/* === uCharter — Layout CSS: Header, Secciones, Acciones === */

/* ---- Header ---- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-ocean) 100%);
  color: var(--color-white);
  border-bottom: 3px solid var(--color-sky);
  box-shadow: 0 2px 12px rgba(11, 37, 69, 0.35);
}

.app-header--checkout {
  background: linear-gradient(135deg, #0B2545 0%, #1A6645 100%);
  border-bottom-color: #2ECC71;
}

.app-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--space-sm) var(--space-md);
}

.app-header__back {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.15);
  color: var(--color-white);
  font-size: 20px;
  text-decoration: none;
  flex-shrink: 0;
  transition: background 0.15s;
}
.app-header__back:hover {
  background: rgba(255,255,255,0.25);
  text-decoration: none;
}

.app-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex: 1;
}

.app-header__logo {
  font-size: 28px;
  line-height: 1;
}

.app-header__title {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.app-header__subtitle {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.75);
  margin-top: 1px;
}

.app-header__badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.app-header__badge--checkin {
  background: var(--color-sky);
  color: var(--color-white);
}

.app-header__badge--checkout {
  background: #2ECC71;
  color: #0B2545;
}

/* ---- Form main container ---- */
.form-main {
  max-width: 860px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md) var(--space-2xl);
}

/* ---- Form sections (cards) ---- */
.form-section {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border-left: 5px solid var(--color-ocean);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-card);
}

.form-section--critical {
  border-left-color: var(--color-danger);
}

.form-section--closing {
  border-left-color: var(--color-success);
}

.form-section--signatures {
  border-left-color: var(--color-navy);
}

.form-section--header-ops {
  border-left-color: var(--color-sky);
  background: var(--color-foam);
}

.form-section__title {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-navy);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-gray-200);
}

.form-section__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-ocean);
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: 700;
  flex-shrink: 0;
}

.form-section--critical .form-section__num {
  background: var(--color-danger);
}

.form-section--closing .form-section__num {
  background: var(--color-success);
}

.form-section__badge {
  display: inline-block;
  padding: 2px var(--space-sm);
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  margin-left: auto;
}

/* ---- Header ops fields ---- */
.form-header-fields {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* ---- Retraso indicator ---- */
.retraso-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-warning-bg);
  border: 1px solid #FBBF24;
  border-radius: var(--radius-md);
  color: var(--color-warning);
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.retraso-indicator__icon { font-size: 18px; }

/* ---- Alert boxes (inside conditional blocks) ---- */
.alert-box {
  border-radius: var(--radius-md);
  padding: var(--space-md);
  font-size: var(--font-size-sm);
}

.alert-box--warning {
  background: var(--color-warning-bg);
  border: 1px solid #FBBF24;
  color: var(--color-warning);
}

.alert-box--danger {
  background: var(--color-danger-bg);
  border: 1px solid #F5A0A0;
  color: var(--color-danger);
}

/* ---- Form actions ---- */
.form-actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  padding-bottom: var(--space-2xl);
}

/* ---- Submit button ---- */
.btn-submit {
  width: 100%;
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-lg);
  font-weight: 700;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
  letter-spacing: 0.02em;
}

.btn-submit--checkin {
  background: var(--color-ocean);
  color: var(--color-white);
  border: none;
  box-shadow: 0 4px 14px rgba(27, 79, 138, 0.40);
}

.btn-submit--checkin:hover:not(:disabled) {
  background: var(--color-navy);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(11, 37, 69, 0.45);
}

.btn-submit--checkout {
  background: var(--color-success);
  color: var(--color-white);
  border: none;
  box-shadow: 0 4px 14px rgba(26, 127, 75, 0.40);
}

.btn-submit--checkout:hover:not(:disabled) {
  background: #156637;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(21, 102, 55, 0.45);
}

.btn-submit:active:not(:disabled) { transform: translateY(0); }

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ---- Validation error box ---- */
.validation-error-box {
  background: var(--color-danger-bg);
  border: 1px solid #F5A0A0;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  color: var(--color-danger);
  font-size: var(--font-size-sm);
}

.validation-error-box strong {
  display: block;
  margin-bottom: var(--space-sm);
}

.validation-error-box ul {
  list-style: disc;
  padding-left: var(--space-lg);
}

.validation-error-box li { margin-bottom: var(--space-xs); }

/* ---- Feedback banners ---- */
.feedback-banner {
  border-radius: var(--radius-md);
  padding: var(--space-md);
  font-weight: 600;
  text-align: center;
}

.feedback-banner--success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid #A3D9B7;
}

.feedback-banner--error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid #F5A0A0;
}

/* ---- Landing page header (sin botón volver) ---- */
.app-header__inner--center {
  justify-content: center;
}