/* ============================================================================
 * AI Reviews Manager Workshop — base.css   (campaign: airm-070926)
 * ----------------------------------------------------------------------------
 * Design system: the imported Claude Design kit
 *   (campaigns/airm-070926/assets/design-kit/) is THIS campaign's system.
 * This file is the single, self-contained base stylesheet linked by EVERY
 * funnel page. It encodes the kit's tokens (colors_and_type.css) + core
 * components (buttons, cards, sections, badges, forms, trust bar, header,
 * footer) in the kit's visual language (indigo brand, Inter Tight / Inter /
 * JetBrains Mono, warm off-white surfaces, soft shadows, 10px radius base).
 *
 * Recurring-bug guardrails baked in (docs/paid-workshop-master-spec.md / DoD):
 *   - [hidden]{display:none!important}  (so JS show/hide never leaks)
 *   - box-sizing:border-box reset + sane element resets
 *   - mobile-first, responsive
 *   - prefers-reduced-motion honored
 *   - :focus-visible rings for keyboard a11y
 * ==========================================================================*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Inter+Tight:wght@500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---------------------------------------------------------------------------
 * 1 · DESIGN TOKENS  (light)
 * ------------------------------------------------------------------------- */
:root {
  /* Base surfaces + text */
  --bg:            hsl(40 20% 98%);   /* warm off-white page bg (#FAF9F5-ish) */
  --bg-elevated:   hsl(0 0% 100%);    /* card surface */
  --bg-muted:      hsl(220 15% 96%);  /* quiet surface, chip */
  --fg1:           hsl(220 15% 10%);  /* primary text */
  --fg2:           hsl(220 10% 45%);  /* muted text */
  --fg3:           hsl(220 10% 65%);  /* placeholder, tertiary */
  --border:        hsl(220 15% 92%);  /* hairline */
  --border-strong: hsl(220 15% 85%);

  /* Brand — indigo */
  --indigo:        hsl(245 70% 55%);  /* #4D4DE0 primary */
  --indigo-deep:   hsl(230 75% 60%);  /* #3D6BE6 gradient end / hover */
  --indigo-soft:   hsl(245 70% 95%);  /* tint bg */
  --indigo-fg:     hsl(0 0% 100%);    /* text on indigo */
  --deep-navy:     hsl(248 60% 8%);   /* #0a0820 dark hero */

  /* Semantic accents */
  --emerald:       hsl(160 84% 39%);  /* success / voice */
  --amber:         hsl(38 92% 50%);   /* warning / scheduled */
  --coral:         hsl(15 85% 60%);   /* accent (#EE7045) */
  --rose:          hsl(8 75% 55%);    /* destructive */

  /* Semantic soft pairs (bg + fg) */
  --emerald-bg:    hsl(160 60% 92%);  --emerald-fg: hsl(160 75% 28%);
  --amber-bg:      hsl(38 95% 92%);   --amber-fg:   hsl(28 85% 38%);
  --coral-bg:      hsl(15 90% 94%);   --coral-fg:   hsl(15 75% 42%);
  --rose-bg:       hsl(8 85% 94%);    --rose-fg:    hsl(8 75% 42%);

  /* Gradients */
  --gradient-primary:       linear-gradient(135deg, hsl(245 70% 55%) 0%, hsl(230 75% 60%) 100%);
  --gradient-text-animated: linear-gradient(135deg, hsl(258 90% 66%), hsl(217 91% 60%), hsl(258 90% 72%), hsl(217 91% 65%));
  --gradient-subtle:        linear-gradient(180deg, hsl(40 20% 98%) 0%, hsl(40 20% 96%) 100%);

  /* Shadows */
  --shadow-soft:       0 1px 2px 0 hsl(220 15% 10% / 0.04);
  --shadow-card:       0 1px 2px 0 hsl(220 15% 10% / 0.04), 0 0 0 1px hsl(220 15% 92% / 1);
  --shadow-card-hover: 0 8px 24px -8px hsl(220 15% 10% / 0.08), 0 0 0 1px hsl(220 15% 88% / 1);
  --shadow-glow:       0 0 40px -12px hsl(245 70% 55% / 0.25);
  --shadow-elevated:   0 24px 48px -16px hsl(220 15% 10% / 0.12), 0 4px 12px -4px hsl(220 15% 10% / 0.04);

  /* Radii (base 10px) */
  --radius:     0.625rem;
  --radius-sm:  calc(var(--radius) - 4px);
  --radius-md:  calc(var(--radius) - 2px);
  --radius-lg:  var(--radius);
  --radius-xl:  calc(var(--radius) + 4px);
  --radius-2xl: calc(var(--radius) + 8px);
  --radius-3xl: calc(var(--radius) + 12px);
  --radius-full: 999px;

  /* Spacing (4px base) */
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-8: 32px; --space-10: 40px;
  --space-12: 48px; --space-16: 64px; --space-24: 96px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 200ms;  --dur-base: 300ms;  --dur-slow: 600ms;

  /* Type families */
  --font-sans:    'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Inter Tight', 'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Component-level tokens */
  --header-bg:     hsl(40 20% 98% / 0.82);
  --content-max:   1080px;
  --content-narrow: 720px;

  /* Kit aliases (kept in sync so both naming conventions resolve) */
  --primary: hsl(245 70% 55%); --primary-end: hsl(230 75% 60%);
  --primary-fg: hsl(0 0% 100%); --primary-soft: hsl(245 70% 95%);
  --surface-glass: hsl(0 0% 100% / 0.72);
}

/* ---------------------------------------------------------------------------
 * 2 · DARK THEME
 *   Applies on explicit .dark / [data-theme="dark"], OR on system dark unless
 *   the page has opted into [data-theme="light"]. Mirrors the funnel's toggle.
 * ------------------------------------------------------------------------- */
:root.dark,
:root[data-theme="dark"] {
  --bg:            hsl(222 47% 6%);
  --bg-elevated:   hsl(222 47% 8%);
  --bg-muted:      hsl(222 47% 14%);
  --fg1:           hsl(0 0% 98%);
  --fg2:           hsl(220 9% 62%);
  --fg3:           hsl(220 9% 45%);
  --border:        hsl(222 47% 14%);
  --border-strong: hsl(222 47% 22%);
  --indigo:        hsl(258 90% 66%);
  --indigo-deep:   hsl(217 91% 60%);
  --indigo-soft:   hsl(258 90% 18%);
  --header-bg:     hsl(222 47% 6% / 0.82);
  --shadow-card:       0 1px 2px 0 hsl(0 0% 0% / 0.3), 0 0 0 1px hsl(222 47% 16% / 1);
  --shadow-card-hover: 0 8px 24px -8px hsl(0 0% 0% / 0.5), 0 0 0 1px hsl(222 47% 22% / 1);
  --primary: hsl(258 90% 66%); --primary-end: hsl(217 91% 60%); --primary-soft: hsl(258 90% 18%);
  --surface-glass: hsl(222 47% 8% / 0.7);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:            hsl(222 47% 6%);
    --bg-elevated:   hsl(222 47% 8%);
    --bg-muted:      hsl(222 47% 14%);
    --fg1:           hsl(0 0% 98%);
    --fg2:           hsl(220 9% 62%);
    --fg3:           hsl(220 9% 45%);
    --border:        hsl(222 47% 14%);
    --border-strong: hsl(222 47% 22%);
    --indigo:        hsl(258 90% 66%);
    --indigo-deep:   hsl(217 91% 60%);
    --indigo-soft:   hsl(258 90% 18%);
    --header-bg:     hsl(222 47% 6% / 0.82);
    --shadow-card:       0 1px 2px 0 hsl(0 0% 0% / 0.3), 0 0 0 1px hsl(222 47% 16% / 1);
    --shadow-card-hover: 0 8px 24px -8px hsl(0 0% 0% / 0.5), 0 0 0 1px hsl(222 47% 22% / 1);
    --primary: hsl(258 90% 66%); --primary-end: hsl(217 91% 60%); --primary-soft: hsl(258 90% 18%);
    --surface-glass: hsl(222 47% 8% / 0.7);
  }
}

/* ---------------------------------------------------------------------------
 * 3 · RESETS + GUARDRAILS
 * ------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
[hidden] { display: none !important; }           /* recurring-bug guardrail */

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

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--fg1);
  background: var(--bg);
  font-feature-settings: 'cv11', 'ss01', 'ss03';
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg, video, canvas { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }

a { color: var(--indigo); text-decoration: none; }
a:hover { text-decoration: underline; }

:where(a, button, input, textarea, select, [tabindex]):focus-visible {
  outline: 2px solid var(--indigo);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

/* ---------------------------------------------------------------------------
 * 4 · TYPOGRAPHY
 * ------------------------------------------------------------------------- */
h1, .h1 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(40px, 6vw, 72px); letter-spacing: -0.035em;
  line-height: 0.98; color: var(--fg1);
}
h2, .h2 {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(28px, 4vw, 44px); letter-spacing: -0.025em;
  line-height: 1.08; color: var(--fg1);
}
h3, .h3 {
  font-family: var(--font-display); font-weight: 600;
  font-size: 24px; letter-spacing: -0.02em; line-height: 1.2; color: var(--fg1);
}
h4, .h4 {
  font-family: var(--font-display); font-weight: 600;
  font-size: 18px; letter-spacing: -0.015em; color: var(--fg1);
}
h5, .h5 {
  font-family: var(--font-display); font-weight: 600;
  font-size: 15px; letter-spacing: -0.01em; color: var(--fg1);
}

p, .p { font-family: var(--font-sans); color: var(--fg2); line-height: 1.55; }
.body-lg { font-size: 18px; line-height: 1.55; color: var(--fg2); }
.body-md { font-size: 16px; line-height: 1.55; color: var(--fg2); }
.body-sm { font-size: 14px; line-height: 1.5;  color: var(--fg2); }
.caption { font-size: 12px; line-height: 1.4;  color: var(--fg3); }

.eyebrow {
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.18em; color: var(--fg2);
}
.eyebrow-pill {
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.16em; color: var(--indigo);
  background: var(--indigo-soft); padding: 6px 10px; border-radius: var(--radius-full);
  display: inline-flex; align-items: center; gap: 6px;
}

code, .mono, kbd { font-family: var(--font-mono); }
.stat {
  font-family: var(--font-display); font-weight: 700;
  font-feature-settings: 'tnum'; letter-spacing: -0.035em; line-height: 0.95;
}

.text-gradient {
  background-image: var(--gradient-primary);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.text-muted   { color: var(--fg2); }
.text-tertiary{ color: var(--fg3); }
.text-strong  { color: var(--fg1); }
.text-indigo  { color: var(--indigo); }
.tnum         { font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------------------
 * 5 · LAYOUT
 * ------------------------------------------------------------------------- */
.container { max-width: var(--content-max); margin: 0 auto; padding-inline: var(--space-6); width: 100%; }
.container--narrow { max-width: var(--content-narrow); }

.section { padding-block: var(--space-16); }
.section--sm { padding-block: var(--space-10); }
.section--tight { padding-block: var(--space-8); }

.stack   { display: flex; flex-direction: column; gap: var(--space-6); }
.stack-sm{ display: flex; flex-direction: column; gap: var(--space-3); }
.stack-lg{ display: flex; flex-direction: column; gap: var(--space-10); }
.row     { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.grid-2  { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }

/* Content + sticky-sidebar layout (used by hub / access). */
.layout-sidebar {
  display: grid; grid-template-columns: 1fr; gap: var(--space-6); align-items: start;
}
@media (min-width: 900px) {
  .layout-sidebar { grid-template-columns: 1fr 340px; gap: 28px; }
}
@media (max-width: 640px) {
  .grid-2 { grid-template-columns: 1fr; }
}

.divider { height: 1px; background: var(--border); border: 0; margin-block: var(--space-6); }

/* ---------------------------------------------------------------------------
 * 6 · BUTTONS
 * ------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  height: 48px; padding: 0 22px; border-radius: var(--radius-lg);
  font-family: var(--font-sans); font-weight: 600; font-size: 15px; line-height: 1;
  text-decoration: none; white-space: nowrap; cursor: pointer;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              filter var(--dur-fast) var(--ease-out);
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn svg { flex-shrink: 0; }

.btn--primary { background: var(--gradient-primary); color: #fff; box-shadow: var(--shadow-glow); }
.btn--primary:hover { filter: brightness(1.05); box-shadow: 0 0 48px -10px hsl(245 70% 55% / 0.4); transform: translateY(-1px); }

.btn--secondary { background: var(--bg-elevated); color: var(--fg1); border-color: var(--border-strong); }
.btn--secondary:hover { border-color: var(--indigo); color: var(--indigo); }

.btn--muted { background: var(--bg-muted); color: var(--fg1); border-color: var(--border); }
.btn--muted:hover { border-color: var(--border-strong); }

.btn--ghost { background: transparent; color: var(--fg1); border-color: var(--border); }
.btn--ghost:hover { background: var(--bg-muted); }

/* On-dark (indigo/navy surface) — white pill with indigo text */
.btn--light { background: #fff; color: var(--indigo); box-shadow: var(--shadow-soft); }
.btn--light:hover { filter: brightness(0.97); transform: translateY(-1px); }

.btn--block { width: 100%; }
.btn--sm { height: 40px; padding: 0 16px; font-size: 13.5px; border-radius: var(--radius-lg); }
.btn--lg { height: 54px; padding: 0 28px; font-size: 16px; border-radius: var(--radius-xl); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* Shimmer sweep on a primary CTA */
.btn--shimmer { position: relative; overflow: hidden; }
.btn--shimmer::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 40%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,.4), transparent);
  animation: airm-shimmer 3.4s ease-in-out infinite;
}

/* ---------------------------------------------------------------------------
 * 7 · CARDS + SURFACES
 * ------------------------------------------------------------------------- */
.card {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-2xl); box-shadow: var(--shadow-card);
  padding: var(--space-6);
}
.card--pad-lg { padding: var(--space-8); }
.card--pad-sm { padding: var(--space-4); }
.card--hover { transition: box-shadow var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out); }
.card--hover:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-2px); }
.card--elevated { box-shadow: var(--shadow-elevated); border-radius: var(--radius-3xl); }
.card--navy { background: var(--deep-navy); color: #fff; border: 0; border-radius: var(--radius-3xl); box-shadow: var(--shadow-elevated); position: relative; overflow: hidden; }

.surface-muted { background: var(--bg-muted); border-radius: var(--radius-xl); }
.surface-indigo{ background: var(--indigo-soft); color: var(--indigo); border-radius: var(--radius-xl); }

/* Icon tile (leading square used in list rows) */
.icon-tile {
  flex-shrink: 0; width: 46px; height: 46px; border-radius: 12px;
  background: var(--indigo-soft); color: var(--indigo);
  display: grid; place-items: center;
}
.icon-tile--sm { width: 26px; height: 26px; border-radius: 7px; }

/* Media / video slot (16:9) */
.video-frame {
  position: relative; aspect-ratio: 16 / 9; overflow: hidden;
  border-radius: var(--radius-xl); box-shadow: var(--shadow-elevated);
  border: 1px solid var(--border); background: var(--bg-muted);
}
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-frame__placeholder {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 10px; text-align: center;
  color: var(--fg3); padding: 20px;
  background: radial-gradient(60% 70% at 50% 30%, var(--indigo-soft), transparent 70%), var(--bg-muted);
}

/* ---------------------------------------------------------------------------
 * 8 · BADGES + PILLS
 * ------------------------------------------------------------------------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.12em;
  padding: 6px 10px; border-radius: var(--radius-full);
}
.badge--indigo  { color: var(--indigo);     background: var(--indigo-soft); }
.badge--emerald { color: var(--emerald-fg);  background: var(--emerald-bg); }
.badge--amber   { color: var(--amber-fg);    background: var(--amber-bg); }
.badge--coral   { color: var(--coral-fg);    background: var(--coral-bg); }
.badge--rose    { color: var(--rose-fg);     background: var(--rose-bg); }

/* Neutral chip (sentence-case, for flow steps / metadata) */
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--bg-muted); border: 1px solid var(--border);
  padding: 9px 14px; border-radius: var(--radius-full);
  font-size: 13px; font-weight: 500; color: var(--fg1);
}

/* Live status dot (pulsing) */
.dot-live { width: 7px; height: 7px; border-radius: 50%; background: var(--emerald); animation: airm-pulse 2.4s infinite; display: inline-block; }

/* ---------------------------------------------------------------------------
 * 9 · FORMS
 * ------------------------------------------------------------------------- */
.field { margin-bottom: var(--space-5); }
.label { display: block; font-size: 14px; font-weight: 600; color: var(--fg1); margin-bottom: var(--space-2); }
.label__hint { font-weight: 400; color: var(--fg3); }

.input, .textarea, .select {
  width: 100%; padding: 11px 13px; font-size: 14px; line-height: 1.5;
  color: var(--fg1); background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  outline: none; transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.input::placeholder, .textarea::placeholder { color: var(--fg3); }
.input:focus, .textarea:focus, .select:focus {
  border-color: var(--indigo); box-shadow: 0 0 0 3px hsl(245 70% 55% / 0.15);
}
.textarea { resize: vertical; min-height: 4.5rem; }
.select { height: 46px; padding: 0 13px; appearance: none; cursor: pointer; }
.select-wrap { position: relative; }
.select-wrap__chevron { position: absolute; right: 13px; top: 50%; transform: translateY(-50%); pointer-events: none; color: var(--fg3); }

/* Radio pills (kit ".airm-tab") */
.tab, .airm-tab {
  flex: 1; min-width: 110px; cursor: pointer; text-align: center;
  border: 1.5px solid var(--border); border-radius: var(--radius-lg);
  padding: 12px 14px; font-size: 14px; font-weight: 500; color: var(--fg1);
  transition: border-color var(--dur-fast), background var(--dur-fast), color var(--dur-fast);
}
.tab input, .airm-tab input { display: none; }
.tab:hover, .airm-tab:hover { border-color: var(--indigo); }
.tab:has(input:checked), .airm-tab:has(input:checked) {
  border-color: var(--indigo); background: var(--indigo-soft); color: var(--indigo);
}
.radio-group { display: flex; flex-wrap: wrap; gap: var(--space-2); }

.form-msg { text-align: center; font-size: 14px; margin-top: var(--space-3); }
.form-msg:not(.show) { display: none; }
.form-msg--ok { color: var(--emerald-fg); }
.form-msg--error { color: var(--rose); }

/* ---------------------------------------------------------------------------
 * 10 · HEADER + FOOTER + NAV
 * ------------------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  border-bottom: 1px solid var(--border);
  background: var(--header-bg);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
}
.site-header__inner {
  max-width: var(--content-max); margin: 0 auto; padding: 13px var(--space-6);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--fg1); text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand__mark { width: 28px; height: 28px; }
.brand__name { font-family: var(--font-display); font-weight: 700; font-size: 15px; letter-spacing: -0.02em; color: var(--fg1); }

.site-footer { background: var(--bg-elevated); border-top: 1px solid var(--border); padding: var(--space-6) 0; }
.site-footer__inner { max-width: var(--content-max); margin: 0 auto; padding: 0 var(--space-6); font-size: 12px; color: var(--fg3); text-align: center; line-height: 1.6; }

/* ---------------------------------------------------------------------------
 * 11 · TRUST BAR (grayed partner logos)
 * ------------------------------------------------------------------------- */
.trust-bar {
  display: flex; align-items: center; justify-content: center;
  gap: var(--space-8); flex-wrap: wrap;
}
.trust-bar__label { display: block; text-align: center; margin-bottom: var(--space-4); }
.trust-logo {
  height: 28px; width: auto; filter: grayscale(1); opacity: 0.55;
  transition: filter var(--dur-base), opacity var(--dur-base);
}
.trust-logo:hover { filter: grayscale(0); opacity: 1; }

/* ---------------------------------------------------------------------------
 * 12 · DECORATIVE HELPERS
 * ------------------------------------------------------------------------- */
.aurora {
  position: absolute; filter: blur(70px); opacity: 0.5; pointer-events: none;
  background: radial-gradient(circle, hsl(245 80% 60% / .7), transparent 62%);
  animation: airm-aurora 16s ease-in-out infinite;
}
.hero-glow {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(55% 60% at 15% 0%, hsl(245 80% 68% / .16), transparent 60%),
              linear-gradient(180deg, hsl(40 30% 98%), var(--bg) 80%);
}

/* ---------------------------------------------------------------------------
 * 13 · KEYFRAMES
 * ------------------------------------------------------------------------- */
@keyframes airm-pulse   { 0%,100% { opacity: 1; } 50% { opacity: .45; } }
@keyframes airm-shimmer { 0% { transform: translateX(-120%); } 60%,100% { transform: translateX(220%); } }
@keyframes airm-aurora  { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(4%,-3%) scale(1.12); } }
@keyframes airm-pop     { 0% { opacity: 0; transform: scale(.7); } 60% { transform: scale(1.06); } 100% { opacity: 1; transform: scale(1); } }
@keyframes airm-spin    { to { transform: rotate(360deg); } }

.animate-pop { animation: airm-pop .5s var(--ease-out) both; }
.spinner {
  width: 2.2rem; height: 2.2rem; border-radius: 50%;
  border: 3px solid var(--border); border-top-color: var(--indigo);
  animation: airm-spin .9s linear infinite;
}

/* ---------------------------------------------------------------------------
 * 14 · UTILITIES
 * ------------------------------------------------------------------------- */
.u-center { text-align: center; }
.u-flex   { display: flex; }
.u-between{ display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); }
.u-wrap   { flex-wrap: wrap; }
.u-gap-2  { gap: var(--space-2); } .u-gap-3 { gap: var(--space-3); } .u-gap-4 { gap: var(--space-4); }
.u-mt-2 { margin-top: var(--space-2); } .u-mt-4 { margin-top: var(--space-4); } .u-mt-6 { margin-top: var(--space-6); }
.u-mb-0 { margin-bottom: 0; }
.u-sticky { position: sticky; top: 78px; }
.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;
}