/* ==========================================================================
   Cotizador HVLS Aerofans — formulario con selects
   ========================================================================== */

@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --navy: #12244f;
  --navy-dark: #0b1630;
  --navy-light: #1a3270;
  --navy-card: #16305f;
  --blue: #1e4aa8;
  --blue-hover: #173b86;
  --blue-light: #8eb8e8;
  --teal: #8eb8e8;
  --teal-dark: #1e4aa8;
  --gold: #f5a623;
  --gold-hover: #df941a;
  --text-white: #ffffff;
  --text-muted: #94a3b8;
  --text-dark: #0b1630;
  --border: rgba(255, 255, 255, 0.12);
  --border-active: #1e4aa8;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --font-main: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  color-scheme: dark;
}

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

body {
  font-family: var(--font-main);
  background: var(--navy-dark);
  color: var(--text-white);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

.is-hidden {
  display: none !important;
}

/* --- HEADER --- */
.header {
  background: var(--navy);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  z-index: 10;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}

.brand-logo-img {
  height: 44px;
  width: auto;
  display: block;
  background: #ffffff;
  border-radius: 8px;
  padding: 4px 8px;
}

.brand-tagline {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  border-left: 1px solid var(--border);
  padding-left: 12px;
}

.header-phone {
  font-size: 13px;
  font-weight: 700;
  color: var(--blue-light);
  text-decoration: none;
}

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: #25d366;
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-weight: 700;
  font-size: 13px;
  text-decoration: none;
}

.btn-whatsapp:hover {
  background: #1ebe5a;
}

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

.header-tools {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  min-width: 210px;
}

.btn-primary {
  background: var(--blue);
  color: var(--text-white);
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background 0.2s, transform 0.1s;
  box-shadow: 0 2px 8px rgba(30, 74, 168, 0.35);
}

.btn-primary:hover {
  background: var(--blue-hover);
  transform: translateY(-1px);
}

/* --- LAYOUT --- */
.main-container {
  display: grid;
  grid-template-columns: 360px 1fr;
  grid-template-areas: "side view";
  flex: 1;
  min-height: calc(100vh - 65px);
}

.sidebar { grid-area: side; }
.viewport-area { grid-area: view; }

.field-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--blue-light);
  margin: 10px 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.field-label:first-child {
  margin-top: 0;
}

.field-select,
.field-input {
  width: 100%;
  background: var(--navy-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-white);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  min-height: 44px;
  padding: 8px 10px;
  outline: none;
}

.field-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='%238eb8e8' d='M1 1l5 5 5-5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

.field-select option {
  background: #ffffff;
  color: #0b1630;
}

.field-select-sm {
  min-height: 40px;
  min-width: 0;
  width: 100%;
  font-size: 13px;
}

.field-select:focus,
.field-input:focus {
  border-color: var(--blue-light);
}

.field-input:disabled {
  opacity: 0.55;
}

.field-hint {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
  margin-top: 8px;
}

.mobile-sticky-cta {
  display: none;
}

.metric-value.highlight-blue {
  color: var(--blue-light);
}

.sidebar {
  background: var(--navy);
  border-right: 1px solid var(--border);
  padding: 18px 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel-section {
  background: var(--navy-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
}

.panel-title {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--blue-light);
  margin-bottom: 4px;
}

.dim-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}

.dim-grid .field-label {
  margin-top: 0;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.viewport-area {
  display: flex;
  flex-direction: column;
  background: var(--navy-dark);
  position: relative;
  overflow: hidden;
}

.canvas-toolbar {
  background: rgba(15, 49, 82, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 5;
}

.canvas-toolbar .field-select-sm {
  width: 150px;
  flex: 0 0 150px;
}

.btn-tool {
  background: var(--navy-card);
  border: 1px solid var(--border);
  color: var(--text-white);
  padding: 8px 14px;
  min-height: 40px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.btn-tool:hover {
  background: var(--navy-light);
  border-color: var(--blue);
}

.canvas-container {
  flex: 1;
  position: relative;
  min-height: 440px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, #0f2b48 0%, #071524 100%);
}

#cfd-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

.legal-disclaimer {
  font-size: 10px;
  color: var(--text-muted);
  line-height: 1.45;
  padding: 8px 16px 14px;
  border-top: 1px solid var(--border);
  background: var(--navy-dark);
}

.results-strip {
  background: var(--navy);
  border-top: 1px solid var(--border);
  padding: 16px 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
  z-index: 5;
}

.metric-card {
  background: var(--navy-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.metric-header {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.metric-value {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.2;
}

.metric-value.highlight-teal {
  color: var(--teal);
}

.metric-value.highlight-gold {
  color: var(--gold);
}

.metric-sub {
  font-size: 10.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

.progress-bar-bg {
  background: rgba(255, 255, 255, 0.1);
  height: 5px;
  border-radius: 3px;
  margin-top: 6px;
  overflow: hidden;
}

.progress-bar-fill {
  background: var(--teal);
  height: 100%;
  width: 85%;
  transition: width 0.3s ease;
}

/* --- MODAL --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 15, 26, 0.85);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  padding: 20px;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--navy);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 540px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.modal-header {
  background: var(--navy-card);
  border-bottom: 1px solid var(--border);
  padding: 16px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-white);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
}

.modal-close:hover {
  color: var(--text-white);
}

.modal-body {
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-group {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-size: 11.5px;
  color: var(--text-muted);
  margin-bottom: 5px;
  font-weight: 600;
}

.form-input {
  width: 100%;
  background: var(--navy-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--text-white);
  font-size: 12.5px;
  font-family: inherit;
  outline: none;
}

.form-input:focus {
  border-color: var(--border-active);
  box-shadow: 0 0 0 2px rgba(30, 74, 168, 0.2);
}

.modal-footer {
  background: var(--navy-card);
  border-top: 1px solid var(--border);
  padding: 14px 22px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.btn-secondary {
  background: transparent;
  color: var(--text-white);
  border: 1px solid var(--border);
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  cursor: pointer;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* --- MÓVIL --- */
@media (max-width: 900px) {
  html, body {
    overflow-x: hidden;
  }

  body {
    padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
  }

  .header {
    position: sticky;
    top: 0;
    padding: 8px 12px;
    gap: 8px;
    z-index: 40;
  }

  .brand-tagline {
    display: none;
  }

  .brand-logo-img {
    height: 36px;
    padding: 3px 6px;
  }

  .header-controls {
    width: 100%;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: space-between;
  }

  .header-phone,
  .header-controls > .btn-whatsapp {
    display: none;
  }

  .header-tools {
    width: 100%;
    min-width: 0;
    order: 3;
  }

  .desktop-pdf-btn {
    display: none;
  }

  .main-container {
    grid-template-columns: 1fr;
    grid-template-areas:
      "view"
      "side";
    min-height: 0;
  }

  .canvas-toolbar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding: 8px 10px;
  }

  .canvas-toolbar .field-select-sm {
    width: 100%;
    flex: 1 1 auto;
  }

  .canvas-toolbar .btn-tool {
    display: none;
  }

  .dim-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .dim-grid .field-label {
    margin-top: 10px;
  }

  .canvas-container {
    min-height: 38vh;
    height: 38vh;
  }

  .results-strip {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 10px;
  }

  .metric-card {
    padding: 10px;
  }

  .metric-header {
    font-size: 10px;
  }

  .metric-value {
    font-size: 16px;
  }

  .legal-disclaimer {
    font-size: 11px;
    padding: 10px 12px 16px;
  }

  .sidebar {
    border-right: none;
    border-top: 1px solid var(--border);
    padding: 14px 12px 96px;
  }

  .mobile-sticky-cta {
    display: flex;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 50;
    gap: 8px;
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px));
    background: rgba(11, 22, 48, 0.96);
    border-top: 1px solid var(--border);
  }

  .mobile-sticky-cta .btn-whatsapp,
  .mobile-sticky-cta .btn-primary {
    flex: 1;
    justify-content: center;
    min-height: 48px;
    font-size: 15px;
  }

  .modal-overlay {
    padding: 0;
    align-items: stretch;
  }

  .modal-card {
    max-width: 100%;
    max-height: 100%;
    min-height: 100%;
    border-radius: 0;
    display: flex;
    flex-direction: column;
  }

  .modal-body {
    flex: 1;
    overflow-y: auto;
  }

  .modal-footer {
    flex-direction: column-reverse;
  }

  .modal-footer .btn-primary,
  .modal-footer .btn-secondary {
    width: 100%;
    justify-content: center;
    min-height: 48px;
  }
}

@media (max-width: 420px) {
  .results-strip {
    grid-template-columns: 1fr 1fr;
  }

  .metric-card:last-child {
    grid-column: 1 / -1;
  }
}