/* PlantIA · cuaderno de campo / herbario */

:root {
  --paper: #efe9da;
  --sheet: #f7f3e8;
  --ink: #1d2a22;
  --ink-soft: #4c5a50;
  --ink-faint: #8a8f84;
  --rule: #cfc6b0;
  --grid: #e3dccb;
  --green: #2f5d3a;
  --rust: #a2492b;
  --ochre: #a8741f;
  --band: rgb(47 93 58 / .09);
  --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --mono: 'Courier Prime', 'Courier New', monospace;
}

* { box-sizing: border-box; }

html { background: var(--paper); }

body {
  margin: 0;
  color: var(--ink);
  font: 400 18px/1.55 var(--serif);
  font-optical-sizing: auto;
  /* Grano de papel muy sutil, sin imágenes */
  background:
    radial-gradient(circle at 20% 10%, rgb(255 255 255 / .35), transparent 40%),
    radial-gradient(circle at 80% 70%, rgb(120 100 60 / .05), transparent 45%),
    var(--paper);
}

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--green); }

.masthead, #plates, .method {
  width: min(1080px, 100% - 40px);
  margin-inline: auto;
}

/* ── Cabecera ─────────────────────────────────────────── */

.masthead {
  padding: 40px 0 32px;
  border-bottom: 3px double var(--ink);
}

.masthead__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  font: 400 .8rem/1 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.masthead__kicker { margin: 0; }

.langs { display: flex; gap: 6px; align-items: baseline; }
.langs button {
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  letter-spacing: inherit;
  color: var(--ink-faint);
  cursor: pointer;
}
.langs button[aria-pressed='true'] { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }

.masthead__title {
  margin: 18px 0 12px;
  font: 300 clamp(3.4rem, 11vw, 7.5rem)/.9 var(--serif);
  letter-spacing: -.035em;
}
.masthead__title em { font-weight: 400; color: var(--green); }

.masthead__lead {
  max-width: 34em;
  margin: 0 0 14px;
  font-size: 1.15rem;
  color: var(--ink-soft);
}

.masthead__meta {
  margin: 0;
  font: 400 .8rem var(--mono);
  color: var(--ink-faint);
}

.placeholder { padding: 60px 0; font-style: italic; color: var(--ink-soft); }

/* ── Láminas ──────────────────────────────────────────── */

#plates { display: grid; gap: 56px; padding: 56px 0; }

.plate {
  position: relative;
  display: grid;
  grid-template-columns: minmax(260px, 5fr) 7fr;
  gap: 40px;
  padding: 44px 40px 36px;
  background: var(--sheet);
  box-shadow: 0 1px 0 var(--rule), 0 18px 30px -24px rgb(60 45 20 / .45);
}

/* Cinta de montaje en las esquinas */
.plate::before, .plate::after {
  content: '';
  position: absolute;
  top: -12px;
  width: 92px;
  height: 26px;
  background: rgb(222 210 176 / .78);
  box-shadow: 0 1px 2px rgb(60 45 20 / .12);
}
.plate::before { left: 32px; transform: rotate(-4deg); }
.plate::after { right: 40px; transform: rotate(3deg); }

.plate__number {
  margin: 0 0 6px;
  font: 400 .78rem var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.plate__species {
  margin: 0;
  font: italic 400 clamp(2rem, 4.2vw, 2.9rem)/1.02 var(--serif);
  letter-spacing: -.02em;
}

.plate__name {
  margin: 6px 0 28px;
  font-size: 1.05rem;
  color: var(--ink-soft);
}

/* Etiqueta de espécimen, escrita a máquina */
.label {
  margin: 0;
  padding: 14px 16px 10px;
  border: 1px solid var(--ink);
  font: 400 .86rem/1.4 var(--mono);
  background: rgb(255 255 255 / .35);
}
.label div {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 4px 0;
}
.label dt { color: var(--ink-soft); white-space: nowrap; }
.label div::before { order: 1; content: ''; flex: 1; border-bottom: 1px dotted var(--ink-faint); transform: translateY(-3px); }
.label dd { order: 2; margin: 0; font-weight: 700; white-space: nowrap; }
.label .v-humidity { color: var(--green); }
.label .v-temperature { color: var(--rust); }

/* Sello de estado */
.plate__stamp {
  position: absolute;
  top: 30px;
  right: 34px;
  padding: 6px 12px 5px;
  border: 2px solid currentColor;
  outline: 1px solid currentColor;
  outline-offset: 2px;
  font: 700 .8rem/1 var(--mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--green);
  transform: rotate(-7deg);
  opacity: .82;
  mix-blend-mode: multiply;
}
.plate__stamp[data-status='attention'] { color: var(--ochre); }
.plate__stamp[data-status='critical'] { color: var(--rust); transform: rotate(5deg); }
.plate__stamp[data-status='none'] { color: var(--ink-faint); }

/* Trazo sobre papel milimetrado (el margen deja sitio al sello) */
.trace { margin: 56px 0 0; }
.trace__svg { display: block; width: 100%; height: auto; overflow: visible; }
.trace__svg .grid line { stroke: var(--grid); stroke-width: 1; }
.trace__svg .grid line.major { stroke: var(--rule); }
.trace__svg .band { fill: var(--band); }
.trace__svg .hum { fill: none; stroke: var(--green); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.trace__svg .temp { fill: none; stroke: var(--rust); stroke-width: 1.6; stroke-dasharray: 5 4; stroke-linejoin: round; }
.trace__svg .dot-hum { fill: var(--green); }
.trace__svg .dot-temp { fill: var(--rust); }
.trace__svg text { font: 400 11px var(--mono); fill: var(--ink-faint); }
.trace__svg .empty { font: italic 400 16px var(--serif); fill: var(--ink-soft); }

.trace figcaption {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin-top: 8px;
  font: 400 .75rem var(--mono);
  color: var(--ink-soft);
}
.key { display: inline-block; width: 22px; height: 0; border-top: 2px solid var(--green); }
.key--temp { border-top: 2px dashed var(--rust); margin-left: 8px; }
.key--band { height: 10px; border: 0; background: var(--band); outline: 1px solid var(--rule); margin-left: 8px; }

/* Nota de campo */
.note {
  margin: 26px 0 0;
  padding: 4px 0 4px 20px;
  border-left: 2px solid var(--green);
}
.note__text {
  margin: 0 0 8px;
  font: italic 400 1.2rem/1.5 var(--serif);
}
.note__sign {
  font: 400 .75rem var(--mono);
  letter-spacing: .04em;
  color: var(--ink-faint);
}

/* ── Método ───────────────────────────────────────────── */

.method {
  padding: 32px 0 56px;
  border-top: 1px solid var(--ink);
}
.method h2 {
  margin: 0 0 14px;
  font: 400 .8rem var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.method ol {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  counter-reset: paso;
}
.method li { counter-increment: paso; color: var(--ink-soft); font-size: 1rem; }
.method li::before {
  content: counter(paso, upper-roman) '.';
  display: block;
  margin-bottom: 4px;
  font: italic 400 1.4rem var(--serif);
  color: var(--green);
}
.method__links { margin: 0; font: 400 .82rem var(--mono); color: var(--ink-soft); }

/* ── Pantallas pequeñas ───────────────────────────────── */

@media (max-width: 820px) {
  .plate { grid-template-columns: 1fr; gap: 8px; padding: 40px 22px 28px; }
  .plate__stamp { top: 22px; right: 18px; font-size: .7rem; }
  .trace { margin-top: 28px; }
  .method ol { grid-template-columns: 1fr; gap: 14px; }
}

@media (max-width: 420px) {
  body { font-size: 17px; }
  .label { font-size: .78rem; padding: 12px; }
  .plate__species { padding-right: 96px; }
  /* El SVG se encoge con la pantalla: compensamos el tamaño de los ejes */
  .trace__svg text { font-size: 19px; }
}

@media (prefers-reduced-motion: no-preference) {
  .plate { animation: rise .5s ease both; }
  .plate:nth-child(2) { animation-delay: .08s; }
  @keyframes rise { from { opacity: 0; transform: translateY(8px); } }
}