/* ============================================================================
   Atelis × Bootstrap 5.3 — theme layer
   ----------------------------------------------------------------------------
   Load order matters:
     1. bootstrap.min.css                (CDN or local)
     2. Atelis token files               (tokens/*.css from the design system)
     3. this file
   Everything below is a re-declaration of Bootstrap's own CSS variables using
   Atelis tokens, plus a small set of .atl-* classes for things Bootstrap has no
   primitive for (eyebrows, display type, brand marks, status pills, meters).
   No Sass build required — drop it in wwwroot/css/ and go.
   ========================================================================== */

/* ---------------------------------------------------------------- 1. Palette */
:root {
  --atl-page-max: 1240px;

  --bs-blue: #1E6CA8;
  --bs-primary: var(--atl-blue-900);
  --bs-primary-rgb: 11, 47, 74;
  --bs-secondary: var(--atl-stone-600);
  --bs-secondary-rgb: 107, 100, 89;
  --bs-success: var(--atl-green-600);
  --bs-success-rgb: 46, 125, 91;
  --bs-warning: var(--atl-amber-600);
  --bs-warning-rgb: 201, 130, 31;
  --bs-danger: var(--atl-red-600);
  --bs-danger-rgb: 179, 57, 47;
  --bs-info: var(--atl-blue-500);
  --bs-info-rgb: 30, 108, 168;
  --bs-light: var(--atl-paper);
  --bs-light-rgb: 245, 242, 237;
  --bs-dark: var(--atl-ink);
  --bs-dark-rgb: 26, 24, 20;

  /* Copper is not a Bootstrap theme colour. It is the accent, and it is used
     exactly once per view. Exposed here so .btn-accent / .text-accent can use it. */
  --bs-accent: var(--atl-copper-500);
  --bs-accent-rgb: 224, 138, 90;
}

/* --------------------------------------------------------- 2. Type & surface */
:root {
  --bs-font-sans-serif: var(--atl-font-body);
  --bs-font-monospace: var(--atl-font-mono);
  --bs-body-font-family: var(--atl-font-body);
  --bs-body-font-size: 0.9375rem;      /* 15px — the system minimum on screen */
  --bs-body-font-weight: 400;
  --bs-body-line-height: 1.65;

  --bs-body-color: var(--atl-ink);
  --bs-body-color-rgb: 26, 24, 20;
  --bs-body-bg: var(--atl-paper);
  --bs-body-bg-rgb: 245, 242, 237;

  --bs-emphasis-color: var(--atl-blue-900);
  --bs-emphasis-color-rgb: 11, 47, 74;
  --bs-secondary-color: rgba(26, 24, 20, 0.72);
  --bs-secondary-bg: var(--atl-linen);
  --bs-secondary-bg-rgb: 232, 226, 214;
  --bs-tertiary-color: var(--atl-stone-500);
  --bs-tertiary-bg: var(--atl-paper);
  --bs-tertiary-bg-rgb: 245, 242, 237;

  --bs-heading-color: var(--atl-blue-900);

  --bs-link-color: var(--atl-blue-500);
  --bs-link-color-rgb: 30, 108, 168;
  --bs-link-hover-color: var(--atl-blue-900);
  --bs-link-hover-color-rgb: 11, 47, 74;
  --bs-link-decoration: none;
  --bs-link-hover-decoration: underline;

  --bs-border-color: var(--atl-linen);
  --bs-border-color-translucent: rgba(26, 24, 20, 0.12);
  --bs-border-width: 1px;

  /* Atelis is square. This is the whole of it. */
  --bs-border-radius: 0;
  --bs-border-radius-sm: 0;
  --bs-border-radius-lg: 0;
  --bs-border-radius-xl: 0;
  --bs-border-radius-xxl: 0;
  --bs-border-radius-2xl: 0;
  --bs-border-radius-pill: 0;

  --bs-focus-ring-width: 2px;
  --bs-focus-ring-opacity: 1;
  --bs-focus-ring-color: var(--atl-blue-500);

  /* One easing curve, four durations. The shape of the device. */
  --atl-ease: cubic-bezier(0.2, 0.65, 0.2, 1);
  --atl-dur-1: 90ms;
  --atl-dur-2: 140ms;
  --atl-dur-3: 220ms;
  --atl-dur-4: 340ms;
}

/* ------------------------------------- 3. Inverse / dark scope (Abyssal band)
   Bootstrap 5.3's data-bs-theme is scopeable, so the same declaration powers
   both the global dark toggle and a single Abyssal section on a light page:
     <section class="atl-band-abyssal" data-bs-theme="dark">
   Copper never changes between light and dark. */
[data-bs-theme="dark"] {
  color-scheme: dark;
  --bs-body-color: var(--atl-paper);
  --bs-body-color-rgb: 245, 242, 237;
  --bs-body-bg: var(--atl-blue-900);
  --bs-body-bg-rgb: 11, 47, 74;
  --bs-emphasis-color: #FFFFFF;
  --bs-emphasis-color-rgb: 255, 255, 255;
  --bs-secondary-color: var(--atl-blue-100);
  --bs-secondary-bg: var(--atl-blue-800);
  --bs-secondary-bg-rgb: 16, 62, 97;
  --bs-tertiary-color: var(--atl-blue-300);
  --bs-tertiary-bg: #082439;
  --bs-heading-color: #FFFFFF;
  --bs-link-color: var(--atl-blue-100);
  --bs-link-color-rgb: 156, 195, 224;
  --bs-link-hover-color: #FFFFFF;
  --bs-link-hover-color-rgb: 255, 255, 255;
  --bs-border-color: rgba(156, 195, 224, 0.22);
  --bs-border-color-translucent: rgba(156, 195, 224, 0.22);
  --bs-primary: var(--atl-white);
  --bs-primary-rgb: 255, 255, 255;

  --atl-surface-page: var(--atl-blue-900);
  --atl-surface-card: var(--atl-blue-800);
  --atl-surface-sunken: #082439;
  --atl-text-body: var(--atl-paper);
  --atl-text-heading: var(--atl-white);
  --atl-text-muted: var(--atl-blue-100);
  --atl-text-faint: var(--atl-blue-300);
  --atl-border: rgba(156, 195, 224, 0.22);
}

/* ------------------------------------------------------------- 4. Base rhythm */
body {
  background-color: var(--bs-body-bg);
  color: var(--bs-body-color);
  -webkit-font-smoothing: antialiased;
  text-wrap: pretty;
}
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  font-family: var(--atl-font-brand);
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--bs-heading-color);
}
h1, .h1 { font-size: 1.625rem; line-height: 1.25; }
h2, .h2 { font-size: 1.25rem;  line-height: 1.3; }
h3, .h3 { font-size: 1rem;     line-height: 1.35; }
h4, .h4 { font-size: 0.9375rem; line-height: 1.4; }
h5, .h5, h6, .h6 { font-size: 0.875rem; line-height: 1.4; }

/* Display — Poppins Light, tight leading, negative tracking */
.display-1, .display-2, .display-3, .display-4, .display-5, .display-6,
.atl-display-1, .atl-display-2, .atl-display-3 {
  font-family: var(--atl-font-brand);
  font-weight: 300;
  letter-spacing: -0.01em;
  color: var(--bs-heading-color);
}
.display-1, .atl-display-1 { font-size: clamp(40px, 5.2vw, 68px); line-height: 1.06; }
.display-2, .display-3, .atl-display-2 { font-size: clamp(32px, 3.6vw, 46px); line-height: 1.08; }
.display-4, .display-5, .display-6, .atl-display-3 { font-size: clamp(24px, 2.2vw, 28px); line-height: 1.15; font-weight: 400; }

p { margin-bottom: 1rem; }
.atl-measure { max-width: 68ch; }
.atl-measure-tight { max-width: 46ch; }

a { transition: color var(--atl-dur-2) var(--atl-ease); }
.container, .container-fluid, .container-lg, .container-md, .container-sm,
.container-xl, .container-xxl { --bs-gutter-x: 1.5rem; }
@media (min-width: 1200px) {
  .container, .container-sm, .container-md, .container-lg, .container-xl { max-width: var(--atl-page-max); }
}
@media (min-width: 1400px) {
  .container, .container-sm, .container-md, .container-lg, .container-xl, .container-xxl { max-width: var(--atl-page-max); }
}

/* -------------------------------------------------------- 5. Section scaffold */
.atl-section    { padding-block: 4.5rem; }              /* 72px between majors */
.atl-section-sm { padding-block: 2.5rem; }
.atl-section-lg { padding-block: 6rem; }
@media (max-width: 767.98px) {
  .atl-section    { padding-block: 3rem; }
  .atl-section-lg { padding-block: 3.5rem; }
}
.atl-band-paper   { background-color: var(--atl-paper); }
.atl-band-white   { background-color: var(--atl-white); }
.atl-band-linen   { background-color: var(--atl-linen); }
.atl-band-abyssal { background-color: var(--atl-blue-900); color: var(--atl-paper); }
.atl-band-ink     { background-color: var(--atl-ink); color: var(--atl-paper); }
.atl-band-abyssal .atl-eyebrow, .atl-band-ink .atl-eyebrow { color: var(--atl-copper-500); }
[data-bs-theme="dark"] .atl-band-paper { background-color: var(--atl-blue-900); }
[data-bs-theme="dark"] .atl-band-white { background-color: var(--atl-blue-800); }
[data-bs-theme="dark"] .atl-band-linen { background-color: #082439; }
.atl-hairline-top    { border-top: 1px solid var(--bs-border-color); }
.atl-hairline-bottom { border-bottom: 1px solid var(--bs-border-color); }

/* ------------------------------------------------------ 6. Editorial details */
.atl-eyebrow {
  font: var(--atl-text-eyebrow);
  letter-spacing: var(--atl-tracking-eyebrow);
  text-transform: uppercase;
  color: var(--atl-copper-600);
  display: block;
}
.atl-label {
  font: var(--atl-text-label);
  letter-spacing: var(--atl-tracking-label);
  text-transform: uppercase;
  color: var(--atl-stone-500);
  display: block;
}
[data-bs-theme="dark"] .atl-label { color: var(--atl-blue-300); }
.atl-lead      { font: var(--atl-text-body-lg); color: var(--bs-secondary-color); }
.atl-small     { font: var(--atl-text-body-sm); }
.atl-xs        { font: var(--atl-text-body-xs); }
.atl-mono      { font: var(--atl-text-mono); }
.atl-data-lg   { font: var(--atl-text-data-lg); font-variant-numeric: tabular-nums; color: var(--bs-heading-color); }
.atl-data-md   { font: var(--atl-text-data-md); font-variant-numeric: tabular-nums; color: var(--bs-heading-color); }
.atl-tnum      { font-variant-numeric: tabular-nums; }
.text-accent   { color: var(--atl-copper-500) !important; }
.text-muted-atl { color: var(--bs-secondary-color) !important; }
.text-faint    { color: var(--atl-stone-500) !important; }
[data-bs-theme="dark"] .text-faint { color: var(--atl-blue-300) !important; }
.bg-accent     { background-color: var(--atl-copper-500) !important; color: var(--atl-blue-900) !important; }

/* Content lists — square markers (nothing curves), Signal Blue not copper.
   Scoped to unclassed lists so Bootstrap component <ul>s stay untouched. */
ul:not([class]) {
  list-style: none;
  padding-left: 0;
  margin-bottom: 1.5rem;
}
ul:not([class]) > li {
  position: relative;
  padding-left: 1.375rem;
}
ul:not([class]) > li + li { margin-top: 0.5rem; }
ul:not([class]) > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(0.75em - 3.5px);
  width: 7px;
  height: 7px;
  background-color: var(--atl-blue-500);
}
[data-bs-theme="dark"] ul:not([class]) > li::before { background-color: var(--atl-blue-300); }
ul:not([class]) ul:not([class]) { margin-top: 0.5rem; margin-bottom: 0; }
ol:not([class]) {
  padding-left: 1.375rem;
  margin-bottom: 1.5rem;
}
ol:not([class]) > li + li { margin-top: 0.5rem; }
ol:not([class]) > li::marker {
  color: var(--atl-blue-500);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
[data-bs-theme="dark"] ol:not([class]) > li::marker { color: var(--atl-blue-300); }

/* Arrow link — the standard "read more" affordance */
.atl-link-arrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 500; text-decoration: none;
}
.atl-link-arrow .atl-icon { transition: transform var(--atl-dur-2) var(--atl-ease); }
.atl-link-arrow:hover { text-decoration: none; }
.atl-link-arrow:hover .atl-icon { transform: translateX(3px); }

/* ------------------------------------------------------------- 7. Brand mark */
/* Real supplied artwork, tinted through the token masks. Never live type. */
.atl-logo {
  display: inline-block; position: relative;
  height: 22px; aspect-ratio: var(--atl-art-lockup-ratio);
  flex: none;
}
.atl-logo > i {
  position: absolute; inset: 0; display: block;
  -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat;
  -webkit-mask-position: center; mask-position: center;
  -webkit-mask-size: contain; mask-size: contain;
}
.atl-logo__word   { background: var(--atl-blue-900); -webkit-mask-image: var(--atl-art-lockup-word); mask-image: var(--atl-art-lockup-word); }
.atl-logo__device { background: var(--atl-copper-500); -webkit-mask-image: var(--atl-art-lockup-device); mask-image: var(--atl-art-lockup-device); }
.atl-logo--reversed .atl-logo__word { background: var(--atl-white); }
.atl-logo--mono .atl-logo__word,
.atl-logo--mono .atl-logo__device { background: currentColor; }
[data-bs-theme="dark"] .atl-logo__word { background: var(--atl-white); }
.atl-logo--lg { height: 34px; }
.atl-logo--sm { height: 18px; }

.atl-device {
  display: block; height: 12px; aspect-ratio: var(--atl-art-device-ratio);
  background: var(--atl-copper-500);
  -webkit-mask: var(--atl-art-device) no-repeat center / contain;
  mask: var(--atl-art-device) no-repeat center / contain;
}
.atl-rule { display: flex; align-items: center; gap: 0.75rem; }
.atl-rule::after { content: ""; flex: 1; height: 1px; background: var(--bs-border-color); }

/* ---------------------------------------------------------------- 8. Buttons */
.btn {
  --bs-btn-font-family: var(--atl-font-body);
  --bs-btn-font-size: 0.875rem;
  --bs-btn-font-weight: 500;
  --bs-btn-line-height: 1.2;
  --bs-btn-padding-x: 1.25rem;
  --bs-btn-padding-y: 0.75rem;
  --bs-btn-border-radius: 0;
  --bs-btn-focus-shadow-rgb: 30, 108, 168;
  --bs-btn-disabled-opacity: 0.42;
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 44px;                     /* touch targets never below 44px */
  transition: background-color var(--atl-dur-2) var(--atl-ease),
              border-color var(--atl-dur-2) var(--atl-ease),
              color var(--atl-dur-2) var(--atl-ease);
}
.btn:active, .btn.active { transform: none; }   /* nothing lifts, scales or shrinks */
.btn-lg { --bs-btn-font-size: 0.9375rem; --bs-btn-padding-x: 1.75rem; --bs-btn-padding-y: 0.9375rem; min-height: 52px; }
.btn-sm { --bs-btn-font-size: 0.8125rem; --bs-btn-padding-x: 0.875rem; --bs-btn-padding-y: 0.5rem; min-height: 40px; }
.btn:focus-visible { outline: 2px solid var(--atl-blue-500); outline-offset: 2px; box-shadow: none; }

.btn-primary {
  --bs-btn-bg: var(--atl-blue-900); --bs-btn-border-color: var(--atl-blue-900); --bs-btn-color: #fff;
  --bs-btn-hover-bg: var(--atl-blue-800); --bs-btn-hover-border-color: var(--atl-blue-800); --bs-btn-hover-color: #fff;
  --bs-btn-active-bg: #082439; --bs-btn-active-border-color: #082439; --bs-btn-active-color: #fff;
  --bs-btn-disabled-bg: var(--atl-blue-900); --bs-btn-disabled-border-color: var(--atl-blue-900); --bs-btn-disabled-color: #fff;
}
.btn-accent {
  --bs-btn-bg: var(--atl-copper-500); --bs-btn-border-color: var(--atl-copper-500); --bs-btn-color: var(--atl-blue-900);
  --bs-btn-hover-bg: var(--atl-copper-600); --bs-btn-hover-border-color: var(--atl-copper-600); --bs-btn-hover-color: #fff;
  --bs-btn-active-bg: var(--atl-copper-700); --bs-btn-active-border-color: var(--atl-copper-700); --bs-btn-active-color: #fff;
  --bs-btn-disabled-bg: var(--atl-copper-500); --bs-btn-disabled-border-color: var(--atl-copper-500); --bs-btn-disabled-color: var(--atl-blue-900);
}
.btn-secondary {
  --bs-btn-bg: transparent; --bs-btn-border-color: var(--atl-stone-300); --bs-btn-color: var(--atl-blue-900);
  --bs-btn-hover-bg: var(--atl-linen); --bs-btn-hover-border-color: var(--atl-stone-600); --bs-btn-hover-color: var(--atl-blue-900);
  --bs-btn-active-bg: var(--atl-stone-300); --bs-btn-active-border-color: var(--atl-stone-600); --bs-btn-active-color: var(--atl-blue-900);
  --bs-btn-disabled-bg: transparent; --bs-btn-disabled-border-color: var(--atl-stone-300); --bs-btn-disabled-color: var(--atl-blue-900);
}
.btn-outline-primary {
  --bs-btn-color: var(--atl-blue-900); --bs-btn-border-color: var(--atl-blue-900);
  --bs-btn-hover-bg: var(--atl-blue-900); --bs-btn-hover-border-color: var(--atl-blue-900); --bs-btn-hover-color: #fff;
  --bs-btn-active-bg: #082439; --bs-btn-active-border-color: #082439;
}
.btn-outline-light {
  --bs-btn-color: var(--atl-paper); --bs-btn-border-color: rgba(245, 242, 237, 0.45);
  --bs-btn-hover-bg: rgba(245, 242, 237, 0.12); --bs-btn-hover-border-color: var(--atl-paper); --bs-btn-hover-color: #fff;
  --bs-btn-active-bg: rgba(245, 242, 237, 0.2); --bs-btn-active-color: #fff;
}
.btn-link {
  --bs-btn-color: var(--atl-blue-500); --bs-btn-hover-color: var(--atl-blue-900);
  --bs-btn-padding-x: 0; text-decoration: none; font-weight: 500;
}
.btn-ghost {
  --bs-btn-bg: transparent; --bs-btn-border-color: transparent; --bs-btn-color: var(--bs-body-color);
  --bs-btn-hover-bg: var(--atl-linen); --bs-btn-hover-border-color: transparent; --bs-btn-hover-color: var(--atl-blue-900);
}
[data-bs-theme="dark"] .btn-ghost { --bs-btn-hover-bg: rgba(156, 195, 224, 0.14); --bs-btn-hover-color: #fff; }
[data-bs-theme="dark"] .btn-secondary {
  --bs-btn-color: var(--atl-paper); --bs-btn-border-color: rgba(156, 195, 224, 0.42);
  --bs-btn-hover-bg: rgba(156, 195, 224, 0.14); --bs-btn-hover-color: #fff; --bs-btn-hover-border-color: var(--atl-blue-100);
}
.btn-group > .btn { border-radius: 0 !important; }
.atl-btn-icon {
  min-height: 44px; min-width: 44px; padding: 0;
  display: inline-flex; align-items: center; justify-content: center;
}

/* ----------------------------------------------------------------- 9. Icons */
.atl-icon {
  width: 20px; height: 20px; flex: none;
  fill: none; stroke: currentColor; stroke-width: 1.5;
  stroke-linecap: round; stroke-linejoin: round;
}
.atl-icon-sm { width: 16px; height: 16px; }
.atl-icon-lg { width: 24px; height: 24px; }
.atl-icon-xl { width: 32px; height: 32px; stroke-width: 1.25; }

/* ------------------------------------------------------------------ 10. Cards */
.card {
  --bs-card-bg: var(--atl-white);
  --bs-card-border-color: var(--atl-linen);
  --bs-card-border-radius: 0;
  --bs-card-inner-border-radius: 0;
  --bs-card-spacer-x: 1.5rem;
  --bs-card-spacer-y: 1.5rem;
  --bs-card-cap-bg: transparent;
  --bs-card-cap-padding-y: 1rem;
  box-shadow: none;                     /* rules and colour separate content */
}
[data-bs-theme="dark"] .card { --bs-card-bg: var(--atl-blue-800); --bs-card-border-color: rgba(156, 195, 224, 0.22); }
.card-header {
  font-family: var(--atl-font-brand); font-weight: 500; font-size: 1rem;
  color: var(--bs-heading-color); border-bottom-color: var(--bs-card-border-color);
}
.card-title { font-family: var(--atl-font-brand); font-weight: 500; }
/* Exactly one card in a set earns the copper border. */
.card-accent { border: 2px solid var(--atl-copper-500); }
.card-sunken { --bs-card-bg: var(--atl-paper); }
[data-bs-theme="dark"] .card-sunken { --bs-card-bg: #082439; }
.card-hover { transition: border-color var(--atl-dur-2) var(--atl-ease), background-color var(--atl-dur-2) var(--atl-ease); }
.card-hover:hover { border-color: var(--atl-stone-600); }
[data-bs-theme="dark"] .card-hover:hover { border-color: var(--atl-blue-100); }
.card-link-block { text-decoration: none; color: inherit; display: block; }
.card-link-block:hover { text-decoration: none; color: inherit; }

/* ------------------------------------------------------------------ 11. Forms */
.form-label {
  font: var(--atl-text-label); letter-spacing: var(--atl-tracking-label);
  text-transform: uppercase; color: var(--atl-stone-600); margin-bottom: 0.375rem;
}
[data-bs-theme="dark"] .form-label { color: var(--atl-blue-100); }
.form-control, .form-select {
  --bs-border-radius: 0;
  background-color: var(--atl-white);
  border-color: var(--atl-stone-300);
  color: var(--bs-body-color);
  font-size: 0.9375rem;
  min-height: 44px;
  padding: 0.625rem 0.875rem;
  transition: border-color var(--atl-dur-2) var(--atl-ease);
}
[data-bs-theme="dark"] .form-control, [data-bs-theme="dark"] .form-select {
  background-color: #082439; border-color: rgba(156, 195, 224, 0.42);
}
.form-control::placeholder { color: var(--atl-stone-500); }
.form-control:focus, .form-select:focus {
  border-color: var(--atl-blue-500);
  box-shadow: 0 0 0 2px var(--atl-blue-500);
  background-color: var(--atl-white);
}
[data-bs-theme="dark"] .form-control:focus, [data-bs-theme="dark"] .form-select:focus { background-color: #082439; }
.form-control-lg, .form-select-lg { min-height: 52px; font-size: 1rem; }
.form-control-sm, .form-select-sm { min-height: 40px; font-size: 0.875rem; }
.form-text { font: var(--atl-text-body-xs); color: var(--atl-stone-600); }
.input-group > .form-control, .input-group > .form-select, .input-group > .btn { border-radius: 0 !important; }
.input-group-text {
  border-radius: 0; background-color: var(--atl-paper);
  border-color: var(--atl-stone-300); color: var(--atl-stone-600); font-size: 0.875rem;
}
.is-invalid ~ .invalid-feedback, .invalid-feedback { font: var(--atl-text-body-xs); color: var(--atl-red-600); }
.valid-feedback { font: var(--atl-text-body-xs); color: var(--atl-green-600); }
.form-control.is-invalid, .form-select.is-invalid { border-color: var(--atl-red-600); background-image: none; }
.form-control.is-valid, .form-select.is-valid { border-color: var(--atl-green-600); background-image: none; }
.form-check-input {
  border-radius: 0; border-color: var(--atl-stone-600); width: 1.125rem; height: 1.125rem;
  margin-top: 0.22rem; background-color: var(--atl-white);
}
.form-check-input:checked { background-color: var(--atl-blue-900); border-color: var(--atl-blue-900); }
.form-check-input:focus { border-color: var(--atl-blue-500); box-shadow: 0 0 0 2px var(--atl-blue-500); }
.form-check-input[type="radio"] { border-radius: 50%; }         /* the radio dot is a permitted curve */
.form-switch .form-check-input { border-radius: 999px; width: 2.25rem; height: 1.25rem; }
.form-check-label { font-size: 0.9375rem; }
.form-floating > label { color: var(--atl-stone-600); }

/* --------------------------------------------------------------- 12. Tables */
.table {
  --bs-table-bg: transparent;
  --bs-table-border-color: var(--atl-linen);
  --bs-table-color: var(--bs-body-color);
  --bs-table-striped-bg: var(--atl-paper);
  --bs-table-hover-bg: var(--atl-paper);
  font-size: 0.9375rem;
  font-variant-numeric: tabular-nums;
}
[data-bs-theme="dark"] .table {
  --bs-table-border-color: rgba(156, 195, 224, 0.22);
  --bs-table-striped-bg: rgba(156, 195, 224, 0.06);
  --bs-table-hover-bg: rgba(156, 195, 224, 0.08);
  --bs-table-color: var(--atl-paper);
}
.table > thead th {
  font: var(--atl-text-label); letter-spacing: var(--atl-tracking-label);
  text-transform: uppercase; color: var(--atl-stone-600);
  border-bottom: 1px solid var(--atl-stone-300); padding-block: 0.75rem;
  white-space: nowrap;
}
[data-bs-theme="dark"] .table > thead th { color: var(--atl-blue-100); border-bottom-color: rgba(156, 195, 224, 0.42); }
.table > tbody td, .table > tbody th { padding-block: 0.875rem; vertical-align: middle; }
.table-compare th:first-child { text-align: left; }
.table-compare td { text-align: center; }

/* ------------------------------------------------- 13. Badges, tags, status */
.badge {
  --bs-badge-border-radius: 0;
  --bs-badge-font-weight: 600;
  --bs-badge-font-size: 0.6875rem;
  --bs-badge-padding-x: 0.5rem;
  --bs-badge-padding-y: 0.3125rem;
  letter-spacing: 0.08em; text-transform: uppercase;
}
.badge-accent { background-color: var(--atl-copper-500); color: var(--atl-blue-900); }
.badge-outline { background: transparent; border: 1px solid var(--bs-border-color); color: var(--bs-body-color); }
.atl-tag {
  display: inline-flex; align-items: center; gap: 0.375rem;
  padding: 0.25rem 0.5rem; font: var(--atl-text-body-xs);
  background: var(--atl-paper); border: 1px solid var(--atl-linen); color: var(--atl-stone-600);
}
[data-bs-theme="dark"] .atl-tag { background: #082439; border-color: rgba(156, 195, 224, 0.22); color: var(--atl-blue-100); }
.atl-status {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.8125rem; font-weight: 500; color: var(--bs-body-color);
}
.atl-status__dot { width: 8px; height: 8px; border-radius: 50%; flex: none; background: var(--atl-stone-500); }
.atl-status--ok   .atl-status__dot { background: var(--atl-green-600); }
.atl-status--warn .atl-status__dot { background: var(--atl-amber-600); }
.atl-status--down .atl-status__dot { background: var(--atl-red-600); }
.atl-status--ok   { color: var(--atl-green-600); }
.atl-status--warn { color: var(--atl-amber-600); }
.atl-status--down { color: var(--atl-red-600); }
[data-bs-theme="dark"] .atl-status--ok { color: #7FC9A6; }
[data-bs-theme="dark"] .atl-status--ok .atl-status__dot { background: #7FC9A6; }
.atl-status--boxed { padding: 0.375rem 0.625rem; border: 1px solid currentColor; }

/* ------------------------------------------------ 14. Progress & usage meters */
.progress, .progress-stacked {
  --bs-progress-bg: var(--atl-linen);
  --bs-progress-border-radius: 0;
  --bs-progress-bar-bg: var(--atl-blue-900);
  --bs-progress-height: 8px;
  --bs-progress-bar-transition: width var(--atl-dur-4) var(--atl-ease);
}
[data-bs-theme="dark"] .progress { --bs-progress-bg: rgba(156, 195, 224, 0.2); --bs-progress-bar-bg: var(--atl-blue-100); }
.progress-bar-accent { background-color: var(--atl-copper-500); }
.atl-meter { display: flex; align-items: flex-end; gap: 3px; height: 72px; }
.atl-meter__bar { flex: 1; background: var(--atl-blue-100); min-height: 2px; }
.atl-meter__bar--peak { background: var(--atl-copper-500); }
[data-bs-theme="dark"] .atl-meter__bar { background: rgba(156, 195, 224, 0.45); }

/* --------------------------------------------------------- 15. Nav & tabs */
.nav-tabs {
  --bs-nav-tabs-border-radius: 0;
  --bs-nav-tabs-border-color: var(--bs-border-color);
  --bs-nav-tabs-link-active-color: var(--atl-blue-900);
  --bs-nav-tabs-link-active-bg: transparent;
  --bs-nav-tabs-link-active-border-color: transparent transparent var(--atl-copper-500);
  --bs-nav-link-color: var(--bs-secondary-color);
  --bs-nav-link-font-size: 0.9375rem;
  --bs-nav-link-font-weight: 500;
  --bs-nav-tabs-border-width: 2px;
}
.nav-tabs .nav-link { border-color: transparent; margin-bottom: -2px; padding: 0.75rem 0; margin-right: 1.75rem; }
.nav-tabs .nav-link:hover { border-color: transparent transparent var(--atl-stone-300); }
[data-bs-theme="dark"] .nav-tabs { --bs-nav-tabs-link-active-color: #fff; }
.nav-pills {
  --bs-nav-pills-border-radius: 0;
  --bs-nav-pills-link-active-bg: var(--atl-blue-900);
  --bs-nav-link-color: var(--bs-body-color);
  --bs-nav-link-font-size: 0.875rem;
  --bs-nav-link-font-weight: 500;
}
.nav-pills .nav-link { border: 1px solid var(--bs-border-color); }
.nav-pills .nav-link + .nav-link { margin-left: -1px; }
.nav-link:focus-visible { outline: 2px solid var(--atl-blue-500); outline-offset: 2px; box-shadow: none; }

/* Site header nav — copper underline marks the current page */
.atl-nav .nav-link {
  color: var(--atl-blue-100); font-size: 0.875rem; font-weight: 400;
  padding: 0.5rem 0; border-bottom: 2px solid transparent;
}
.atl-nav .nav-link:hover { color: #fff; }
.atl-nav .nav-link[aria-current="page"] { color: #fff; border-bottom-color: var(--atl-copper-500); }
.atl-topbar { background: var(--atl-blue-900); border-bottom: 1px solid rgba(156, 195, 224, 0.18); }
.atl-topbar a { color: var(--atl-blue-100); font-size: 0.75rem; text-decoration: none; }
.atl-topbar a:hover, .atl-topbar a[aria-current="page"] { color: var(--atl-copper-500); }
.atl-header--sticky { position: sticky; top: 0; z-index: 1030; }

/* ------------------------------------------------------ 16. Dropdown & menus */
.dropdown-menu {
  --bs-dropdown-border-radius: 0;
  --bs-dropdown-border-color: var(--atl-linen);
  --bs-dropdown-bg: var(--atl-white);
  --bs-dropdown-link-hover-bg: var(--atl-paper);
  --bs-dropdown-link-active-bg: var(--atl-blue-900);
  --bs-dropdown-font-size: 0.9375rem;
  --bs-dropdown-item-padding-y: 0.5rem;
  box-shadow: 0 12px 28px rgba(11, 47, 74, 0.16);
}
[data-bs-theme="dark"] .dropdown-menu { --bs-dropdown-bg: var(--atl-blue-800); --bs-dropdown-link-hover-bg: #082439; }
.dropdown-header { font: var(--atl-text-label); letter-spacing: var(--atl-tracking-label); text-transform: uppercase; }

/* ------------------------------------------------------------ 17. Accordion */
.accordion {
  --bs-accordion-border-radius: 0;
  --bs-accordion-inner-border-radius: 0;
  --bs-accordion-border-color: var(--bs-border-color);
  --bs-accordion-bg: transparent;
  --bs-accordion-btn-focus-box-shadow: none;
  --bs-accordion-active-bg: transparent;
  --bs-accordion-active-color: var(--atl-blue-900);
  --bs-accordion-btn-padding-y: 1.125rem;
  --bs-accordion-btn-padding-x: 0;
  --bs-accordion-body-padding-x: 0;
  --bs-accordion-btn-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230B2F4A' stroke-width='1.5' stroke-linecap='round'%3e%3cpath d='m6 9 6 6 6-6'/%3e%3c/svg%3e");
  --bs-accordion-btn-active-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23E08A5A' stroke-width='1.5' stroke-linecap='round'%3e%3cpath d='m6 9 6 6 6-6'/%3e%3c/svg%3e");
}
[data-bs-theme="dark"] .accordion {
  --bs-accordion-active-color: #fff;
  --bs-accordion-btn-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239CC3E0' stroke-width='1.5' stroke-linecap='round'%3e%3cpath d='m6 9 6 6 6-6'/%3e%3c/svg%3e");
}
.accordion-button {
  font-family: var(--atl-font-brand); font-weight: 500; font-size: 1rem;
  color: var(--bs-heading-color); box-shadow: none !important;
}
.accordion-item { border-left: 0; border-right: 0; border-top: 0; }
.accordion-item:first-of-type { border-top: 1px solid var(--bs-accordion-border-color); }

/* ----------------------------------------------- 18. Modal, offcanvas, toast */
.modal-content {
  --bs-modal-border-radius: 0;
  --bs-modal-border-color: transparent;
  --bs-modal-bg: var(--atl-white);
  --bs-modal-padding: 1.75rem;
  box-shadow: 0 24px 64px rgba(11, 47, 74, 0.28);   /* shadow: floating layers only */
}
[data-bs-theme="dark"] .modal-content { --bs-modal-bg: var(--atl-blue-800); }
.modal-header { border-bottom: 1px solid var(--bs-border-color); padding-bottom: 1rem; }
.modal-title { font-family: var(--atl-font-brand); font-weight: 500; font-size: 1.25rem; }
.modal-footer { border-top: 1px solid var(--bs-border-color); gap: 0.5rem; }
.modal-footer > * { margin: 0; }
.modal-backdrop { --bs-backdrop-bg: var(--atl-ink); --bs-backdrop-opacity: 0.62; }
.btn-close { --bs-btn-close-focus-shadow: none; border-radius: 0; opacity: 0.6; }
.btn-close:hover { opacity: 1; }
[data-bs-theme="dark"] .btn-close { filter: invert(1) grayscale(1) brightness(2); }

.offcanvas { --bs-offcanvas-bg: var(--atl-blue-900); --bs-offcanvas-border-color: transparent; --bs-offcanvas-padding-x: 1.5rem; }
.offcanvas-title { font-family: var(--atl-font-brand); font-weight: 500; }
.offcanvas .nav-link { color: var(--atl-paper); font-size: 1.0625rem; padding: 0.875rem 0; border-bottom: 1px solid rgba(156, 195, 224, 0.18); }
.offcanvas .nav-link[aria-current="page"] { color: var(--atl-copper-500); }

.toast {
  --bs-toast-border-radius: 0; --bs-toast-bg: var(--atl-blue-900);
  --bs-toast-border-color: transparent; --bs-toast-color: var(--atl-paper);
  --bs-toast-header-bg: transparent; --bs-toast-header-color: var(--atl-white);
  box-shadow: 0 16px 40px rgba(11, 47, 74, 0.3);
}
.toast-header { border-bottom: 1px solid rgba(156, 195, 224, 0.22); font-weight: 500; }
.toast-header .btn-close { filter: invert(1) grayscale(1) brightness(2); }

.alert {
  --bs-alert-border-radius: 0; --bs-alert-border: 1px solid;
  font-size: 0.9375rem; display: flex; gap: 0.75rem; align-items: flex-start;
}
.alert-info    { --bs-alert-color: var(--atl-blue-900); --bs-alert-bg: var(--atl-blue-050); --bs-alert-border-color: var(--atl-blue-100); }
.alert-success { --bs-alert-color: #1F5A41; --bs-alert-bg: var(--atl-green-100); --bs-alert-border-color: #9AC9B4; }
.alert-warning { --bs-alert-color: #8A5A12; --bs-alert-bg: var(--atl-amber-100); --bs-alert-border-color: #E7C489; }
.alert-danger  { --bs-alert-color: #8C2A22; --bs-alert-bg: var(--atl-red-100); --bs-alert-border-color: #E2A9A3; }
.alert-accent  { --bs-alert-color: var(--atl-copper-700); --bs-alert-bg: var(--atl-copper-100); --bs-alert-border-color: var(--atl-copper-300); }

.tooltip { --bs-tooltip-border-radius: 0; --bs-tooltip-bg: var(--atl-ink); --bs-tooltip-opacity: 1; --bs-tooltip-font-size: 0.8125rem; }
.popover {
  --bs-popover-border-radius: 0; --bs-popover-border-color: var(--atl-linen);
  --bs-popover-bg: var(--atl-white); --bs-popover-font-size: 0.875rem;
  box-shadow: 0 12px 28px rgba(11, 47, 74, 0.16);
}
.popover-header { font-family: var(--atl-font-brand); font-weight: 500; background: transparent; border-bottom-color: var(--atl-linen); }

/* -------------------------------------------------- 19. Pagination & crumbs */
.pagination {
  --bs-pagination-border-radius: 0;
  --bs-pagination-color: var(--bs-body-color);
  --bs-pagination-border-color: var(--bs-border-color);
  --bs-pagination-hover-bg: var(--atl-linen);
  --bs-pagination-hover-color: var(--atl-blue-900);
  --bs-pagination-active-bg: var(--atl-blue-900);
  --bs-pagination-active-border-color: var(--atl-blue-900);
  --bs-pagination-focus-box-shadow: none;
  --bs-pagination-padding-x: 0.875rem;
  --bs-pagination-padding-y: 0.625rem;
  --bs-pagination-bg: transparent;
}
.breadcrumb {
  --bs-breadcrumb-divider-color: var(--atl-stone-500);
  --bs-breadcrumb-item-padding-x: 0.625rem;
  --bs-breadcrumb-font-size: 0.8125rem;
  --bs-breadcrumb-margin-bottom: 0;
}
.breadcrumb-item + .breadcrumb-item::before { content: "/"; }
.breadcrumb-item.active { color: var(--bs-secondary-color); }

.list-group {
  --bs-list-group-border-radius: 0;
  --bs-list-group-border-color: var(--bs-border-color);
  --bs-list-group-bg: transparent;
  --bs-list-group-action-hover-bg: var(--atl-paper);
  --bs-list-group-active-bg: var(--atl-blue-900);
  --bs-list-group-active-border-color: var(--atl-blue-900);
}
[data-bs-theme="dark"] .list-group { --bs-list-group-action-hover-bg: #082439; }

/* -------------------------------------------- 20. Stepper, timeline, KPI, etc */
.atl-steps { display: flex; gap: 0; list-style: none; padding: 0; margin: 0; counter-reset: atl-step; }
.atl-steps__item {
  flex: 1; counter-increment: atl-step; padding: 0.875rem 1rem 0.875rem 0;
  border-top: 2px solid var(--bs-border-color);
  font-size: 0.8125rem; color: var(--atl-stone-500);
  display: flex; align-items: baseline; gap: 0.5rem;
}
.atl-steps__item::before {
  content: counter(atl-step); font: var(--atl-text-mono); color: inherit;
}
.atl-steps__item--done { border-top-color: var(--atl-blue-900); color: var(--bs-secondary-color); }
.atl-steps__item--current { border-top-color: var(--atl-copper-500); color: var(--bs-heading-color); font-weight: 500; }

.atl-timeline { list-style: none; margin: 0; padding: 0; }
.atl-timeline__item { display: grid; grid-template-columns: 88px 1fr; gap: 1.25rem; padding-bottom: 1.75rem; position: relative; }
.atl-timeline__item::before {
  content: ""; position: absolute; left: 96px; top: 1.1rem; bottom: -0.4rem; width: 1px; background: var(--bs-border-color);
}
.atl-timeline__item:last-child::before { display: none; }
.atl-timeline__dot {
  position: absolute; left: 92px; top: 0.4rem; width: 9px; height: 9px;
  background: var(--atl-stone-300); border-radius: 50%;
}
.atl-timeline__item--now .atl-timeline__dot { background: var(--atl-copper-500); }
.atl-timeline__when { font: var(--atl-text-mono); color: var(--atl-stone-500); padding-top: 0.2rem; }

.atl-kpi { display: flex; flex-direction: column; gap: 0.25rem; }
.atl-kpi__value { font: var(--atl-text-data-lg); font-variant-numeric: tabular-nums; color: var(--bs-heading-color); }
.atl-kpi--accent .atl-kpi__value { color: var(--atl-copper-500); }

.atl-empty { text-align: center; padding: 3.5rem 1.5rem; border: 1px dashed var(--bs-border-color); }
.atl-skeleton { background: var(--atl-linen); height: 12px; }
[data-bs-theme="dark"] .atl-skeleton { background: rgba(156, 195, 224, 0.18); }
.atl-skeleton--text { height: 12px; margin-bottom: 8px; }
.atl-skeleton--title { height: 22px; width: 52%; margin-bottom: 14px; }
.atl-skeleton--block { height: 140px; }

/* Documentary photography: square crops, full-bleed or flush to a column edge */
.atl-media { display: block; width: 100%; object-fit: cover; background: var(--atl-ink); }
.atl-media--square { aspect-ratio: 1 / 1; }
.atl-media--wide { aspect-ratio: 16 / 9; }
.atl-media--portrait { aspect-ratio: 4 / 5; }
.atl-plate { background: var(--atl-blue-900); color: var(--atl-paper); }   /* solid plate, never a gradient scrim */
.atl-figure { position: relative; }
.atl-figure__caption {
  position: absolute; left: 0; bottom: 0; background: var(--atl-blue-900); color: var(--atl-paper);
  font: var(--atl-text-body-xs); padding: 0.5rem 0.75rem; max-width: 80%;
}

/* Hairline-separated cells. Outlines rather than a background rule, so an
   incomplete last row leaves no filled gap. */
.atl-feature-grid { display: grid; gap: 1px; }
.atl-feature-grid > * { outline: 1px solid var(--bs-border-color); padding: 1.75rem; }

/* Footer */
.atl-footer { background: var(--atl-ink); color: var(--atl-paper); }
.atl-footer a { color: rgba(245, 242, 237, 0.72); font-size: 0.875rem; text-decoration: none; }
.atl-footer a:hover { color: #fff; text-decoration: none; }
.atl-footer .atl-label { color: rgba(245, 242, 237, 0.45); }

/* ------------------------------------------------------------ 21. Motion & a11y */
.visually-hidden-focusable:focus { outline: 2px solid var(--atl-blue-500); }
:focus-visible { outline: 2px solid var(--atl-blue-500); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 1ms !important; animation-duration: 1ms !important; }
}
/* The one brand animation: the wave draws itself, once, node last. Never loops. */
@keyframes atl-draw { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }
.atl-draw { animation: atl-draw var(--atl-dur-4) var(--atl-ease) both; }