/* components.css — buttons, cards, chips, forms, prose, alerts, pagination, etc.
   Only tokens from tokens.css; no hard-coded colours (except neutral overlays). */

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: transparent; --btn-fg: var(--c-text); --btn-bd: var(--c-border-strong);
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  min-height: 2.9rem; padding: .7rem 1.35rem; border-radius: var(--radius-md);
  border: 1px solid var(--btn-bd); background: var(--btn-bg); color: var(--btn-fg);
  font: 600 .95rem/1.2 var(--font-sans); letter-spacing: .005em; text-decoration: none; white-space: nowrap;
  cursor: pointer; position: relative; max-width: 100%;
  transition: background var(--t-base) var(--ease), border-color var(--t-base) var(--ease), color var(--t-base) var(--ease), transform var(--t-fast) var(--ease), box-shadow var(--t-base) var(--ease);
}
.btn:hover { color: var(--btn-fg); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn i, .btn svg { font-size: .9em; transition: transform var(--t-base) var(--ease); }
.btn:hover .fa-arrow-right, .btn:hover .fa-arrow-up-right-from-square { transform: translateX(3px); }
.btn[disabled], .btn.is-loading { opacity: .6; pointer-events: none; }
.btn--primary { --btn-bg: var(--c-primary); --btn-fg: var(--c-on-primary); --btn-bd: var(--c-primary); box-shadow: var(--shadow-sm); }
.btn--primary:hover { --btn-bg: var(--c-primary-600); --btn-bd: var(--c-primary-600); box-shadow: var(--shadow-md); }
.btn--secondary { --btn-bg: var(--c-surface); --btn-fg: var(--c-text); --btn-bd: var(--c-border-strong); }
.btn--secondary:hover { --btn-bd: var(--c-primary-600); --btn-fg: var(--c-primary-600); }
.btn--ghost { --btn-fg: var(--c-primary-600); --btn-bd: transparent; padding-inline: .75rem; }
.btn--ghost:hover { --btn-bg: var(--c-primary-soft); }
.btn--sm { min-height: 2.3rem; padding: .45rem .95rem; font-size: .85rem; border-radius: var(--radius-sm); }
.btn--lg { min-height: 3.3rem; padding: .85rem 1.75rem; font-size: 1rem; }
.btn--block { width: 100%; }
.btn--gold { --btn-bg: var(--c-accent); --btn-fg: #16110a; --btn-bd: var(--c-accent); }
.section--ink .btn--secondary { --btn-bg: transparent; --btn-fg: #fff; --btn-bd: rgba(255,255,255,.35); }
.section--ink .btn--secondary:hover { --btn-bd: #fff; --btn-fg: #fff; }
.section--ink .btn--primary { --btn-bg: #fff; --btn-fg: var(--c-ink); --btn-bd: #fff; }
.section--ink .btn--primary:hover { --btn-bg: var(--c-accent); --btn-bd: var(--c-accent); --btn-fg: #16110a; }

.link-arrow { display: inline-flex; align-items: center; gap: .4rem; font-weight: 600; color: var(--c-primary-600); text-decoration: none; }
.link-arrow i { font-size: .8em; transition: transform var(--t-base) var(--ease); }
.link-arrow:hover i { transform: translateX(4px); }
.link-arrow:hover { color: var(--c-primary); }

/* ---------- Cards ---------- */
.card {
  position: relative; display: flex; flex-direction: column; min-width: 0;
  background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg);
  overflow: hidden; transition: border-color var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease), transform var(--t-base) var(--ease);
}
.card:hover { border-color: var(--c-border-strong); box-shadow: var(--shadow-md); }
.card__media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--c-surface-3); border-bottom: 1px solid var(--c-border); }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 700ms var(--ease); }
.card:hover .card__media img { transform: scale(1.035); }
.card__media--placeholder { display: grid; place-items: center; color: var(--c-text-faint); font-size: 1.6rem; }
.card__body { display: flex; flex-direction: column; gap: .5rem; padding: var(--space-5); flex: 1; min-width: 0; }
.card__eyebrow { margin: 0; font: 600 var(--fs-xs)/1.3 var(--font-sans); color: var(--c-accent-text); letter-spacing: .02em; }
.card__title { margin: 0; font: 500 var(--fs-xl)/1.25 var(--font-display); color: var(--c-ink); letter-spacing: -.01em; overflow-wrap: anywhere; }
[data-theme="dark"] .card__title { color: #f1f4fa; }
.card__title a { color: inherit; text-decoration: none; }
.card__excerpt { margin: 0; color: var(--c-text-muted); font-size: .95rem; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.card__meta { display: flex; flex-wrap: wrap; gap: .25rem .9rem; margin: 0; padding: 0; list-style: none; font-size: var(--fs-xs); color: var(--c-text-faint); }
.card__footer { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; padding: var(--space-3) var(--space-5) var(--space-5); margin-top: auto; }
.card__body + .card__footer { padding-top: 0; }
.card--link { cursor: pointer; }
.card--link .card__title a::after { content: ""; position: absolute; inset: 0; z-index: 1; }
.card--link:hover .card__title a { color: var(--c-primary-600); }
.card--link a:not(.card__title a):not(.stretched) { position: relative; z-index: 2; }
.card:focus-within { border-color: var(--c-primary-600); }
.card--flat { background: transparent; border-color: var(--c-border); }
.card--flat:hover { box-shadow: none; }
.card--pad .card__body { padding: var(--space-6); }

/* ---------- Chips / badges / tags ---------- */
.chip, .tag {
  display: inline-flex; align-items: center; gap: .4rem; padding: .28rem .75rem; border-radius: var(--radius-pill);
  border: 1px solid var(--c-border); background: var(--c-surface); color: var(--c-text-muted);
  font: 500 var(--fs-sm)/1.3 var(--font-sans); text-decoration: none; white-space: nowrap;
  transition: border-color var(--t-fast), color var(--t-fast), background var(--t-fast);
}
a.chip:hover, button.chip:hover { border-color: var(--c-primary-600); color: var(--c-primary-600); }
.chip.is-active, .chip[aria-pressed="true"], .chip[aria-current] { background: var(--c-primary); border-color: var(--c-primary); color: var(--c-on-primary); }
.chip i { font-size: .85em; }
.badge {
  display: inline-flex; align-items: center; gap: .35rem; padding: .18rem .6rem; border-radius: var(--radius-xs);
  background: var(--c-primary-soft); color: var(--c-primary-600); font: 600 var(--fs-xs)/1.4 var(--font-sans); white-space: nowrap;
}
.badge--gold { background: var(--c-accent-soft); color: var(--c-accent-text); }
.badge--success { background: var(--c-success-soft); color: var(--c-success); }
.badge--danger { background: var(--c-danger-soft); color: var(--c-danger); }
.badge--muted { background: var(--c-surface-3); color: var(--c-text-muted); }
.tag-list { display: flex; flex-wrap: wrap; gap: .4rem; margin: 0; padding: 0; list-style: none; }
.tag-list .chip, .tag-list .tag { padding: .2rem .65rem; font-size: var(--fs-xs); }

/* ---------- Stat ---------- */
.stat { display: flex; flex-direction: column; gap: .35rem; padding-top: var(--space-4); border-top: 1px solid var(--c-border-strong); min-width: 0; }
.stat__value { font: 400 clamp(2.4rem, 1.8rem + 2.6vw, 3.8rem)/1 var(--font-display); color: var(--c-ink); letter-spacing: -.02em; font-variant-numeric: lining-nums tabular-nums; }
[data-theme="dark"] .stat__value { color: #f1f4fa; }
.stat__value sup, .stat__value .stat__suffix { font-size: .5em; color: var(--c-accent-text); margin-left: .1em; vertical-align: .55em; }
.stat__label { font-weight: 600; font-size: .95rem; color: var(--c-text); }
.stat__text { font-size: var(--fs-sm); color: var(--c-text-muted); }

/* ---------- Icon box ---------- */
.icon-box { display: inline-grid; place-items: center; width: 2.9rem; height: 2.9rem; flex: none; border-radius: var(--radius-md); background: var(--c-primary-soft); color: var(--c-primary-600); font-size: 1.1rem; border: 1px solid color-mix(in srgb, var(--c-primary-600) 14%, transparent); }
.icon-box--lg { width: 3.6rem; height: 3.6rem; font-size: 1.4rem; }
.icon-box--gold { background: var(--c-accent-soft); color: var(--c-accent-text); border-color: color-mix(in srgb, var(--c-accent) 25%, transparent); }

/* ---------- Forms ---------- */
.filters { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: end; margin-bottom: var(--space-6); }
.filters .field { flex: 1 1 12rem; min-width: 0; }
.filters .field--grow { flex: 2 1 18rem; }
.field { display: flex; flex-direction: column; gap: .4rem; min-width: 0; }
.field > label, .field__label { font-size: .875rem; font-weight: 600; color: var(--c-text); }
.field__hint { font-size: var(--fs-xs); color: var(--c-text-faint); }
.field__error { font-size: var(--fs-sm); color: var(--c-danger); display: none; }
.field.has-error .field__error { display: block; }
.field.has-error .input, .field.has-error .select, .field.has-error textarea { border-color: var(--c-danger); }
.field .req { color: var(--c-danger); margin-left: .15em; }
.input, .select, textarea.input {
  width: 100%; min-height: 2.9rem; padding: .65rem .9rem; border: 1px solid var(--c-border-strong); border-radius: var(--radius-md);
  background: var(--c-surface); color: var(--c-text); font: 400 1rem/1.4 var(--font-sans);
  transition: border-color var(--t-fast), box-shadow var(--t-fast); appearance: none; -webkit-appearance: none;
}
textarea.input { min-height: 8rem; resize: vertical; line-height: 1.6; }
.input::placeholder { color: var(--c-text-faint); }
.input:hover, .select:hover { border-color: var(--c-text-faint); }
.input:focus, .select:focus, textarea.input:focus { outline: none; border-color: var(--c-primary-600); box-shadow: var(--ring); }
.select { background-image: linear-gradient(45deg, transparent 50%, var(--c-text-muted) 50%), linear-gradient(135deg, var(--c-text-muted) 50%, transparent 50%); background-position: calc(100% - 1.15rem) 50%, calc(100% - .8rem) 50%; background-size: .35rem .35rem; background-repeat: no-repeat; padding-right: 2.4rem; }
.check { display: flex; align-items: flex-start; gap: .6rem; font-size: .9rem; color: var(--c-text-muted); }
.check input { margin-top: .25rem; accent-color: var(--c-primary-600); }
.form-grid { display: grid; gap: var(--space-4); grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) { .form-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .form-grid .field--full { grid-column: 1 / -1; } }

/* ---------- Empty state ---------- */
.empty-state { text-align: center; padding: clamp(2.5rem, 2rem + 4vw, 5rem) var(--space-5); border: 1px dashed var(--c-border-strong); border-radius: var(--radius-lg); background: var(--c-surface); max-width: 40rem; margin-inline: auto; }
.empty-state__icon { display: inline-grid; place-items: center; width: 3.6rem; height: 3.6rem; border-radius: 50%; background: var(--c-surface-3); color: var(--c-text-muted); font-size: 1.3rem; margin-bottom: var(--space-4); }
.empty-state__title { font: 500 var(--fs-xl)/1.3 var(--font-display); margin: 0 0 .4rem; color: var(--c-ink); }
[data-theme="dark"] .empty-state__title { color: #f1f4fa; }
.empty-state__text { margin: 0 auto var(--space-4); max-width: 32rem; color: var(--c-text-muted); }

/* ---------- Pagination (render_pagination output) ---------- */
.pagination { margin-top: var(--space-8); }
.pagination ul { display: flex; flex-wrap: wrap; justify-content: center; gap: .4rem; list-style: none; }
.page-link { display: inline-grid; place-items: center; min-width: 2.6rem; height: 2.6rem; padding: 0 .75rem; border: 1px solid var(--c-border); border-radius: var(--radius-md); background: var(--c-surface); color: var(--c-text); text-decoration: none; font-weight: 600; font-size: .92rem; transition: border-color var(--t-fast), color var(--t-fast), background var(--t-fast); }
a.page-link:hover { border-color: var(--c-primary-600); color: var(--c-primary-600); }
.page-link.is-active { background: var(--c-primary); border-color: var(--c-primary); color: var(--c-on-primary); }
.page-link.is-disabled { opacity: .4; }
.page-gap { display: inline-grid; place-items: center; height: 2.6rem; padding: 0 .3rem; color: var(--c-text-faint); }

/* ---------- Alerts ---------- */
.alert { display: flex; gap: .75rem; align-items: flex-start; padding: .9rem 1.1rem; border-radius: var(--radius-md); border: 1px solid var(--c-border); background: var(--c-surface-2); color: var(--c-text); font-size: .95rem; }
.alert > i { margin-top: .2rem; }
.alert--success { background: var(--c-success-soft); border-color: color-mix(in srgb, var(--c-success) 35%, transparent); color: var(--c-success); }
.alert--error { background: var(--c-danger-soft); border-color: color-mix(in srgb, var(--c-danger) 35%, transparent); color: var(--c-danger); }
.alert--info { background: var(--c-info-soft); border-color: color-mix(in srgb, var(--c-info) 30%, transparent); color: var(--c-info); }
.alert p { margin: 0; }

/* ---------- Skeleton ---------- */
.skeleton { display: block; min-height: 1em; border-radius: var(--radius-sm); background: linear-gradient(90deg, var(--c-surface-3) 25%, var(--c-surface-2) 37%, var(--c-surface-3) 63%); background-size: 400% 100%; animation: skeleton 1.4s ease infinite; }
@keyframes skeleton { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }

/* ---------- Scroll reveal (progressive enhancement: only hidden once JS marks .js-reveal) ---------- */
.js-reveal .reveal { opacity: 0; transform: translateY(18px); transition: opacity 700ms var(--ease), transform 700ms var(--ease); transition-delay: var(--reveal-delay, 0ms); }
.js-reveal .reveal[data-reveal="fade"] { transform: none; }
.js-reveal .reveal[data-reveal="scale"] { transform: scale(.97); }
.js-reveal .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js-reveal .reveal { opacity: 1 !important; transform: none !important; } }

/* ---------- Prose (CKEditor output) ---------- */
.prose { color: var(--c-text); font-size: 1.0625rem; line-height: var(--lh-prose); max-width: 72ch; overflow-wrap: break-word; word-wrap: break-word; }
.prose.prose--wide { max-width: none; }
.prose > :first-child { margin-top: 0; }
.prose > :last-child { margin-bottom: 0; }
.prose p, .prose ul, .prose ol, .prose blockquote, .prose pre, .prose figure, .prose table, .prose .table, .prose dl { margin: 0 0 1.25em; }
.prose h2, .prose h3, .prose h4, .prose h5 { margin: 2em 0 .6em; scroll-margin-top: calc(var(--header-h) + 24px); }
.prose h2 { font-size: var(--fs-2xl); padding-top: .4em; }
.prose h3 { font-size: var(--fs-xl); }
.prose h4 { font-size: var(--fs-lg); }
.prose a { color: var(--c-primary-600); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--c-primary-600) 40%, transparent); text-underline-offset: .2em; }
.prose a:hover { text-decoration-color: currentColor; }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li { margin: .35em 0; padding-left: .2em; }
.prose li::marker { color: var(--c-accent-text); }
.prose li > ul, .prose li > ol { margin: .4em 0 0; }
.prose blockquote { margin-inline: 0; padding: .4em 0 .4em 1.4em; border-left: 3px solid var(--c-accent); font: italic 400 1.2em/1.55 var(--font-display); color: var(--c-ink); }
[data-theme="dark"] .prose blockquote { color: #e6ebf5; }
.prose blockquote p:last-child { margin-bottom: 0; }
.prose hr { margin: 2.5em 0; }
.prose code { padding: .15em .4em; border-radius: var(--radius-xs); background: var(--c-surface-3); font-size: .88em; }
.prose pre { padding: 1.1em 1.25em; border-radius: var(--radius-md); background: var(--c-ink); color: #dbe3f3; overflow-x: auto; font-size: .88rem; line-height: 1.65; border: 1px solid var(--c-border); -webkit-overflow-scrolling: touch; }
[data-theme="dark"] .prose pre { background: #060c18; }
.prose pre code { padding: 0; background: none; color: inherit; font-size: inherit; }
.prose img, .prose video { border-radius: var(--radius-md); height: auto; max-width: 100%; }
.prose figure { margin-inline: 0; }
.prose figure.image, .prose figure.media { display: block; }
.prose figure img { margin-inline: auto; }
.prose figcaption { margin-top: .6em; font-size: var(--fs-sm); color: var(--c-text-muted); text-align: center; }
.prose .image-style-align-left, .prose .image-style-side { float: left; margin: .3em 1.5em 1em 0; max-width: 50%; }
.prose .image-style-align-right { float: right; margin: .3em 0 1em 1.5em; max-width: 50%; }
.prose .image-style-align-center { margin-inline: auto; }
@media (max-width: 600px) { .prose .image-style-align-left, .prose .image-style-align-right, .prose .image-style-side { float: none; max-width: 100%; margin: 0 0 1em; } }
.prose::after { content: ""; display: block; clear: both; }
.prose table { width: 100%; border-collapse: collapse; font-size: .95rem; display: block; overflow-x: auto; max-width: 100%; -webkit-overflow-scrolling: touch; }
.prose figure.table { overflow-x: auto; display: block; }
.prose figure.table table { display: table; min-width: 100%; }
.prose th, .prose td { padding: .7em .9em; border: 1px solid var(--c-border); text-align: left; vertical-align: top; }
.prose th { background: var(--c-surface-2); font-weight: 650; color: var(--c-ink); }
[data-theme="dark"] .prose th { color: #f1f4fa; }
.prose tbody tr:nth-child(even) td { background: color-mix(in srgb, var(--c-surface-2) 55%, transparent); }
.prose iframe, .prose .video-embed { max-width: 100%; border-radius: var(--radius-md); }
.prose figure.media, .prose .video-embed, .prose .embed-responsive { position: relative; width: 100%; }
.prose iframe[src*="youtube"], .prose iframe[src*="vimeo"], .prose oembed + iframe { width: 100%; aspect-ratio: 16 / 9; height: auto; }
.prose .raw-html-embed, .prose .media > div { max-width: 100%; }
.prose .media > div[style] { padding-bottom: 56.25% !important; height: 0 !important; position: relative; }
.prose .media > div[style] iframe { position: absolute; inset: 0; width: 100%; height: 100%; }
.prose mark { padding: .05em .25em; }
.prose .todo-list { list-style: none; padding-left: 0; }
.prose kbd { padding: .1em .45em; border: 1px solid var(--c-border-strong); border-bottom-width: 2px; border-radius: var(--radius-xs); background: var(--c-surface-2); font-size: .85em; }

/* ---------- Toasts ---------- */
.toast-region { position: fixed; z-index: var(--z-toast); right: var(--space-4); bottom: var(--space-4); display: flex; flex-direction: column; gap: .6rem; width: min(24rem, calc(100vw - 2rem)); pointer-events: none; }
.toast { pointer-events: auto; display: flex; gap: .7rem; align-items: flex-start; padding: .85rem 1rem; border-radius: var(--radius-md); background: var(--c-ink); color: #eef2fa; box-shadow: var(--shadow-lg); border-left: 3px solid var(--c-accent); font-size: .92rem; line-height: 1.45; animation: toast-in 300ms var(--ease); }
[data-theme="dark"] .toast { background: var(--c-surface-3); color: var(--c-text); }
.toast--success { border-left-color: var(--c-success); }
.toast--error { border-left-color: var(--c-danger); }
.toast button { margin-left: auto; background: none; border: 0; color: inherit; opacity: .7; padding: 0 .25rem; font-size: 1.1rem; line-height: 1; }
.toast.is-leaving { opacity: 0; transform: translateY(8px); transition: opacity 240ms, transform 240ms; }
@keyframes toast-in { from { opacity: 0; transform: translateY(10px); } }

/* ---------- Misc ---------- */
.divider { height: 1px; background: var(--c-border); border: 0; margin: var(--space-6) 0; }
.meta-list { display: grid; gap: var(--space-4); margin: 0; }
.meta-list dt { font-size: var(--fs-xs); font-weight: 600; color: var(--c-text-faint); margin-bottom: .15rem; }
.meta-list dd { margin: 0; color: var(--c-text); font-weight: 500; overflow-wrap: anywhere; }
.social { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; margin: 0; padding: 0; }
.social a { display: inline-grid; place-items: center; width: 2.5rem; height: 2.5rem; border-radius: var(--radius-md); border: 1px solid var(--c-border); color: var(--c-text-muted); text-decoration: none; transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast), transform var(--t-fast); }
.social a:hover { color: var(--c-primary-600); border-color: var(--c-primary-600); background: var(--c-primary-soft); transform: translateY(-2px); }
.meter { height: 6px; border-radius: 99px; background: var(--c-surface-3); overflow: hidden; }
.meter > span { display: block; height: 100%; width: var(--w, 0%); background: var(--c-primary-600); border-radius: inherit; transform-origin: left; transition: transform 1s var(--ease); }
.js-reveal .reveal:not(.is-visible) .meter > span, .js-reveal .meter.reveal:not(.is-visible) > span { transform: scaleX(0); }

/* Page enter transition, skeletons, tool-launch feedback (all disabled for reduced motion) */
@media (prefers-reduced-motion: no-preference) {
  @view-transition { navigation: auto; }
  main, #main { animation: bgPageIn .28s ease-out both; }
  @keyframes bgPageIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
  .skeleton { background: linear-gradient(90deg, rgba(128,128,150,.12) 25%, rgba(128,128,150,.22) 37%, rgba(128,128,150,.12) 63%); background-size: 400% 100%; animation: bgSkel 1.4s ease infinite; border-radius: 8px; min-height: 1em; }
  @keyframes bgSkel { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }
  .tool-frame-wrap.is-loading::after, .tool-embed.is-loading::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent, rgba(128,128,150,.18), transparent); background-size: 200% 100%; animation: bgSkel 1.2s linear infinite; pointer-events: none; }
  .btn:active { transform: scale(.98); }
}
@media (prefers-reduced-motion: reduce) { .skeleton { background: rgba(128,128,150,.15); } }
img.is-broken { visibility: hidden; }