/* CMCI · ¿Cuánto me cuesta ir?
   Arquitectura Ultra-Light High Density (Webnix)
   Estilos CSS puros, ultra-rápidos y sin dependencias pesadas
*/

:root {
  --bg-primary: #0a0f1d;
  --bg-secondary: #111827;
  --bg-card: #162032;
  --bg-card-hover: #1c2940;
  --bg-input: #0d1524;
  --border-color: #26354a;
  --border-focus: #3b82f6;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent-blue: #2563eb;
  --accent-blue-hover: #1d4ed8;
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-green-glow: rgba(16, 185, 129, 0.2);
  --accent-amber: #f59e0b;
  --accent-red: #ef4444;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.25);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Background Ambient Glow */
.bg-glow {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 800px;
  height: 350px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, rgba(6, 182, 212, 0.05) 50%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* Container */
.container {
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
  padding: 16px;
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Header & Nav */
header.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0 20px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  margin-bottom: 20px;
}

.brand-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-main);
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.brand-text h1 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text span {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-weight: 500;
}

.user-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-icon {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
  border-color: var(--border-focus);
}

/* Active Car Banner */
.car-pill-banner {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.9), rgba(15, 23, 42, 0.9));
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(8px);
}

.car-pill-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.car-emoji {
  font-size: 24px;
}

.car-pill-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}

.car-pill-specs {
  font-size: 0.78rem;
  color: var(--accent-cyan);
  display: flex;
  gap: 8px;
}

.btn-pill-edit {
  background: rgba(37, 99, 235, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-pill-edit:hover {
  background: rgba(37, 99, 235, 0.3);
  color: #fff;
}

/* Main Card */
.calculator-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  box-shadow: var(--shadow-card);
  margin-bottom: 20px;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Inputs & Form */
.form-group {
  margin-bottom: 16px;
  position: relative;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.input-with-action {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-dim);
  font-size: 16px;
  pointer-events: none;
}

.form-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 13px 14px 13px 40px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  transition: all 0.2s ease;
  outline: none;
  text-overflow: ellipsis;
}

.form-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
  background: #0f1828;
}

.form-input::placeholder {
  color: var(--text-dim);
}

.btn-gps-action {
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.35);
  color: #60a5fa;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.2s;
  user-select: none;
}

.btn-gps-action:hover {
  background: rgba(37, 99, 235, 0.3);
  color: #ffffff;
  border-color: #60a5fa;
}

/* Swap Button */
.swap-wrapper {
  display: flex;
  justify-content: center;
  margin: -6px 0 10px 0;
}

.btn-swap {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.btn-swap:hover {
  background: var(--bg-card-hover);
  color: var(--accent-cyan);
  transform: rotate(180deg);
}

/* Autocomplete Dropdown */
.autocomplete-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border-focus);
  border-radius: var(--radius-sm);
  margin-top: 4px;
  max-height: 220px;
  overflow-y: auto;
  z-index: 50;
  box-shadow: 0 10px 20px rgba(0,0,0,0.5);
  display: none;
}

.autocomplete-item {
  padding: 10px 14px;
  cursor: pointer;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  gap: 8px;
}

.autocomplete-item:hover, .autocomplete-item.active {
  background: rgba(37, 99, 235, 0.25);
  color: #fff;
}

/* Primary Action Button */
.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--accent-blue), #1d4ed8);
  color: #fff;
  border: none;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: var(--shadow-glow);
  margin-top: 10px;
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  transform: translateY(-1px);
  box-shadow: 0 0 25px rgba(37, 99, 235, 0.45);
}

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

/* Result Card */
.result-card {
  background: linear-gradient(145deg, #131d2e, #18253a);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.5), 0 0 20px rgba(37, 99, 235, 0.15);
  margin-bottom: 20px;
  display: none;
  animation: fadeIn 0.3s ease-out forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.result-header {
  text-align: center;
  margin-bottom: 20px;
}

.result-label {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 600;
}

.result-price {
  font-size: 3.2rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: #ffffff;
  line-height: 1.1;
  margin: 6px 0;
  text-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
}

.result-currency {
  font-size: 2rem;
  color: var(--accent-cyan);
  margin-left: 4px;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.metric-box {
  background: rgba(10, 15, 29, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  padding: 10px;
  text-align: center;
}

.metric-val {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.metric-lbl {
  font-size: 0.72rem;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-top: 2px;
}

/* Modals & Popups */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 480px;
  width: 100%;
  padding: 24px;
  box-shadow: var(--shadow-card);
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 700;
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
}

.btn-close:hover {
  color: var(--text-main);
}

/* Auth View */
.auth-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  margin-top: 10px;
}

.tabs-header {
  display: flex;
  background: var(--bg-input);
  border-radius: var(--radius-sm);
  padding: 4px;
  margin-bottom: 24px;
}

.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 9px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn.active {
  background: var(--bg-card);
  color: var(--text-main);
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}

.alert-message {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin-bottom: 16px;
  display: none;
}

.alert-error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.alert-success {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #86efac;
}

/* Footer */
footer.app-footer {
  margin-top: auto;
  padding: 24px 0 12px 0;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-dim);
}

footer a {
  color: var(--text-muted);
  text-decoration: none;
}

footer a:hover {
  color: var(--accent-cyan);
}

/* Loading Spinner */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 0.8s ease-in-out infinite;
}

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

/* Chips & Quick Badges */
.btn-chip {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.76rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  user-select: none;
}

.btn-chip:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-cyan);
  color: #fff;
}

.btn-chip.active {
  background: rgba(6, 182, 212, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.badge-matched {
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-top: 10px;
  font-size: 0.82rem;
  color: #bae6fd;
}