/* ============================================================
   SwissArmyTechTools — Design System
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg-primary:    #0a0a0f;
  --bg-secondary:  #0f0f1a;
  --bg-card:       rgba(255,255,255,0.03);
  --bg-card-hover: rgba(255,255,255,0.05);
  --bg-input:      rgba(0,0,0,0.35);

  --border:        rgba(255,255,255,0.08);
  --border-accent: rgba(0,255,136,0.3);

  --text-primary:  #f0f0f5;
  --text-secondary:#8892a4;
  --text-muted:    #555e6e;

  --accent:        #00ff88;
  --accent-dim:    rgba(0,255,136,0.12);
  --accent-cyan:   #00d4ff;

  --strength-1: #ff3860;
  --strength-2: #ff9f43;
  --strength-3: #ffd32a;
  --strength-4: #05c46b;
  --strength-5: #00ff88;

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'Courier New', Courier, 'Lucida Console', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-card: 0 4px 32px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 20px rgba(0,255,136,0.15);

  --transition: 0.2s ease;
  --max-width: 1100px;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-cyan); }
ul { list-style: none; }

/* ── Layout ─────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ── Header ─────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}

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

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.logo-icon svg { width: 16px; height: 16px; }

.main-nav { display: flex; align-items: center; }

/* ── Category list ──────────────────────────────────────────── */
.nav-categories {
  display: flex;
  align-items: center;
  gap: 0.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* ── Category wrapper ───────────────────────────────────────── */
.nav-category { position: relative; }

/* ── Category trigger button ────────────────────────────────── */
.nav-cat-btn {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.4rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  height: 32px;
  transition: color var(--transition), background var(--transition);
}

.nav-cat-btn:hover,
.nav-category:hover .nav-cat-btn,
.nav-category--open .nav-cat-btn {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
}

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

/* Active: current page is inside this category */
.nav-category--active > .nav-cat-btn {
  color: var(--accent);
}

.nav-category--active:hover > .nav-cat-btn,
.nav-category--active.nav-category--open > .nav-cat-btn {
  color: var(--accent);
  background: var(--accent-dim);
}

/* ── Chevron ────────────────────────────────────────────────── */
.nav-chevron {
  width: 10px;
  height: 6px;
  flex-shrink: 0;
  opacity: 0.45;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-category:hover .nav-chevron,
.nav-category--open .nav-chevron {
  transform: rotate(180deg);
  opacity: 0.85;
}

/* ── Dropdown panel ─────────────────────────────────────────── */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  min-width: 215px;
  list-style: none;
  margin: 0;
  padding: 0.4rem;
  background: rgba(13,13,22,0.98);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0,0,0,0.55), inset 0 1px 0 rgba(255,255,255,0.04);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 200;
  /* Hidden state */
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(-50%) translateY(-6px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
}

/* Invisible bridge so mouse can travel from button to panel */
.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 0;
  right: 0;
  height: 8px;
}

/* Visible state */
.nav-category:hover .nav-dropdown,
.nav-category--open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

/* Dropdown items */
.nav-dropdown li { margin: 0; padding: 0; }

.nav-dropdown a {
  display: flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition), background var(--transition);
}

.nav-dropdown a:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.07);
}

.nav-dropdown a.active {
  color: var(--accent);
  background: var(--accent-dim);
  font-weight: 600;
}

.nav-dropdown a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
  border-radius: var(--radius-sm);
}

/* Optional category label inside dropdown */
.nav-dropdown-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding: 0.35rem 0.75rem 0.2rem;
  pointer-events: none;
}

/* Divider between dropdown groups */
.nav-dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: 0.35rem 0.5rem;
}

/* ── Hamburger ──────────────────────────────────────────────── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  border-radius: var(--radius-sm);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle:hover span { background: var(--text-primary); }

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Breadcrumb ─────────────────────────────────────────────── */
.breadcrumb {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.breadcrumb li a { color: var(--text-secondary); }
.breadcrumb li a:hover { color: var(--accent); }

.breadcrumb li:last-child { color: var(--text-secondary); }

.breadcrumb-sep { color: var(--text-muted); }

/* ── Hero ───────────────────────────────────────────────────── */
.page-hero {
  padding: 2.5rem 0 1.5rem;
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 0.75rem;
  background: linear-gradient(135deg, var(--text-primary) 60%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-hero p {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

/* ── Cards ──────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}

/* ── Tool Card ──────────────────────────────────────────────── */
.tool-section { padding: 1.25rem 0 2rem; }

.tool-card {
  background: rgba(15,15,26,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

/* Password Display */
.password-output-wrap {
  padding: 1.5rem 1.5rem 1rem;
  border-bottom: 1px solid var(--border);
}

.password-display {
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--accent);
  padding: 1rem 1.25rem;
  min-height: 58px;
  word-break: break-all;
  line-height: 1.6;
  letter-spacing: 0.04em;
  user-select: all;
  transition: border-color var(--transition);
}

.password-display.is-error {
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-style: italic;
  letter-spacing: 0;
}

.password-display:focus-within { border-color: var(--accent); }

.output-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.875rem;
  flex-wrap: wrap;
}

/* Strength Meter */
.strength-wrap {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.strength-bar-container {
  flex: 1;
  min-width: 140px;
}

.strength-bar-track {
  height: 6px;
  background: rgba(255,255,255,0.07);
  border-radius: 3px;
  overflow: hidden;
}

.strength-bar-fill {
  height: 100%;
  border-radius: 3px;
  width: 0%;
  transition: width 0.35s ease, background-color 0.35s ease;
}

.strength-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.strength-label {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  min-width: 80px;
}

.entropy-display {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  white-space: nowrap;
}

/* Options Panel */
.options-panel {
  padding: 1.5rem;
}

/* Mode Toggle */
.mode-toggle {
  display: flex;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 3px;
  gap: 3px;
  margin-bottom: 1.5rem;
  width: fit-content;
}

.mode-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.02em;
}

.mode-btn.active {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--border-accent);
}

.mode-btn:hover:not(.active) { color: var(--text-primary); }

/* Length Slider */
.slider-row {
  margin-bottom: 1.25rem;
}

.slider-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
}

.slider-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.slider-value-input {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  width: 52px;
  text-align: center;
  padding: 0.2rem 0.4rem;
  transition: border-color var(--transition);
}

.slider-value-input:focus {
  outline: none;
  border-color: var(--border-accent);
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  outline: none;
  cursor: pointer;
  background: linear-gradient(
    to right,
    var(--accent) 0%,
    var(--accent) var(--fill-pct, 30%),
    rgba(255,255,255,0.1) var(--fill-pct, 30%),
    rgba(255,255,255,0.1) 100%
  );
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--bg-primary);
  box-shadow: 0 0 8px rgba(0,255,136,0.4);
  transition: transform var(--transition), box-shadow var(--transition);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--bg-primary);
  box-shadow: 0 0 8px rgba(0,255,136,0.4);
}

input[type="range"]:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 3px rgba(0,255,136,0.25);
}

/* Checkbox Options */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition);
  padding: 0.3rem 0;
  user-select: none;
}

.checkbox-label:hover { color: var(--text-primary); }

.checkbox-label input[type="checkbox"] {
  -webkit-appearance: none;
  appearance: none;
  width: 17px;
  height: 17px;
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: all var(--transition);
}

.checkbox-label input[type="checkbox"]:checked {
  background: var(--accent);
  border-color: var(--accent);
}

.checkbox-label input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 0px;
  width: 5px;
  height: 9px;
  border: 2px solid var(--bg-primary);
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
}

.checkbox-label input[type="checkbox"]:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0,255,136,0.25);
}

.checkbox-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 0.25rem;
}

/* Passphrase options */
.passphrase-opts { display: none; }
.passphrase-opts.visible { display: block; }
.password-opts.hidden { display: none; }

.select-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.select-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  min-width: 70px;
}

.styled-select {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.85rem;
  padding: 0.45rem 2rem 0.45rem 0.75rem;
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition);
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%238892a4' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
}

.styled-select:focus { border-color: var(--border-accent); }

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  letter-spacing: 0.02em;
  white-space: nowrap;
  text-decoration: none;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #00d4a8 100%);
  color: #0a0a0f;
  font-weight: 700;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0,255,136,0.3);
}

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

.btn-secondary {
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(255,255,255,0.15);
}

.btn-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.btn-copy.copied {
  background: rgba(5,196,107,0.15);
  color: var(--strength-4);
  border-color: rgba(5,196,107,0.3);
}

.btn:disabled,
.btn:disabled:hover {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ── Content Sections ───────────────────────────────────────── */
.content-section {
  padding: 3.5rem 0;
  border-top: 1px solid var(--border);
}

.content-section h2 {
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.content-section p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  max-width: 72ch;
}

.content-section p:last-child { margin-bottom: 0; }

.content-section ul, .content-section ol {
  list-style: none;
  margin-bottom: 1rem;
}

.content-section li {
  color: var(--text-secondary);
  padding: 0.3rem 0 0.3rem 1.4rem;
  position: relative;
  max-width: 72ch;
}

.content-section li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.content-section ol { counter-reset: item; }
.content-section ol li { counter-increment: item; }
.content-section ol li::before {
  content: counter(item) '.';
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-mono);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.callout {
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin: 1.25rem 0;
}

.callout p {
  color: var(--text-primary);
  font-size: 0.9rem;
  margin: 0;
}

/* ── FAQ ────────────────────────────────────────────────────── */
.faq-list { display: flex; flex-direction: column; gap: 0.5rem; }

details.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}

details.faq-item:hover { border-color: rgba(255,255,255,0.14); }
details.faq-item[open] { border-color: var(--border-accent); }

summary.faq-question {
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: color var(--transition);
}

summary.faq-question::-webkit-details-marker { display: none; }
summary.faq-question:hover { color: var(--accent); }

.faq-icon {
  font-size: 1.1rem;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform var(--transition);
}

details[open] .faq-icon { transform: rotate(45deg); color: var(--accent); }

.faq-answer {
  padding: 0 1.25rem 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--border);
}

.faq-answer p + p { margin-top: 0.6rem; }

/* ── Related Tools ──────────────────────────────────────────── */
.related-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

.related-tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-decoration: none;
  color: var(--text-primary);
  transition: all var(--transition);
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
}

.related-tool-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.related-tool-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  line-height: 1;
  margin-top: 0.1rem;
}

.related-tool-name {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.related-tool-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ── Homepage Grid ──────────────────────────────────────────── */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.tool-grid-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-decoration: none;
  color: var(--text-primary);
  transition: all var(--transition);
}

.tool-grid-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  color: var(--text-primary);
}

.tool-grid-icon {
  font-size: 2rem;
  margin-bottom: 0.875rem;
  line-height: 1;
}

.tool-grid-name {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.tool-grid-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  margin-top: 2rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--text-muted);
}

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

.footer-copy {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: right;
}

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

.text-accent { color: var(--accent); }
.mt-sm { margin-top: 0.5rem; }
.mt-md { margin-top: 1rem; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  /* ── Mobile nav panel ──────────────────────────────────────── */
  .main-nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(10,10,15,0.98);
    border-bottom: 1px solid var(--border);
    max-height: calc(100vh - 60px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    z-index: 99;
  }

  .main-nav.open { display: block; }

  .nav-categories {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.25rem 0 1rem;
  }

  /* Full-width tap target */
  .nav-cat-btn {
    width: 100%;
    justify-content: space-between;
    padding: 0.875rem 1.25rem;
    border-radius: 0;
    font-size: 0.875rem;
    font-weight: 600;
    height: auto;
    min-height: 48px;
    border-bottom: 1px solid transparent;
  }

  .nav-category--open .nav-cat-btn {
    border-bottom-color: var(--border);
    color: var(--text-primary);
    background: rgba(255,255,255,0.04);
  }

  .nav-chevron { width: 12px; height: 7px; }

  /* Accordion dropdown */
  .nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    background: rgba(0,0,0,0.2);
    border: none;
    border-radius: 0;
    border-bottom: 1px solid var(--border);
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    padding: 0;
    min-width: 0;
    /* Collapsed by default */
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .nav-category--open .nav-dropdown { max-height: 500px; }

  .nav-dropdown::before { display: none; }

  .nav-dropdown a {
    padding: 0.75rem 1.25rem 0.75rem 2rem;
    font-size: 0.875rem;
    border-radius: 0;
    white-space: normal;
    min-height: 44px;
  }

  .nav-dropdown a.active {
    border-left: 3px solid var(--accent);
    padding-left: calc(2rem - 3px);
  }

  .nav-dropdown-label { display: none; }
  .nav-dropdown-divider { display: none; }

  .nav-toggle { display: flex; }
  .site-header { position: relative; }

  .page-hero { padding: 1.75rem 0 1rem; }

  .card, .tool-card { border-radius: var(--radius-md); }

  .strength-wrap { flex-direction: column; align-items: flex-start; gap: 0.6rem; }

  .strength-bar-container { width: 100%; }

  .two-col { grid-template-columns: 1fr; gap: 1rem; }

  .footer-inner { grid-template-columns: 1fr; text-align: center; }
  .footer-copy { text-align: center; }
  .footer-links { justify-content: center; }
}

@media (max-width: 480px) {
  .options-panel { padding: 1.25rem; }
  .password-output-wrap { padding: 1.25rem 1.25rem 0.875rem; }
  .checkbox-grid { grid-template-columns: 1fr 1fr; }
  .output-actions { flex-direction: column; }
  .output-actions .btn { justify-content: center; }
}

/* ============================================================
   Subnet Calculator
   ============================================================ */

/* ── Form ───────────────────────────────────────────────────── */
.subnet-form {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.subnet-input-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.subnet-ip-input {
  flex: 1;
  min-width: 160px;
  max-width: 230px;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 1rem;
  padding: 0.65rem 1rem;
  transition: border-color var(--transition);
}

.subnet-ip-input::placeholder { color: var(--text-muted); }
.subnet-ip-input:focus { outline: none; border-color: var(--border-accent); }
.subnet-ip-input.is-invalid { border-color: var(--strength-1) !important; }
.subnet-ip-input.is-valid   { border-color: rgba(0,255,136,0.4); }

.cidr-sep {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-muted);
  line-height: 1;
  user-select: none;
  flex-shrink: 0;
}

.cidr-prefix-input {
  width: 64px;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 0.65rem 0.5rem;
  text-align: center;
  transition: border-color var(--transition);
  -moz-appearance: textfield;
}

.cidr-prefix-input::-webkit-outer-spin-button,
.cidr-prefix-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.cidr-prefix-input:focus { outline: none; border-color: var(--border-accent); }

/* Quick-select prefix pills */
.cidr-quick-wrap {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.cidr-quick-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

.cidr-quick-btns {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
}

.cidr-quick-btn {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  cursor: pointer;
  transition: all var(--transition);
}

.cidr-quick-btn:hover,
.cidr-quick-btn.is-active {
  background: var(--accent-dim);
  border-color: var(--border-accent);
  color: var(--accent);
}

.subnet-error {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  color: var(--strength-1);
  min-height: 1.2em;
}

/* ── Results area ───────────────────────────────────────────── */
.results-container { padding: 1.5rem; }

.results-section { margin-bottom: 1.75rem; }
.results-section:last-child { margin-bottom: 0; }

.results-section-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding-bottom: 0.5rem;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.results-grid {
  display: flex;
  flex-direction: column;
}

.result-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.45rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.result-row:hover { background: rgba(255,255,255,0.03); }

.result-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  min-width: 170px;
  flex-shrink: 0;
}

.result-value {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-primary);
  flex: 1;
  word-break: break-all;
}

.result-value.is-accent { color: var(--accent); font-weight: 700; }

.result-copy-btn {
  background: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.2rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}

.result-copy-btn:hover {
  color: var(--accent);
  border-color: var(--border-accent);
  background: var(--accent-dim);
}

.result-copy-btn.copied {
  color: var(--strength-4);
  border-color: rgba(5,196,107,0.3);
  background: rgba(5,196,107,0.07);
}

/* Binary bit coloring */
.bit-net  { color: var(--accent-cyan); }
.bit-host { color: var(--accent); }

/* IP classification badges */
.badge-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 0.4rem 0.5rem;
}

.ip-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.65rem;
  border-radius: 20px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid;
}

.ip-badge-class    { color: var(--text-secondary); border-color: var(--border); background: rgba(255,255,255,0.04); }
.ip-badge-private  { color: var(--accent-cyan); border-color: rgba(0,212,255,0.3); background: rgba(0,212,255,0.08); }
.ip-badge-public   { color: var(--text-secondary); border-color: var(--border); background: transparent; }
.ip-badge-loopback { color: var(--strength-3); border-color: rgba(255,211,42,0.3); background: rgba(255,211,42,0.06); }
.ip-badge-link     { color: var(--strength-2); border-color: rgba(255,159,67,0.3); background: rgba(255,159,67,0.06); }
.ip-badge-multicast{ color: #c084fc; border-color: rgba(192,132,252,0.3); background: rgba(192,132,252,0.06); }
.ip-badge-special  { color: var(--text-muted); border-color: var(--border); background: transparent; }

/* Placeholder state */
.results-placeholder {
  text-align: center;
  padding: 2.5rem 1.5rem;
  color: var(--text-muted);
}

.results-placeholder svg { margin: 0 auto 0.875rem; opacity: 0.25; }
.results-placeholder p { font-size: 0.875rem; }

/* ── CIDR reference table ────────────────────────────────────── */
.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-top: 1.25rem;
}

.cidr-ref-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  min-width: 520px;
}

.cidr-ref-table thead th {
  text-align: left;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  white-space: nowrap;
}

.cidr-ref-table tbody tr {
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: background var(--transition);
}

.cidr-ref-table tbody tr:last-child { border-bottom: none; }
.cidr-ref-table tbody tr:hover { background: rgba(255,255,255,0.03); }

.cidr-ref-table td {
  padding: 0.55rem 1rem;
  color: var(--text-secondary);
  vertical-align: middle;
}

.cidr-ref-table td:first-child {
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.85rem;
}

.cidr-ref-table td:nth-child(2) {
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.cidr-ref-table td:nth-child(3),
.cidr-ref-table td:nth-child(4) {
  font-family: var(--font-mono);
  text-align: right;
}

.cidr-ref-table td:last-child { color: var(--text-muted); font-size: 0.78rem; }

.cidr-ref-table tr.row-highlight td { background: rgba(0,255,136,0.04); }
.cidr-ref-table tr.row-highlight td:first-child { color: var(--accent); }

/* ── Subnet responsive ───────────────────────────────────────── */
@media (max-width: 600px) {
  .subnet-ip-input { max-width: 100%; flex-basis: 100%; }
  .result-label { min-width: 130px; font-size: 0.75rem; }
  .result-value { font-size: 0.82rem; }
}

/* ============================================================
   What Is My IP
   ============================================================ */

/* ── Loading animation ──────────────────────────────────────── */
@keyframes ip-pulse {
  0%, 100% { opacity: 0.35; }
  50%       { opacity: 0.85; }
}

/* ── Hero block ─────────────────────────────────────────────── */
.ip-hero-block {
  padding: 2.25rem 1.5rem 1.75rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.ip-hero-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.ip-hero-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.875rem;
  flex-wrap: wrap;
}

/* The big IP number */
.ip-hero-address {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 6vw, 2.8rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.03em;
  line-height: 1.1;
  text-shadow: 0 0 40px rgba(0,255,136,0.2);
  transition: color 0.3s ease, text-shadow 0.3s ease;
}

.ip-hero-address.ip-loading {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0;
  text-shadow: none;
  animation: ip-pulse 1.5s ease infinite;
}

/* Copy button (in hero) */
.ip-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.ip-copy-btn:hover {
  border-color: var(--border-accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.ip-copy-btn.copied {
  color: var(--strength-4);
  border-color: rgba(5,196,107,0.35);
  background: rgba(5,196,107,0.07);
}

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

/* IPv4 / IPv6 version badge */
.ip-version-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.22rem 0.65rem;
  border-radius: 20px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid;
  white-space: nowrap;
}

.ip-version-badge.is-v4 {
  color: var(--accent-cyan);
  border-color: rgba(0,212,255,0.3);
  background: rgba(0,212,255,0.08);
}

.ip-version-badge.is-v6 {
  color: #c084fc;
  border-color: rgba(192,132,252,0.3);
  background: rgba(192,132,252,0.08);
}

/* Local preview mode banner */
.local-mode-banner {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-top: 1.25rem;
  padding: 0.75rem 1rem;
  background: rgba(255,159,67,0.07);
  border: 1px solid rgba(255,159,67,0.25);
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  color: var(--strength-2);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
  line-height: 1.5;
}

/* ── Info grid ──────────────────────────────────────────────── */
.ip-info-section { border-bottom: 1px solid var(--border); }

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

.ip-info-col {
  padding: 1.25rem 1.5rem 1.5rem;
}

.ip-info-col:first-child { border-right: 1px solid var(--border); }

.ip-info-col-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding-bottom: 0.5rem;
  margin-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}

.ip-row {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.38rem 0;
}

.ip-row-label {
  font-size: 0.77rem;
  color: var(--text-muted);
  min-width: 130px;
  flex-shrink: 0;
}

.ip-row-value {
  font-size: 0.875rem;
  color: var(--text-primary);
  word-break: break-word;
  line-height: 1.4;
}

.ip-row-value.is-mono {
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

/* IPv6 note */
.ipv6-note {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 0.875rem 1.5rem 0;
  padding: 0.65rem 0.875rem;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Privacy note */
.ip-privacy-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.875rem 1.5rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 640px) {
  .ip-hero-address { font-size: 1.9rem; letter-spacing: 0.01em; }

  .ip-info-grid { grid-template-columns: 1fr; }
  .ip-info-col:first-child { border-right: none; border-bottom: 1px solid var(--border); }
  .ip-info-col { padding: 1rem 1.25rem; }

  .ip-row-label { min-width: 110px; font-size: 0.74rem; }
  .ip-row-value { font-size: 0.845rem; }

  .ipv6-note { margin: 0.75rem 1.25rem 0; }
}

/* ============================================================
   MAC Address OUI Lookup
   ============================================================ */

/* ── Form ───────────────────────────────────────────────────── */
.mac-form {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.mac-input-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.mac-input {
  flex: 1;
  min-width: 200px;
  max-width: 320px;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 1rem;
  padding: 0.65rem 1rem;
  letter-spacing: 0.05em;
  transition: border-color var(--transition);
}

.mac-input::placeholder {
  color: var(--text-muted);
  font-family: var(--font-sans);
  letter-spacing: 0;
}

.mac-input:focus { outline: none; border-color: var(--border-accent); }
.mac-input.is-invalid { border-color: var(--strength-1) !important; }
.mac-input.is-valid   { border-color: rgba(0,255,136,0.4); }

/* Quick-example pills */
.mac-examples {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.875rem;
  flex-wrap: wrap;
}

.mac-examples-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

.mac-example-btn {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.2rem 0.65rem;
  cursor: pointer;
  transition: all var(--transition);
}

.mac-example-btn:hover {
  background: var(--accent-dim);
  border-color: var(--border-accent);
  color: var(--accent);
}

.mac-error {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  color: var(--strength-1);
  min-height: 1.2em;
}

/* ── Results ─────────────────────────────────────────────────── */
.mac-result-section {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.mac-result-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.mac-result-header.is-found    { color: var(--accent); }
.mac-result-header.is-missing  { color: var(--text-muted); }
.mac-result-header.is-special  { color: var(--strength-3); }

.mac-result-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* Vendor name (large) */
.mac-vendor-name {
  font-size: clamp(1.15rem, 3.5vw, 1.55rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.mac-vendor-sublabel {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

code.inline-code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.05);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}

/* Detail rows */
.mac-detail-grid {
  display: flex;
  flex-direction: column;
  margin-bottom: 0.75rem;
}

.mac-detail-row {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.42rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.mac-detail-row:hover { background: rgba(255,255,255,0.03); }

.mac-detail-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  min-width: 145px;
  flex-shrink: 0;
}

.mac-detail-value {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-primary);
  word-break: break-all;
}

.mac-detail-value.is-accent { color: var(--accent); font-weight: 700; }

/* Type badges */
.mac-type-row {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  padding: 0.35rem 0.5rem 0;
}

.mac-type-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid;
}

.mac-badge-unicast   { color: var(--accent-cyan); border-color: rgba(0,212,255,0.3); background: rgba(0,212,255,0.08); }
.mac-badge-multicast { color: #c084fc; border-color: rgba(192,132,252,0.3); background: rgba(192,132,252,0.08); }
.mac-badge-broadcast { color: var(--strength-2); border-color: rgba(255,159,67,0.3); background: rgba(255,159,67,0.08); }
.mac-badge-global    { color: var(--strength-4); border-color: rgba(5,196,107,0.3); background: rgba(5,196,107,0.06); }
.mac-badge-local     { color: var(--strength-3); border-color: rgba(255,211,42,0.3); background: rgba(255,211,42,0.06); }

/* Copy row */
.mac-copy-row {
  margin-top: 1.25rem;
}

/* DB info footer */
.mac-db-footer {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

.mac-db-footer a {
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

/* ── MAC responsive ──────────────────────────────────────────── */
@media (max-width: 580px) {
  .mac-input { max-width: 100%; flex-basis: 100%; }
  .mac-detail-label { min-width: 115px; font-size: 0.75rem; }
  .mac-detail-value { font-size: 0.83rem; }
}

/* ============================================================
   DNS Propagation Checker
   ============================================================ */

/* ── Form ───────────────────────────────────────────────────── */
.dns-form {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.dns-input-row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 1rem;
}

.dns-input {
  flex: 1;
  min-width: 200px;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 1rem;
  padding: 0.65rem 1rem;
  letter-spacing: 0.01em;
  transition: border-color var(--transition);
}

.dns-input::placeholder { color: var(--text-muted); font-family: var(--font-sans); letter-spacing: 0; }
.dns-input:focus { outline: none; border-color: var(--border-accent); }
.dns-input.is-invalid { border-color: var(--strength-1) !important; }
.dns-input.is-valid   { border-color: rgba(0,255,136,0.4); }
.dns-input:disabled   { opacity: 0.6; }

/* Record type selector */
.dns-type-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.dns-type-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

.dns-type-grid {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
}

.dns-type-btn {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.03em;
}

.dns-type-btn:hover {
  background: rgba(255,255,255,0.08);
  color: var(--text-primary);
}

.dns-type-btn.is-active {
  background: var(--accent-dim);
  border-color: var(--border-accent);
  color: var(--accent);
}

.dns-error {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  color: var(--strength-1);
  min-height: 1.2em;
}

/* Local preview banner */
.dns-preview-banner {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin: 1.25rem 1.5rem 0;
  padding: 0.75rem 1rem;
  background: rgba(255,159,67,0.07);
  border: 1px solid rgba(255,159,67,0.25);
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  color: var(--strength-2);
  line-height: 1.5;
}

/* ── Propagation summary bar ─────────────────────────────────── */
.dns-summary-bar {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.dns-summary-track {
  height: 6px;
  background: rgba(255,255,255,0.07);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.dns-summary-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.4s ease, background-color 0.4s ease;
}

.dns-summary-complete  .dns-summary-fill { background: var(--strength-5); width: 100%; }
.dns-summary-partial   .dns-summary-fill { background: var(--strength-4); }
.dns-summary-inconsistent .dns-summary-fill { background: var(--strength-3); }
.dns-summary-nxdomain  .dns-summary-fill { background: var(--text-muted); width: 0%; }
.dns-summary-error     .dns-summary-fill { background: var(--strength-1); width: 0%; }

.dns-summary-text { display: flex; align-items: baseline; gap: 0.75rem; flex-wrap: wrap; }

.dns-summary-label {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.dns-summary-complete   .dns-summary-label { color: var(--strength-5); }
.dns-summary-partial    .dns-summary-label { color: var(--strength-4); }
.dns-summary-inconsistent .dns-summary-label { color: var(--strength-3); }
.dns-summary-nxdomain   .dns-summary-label { color: var(--text-muted); }
.dns-summary-error      .dns-summary-label { color: var(--strength-1); }

.dns-summary-detail {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ── Resolver grid ───────────────────────────────────────────── */
.dns-results-area { padding-bottom: 0.5rem; }

.dns-resolver-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
}

/* ── Resolver card ───────────────────────────────────────────── */
.dns-resolver-card {
  background: rgba(15,15,26,0.9);
  padding: 1.1rem 1.25rem;
  transition: background var(--transition);
}

.dns-resolver-card:hover { background: rgba(20,20,32,0.95); }

/* Left column cards get right border via grid gap/background trick */

.dns-resolver-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.dns-resolver-name {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  display: block;
}

.dns-resolver-ip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  display: block;
  margin-top: 0.1rem;
}

/* Status badge */
.dns-status-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.18rem 0.55rem;
  border-radius: 20px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid;
  white-space: nowrap;
  flex-shrink: 0;
}

.dns-badge-match     { color: var(--strength-5); border-color: rgba(0,255,136,0.3); background: rgba(0,255,136,0.07); }
.dns-badge-different { color: var(--strength-3); border-color: rgba(255,211,42,0.3); background: rgba(255,211,42,0.07); }
.dns-badge-error     { color: var(--strength-1); border-color: rgba(255,56,96,0.3);  background: rgba(255,56,96,0.07);  }
.dns-badge-nxdomain  { color: var(--text-muted); border-color: var(--border);        background: transparent; }
.dns-badge-norecord  { color: var(--text-muted); border-color: var(--border);        background: transparent; }

/* Card body */
.dns-card-body { font-size: 0.85rem; }

.dns-card-message {
  color: var(--text-muted);
  font-size: 0.82rem;
  font-style: italic;
  padding: 0.1rem 0;
}

.dns-card-error { color: var(--strength-1); font-style: normal; }

/* Answer list */
.dns-answer-list { display: flex; flex-direction: column; gap: 0.5rem; }

.dns-answer-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.dns-answer-value {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-primary);
  word-break: break-all;
  flex: 1;
  line-height: 1.5;
}

.dns-answer-meta {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.dns-ttl-chip {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.1rem 0.4rem;
  white-space: nowrap;
  cursor: default;
}

.dns-answer-copy {
  background: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.1rem 0.4rem;
  font-size: 0.68rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}

.dns-answer-copy:hover {
  color: var(--accent);
  border-color: var(--border-accent);
  background: var(--accent-dim);
}

.dns-answer-copy.copied {
  color: var(--strength-4);
  border-color: rgba(5,196,107,0.3);
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 640px) {
  .dns-resolver-grid { grid-template-columns: 1fr; }
  .dns-input { min-width: 0; }
  .dns-summary-bar { padding: 1rem 1.25rem; }
  .dns-resolver-card { padding: 1rem; }
}

/* ============================================================
   Coming Soon pages
   ============================================================ */

.coming-soon-wrap {
  padding: 4rem 1.5rem 3rem;
  text-align: center;
}

.coming-soon-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255,159,67,0.08);
  border: 1px solid rgba(255,159,67,0.3);
  border-radius: 20px;
  color: var(--strength-2);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.875rem;
  margin-bottom: 1.5rem;
}

.coming-soon-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.coming-soon-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 0.75rem;
  line-height: 1.65;
}

.coming-soon-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

.coming-soon-actions {
  display: flex;
  gap: 0.875rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   About / Content pages
   ============================================================ */

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.philosophy-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  transition: border-color var(--transition);
}

.philosophy-card:hover { border-color: rgba(255,255,255,0.14); }

.philosophy-card-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}

.philosophy-card-icon {
  color: var(--accent);
  flex-shrink: 0;
}

.philosophy-card-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

.philosophy-card-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Legal pages (privacy, terms) */
.legal-section { padding: 2.5rem 0; }
.legal-section + .legal-section { border-top: 1px solid var(--border); }

.legal-section h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.875rem;
  letter-spacing: -0.01em;
}

.legal-section h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1.25rem 0 0.5rem;
}

.legal-section p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.75;
  margin-bottom: 0.875rem;
  max-width: 76ch;
}

.legal-section ul, .legal-section ol {
  list-style: none;
  margin-bottom: 0.875rem;
}

.legal-section li {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
  padding: 0.2rem 0 0.2rem 1.4rem;
  position: relative;
  max-width: 76ch;
}

.legal-section li::before {
  content: '·';
  position: absolute;
  left: 0.4rem;
  color: var(--text-muted);
  font-size: 1.2em;
  line-height: 1.5;
}

.legal-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.contact-email-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  max-width: 560px;
  margin: 1.5rem 0;
}

.contact-email-icon { color: var(--accent); flex-shrink: 0; margin-top: 0.1rem; }

.contact-email-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.contact-email-link {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.contact-email-link:hover { color: var(--accent-cyan); }

.contact-email-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}