointer;
    transition: all var(--transition-base);
}

.type-pill:hover {
    border-color: var(--brand-primary);
    background: var(--gray-50);
}

.type-pill.active {
    background: var(--brand-primary);
    border-color: var(--brand-primary);
    color: var(--white);
}

.type-pill svg {
    width: 16px;
    height: 16px;
}

/* Text Input Area */
.input-wrapper {
    position: relative;
    margin-bottom: calc(var(--space-4) + 40px);
}

#input {
    width: 100%;
    min-height: 200px;
    padding: var(--space-4);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-family: var(--font-system);
    font-size: var(--text-base);
    line-height: 1.6;
    resize: vertical;
    transition: all var(--transition-base);
    background: var(--gray-50);
    position: relative;
}

/* Enhanced resize handle with custom styling */
#input::-webkit-resizer {
    background: transparent;
    width: 20px;
    height: 20px;
}





#input:hover {
    border-color: var(--gray-300);
}


#input:focus {
    outline: none;
    border-color: var(--brand-primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--text-sm);
    color: var(--gray-500);
    margin-top: var(--space-3);
}

.char-count {
    font-variant-numeric: tabular-nums;
}

.input-help kbd {
    display: inline-block;
    padding: 2px 6px;
    background: var(--gray-100);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
}

/* Complexity Selector */
.complexity-section {
    margin-bottom: var(--space-6);
}

.complexity-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--space-3);
}

.complexity-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-3);
}

.complexity-card {
    position: relative;
    padding: var(--space-4);
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
}

.complexity-card:hover {
    border-color: var(--brand-primary);
    box-shadow: var(--shadow-sm);
}

.complexity-card.selected {
    border-color: var(--brand-primary);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
}

.complexity-card input {
    position: absolute;
    opacity: 0;
}

.complexity-title {
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-1);
}

.complexity-desc {
    font-size: var(--text-sm);
    color: var(--gray-500);
}

/* Action Button */
.action-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: var(--space-6);
}

.btn-help {
    font-size: var(--text-xs);
    color: var(--gray-500);
    margin-top: var(--space-2);
    text-align: center;
}

.primary-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-8);
    background: var(--brand-gradient);
    color: var(--white);
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.primary-btn:active {
    transform: translateY(0);
}

.primary-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.primary-btn svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   Processing State
   ============================================ */
.processing {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-6);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
    border: 2px solid var(--brand-primary);
    border-radius: var(--radius-lg);
    margin: var(--space-6) 0;
}

.processing.hidden {
    display: none;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(37, 99, 235, 0.2);
    border-top-color: var(--brand-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ============================================
   Output Section
   ============================================ */
.output-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: var(--space-8);
    border: 1px solid var(--gray-100);
}

.output-section.hidden {
    display: none;
}

.output-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.output-text {
    padding: var(--space-6);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    line-height: 1.7;
    color: var(--gray-800);
    min-height: 150px;
    margin-bottom: var(--space-4);
}

/* Action Buttons */
.output-actions {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
    margin-bottom: var(--space-8);
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    color: var(--gray-700);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.action-btn:hover {
    background: var(--gray-50);
    border-color: var(--brand-primary);
    color: var(--brand-primary);
}

.action-btn svg {
    width: 16px;
    height: 16px;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.metric-card {
    padding: var(--space-4);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    text-align: center;
}

.metric-label {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.metric-value {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--brand-primary);
    font-variant-numeric: tabular-nums;
}

/* Key Points */
.keypoints-section {
    padding-top: var(--space-6);
    border-top: 1px solid var(--gray-200);
}

.keypoints-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.keypoints-icon {
    width: 4px;
    height: 4px;
    flex-shrink: 0;
}

.keypoints-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.keypoint-item {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    line-height: 1.6;
}

.keypoint-bullet {
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    background: var(--brand-primary);
    border-radius: 50%;
    margin-top: 8px;
}

/* ============================================
   Footer - Minimal
   ============================================ */
footer {
    background: var(--white);
    border-top: 1px solid var(--gray-100);
    padding: var(--space-8) 0;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.footer-status {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    background: var(--success);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    position: relative;
}

.footer-status::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--white);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.footer-links {
    display: flex;
    gap: var(--space-6);
    align-items: center;
}

.footer-link {
    color: var(--gray-600);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color var(--transition-base);
}

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

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }

    .doc-types {
        justify-content: center;
    }

    .complexity-options {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .output-actions {
        flex-direction: column;
    }

    .action-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .input-card,
    .output-card {
        padding: var(--space-4);
    }

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

/* ============================================
   Utility Classes
   ============================================ */
.hidden {
    display: none !important;
}

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

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

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print Styles */
@media print {
    header,
    footer,
    .input-card,
    .output-actions {
        display: none;
    }

    .output-text {
        background: none;
        border: 1px solid #000;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* ============================================
   Panel System - About & Privacy
   ============================================ */
.info-panel {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
}

.info-panel.active {
    opacity: 1;
    visibility: visible;
}

.panel-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    max-width: 800px;
    max-height: 90vh;
    width: 90%;
    margin: var(--space-4);
    position: relative;
    transform: translateY(20px);
    transition: transform var(--transition-slow);
    overflow: hidden;
}

.info-panel.active .panel-content {
    transform: translateY(0);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6) var(--space-6) 0;
    border-bottom: 1px solid var(--gray-100);
    margin-bottom: var(--space-6);
}

.panel-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.panel-title svg {
    width: 24px;
    height: 24px;
    color: var(--brand-primary);
}

.panel-close {
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.panel-close:hover {
    background: var(--gray-100);
    color: var(--gray-600);
}

.panel-close svg {
    width: 24px;
    height: 24px;
}

.panel-body {
    padding: 0 var(--space-6) var(--space-6);
    overflow-y: auto;
    max-height: calc(90vh - 120px);
}

.panel-section {
    margin-bottom: var(--space-8);
}

.panel-section h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.panel-section h3 svg {
    width: 20px;
    height: 20px;
    color: var(--brand-primary);
}

.panel-section p {
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.panel-section ul {
    list-style: none;
    padding-left: 0;
}

.panel-section li {
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: var(--space-2);
    padding-left: var(--space-4);
    position: relative;
}

.panel-section li::before {
    content: '•';
    color: var(--brand-primary);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-4);
    margin: var(--space-4) 0;
}

.feature-card {
    padding: var(--space-4);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.feature-card h4 {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.feature-card h4 svg {
    width: 18px;
    height: 18px;
    color: var(--brand-primary);
}

.feature-card p {
    font-size: var(--text-sm);
    color: var(--gray-600);
    margin: 0;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin: var(--space-4) 0;
}

.tech-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    background: var(--brand-primary);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 500;
}

.tech-tag svg {
    width: 14px;
    height: 14px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin: var(--space-4) 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.contact-item svg {
    width: 18px;
    height: 18px;
    color: var(--brand-primary);
}

.contact-item span {
    font-size: var(--text-sm);
    color: var(--gray-700);
}

.panel-cta {
    text-align: center;
    padding: var(--space-6);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--brand-primary);
    margin: var(--space-6) 0;
}

.panel-cta h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
}

.panel-cta p {
    color: var(--gray-600);
    margin-bottom: var(--space-4);
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    background: var(--brand-gradient);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.cta-btn svg {
    width: 16px;
    height: 16px;
}

/* Panel responsive design */
@media (max-width: 768px) {
    .panel-content {
        width: 95%;
        max-height: 95vh;
        margin: var(--space-2);
    }

    .panel-header {
        padding: var(--space-4) var(--space-4) 0;
        margin-bottom: var(--space-4);
    }

    .panel-body {
        padding: 0 var(--space-4) var(--space-4);
    }

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

    .contact-info {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Modal Styles
   ============================================ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.modal.hidden {
    display: none;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    max-width: 600px;
    max-height: 90vh;
    width: 100%;
    overflow: hidden;
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6) var(--space-6) var(--space-4);
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h2 {
    margin: 0;
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--gray-900);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--gray-500);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    line-height: 1;
}

.modal-close:hover {
    background: var(--gray-100);
    color: var(--gray-700);
}

.modal-body {
    padding: var(--space-6);
    overflow-y: auto;
    max-height: calc(90vh - 80px);
}

.modal-body h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin: var(--space-6) 0 var(--space-3) 0;
}

.modal-body h3:first-child {
    margin-top: 0;
}

.modal-body p {
    color: var(--gray-700);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.modal-body ul {
    color: var(--gray-700);
    padding-left: var(--space-5);
    margin-bottom: var(--space-4);
}

.modal-body li {
    margin-bottom: var(--space-2);
    line-height: 1.6;
}

.version-info {
    background: var(--gray-50);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    margin-top: var(--space-6);
}

.version-info p {
    margin: 0;
    font-size: var(--text-sm);
}

.version-info p:not(:last-child) {
    margin-bottom: var(--space-2);
}

.last-updated {
    margin-top: var(--space-6) !important;
    font-size: var(--text-sm) !important;
    color: var(--gray-500) !important;
}

/* Mobile Modal Adjustments */
@media (max-width: 768px) {
    .modal {
        padding: var(--space-2);
    }

    .modal-content {
        max-height: 95vh;
    }

    .modal-header,
    .modal-body {
        padding: var(--space-4);
    }

    .modal-body {
        max-height: calc(95vh - 70px);
    }
}

/* Availability Link with Pulsating Effect */
.availability-link {
    color: var(--brand-primary);
    cursor: pointer;
    text-decoration: underline;
    position: relative;
    animation: pulse 2s infinite;
    font-weight: 600;
}

.availability-link:hover {
    color: var(--brand-secondary);
    text-decoration: none;
}

@keyframes pulse {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.05);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* AI Status Info */
.ai-status-info {
    background: var(--gray-50);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    margin: var(--space-4) 0;
    border-left: 4px solid var(--brand-primary);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.status-indicator .status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-400);
    animation: statusPulse 2s infinite;
}

.status-indicator.available .status-dot {
    background: var(--success);
}

.status-indicator.unavailable .status-dot {
    background: var(--warning);
}

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