/* ===================================================================
   VARIABLES DE MARCA
   Ajusta aquí colores, fuentes y espaciados para todo el sitio
   =================================================================== */
:root {
  --primary-main: #0077C5;
  --primary-light: #BEE5FF;
  --primary-dark: #004673;
  --primary-400: #6AC4FF;
  --primary-lighter-opacity: rgba(0, 119, 197, 0.08);
  --primary-light-opacity: rgba(0, 119, 197, 0.16);

  --info-main: #48B5E3;
  --info-light: #CAEFFF;
  --info-100: #EFFAFF;

  --success-main: #97D423;
  --success-light: #E8F6CD;
  --success-dark: #3C550E;

  --error-main: #FF373B;
  --error-light: #FFBEBF;

  --text-primary: #434141;
  --text-secondary: #6C6C6C;

  --bg-default: #FFFFFF;
  --bg-body: #F7F7F9;
  --bg-paper: #FFFFFF;

  --border-input: rgba(38, 43, 67, 0.22);
  --border-divider: rgba(38, 43, 67, 0.12);

  --shadow-card: 0px 2px 16px 4px rgba(45, 64, 64, 0.10);
  --shadow-card-sm: 0px 2px 16px 0px rgba(45, 64, 64, 0.10);

  --sidebar-width: 200px;
  --content-max-width: 1440px;

  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 24px;

  --font-body: 'Nunito Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ===================================================================
   RESET
   =================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.47;
  color: var(--text-primary);
  background-color: var(--bg-body);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img { max-width: 100%; height: auto; }

/* ===================================================================
   LAYOUT
   =================================================================== */
.app {
  display: flex;
  min-height: 100vh;
}

/* ===================================================================
   SIDEBAR
   =================================================================== */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background-color: var(--primary-dark);
  color: rgba(255, 255, 255, 0.85);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-logo {
  padding: 12px 16px 8px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.sidebar-logo a { display: flex; }

.logo-img {
  width: 110px;
  height: auto;
  display: block;
}

.sidebar-nav {
  padding: 4px 12px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  color: var(--primary-400);
  font-size: 12px;
  font-weight: 400;
  transition: all 0.2s ease;
  text-decoration: none;
  cursor: pointer;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  line-height: 1.33;
}

.sidebar-item svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.sidebar-item:hover {
  background-color: var(--info-main);
  color: var(--primary-dark);
  font-weight: 500;
  font-size: 12px;
}

.sidebar-item.active {
  background-color: var(--info-main);
  color: var(--primary-dark);
  font-weight: 500;
  font-size: 12px;
  height: 48px;
  box-shadow: 0px 2px 6px rgba(0, 119, 197, 0.14);
}

.sidebar-close {
  display: none;
  position: absolute;
  top: 16px;
  right: 16px;
  background: transparent;
  border: none;
  color: white;
  padding: 8px;
  border-radius: 50%;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
}

/* ===================================================================
   HEADER MÓVIL
   =================================================================== */
.mobile-header {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: white;
  border-bottom: 1px solid var(--border-divider);
  position: sticky;
  top: 0;
  z-index: 50;
}

.hamburger {
  background: transparent;
  border: none;
  padding: 8px;
  border-radius: 8px;
  color: var(--text-primary);
  display: flex;
}

.hamburger:hover { background-color: var(--primary-lighter-opacity); }

.logo-img-mobile {
  width: 80px;
  height: auto;
  display: block;
}

/* ===================================================================
   CONTENIDO PRINCIPAL
   =================================================================== */
.main {
  flex: 1;
  min-width: 0;
  background: var(--bg-default);
}

/* Top bar - navbar blanca superior (como el original) */
.top-bar {
  min-height: 64px;
  background-color: white;
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  flex-shrink: 0;
}

.content {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 16px 80px 60px;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
  font-size: 13px;
  color: var(--text-secondary);
}

.breadcrumb a {
  color: var(--primary-main);
  font-weight: 500;
}

.breadcrumb a:hover { text-decoration: underline; }

.breadcrumb-sep {
  color: var(--primary-main);
  font-size: 16px;
}

/* Sección título + subtítulo */
.page-header {
  margin-bottom: 32px;
}

.page-title {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0 0 8px;
  line-height: 2;
}

.page-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin: 0;
  max-width: 600px;
  line-height: 1.56;
  font-weight: 400;
}

/* ===================================================================
   PAGE BODY - contenedor reordenable en móvil
   =================================================================== */
.page-body {
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* ===================================================================
   QUICK LINKS
   =================================================================== */
.quick-links-card {
  background: var(--bg-paper);
  border-radius: var(--radius-xl);
  padding: 24px 32px;
  box-shadow: var(--shadow-card-sm);
  margin-bottom: 24px;
}

.quick-links-title {
  color: var(--primary-main);
  font-size: 16px;
  font-weight: 400;
  margin: 0 0 20px;
}

.quick-links-title a {
  color: var(--primary-main);
  text-decoration: underline;
}

.quick-links-row {
  display: flex;
  align-items: center;
  gap: 0;
}

.quick-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  line-height: 1.47;
  color: var(--text-primary);
  flex: 1;
  padding: 4px 20px;
}

.quick-link:first-child { padding-left: 0; }
.quick-link:last-child { padding-right: 0; }

.quick-link-icon {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  color: var(--primary-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
}

.quick-link-icon svg { width: 30px; height: 30px; }

.quick-link-divider {
  width: 0;
  height: 48px;
  border: none;
  border-right: 2px solid var(--primary-light);
  margin: 0;
  flex-shrink: 0;
  align-self: center;
}

/* ===================================================================
   CARDS GRID
   =================================================================== */
.cards-grid {
  display: grid;
  grid-template-columns: minmax(320px, 400px) 1fr;
  gap: 20px;
  align-items: start;
}

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

.form-card {
  background: var(--bg-paper);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-card);
}

.form-title {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0 0 20px;
  line-height: 1.56;
}

/* ===================================================================
   FORM INPUTS
   =================================================================== */
.form-group {
  position: relative;
  margin-bottom: 16px;
}

.form-input,
.form-select {
  width: 100%;
  padding: 16px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text-primary);
  background: transparent;
  border: 1px solid var(--border-input);
  border-radius: var(--radius-lg);
  outline: none;
  transition: border-color 0.2s ease;
  appearance: none;
  -webkit-appearance: none;
}

.form-input:hover,
.form-select:hover {
  border-color: var(--text-primary);
}

.form-input:focus,
.form-select:focus {
  border-color: var(--primary-main);
  border-width: 2px;
  padding: 15px;
}

.form-input.error { border-color: var(--error-main); }

.form-label {
  position: absolute;
  top: -8px;
  left: 12px;
  padding: 0 6px;
  background: var(--bg-paper);
  font-size: 12px;
  color: var(--text-secondary);
  pointer-events: none;
  z-index: 1;
}

.form-input:focus ~ .form-label,
.form-select:focus ~ .form-label {
  color: var(--primary-main);
}

.form-input.error ~ .form-label { color: var(--error-main); }

.error-msg {
  color: var(--error-main);
  font-size: 12px;
  margin-top: 6px;
  padding-left: 16px;
}

/* Select dropdown */
.select-wrapper { position: relative; cursor: pointer; }

.select-wrapper::after {
  content: '';
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-70%) rotate(45deg);
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--text-secondary);
  border-bottom: 2px solid var(--text-secondary);
  pointer-events: none;
  transition: transform 0.2s ease;
}

.select-wrapper.open::after {
  transform: translateY(-30%) rotate(-135deg);
}

.dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: 0px 4px 20px rgba(45, 64, 64, 0.15);
  overflow: hidden;
  z-index: 10;
  display: none;
}

.dropdown.open { display: block; }

.dropdown-item {
  padding: 14px 20px;
  font-size: 15px;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.15s;
}

.dropdown-item:hover { background: var(--info-100); }

.dropdown-item.selected {
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 600;
}

/* Help link */
.help-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 4px 0 20px;
  color: var(--primary-main);
  font-size: 13px;
}

.help-link:hover { text-decoration: underline; }

.help-icon {
  width: 18px;
  height: 18px;
  background: var(--primary-main);
  color: white;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  font-style: italic;
  font-family: serif;
}

/* Form actions */
.form-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 8px;
}

/* Botón principal (outlined) */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  min-width: 169px;
  padding: 12px 24px;
  background: transparent;
  color: var(--primary-main);
  border: 1px solid var(--primary-main);
  border-radius: var(--radius-lg);
  font-size: 16px;
  font-weight: 600;
  transition: background 0.2s;
  position: relative;
}

.btn-primary:hover:not(:disabled) { background: var(--primary-lighter-opacity); }
.btn-primary:disabled { cursor: not-allowed; opacity: 0.6; }
.btn-primary.loading .btn-text { visibility: hidden; }

.spinner {
  position: absolute;
  width: 24px;
  height: 24px;
  border: 3px solid var(--primary-lighter-opacity);
  border-top-color: var(--primary-main);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: none;
}

.btn-primary.loading .spinner { display: block; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ===================================================================
   RESULT CARD
   =================================================================== */
.result-card {
  background: var(--bg-paper);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-card-sm);
  min-height: 300px;
  display: flex;
  flex-direction: column;
}

/* Estado inicial */
.result-initial {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
  flex: 1;
}

.result-initial-text {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 24px;
  max-width: 400px;
}

/* Estado exitoso */
.result-success {
  display: none;
  flex-direction: column;
  gap: 20px;
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.result-title {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0;
}

.status-badge {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.status-badge.paid { background: var(--success-light); color: var(--success-dark); }
.status-badge.pending { background: var(--error-main); color: white; }

.result-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr) auto;
  gap: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-divider);
}

.result-info-item { display: flex; flex-direction: column; gap: 4px; }
.result-info-label { font-size: 13px; color: var(--text-secondary); }
.result-info-value { font-size: 17px; color: var(--text-primary); font-weight: 600; }

.result-total { text-align: right; }
.result-total-label { font-size: 13px; color: var(--text-secondary); margin-bottom: 4px; }
.result-total-value { font-size: 32px; font-weight: 700; color: var(--text-primary); line-height: 1; }

.result-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.result-last-payment { display: flex; flex-direction: column; gap: 4px; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border: 1px solid var(--primary-main);
  border-radius: var(--radius-lg);
  color: var(--primary-main);
  background: transparent;
  font-size: 15px;
  font-weight: 600;
  transition: background 0.2s;
}

.btn-secondary:hover { background: var(--primary-lighter-opacity); }

/* Success message */
.success-message {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--success-light);
  border-radius: var(--radius-lg);
  color: var(--success-dark);
  font-size: 15px;
  font-weight: 500;
}

.success-message-icon {
  width: 24px;
  height: 24px;
  background: var(--success-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

/* ===================================================================
   PAYMENT CARD (separate card, appears when there's debt)
   =================================================================== */
.payment-card {
  background: var(--bg-paper);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-card-sm);
  display: none;
}

.payment-card.visible { display: block; }

.payment-form-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 24px;
}

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

.payment-form-grid .form-group.full { grid-column: 1 / -1; }
.payment-form-grid .form-group { margin-bottom: 0; }

/* Floating labels (labels inside the input, float up on focus/filled) */
.form-group.floating {
  position: relative;
}

.form-group.floating .form-input {
  padding: 20px 16px 8px;
  font-size: 15px;
}

.form-group.floating .form-input:focus {
  padding: 19px 15px 7px;
}

.form-label-float {
  position: absolute;
  top: 50%;
  left: 16px;
  transform: translateY(-50%);
  font-size: 15px;
  color: var(--text-secondary);
  pointer-events: none;
  transition: all 0.2s ease;
  background: transparent;
  padding: 0;
  z-index: 1;
}

/* Float up when focused or has content */
.form-group.floating .form-input:focus ~ .form-label-float,
.form-group.floating .form-input:not(:placeholder-shown) ~ .form-label-float,
.form-group.floating .form-select:focus ~ .form-label-float,
.form-group.floating .form-select:valid ~ .form-label-float {
  top: -8px;
  left: 12px;
  transform: translateY(0);
  font-size: 12px;
  background: var(--bg-paper);
  padding: 0 6px;
  color: var(--text-secondary);
}

.form-group.floating .form-input:focus ~ .form-label-float,
.form-group.floating .form-select:focus ~ .form-label-float {
  color: var(--primary-main);
}

.payment-form-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 24px;
}

.btn-pay {
  padding: 12px 32px;
  background: var(--primary-main);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  font-size: 16px;
  font-weight: 600;
  min-height: 48px;
  box-shadow: 0px 2px 6px rgba(0, 119, 197, 0.14);
  transition: background 0.2s;
}

.btn-pay:hover { background: var(--primary-dark); }

.payment-terms {
  margin-top: 20px;
  margin-bottom: 16px;
}

.terms-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.terms-checkbox input[type="checkbox"] {
  width: 22px;
  height: 22px;
  min-width: 22px;
  margin: 0;
  cursor: pointer;
  accent-color: var(--primary-main);
  border: 2px solid var(--text-secondary);
  border-radius: 6px;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  position: relative;
  margin-top: 2px;
}

.terms-checkbox input[type="checkbox"]:checked {
  background: var(--primary-main);
  border-color: var(--primary-main);
}

.terms-checkbox input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 6px;
  top: 2px;
  width: 6px;
  height: 12px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.terms-text {
  font-size: 15px;
  color: var(--text-primary);
  line-height: 1.47;
}

.terms-text a {
  color: var(--primary-main);
  text-decoration: underline;
}

.terms-text a:hover {
  text-decoration: none;
}

/* Estado error */
.result-error {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
  flex: 1;
}

.result-error-text {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 24px;
  max-width: 400px;
  line-height: 1.4;
}

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media (max-width: 1200px) {
  .result-info-grid { grid-template-columns: 1fr 1fr; }
  .result-total { grid-column: 1 / -1; text-align: left; }
}

@media (max-width: 900px) {
  .content { padding: 20px 32px 60px; }
  .quick-links-row { flex-wrap: wrap; }
  .quick-link-divider { display: none; }
  .quick-link { flex: 0 0 calc(50% - 10px); }
  .cards-grid { grid-template-columns: 1fr; }
  .payment-form-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .top-bar { display: none; }
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    transform: translateX(-100%);
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close { display: flex; }
  .sidebar-overlay.open { display: block; }
  .mobile-header { display: flex; }

  .content { padding: 20px 16px 60px; }
  .page-header { margin-bottom: 20px; }
  .page-title { font-size: 1.25rem; }
  .page-subtitle { font-size: 1rem; }
  .quick-links-card { padding: 20px; order: 3; margin-top: 16px; }
  .cards-grid { order: 1; }
  .quick-links-row { flex-direction: column; gap: 14px; }
  .quick-link-divider { display: none; }
  .quick-link { flex: none; }
  .form-card, .result-card { padding: 24px 20px; border-radius: 20px; }
  .payment-card { padding: 24px 20px; border-radius: 20px; }
  .payment-form-grid { grid-template-columns: 1fr; }
  .result-header { flex-direction: column; }
  .result-info-grid { grid-template-columns: 1fr; gap: 14px; }
  .result-total { text-align: left; }
  .result-footer { flex-direction: column; align-items: stretch; }
  .btn-secondary { justify-content: center; }
}