/* =============================================================
   Hummingbird tutorial — site styles
   Aesthetic: Red Hat brand fonts, light surface, red accent,
   card grid landing, numbered detail pages.
   ============================================================= */

/* ---- 1. Tokens --------------------------------------------- */

:root {
  /* Color */
  --bg:               #ffffff;
  --bg-soft:          #f4f4f4;
  --bg-card:          #ffffff;
  --bg-code:          #0c0d0e;
  --bg-callout:       #fff5f5;
  --border:           #e0e0e0;
  --border-strong:    #c6c6c6;

  --ink:              #1a1a1a;
  --ink-muted:        #6a6e73;
  --ink-faint:        #8a8d91;
  --ink-on-dark:      #f4f4f4;

  --accent:           #ee0000;
  --accent-hover:     #c00000;
  --accent-soft:      #ffeaea;

  --hummingbird:      #151515;       /* deep almost-black footer */

  /* Typography */
  --font-display: "Red Hat Display", -apple-system, BlinkMacSystemFont,
                  "Segoe UI", sans-serif;
  --font-body:    "Red Hat Text", -apple-system, BlinkMacSystemFont,
                  "Segoe UI", sans-serif;
  --font-mono:    "Red Hat Mono", ui-monospace, "SF Mono",
                  "JetBrains Mono", "Fira Code", monospace;

  /* Spacing scale */
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  /* Radii / shadows */
  --radius-sm: 4px;
  --radius:    8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04);
  --shadow:    0 4px 12px rgba(0,0,0,.06);
  --shadow-lg: 0 8px 24px rgba(0,0,0,.08);

  /* Layout */
  --max-w:        72rem;     /* 1152px */
  --max-w-prose:  44rem;     /* 704px — comfortable reading width */

  --transition: 150ms cubic-bezier(.4,0,.2,1);
}

/* ---- 2. Reset + base --------------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 var(--space-4);
}
h1 { font-size: clamp(2rem, 4vw, 2.75rem); letter-spacing: -0.02em; }
h2 { font-size: 1.75rem; margin-top: var(--space-7); }
h3 { font-size: 1.25rem; margin-top: var(--space-5); }
h4 { font-size: 1.05rem; }

p, ul, ol, blockquote, pre, table { margin: 0 0 var(--space-4); }
ul, ol { padding-left: 1.5rem; }
li { margin-bottom: .25rem; }
li > ul, li > ol { margin-top: .25rem; margin-bottom: .25rem; }

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: var(--space-7) 0;
}

blockquote {
  border-left: 3px solid var(--accent);
  background: var(--bg-callout);
  padding: var(--space-4) var(--space-5);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ink);
}
blockquote > :last-child { margin-bottom: 0; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .95rem;
}
th, td {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
}
th {
  font-family: var(--font-display);
  font-weight: 600;
  background: var(--bg-soft);
  border-bottom-color: var(--border-strong);
}

/* ---- 3. Code ----------------------------------------------- */

code, kbd, samp, pre { font-family: var(--font-mono); }

:not(pre) > code {
  font-size: .9em;
  padding: .15em .4em;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--ink);
  white-space: nowrap;
}

pre {
  background: var(--bg-code);
  color: var(--ink-on-dark);
  padding: var(--space-5);
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: .9rem;
  line-height: 1.55;
  border: 1px solid #1f2123;
}
pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: inherit;
  white-space: pre;
  font-size: inherit;
}

/* Rouge syntax highlighting on dark — minimal palette */
.highlight .c, .highlight .c1, .highlight .cm, .highlight .cs { color: #8a8d91; font-style: italic; }
.highlight .k, .highlight .kn, .highlight .kd, .highlight .kr { color: #ff7b72; }
.highlight .s, .highlight .s1, .highlight .s2, .highlight .sb, .highlight .se { color: #a5d6ff; }
.highlight .nb, .highlight .nf, .highlight .nx { color: #ffa657; }
.highlight .nv, .highlight .vi { color: #79c0ff; }
.highlight .mi, .highlight .mf { color: #79c0ff; }
.highlight .o { color: #ff7b72; }
.highlight .gp { color: #8a8d91; }   /* shell prompt */

/* ---- 4. Layout primitives ---------------------------------- */

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-5);
}
.container-prose {
  max-width: var(--max-w-prose);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.section { padding: var(--space-8) 0; }
.section-tight { padding: var(--space-7) 0; }

/* ---- 5. Site header (top nav) ------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  height: 4rem;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  letter-spacing: -.01em;
}
.brand:hover { color: var(--ink); text-decoration: none; }
.brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem; height: 1.75rem;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  line-height: 1;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  font-size: .95rem;
}
.site-nav a {
  color: var(--ink-muted);
  font-weight: 500;
  padding: .25rem 0;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover {
  color: var(--ink);
  text-decoration: none;
}
.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

@media (max-width: 720px) {
  .site-header__inner { height: 3.5rem; gap: var(--space-3); }
  .site-nav { gap: var(--space-3); font-size: .875rem; }
  .site-nav a:nth-child(n+5) { display: none; }
}

/* ---- 6. Hero ----------------------------------------------- */

.hero {
  padding: var(--space-9) 0 var(--space-8);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 0%, rgba(238,0,0,.06), transparent 60%),
    radial-gradient(ellipse 60% 50% at 0% 100%, rgba(238,0,0,.04), transparent 60%);
  pointer-events: none;
  z-index: -1;
}
.hero__eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-4);
}
.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1.05;
  margin-bottom: var(--space-5);
}
.hero__lead {
  font-size: 1.2rem;
  color: var(--ink-muted);
  max-width: 38rem;
  margin-bottom: var(--space-6);
}
.hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ---- 7. Chips / tags --------------------------------------- */

.chip {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 500;
  padding: .3rem .65rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--ink);
}
.chip--accent {
  background: var(--accent-soft);
  border-color: #ffcfcf;
  color: var(--accent-hover);
}

/* ---- 8. Buttons -------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .95rem;
  padding: .7rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1;
}
.btn--primary {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.btn--primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  text-decoration: none;
}
.btn--secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--border-strong);
}
.btn--secondary:hover {
  border-color: var(--ink);
  color: var(--ink);
  text-decoration: none;
}

/* ---- 9. Stats grid ----------------------------------------- */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat {
  background: var(--bg);
  padding: var(--space-5);
  text-align: left;
}
.stat__value {
  display: block;
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--ink);
  line-height: 1;
}
.stat__label {
  display: block;
  margin-top: .35rem;
  font-size: .85rem;
  color: var(--ink-muted);
}

/* ---- 10. Card grids --------------------------------------- */

.section-heading {
  margin-bottom: var(--space-2);
}
.section-sub {
  color: var(--ink-muted);
  margin-bottom: var(--space-6);
  max-width: 40rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
  gap: var(--space-5);
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: transform var(--transition), box-shadow var(--transition),
              border-color var(--transition);
  color: inherit;
  text-decoration: none;
  position: relative;
}
.card:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
}
.card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.card__eyebrow {
  font-family: var(--font-mono);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ink-muted);
  margin-bottom: var(--space-3);
}
.card__eyebrow strong {
  color: var(--accent);
  font-weight: 600;
}
.card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -.01em;
  margin: 0 0 var(--space-2);
  line-height: 1.3;
}
.card__desc {
  flex-grow: 1;
  color: var(--ink-muted);
  font-size: .95rem;
  margin: 0 0 var(--space-4);
}
.card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--ink-faint);
  border-top: 1px solid var(--border);
  padding-top: var(--space-3);
}

/* Doc card: emoji-style icon variant for reference docs */
.doc-card {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: all var(--transition);
  color: inherit;
  text-decoration: none;
}
.doc-card:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
}
.doc-card__icon {
  font-size: 1.5rem;
  width: 2.5rem; height: 2.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-soft);
  border-radius: var(--radius);
  flex-shrink: 0;
}
.doc-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  margin: 0 0 .35rem;
  color: var(--ink);
}
.doc-card__desc {
  margin: 0;
  font-size: .9rem;
  color: var(--ink-muted);
}

/* ---- 11. Tutorial detail page ----------------------------- */

.tutorial {
  padding: var(--space-7) 0 var(--space-9);
}
.tutorial__inner {
  max-width: var(--max-w-prose);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--ink-muted);
  margin-bottom: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  align-items: center;
}
.breadcrumb a { color: var(--ink-muted); }
.breadcrumb a:hover { color: var(--ink); text-decoration: none; }
.breadcrumb__sep { color: var(--ink-faint); }
.breadcrumb__current { color: var(--ink); }

.tutorial__header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-5);
  align-items: start;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--border);
}
.tutorial__num {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.tutorial__title-group h1 {
  margin: .25rem 0 var(--space-3);
}
.tutorial__chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tutorial__body {
  font-size: 1.025rem;
}
.tutorial__body h2 {
  padding-top: var(--space-4);
}
.tutorial__body h2::before {
  content: "";
  display: block;
  width: 2.5rem;
  height: 2px;
  background: var(--accent);
  margin-bottom: var(--space-3);
}

.tutorial__body figure { margin: var(--space-6) 0; }
.tutorial__body figcaption {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--ink-muted);
  text-align: center;
  margin-top: var(--space-2);
}

/* Excalidraw embed wrapper */
.excalidraw-embed {
  margin: var(--space-6) 0;
  padding: var(--space-5);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.excalidraw-embed object,
.excalidraw-embed img,
.excalidraw-embed svg {
  width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}
.excalidraw-embed__caption {
  display: block;
  text-align: center;
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--ink-muted);
  margin-top: var(--space-3);
}
.excalidraw-embed__links {
  text-align: center;
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: .75rem;
}
.excalidraw-embed__links a {
  color: var(--ink-muted);
  margin: 0 .5rem;
}

/* Prev / next pager */
.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-top: var(--space-7);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
}
.pager__link {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--ink);
  transition: all var(--transition);
}
.pager__link:hover {
  border-color: var(--ink);
  text-decoration: none;
}
.pager__link--next { text-align: right; }
.pager__dir {
  font-family: var(--font-mono);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ink-muted);
}
.pager__title {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
}

@media (max-width: 600px) {
  .tutorial__header { grid-template-columns: 1fr; }
  .tutorial__num { font-size: 3rem; }
  .pager { grid-template-columns: 1fr; }
  .pager__link--next { text-align: left; }
}

/* ---- 12. Footer -------------------------------------------- */

.site-footer {
  background: var(--hummingbird);
  color: var(--ink-on-dark);
  padding: var(--space-8) 0 var(--space-6);
  margin-top: var(--space-9);
}
.site-footer a { color: var(--ink-on-dark); }
.site-footer a:hover { color: var(--accent); text-decoration: none; }

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-7);
}
.footer-col h4 {
  font-family: var(--font-display);
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink-faint);
  margin: 0 0 var(--space-3);
}
.footer-col p, .footer-col ul { font-size: .9rem; color: #c9c9c9; margin: 0; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: .35rem; }

.footer-meta {
  border-top: 1px solid #2a2a2a;
  padding-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--ink-faint);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
}

/* ---- 13. Generic doc page (e.g. reconciliation plan) ------ */

.doc-page {
  padding: var(--space-7) 0 var(--space-9);
}
.doc-page__inner {
  max-width: var(--max-w-prose);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

/* ---- 14. Print --------------------------------------------- */

@media print {
  .site-header, .site-footer, .pager { display: none; }
  body { color: #000; background: #fff; }
  pre { background: #f4f4f4; color: #000; border: 1px solid #ccc; }
  a { color: #000; text-decoration: underline; }
}
/* =============================================================
   ADDITIONS — examples page, diagrams gallery, modal viewer
   Append this block to the end of assets/css/site.css.
   ============================================================= */

/* ---- Hero variant: compact ---------------------------------- */

.hero--compact {
  padding: var(--space-8) 0 var(--space-6);
}
.hero--compact h1 {
  font-size: clamp(2rem, 4vw, 3rem);
}

/* ---- Diagrams gallery -------------------------------------- */

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(22rem, 1fr));
  gap: var(--space-6);
}

.gallery-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.gallery-card:hover {
  border-color: var(--ink);
  box-shadow: var(--shadow);
}

.gallery-card__header {
  padding: var(--space-4) var(--space-5) var(--space-3);
  border-bottom: 1px solid var(--border);
}
.gallery-card__section {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}
.gallery-card__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -.01em;
  margin: .25rem 0 0;
  color: var(--ink);
}

.gallery-card__viewer {
  position: relative;
  display: block;
  width: 100%;
  border: 0;
  background: var(--bg-soft);
  padding: var(--space-5);
  cursor: zoom-in;
  transition: background var(--transition);
}
.gallery-card__viewer:hover {
  background: #ededed;
}
.gallery-card__viewer:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
.gallery-card__viewer object {
  width: 100%;
  height: auto;
  display: block;
  pointer-events: none;             /* let the button receive the click */
  max-height: 16rem;
  object-fit: contain;
}
.gallery-card__zoom-hint {
  position: absolute;
  bottom: var(--space-3);
  right: var(--space-3);
  font-family: var(--font-mono);
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ink-faint);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}
.gallery-card__viewer:hover .gallery-card__zoom-hint,
.gallery-card__viewer:focus-visible .gallery-card__zoom-hint {
  opacity: 1;
}

.gallery-card__caption {
  padding: var(--space-4) var(--space-5);
  font-size: .9rem;
  color: var(--ink-muted);
  margin: 0;
  flex-grow: 1;
}

.gallery-card__actions {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: .8rem;
  background: var(--bg);
}
.gallery-card__actions a {
  color: var(--ink-muted);
}
.gallery-card__actions a:hover {
  color: var(--accent);
  text-decoration: none;
}

/* ---- Modal / fullscreen viewer ----------------------------- */

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(12, 13, 14, .92);
  padding: var(--space-5);
  overflow-y: auto;
}
.modal[hidden] { display: none; }

.modal__inner {
  width: 100%;
  max-width: 64rem;
  background: var(--bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 4rem);
}

.modal__header {
  padding: var(--space-5) var(--space-6) var(--space-4);
  border-bottom: 1px solid var(--border);
}
.modal__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: -.01em;
  margin: 0 0 var(--space-2);
  color: var(--ink);
}
.modal__caption {
  margin: 0;
  font-size: .95rem;
  color: var(--ink-muted);
}

.modal__viewer {
  flex-grow: 1;
  background: var(--bg-soft);
  padding: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  min-height: 20rem;
}
.modal__svg {
  width: 100%;
  height: auto;
  max-height: calc(100vh - 18rem);
  display: block;
}

.modal__actions {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border);
  background: var(--bg);
  flex-wrap: wrap;
}

.modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 1;
  width: 2.5rem;
  height: 2.5rem;
  background: rgba(255, 255, 255, .15);
  color: #fff;
  border: 0;
  border-radius: 50%;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}
.modal__close:hover {
  background: rgba(255, 255, 255, .28);
  transform: scale(1.05);
}
.modal__close:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (max-width: 600px) {
  .modal { padding: 0; }
  .modal__inner { max-height: 100vh; border-radius: 0; }
  .modal__header { padding: var(--space-4); }
  .modal__title { font-size: 1.2rem; }
  .modal__viewer { padding: var(--space-4); }
  .modal__actions { padding: var(--space-3) var(--space-4); }
}