/* --- 1. Design Tokens & 2026 Aesthetics --- */
:root {
  --font-base: 16px;
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --spacing-unit: 8px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Dark Theme Defaults (2026 Cyber-Wellness Vibe) */
  --primary: #3b82f6;
  --primary-glow: rgba(59, 130, 246, 0.4);
  --secondary: #8b5cf6;
  --background: #090d16;
  --surface: #111827;
  --surface-glass: rgba(17, 24, 39, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
}

/* Light Mode Overrides */
html.light {
  --background: #f8fafc;
  --surface: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.8);
  --border-color: rgba(0, 0, 0, 0.08);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --primary-glow: rgba(59, 130, 246, 0.2);
}

/* --- 2. Base & Reset --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    font-size: var(--font-base);
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    letter-spacing: -0.02em;
}

/* --- 3. Utility Components & Gradients --- */
.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.glass-panel {
    background: var(--surface-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

/* --- 4. Navigation Bar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-normal);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo a {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-menu ul {
    list-style: none;
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.icon-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.icon-btn:hover {
    border-color: var(--primary);
    background: var(--primary-glow);
}

/* Theme toggle icon switcher */
html.dark .sun-icon { display: block; }
html.dark .moon-icon { display: none; }
html.light .sun-icon { display: none; }
html.light .moon-icon { display: block; }

/* --- 5. Hero Section --- */
.hero-section {
    position: relative;
    min-height: 95vh;
    display: flex;
    align-items: center;
    text-align: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 350px;
    background: radial-gradient(circle, var(--primary-glow) 0%, rgba(0,0,0,0) 70%);
    z-index: -1;
    filter: blur(60px);
}

.hero-content {
    max-width: 840px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 16px;
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 8px #10b981;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-section h2 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-section .subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 680px;
}

.hero-cta-group {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

/* --- Buttons --- */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.primary-cta {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.primary-cta:hover {
    transform: translateY(-2px);
    filter: brightness(1.1);
}

.secondary-cta {
    background: var(--surface);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.secondary-cta:hover {
    border-color: var(--primary);
    background: var(--surface-glass);
}

.sm-btn {
    padding: 8px 18px;
    font-size: 0.9rem;
}

/* --- 6. Content & Feature Sections --- */
.content-section {
    padding: 120px 0;
}

.about-section .text-block h3 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.about-section .text-block p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 1.05rem;
}

.image-wrapper img {
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-normal);
}

.image-wrapper img:hover {
    transform: scale(1.02);
}

/* --- Events Cards --- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h3 {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.section-header p {
    color: var(--text-secondary);
}

.event-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    position: relative;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.event-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.card-tag {
    align-self: flex-start;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    border-radius: 20px;
    margin-bottom: 16px;
}

.card-tag.beginner { background: rgba(16, 185, 129, 0.1); color: #10b981; }
.card-tag.endurance { background: rgba(139, 92, 246, 0.1); color: var(--secondary); }

.event-card h4 {
    font-size: 1.35rem;
    margin-bottom: 16px;
}

.event-meta {
    margin-bottom: 24px;
    flex-grow: 1;
}

.event-meta p {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.event-meta i {
    width: 16px;
    height: 16px;
    color: var(--primary);
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--text-primary);
    font-weight: 600;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.card-link i {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

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

.card-link:hover i {
    transform: translateX(4px);
}

/* --- Telemetry Dashboard Styles --- */
.telemetry-dashboard {
    max-width: 1000px;
    margin: 0 auto;
    border-radius: var(--radius-md);
    overflow: hidden;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 0;
    background: var(--surface);
    border: 1px solid var(--border-color);
}

.telemetry-map-container {
    position: relative;
    border-right: 1px solid var(--border-color);
    background: #000;
}

.telemetry-map {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.map-overlay {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    font-weight: 600;
}

.telemetry-stats {
    display: flex;
    flex-direction: column;
}

.stat-card {
    padding: 40px 30px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex: 1;
}

.stat-card:last-child {
    border-bottom: none;
}

.stat-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    line-height: 1;
}

.stat-value.text-accent {
    color: var(--primary);
    font-size: 1.8rem;
}

@media (max-width: 768px) {
    .telemetry-dashboard {
        grid-template-columns: 1fr;
    }
    .telemetry-map-container {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        min-height: 250px;
    }
    .stat-card {
        padding: 24px 20px;
    }
}

/* --- Call to Action Banner --- */
.cta-cta {
    padding: 80px 0 140px;
}

.cta-card {
    padding: 80px 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    background: linear-gradient(135deg, var(--surface), rgba(59, 130, 246, 0.05));
    box-shadow: var(--shadow-lg);
}

.cta-card h3 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.cta-card p {
    color: var(--text-secondary);
    font-size: 1.15rem;
    margin-bottom: 32px;
}

/* --- Footer --- */
footer {
    background: var(--surface);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-col h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-col p {
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-size: 0.95rem;
}

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

.footer-col li {
    margin-bottom: 10px;
}

.footer-col li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-col li a:hover {
    color: var(--primary);
}

.social-icons {
    display: flex;
    gap: 16px;
}

.social-icons a {
    color: var(--text-secondary);
    background: var(--background);
    border: 1px solid var(--border-color);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.social-icons a:hover {
    color: var(--primary);
    border-color: var(--primary);
}

/* --- Responsive Adjustments --- */
@media (max-width: 968px) {
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .nav-menu {
        display: none;
    }
}

/* --- Theme Overrides for WalkTape Palette --- */
:root {
    --primary: #B2967D;
    --primary-glow: rgba(178, 150, 125, 0.4);
    --secondary: #E6BEAE;
    --background: #ECF8F8;
    --surface: #EEE4E1;
    --surface-glass: rgba(238, 228, 225, 0.8);
    --border-color: rgba(178, 150, 125, 0.3);
    --text-primary: #2d241d;
    --text-secondary: #5a4b3d;
}

html.dark {
    --background: #2d241d;
    --surface: #3a2e25;
    --surface-glass: rgba(58, 46, 37, 0.8);
    --text-primary: #ECF8F8;
    --text-secondary: #EEE4E1;
    --border-color: rgba(230, 190, 174, 0.2);
}

/* --- New CTA Cards Section --- */
.cta-cards-section .grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.cta-cards-section .cta-card {
    background: var(--surface);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal);
    border: 1px solid var(--border-color);
    padding: 0;
    display: block; /* For a tags */
    text-decoration: none;
}

.cta-cards-section .cta-card:hover {
    transform: translateY(-8px);
}

.cta-cards-section .cta-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
    border-radius: 0;
    box-shadow: none;
    border: none;
}

.cta-card-content {
    padding: 20px;
    text-align: center;
}

.cta-card-content h4 {
    color: var(--primary);
    font-size: 1.4rem;
    margin-bottom: 0;
}

/* --- Blog Section --- */
.blog-summary {
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    text-align: left;
    margin-bottom: 40px;
}

.blog-summary h3 {
    margin-bottom: 15px;
    color: var(--primary);
}

.blog-summary p {
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.blog-hero {
    width: 100%;
    height: 60vh;
    object-fit: cover;
    border-radius: 0;
    margin-top: 80px;
}

.blog-content {
    padding: 60px 0;
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.2rem;
    line-height: 1.8;
}

.blog-content p {
    margin-bottom: 20px;
}

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    padding: 40px;
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: var(--shadow-lg);
    transform: translateY(-20px);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
}

.modal-content h3 {
    margin-bottom: 20px;
    color: var(--primary);
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    background: var(--background);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
}

/* --- Evolva-Style Post Components --- */
.post-header-massive {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 800;
    text-transform: uppercase;
    line-height: 1.1;
    margin-bottom: 40px;
    letter-spacing: -0.03em;
}

.metadata-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 30px 0;
    margin-bottom: 60px;
}

.meta-item {
    display: flex;
    flex-direction: column;
}

.meta-item .meta-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
    margin-bottom: 8px;
    font-weight: 600;
}

.meta-item .meta-value {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
}

.post-split-layout {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}

.post-sidebar h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.post-body p {
    font-size: 1.15rem;
    margin-bottom: 24px;
    line-height: 1.8;
}

@media (max-width: 768px) {
    .post-split-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}