/**
 * Wisdom components
 *
 * Everything is namespaced `.w-` so it cannot collide with Bootstrap or with
 * the legacy stylesheets, which stay loaded until the last page is rebuilt.
 * Colours come from tokens.css only — that is what makes dark mode free.
 *
 * Requires: wisdom/tokens.css
 *
 * @package sc_events
 */

/* ==========================================================================
   Button
   Sizes:    .w-btn (44px default) · .w-btn--lg (48) · .w-btn--sm (36)
   Variants: --primary (default) · --outline · --soft · --ghost · --success
   ========================================================================== */

.w-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--w-space-2);
  height: 44px;
  padding: 0 var(--w-space-5);
  border: 1px solid transparent;
  border-radius: var(--w-radius-md);
  background: var(--w-primary);
  color: var(--w-on-primary);
  font-family: var(--w-font);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--w-duration) var(--w-ease),
              border-color var(--w-duration) var(--w-ease),
              color var(--w-duration) var(--w-ease);
}

.w-btn:hover { background: var(--w-primary-hover); color: var(--w-on-primary); }

.w-btn:focus-visible {
  outline: 2px solid var(--w-focus);
  outline-offset: 2px;
  box-shadow: var(--w-focus-ring);
}

.w-btn:active { transform: translateY(1px); }

.w-btn[disabled],
.w-btn[aria-disabled="true"] {
  opacity: .45;
  cursor: not-allowed;
  transform: none;
}

.w-btn--lg { height: 48px; padding: 0 var(--w-space-6); font-size: 0.9375rem; }
.w-btn--sm { height: 36px; padding: 0 var(--w-space-3); font-size: 0.8125rem; }

.w-btn--outline {
  background: transparent;
  border-color: var(--w-grey-300);
  color: var(--w-text);
}
.w-btn--outline:hover {
  background: var(--w-surface-2);
  border-color: var(--w-grey-400);
  color: var(--w-text);
}

.w-btn--soft {
  background: var(--w-primary-soft);
  color: var(--w-primary);
}
.w-btn--soft:hover { background: var(--w-burgundy-200); color: var(--w-primary); }

.w-btn--ghost {
  background: transparent;
  padding: 0 var(--w-space-3);
  color: var(--w-primary);
}
.w-btn--ghost:hover { background: var(--w-primary-soft); color: var(--w-primary); }

.w-btn--success { background: var(--w-teal); }
.w-btn--success:hover { background: var(--w-teal-700); }

.w-btn--gold {
  background: transparent;
  border-color: var(--w-gold);
  color: var(--w-gold);
}
.w-btn--gold:hover { background: var(--w-gold-soft); }

/* Outline and ghost need a lifted border on ink surfaces, where --w-border
   is too close to the background to read as an edge. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .w-btn--outline { border-color: var(--w-ink-600); }
}
:root[data-theme="dark"] .w-btn--outline { border-color: var(--w-ink-600); }

/* Loading — the label stays in place so the button does not resize. */
.w-btn[data-loading="true"] { position: relative; color: transparent; pointer-events: none; }
.w-btn[data-loading="true"]::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  color: var(--w-on-primary);
  animation: w-spin .8s linear infinite;
}
.w-btn--outline[data-loading="true"]::after,
.w-btn--ghost[data-loading="true"]::after,
.w-btn--soft[data-loading="true"]::after { color: var(--w-primary); }

@keyframes w-spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .w-btn { transition: none; }
  .w-btn:active { transform: none; }
  .w-btn[data-loading="true"]::after { animation-duration: 2s; }
}

/* ==========================================================================
   Form controls
   ========================================================================== */

.w-field { display: flex; flex-direction: column; gap: var(--w-space-2); }

.w-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--w-text);
}

.w-input,
.w-select,
.w-textarea {
  width: 100%;
  min-height: 44px;
  padding: var(--w-space-3) var(--w-space-4);
  border: 1px solid var(--w-border);
  border-radius: var(--w-radius-md);
  background: var(--w-surface);
  color: var(--w-text);
  font-family: var(--w-font);
  font-size: var(--w-body-size);
  line-height: var(--w-body-lh);
  transition: border-color var(--w-duration) var(--w-ease),
              box-shadow var(--w-duration) var(--w-ease);
}

.w-textarea { min-height: 120px; resize: vertical; }

.w-input::placeholder,
.w-textarea::placeholder { color: var(--w-text-3); }

.w-input:focus,
.w-select:focus,
.w-textarea:focus {
  outline: none;
  border-color: var(--w-primary);
  box-shadow: var(--w-focus-ring);
}

.w-input[disabled],
.w-select[disabled],
.w-textarea[disabled] {
  background: var(--w-surface-2);
  color: var(--w-text-3);
  cursor: not-allowed;
}

.w-input[aria-invalid="true"],
.w-select[aria-invalid="true"],
.w-textarea[aria-invalid="true"] { border-color: var(--w-burgundy-600); }

/* The arrow is drawn with a gradient so no image request is needed, and it
   flips side automatically in RTL. */
.w-select {
  appearance: none;
  padding-inline-end: var(--w-space-10);
  background-image:
    linear-gradient(45deg, transparent 50%, currentColor 50%),
    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position:
    right calc(var(--w-space-5) + 4px) center,
    right var(--w-space-5) center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
[dir="rtl"] .w-select {
  background-position:
    left var(--w-space-5) center,
    left calc(var(--w-space-5) + 4px) center;
}

.w-hint { font-size: 0.75rem; color: var(--w-text-3); }
.w-error { font-size: 0.75rem; color: var(--w-burgundy-600); }

/* ==========================================================================
   Tag · Pill · Badge
   ========================================================================== */

.w-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--w-space-2);
  height: 28px;
  padding: 0 var(--w-space-3);
  border: 1px solid var(--w-border);
  border-radius: var(--w-radius-pill);
  background: var(--w-surface-2);
  color: var(--w-text-2);
  font-size: 0.8125rem;
  font-weight: 500;
  white-space: nowrap;
}

.w-tag--primary { background: var(--w-primary-soft); border-color: transparent; color: var(--w-primary); }
.w-tag--teal    { background: var(--w-teal-soft);    border-color: transparent; color: var(--w-teal); }
.w-tag--gold    { background: var(--w-gold-soft);    border-color: var(--w-gold); color: var(--w-gold-700); }

/* Status dot — pair with .w-tag--teal for "Registration open",
   .w-tag--primary for "Live now". */
.w-tag__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  flex: none;
}

/* Tier badge — uppercase label, gold hairline. */
.w-badge {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 var(--w-space-2);
  border: 1px solid var(--w-gold);
  border-radius: var(--w-radius-xs);
  color: var(--w-gold-700);
  font-size: var(--w-caption-size);
  font-weight: var(--w-caption-weight);
  letter-spacing: var(--w-caption-ls);
  line-height: 1;
  text-transform: uppercase;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .w-badge,
  :root:not([data-theme="light"]) .w-tag--gold { color: var(--w-gold); }
}
:root[data-theme="dark"] .w-badge,
:root[data-theme="dark"] .w-tag--gold { color: var(--w-gold); }

/* ==========================================================================
   Card — the same shell whether or not it carries an image.
   ========================================================================== */

.w-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--w-border);
  border-radius: var(--w-radius-lg);
  background: var(--w-surface);
  box-shadow: var(--w-shadow-2);
  overflow: hidden;
  transition: box-shadow var(--w-duration) var(--w-ease),
              border-color var(--w-duration) var(--w-ease);
}

.w-card--interactive:hover {
  box-shadow: var(--w-shadow-3);
  border-color: var(--w-grey-300);
}

.w-card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--w-ink);
  overflow: hidden;
}

.w-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Designed fallback for an empty slot: ink panel with a burgundy tint, so a
   missing image still reads as deliberate rather than broken. */
.w-card__media--empty {
  background:
    linear-gradient(0deg, var(--w-burgundy-950) 0%, transparent 100%),
    var(--w-ink);
  display: grid;
  place-items: center;
}

.w-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--w-space-3);
  padding: var(--w-space-6);
}

.w-card__title {
  font-size: var(--w-h3-size);
  line-height: var(--w-h3-lh);
  font-weight: var(--w-h3-weight);
  letter-spacing: var(--w-h3-ls);
  color: var(--w-text);
  margin: 0;
}

.w-card__meta {
  font-size: var(--w-small-size);
  line-height: var(--w-small-lh);
  font-weight: var(--w-small-weight);
  color: var(--w-text-2);
  font-variant-numeric: tabular-nums;
}

.w-card__footer {
  display: flex;
  align-items: center;
  gap: var(--w-space-3);
  padding: var(--w-space-4) var(--w-space-6);
  border-top: 1px solid var(--w-border);
  margin-top: auto;
}

/* ==========================================================================
   Empty state
   ========================================================================== */

.w-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--w-space-3);
  padding: var(--w-space-16) var(--w-space-6);
  border: 1px dashed var(--w-border);
  border-radius: var(--w-radius-lg);
  text-align: center;
  color: var(--w-text-2);
}

.w-empty__title {
  font-size: var(--w-h4-size);
  font-weight: var(--w-h4-weight);
  color: var(--w-text);
}

/* ==========================================================================
   Skeleton — for content that is still loading.
   ========================================================================== */

.w-skeleton {
  border-radius: var(--w-radius-xs);
  background: linear-gradient(
    90deg,
    var(--w-surface-2) 25%,
    var(--w-border) 37%,
    var(--w-surface-2) 63%
  );
  background-size: 400% 100%;
  animation: w-shimmer 1.4s ease infinite;
}

.w-skeleton--text { height: 1em; margin-block: .3em; }
.w-skeleton--title { height: 1.4em; width: 60%; }

@keyframes w-shimmer {
  0%   { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

@media (prefers-reduced-motion: reduce) {
  .w-skeleton { animation: none; }
}

/* ==========================================================================
   RTL — the design uses logical properties throughout, so only genuinely
   directional graphics need flipping.
   ========================================================================== */

[dir="rtl"] .w-arrow { transform: scaleX(-1); }

/* ---- shared page furniture ----
   A page head, long-form prose and pagination are not specific to any one
   page, and .w-prose had drifted into two copies. They live here so every
   template can rely on them, the fallback templates included. */

.w-page-head {
  max-width: 1360px;
  margin-inline: auto;
  padding: clamp(28px, 4vw, 56px) clamp(20px, 3vw, 40px) 0;
  font-family: var(--w-font);
  color: var(--w-text);
}

.w-page-head h1 {
  margin: 0;
  font-size: var(--w-h1-size);
  line-height: var(--w-h1-lh);
  font-weight: var(--w-h1-weight);
  letter-spacing: var(--w-h1-ls);
}

.w-page-head p {
  margin: var(--w-space-3) 0 0;
  font-size: var(--w-body-lg-size);
  line-height: var(--w-body-lg-lh);
  color: var(--w-text-2);
  max-width: 60ch;
}

.w-pagination {
  display: flex;
  justify-content: center;
  gap: var(--w-space-2);
  flex-wrap: wrap;
  margin-top: clamp(28px, 4vw, 48px);
}

.w-pagination a,
.w-pagination span {
  min-width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-inline: var(--w-space-3);
  border: 1px solid var(--w-border);
  border-radius: var(--w-radius-pill);
  background: var(--w-surface);
  color: var(--w-text-2);
  font-size: var(--w-body-size);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  text-decoration: none;
}

.w-pagination a:hover { border-color: var(--w-primary); color: var(--w-primary); }
.w-pagination .current { background: var(--w-primary); border-color: var(--w-primary); color: var(--w-on-primary); }

/* On the listing the workshop cards become a grid; on the home they are a rail,
   so the card itself carries no width of its own here. */
.w-prose { color: var(--w-text-2); font-size: var(--w-body-size); line-height: 1.75; max-width: 68ch; }
.w-prose p { margin: 0 0 var(--w-space-4); }
.w-prose p:last-child { margin-bottom: 0; }

/* ==========================================================================
   Sponsors page
   ========================================================================== */


/* ---- numbers and dates under RTL ----
   Arabic reverses the visual order of a run like "7–9", so the congress dates
   rendered as "9–7" — wrong information, not just wrong looks. These elements
   hold numerals, times and codes, which read left-to-right in every language.
   `isolate` keeps them positioned correctly in the RTL flow while laying their
   own contents out LTR. */

[dir="rtl"] .w-hero__date,
[dir="rtl"] .w-ev__date,
[dir="rtl"] .w-countdown__value,
[dir="rtl"] .w-stat__value,
[dir="rtl"] .w-slot__time,
[dir="rtl"] .w-pass__code,
[dir="rtl"] .w-tk__price,
[dir="rtl"] .w-event__date,
[dir="rtl"] .w-404__code,
[dir="rtl"] .w-otp {
  direction: ltr;
  unicode-bidi: isolate;
}

/* Mixed "25 faculty" runs flip their number to the wrong end. Isolating each
   run keeps the number attached to the word it belongs to, whichever language
   the label is in. */
[dir="rtl"] .w-ev__tile-sub,
[dir="rtl"] .w-tile__sub,
[dir="rtl"] .w-tk__left,
[dir="rtl"] .w-face__role,
[dir="rtl"] .w-venue__hall,
[dir="rtl"] .w-ev__badge,
[dir="rtl"] .w-count {
  unicode-bidi: isolate;
}