/**
 * auth.css
 * 
 * Estilos para páginas de autenticación
 * - Login
 * - Registro
 * - Recuperación de contraseña
 * 
 * Basado en colores institucionales UCR/INIE
 * @author Isaac Miranda
 * @date 2026-04-15
 */

/* ═══════════════════════════════════════════════════════════
   CSS VARIABLES (Color Scheme)
═══════════════════════════════════════════════════════════ */

:root {
  --color-primary: #0071bc;
  --color-primary-dark: #005a96;
  --color-secondary: #29abe2;
  --color-accent: #f3bb00;
  --color-success: #28a745;
  --color-error: #dc3545;
  --color-warning: #ffc107;
  --color-info: #17a2b8;
  --color-text: #333;
  --color-text-light: #666;
  --color-text-lighter: #999;
  --color-border: #e0e0e0;
  --color-bg: #f8f9fa;
  --color-bg-light: #ffffff;
  
  --border-radius: 6px;
  --border-radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);
  
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
  --font-serif: 'DM Serif Display', serif;
  --font-mono: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.2s ease;
  --transition-slow: 0.3s ease;
}

/* ═══════════════════════════════════════════════════════════
   RESET
═══════════════════════════════════════════════════════════ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════
   LOGIN CONTAINER
═══════════════════════════════════════════════════════════ */

.login-container {
  display: flex;
  width: 100%;
  max-width: 1200px;
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  min-height: 600px;
}

/* ─────────────────────────────────────────────────────────
   LOGIN BRAND SECTION (Izquierda)
─────────────────────────────────────────────────────────── */

.login-brand-section {
  flex: 1;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: white;
  padding: 60px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  animation: slideInLeft 0.5s ease forwards;
  opacity: 0;
}

@keyframes slideInLeft {
  to {
    opacity: 1;
    transform: translateX(0);
  }
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
}

.login-brand-seal {
  width: 80px;
  height: 80px;
  margin-bottom: 30px;
  opacity: 0.95;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.login-brand-seal svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
}

.login-brand-name {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 10px;
  font-family: var(--font-serif);
  letter-spacing: 0.5px;
}

.login-brand-text {
  font-size: 14px;
  opacity: 0.95;
  margin-bottom: 20px;
  line-height: 1.8;
  font-weight: 300;
}

.login-brand-tagline {
  font-size: 13px;
  opacity: 0.8;
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  padding-top: 20px;
  margin-top: 20px;
  font-style: italic;
}

/* ─────────────────────────────────────────────────────────
   LOGIN FORM SECTION (Derecha)
─────────────────────────────────────────────────────────── */

.login-form-section {
  flex: 1;
  padding: 60px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  animation: slideInRight 0.5s ease forwards 0.1s;
  opacity: 0;
}

@keyframes slideInRight {
  to {
    opacity: 1;
    transform: translateX(0);
  }
  from {
    opacity: 0;
    transform: translateX(30px);
  }
}

.login-form-title {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-primary-dark);
  font-family: var(--font-serif);
}

.login-form-subtitle {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 30px;
  font-weight: 400;
}

/* ─────────────────────────────────────────────────────────
   ALERTS
─────────────────────────────────────────────────────────── */

.login-alert {
  background: #fff3cd;
  border: 1px solid var(--color-warning);
  border-radius: var(--border-radius);
  padding: 12px 16px;
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 13px;
  color: #856404;
  animation: slideDown 0.3s ease;
}

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

.login-alert svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 2px;
  stroke-width: 2;
}

.login-alert.alert-error {
  background: #f8d7da;
  border-color: var(--color-error);
  color: #721c24;
}

.login-alert.alert-success {
  background: #d4edda;
  border-color: var(--color-success);
  color: #155724;
}

.login-alert.alert-info {
  background: #d1ecf1;
  border-color: var(--color-info);
  color: #0c5460;
}

/* ─────────────────────────────────────────────────────────
   FORMULARIO
─────────────────────────────────────────────────────────── */

.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.login-field label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 6px;
}

.login-field label .required {
  color: var(--color-error);
  font-weight: 700;
}

.login-field-input-wrapper {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 0 12px;
  background: white;
  transition: all var(--transition-normal);
  height: 44px;
}

.login-field-input-wrapper:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
  background: #f9fbff;
}

.login-field-input-wrapper svg {
  width: 16px;
  height: 16px;
  color: var(--color-text-lighter);
  flex-shrink: 0;
  transition: color var(--transition-normal);
}

.login-field-input-wrapper:focus-within svg {
  color: var(--color-primary);
}

.login-field input {
  flex: 1;
  border: none;
  padding: 0 8px;
  font-size: 14px;
  background: transparent;
  outline: none;
  font-family: var(--font-sans);
  color: var(--color-text);
}

.login-field input::placeholder {
  color: var(--color-text-lighter);
}

.login-field input:autofill {
  -webkit-autofill: true;
  -webkit-autofill-text-fill-color: var(--color-text);
}

.login-field input:autofill,
.login-field input:autofill:hover,
.login-field input:autofill:focus {
  -webkit-box-shadow: 0 0 0 1000px white inset !important;
}

/* ─────────────────────────────────────────────────────────
   BOTONES
─────────────────────────────────────────────────────────── */

.login-button {
  padding: 12px 16px;
  border: none;
  border-radius: var(--border-radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  width: 100%;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  line-height: 1;
  user-select: none;
}

.login-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Botón Primary */
.login-button-primary {
  background: var(--color-primary);
  color: white;
}

.login-button-primary:hover:not(:disabled) {
  background: #0052a3;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.login-button-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 102, 204, 0.2);
}

.login-button-primary:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Botón SSO */
.login-button-sso {
  background: white;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.login-button-sso:hover:not(:disabled) {
  background: var(--color-primary);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.login-button-sso:active:not(:disabled) {
  transform: translateY(0);
}

.login-button-sso svg {
  width: 16px;
  height: 16px;
}

/* ─────────────────────────────────────────────────────────
   DIVIDER
─────────────────────────────────────────────────────────── */

.login-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  font-size: 12px;
  color: var(--color-text-lighter);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* ─────────────────────────────────────────────────────────
   FOOTER
─────────────────────────────────────────────────────────── */

.login-footer {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-light);
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  line-height: 1.8;
}

.login-footer p {
  margin-bottom: 8px;
}

.login-footer strong {
  color: var(--color-text);
}

.login-footer a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-normal);
}

.login-footer a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE - TABLETS (768px)
═══════════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
  .login-container {
    max-width: 90%;
  }

  .login-brand-section {
    padding: 50px 35px;
  }

  .login-form-section {
    padding: 50px 35px;
  }

  .login-brand-name {
    font-size: 32px;
  }

  .login-form-title {
    font-size: 24px;
  }
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE - MÓVILES (768px and below)
═══════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  .login-container {
    flex-direction: column;
    min-height: auto;
    width: 100%;
    max-width: 100%;
    border-radius: 0;
  }

  .login-brand-section {
    padding: 40px 30px;
    min-height: 300px;
    justify-content: flex-start;
  }

  .login-brand-seal {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
  }

  .login-brand-name {
    font-size: 28px;
    margin-bottom: 8px;
  }

  .login-brand-text {
    font-size: 13px;
    margin-bottom: 16px;
  }

  .login-brand-tagline {
    font-size: 12px;
    padding-top: 16px;
    margin-top: 16px;
  }

  .login-form-section {
    padding: 40px 30px;
    justify-content: flex-start;
  }

  .login-form-title {
    font-size: 22px;
  }

  .login-form-subtitle {
    font-size: 13px;
    margin-bottom: 24px;
  }

  .login-field-input-wrapper {
    height: 48px;
  }

  .login-button {
    padding: 14px 16px;
    font-size: 15px;
    min-height: 48px;
  }

  .login-footer {
    font-size: 11px;
    margin-top: 24px;
    padding-top: 16px;
  }
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE - TELÉFONOS PEQUEÑOS (480px and below)
═══════════════════════════════════════════════════════════ */

@media (max-width: 480px) {
  body {
    background: white;
  }

  .login-container {
    box-shadow: none;
  }

  .login-brand-section {
    padding: 30px 20px;
    min-height: 250px;
  }

  .login-brand-seal {
    width: 50px;
    height: 50px;
    margin-bottom: 15px;
  }

  .login-brand-name {
    font-size: 24px;
  }

  .login-form-section {
    padding: 30px 20px;
  }

  .login-form-title {
    font-size: 20px;
  }

  .login-form-subtitle {
    font-size: 12px;
    margin-bottom: 20px;
  }

  .login-field {
    gap: 4px;
  }

  .login-field label {
    font-size: 13px;
  }

  .login-field-input-wrapper {
    height: 44px;
    padding: 0 10px;
  }

  .login-field input {
    font-size: 16px;
    padding: 0 6px;
  }

  .login-button {
    padding: 12px 14px;
    font-size: 14px;
  }

  .login-alert {
    padding: 10px 12px;
    font-size: 12px;
  }

  .login-divider {
    margin: 16px 0;
    font-size: 11px;
    gap: 8px;
  }

  .login-footer {
    font-size: 10px;
    margin-top: 20px;
    padding-top: 12px;
  }
}

/* ═══════════════════════════════════════════════════════════
   MODO OSCURO (Prefers-color-scheme)
═══════════════════════════════════════════════════════════ */

@media (prefers-color-scheme: dark) {
  :root {
    --color-text: #e0e0e0;
    --color-text-light: #b0b0b0;
    --color-text-lighter: #808080;
    --color-border: #404040;
    --color-bg: #1a1a1a;
    --color-bg-light: #252525;
  }

  body {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
  }

  .login-container {
    background: #252525;
    box-shadow: var(--shadow-lg);
  }

  .login-field-input-wrapper {
    background: #333;
    border-color: #404040;
  }

  .login-field-input-wrapper:focus-within {
    background: #2a2a35;
    border-color: var(--color-primary);
  }

  .login-field input {
    color: var(--color-text);
  }

  .login-field input::placeholder {
    color: var(--color-text-lighter);
  }

  .login-field input:autofill,
  .login-field input:autofill:hover,
  .login-field input:autofill:focus {
    -webkit-box-shadow: 0 0 0 1000px #333 inset !important;
    -webkit-text-fill-color: var(--color-text);
  }

  .login-button-sso {
    background: transparent;
    border-color: var(--color-primary);
  }

  .login-button-sso:hover:not(:disabled) {
    background: rgba(0, 102, 204, 0.1);
  }
}

/* ═══════════════════════════════════════════════════════════
   ACCESIBILIDAD
═══════════════════════════════════════════════════════════ */

/* Focus visible */
.login-button:focus-visible,
.login-field input:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .login-brand-section,
  .login-form-section {
    animation: none;
    opacity: 1;
  }
}

/* High contrast mode */
@media (prefers-contrast: more) {
  .login-button-primary {
    border: 2px solid currentColor;
  }

  .login-field-input-wrapper {
    border-width: 2px;
  }

  .login-alert {
    border-width: 2px;
  }
}

/* ═══════════════════════════════════════════════════════════
   UTILIDADES
═══════════════════════════════════════════════════════════ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Print styles */
@media print {
  body {
    background: white;
  }

  .login-container {
    box-shadow: none;
    border: 1px solid #ddd;
  }

  .login-brand-section {
    display: none;
  }
}