/* ============================================================
   HERO + SECTION FRAME + DECK INDEX
   ------------------------------------------------------------
   Three layouts:

     .hero                 - default centered hero (bracket page)
                             headline + tagline + stat-row + big-idea
     .hero.is-split        - asymmetric: tight left + full-bleed art right
                             used on deck home + landing page
     .hero.is-readout      - tournament + decklist: condensed, no big-idea

   Plus:
     section + section__num + section__title  - uniform section frame
     .deck-index           - landing page grid of deck tiles
     .deck-card            - one deck on the landing page
     .continue             - cross-page reading-flow grid at page end
   ============================================================ */

@layer components {

  /* ============================================================
     HERO - base
     ------------------------------------------------------------
     Padding: 56px → 96px on desktop, breathes generously.
     ============================================================ */
  .hero {
    position: relative;
    z-index: 1;
    padding: var(--space-2xl) 0 var(--space-xl);
  }


  /* ============================================================
     HERO ART - the Cloud splash, masked into the right edge
     ------------------------------------------------------------
     Original site used a soft radial mask. We replace with a hard
     diagonal gradient mask so the art reads as an editorial photo
     bleed, not a generic glow. Per-bracket filter tweaks (B4 hue
     rotates -10deg for a hotter red, B2 desaturates 10% so green
     pages don't fight the art).
     ============================================================ */
  .hero__art {
    position: absolute;
    top: var(--space-xl);
    right: calc(50% - 670px);
    width: 560px;
    height: 560px;
    max-width: 80vw;
    max-height: 80vw;
    background-size: cover;
    background-position: center 30%;
    opacity: 0.16;
    pointer-events: none;
    z-index: 0;
    filter: saturate(0.9) contrast(0.95);
    -webkit-mask-image: radial-gradient(ellipse at center,
                          black 38%, transparent 72%);
            mask-image: radial-gradient(ellipse at center,
                          black 38%, transparent 72%);
  }
  body[data-bracket="2"] .hero__art {
    filter: saturate(0.85) contrast(0.95) hue-rotate(8deg);
    opacity: 0.14;
  }
  body[data-bracket="3"] .hero__art {
    filter: saturate(1.0) contrast(1.0);
    opacity: 0.18;
  }
  body[data-bracket="4"] .hero__art {
    filter: saturate(1.15) contrast(1.05) hue-rotate(-10deg);
    opacity: 0.20;
  }


  /* READOUT HERO - tournament + decklist: condensed top padding,
     leaves the stat-row to do the heavy lifting. */
  .hero.is-readout {
    padding-top: var(--space-xl);
    padding-bottom: var(--space-lg);
  }
  .hero.is-readout .hero__title {
    margin-bottom: var(--space-sm);
  }


  /* SPLIT HERO ART - used in .hero.is-split layout. Hard-edge
     bleed off the right side, no soft mask. */
  .hero.is-split .hero__art {
    position: absolute;
    top: 0; right: 0;
    width: clamp(280px, 42vw, 640px);
    height: 100%;
    max-width: none;
    max-height: none;
    opacity: 0.28;
    -webkit-mask-image: linear-gradient(to left,
      black 30%, transparent 100%);
            mask-image: linear-gradient(to left,
      black 30%, transparent 100%);
  }


  @media (max-width: 820px) {
    .hero__art {
      width: 360px; height: 360px;
      right: -20px; top: 80px;
      opacity: 0.15;
    }
    .hero.is-split .hero__art {
      width: 280px; height: 280px;
      opacity: 0.18;
    }
  }
  @media (max-width: 520px) {
    .hero__art {
      width: 240px; height: 240px;
      right: -10px; top: 60px;
      opacity: 0.18;
    }
  }


  /* ============================================================
     KICKER - small mono caption above h1
     ============================================================ */
  .hero__kicker {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);

    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: var(--tracking-mega);
    text-transform: uppercase;
    color: var(--accent);
  }
  .hero__kicker::after {
    content: "";
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, var(--accent-deep), transparent);
  }


  /* ============================================================
     HEADLINE - h1
     ------------------------------------------------------------
     Three-element composition:
       .h1 / .hero__title
         <span class="hero__title-stroke">LIMIT</span>       (outlined glyph)
         <span>BREAK
           <span class="hero__title-accent">at 7+ power.</span>
         </span>

     The stroke variant is unfilled bone strokes. The accent
     variant is a small italic serif sub-clause that hangs off
     the headline like a movie-poster tagline.
     ============================================================ */
  .hero__title {
    margin: 0 0 var(--space-md);
    font-family: var(--font-display);
    font-weight: var(--fw-display-bold);
    font-size: var(--fs-hero);
    line-height: var(--lh-tight);
    letter-spacing: var(--tracking-tight);
    color: var(--bone-900);
    text-transform: uppercase;
    text-shadow:
      0 0 60px var(--accent-glow),
      0 2px 30px oklch(0% 0 0 / 0.5);
  }
  .hero__title-stroke {
    -webkit-text-stroke: 1.5px var(--bone-900);
    color: transparent;
    font-weight: var(--fw-display-light);
  }
  .hero__title-accent {
    display: inline-block;
    margin-left: 0.1em;
    transform: translateY(-0.15em);
    font-family: var(--font-body);
    font-style: italic;
    font-weight: var(--fw-body-strong);
    font-size: 0.55em;
    letter-spacing: 0;
    text-transform: none;
    color: var(--accent);
  }


  /* Mega title for landing page. */
  .hero__title--mega {
    font-size: var(--fs-mega);
  }


  /* ============================================================
     TAGLINE - italic serif lead paragraph
     ============================================================ */
  .hero__tagline {
    max-width: 64ch;
    margin: 0;
    font-family: var(--font-body);
    font-style: italic;
    font-size: var(--fs-lead);
    line-height: 1.5;
    color: var(--bone-700);
  }
  .hero__tagline a {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-color: var(--accent-deep);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
  }
  .hero__tagline a:hover {
    color: var(--bone-900);
    text-decoration-color: var(--accent);
  }


  /* ============================================================
     SECTION FRAME - uniform across all pages
     ------------------------------------------------------------
     Section break = 96px top padding + a 1px rule + a 60px
     accent stub anchored to the rule's top-left corner.
     ============================================================ */
  section {
    position: relative;
    padding: var(--space-3xl) 0 var(--space-sm);
    border-top: 1px solid var(--rule-medium);
    scroll-margin-top: 60px;
  }
  section::before {
    content: "";
    position: absolute;
    top: -1px; left: 0;
    width: 60px;
    height: 1px;
    background: var(--accent);
  }
  /* The hero section itself is the page top - no rule. */
  section.hero {
    padding-top: var(--space-2xl);
    border-top: 0;
  }
  section.hero::before { display: none; }


  /* SECTION NUMBER - the "00 // The thesis" label */
  .section__num {
    display: block;
    margin-bottom: var(--space-sm);
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: var(--tracking-mega);
    text-transform: uppercase;
    color: var(--accent);
  }


  /* SECTION TITLE - h2 */
  .section__title,
  h2 {
    max-width: 820px;
    margin: 0 0 var(--space-md);
    font-family: var(--font-display);
    font-weight: var(--fw-display-bold);
    font-size: var(--fs-h2);
    line-height: var(--lh-display);
    letter-spacing: var(--tracking-normal);
    text-transform: uppercase;
    color: var(--bone-900);
  }
  .section__title em,
  h2 em {
    font-family: var(--font-body);
    font-style: italic;
    font-weight: var(--fw-body-regular);
    color: var(--accent);
    text-transform: none;
    letter-spacing: var(--tracking-tight);
  }


  /* SECTION SUBHEAD - h3, label-style */
  h3 {
    margin: var(--space-lg) 0 var(--space-xs);
    padding-bottom: var(--space-2xs);
    border-bottom: 1px dashed var(--rule-medium);
    font-family: var(--font-headline);
    font-weight: var(--fw-body-strong);
    font-size: var(--fs-h3);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    color: var(--bone-900);
  }


  /* ============================================================
     DECK INDEX - landing page grid of deck tiles
     ------------------------------------------------------------
     Used on /index - once we have >1 deck, this is where they
     live. Asymmetric grid: featured deck spans 2 columns on
     wide screens.
     ============================================================ */
  .deck-index {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(380px, 100%), 1fr));
    gap: var(--space-md);
    margin: var(--space-xl) 0;
    align-items: stretch;
  }


  /* ============================================================
     DECK CARD - one deck on the landing page
     Horizontal layout: commander image left, content right.
     All cards same size (no featured / non-featured asymmetry).
     ============================================================ */
  .deck-card {
    position: relative;
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 0;
    min-height: 240px;
    background: var(--ink-050);
    border: 1px solid var(--rule-medium);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition:
      border-color var(--dur-fast) var(--ease-out-quart),
      transform var(--dur-fast) var(--ease-out-quart),
      box-shadow var(--dur-fast) var(--ease-out-quart);
  }
  .deck-card:hover,
  .deck-card:focus-visible {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--accent-lift-md);
    outline: none;
  }

  /* Commander image panel — left edge of every card */
  .deck-card__image-wrap {
    position: relative;
    background: var(--ink-100);
    overflow: hidden;
    border-right: 1px solid var(--rule-medium);
  }
  .deck-card__image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 30%;
    display: block;
    transition: transform var(--dur-medium) var(--ease-out-quart),
                filter var(--dur-medium) var(--ease-out-quart);
    filter: saturate(0.85);
  }
  .deck-card:hover .deck-card__image,
  .deck-card:focus-visible .deck-card__image {
    transform: scale(1.05);
    filter: saturate(1.0);
  }
  .deck-card__image--placeholder {
    background:
      repeating-linear-gradient(45deg, transparent 0 8px, var(--ink-200) 8px 9px),
      var(--ink-100);
  }
  /* Subtle gradient fade where the image meets the content panel */
  .deck-card__image-wrap::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, transparent 60%, var(--ink-050) 100%);
    pointer-events: none;
  }

  /* Content body */
  .deck-card__body {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: var(--space-md) var(--space-lg);
    min-width: 0;
  }
  .deck-card__body .deck-card__tagline {
    margin-top: auto;
  }

  @media (max-width: 520px) {
    .deck-card {
      grid-template-columns: 1fr;
      grid-template-rows: 140px auto;
      min-height: 0;
    }
    .deck-card__image-wrap {
      border-right: none;
      border-bottom: 1px solid var(--rule-medium);
    }
    .deck-card__image-wrap::after {
      background: linear-gradient(to bottom, transparent 60%, var(--ink-050) 100%);
    }
  }

  .deck-card__kicker {
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: var(--tracking-mega);
    text-transform: uppercase;
    color: var(--accent);
  }
  .deck-card__title {
    margin: 0;
    font-family: var(--font-display);
    font-weight: var(--fw-display-bold);
    font-size: clamp(2rem, 3.5vw, 3rem);
    line-height: var(--lh-tight);
    letter-spacing: var(--tracking-tight);
    text-transform: uppercase;
    color: var(--bone-900);
  }
  .deck-card__title em {
    font-family: var(--font-body);
    font-style: italic;
    font-weight: var(--fw-body-regular);
    font-size: 0.55em;
    color: var(--accent);
    text-transform: none;
    margin-left: 0.1em;
    display: inline-block;
    transform: translateY(-0.15em);
  }
  .deck-card__tagline {
    max-width: 36ch;
    margin: 0;
    font-family: var(--font-body);
    font-style: italic;
    font-size: var(--fs-body-sm);
    line-height: 1.5;
    color: var(--bone-700);
  }
  .deck-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-xs);
    font-family: var(--font-mono);
    font-size: var(--fs-label-sm);
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
    color: var(--bone-700);
  }
  .deck-card__meta strong {
    display: block;
    margin-top: 2px;
    color: var(--bone-900);
    font-family: var(--font-display);
    font-weight: var(--fw-display-bold);
    font-size: 1.25rem;
    letter-spacing: var(--tracking-tight);
    font-variant-numeric: tabular-nums;
  }
  .deck-card__meta em {
    color: var(--accent);
    font-style: italic;
    font-family: var(--font-body);
    font-size: 0.85em;
    margin-left: 4px;
  }
  .deck-card__arrow {
    position: absolute;
    top: var(--space-md); right: var(--space-md);
    z-index: 2;
    font-family: var(--font-mono);
    font-size: 1.5rem;
    line-height: 1;
    color: var(--accent);
    transition: transform var(--dur-fast) var(--ease-out-quart);
  }
  .deck-card:hover .deck-card__arrow,
  .deck-card:focus-visible .deck-card__arrow {
    transform: translateX(5px);
  }


  /* COMING SOON deck-card variant - placeholder card for future decks. */
  .deck-card.is-locked {
    border-style: dashed;
    pointer-events: none;
  }
  .deck-card.is-locked .deck-card__title,
  .deck-card.is-locked .deck-card__tagline {
    color: var(--bone-500);
  }
  .deck-card.is-locked .deck-card__arrow { opacity: 0.4; }


  /* ============================================================
     CONTINUE - cross-page next-step grid at the bottom of a page
     ============================================================ */
  .continue {
    position: relative;
    margin-top: var(--space-3xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--rule-medium);
  }
  .continue::before {
    content: "";
    position: absolute;
    top: -1px; left: 0;
    width: 60px; height: 1px;
    background: var(--accent);
  }
  .continue .section__num { margin-bottom: var(--space-md); }
  .continue__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-sm);
  }
  .continue-card {
    display: block;
    position: relative;
    padding: var(--space-md) var(--space-lg) var(--space-md);
    background: var(--ink-100);
    border: 1px solid var(--rule-medium);
    text-decoration: none;
    color: var(--bone-900);
    transition:
      border-color var(--dur-fast) var(--ease-out-quart),
      transform var(--dur-fast) var(--ease-out-quart),
      box-shadow var(--dur-fast) var(--ease-out-quart);
  }
  .continue-card:hover,
  .continue-card:focus-visible {
    border-color: var(--accent-deep);
    transform: translateY(-2px);
    box-shadow: var(--accent-lift-sm);
    outline: none;
  }
  .continue-card::after {
    content: "\203A";
    position: absolute;
    top: var(--space-sm); right: var(--space-md);
    color: var(--accent);
    font-size: 1.375rem;
    line-height: 1;
    font-family: var(--font-mono);
    transition: transform var(--dur-fast) var(--ease-out-quart);
  }
  .continue-card:hover::after,
  .continue-card:focus-visible::after { transform: translateX(5px); }

  .continue-card__kicker {
    margin-bottom: var(--space-2xs);
    font-family: var(--font-mono);
    font-size: var(--fs-label-sm);
    letter-spacing: var(--tracking-mega);
    text-transform: uppercase;
    color: var(--accent);
  }
  .continue-card__title {
    margin-bottom: var(--space-2xs);
    font-family: var(--font-headline);
    font-weight: var(--fw-body-strong);
    font-size: 1.375rem;
    letter-spacing: var(--tracking-normal);
    text-transform: uppercase;
    color: var(--bone-900);
  }
  .continue-card__body {
    margin: 0;
    max-width: 40ch;
    font-family: var(--font-body);
    font-style: italic;
    font-size: var(--fs-body-sm);
    line-height: 1.5;
    color: var(--bone-700);
  }


  /* ============================================================
     FOOTER + SWORD MARK
     ============================================================ */
  .site-footer {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-top: var(--space-3xl);
    padding-top: var(--space-md);
    border-top: 1px solid var(--rule-medium);
    position: relative;

    font-family: var(--font-mono);
    font-size: var(--fs-label-sm);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--bone-700);
  }

  .site-footer__home {
    color: var(--bone-800);
    text-decoration-color: var(--rule-medium);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
  }
  .site-footer__home:hover,
  .site-footer__home:focus-visible {
    color: var(--accent);
    text-decoration-color: var(--accent);
  }

  .sword-mark {
    position: absolute;
    right: 0;
    top: -96px;
    width: 36px;
    height: 152px;
    color: var(--accent);
    opacity: 0.24;
    pointer-events: none;
    filter: drop-shadow(0 0 10px var(--accent-soft));
  }
  .sword-mark svg { width: 100%; height: 100%; display: block; }
}