/* Actividades de Entregas — ledger/actividades visual world.
   Restrained institutional palette: cream ledger paper + dark ledger
   green + one aged-gold accent, ruled like an official course planilla. */

:root {
  --ink: #18130e;
  --ink-soft: #4a4335;
  --green: #0f3d2e;
  --green-deep: #0a2a20;
  --green-line: #1c5240;
  --gold: #b8892b;
  --gold-deep: #7e5716;
  --paper: #f5ecd8;
  --paper-alt: #ecdfc0;
  --paper-raised: #faf4e6;
  --rule: #c9b98c;
  --rule-strong: #a5936757;
  --shadow: 0 18px 40px -22px rgba(10, 20, 15, 0.55), 0 2px 6px rgba(10, 20, 15, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  scrollbar-color: var(--gold-deep) var(--paper-alt);
  scrollbar-width: thin;
}

::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: var(--paper-alt);
}

::-webkit-scrollbar-thumb {
  background-color: var(--gold-deep);
  border-radius: 6px;
  border: 2px solid var(--paper-alt);
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--green-deep);
  background-image:
    radial-gradient(ellipse at 20% -10%, var(--green-line) 0%, transparent 55%),
    linear-gradient(180deg, var(--green-deep), #071c15 65%, #061712 100%);
  color: var(--ink);
  font-family: "PT Serif", Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.55;
  padding: clamp(1.25rem, 4vw, 4rem) clamp(1rem, 4vw, 1.5rem);
  -webkit-font-smoothing: antialiased;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

::selection {
  background: var(--gold);
  color: var(--green-deep);
}

*:focus-visible {
  outline: 2.5px solid var(--gold-deep);
  outline-offset: 3px;
  border-radius: 2px;
}

/* --- the sheet ------------------------------------------------------- */

.sheet {
  max-width: 62rem;
  margin: 0 auto;
  background: var(--paper);
  background-image: repeating-linear-gradient(
    180deg,
    transparent,
    transparent 27px,
    var(--rule) 27px,
    var(--rule) 28px
  );
  border: 1px solid var(--rule-strong);
  box-shadow: var(--shadow);
  padding: clamp(1.75rem, 5vw, 3.25rem) clamp(1.5rem, 6vw, 3.75rem) clamp(2rem, 5vw, 3.5rem);
  position: relative;
}

.sheet::before {
  /* a punched binder edge along the left margin, like a real ledger sheet */
  content: "";
  position: absolute;
  left: clamp(0.9rem, 3.4vw, 2.1rem);
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--gold);
  opacity: 0.35;
}

/* --- header / identity block ----------------------------------------- */

.sheet-header {
  border-bottom: 3px double var(--green);
  padding-bottom: 1.75rem;
  margin-bottom: 2.25rem;
}

.id-fields {
  margin: 0 0 1.75rem;
  display: grid;
  gap: 0.55rem;
  max-width: 34rem;
}

.id-fields__row {
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  align-items: baseline;
  gap: 0.75rem;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.35rem;
}

.id-fields__row--split {
  grid-template-columns: 1fr;
  border-bottom: none;
  padding-bottom: 0;
  display: flex;
  gap: 2rem;
}

.id-fields__row--split > div {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.75rem;
  flex: 1;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.35rem;
}

.id-fields dt {
  font-family: "Zilla Slab", Georgia, serif;
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

.id-fields dd {
  margin: 0;
  color: var(--ink);
}

.title-block h1 {
  font-family: "Zilla Slab", Georgia, serif;
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 2.9rem);
  letter-spacing: -0.01em;
  line-height: 1.05;
  margin: 0 0 0.65rem;
  color: var(--green);
}

.title-block__lede {
  margin: 0;
  max-width: 46rem;
  color: var(--ink-soft);
}

.repo-link {
  color: var(--green);
  text-decoration-color: var(--gold);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  font-family: "Courier Prime", ui-monospace, monospace;
  font-weight: 700;
}

.repo-link:hover {
  color: var(--gold-deep);
}

/* --- the ledger table --------------------------------------------------*/

.ledger {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.97rem;
}

.ledger caption {
  text-align: left;
}

.ledger thead th {
  text-align: left;
  font-family: "Zilla Slab", Georgia, serif;
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--green);
  border-bottom: 2px solid var(--green);
  padding: 0 0.75rem 0.6rem 0;
}

.ledger thead th.col-no {
  width: 3.25rem;
}

.ledger thead th.col-rama {
  width: 10rem;
}

.ledger thead th.col-link {
  width: 8.5rem;
}

.ledger tbody td {
  padding: 1.05rem 0.75rem 1.05rem 0;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

.ledger tbody tr:last-child td {
  border-bottom: 2px solid var(--green);
}

.ledger tbody tr:nth-child(even) {
  background: var(--paper-alt);
}

.ledger-row {
  transition: background-color 160ms ease;
}

.ledger-row:hover {
  background: var(--paper-raised);
}

.col-entrega {
  font-family: "Zilla Slab", Georgia, serif;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

.col-desc {
  color: var(--ink-soft);
}

.mono {
  font-family: "Courier Prime", ui-monospace, "SFMono-Regular", monospace;
  font-variant-numeric: tabular-nums;
}

.rama-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--green);
  background: rgba(15, 61, 46, 0.08);
  border: 1px solid rgba(15, 61, 46, 0.28);
  border-radius: 3px;
  padding: 0.18rem 0.5rem;
}

.row-no {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.15rem;
  height: 2.15rem;
}

.row-no__digit {
  font-family: "Courier Prime", ui-monospace, monospace;
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink-soft);
}

.stamp-icon {
  position: absolute;
  inset: 0;
  color: var(--gold-deep);
  opacity: 0;
  transform: scale(1.6) rotate(-14deg);
  transition: none;
  pointer-events: none;
}

.ledger-row.is-reviewed .stamp-icon {
  opacity: 0.92;
}

.ledger-row.is-reviewed .row-no__digit {
  opacity: 0;
}

.ledger-row.is-stamping .stamp-icon {
  animation: stamp-down 360ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes stamp-down {
  0% {
    opacity: 0;
    transform: scale(2.1) rotate(-14deg);
  }
  55% {
    opacity: 1;
    transform: scale(0.92) rotate(-14deg);
  }
  100% {
    opacity: 0.92;
    transform: scale(1) rotate(-14deg);
  }
}

.see-code {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: "Zilla Slab", Georgia, serif;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--green);
  text-decoration: none;
  border-bottom: 1.5px solid var(--gold);
  padding-bottom: 0.1rem;
  white-space: nowrap;
}

.see-code svg {
  transition: transform 160ms ease;
}

.see-code:hover {
  color: var(--gold-deep);
}

.see-code:hover svg {
  transform: translateX(3px);
}

.ledger-note {
  margin: 1.5rem 0 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
  font-style: italic;
}

.sheet-footer {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.sheet-footer p {
  margin: 0;
}

/* --- reveal-on-load motion (one authored moment) ---------------------- */

[data-reveal] .ledger-row {
  opacity: 0;
  transform: translateY(6px);
}

[data-reveal].is-revealed .ledger-row {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 420ms cubic-bezier(0.16, 1, 0.3, 1) var(--stagger, 0ms),
    transform 420ms cubic-bezier(0.16, 1, 0.3, 1) var(--stagger, 0ms);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] .ledger-row {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .ledger-row.is-reviewed .stamp-icon {
    transform: scale(1) rotate(-14deg);
  }

  .stamp-icon {
    transition: none;
  }

  .ledger-row.is-stamping .stamp-icon {
    animation: none;
  }
}

/* --- responsive: table becomes stacked ledger entries ----------------- */

@media (max-width: 46rem) {
  .sheet {
    padding-top: 1.25rem;
  }

  .sheet-header {
    padding-bottom: 1rem;
    margin-bottom: 1.25rem;
  }

  .id-fields {
    gap: 0.3rem;
    margin-bottom: 1rem;
  }

  .id-fields__row,
  .id-fields__row--split > div {
    grid-template-columns: 5.75rem 1fr;
    padding-bottom: 0.2rem;
  }

  .id-fields dt {
    font-size: 0.64rem;
  }

  .id-fields dd {
    font-size: 0.86rem;
    line-height: 1.3;
  }

  .id-fields__row--split {
    flex-direction: column;
    gap: 0.3rem;
  }

  .title-block h1 {
    font-size: 1.6rem;
    margin-bottom: 0.4rem;
  }

  .title-block__lede {
    font-size: 0.88rem;
    line-height: 1.4;
  }

  .ledger thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
  }

  .ledger,
  .ledger tbody,
  .ledger tbody tr,
  .ledger tbody td {
    display: block;
    width: 100%;
  }

  .ledger tbody tr {
    padding: 1.1rem 0;
    border-bottom: 2px solid var(--green);
  }

  .ledger tbody tr:nth-child(even) {
    background: none;
  }

  .ledger tbody td {
    border-bottom: none;
    padding: 0.3rem 0;
  }

  .ledger tbody tr:last-child {
    border-bottom: 2px solid var(--green);
  }

  .col-no {
    display: flex !important;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.3rem;
  }

  .col-entrega {
    font-size: 1.05rem;
    white-space: normal;
  }

  .col-desc::before,
  .col-rama::before {
    content: attr(data-label) ": ";
    font-family: "Zilla Slab", Georgia, serif;
    font-weight: 600;
    font-size: 0.64rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gold-deep);
    display: block;
    margin-bottom: 0.15rem;
  }

  .col-link {
    margin-top: 0.6rem;
  }
}