/* ============================================
   CALCULADORA DE PLAZOS PROCESALES
   Diseño: Editorial jurídico · Versión 1.0
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,600;0,700;1,600&family=Source+Serif+4:ital,opsz,wght@0,8..60,300;0,8..60,400;0,8..60,500;1,8..60,300&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Variables ─────────────────────────────── */
:root {
  --ink:        #1a1410;
  --ink-2:      #3d3530;
  --ink-3:      #7a6f68;
  --parchment:  #faf7f2;
  --cream:      #f3ede3;
  --gold:       #b8860b;
  --gold-light: #d4a843;
  --gold-pale:  #fdf3d9;
  --red:        #8b1a1a;
  --red-pale:   #fdf2f2;
  --green:      #1a5c2e;
  --green-pale: #f0f7f2;
  --border:     #ddd4c8;
  --border-dark:#b8a898;
  --shadow-sm:  0 2px 8px rgba(26,20,16,.08);
  --shadow-md:  0 6px 24px rgba(26,20,16,.12);
  --shadow-lg:  0 16px 48px rgba(26,20,16,.16);
  --radius:     4px;
  --radius-lg:  8px;
  --ff-display: 'Playfair Display', Georgia, serif;
  --ff-body:    'Source Serif 4', Georgia, serif;
  --ff-mono:    'JetBrains Mono', 'Courier New', monospace;
  --transition: 200ms ease;
}

/* ── Reset mínimo ───────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Wrapper principal ──────────────────────── */
.calc-wrapper {
  font-family: var(--ff-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--parchment);
  max-width: 860px;
  margin: 0 auto;
  padding: 0 0 48px;
}

/* ── CABECERA ───────────────────────────────── */
.calc-header {
  background: var(--ink);
  color: var(--parchment);
  padding: 48px 48px 40px;
  position: relative;
  overflow: hidden;
}

.calc-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 60px,
      rgba(184,134,11,.08) 60px,
      rgba(184,134,11,.08) 61px
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 40px,
      rgba(184,134,11,.04) 40px,
      rgba(184,134,11,.04) 41px
    );
  pointer-events: none;
}

.calc-header::after {
  content: '§';
  position: absolute;
  right: 40px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--ff-display);
  font-size: 160px;
  color: rgba(184,134,11,.08);
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.calc-header__badge {
  font-family: var(--ff-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.calc-header__title {
  font-family: var(--ff-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--parchment);
  position: relative;
  z-index: 1;
  margin-bottom: 16px;
}

.calc-header__title em {
  font-style: italic;
  color: var(--gold-light);
}

.calc-header__subtitle {
  font-size: 15px;
  font-weight: 300;
  color: rgba(250,247,242,.72);
  max-width: 520px;
  position: relative;
  z-index: 1;
}

/* ── AVISO ──────────────────────────────────── */
.calc-notice {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--gold-pale);
  border-left: 3px solid var(--gold);
  padding: 14px 20px;
  margin: 24px 24px 0;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.calc-notice__icon { font-size: 16px; flex-shrink: 0; margin-top: 2px; }
.calc-notice p { font-size: 13px; color: var(--ink-2); font-style: italic; }

/* ── FORMULARIO ─────────────────────────────── */
.calc-form {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px 32px;
  margin: 24px 24px 0;
  box-shadow: var(--shadow-sm);
}

.calc-form__title {
  font-family: var(--ff-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.calc-form__title::before {
  content: '§ ';
  color: var(--gold);
  font-style: italic;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.calc-field { display: flex; flex-direction: column; gap: 6px; }
.calc-field--full { grid-column: 1 / -1; }

.calc-label {
  font-family: var(--ff-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.calc-label__required { color: var(--red); margin-left: 2px; }

.calc-select,
.calc-input {
  font-family: var(--ff-body);
  font-size: 15px;
  color: var(--ink);
  background: var(--parchment);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
}

.calc-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237a6f68' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.calc-select:focus,
.calc-input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(184,134,11,.12);
  background: #fff;
}

.calc-field__help {
  font-size: 12px;
  color: var(--ink-3);
  font-style: italic;
}

/* ── BOTÓN CALCULAR ─────────────────────────── */
.calc-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  margin-top: 28px;
  padding: 15px 28px;
  background: var(--ink);
  color: var(--parchment);
  border: none;
  border-radius: var(--radius);
  font-family: var(--ff-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: .02em;
  cursor: pointer;
  transition: background var(--transition), transform 100ms ease, box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.calc-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(184,134,11,.15), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.calc-btn:hover { background: var(--ink-2); box-shadow: var(--shadow-md); }
.calc-btn:hover::before { opacity: 1; }
.calc-btn:active { transform: translateY(1px); }
.calc-btn__icon { font-size: 18px; }

/* ── RESULTADO ──────────────────────────────── */
.calc-result {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px 32px;
  margin: 24px 24px 0;
  box-shadow: var(--shadow-md);
  animation: slideIn .35s ease;
}

.calc-result[hidden] { display: none; }

@keyframes slideIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.calc-result__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 12px;
}

.calc-result__title {
  font-family: var(--ff-display);
  font-size: 1.35rem;
  font-weight: 600;
}

.calc-result__title::before {
  content: '✓ ';
  color: var(--green);
}

.calc-result__reset {
  font-family: var(--ff-mono);
  font-size: 12px;
  color: var(--ink-3);
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 14px;
  cursor: pointer;
  transition: all var(--transition);
}
.calc-result__reset:hover { color: var(--ink); border-color: var(--border-dark); }

/* Summary card */
.calc-result__summary {
  background: var(--green-pale);
  border: 1px solid rgba(26,92,46,.2);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 24px;
}

.summary-main {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.summary-label {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--green);
}

.summary-date {
  font-family: var(--ff-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--green);
}

.summary-meta {
  font-size: 13px;
  color: var(--ink-3);
  font-style: italic;
}

/* Grid de plazos */
.calc-result__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.plazo-card {
  background: var(--parchment);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  transition: box-shadow var(--transition);
}

.plazo-card:hover { box-shadow: var(--shadow-sm); }

.plazo-card__label {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 4px;
}

.plazo-card__days {
  font-family: var(--ff-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.1;
}

.plazo-card__unit {
  font-size: 11px;
  color: var(--ink-3);
  margin-left: 4px;
}

.plazo-card__date {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  margin-top: 4px;
}

.plazo-card__note {
  font-size: 11px;
  color: var(--ink-3);
  font-style: italic;
  margin-top: 4px;
}

.plazo-card--critical {
  border-color: rgba(139,26,26,.3);
  background: var(--red-pale);
}
.plazo-card--critical .plazo-card__days { color: var(--red); }

/* Info procedimiento */
.calc-result__info {
  background: var(--cream);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 14px;
  color: var(--ink-2);
  margin-bottom: 16px;
}

.result-info__title {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 8px;
}

.result-info__item {
  display: flex;
  gap: 8px;
  margin-bottom: 4px;
}

.result-info__key {
  font-weight: 500;
  min-width: 120px;
  color: var(--ink-3);
  font-style: italic;
}

/* Advertencia */
.calc-result__warning {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: #fff8e1;
  border: 1px solid #f0c040;
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 13px;
  color: #7a5a00;
}
.calc-result__warning[hidden] { display: none; }

/* ── FUENTES LEGALES ─────────────────────────── */
.calc-sources {
  margin: 40px 24px 0;
  padding-top: 32px;
  border-top: 2px solid var(--border);
}

.calc-sources__title {
  font-family: var(--ff-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
}

.calc-sources__title::before {
  content: '§ ';
  color: var(--gold);
  font-style: italic;
}

.calc-sources__intro {
  font-size: 14px;
  color: var(--ink-3);
  margin-bottom: 24px;
  font-style: italic;
}

.calc-sources__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.calc-source-card {
  display: flex;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.calc-source-card:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--border-dark);
}

.calc-source-card__icon { font-size: 22px; flex-shrink: 0; }

.calc-source-card__name {
  font-family: var(--ff-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 4px;
  line-height: 1.4;
}

.calc-source-card__desc {
  font-size: 12px;
  color: var(--ink-3);
  margin-bottom: 10px;
  font-style: italic;
  line-height: 1.5;
}

.calc-source-card__link {
  font-family: var(--ff-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--gold);
  text-decoration: none;
  letter-spacing: .04em;
  transition: color var(--transition);
}

.calc-source-card__link:hover { color: var(--ink); text-decoration: underline; }

.calc-sources__update {
  font-size: 12px;
  color: var(--ink-3);
  font-style: italic;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ── RESPONSIVE ─────────────────────────────── */
@media (max-width: 640px) {
  .calc-header { padding: 32px 24px 28px; }
  .calc-header::after { font-size: 100px; right: 16px; }
  .calc-form,
  .calc-result { padding: 24px 20px; margin: 16px 12px 0; }
  .calc-notice { margin: 16px 12px 0; }
  .calc-sources { margin: 32px 12px 0; }
  .calc-grid { grid-template-columns: 1fr; }
  .calc-result__grid { grid-template-columns: 1fr 1fr; }
  .calc-sources__grid { grid-template-columns: 1fr; }
}

@media (max-width: 400px) {
  .calc-result__grid { grid-template-columns: 1fr; }
}

/* ── ESTADOS ─────────────────────────────────── */
.calc-select:invalid,
.calc-input:invalid { border-color: var(--red); }

.calc-btn:disabled {
  opacity: .5;
  cursor: not-allowed;
  transform: none;
}

/* ── UTILIDADES ──────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}