/* Cotización — estilos alineados con landing ModulArt */

.cot-page {
  background: var(--bg-section);
}

.header__nav a.is-active {
  color: var(--accent);
}

.cot-main {
  padding-top: var(--header-h);
  min-height: 100dvh;
}

.cot-hero {
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-card) 100%);
  border-bottom: 1px solid var(--border);
  padding: 2.5rem 0 2rem;
  text-align: center;
}

.cot-hero__tagline {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--silver);
  margin-bottom: 0.5rem;
}

.cot-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.cot-hero h1 span {
  color: var(--accent);
}

.cot-hero__date {
  font-size: 14px;
  color: var(--text-muted);
}

.cot-form-wrap {
  padding: 2rem 0 3rem;
}

.cot-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

.cot-section h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 400;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.cot-section .section__divider {
  margin-bottom: 0.75rem;
}

.cot-section__head {
  margin-bottom: 1.25rem;
}

.cot-hint {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.cot-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--silver);
}

.cot-optional {
  font-weight: 400;
  color: var(--text-muted);
}

.cot-input,
.cot-field input,
.cot-field textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 0;
  font: inherit;
  font-size: 16px;
  background: transparent;
  color: var(--text);
  transition: border-color var(--transition);
}

.cot-input::placeholder,
.cot-field input::placeholder,
.cot-field textarea::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.cot-input:focus,
.cot-field input:focus,
.cot-field textarea:focus {
  outline: none;
  border-bottom-color: var(--accent);
}

.cot-input--readonly,
.cot-field input[readonly] {
  color: var(--silver);
  cursor: default;
}

.cot-field textarea {
  resize: vertical;
  min-height: 64px;
}

.cot-field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.4rem;
  color: var(--text-muted);
}

.items-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.cot-item {
  border: 1px solid var(--border);
  padding: 1.15rem;
  background: var(--bg-section);
  transition: border-color var(--transition);
}

.cot-item:hover {
  border-color: rgba(184, 115, 51, 0.4);
}

.cot-item__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.85rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--border);
}

.cot-item__num {
  font-size: 14px;
  color: var(--text-muted);
}

.cot-item__num strong {
  color: var(--accent);
  font-size: 18px;
  font-family: var(--font-heading);
}

.cot-item__remove {
  background: transparent;
  border: 1px solid var(--border);
  width: 34px;
  height: 34px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 14px;
  transition: all var(--transition);
}

.cot-item__remove:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-dark);
}

.cot-item__grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .cot-item__grid {
    grid-template-columns: 100px 1fr 150px 150px;
    align-items: start;
  }

  .cot-field--sm { grid-column: 1; }
  .cot-field--grow { grid-column: 2 / -1; }
}

@media (min-width: 768px) {
  .cot-item__grid {
    grid-template-columns: 90px 1fr 160px 160px;
  }

  .cot-field--grow { grid-column: 2; }
}

.cot-totals {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cot-totals__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.35rem 0;
}

.cot-totals__row span {
  font-weight: 600;
  font-size: 15px;
  color: var(--silver);
}

.cot-totals__row input {
  max-width: 220px;
  text-align: right;
  font-weight: 600;
  border-bottom: none;
}

.cot-totals__row--total {
  margin-top: 0.5rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
}

.cot-totals__row--total span,
.cot-totals__row--total input {
  font-size: 1.2rem;
  color: var(--accent);
}

.cot-btn-add {
  width: 100%;
  margin-top: 0.25rem;
}

.btn--download {
  width: 100%;
  min-height: 54px;
  font-size: 17px;
  margin-top: 0.5rem;
}

.cot-footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
  padding: 1.25rem 0;
  text-align: center;
}

.cot-footer p {
  font-size: 14px;
  color: var(--text-muted);
}

.cot-toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--accent);
  padding: 0.85rem 1.5rem;
  font-size: 14px;
  z-index: 1000;
  transition: transform 0.3s ease;
  max-width: calc(100% - 2rem);
  text-align: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.cot-toast--visible {
  transform: translateX(-50%) translateY(0);
}

.cot-toast--error {
  border-color: #cf2e2e;
  color: #ffb4b4;
}