/**
 * Custom CSS - LinuxES | Soporte Técnico Linux en Español
 * Tema oscuro profesional con acentos cyan (#22d3ee)
 * Compatible con TailwindCSS
 */

/* ===== Variables CSS ===== */
:root {
  --color-primary: #22d3ee;
  --color-primary-dark: #06b6d4;
  --color-primary-light: #67e8f9;
  --color-bg-dark: #0f172a;
  --color-bg-medium: #1e293b;
  --color-bg-light: #334155;
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-border: #475569;
  --transition-base: all 0.3s ease;
}

/* ===== Reset y Base ===== */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--color-bg-dark);
  color: var(--color-text-primary);
  line-height: 1.6;
}

/* ===== Componentes Reutilizables ===== */

/* Cards */
.card {
  background-color: var(--color-bg-medium);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  transition: var(--transition-base);
}

.card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 10px 40px -10px rgba(34, 211, 238, 0.15);
}

/* Inputs */
.input-text {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  color: var(--color-text-primary);
  font-size: 1rem;
  transition: var(--transition-base);
}

.input-text:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.2);
}

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

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: var(--transition-base);
  text-decoration: none;
  border: none;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(34, 211, 238, 0.4);
}

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

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

/* ===== Navegación ===== */
.nav-link {
  position: relative;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: var(--transition-base);
  padding: 0.5rem 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Menú móvil */
.mobile-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.mobile-menu.open {
  max-height: 400px;
}

/* Hamburger */
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  margin: 5px 0;
  transition: var(--transition-base);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero Section ===== */
.hero-gradient {
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-bg-medium) 100%);
}

.hero-pattern {
  background-image: radial-gradient(circle at 1px 1px, var(--color-border) 1px, transparent 0);
  background-size: 40px 40px;
}

/* ===== Iconos de Servicios ===== */
.service-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: 0.75rem;
  color: var(--color-bg-dark);
  margin-bottom: 1rem;
}

/* ===== Animaciones ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(34, 211, 238, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(34, 211, 238, 0.5);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

.animate-delay-100 {
  animation-delay: 0.1s;
}

.animate-delay-200 {
  animation-delay: 0.2s;
}

.animate-delay-300 {
  animation-delay: 0.3s;
}

.pulse-glow {
  animation: pulse-glow 2s infinite;
}

/* ===== Blog - Bloques de Código ===== */
.code-block {
  background-color: #0d1117;
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 1rem;
  overflow-x: auto;
  font-family: 'Fira Code', 'Monaco', monospace;
  font-size: 0.875rem;
  line-height: 1.7;
}

.code-block code {
  color: #e6edf3;
}

/* Syntax highlighting básico */
.code-keyword { color: #ff7b72; }
.code-string { color: #a5d6ff; }
.code-comment { color: #8b949e; }
.code-function { color: #d2a8ff; }
.code-number { color: #79c0ff; }

/* ===== Footer ===== */
.footer-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: var(--transition-base);
}

.footer-link:hover {
  color: var(--color-primary);
}

/* ===== Estados de Formulario ===== */
.form-success {
  background-color: rgba(34, 197, 94, 0.1);
  border: 1px solid #22c55e;
  color: #22c55e;
  padding: 1rem;
  border-radius: 0.5rem;
  margin-top: 1rem;
}

.form-error {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid #ef4444;
  color: #ef4444;
  padding: 1rem;
  border-radius: 0.5rem;
  margin-top: 1rem;
}

.input-error {
  border-color: #ef4444 !important;
}

/* ===== Utilidades ===== */
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.border-glow {
  border: 1px solid var(--color-primary);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.2);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .card {
    padding: 1rem;
  }
  
  .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
  }
}

/* ===== Scrollbar Personalizada ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--color-bg-light);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-border);
}

/* ===== Selección de Texto ===== */
::selection {
  background-color: var(--color-primary);
  color: var(--color-bg-dark);
}

/* ===== Banner de Cookies ===== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background-color: var(--color-bg-medium);
  border-top: 1px solid var(--color-border);
  padding: 1.25rem;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
}

.cookie-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.cookie-modal-content {
  background-color: var(--color-bg-medium);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

.cookie-toggle {
  position: relative;
  width: 48px;
  height: 24px;
  background-color: var(--color-bg-light);
  border-radius: 24px;
  cursor: pointer;
  transition: var(--transition-base);
}

.cookie-toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background-color: var(--color-text-secondary);
  border-radius: 50%;
  transition: var(--transition-base);
}

.cookie-toggle.active,
input:checked + .cookie-toggle {
  background-color: var(--color-primary);
}

.cookie-toggle.active::after,
input:checked + .cookie-toggle::after {
  transform: translateX(24px);
  background-color: var(--color-bg-dark);
}

.cookie-toggle.disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Ocultar checkbox nativo */
.cookie-checkbox {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

/* ===== Modo Claro / Light Mode ===== */
:root {
  --light-bg-dark: #f8fafc;
  --light-bg-medium: #ffffff;
  --light-bg-light: #e2e8f0;
  --light-text-primary: #0f172a;
  --light-text-secondary: #475569;
  --light-border: #cbd5e1;
}

body.light-mode {
  background-color: var(--light-bg-dark);
  color: var(--light-text-primary);
}

body.light-mode .bg-slate-900 {
  background-color: var(--light-bg-dark) !important;
}

body.light-mode .bg-slate-800,
body.light-mode .bg-slate-800\/50 {
  background-color: var(--light-bg-medium) !important;
}

body.light-mode .card,
body.light-mode .bg-slate-800\/30 {
  background-color: var(--light-bg-medium) !important;
  border-color: var(--light-border) !important;
}

body.light-mode .text-slate-100,
body.light-mode .text-white {
  color: var(--light-text-primary) !important;
}

body.light-mode .text-slate-300,
body.light-mode .text-slate-400 {
  color: var(--light-text-secondary) !important;
}

body.light-mode .border-slate-700,
body.light-mode .border-slate-800 {
  border-color: var(--light-border) !important;
}

body.light-mode .input-text {
  background-color: var(--light-bg-light);
  border-color: var(--light-border);
  color: var(--light-text-primary);
}

body.light-mode .bg-slate-900\/95 {
  background-color: rgba(248, 250, 252, 0.95) !important;
}

body.light-mode .bg-slate-700 {
  background-color: var(--light-bg-light) !important;
}

body.light-mode .bg-slate-950 {
  background-color: #f1f5f9 !important;
}

body.light-mode .text-green-400 {
  color: #059669 !important;
}

/* Theme Toggle Button */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-base);
  font-size: 1.25rem;
}

.theme-toggle:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

body.light-mode .theme-toggle {
  background-color: var(--light-bg-light);
  border-color: var(--light-border);
}

body.light-mode .theme-toggle:hover {
  background-color: var(--color-primary);
}