/* ==========================================================================
   Calculadora de ITP de vivienda en España - Estilos canónicos
   ========================================================================== */

:root,
[data-theme="dark"] {
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --bg-app: #080c14;
  --bg-card: #111827;
  --bg-card-elevated: #172033;
  --bg-input: #0b1220;
  --border-color: rgba(255, 255, 255, 0.1);
  --border-focus: #38bdf8;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #38bdf8;
  --primary-color: #38bdf8;
  --primary-light: rgba(56, 189, 248, 0.14);
  --primary-glow: rgba(56, 189, 248, 0.25);
  --accent: #f59e0b;
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.12);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.12);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-card: 0 12px 28px -8px rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}

[data-theme="light"] {
  --bg-app: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-elevated: #f8fafc;
  --bg-input: #ffffff;
  --border-color: #cbd5e1;
  --border-focus: #0284c7;
  --text-main: #0f172a;
  --text-muted: #475569;
  --primary: #0284c7;
  --primary-color: #0284c7;
  --primary-light: rgba(2, 132, 199, 0.1);
  --primary-glow: rgba(2, 132, 199, 0.18);
  --accent: #d97706;
  --success: #059669;
  --success-bg: rgba(5, 150, 105, 0.1);
  --warning: #d97706;
  --warning-bg: rgba(217, 119, 6, 0.1);
  --danger: #dc2626;
  --danger-bg: rgba(220, 38, 38, 0.1);
  --shadow-card: 0 8px 24px -6px rgba(15, 23, 42, 0.08);
  color-scheme: light;
}

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

body {
  margin: 0;
  font-family: var(--font-main);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6,
.brand-title {
  font-family: var(--font-heading);
}

.mono,
code {
  font-family: var(--font-mono);
}

.hidden {
  display: none !important;
}

.tool-layout {
  margin-top: 1.25rem;
  margin-bottom: 3rem;
  flex: 1 0 auto;
}

/* Hero */
.itp-hero {
  margin-bottom: 1.5rem;
}

.itp-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: var(--primary-light);
  border: 1px solid rgba(56, 189, 248, 0.28);
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

[data-theme="light"] .itp-hero-badge {
  border-color: rgba(2, 132, 199, 0.28);
}

.itp-hero h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.15rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0 0 0.55rem;
  color: var(--text-main);
}

.itp-hero p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 820px;
}

/* Presets rápidos */
.itp-presets-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.itp-presets-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-right: 0.25rem;
}

.itp-preset-btn {
  min-height: 36px;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s, color 0.2s;
}

.itp-preset-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

/* Tarjeta principal calculadora */
.itp-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: clamp(1.1rem, 2.5vw, 1.75rem);
  margin-bottom: 1.75rem;
}

.itp-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
  .itp-form-grid {
    grid-template-columns: 1fr;
  }
}

.itp-field-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-width: 0;
}

.itp-field-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.itp-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
}

.itp-help-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: transparent;
  border: none;
  padding: 0.15rem 0.35rem;
  border-radius: 6px;
  color: var(--primary);
  font-family: var(--font-main);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
}

.itp-help-btn:hover {
  background: var(--primary-light);
}

.itp-input-wrap {
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  min-height: 44px;
  padding: 0 0.75rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.itp-input-wrap:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.itp-input {
  flex: 1 1 0%;
  width: 0;
  min-width: 0;
  border: none;
  background: transparent;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  min-height: 42px;
  outline: none;
}

.itp-input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
  font-family: var(--font-main);
  font-size: 0.9rem;
}

.itp-unit {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-muted);
  margin-left: 0.5rem;
  flex-shrink: 0;
}

.itp-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: 0.55rem 40px 0.55rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--bg-input);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.itp-select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.itp-select option {
  background-color: var(--bg-card);
  color: var(--text-main);
}

.itp-field-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Dashboard de resultados */
.itp-kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

@media (max-width: 860px) {
  .itp-kpi-grid {
    grid-template-columns: 1fr;
  }
}

.itp-kpi-box {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.itp-kpi-box.is-primary {
  border-color: rgba(56, 189, 248, 0.4);
  background: linear-gradient(145deg, rgba(56, 189, 248, 0.12), var(--bg-card-elevated));
}

[data-theme="light"] .itp-kpi-box.is-primary {
  border-color: rgba(2, 132, 199, 0.35);
  background: linear-gradient(145deg, rgba(2, 132, 199, 0.08), var(--bg-card-elevated));
}

.itp-kpi-box.is-savings {
  border-color: rgba(16, 185, 129, 0.38);
  background: linear-gradient(145deg, var(--success-bg), var(--bg-card-elevated));
}

.itp-kpi-box.is-savings.is-neutral {
  border-color: var(--border-color);
  background: var(--bg-card-elevated);
}

.itp-kpi-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.itp-kpi-value {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
}

.itp-kpi-box.is-primary .itp-kpi-value {
  color: var(--primary);
}

.itp-kpi-box.is-savings:not(.is-neutral) .itp-kpi-value {
  color: var(--success);
}

.itp-kpi-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Banda régimen aplicado + alertas */
.itp-regime-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  border: 1px solid rgba(56, 189, 248, 0.25);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

[data-theme="light"] .itp-regime-banner {
  border-color: rgba(2, 132, 199, 0.25);
}

.itp-alert-box {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  font-size: 0.88rem;
  line-height: 1.5;
}

.itp-alert-box svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.itp-alert-warning {
  background: var(--warning-bg);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: var(--text-main);
}

.itp-alert-warning svg {
  color: var(--warning);
}

.itp-alert-danger {
  background: var(--danger-bg);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: var(--text-main);
}

.itp-alert-danger svg {
  color: var(--danger);
}

/* Desglose por tramos */
.itp-section-subtitle {
  font-size: 1rem;
  font-weight: 700;
  margin: 1.25rem 0 0.75rem;
  color: var(--text-main);
}

.itp-table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
}

.itp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.itp-table th,
.itp-table td {
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.itp-table thead th {
  background: var(--bg-card-elevated);
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.itp-table tbody tr:last-child td {
  border-bottom: none;
}

.itp-table .text-right {
  text-align: right;
}

.itp-table .fw-bold {
  font-weight: 700;
}

.itp-table .row-bonus td {
  color: var(--success);
}

.itp-table .empty-row {
  text-align: center;
  color: var(--text-muted);
  padding: 1.25rem;
}

/* Requisitos y Modelo 600 */
.itp-meta-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1rem;
  margin-top: 1.25rem;
}

@media (max-width: 768px) {
  .itp-meta-grid {
    grid-template-columns: 1fr;
  }
}

.itp-meta-card {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.15rem;
}

.itp-meta-card h4 {
  margin: 0 0 0.6rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

.itp-req-list {
  margin: 0;
  padding-left: 1.2rem;
  font-size: 0.87rem;
  color: var(--text-muted);
}

.itp-req-list li {
  margin-bottom: 0.35rem;
}

.itp-modelo-row {
  margin-bottom: 0.6rem;
  font-size: 0.87rem;
}

.itp-modelo-row strong {
  display: block;
  color: var(--text-main);
  font-size: 0.8rem;
}

.itp-modelo-row span {
  color: var(--text-muted);
}

/* Acciones inferiores de la tarjeta */
.itp-actions-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border-color);
}

.itp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 42px;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, border-color 0.2s, background-color 0.2s;
}

.itp-btn:active {
  transform: translateY(1px);
}

.itp-btn-primary {
  background: var(--primary);
  border: 1px solid var(--primary);
  color: #08121f;
}

[data-theme="light"] .itp-btn-primary {
  color: #ffffff;
}

.itp-btn-secondary {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.itp-btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

@media (max-width: 640px) {
  .itp-actions-bar .itp-btn {
    width: 100%;
  }
}

/* Comparativa entre CCAA */
.itp-comparison-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: clamp(1.1rem, 2.5vw, 1.5rem);
  margin-bottom: 2rem;
}

.itp-comparison-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
  font-weight: 700;
}

.itp-comparison-desc {
  margin: 0 0 1rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.itp-table tr.is-current-ccaa td {
  background: var(--primary-light);
}

.ccaa-current-pill {
  display: inline-block;
  margin-left: 0.4rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  background: var(--primary);
  color: #08121f;
}

[data-theme="light"] .ccaa-current-pill {
  color: #ffffff;
}

.ccaa-regime-cell {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* Modal accesible */
.itp-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.72);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 1200;
}

.itp-modal-overlay.is-open {
  display: flex;
}

.itp-modal {
  width: 100%;
  max-width: 560px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
  overflow: hidden;
}

.itp-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.itp-modal-header h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.itp-modal-close {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-input);
  color: var(--text-main);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}

.itp-modal-body {
  padding: 1.15rem 1.25rem;
  font-size: 0.92rem;
  color: var(--text-muted);
  max-height: 65vh;
  overflow-y: auto;
}

.itp-modal-body p {
  margin: 0 0 0.75rem;
  color: var(--text-main);
}

.modal-list {
  margin: 0;
  padding-left: 1.2rem;
}

.modal-list li {
  margin-bottom: 0.45rem;
}

.modal-summary-pre {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-main);
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}

.itp-modal-footer {
  display: flex;
  justify-content: flex-end;
  padding: 0.85rem 1.25rem;
  border-top: 1px solid var(--border-color);
}

/* Impresión limpia */
@media print {
  .app-header,
  .tools-ad-banner-section,
  .tool-ad-sidebar,
  .itp-presets-bar,
  .itp-actions-bar,
  .itp-comparison-card,
  .seo-guide-section,
  .related-tools-section,
  .fijate-footer,
  .tool-breadcrumbs {
    display: none !important;
  }

  body,
  .itp-card,
  .itp-kpi-box,
  .itp-meta-card {
    background: #ffffff !important;
    color: #000000 !important;
    border-color: #cbd5e1 !important;
    box-shadow: none !important;
  }
}