/* ==========================================================================
   IKALTEK - PLATAFORMA INTEGRAL DE INGENIERÍA Y CONSTRUCCIÓN
   Paleta Oficial de Colores:
   - Azul Marino Letras Logo: #152F5C
   - Fondo Logo: #FFFFFF
   - Negro: #121212
   - Naranja: #FF6B00
   - Gris Oscuro: #C9CED6
   - Gris Claro: #F1F5F6
   - Verde: #0BDA51
   - Rojo: #FF5522
   ========================================================================== */

:root {
  --ikaltek-navy: #152F5C;
  --ikaltek-navy-dark: #0d1e3c;
  --ikaltek-navy-light: #21437d;
  --ikaltek-white: #FFFFFF;
  --ikaltek-black: #121212;
  --ikaltek-orange: #FF6B00;
  --ikaltek-orange-hover: #e05e00;
  --ikaltek-gray-dark: #C9CED6;
  --ikaltek-gray-light: #F1F5F6;
  --ikaltek-gray-subtle: #fafbfb;
  --ikaltek-green: #0BDA51;
  --ikaltek-green-bg: #e6fbf0;
  --ikaltek-red: #FF5522;
  --ikaltek-red-bg: #ffeee9;

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --shadow-sm: 0 2px 4px rgba(21, 47, 92, 0.06);
  --shadow-md: 0 4px 12px rgba(21, 47, 92, 0.1);
  --shadow-lg: 0 10px 25px rgba(21, 47, 92, 0.14);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: all 0.25s ease-in-out;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--ikaltek-gray-light);
  color: var(--ikaltek-black);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------------- HEADER & BRANDING ---------------- */
.header-top {
  background-color: var(--ikaltek-white);
  border-bottom: 2px solid var(--ikaltek-gray-dark);
  padding: 12px 24px;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
}

.brand-logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  display: block;
}

.brand-tagline {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ikaltek-navy);
  border-left: 2px solid var(--ikaltek-orange);
  padding-left: 12px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.badge-mexico {
  background-color: var(--ikaltek-gray-light);
  color: var(--ikaltek-navy);
  border: 1px solid var(--ikaltek-gray-dark);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.badge-mexico::before {
  content: "🇲🇽";
  font-size: 1rem;
}

.btn-test-runner {
  background-color: transparent;
  border: 1.5px solid var(--ikaltek-navy);
  color: var(--ikaltek-navy);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-test-runner:hover {
  background-color: var(--ikaltek-navy);
  color: var(--ikaltek-white);
}

/* ---------------- HERO & CENTRAL DROPDOWN ---------------- */
.hero-section {
  background: linear-gradient(135deg, var(--ikaltek-navy) 0%, var(--ikaltek-navy-dark) 100%);
  color: var(--ikaltek-white);
  padding: 40px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 107, 0, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  max-width: 860px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.hero-title span {
  color: var(--ikaltek-orange);
}

.hero-subtitle {
  font-size: 1rem;
  color: var(--ikaltek-gray-dark);
  margin-bottom: 28px;
}

/* Central Dropdown Box */
.dropdown-card {
  background-color: var(--ikaltek-white);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  color: var(--ikaltek-black);
  max-width: 720px;
  margin: 0 auto;
  border: 2px solid rgba(255, 107, 0, 0.25);
  text-align: left;
}

.dropdown-card-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--ikaltek-navy);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.dropdown-card-label .count-badge {
  background-color: var(--ikaltek-orange);
  color: var(--ikaltek-white);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 12px;
}

.central-dropdown {
  width: 100%;
  padding: 14px 18px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ikaltek-navy);
  background-color: var(--ikaltek-gray-light);
  border: 2px solid var(--ikaltek-gray-dark);
  border-radius: var(--radius-md);
  outline: none;
  cursor: pointer;
  transition: var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23152F5C%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.4-12.8z%22%2F%3E%3C%2Fsvg%3E");
  background-repeat: no-repeat;
  background-position: right 16px top 50%;
  background-size: 14px auto;
  padding-right: 42px;
}

.central-dropdown:hover {
  border-color: var(--ikaltek-navy);
}

.central-dropdown:focus {
  border-color: var(--ikaltek-orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.2);
  background-color: var(--ikaltek-white);
}

.dropdown-helper {
  font-size: 0.78rem;
  color: #64748b;
  margin-top: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dropdown-helper span strong {
  color: var(--ikaltek-navy);
}

/* ---------------- NAVIGATION TABS (VIEW SWITCHER) ---------------- */
.view-nav-wrapper {
  background-color: var(--ikaltek-white);
  border-bottom: 2px solid var(--ikaltek-gray-dark);
}

.view-nav {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 8px;
}

.view-nav-tab {
  background: none;
  border: none;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 16px 24px;
  color: #64748b;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 3px solid transparent;
  transition: var(--transition);
}

.view-nav-tab:hover {
  color: var(--ikaltek-navy);
}

.view-nav-tab.active {
  color: var(--ikaltek-navy);
  border-bottom-color: var(--ikaltek-orange);
}

.pill-count {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 800;
}

.pill-count-web {
  background-color: var(--ikaltek-orange);
  color: var(--ikaltek-white);
}

.pill-count-plantilla {
  background-color: var(--ikaltek-green);
  color: var(--ikaltek-white);
}

/* ---------------- MAIN CONTAINER & VIEWS ---------------- */
.main-content {
  max-width: 1280px;
  margin: 28px auto 60px;
  padding: 0 24px;
  width: 100%;
  flex: 1;
}

.view-section {
  display: none;
}

.view-section.active {
  display: block;
}

/* Section Header */
.section-header {
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 12px;
  border-bottom: 2px solid var(--ikaltek-gray-dark);
  padding-bottom: 12px;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--ikaltek-navy);
}

.section-desc {
  font-size: 0.9rem;
  color: #475569;
  margin-top: 4px;
}

/* ---------------- WEB VIEW: CALCULATOR SUB-TABS ---------------- */
.calc-selector-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 12px;
  margin-bottom: 20px;
  scrollbar-width: thin;
}

.calc-btn {
  background-color: var(--ikaltek-white);
  border: 1.5px solid var(--ikaltek-gray-dark);
  color: var(--ikaltek-navy);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.calc-btn:hover {
  border-color: var(--ikaltek-orange);
  background-color: #fff9f5;
}

.calc-btn.active {
  background-color: var(--ikaltek-navy);
  color: var(--ikaltek-white);
  border-color: var(--ikaltek-navy);
  box-shadow: var(--shadow-sm);
}

.calc-card-container {
  display: none;
}

.calc-card-container.active {
  display: block;
  animation: fadeIn 0.25s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Two-column Calculator Grid (Inputs & Results) */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

@media (max-width: 900px) {
  .calc-grid {
    grid-template-columns: 1fr;
  }
}

.card-panel {
  background-color: var(--ikaltek-white);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--ikaltek-gray-dark);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.panel-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--ikaltek-navy);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--ikaltek-gray-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-title .norm-tag {
  font-size: 0.72rem;
  font-weight: 700;
  background-color: var(--ikaltek-gray-light);
  color: var(--ikaltek-navy);
  padding: 4px 8px;
  border-radius: 4px;
}

/* Form Styles */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.83rem;
  font-weight: 700;
  color: var(--ikaltek-navy);
  margin-bottom: 5px;
}

.form-label small {
  font-weight: normal;
  color: #64748b;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: 0.95rem;
  border: 1.5px solid var(--ikaltek-gray-dark);
  border-radius: var(--radius-sm);
  background-color: var(--ikaltek-gray-subtle);
  color: var(--ikaltek-black);
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--ikaltek-orange);
  background-color: var(--ikaltek-white);
  box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.15);
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}

.btn-calculate {
  width: 100%;
  padding: 12px;
  background-color: var(--ikaltek-orange);
  color: var(--ikaltek-white);
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
}

.btn-calculate:hover {
  background-color: var(--ikaltek-orange-hover);
}

/* Results Display */
.result-hero {
  background: linear-gradient(135deg, var(--ikaltek-navy) 0%, var(--ikaltek-navy-dark) 100%);
  color: var(--ikaltek-white);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 20px;
  text-align: center;
}

.result-hero-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--ikaltek-gray-dark);
  font-weight: 600;
}

.result-hero-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--ikaltek-orange);
  margin: 6px 0;
}

.result-hero-sub {
  font-size: 0.9rem;
  color: #e2e8f0;
}

.metrics-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin-bottom: 16px;
}

.metrics-table th, .metrics-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--ikaltek-gray-dark);
  text-align: left;
}

.metrics-table th {
  background-color: var(--ikaltek-gray-light);
  color: var(--ikaltek-navy);
  font-weight: 700;
}

.metrics-table tr:hover td {
  background-color: #f8fafc;
}

.metrics-table td.val-bold {
  font-weight: 700;
  text-align: right;
  color: var(--ikaltek-navy);
}

.formula-info-box {
  background-color: var(--ikaltek-gray-light);
  border-left: 4px solid var(--ikaltek-navy);
  padding: 12px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.82rem;
  color: #334155;
  margin-top: 16px;
}

.formula-info-box strong {
  color: var(--ikaltek-navy);
}

/* ---------------- PLANTILLA VIEW: TEMPLATE CARDS ---------------- */
.plantillas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}

@media (max-width: 640px) {
  .plantillas-grid {
    grid-template-columns: 1fr;
  }
}

.plantilla-card {
  background-color: var(--ikaltek-white);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--ikaltek-gray-dark);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
}

.plantilla-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--ikaltek-navy);
}

.plantilla-card.highlighted {
  border: 2.5px solid var(--ikaltek-orange);
  box-shadow: 0 0 16px rgba(255, 107, 0, 0.35);
  animation: pulseCard 1.5s ease-in-out;
}

@keyframes pulseCard {
  0% { transform: scale(1); }
  50% { transform: scale(1.02); }
  100% { transform: scale(1); }
}

.card-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.badge-plantilla {
  background-color: var(--ikaltek-green-bg);
  color: #056925;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 12px;
  letter-spacing: 0.5px;
  border: 1px solid rgba(11, 218, 81, 0.3);
}

.badge-format {
  background-color: var(--ikaltek-gray-light);
  color: var(--ikaltek-navy);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--ikaltek-gray-dark);
}

.plantilla-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--ikaltek-navy);
  margin-bottom: 8px;
  line-height: 1.35;
}

.plantilla-category {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ikaltek-orange);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.plantilla-standard {
  font-size: 0.78rem;
  color: #64748b;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.plantilla-desc {
  font-size: 0.88rem;
  color: #334155;
  margin-bottom: 16px;
  flex: 1;
}

.plantilla-features {
  list-style: none;
  margin-bottom: 20px;
  background-color: var(--ikaltek-gray-subtle);
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid #e2e8f0;
}

.plantilla-features li {
  font-size: 0.8rem;
  color: #475569;
  margin-bottom: 6px;
  display: flex;
  align-items: flex-start;
  gap: 6px;
}

.plantilla-features li::before {
  content: "✔";
  color: var(--ikaltek-green);
  font-weight: 800;
}

.card-actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
}

.btn-dummy-download {
  flex: 1;
  background-color: var(--ikaltek-navy);
  color: var(--ikaltek-white);
  border: none;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition);
}

.btn-dummy-download:hover {
  background-color: var(--ikaltek-orange);
}

.btn-dummy-alt {
  background-color: transparent;
  color: var(--ikaltek-navy);
  border: 1.5px solid var(--ikaltek-gray-dark);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-dummy-alt:hover {
  border-color: var(--ikaltek-navy);
  background-color: var(--ikaltek-gray-light);
}

/* ---------------- TOAST NOTIFICATION ---------------- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  max-width: 400px;
}

.toast {
  background-color: var(--ikaltek-navy);
  color: var(--ikaltek-white);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border-left: 5px solid var(--ikaltek-green);
  margin-top: 10px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.toast-title {
  font-size: 0.9rem;
  font-weight: 800;
  margin-bottom: 2px;
}

.toast-body {
  font-size: 0.8rem;
  color: var(--ikaltek-gray-dark);
}

/* ---------------- FOOTER ---------------- */
.footer {
  background-color: var(--ikaltek-navy-dark);
  color: var(--ikaltek-gray-dark);
  border-top: 3px solid var(--ikaltek-orange);
  padding: 32px 24px;
  margin-top: auto;
  font-size: 0.85rem;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  font-weight: 700;
  color: var(--ikaltek-white);
}

.footer-palette-chips {
  display: flex;
  gap: 6px;
  align-items: center;
}

.color-chip {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.4);
}

/* ---------------- MODAL FOR TEST RUNNER ---------------- */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(18, 18, 18, 0.65);
  backdrop-filter: blur(3px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.active {
  display: flex;
}

.modal-box {
  background-color: var(--ikaltek-white);
  border-radius: var(--radius-lg);
  max-width: 800px;
  width: 100%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-header {
  padding: 16px 24px;
  background-color: var(--ikaltek-navy);
  color: var(--ikaltek-white);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 1.15rem;
  font-weight: 800;
}

.modal-close {
  background: none;
  border: none;
  color: var(--ikaltek-white);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-body {
  padding: 20px 24px;
  overflow-y: auto;
  font-size: 0.9rem;
}

.test-summary-card {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.test-summary-pass {
  background-color: var(--ikaltek-green-bg);
  color: #03541d;
  border: 1.5px solid var(--ikaltek-green);
}

.test-log-list {
  list-style: none;
  font-family: monospace;
  font-size: 0.82rem;
  background-color: #0f172a;
  color: #e2e8f0;
  padding: 14px;
  border-radius: var(--radius-sm);
  max-height: 340px;
  overflow-y: auto;
}

.test-log-list li {
  margin-bottom: 4px;
}

.test-pass {
  color: var(--ikaltek-green);
}

.test-fail {
  color: var(--ikaltek-red);
}