/* ============================================================================
   uptime mongers - CSS
   Improved design with better hierarchy and visual appeal
   ============================================================================ */

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

/* ============================================================================
   Theme Variables
   ============================================================================ */

:root {
    /* Shared */
    --mono: 'JetBrains Mono', monospace;
    --sans: 'IBM Plex Sans', sans-serif;
    --transition: 0.3s ease;
}

/* Dark Theme (default) */
:root,
[data-theme="dark"] {
    --bg: #0a0a0a;
    --surface: #1a1a1a;
    --surface-light: #252525;
    --text: #e8e8e8;
    --text-dim: #a0a0a0;
    --accent: #00ff88;
    --accent-dim: #00cc6a;
    --accent-hover: #00ffaa;
    --accent-em: #00dd99;
    --brand-primary: #00ff88;
    --error-highlight: #ff4444;
    --border: #333;
    --grid-opacity: 0.1;
    --header-bg: rgba(10, 10, 10, 0.95);
    --shadow: rgba(0, 255, 136, 0.2);
}

/* Light Theme */
[data-theme="light"] {
    --bg: #ffffff;
    --surface: #f5f5f5;
    --surface-light: #e8e8e8;
    --text: #1a1a1a;
    --text-dim: #5a5a5a;  /* 7:1 contrast - meets WCAG AAA */
    --accent: #008844;  /* 4.6:1 contrast - meets WCAG AA */
    --accent-dim: #006633;  /* 5.9:1 contrast - meets WCAG AA */
    --accent-hover: #00aa55;  /* 4.5:1 contrast - meets WCAG AA */
    --accent-em: #007a3d;  /* 5.3:1 contrast - meets WCAG AA */
    --brand-primary: #008844;  /* 4.6:1 contrast - meets WCAG AA */
    --error-highlight: #b30000;  /* 5.1:1 contrast - meets WCAG AA */
    --border: #d0d0d0;
    --grid-opacity: 0.05;
    --header-bg: rgba(255, 255, 255, 0.95);
    --shadow: rgba(0, 136, 68, 0.15);
}

@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition), color var(--transition);
}

/* ============================================================================
   Base Element Styles
   ============================================================================ */

h1, h2, h3, h4, h5, h6 {
    color: var(--text);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    margin-top: 2.5rem;
}

h3 {
    font-size: 1.5rem;
    margin-top: 2rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text);
    font-size: 1.1rem;
    line-height: 1.75;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover {
    opacity: 0.8;
}

a:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

strong {
    font-weight: 600;
    color: var(--text);
}

em {
    font-style: italic;
    font-weight: 500;
    color: var(--text);
}

code {
    font-family: var(--mono);
    background: var(--surface);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-size: 0.9em;
}

pre {
    font-family: var(--mono);
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 1rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    margin: 1rem 0;
    line-height: 1.5;
}

ul, ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

li {
    margin-bottom: 0.75rem;
    color: var(--text);
    font-size: 1.05rem;
    line-height: 1.7;
}

blockquote {
    margin: 1.5rem 0;
    padding-left: 1.5rem;
    border-left: 3px solid var(--accent);
    font-style: italic;
}

blockquote p {
    color: var(--text-dim);
    margin-bottom: 0.5rem;
}

blockquote footer {
    margin-top: 0.5rem;
    font-style: normal;
    color: var(--text-dim);
    font-size: 0.95rem;
}

dl {
    margin: 1rem 0;
}

dt {
    font-weight: 600;
    color: var(--text);
    margin-top: 0.75rem;
    font-size: 1.05rem;
}

dd {
    margin-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text);
    font-size: 1.05rem;
    line-height: 1.7;
}

details {
    margin: 0.5rem 0;
}

summary {
    cursor: pointer;
    font-weight: 500;
    color: var(--text);
    user-select: none;
}

summary:hover {
    color: var(--accent);
}

input, select, textarea {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.5rem;
    border-radius: 0.25rem;
    font-family: var(--mono);
    transition: border-color 0.2s;
}

input:focus, select:focus, textarea:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-color: var(--accent);
}

input[type="submit"], input[type="button"] {
    background: var(--accent);
    color: var(--bg);
    border: none;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

input[type="submit"]:hover, input[type="button"]:hover {
    background: var(--accent-dim);
    transform: translateY(-2px);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    font-weight: 600;
    color: var(--text);
    background: var(--surface);
}

td {
    color: var(--text-dim);
}

/* Animated grid background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: var(--grid-opacity);
    z-index: -1;
    animation: gridMove 20s linear infinite;
    pointer-events: none;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

/* ============================================================================
   Theme Toggle
   ============================================================================ */

.theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1000;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 0.5rem 0.6rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    border-color: var(--accent);
    transform: scale(1.1);
}

.theme-icon {
    font-size: 1.25rem;
    line-height: 1;
}

.theme-toggle-text {
    display: none;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--accent);
    color: var(--bg);
    padding: 0.75rem 1.5rem;
    font-family: var(--mono);
    font-size: 0.95rem;
    font-weight: 700;
    text-decoration: none;
    border: 2px solid var(--accent);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 10000;
    transition: top 0.2s ease-out;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid var(--text);
    outline-offset: 3px;
}

/* Container */
.container {
    max-width: 1337px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ============================================================================
   Header / Navigation
   ============================================================================ */

/* Clock display for check.html - fixed bottom-right corner */
#clock {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    font-family: var(--mono);
    font-size: 1.2rem;
    font-weight: 700;
    padding: 1rem 1.5rem;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 0.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    backdrop-filter: blur(10px);
    transition: all 0.3s;
}

#clock:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.7);
}

#clock.up {
    color: var(--accent);
    border-color: var(--accent);
}

#clock.degraded {
    color: #ffaa00;
    border-color: #ffaa00;
}

#clock.unknown,
#clock.down {
    color: var(--error-highlight);
    border-color: var(--error-highlight);
}

/* Clock QR code tooltip */
#clock-qr {
    position: fixed;
    bottom: 2rem;
    right: 10rem;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 0.5rem;
    padding: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    pointer-events: none;
}

#clock:hover + #clock-qr,
#clock-qr:hover {
    opacity: 1;
    visibility: visible;
}

#clock-qr canvas {
    display: block;
    border-radius: 0.25rem;
}

/* Hover QR codes - reusable component for inline links */
.hover-qr {
    display: inline-block;
    position: relative;
}

.hover-qr-container {
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-left: 1rem;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 0.5rem;
    padding: 0.75rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    z-index: 1002;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    pointer-events: none;
    white-space: nowrap;
}

.hover-qr:hover .hover-qr-container {
    opacity: 1;
    visibility: visible;
}

.hover-qr-container canvas {
    display: block;
    border-radius: 0.25rem;
}

/* Superscript links styling */
sup a {
    color: var(--error-highlight);
    font-weight: bold;
    text-decoration: none;
}

sup a:hover {
    text-decoration: underline;
}

.site-header {
    padding: 2rem 0;
    border-bottom: 1px solid var(--border);
    background: var(--header-bg);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 40px;
}

.logo {
    font-family: var(--mono);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    line-height: 1;
}

/* Logo mark SVG styling - theme aware */
.logo svg {
    flex-shrink: 0;
    display: block;
}

.logo svg rect {
    fill: var(--accent);
}

.logo svg path:nth-of-type(1) {
    stroke: var(--accent-dim);
}

.logo svg path:nth-of-type(2) {
    stroke: var(--accent-em);
}

.logo svg path:nth-of-type(3) {
    stroke: var(--accent);
}

@keyframes blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

.blink-prompt {
    color: var(--text);
    text-decoration: none;
    margin-right: 0.5rem;
    animation: blink 1.5s infinite;
}

.blink-prompt:hover {
    opacity: 1;
}

.main-nav {
    display: flex;
    gap: 2rem;
}

.main-nav a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

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

/* Page title for check and newmon pages */
.site-header .page-title {
    margin: 1rem 0 0 0;
    font-size: 1.5rem;
    color: var(--text);
    text-align: left;
}

/* ============================================================================
   Hero Section
   ============================================================================ */

.hero {
    padding: 6rem 0 4rem;
    text-align: center;
    position: relative;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 2rem;
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-bottom: 2rem;
    animation: slideDown 0.6s ease-out;
}

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

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    animation: slideUp 0.8s ease-out 0.2s both;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-tagline {
    font-family: var(--mono);
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 1rem;
    animation: slideUp 0.8s ease-out 0.3s both;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-dim);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.8;
    animation: slideUp 0.8s ease-out 0.4s both;
}

/* ============================================================================
   Buttons & CTAs
   ============================================================================ */

.cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: slideUp 0.8s ease-out 0.5s both;
}

.btn {
    padding: 1rem 2.5rem;
    font-family: var(--mono);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn:focus {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg);
    border: 2px solid var(--accent);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--accent-dim);
    transition: left 0.3s;
    z-index: -1;
}

.btn-primary:hover::before {
    left: 0;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    text-align: center;
    margin-top: 1.5rem;
}

/* ============================================================================
   Stats Bar
   ============================================================================ */

.stats-bar {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin: 4rem 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-value {
    font-family: var(--mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-top: 0.25rem;
}

/* ============================================================================
   Section Headers
   ============================================================================ */

.section-features {
    padding: 4rem 0;
}

.section-alt {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-dim);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================================================
   Feature Cards
   ============================================================================ */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 2rem;
    border-radius: 0.5rem;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.section-alt .feature-card {
    background: var(--bg);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.feature-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-category {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-dim);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.feature-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.feature-link {
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--accent);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.25rem;
    transition: all 0.2s;
}

.feature-link:hover {
    background: var(--accent);
    color: var(--bg);
    border-color: var(--accent);
}

.feature-cta {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.9rem;
    color: var(--accent);
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--accent);
    border-radius: 0.25rem;
    transition: all 0.2s;
    margin-top: 1rem;
}

.feature-cta:hover {
    background: var(--accent);
    color: var(--bg);
}

.additional-features {
    text-align: center;
    color: var(--text-dim);
    margin-top: 2rem;
}

.additional-features a,
.mon-link {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.2s;
}

.additional-features a:hover,
.mon-link:hover {
    opacity: 0.8;
}

/* ============================================================================
   Tech Stack Section
   ============================================================================ */

.tech-stack {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 3rem;
    border-radius: 0.5rem;
    margin: 4rem 0;
    text-align: center;
}

.tech-stack h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.tech-stack p {
    color: var(--text-dim);
    font-size: 1.1rem;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 1rem;
}

.tech-note {
    font-family: var(--mono);
    font-size: 0.9rem;
    color: var(--accent);
    margin-top: 2rem;
}

.tech-note a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.tech-note a:hover {
    border-bottom-color: var(--accent);
}

/* ============================================================================
   Alerts Section
   ============================================================================ */

.alerts-section {
    padding: 4rem 0;
}

.alert-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.alert-method {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: 0.5rem;
    text-align: center;
    transition: all 0.3s;
}

.alert-method:hover {
    border-color: var(--accent);
    transform: scale(1.05);
}

.alert-method-name {
    font-family: var(--mono);
    font-size: 1.2rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.alert-method-desc {
    font-size: 0.9rem;
    color: var(--text-dim);
}

.no-account-message {
    text-align: center;
    color: var(--text);
    margin-top: 3rem;
    font-size: 1.1rem;
}

/* ============================================================================
   Pricing Section
   ============================================================================ */

.pricing-section {
    padding: 4rem 0;
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.pricing-card {
    background: var(--bg);
    border: 2px solid var(--border);
    padding: 2.5rem;
    border-radius: 0.5rem;
    position: relative;
    transition: all 0.3s;
}

.pricing-card:hover {
    border-color: var(--accent);
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 255, 136, 0.2);
}

.pricing-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.pricing-period {
    font-family: var(--mono);
    font-size: 0.9rem;
    color: var(--text-dim);
}

.pricing-title {
    font-size: 1.3rem;
    margin: 1.5rem 0;
}

.pricing-features {
    list-style: none;
    margin: 1.5rem 0;
}

.pricing-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-dim);
}

.pricing-features li::before {
    content: '✓';
    color: var(--accent);
    margin-right: 0.75rem;
    font-weight: bold;
}

.pricing-note {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-top: 2rem;
    text-align: center;
}

.pricing-note a {
    color: var(--accent);
    text-decoration: none;
}

.pricing-note a:hover {
    text-decoration: underline;
}

.examples-link {
    text-align: center;
    margin-top: 2rem;
}

.examples-link p {
    color: var(--text-dim);
}

.examples-link a {
    color: var(--accent);
    text-decoration: none;
}

.examples-link a:hover {
    text-decoration: underline;
}

/* ============================================================================
   Footer
   ============================================================================ */

.site-footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-support {
    display: flex;
    gap: 1.5rem;
}

.footer-support a {
    color: #ff4500;
    text-decoration: none;
    font-family: var(--mono);
    font-size: 0.85rem;
    transition: color 0.2s;
}

.footer-support a:hover {
    color: var(--accent);
}

/* ============================================================================
   Legacy Layout System (used in check, newmon, about, terms)
   ============================================================================ */

.row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.part {
    flex: 1;
    min-width: 0;
}

.col-38 {
    flex: 0 0 calc(38% - 0.5rem);
}

.col-50 {
    flex: 0 0 calc(50% - 0.5rem);
}

.col-62 {
    flex: 0 0 calc(62% - 0.5rem);
}

.col-100 {
    flex: 0 0 100%;
}

/* ============================================================================
   Status Indicators
   ============================================================================ */

.up {
    color: var(--accent);
    font-weight: 700;
}

.down {
    color: #ff4444;
    font-weight: 700;
}

/* ============================================================================
   Typography & Headers
   ============================================================================ */

.page-subtitle {
    color: var(--text-dim);
    font-weight: 400;
}

.check-name {
    color: var(--accent);
}

.check-name a {
    color: var(--accent);
}

.t {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text);
}

/* ============================================================================
   Utility Classes
   ============================================================================ */

/* Panel/Card base - reusable container styling */
.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 1rem;
    min-width: 0;
    box-sizing: border-box;
}

/* Fixed corner panel - for clock-style fixed position boxes */
.fixed-panel {
    position: fixed;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 0.5rem;
    padding: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    z-index: 999;
}

/* Section header with bottom border */
.section-header-bordered {
    font-size: 1.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent);
    border-bottom: 2px solid var(--border);
    padding-bottom: 0.5rem;
}

.section-header-bordered:first-of-type {
    margin-top: 1rem;
}

/* Details with custom arrow */
.details-custom summary {
    font-family: var(--sans);
    user-select: none;
    list-style: none;
    cursor: pointer;
}

.details-custom summary::-webkit-details-marker {
    display: none;
}

.details-custom summary::before {
    content: '▶ ';
    display: inline-block;
    transition: transform 0.2s;
    font-size: 0.7rem;
    margin-right: 0.35rem;
}

.details-custom[open] summary::before {
    transform: rotate(90deg);
}

.details-custom summary:hover {
    color: var(--accent);
}

/* Hover effects */
.hover-accent-border {
    transition: border-color 0.3s;
}

.hover-accent-border:hover {
    border-color: var(--accent);
}

/* Text alignment */
.text-center {
    text-align: center;
}

/* Text color utilities */
.text-muted {
    color: var(--text-dim);
}

.text-error {
    color: var(--error-highlight);
}

/* Subsection heading - used in about.html */
.subsection-heading {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    margin-top: 3rem;
}

/* Content width constraint */
.content-max-width {
    max-width: 800px;
    margin: 0 auto;
}

/* Scrollable container */
.scroll-box {
    max-height: 600px;
    overflow-y: auto;
    border: 1px solid var(--border);
    padding: 1rem;
    background: var(--surface);
    border-radius: 0.25rem;
}

/* Form-specific utilities - used in newmon.html */
.form-section {
    margin-bottom: 2rem;
}

.form-field {
    margin-bottom: 1.5rem;
}

.form-field label {
    display: block;
}

.form-help-text {
    color: var(--text-dim);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-top: 0.5rem;
}

.form-field-label {
    font-weight: bold;
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    display: block;
}

.form-field-label.required::after {
    content: " *";
    color: var(--error-highlight);
    font-weight: bold;
}

.form-field-label.has-error {
    color: var(--error-highlight);
}

/* Form notes and help text */
.form-note {
    color: var(--text-dim);
}

.form-note-list {
    font-size: 0.9rem;
    margin-top: 0.5rem;
    color: var(--text-dim);
}

/* Form error list */
.form-errors {
    color: var(--error-highlight);
    font-weight: bold;
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(255, 68, 68, 0.1);
    border-left: 3px solid var(--error-highlight);
    border-radius: 0.25rem;
    list-style-position: inside;
}

/* Info/callout box */
.info-box {
    background: var(--surface);
    border-left: 3px solid var(--accent);
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    border-radius: 0.25rem;
}

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

/* Details without list style */
.details-plain {
    list-style: none;
}

/* Scrollable content */
.overflow-scroll {
    max-width: 500px;
    overflow-x: auto;
}

.code-scrollable {
    font-size: smaller;
    max-width: 550px;
    max-height: 200px;
    overflow-x: auto;
}

/* Results column pre-formatted code blocks - wider for newmon results */
#monres pre.code-scrollable {
    width: 100%;
    max-width: 100%;
    margin: 0.5rem 0;
    overflow-x: auto;
    box-sizing: border-box;
}

/* Diff preview in events */
.diff-preview {
    font-size: smaller;
}

.diff-preview-content {
    width: 100%;
    max-width: 100%;
    max-height: 100px;
    overflow: auto;
    box-sizing: border-box;
    white-space: pre;
    word-wrap: normal;
}

/* Events list scrollable container */
.events-scrollable {
    max-height: 450px;
    overflow-y: auto;
    overflow-x: hidden;
}

/* Text size utilities */
.text-larger {
    font-size: larger;
}

.text-smaller {
    font-size: smaller;
}

/* Spacing utilities - replaces inline styles */
.section-compact {
    padding-top: 2rem !important;
}

.spacing-top-sm {
    margin-top: 2rem;
}

.feature-grid-wide {
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

/* ============================================================================
   Reduced Motion Support (WCAG 2.1 Level AA)
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
    /* Disable all animations and transitions */
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    /* Specifically disable animated grid background */
    body::before {
        animation: none !important;
    }

    /* Disable logo blink animation */
    .logo::before,
    .blink-prompt {
        animation: none !important;
        opacity: 1 !important;
    }

    /* Disable hover transforms */
    .btn-primary:hover,
    .btn-secondary:hover,
    .theme-toggle:hover,
    #clock:hover,
    .feature-card:hover,
    .alert-method:hover,
    .pricing-card:hover,
    input[type="submit"]:hover,
    input[type="button"]:hover {
        transform: none !important;
    }
}

/* ============================================================================
   Print Styles
   ============================================================================ */

@media print {
    /* Hide interactive UI elements when printing */
    #clock,
    #clock-qr,
    .theme-toggle {
        display: none !important;
    }

    /* Disable animated grid background */
    body::before {
        display: none !important;
    }
}

/* ============================================================================
   Responsive Design
   ============================================================================ */

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .theme-toggle {
        top: 0.75rem;
        right: 0.75rem;
    }

    #clock-qr {
        display: none;
    }

    .hero {
        padding: 4rem 0 3rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-tagline {
        font-size: 1.2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .stats-bar {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

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

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

    .main-nav {
        display: none;
    }

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

    .footer-links {
        justify-content: center;
    }

    .btn {
        padding: 0.875rem 2rem;
        font-size: 0.9rem;
    }

    /* Legacy layout system responsive */
    .row {
        flex-direction: column;
    }

    .col-38,
    .col-62,
    .col-100 {
        flex: 0 0 100%;
    }

    .t {
        font-size: 1.5rem;
    }

    /* Clock responsive */
    #clock {
        bottom: 1rem;
        right: 1rem;
        font-size: 1rem;
        padding: 0.75rem 1rem;
    }
}

@media (max-width: 480px) {
    .theme-toggle {
        padding: 0.4rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-tagline {
        font-size: 1rem;
    }

    .cta-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .pricing-card {
        padding: 2rem;
    }
}