/* ── Tokens ── */
:root {
  --yellow:       #F5C400;
  --yellow-light: #FFF8D6;
  --yellow-mid:   #F0BE00;
  --black:        #111111;
  --ink:          #1C1C1C;
  --ink-2:        #3A3A3A;
  --ink-3:        #6B6B68;
  --ink-4:        #9B9B97;
  --bg:           #F6F5F0;
  --surface:      #FFFFFF;
  --surface-2:    #F0EEE9;
  --border:       rgba(0,0,0,0.10);
  --border-focus: #F5C400;
  --red:          #D94F3D;
  --green:        #2D7D52;
  --r-sm:         6px;
  --r-md:         10px;
  --r-lg:         16px;
  --r-xl:         22px;
  --shadow-sm:    0 1px 4px rgba(0,0,0,0.06);
  --shadow-md:    0 4px 20px rgba(0,0,0,0.09);
  --shadow-lg:    0 8px 40px rgba(0,0,0,0.12);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── Header ── */
.header {
  background: var(--black);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 16px rgba(0,0,0,0.3);
}
.header-inner {
  max-width: 780px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-badge {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--yellow);
  color: var(--black);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.brand-name {
  font-family: 'DM Serif Display', serif;
  font-size: 17px;
  color: var(--yellow);
  line-height: 1.1;
}
.brand-sub {
  font-size: 11px;
  color: #888;
  margin-top: 1px;
}
.header-tag {
  font-size: 11px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 20px;
  background: rgba(245,196,0,0.15);
  color: var(--yellow);
  border: 1px solid rgba(245,196,0,0.3);
  white-space: nowrap;
}

/* ── Main ── */
.main {
  max-width: 780px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

/* ── Intro ── */
.intro-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--yellow-light);
  border: 1px solid rgba(245,196,0,0.5);
  border-radius: var(--r-lg);
  padding: 16px 20px;
  margin-bottom: 24px;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.6;
}
.intro-icon {
  width: 36px; height: 36px;
  background: var(--yellow);
  color: var(--black);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ── Sections ── */
.form-section {
  background: var(--surface);
  border-radius: var(--r-xl);
  border: 1px solid var(--border);
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
}
.form-section:focus-within {
  box-shadow: var(--shadow-md);
}

.section-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.section-num {
  font-family: 'DM Serif Display', serif;
  font-size: 28px;
  color: var(--yellow);
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}
.section-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 2px;
}
.section-desc {
  font-size: 12px;
  color: var(--ink-4);
}

/* ── Fields ── */
.fields-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field-full { grid-column: 1 / -1; }

label {
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-2);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.req { color: var(--yellow-mid); font-size: 14px; }

input[type="text"],
input[type="date"],
input[type="number"],
select,
textarea {
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  color: var(--ink);
  background: var(--surface-2);
  border: 1.5px solid var(--border);
  border-radius: var(--r-md);
  padding: 10px 14px;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
  outline: none;
  width: 100%;
}
input::placeholder, textarea::placeholder {
  color: var(--ink-4);
  font-size: 13px;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--border-focus);
  background: var(--surface);
  box-shadow: 0 0 0 3px rgba(245,196,0,0.18);
}
input.error, select.error, textarea.error {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(217,79,61,0.12);
}
select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b6b68' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
textarea { resize: vertical; min-height: 80px; }

/* ── Motivos grid ── */
.motivos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 8px;
}
.motivo-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--r-md);
  border: 1.5px solid var(--border);
  background: var(--surface-2);
  cursor: pointer;
  transition: all 0.15s;
  text-align: left;
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  color: var(--ink-2);
  font-weight: 400;
}
.motivo-btn:hover {
  border-color: var(--yellow);
  background: var(--yellow-light);
  color: var(--ink);
}
.motivo-btn.selected {
  border-color: var(--yellow-mid);
  background: var(--yellow);
  color: var(--black);
  font-weight: 600;
}
.motivo-btn .motivo-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  border: 2px solid currentColor;
  flex-shrink: 0;
  transition: background 0.15s;
}
.motivo-btn.selected .motivo-dot {
  background: var(--black);
  border-color: var(--black);
}

/* ── Actions ── */
.form-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 20px;
  flex-wrap: wrap;
}
.btn-primary, .btn-secondary, .btn-outline, .btn-danger-sm {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border-radius: var(--r-md);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  padding: 11px 22px;
  transition: all 0.15s;
}
.btn-primary {
  background: var(--yellow);
  color: var(--black);
}
.btn-primary:hover { background: var(--yellow-mid); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary {
  background: var(--surface-2);
  color: var(--ink-3);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: #e8e6e0; color: var(--ink); }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--black);
  color: #fff;
  padding: 12px 22px;
  border-radius: var(--r-lg);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1), opacity 0.3s;
  opacity: 0;
  z-index: 999;
  white-space: nowrap;
  max-width: 90vw;
  text-align: center;
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}
.toast.success { background: var(--green); }
.toast.error   { background: var(--red); }

/* ── History ── */
.history-section {
  margin-top: 40px;
}
.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 12px;
}
.history-title {
  font-family: 'DM Serif Display', serif;
  font-size: 20px;
  color: var(--ink);
}
.history-sub { font-size: 12px; color: var(--ink-4); margin-top: 2px; }
.history-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--ink-3);
  font-size: 13px;
  padding: 8px 14px;
}
.btn-outline:hover { border-color: var(--yellow); color: var(--ink); background: var(--yellow-light); }
.btn-danger-sm {
  background: transparent;
  border: 1.5px solid rgba(217,79,61,0.25);
  color: var(--red);
  font-size: 13px;
  padding: 8px 14px;
}
.btn-danger-sm:hover { background: rgba(217,79,61,0.07); }

.history-list { display: flex; flex-direction: column; gap: 10px; }

.history-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
  animation: slideIn 0.3s ease;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hc-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}
.hc-product {
  font-weight: 600;
  font-size: 14px;
  color: var(--ink);
}
.hc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
.hc-chip {
  font-size: 11px;
  padding: 2px 9px;
  border-radius: 20px;
  background: var(--surface-2);
  color: var(--ink-3);
}
.hc-chip.yellow { background: var(--yellow); color: var(--black); font-weight: 500; }
.hc-motivo {
  font-size: 12px;
  color: var(--ink-3);
  margin-top: 6px;
}
.hc-obs {
  font-size: 12px;
  color: var(--ink-4);
  margin-top: 4px;
  font-style: italic;
}
.hc-del {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--ink-4);
  padding: 4px;
  border-radius: 6px;
  flex-shrink: 0;
  transition: color 0.15s, background 0.15s;
}
.hc-del:hover { color: var(--red); background: rgba(217,79,61,0.08); }

/* ── Responsive ── */
@media (max-width: 540px) {
  .header-inner { padding: 12px 16px; }
  .main { padding: 20px 14px 50px; }
  .form-section { padding: 18px 16px; border-radius: var(--r-lg); }
  .fields-grid { grid-template-columns: 1fr; }
  .field-full { grid-column: 1; }
  .motivos-grid { grid-template-columns: 1fr; }
  .form-actions { justify-content: stretch; }
  .btn-primary, .btn-secondary { flex: 1; justify-content: center; }
  .section-num { font-size: 22px; }
  .header-tag { display: none; }
}

/* ── Spinner para botón guardando ── */
@keyframes spin {
  to { transform: rotate(360deg); }
}
.spin { animation: spin 0.8s linear infinite; }