/* ==========================================================================
   Conferencias y Galería — davidbuenov.com
   Comparte la misma escala tipográfica y variables que projects-index.css
   ========================================================================== */

/* --- 1. MODO CLARO (Por defecto) --- */
#content.cf,
#content.cf .content-wrap,
.cf {
  --cf-bg:        oklch(0.985 0.003 250);
  --cf-bg-soft:   oklch(0.962 0.004 250);
  --cf-surface:   oklch(1 0 0);
  --cf-border:    oklch(0.9 0.006 250);
  --cf-border-2:  oklch(0.83 0.008 250);
  --cf-text:      oklch(0.24 0.012 250);
  --cf-text-soft: oklch(0.46 0.01 250);
  --cf-text-mute: oklch(0.58 0.01 250);
  --cf-accent:    oklch(0.55 0.11 195);
  --cf-accent-bg: oklch(0.55 0.11 195 / 0.1);
  --cf-hero:      radial-gradient(110% 100% at 85% 0%, oklch(0.94 0.03 195) 0%, var(--cf-bg) 60%);

  --cf-sans: 'IBM Plex Sans', system-ui, -apple-system, "Segoe UI", sans-serif;
  --cf-display: 'Space Grotesk', var(--cf-sans);
  --cf-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  background: var(--cf-bg) !important;
  color: var(--cf-text);
  font-family: var(--cf-sans);
}

/* --- 2. MODO OSCURO AUTOMÁTICO (Preferencias del sistema OS) --- */
@media (prefers-color-scheme: dark) {
  html:not(.light):not([data-bs-theme="light"]) body:not(.light) #content.cf,
  html:not(.light):not([data-bs-theme="light"]) body:not(.light) #content.cf .content-wrap,
  html:not(.light):not([data-bs-theme="light"]) body:not(.light) .cf {
    --cf-bg:        oklch(0.16 0.012 250);
    --cf-bg-soft:   oklch(0.145 0.01 250);
    --cf-surface:   oklch(0.195 0.012 250);
    --cf-border:    oklch(0.27 0.012 250);
    --cf-border-2:  oklch(0.36 0.014 250);
    --cf-text:      oklch(0.95 0.006 250);
    --cf-text-soft: oklch(0.78 0.01 250);
    --cf-text-mute: oklch(0.66 0.012 250);
    --cf-accent:    oklch(0.82 0.13 178);
    --cf-accent-bg: oklch(0.82 0.13 178 / 0.14);
    --cf-hero:      radial-gradient(110% 100% at 85% 0%, oklch(0.26 0.05 190) 0%, var(--cf-bg) 60%);
  }
}

/* --- 3. MODO OSCURO FORZADO (Botón Luna / localStorage = dark) --- */
html[data-bs-theme="dark"] #content.cf,
html[data-bs-theme="dark"] #content.cf .content-wrap,
html[data-bs-theme="dark"] .cf,
html.dark #content.cf,
html.dark #content.cf .content-wrap,
html.dark .cf,
body.dark:not(.light) #content.cf,
body.dark:not(.light) #content.cf .content-wrap,
body.dark:not(.light) .cf {
  --cf-bg:        oklch(0.16 0.012 250);
  --cf-bg-soft:   oklch(0.145 0.01 250);
  --cf-surface:   oklch(0.195 0.012 250);
  --cf-border:    oklch(0.27 0.012 250);
  --cf-border-2:  oklch(0.36 0.014 250);
  --cf-text:      oklch(0.95 0.006 250);
  --cf-text-soft: oklch(0.78 0.01 250);
  --cf-text-mute: oklch(0.66 0.012 250);
  --cf-accent:    oklch(0.82 0.13 178);
  --cf-accent-bg: oklch(0.82 0.13 178 / 0.14);
  --cf-hero:      radial-gradient(110% 100% at 85% 0%, oklch(0.26 0.05 190) 0%, var(--cf-bg) 60%);
}

/* --- 4. MODO CLARO FORZADO (Botón Sol / localStorage = light) --- */
html.light #content.cf,
html.light #content.cf .content-wrap,
html.light .cf,
body.light #content.cf,
body.light #content.cf .content-wrap,
body.light .cf,
html[data-bs-theme="light"] #content.cf,
html[data-bs-theme="light"] #content.cf .content-wrap,
html[data-bs-theme="light"] .cf {
  --cf-bg:        oklch(0.985 0.003 250) !important;
  --cf-bg-soft:   oklch(0.962 0.004 250) !important;
  --cf-surface:   oklch(1 0 0) !important;
  --cf-border:    oklch(0.9 0.006 250) !important;
  --cf-border-2:  oklch(0.83 0.008 250) !important;
  --cf-text:      oklch(0.24 0.012 250) !important;
  --cf-text-soft: oklch(0.46 0.01 250) !important;
  --cf-text-mute: oklch(0.58 0.01 250) !important;
  --cf-accent:    oklch(0.55 0.11 195) !important;
  --cf-accent-bg: oklch(0.55 0.11 195 / 0.1) !important;
  --cf-hero:      radial-gradient(110% 100% at 85% 0%, oklch(0.94 0.03 195) 0%, var(--cf-bg) 60%) !important;
}

.cf *, .cf *::before, .cf *::after { box-sizing: border-box; }
.cf-wrap { padding: 0; }
.cf-container { max-width: 1160px; margin: 0 auto; padding: 0 clamp(20px, 4vw, 40px); }
.cf a { text-decoration: none; color: inherit; }

/* --------------------------------- CABECERA -------------------------------- */
.cf-hero { padding: clamp(36px, 5vw, 56px) 0 clamp(28px, 4vw, 40px); background: var(--cf-hero); }
.cf-eyebrow { font-family: var(--cf-mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--cf-accent); margin: 0 0 16px; }
.cf-hero-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cf-hero-copy { flex: 1 1 460px; min-width: 0; }
.cf-title { font-family: var(--cf-display); font-weight: 700; font-size: clamp(34px, 4.4vw, 50px); line-height: 1.05; letter-spacing: -.035em; margin: 0 0 16px; color: var(--cf-text); }
.cf-lede { font-size: clamp(15.5px, 1.3vw, 17px); line-height: 1.62; color: var(--cf-text-soft); margin: 0; max-width: 58ch; text-wrap: pretty; }

.cf-counters { display: flex; gap: clamp(22px, 3vw, 34px); margin: 0; }
.cf-counter { margin: 0; }
.cf-counter dd { font-family: var(--cf-display); font-size: 29px; font-weight: 600; letter-spacing: -.02em; margin: 0; color: var(--cf-text); }
.cf-counter dt { font-family: var(--cf-mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--cf-text-mute); margin-top: 5px; font-weight: 400; }

/* --------------------------------- SECCIONES -------------------------------- */
.cf-main { padding: clamp(28px, 3.5vw, 36px) 0 clamp(56px, 6vw, 80px); }
.cf-section + .cf-section { margin-top: clamp(44px, 5vw, 64px); }
.cf-section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-bottom: 22px; }
.cf-section-title { font-family: var(--cf-display); font-weight: 700; font-size: 23px; letter-spacing: -.02em; margin: 0; color: var(--cf-text); }
.cf-section-hint { font-family: var(--cf-mono); font-size: 11.5px; color: var(--cf-text-mute); letter-spacing: .04em; }

/* ------------------------------ ESTADO VACÍO ------------------------------- */
.cf-empty {
  display: flex; align-items: center; gap: 22px; padding: 28px 32px; border-radius: 16px;
  border: 1px dashed var(--cf-border-2); background: var(--cf-surface); flex-wrap: wrap;
}
.cf-empty svg { width: 38px; height: 38px; stroke: var(--cf-accent); fill: none; flex: none; }
.cf-empty-text h3 { font-family: var(--cf-display); font-size: 16.5px; margin: 0 0 6px; font-weight: 600; color: var(--cf-text); }
.cf-empty-text p { margin: 0 0 14px; color: var(--cf-text-soft); font-size: 14px; line-height: 1.55; max-width: 56ch; }
.cf-empty-cta {
  display: inline-flex; align-items: center; gap: 8px; font-family: var(--cf-mono); font-size: 11.5px;
  letter-spacing: .06em; text-transform: uppercase; padding: 9px 16px; border-radius: 999px;
  background: var(--cf-accent-bg); color: var(--cf-accent); border: 1px solid color-mix(in oklab, var(--cf-accent) 45%, transparent);
}
.cf-empty-cta:hover { background: color-mix(in oklab, var(--cf-accent) 22%, transparent); }

/* --------------------------------- FILTROS --------------------------------- */
.cf-filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 26px; padding-bottom: 24px; border-bottom: 1px solid var(--cf-border); }
.cf-filter {
  font-family: var(--cf-mono); font-size: 12px; padding: 8px 14px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--cf-border); background: transparent; color: var(--cf-text-soft);
  transition: border-color .16s ease, color .16s ease, background .16s ease;
}
.cf-filter span { opacity: .55; margin-left: 6px; }
.cf-filter:hover { color: var(--cf-text); border-color: var(--cf-border-2); }
.cf-filter.is-active { border-color: color-mix(in oklab, var(--cf-accent) 55%, transparent); background: var(--cf-accent-bg); color: var(--cf-accent); }

/* ---------------------------- REJILLA DE TARJETAS --------------------------- */
.cf-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.cf-card {
  display: flex; flex-direction: column; border-radius: 16px; overflow: hidden;
  border: 1px solid var(--cf-border); background: var(--cf-surface);
  transition: border-color .18s ease, transform .18s ease;
}
.cf-card:hover { border-color: color-mix(in oklab, var(--cf-accent) 45%, transparent); transform: translateY(-3px); }
.cf-card[hidden] { display: none; }

.cf-card-media { position: relative; aspect-ratio: 16/9; overflow: hidden; background: var(--cf-bg-soft); }
.cf-card-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cf-card-year {
  position: absolute; top: 12px; left: 12px; font-family: var(--cf-mono); font-size: 11px;
  letter-spacing: .08em; padding: 4px 10px; border-radius: 999px; background: rgba(10,14,22,.62);
  color: #fff; backdrop-filter: blur(4px);
}
.cf-card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.cf-card-title { font-family: var(--cf-display); font-size: 17px; font-weight: 600; line-height: 1.3; margin: 0; letter-spacing: -.01em; color: var(--cf-text); }
.cf-card-sub { font-size: 13.5px; color: var(--cf-text-soft); line-height: 1.5; margin: 0; }
.cf-card-meta { font-family: var(--cf-mono); font-size: 11px; color: var(--cf-text-mute); letter-spacing: .04em; margin-top: 2px; }
.cf-card-actions { display: flex; gap: 10px; margin-top: 10px; }
.cf-card-btn {
  font-family: var(--cf-mono); font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase;
  padding: 7px 13px; border-radius: 8px; border: 1px solid var(--cf-border); color: var(--cf-text-soft);
}
.cf-card-btn:hover { border-color: var(--cf-accent); color: var(--cf-accent); }
.cf-card-btn--primary { border-color: color-mix(in oklab, var(--cf-accent) 50%, transparent); color: var(--cf-accent); }

.cf-empty-filtered { font-family: var(--cf-mono); font-size: 13px; color: var(--cf-text-mute); text-align: center; padding: 32px 0; }

/* ------------------------------ ENLACE A GALERÍA ---------------------------- */
.cf-gallery-link { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 32px; padding: 24px 28px; border-radius: 16px; background: var(--cf-surface); border: 1px solid var(--cf-border); flex-wrap: wrap; }
.cf-gallery-link-text h3 { font-family: var(--cf-display); font-size: 17px; margin: 0 0 4px; color: var(--cf-text); }
.cf-gallery-link-text p { margin: 0; color: var(--cf-text-soft); font-size: 13.5px; }
.cf-gallery-thumbs { display: flex; }
.cf-gallery-thumbs img { width: 50px; height: 50px; border-radius: 10px; object-fit: cover; border: 2px solid var(--cf-bg); margin-left: -14px; }
.cf-gallery-thumbs img:first-child { margin-left: 0; }

/* -------------------------------- GALERÍA ----------------------------------- */
.cf-gallery-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); grid-auto-rows: 150px; gap: 12px; }
.cf-gallery-item {
  position: relative; display: block; border-radius: 12px; overflow: hidden;
  background: var(--cf-bg-soft); border: 1px solid var(--cf-border);
}
.cf-gallery-item.is-wide { grid-column: span 2; grid-row: span 2; }
.cf-gallery-item[hidden] { display: none; }
.cf-gallery-item img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .35s ease; }
.cf-gallery-item:hover img { transform: scale(1.06); }
.cf-gallery-overlay {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end;
  padding: 12px 14px; background: linear-gradient(0deg, rgba(0,0,0,.72) 0%, rgba(0,0,0,0) 55%);
  opacity: 0; transition: opacity .2s ease; pointer-events: none;
}
.cf-gallery-item:hover .cf-gallery-overlay { opacity: 1; }
.cf-gallery-overlay strong { color: #fff; font-family: var(--cf-display); font-size: 13.5px; font-weight: 600; line-height: 1.3; }
.cf-gallery-overlay span { display: block; color: rgba(255,255,255,.75); font-family: var(--cf-mono); font-size: 10.5px; letter-spacing: .06em; margin-top: 3px; }

/* -------------------------------- RESPONSIVE ------------------------------- */
@media (max-width: 991px) {
  .cf-grid { grid-template-columns: 1fr; }
  .cf-gallery-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 575px) {
  .cf-counters { gap: 22px; }
  .cf-counter dd { font-size: 24px; }
  .cf-gallery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-auto-rows: 130px; }
  .cf-gallery-item.is-wide { grid-column: span 2; grid-row: span 1; }
  .cf-empty { flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  .cf * { transition: none !important; }
}