/* ==========================================================================
   LEVELS.CSS — Native CSS style guide
   Synthesized from nomads.com, remoteok.com, hotelist.com, photoai.com
   Drop-in framework for simple, fast websites. No build step required.
   ========================================================================== */

/* --- Dark mode: apply before first paint (copy to inline <script> in HTML) ---
(function () {
  try {
    var d = localStorage.getItem('levels_dark');
    if (d === '1') document.documentElement.classList.add('dark');
    else if (d === '0') return;
    else if (matchMedia('(prefers-color-scheme: dark)').matches)
      document.documentElement.classList.add('dark');
  } catch (e) {}
})();
--- */

/* ==========================================================================
   1. DESIGN TOKENS
   ========================================================================== */

:root {
  /* Brand — override per project */
  --levels-brand: #ff4742;
  --levels-brand-light: #ff6b66;
  --levels-accent: #0072b1;
  --levels-gradient: linear-gradient(90deg, #ff0f7b 0%, #f89b29 100%);

  /* Semantic colors */
  --levels-green: #2bde73;
  --levels-green-alt: #16bf63;
  --levels-yellow: #ffc924;
  --levels-yellow-active: #ffff00;
  --levels-blue: #42b4ff;
  --levels-red: #ff5252;
  --levels-error-bg: #ffc4c3;

  /* Surfaces */
  --levels-bg: #fbfaf8;
  --levels-bg-alt: #f5f5f5;
  --levels-surface: #ffffff;
  --levels-surface-muted: #f9f9f9;

  /* Text */
  --levels-text: #1c1c1c;
  --levels-text-alt: #0f1115;
  --levels-text-dim: #686868;
  --levels-text-muted: #888888;

  /* Borders & shadows */
  --levels-border: #dddddd;
  --levels-border-subtle: #dcdddd;
  --levels-shadow: 0 0 0 1px var(--levels-border);
  --levels-shadow-brutal: 3px 3px 0 var(--levels-text-alt);

  /* Highlight */
  --levels-highlight: #fff38f;

  /* Typography */
  --levels-font: -apple-system, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --levels-font-mono: "JetBrains Mono", "SF Mono", Monaco, Inconsolata, "Fira Code", monospace;
  --levels-weight-normal: 400;
  --levels-weight-medium: 500;
  --levels-weight-bold: 700;
  --levels-weight-heavy: 800;

  /* Spacing & shape */
  --levels-padding: 14px;
  --levels-radius: 12px;
  --levels-radius-sm: 6px;
  --levels-radius-pill: 50px;
  --levels-max-width: 1100px;
  --levels-header-height: 60px;

  /* Interaction */
  --levels-transition: 0.15s ease;
}

/* Dark theme */
html.dark {
  --levels-bg: #111111;
  --levels-bg-alt: #1a1a1a;
  --levels-surface: #161616;
  --levels-surface-muted: #1f1e1e;
  --levels-text: #bfbfbf;
  --levels-text-alt: #f2f2f2;
  --levels-text-dim: #9a9a9a;
  --levels-text-muted: #6a6a6a;
  --levels-border: #343434;
  --levels-border-subtle: #2b2b2b;
  --levels-shadow: 0 0 0 1px var(--levels-border);
  --levels-shadow-brutal: 3px 3px 0 var(--levels-text-alt);
  --levels-error-bg: #5a2c2b;
}

/* Sharp/brutalist mode — hotelist-inspired */
html.levels-sharp {
  --levels-font: var(--levels-font-mono);
  --levels-radius-sm: 6px;
}

/* ==========================================================================
   2. RESET & BASE
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--levels-font);
  font-size: 16px;
  font-weight: var(--levels-weight-normal);
  line-height: 1.5;
  color: var(--levels-text);
  background: var(--levels-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  touch-action: manipulation;
}

::selection {
  background: var(--levels-highlight);
}

::-moz-selection {
  background: var(--levels-highlight);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--levels-text);
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

a:hover {
  opacity: 0.75;
}

a:active {
  opacity: 0.5;
}

/* Underline link variant (remoteok/nomads style) */
a.levels-link-underline:hover {
  opacity: 1;
  border-bottom: 2px solid currentColor;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.5em;
  font-weight: var(--levels-weight-heavy);
  line-height: 1.25;
  color: var(--levels-text-alt);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

p {
  margin: 0 0 1em;
}

/* ==========================================================================
   3. LAYOUT
   ========================================================================== */

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

.levels-container-wide {
  max-width: 1200px;
}

.levels-stack {
  display: flex;
  flex-direction: column;
  gap: var(--levels-padding);
}

.levels-cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.levels-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--levels-padding);
}

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

.levels-center {
  text-align: center;
}

/* ==========================================================================
   4. HEADER & NAV
   ========================================================================== */

.levels-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--levels-header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--levels-padding);
  background: var(--levels-surface);
  border-bottom: 1px solid var(--levels-border);
}

.levels-header-transparent {
  background: transparent;
  border-bottom: none;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

.levels-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: var(--levels-weight-heavy);
  font-size: 1.1rem;
}

.levels-logo-icon {
  width: 30px;
  height: 30px;
  border-radius: var(--levels-radius-sm);
  background: var(--levels-gradient);
  background-size: 300% 300%;
  animation: levels-gradient-shift 6s ease infinite alternate;
}

.levels-logo-gradient-text {
  background: var(--levels-gradient);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: levels-gradient-shift 6s ease infinite alternate;
}

@keyframes levels-gradient-shift {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

.levels-nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.levels-nav a {
  font-weight: var(--levels-weight-bold);
  font-size: 0.9rem;
}

.levels-nav a:hover {
  opacity: 1;
  color: var(--levels-brand);
}

/* ==========================================================================
   5. BUTTONS
   ========================================================================== */

.levels-btn {
  display: inline-block;
  padding: 9px 16px;
  font-family: inherit;
  font-size: 16px;
  font-weight: var(--levels-weight-bold);
  line-height: 1.25;
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: var(--levels-radius);
  -webkit-user-select: none;
  user-select: none;
  transition: background var(--levels-transition), color var(--levels-transition), border-color var(--levels-transition);
}

.levels-btn:active {
  opacity: 0.5;
}

.levels-btn:disabled {
  opacity: 0.5;
  pointer-events: none;
  filter: saturate(0);
}

/* Primary — brand coral (nomads default) */
.levels-btn-primary {
  background: var(--levels-brand);
  border-color: var(--levels-brand);
  color: #ffffff;
}

.levels-btn-primary:hover {
  background: transparent;
  color: var(--levels-brand);
}

/* Accent — blue (remoteok) */
.levels-btn-accent {
  background: var(--levels-accent);
  border-color: var(--levels-accent);
  color: #ffffff;
}

.levels-btn-accent:hover {
  background: transparent;
  color: var(--levels-accent);
}

/* Gradient (photoai) */
.levels-btn-gradient {
  background: var(--levels-gradient);
  background-size: 300% 300%;
  border-color: transparent;
  color: #ffffff;
}

.levels-btn-gradient:hover {
  background: transparent;
  border-color: var(--levels-text);
  color: var(--levels-text);
}

html.dark .levels-btn-gradient:hover {
  border-color: #ffffff;
  color: #ffffff;
}

/* Black/white invert */
.levels-btn-black {
  background: #000000;
  border-color: #000000;
  color: #ffffff;
}

.levels-btn-black:hover {
  background: transparent;
  color: #000000;
}

html.dark .levels-btn-black {
  background: #ffffff;
  border-color: #ffffff;
  color: #000000;
}

html.dark .levels-btn-black:hover {
  background: transparent;
  color: #ffffff;
}

/* Outline / reverse */
.levels-btn-outline {
  background: transparent;
  border-color: var(--levels-text-alt);
  color: var(--levels-text-alt);
}

.levels-btn-outline:hover {
  background: var(--levels-text-alt);
  color: var(--levels-bg);
}

/* Semantic */
.levels-btn-green {
  background: var(--levels-green-alt);
  border-color: var(--levels-green-alt);
  color: #ffffff;
}

.levels-btn-green:hover {
  background: transparent;
  color: var(--levels-green-alt);
}

/* Brutalist — hotelist pressable */
.levels-btn-brutal {
  background: var(--levels-surface);
  border: 2px solid var(--levels-text-alt);
  box-shadow: var(--levels-shadow-brutal);
  color: var(--levels-text-alt);
  position: relative;
  top: 0;
  left: 0;
  transition: box-shadow 0.3s ease-in-out, top 0.3s ease-in-out, left 0.3s ease-in-out;
}

.levels-btn-brutal:hover {
  opacity: 1;
  box-shadow: 1px 1px 0 var(--levels-text-alt);
  top: 2px;
  left: 2px;
}

.levels-btn-brutal:active {
  opacity: 1;
  box-shadow: 0 0 0 var(--levels-text-alt);
  top: 3px;
  left: 3px;
}

/* Large CTA */
.levels-btn-lg {
  padding: 14px 28px;
  font-size: 1.1rem;
  font-weight: var(--levels-weight-heavy);
}

/* ==========================================================================
   6. BADGES & TRUST SIGNALS
   ========================================================================== */

.levels-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: var(--levels-weight-bold);
}

.levels-badge-stars {
  color: var(--levels-yellow);
  letter-spacing: 1px;
}

.levels-badge-rank {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--levels-text-dim);
}

/* Avatar stack (nomads social proof) */
.levels-avatars {
  display: inline-flex;
  align-items: center;
}

.levels-avatars img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--levels-surface);
  margin-left: -8px;
  object-fit: cover;
}

.levels-avatars img:first-child {
  margin-left: 0;
}

/* Live counter */
.levels-counter {
  font-size: 0.9rem;
  color: var(--levels-text-dim);
}

.levels-counter strong {
  color: var(--levels-text-alt);
  font-weight: var(--levels-weight-heavy);
}

/* ==========================================================================
   7. HERO (landing page pattern)
   ========================================================================== */

.levels-hero {
  padding: 56px var(--levels-padding) 42px;
  text-align: center;
}

.levels-hero h1 {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  margin-bottom: 0.25em;
}

.levels-hero h1 .levels-emoji {
  display: block;
  font-size: 1.2em;
  margin-bottom: 0.15em;
}

.levels-hero .levels-subtitle {
  font-size: 1.1rem;
  color: var(--levels-text-dim);
  max-width: 600px;
  margin: 0 auto 1.5em;
  font-weight: var(--levels-weight-normal);
}

.levels-hero-steps {
  list-style: none;
  padding: 0;
  margin: 0 auto 2em;
  max-width: 500px;
  text-align: left;
}

.levels-hero-steps li {
  padding: 6px 0;
  font-size: 0.95rem;
}

.levels-hero-steps li::before {
  content: none;
}

.levels-hero-image {
  width: 100%;
  max-width: 700px;
  margin: 2em auto;
  border-radius: var(--levels-radius);
  overflow: hidden;
}

.levels-hero-cta {
  margin-top: 1.5em;
}

.levels-hero-note {
  font-size: 0.85rem;
  color: var(--levels-text-dim);
  margin-top: 0.75em;
}

/* Photo header variant (remoteok) */
.levels-hero-photo {
  position: relative;
  min-height: 25vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.5);
  overflow: hidden;
}

.levels-hero-photo .levels-hero-bg {
  position: absolute;
  inset: -10px;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.levels-hero-photo > *:not(.levels-hero-bg) {
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   8. FILTER CHIPS & TAGS
   ========================================================================== */

.levels-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: var(--levels-padding);
  background: var(--levels-surface);
  border-top: 1px solid var(--levels-border);
  border-bottom: 1px solid var(--levels-border);
}

.levels-filters-scroll {
  flex-wrap: nowrap;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.levels-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  font-family: inherit;
  font-size: 14px;
  font-weight: var(--levels-weight-medium);
  color: var(--levels-text);
  background: var(--levels-surface);
  border: 1px solid var(--levels-border);
  border-radius: var(--levels-radius);
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--levels-transition);
}

.levels-chip:hover {
  background: var(--levels-bg-alt);
  opacity: 1;
}

.levels-chip-active,
.levels-chip.is-active {
  background: var(--levels-yellow-active);
  border-color: var(--levels-text-alt);
  font-weight: var(--levels-weight-bold);
  color: var(--levels-text-alt);
}

html.dark .levels-chip-active,
html.dark .levels-chip.is-active {
  background: var(--levels-yellow-active);
  color: #000000;
}

/* Brutalist chip variant */
html.levels-sharp .levels-chip {
  border: 2px solid var(--levels-text-alt);
  box-shadow: var(--levels-shadow-brutal);
  border-radius: var(--levels-radius-sm);
}

/* Dotted filter link (nomads sort options) */
.levels-filter-link {
  display: inline-block;
  border-bottom: 1px dotted var(--levels-brand);
  color: var(--levels-brand);
  cursor: pointer;
  margin: 0 4px;
}

.levels-filter-link:hover {
  opacity: 1;
}

/* ==========================================================================
   9. CARDS & GRID
   ========================================================================== */

.levels-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--levels-padding);
  padding: var(--levels-padding);
}

.levels-card {
  background: var(--levels-surface);
  border: 1px solid var(--levels-border);
  border-radius: var(--levels-radius);
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow var(--levels-transition);
}

.levels-card:hover {
  box-shadow: var(--levels-shadow);
  opacity: 1;
}

.levels-card:active {
  opacity: 0.75;
}

.levels-card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--levels-bg-alt);
}

.levels-card-body {
  padding: var(--levels-padding);
}

.levels-card-title {
  font-size: 1.1rem;
  font-weight: var(--levels-weight-heavy);
  margin-bottom: 0.25em;
}

.levels-card-meta {
  font-size: 0.85rem;
  color: var(--levels-text-dim);
}

.levels-card-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
  font-size: 0.8rem;
}

.levels-card-stat {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

/* ==========================================================================
   10. TABLE (remoteok job board pattern)
   ========================================================================== */

.levels-table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.levels-table {
  width: 100%;
  max-width: var(--levels-max-width);
  margin: var(--levels-padding) auto;
  border-collapse: separate;
  border-spacing: 0 4px;
}

.levels-table th {
  text-align: left;
  padding: 8px var(--levels-padding);
  font-size: 0.85rem;
  font-weight: var(--levels-weight-heavy);
  color: var(--levels-text-dim);
}

.levels-table td {
  padding: 12px var(--levels-padding);
  background: var(--levels-surface);
  vertical-align: middle;
}

.levels-table tr.levels-row {
  cursor: pointer;
}

.levels-table tr.levels-row td:first-child {
  border-radius: var(--levels-radius) 0 0 var(--levels-radius);
}

.levels-table tr.levels-row td:last-child {
  border-radius: 0 var(--levels-radius) var(--levels-radius) 0;
}

.levels-table tr.levels-row:hover td {
  background: var(--levels-bg-alt);
}

.levels-table tr.levels-row:active td {
  opacity: 0.75;
}

.levels-table .levels-position {
  font-weight: var(--levels-weight-heavy);
}

.levels-table .levels-company {
  color: var(--levels-text-dim);
  font-size: 0.9rem;
}

.levels-table .levels-salary {
  font-weight: var(--levels-weight-bold);
  white-space: nowrap;
}

.levels-table .levels-date {
  font-size: 0.75rem;
  color: var(--levels-text-muted);
  text-transform: uppercase;
}

/* ==========================================================================
   11. FORMS & INPUTS
   ========================================================================== */

.levels-input,
.levels-select,
.levels-textarea {
  font-family: inherit;
  font-size: 16px;
  padding: 10px 12px;
  color: var(--levels-text);
  background: var(--levels-surface);
  border: 1px solid var(--levels-border);
  border-radius: var(--levels-radius);
  outline: none;
  width: 100%;
  transition: border-color var(--levels-transition), background var(--levels-transition);
}

.levels-input:focus,
.levels-select:focus,
.levels-textarea:focus {
  border-color: var(--levels-brand);
}

.levels-input::placeholder {
  color: var(--levels-text-dim);
}

/* Brutalist input */
html.levels-sharp .levels-input,
html.levels-sharp .levels-select {
  border: 2px solid var(--levels-text-alt);
  box-shadow: var(--levels-shadow-brutal);
  border-radius: var(--levels-radius-sm);
}

.levels-label {
  display: block;
  font-size: 0.85rem;
  font-weight: var(--levels-weight-bold);
  margin-bottom: 4px;
  color: var(--levels-text-dim);
}

.levels-field {
  margin-bottom: var(--levels-padding);
}

/* Email capture bar */
.levels-capture {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 10px var(--levels-padding);
  background: var(--levels-surface);
  border: 1px solid var(--levels-border);
  border-radius: var(--levels-radius);
}

.levels-capture .levels-input {
  flex: 1;
  min-width: 200px;
  border: none;
  background: transparent;
  padding: 6px 0;
}

/* ==========================================================================
   12. MODAL
   ========================================================================== */

.levels-modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 100;
  cursor: pointer;
}

.levels-modal-backdrop.is-open {
  display: block;
}

.levels-modal {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 101;
  width: calc(100% - 28px);
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--levels-surface);
  border: 1px solid var(--levels-border);
  border-radius: var(--levels-radius);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
  padding: calc(var(--levels-padding) * 2);
}

.levels-modal.is-open {
  display: block;
}

.levels-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--levels-text-dim);
  line-height: 1;
}

/* ==========================================================================
   13. PRESS & TESTIMONIALS (photoai pattern)
   ========================================================================== */

.levels-press {
  text-align: center;
  padding: 2em var(--levels-padding);
}

.levels-press-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--levels-text-dim);
  margin-bottom: 1em;
}

.levels-press-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 24px;
  opacity: 0.7;
}

.levels-press-logos img {
  height: 32px;
  width: auto;
  filter: grayscale(100%);
  object-fit: contain;
}

.levels-quote {
  max-width: 600px;
  margin: 2em auto;
  padding: var(--levels-padding);
  text-align: center;
}

.levels-quote blockquote {
  margin: 0 0 0.75em;
  font-size: 1rem;
  font-style: italic;
  color: var(--levels-text);
}

.levels-quote cite {
  font-size: 0.85rem;
  color: var(--levels-text-dim);
  font-style: normal;
}

.levels-testimonial {
  background: var(--levels-surface);
  border: 1px solid var(--levels-border);
  border-radius: var(--levels-radius);
  padding: var(--levels-padding);
  max-width: 360px;
}

.levels-testimonial-stars {
  color: var(--levels-yellow);
  margin-bottom: 8px;
}

.levels-testimonial-text {
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.levels-testimonial-author {
  font-size: 0.85rem;
  font-weight: var(--levels-weight-bold);
}

.levels-testimonial-verified {
  font-size: 0.75rem;
  color: var(--levels-green-alt);
}

/* ==========================================================================
   14. SIDEBAR WIDGET (nomads pattern)
   ========================================================================== */

.levels-widget {
  background: var(--levels-surface);
  border: 1px solid var(--levels-border);
  border-radius: var(--levels-radius);
  padding: var(--levels-padding);
  margin-bottom: var(--levels-padding);
  font-size: 0.9rem;
}

.levels-widget-title {
  font-weight: var(--levels-weight-heavy);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.levels-widget-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.levels-widget-list li {
  padding: 4px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Pros / cons (hotelist) */
.levels-pro {
  background: rgba(43, 222, 115, 0.25);
  padding: 4px 8px;
  border-radius: var(--levels-radius-sm);
  font-size: 0.85rem;
}

.levels-con {
  background: rgba(255, 71, 66, 0.35);
  padding: 4px 8px;
  border-radius: var(--levels-radius-sm);
  font-size: 0.85rem;
}

/* ==========================================================================
   15. TOOLTIP
   ========================================================================== */

.levels-tooltip {
  position: relative;
}

.levels-tooltip[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) scale(0.9);
  background: var(--levels-surface);
  border: 1px solid var(--levels-border);
  color: var(--levels-text);
  padding: 6px 10px;
  border-radius: var(--levels-radius);
  font-size: 0.75rem;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--levels-transition), transform var(--levels-transition);
  z-index: 200;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.14);
}

.levels-tooltip:hover[data-tooltip]::after {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

/* ==========================================================================
   16. UTILITIES
   ========================================================================== */

.levels-hidden { display: none !important; }
.levels-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;
}

.levels-text-dim { color: var(--levels-text-dim); }
.levels-text-brand { color: var(--levels-brand); }
.levels-text-accent { color: var(--levels-accent); }
.levels-bg-surface { background: var(--levels-surface); }
.levels-mono { font-family: var(--levels-font-mono); }
.levels-bold { font-weight: var(--levels-weight-heavy); }
.levels-small { font-size: 0.85rem; }
.levels-uppercase { text-transform: uppercase; letter-spacing: 0.05em; }

.levels-mt-0 { margin-top: 0; }
.levels-mt-1 { margin-top: var(--levels-padding); }
.levels-mt-2 { margin-top: calc(var(--levels-padding) * 2); }
.levels-mb-1 { margin-bottom: var(--levels-padding); }
.levels-mb-2 { margin-bottom: calc(var(--levels-padding) * 2); }

/* Dark mode toggle button */
.levels-dark-toggle {
  background: var(--levels-surface);
  border: 1px solid var(--levels-border);
  border-radius: var(--levels-radius-pill);
  padding: 6px 12px;
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--levels-text);
}

html.levels-sharp .levels-dark-toggle {
  border: 2px solid var(--levels-text-alt);
  box-shadow: var(--levels-shadow-brutal);
  border-radius: var(--levels-radius-sm);
}

/* Mark / highlight text */
mark, .levels-mark {
  background: var(--levels-highlight) !important;
  color: inherit;
}

/* Error state */
.levels-error {
  background: var(--levels-error-bg);
  padding: var(--levels-padding);
  border-radius: var(--levels-radius);
}

/* Footer */
.levels-footer {
  margin-top: 56px;
  padding: 28px var(--levels-padding);
  border-top: 1px solid var(--levels-border);
  font-size: 0.85rem;
  color: var(--levels-text-dim);
}

.levels-footer a {
  color: var(--levels-text-dim);
}

/* ==========================================================================
   17. LOGIN PAGE (photoai / nomads pattern)
   ========================================================================== */

.levels-login-page {
  min-height: 100vh;
  display: flex;
  overflow: hidden;
}

.levels-login-visual {
  flex: 1;
  position: relative;
  background-size: cover;
  background-position: center;
  background-color: var(--levels-bg-alt);
  min-height: 240px;
}

.levels-login-visual-dim {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.55) 0%,
    rgba(0, 0, 0, 0.1) 45%,
    transparent 100%
  );
}

.levels-login-visual-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px 28px 24px;
  color: #ffffff;
  z-index: 1;
}

.levels-login-visual-content h2 {
  color: #ffffff;
  font-size: 1.5rem;
  margin-bottom: 0.35em;
  text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.35);
}

.levels-login-visual-content p {
  margin: 0;
  font-size: 0.9rem;
  opacity: 0.9;
  text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.35);
}

.levels-login-visual-credit {
  margin-top: 12px;
  font-size: 0.75rem;
  opacity: 0.75;
}

.levels-login-visual-credit a {
  color: #ffffff;
  text-decoration: underline;
}

.levels-login-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 28px;
  background: var(--levels-bg);
  position: relative;
  min-width: 0;
}

html.dark .levels-login-panel {
  background: var(--levels-bg);
}

.levels-login-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--levels-border);
  background: var(--levels-surface);
  color: var(--levels-text);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  padding-bottom: 2px;
}

.levels-login-close:hover {
  opacity: 1;
  background: var(--levels-bg-alt);
}

.levels-login-form-wrap {
  width: 100%;
  max-width: 360px;
  text-align: center;
}

.levels-login-logo {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 1.5rem;
  font-weight: var(--levels-weight-heavy);
}

.levels-login-logo .levels-logo-icon {
  width: 36px;
  height: 36px;
}

.levels-login-tagline {
  font-size: 0.9rem;
  color: var(--levels-text-dim);
  margin-bottom: 28px;
}

.levels-login-form {
  text-align: left;
}

.levels-login-form .levels-field {
  margin-bottom: 12px;
}

.levels-login-form .levels-input {
  padding: 14px 16px;
}

.levels-login-form .levels-btn {
  width: 100%;
  display: block;
  padding: 14px;
  margin-top: 4px;
}

.levels-login-forgot {
  display: block;
  text-align: right;
  font-size: 0.8rem;
  margin-top: 6px;
  color: var(--levels-text-dim);
}

.levels-login-forgot:hover {
  color: var(--levels-brand);
  opacity: 1;
}

.levels-login-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  color: var(--levels-text-dim);
  font-size: 0.8rem;
}

.levels-login-divider::before,
.levels-login-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--levels-border);
}

.levels-login-google {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px;
  font-family: inherit;
  font-size: 16px;
  font-weight: var(--levels-weight-bold);
  border-radius: var(--levels-radius);
  border: 1px solid var(--levels-border);
  background: var(--levels-surface);
  color: var(--levels-text-alt);
  cursor: pointer;
  transition: background var(--levels-transition);
}

.levels-login-google:hover {
  opacity: 1;
  background: var(--levels-bg-alt);
}

.levels-login-google:active {
  opacity: 0.5;
}

html.dark .levels-login-google {
  background: var(--levels-surface);
  border-color: var(--levels-border);
  color: var(--levels-text);
}

.levels-login-note {
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--levels-text-dim);
  text-align: center;
}

.levels-login-note a {
  color: var(--levels-brand);
  font-weight: var(--levels-weight-bold);
}

.levels-login-note a:hover {
  opacity: 1;
}

.levels-login-legal {
  margin-top: 24px;
  font-size: 0.72rem;
  color: var(--levels-text-muted);
  line-height: 1.5;
  text-align: center;
}

.levels-login-toolbar {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  gap: 8px;
}

.levels-login-error {
  display: none;
  margin-bottom: 12px;
  padding: 10px 12px;
  font-size: 0.85rem;
  text-align: left;
}

.levels-login-error.is-visible {
  display: block;
}

@media (max-width: 900px) {
  .levels-login-page {
    flex-direction: column;
  }

  .levels-login-visual {
    min-height: 200px;
    max-height: 28vh;
  }

  .levels-login-panel {
    flex: 1;
    padding: 32px 20px 48px;
  }
}

/* ==========================================================================
   18. RESPONSIVE
   ========================================================================== */

@media (max-width: 768px) {
  .levels-nav .levels-nav-hide-mobile {
    display: none;
  }

  .levels-hero {
    padding-top: 32px;
  }

  .levels-card-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  :root {
    --levels-padding: 10px;
  }

  h1 { font-size: 1.5rem; }
}

/* Dark scrollbar (nomads/remoteok pattern) */
html.dark ::-webkit-scrollbar {
  width: 12px;
  height: 12px;
  background: #2c2c2c;
}

html.dark ::-webkit-scrollbar-thumb {
  background: #6b6b6c;
  border-radius: 1ex;
}