/* css/main.css - Estilos globales */

:root {
  --primary-color: #6366f1;
  --secondary-color: #ec4899;
  --success-color: #10b981;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;

  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;

  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-light: #d1d5db;

  --border-color: #e5e7eb;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);

  --transition: all 0.3s ease;
}

/* Tema oscuro */
body.dark {
  --primary-color: #818cf8;
  --secondary-color: #f472b6;
  --success-color: #34d399;
  --danger-color: #f87171;
  --warning-color: #fbbf24;

  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;

  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-light: #64748b;

  --border-color: #475569;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
}

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

html, body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
}

/* Tipografía */
h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 2.5rem;
  height: 2.5rem;
  object-fit: contain;
  display: inline-block;
}

h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

strong {
  font-weight: 600;
  color: var(--text-primary);
}

/* Botones */
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: inline-block;
  text-align: center;
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background: #4f46e5;
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-secondary);
}

.btn-small {
  padding: 8px 16px;
  font-size: 12px;
}

/* Navbar */
.navbar {
  background: var(--bg-primary);
  box-shadow: var(--shadow);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar h1 {
  font-size: 1.5rem;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar .logo-icon {
  width: 1.8rem;
  height: 1.8rem;
  object-fit: contain;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-right span {
  color: var(--text-secondary);
}

/* Pantallas */
.screen {
  display: none;
  min-height: calc(100vh - 70px);
  padding: 20px;
  animation: fadeIn 0.3s ease;
}

.screen.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Formularios */
input[type="text"],
input[type="password"],
input[type="email"],
textarea,
select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--border-color);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
  background: #4f46e5;
  transform: scale(1.1);
}

input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

input[type="range"]::-moz-range-thumb:hover {
  background: #4f46e5;
  transform: scale(1.1);
}

/* Progress */
progress {
  width: 100%;
  height: 4px;
  border: none;
  border-radius: 2px;
  background: var(--border-color);
  overflow: hidden;
}

progress::-webkit-progress-bar {
  background: var(--border-color);
  border-radius: 2px;
}

progress::-webkit-progress-value {
  background: var(--primary-color);
  border-radius: 2px;
}

progress::-moz-progress-bar {
  background: var(--primary-color);
  border-radius: 2px;
}

/* Utilidades */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

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

.mb-1 {
  margin-bottom: 0.5rem;
}

.mb-2 {
  margin-bottom: 1rem;
}

.mb-3 {
  margin-bottom: 1.5rem;
}

.mb-4 {
  margin-bottom: 2rem;
}

.mt-1 {
  margin-top: 0.5rem;
}

.mt-2 {
  margin-top: 1rem;
}

.mt-3 {
  margin-top: 1.5rem;
}

.mt-4 {
  margin-top: 2rem;
}

.gap-1 {
  gap: 0.5rem;
}

.gap-2 {
  gap: 1rem;
}

.gap-3 {
  gap: 1.5rem;
}

/* Spinner */
.spinner {
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 20px auto;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Modo oscuro (opcional) */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #1f2937;
    --bg-secondary: #111827;
    --bg-tertiary: #374151;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-light: #9ca3af;
    --border-color: #374151;
  }
}

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .nav-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .navbar h1 {
    font-size: 1.25rem;
  }

  .nav-right {
    width: 100%;
    justify-content: center;
  }
}