/*
 * DEPO front — core layer (page builder, OpenSpec add-page-builder, contract §4).
 *
 * Layer order is declared here and in default.css with the same list: core (skeleton) is the
 * weakest, default (site look) overrides it, page (css/pages/<type>.css) wins over both.
 * Own class names, no Bootstrap:
 *   container   .c  (.c--text narrow)
 *   grid        .g  12 columns, gap --g-gap; children .g-<n>, .g-sm-<n> (>=600), .g-md-<n> (>=840), .g-lg-<n> (>=1120)
 *   spacing     --s-1 … --s-8
 *   blocks      .b  .b-<type>  .p-<preset>  (preset grid-1 … grid-4 for section_grid)
 *   options     data-o-<key>="<value>" on the block root (whitelisted by the renderer)
 * Colours, fonts and radius come from the tokens of default.css and /theme.css (--dp-*), with
 * fallbacks so this file works alone.
 */
@layer core, default, page;

@layer core {
  :root {
    --s-1: 4px;
    --s-2: 8px;
    --s-3: 12px;
    --s-4: 16px;
    --s-5: 24px;
    --s-6: 40px;
    --s-7: 64px;
    --s-8: 96px;
    --g-gap: var(--s-5);
    --c-max: var(--dp-max, 1440px);
    --c-pad: var(--dp-edge, clamp(16px, 3vw, 48px));
    --c-text: 760px;
  }

  /* ── container ─────────────────────────────────────────────────────────────────────────── */
  .c { width: 100%; max-width: var(--c-max); margin-inline: auto; padding-inline: var(--c-pad); }
  .c--text { max-width: calc(var(--c-text) + 2 * var(--c-pad)); }

  /* ── grid: 12 columns; a child without a class takes the whole row (stacks on phones) ───── */
  .g { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: var(--g-gap); align-items: start; }
  .g > * { grid-column: span 12; min-width: 0; }
  .g-1 { grid-column: span 1; } .g-2 { grid-column: span 2; } .g-3 { grid-column: span 3; }
  .g-4 { grid-column: span 4; } .g-5 { grid-column: span 5; } .g-6 { grid-column: span 6; }
  .g-7 { grid-column: span 7; } .g-8 { grid-column: span 8; } .g-9 { grid-column: span 9; }
  .g-10 { grid-column: span 10; } .g-11 { grid-column: span 11; } .g-12 { grid-column: span 12; }
  @media (min-width: 600px) {
    .g-sm-1 { grid-column: span 1; } .g-sm-2 { grid-column: span 2; } .g-sm-3 { grid-column: span 3; }
    .g-sm-4 { grid-column: span 4; } .g-sm-5 { grid-column: span 5; } .g-sm-6 { grid-column: span 6; }
    .g-sm-7 { grid-column: span 7; } .g-sm-8 { grid-column: span 8; } .g-sm-9 { grid-column: span 9; }
    .g-sm-10 { grid-column: span 10; } .g-sm-11 { grid-column: span 11; } .g-sm-12 { grid-column: span 12; }
  }
  @media (min-width: 840px) {
    .g-md-1 { grid-column: span 1; } .g-md-2 { grid-column: span 2; } .g-md-3 { grid-column: span 3; }
    .g-md-4 { grid-column: span 4; } .g-md-5 { grid-column: span 5; } .g-md-6 { grid-column: span 6; }
    .g-md-7 { grid-column: span 7; } .g-md-8 { grid-column: span 8; } .g-md-9 { grid-column: span 9; }
    .g-md-10 { grid-column: span 10; } .g-md-11 { grid-column: span 11; } .g-md-12 { grid-column: span 12; }
  }
  @media (min-width: 1120px) {
    .g-lg-1 { grid-column: span 1; } .g-lg-2 { grid-column: span 2; } .g-lg-3 { grid-column: span 3; }
    .g-lg-4 { grid-column: span 4; } .g-lg-5 { grid-column: span 5; } .g-lg-6 { grid-column: span 6; }
    .g-lg-7 { grid-column: span 7; } .g-lg-8 { grid-column: span 8; } .g-lg-9 { grid-column: span 9; }
    .g-lg-10 { grid-column: span 10; } .g-lg-11 { grid-column: span 11; } .g-lg-12 { grid-column: span 12; }
  }

  /* ── blocks: common ────────────────────────────────────────────────────────────────────── */
  .b { position: relative; margin: 0; }
  .b > .c { padding-block: 0; }
  /* options of the preset (options_schema); only whitelisted keys/values reach the markup */
  .b[data-o-gap="none"] { --g-gap: 0px; }
  .b[data-o-gap="s"] { --g-gap: var(--s-3); }
  .b[data-o-gap="m"] { --g-gap: var(--s-5); }
  .b[data-o-gap="l"] { --g-gap: var(--s-6); }
  .b[data-o-pad="s"] { padding-block: var(--s-4); }
  .b[data-o-pad="m"] { padding-block: var(--s-6); }
  .b[data-o-pad="l"] { padding-block: var(--s-7); }
  .b[data-o-align="center"] { text-align: center; }
  .b[data-o-align="end"] { text-align: end; }
  .b[data-o-bg] { background: var(--b-bg, transparent); }
  .b[data-o-bg="surface"] { --b-bg: var(--dp-paper, #232227); }
  .b[data-o-bg="raised"] { --b-bg: var(--dp-raise, #2c2b31); }
  .b[data-o-bg="deep"] { --b-bg: var(--dp-deep, #0f2a1a); }
  .b[data-o-bg="accent"] { --b-bg: var(--dp-green, #469a58); }
  .b[data-o-bg="ground"] { --b-bg: var(--dp-ground, #18171a); }

  /* ── typography on the tokens ──────────────────────────────────────────────────────────── */
  .b-header, .b-heading { padding-block: var(--s-4) var(--s-2); }
  .b-header :is(h1, h2, h3, h4), .b-heading :is(h1, h2, h3, h4) { margin: 0; font-family: var(--dp-font-display, system-ui, sans-serif); line-height: 1.15; letter-spacing: -0.01em; }
  .b-heading h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
  .b-heading h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
  .b-heading h3 { font-size: clamp(1.3rem, 2.4vw, 1.6rem); }
  .b-heading h4 { font-size: 1.15rem; }
  .b-heading__sub { margin: var(--s-2) 0 0; color: var(--dp-soft, #b9b6ae); font-size: 1.1rem; }
  .b-paragraph { padding-block: var(--s-2); }
  .b-paragraph p { margin: 0; max-width: 68ch; }
  .b-paragraph a, .b-html a, .b-form a { color: var(--dp-yellow, #ffb500); text-underline-offset: 3px; }
  .b-paragraph.p-lead p { font-size: 1.25rem; color: var(--dp-soft, #b9b6ae); }

  /* ── section_grid: nested columns; presets set the split, all stack on phones ──────────── */
  .b-section_grid { padding-block: var(--s-5); }
  .b-section_grid__col { display: flex; flex-direction: column; gap: var(--s-4); min-width: 0; }
  .b-section_grid__col > .b { width: 100%; }
  @media (min-width: 840px) {
    .p-grid-1 .b-section_grid__col { grid-column: span 12; }
    .p-grid-2 .b-section_grid__col { grid-column: span 6; }
    .p-grid-2-1 .b-section_grid__col:nth-child(1) { grid-column: span 8; }
    .p-grid-2-1 .b-section_grid__col:nth-child(n+2) { grid-column: span 4; }
    .p-grid-1-2 .b-section_grid__col:nth-child(1) { grid-column: span 4; }
    .p-grid-1-2 .b-section_grid__col:nth-child(n+2) { grid-column: span 8; }
    .p-grid-3 .b-section_grid__col { grid-column: span 4; }
    .p-grid-4 .b-section_grid__col { grid-column: span 6; }
  }
  @media (min-width: 1120px) {
    .p-grid-4 .b-section_grid__col { grid-column: span 3; }
  }

  /* ── spacer ────────────────────────────────────────────────────────────────────────────── */
  .b-spacer { height: var(--s-6); }
  .b-spacer[data-o-size="xs"] { height: var(--s-3); }
  .b-spacer[data-o-size="s"] { height: var(--s-5); }
  .b-spacer[data-o-size="m"] { height: var(--s-6); }
  .b-spacer[data-o-size="l"] { height: var(--s-7); }
  .b-spacer[data-o-size="xl"] { height: var(--s-8); }

  /* ── html (sanitized by core and again by the front) ───────────────────────────────────── */
  .b-html { padding-block: var(--s-3); }
  .b-html :is(img, video, iframe, table) { max-width: 100%; }
  .b-html table { border-collapse: collapse; }
  .b-html :is(td, th) { padding: var(--s-2) var(--s-3); border: 1px solid var(--dp-line, rgb(255 255 255 / 0.12)); }

  /* ── slider: scroll-snap track, works without JS; JS adds arrows, dots and autoplay ───── */
  .b-slider { padding-block: var(--s-4); }
  .b-slider__track { display: flex; gap: var(--s-3); overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; overscroll-behavior-x: contain; }
  .b-slider__track::-webkit-scrollbar { display: none; }
  .b-slider__slide { flex: 0 0 100%; scroll-snap-align: center; margin: 0; position: relative; border-radius: var(--dp-radius, 14px); overflow: hidden; }
  .b-slider__slide img, .b-slider__slide .dp-ph { width: 100%; height: auto; }
  .b-slider__cap { margin: 0; padding: var(--s-2) var(--s-3); font-size: 0.9rem; color: var(--dp-soft, #b9b6ae); }
  .b-slider__nav { display: flex; align-items: center; justify-content: center; gap: var(--s-2); margin-top: var(--s-3); }
  .b-slider__nav[hidden] { display: none; }
  .b-slider__btn { width: 40px; height: 40px; border: 0; border-radius: 50%; background: var(--dp-raise, #2c2b31); color: var(--dp-ink, #f2f0ea); cursor: pointer; font-size: 18px; line-height: 1; }
  .b-slider__btn:hover { background: var(--dp-paper, #232227); }
  .b-slider__dot { width: 8px; height: 8px; padding: 0; border: 0; border-radius: 50%; background: var(--dp-faint, #7d7a73); cursor: pointer; }
  .b-slider__dot[aria-current="true"] { background: var(--dp-yellow, #ffb500); }
  @media (min-width: 840px) {
    .b-slider[data-o-per="2"] .b-slider__slide { flex-basis: calc((100% - var(--s-3)) / 2); }
    .b-slider[data-o-per="3"] .b-slider__slide { flex-basis: calc((100% - 2 * var(--s-3)) / 3); }
  }
  @media (prefers-reduced-motion: no-preference) { .b-slider__track { scroll-behavior: smooth; } }

  /* ── form (Awards entry form) ──────────────────────────────────────────────────────────── */
  .b-form { padding-block: var(--s-5); }
  .b-form__title { margin: 0 0 var(--s-4); font-family: var(--dp-font-display, system-ui, sans-serif); font-size: 1.6rem; }
  .b-form__fields { display: grid; gap: var(--s-4); }
  .b-form__field { display: grid; gap: var(--s-1); }
  .b-form__label { font-size: 0.95rem; color: var(--dp-soft, #b9b6ae); }
  .b-form__req { color: var(--dp-yellow, #ffb500); }
  .b-form :is(input:not([type="checkbox"]), textarea, select) {
    width: 100%; min-height: 44px; padding: var(--s-2) var(--s-3); border: 1px solid var(--dp-line, rgb(255 255 255 / 0.12));
    border-radius: 10px; background: var(--dp-paper, #232227); color: var(--dp-ink, #f2f0ea);
  }
  .b-form textarea { min-height: 120px; resize: vertical; }
  .b-form__status { margin: var(--s-3) 0 0; min-height: 1.4em; color: var(--dp-soft, #b9b6ae); }
  .b-form__submit { margin-top: var(--s-4); }

  /* ── translation notice (below the page content) ───────────────────────────────────────── */
  .tr-notice { margin: var(--s-6) 0 var(--s-5); font-size: 0.8rem; line-height: 1.5; color: var(--dp-faint, #7d7a73); }
  .tr-notice p { margin: 0; }
  .tr-notice__btn { margin-top: var(--s-2); padding: 0; border: 0; background: none; color: var(--dp-soft, #b9b6ae); font-size: inherit; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
  .tr-notice__btn:hover { color: var(--dp-ink, #f2f0ea); }
  .tr-notice__btn:disabled { cursor: default; text-decoration: none; }

  /* ── editor preview (admin iframe only: <html data-preview>, editor-bridge.js) ─────────── */
  /* [data-block-uid]: blocks and the items of a prose block (paragraph, heading, list item) alike */
  html[data-preview] [data-block-uid] { cursor: default; }
  html[data-preview] [data-block-uid].is-hover { outline: 2px dashed rgb(255 181 0 / 0.55); outline-offset: -2px; }
  html[data-preview] [data-block-uid].is-selected { outline: 2px solid var(--dp-yellow, #ffb500); outline-offset: -2px; }
  html[data-preview] [data-block-uid].is-highlight { outline: 2px solid #4ea1ff; outline-offset: -2px; }
  html[data-preview] [data-block-uid].is-drop-before { box-shadow: 0 -3px 0 0 #4ea1ff; }
  html[data-preview] [data-block-uid].is-drop-after { box-shadow: 0 3px 0 0 #4ea1ff; }
  html[data-preview] [data-block-uid].is-drop-inside { outline: 2px dashed #4ea1ff; outline-offset: -4px; }
  html[data-preview] [data-text] { min-height: 1em; }
  /* an empty field says what goes there */
  html[data-preview] [data-text]:empty::before { content: "Text…"; opacity: 0.4; pointer-events: none; }
  html[data-preview] [data-text="title"]:empty::before { content: "Heading…"; }
  html[data-preview] [data-text="caption"]:empty::before, html[data-preview] [data-text="alt"]:empty::before { content: "Caption…"; }
  html[data-preview] [data-text][contenteditable="true"] { outline: 1px dotted rgb(255 255 255 / 0.5); outline-offset: 2px; cursor: text; }
  html[data-preview] [data-text][contenteditable="true"]:focus { outline: 2px solid var(--dp-yellow, #ffb500); }
  html[data-preview] .b[data-block-lock="locked"]::after { content: ""; position: absolute; inset: 0 0 auto auto; width: 14px; height: 14px; margin: 4px; background: var(--dp-faint, #7d7a73); border-radius: 3px; opacity: 0.6; pointer-events: none; }
  html[data-preview] .dp-header, html[data-preview] .dp-bg { pointer-events: none; }
}
