/* ========================================
   DYGO COPY PLATFORM - MAIN STYLES
   ======================================== */

/* Variables CSS */
:root {
  /* Colores Primarios */
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #dbeafe;
  --primary-lighter: #eff6ff;

  /* Neutrales */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* Estados */
  --success: #10b981;
  --success-light: #d1fae5;
  --error: #ef4444;
  --error-light: #fee2e2;
  --warning: #f59e0b;
  --warning-light: #fef3c7;

  /* Fondo */
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);

  /* Tipografía */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'Courier New', Courier, monospace;

  /* Sombras */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Bordes */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Transiciones */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;
}

/* Reset y Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-900);
  background-color: var(--bg-secondary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.5rem;
  color: var(--gray-900);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: 1rem;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--primary-dark);
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */
.header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--gray-200);
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
  margin: 0;
}

.tagline {
  font-size: 0.875rem;
  color: var(--gray-500);
  font-weight: 500;
  margin: 0;
}

/* Hero Section */
.hero {
  background: var(--bg-gradient);
  color: white;
  padding: 4rem 0;
  text-align: center;
}

.hero-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: white;
}

.hero-subtitle {
  font-size: 1.25rem;
  opacity: 0.95;
  font-weight: 400;
}

/* Tools Section */
.tools-section {
  padding: 4rem 0;
}

.tools-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.tool-card {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-slow);
  display: block;
  border: 2px solid transparent;
}

.tool-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.tool-icon {
  width: 64px;
  height: 64px;
  background: var(--primary-lighter);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.tool-icon svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

.tool-title {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--gray-900);
}

.tool-description {
  color: var(--gray-600);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.tool-cta {
  display: inline-block;
  color: var(--primary);
  font-weight: 600;
  font-size: 1.125rem;
}

/* Features Section */
.features-section {
  padding: 4rem 0;
  background: var(--bg-primary);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2rem;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.feature-item {
  text-align: center;
  padding: 1.5rem;
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-item h4 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.feature-item p {
  color: var(--gray-600);
  margin: 0;
}

/* Footer */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 2rem 0;
  text-align: center;
  margin-top: 4rem;
}

.footer p {
  margin: 0;
  font-size: 0.875rem;
}

/* Botones */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  text-align: center;
  font-family: inherit;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
  background: var(--gray-200);
  color: var(--gray-700);
}

.btn-secondary:hover {
  background: var(--gray-300);
}

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

.btn-success:hover {
  background: #059669;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

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

/* Utilidades */
.hidden {
  display: none !important;
}

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* Spinner de Loading */
.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 2rem auto;
}

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

.loading-container {
  text-align: center;
  padding: 3rem;
}

.loading-container p {
  color: var(--gray-600);
  margin-top: 1rem;
}

/* Alerts */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  border-left: 4px solid;
}

.alert-success {
  background: var(--success-light);
  border-color: var(--success);
  color: #065f46;
}

.alert-error {
  background: var(--error-light);
  border-color: var(--error);
  color: #991b1b;
}

.alert-warning {
  background: var(--warning-light);
  border-color: var(--warning);
  color: #92400e;
}

/* Responsive Breakpoints */
@media (min-width: 641px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 3rem;
  }

  .hero-subtitle {
    font-size: 1.5rem;
  }

  .tools-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  h1 { font-size: 3rem; }
  h2 { font-size: 2.5rem; }
}

@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
}

/* Logout Button Styles */
.logout-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--gray-500);
  transition: all 0.2s;
  margin-left: auto;
}

.logout-btn:hover {
  background: var(--gray-100);
  color: var(--error);
}

.logout-btn svg {
  width: 20px;
  height: 20px;
}