/* ============================================================
   LOGIN PAGE - Premium Split Panel Design
   ============================================================ */

/* Acento único (coherente con dashboard/admin): sin arcoíris azul→violeta */
:root {
  --color-secondary: #3b82f6;
  --gradient-primary: linear-gradient(135deg, #3b82f6, #2f74e6);
  --gradient-accent: linear-gradient(135deg, #3b82f6, #2f74e6);
  --accent: #3b82f6;
}

/* --- Magic link (passwordless) --- */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.1rem 0 0.9rem;
}
.auth-divider span { flex: 1; height: 1px; background: var(--color-border, rgba(255,255,255,0.08)); }
.auth-divider em {
  font-style: normal;
  font-size: 0.72rem;
  color: var(--color-text-dim, #5a6478);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.btn-magic {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1rem;
  background: transparent;
  border: 1px solid var(--color-border, rgba(255,255,255,0.1));
  border-radius: 12px;
  color: var(--color-text, #e8edf5);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.btn-magic:hover:not(:disabled) { border-color: var(--accent, #3b82f6); background: rgba(59,130,246,0.06); }
.btn-magic:disabled { opacity: 0.6; cursor: default; }
.btn-magic svg { color: var(--accent, #3b82f6); }
.magic-hint {
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-text-dim, #5a6478);
  margin-top: 0.5rem;
}

/* Variables inherited from tokens.css (loaded first on all pages) */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 14px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
::selection { background: var(--color-primary); color: #fff; }

/* ============================================================
   SPLIT LAYOUT
   ============================================================ */
.login-page {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
}

/* ============================================================
   LEFT - BRANDING PANEL
   ============================================================ */
.login-branding {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  padding-bottom: 5rem;
  background: var(--color-bg);
  overflow: hidden;
}

/* Animated background grid */
.login-branding::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 20%, transparent 70%);
  animation: grid-pulse 6s ease-in-out infinite;
}

@keyframes grid-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.branding-glow {
  position: absolute;
  top: 20%;
  left: 20%;
  width: 450px;
  height: 450px;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.12), transparent 65%);
  filter: blur(80px);
  pointer-events: none;
  animation: glow-float 8s ease-in-out infinite;
}

@keyframes glow-float {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(20px, -15px); }
  50% { transform: translate(-10px, 20px); }
  75% { transform: translate(15px, 10px); }
}

.branding-content {
  position: relative;
  z-index: 1;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  animation: fadeInUp 0.6s ease forwards;
}

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

.branding-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-dim);
  margin-bottom: 2.5rem;
  transition: all var(--transition);
  padding: 0.3rem 0;
}

.branding-back:hover {
  color: var(--color-primary);
}

.branding-back svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition);
}

.branding-back:hover svg {
  transform: translateX(-3px);
}

.branding-logo {
  width: 72px;
  height: auto;
  border-radius: var(--radius-md);
  margin-bottom: 1.75rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--color-border);
}

.branding-title {
  font-size: 2.1rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.75rem;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.branding-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 2.25rem;
}

.branding-features {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.branding-feature {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.branding-feature:hover {
  background: rgba(59, 130, 246, 0.06);
  border-color: rgba(59, 130, 246, 0.15);
  transform: translateX(4px);
}

.branding-feature svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.branding-feature:hover svg {
  transform: scale(1.1);
}

/* Branding feature staggered animation */
.branding-feature:nth-child(1) { animation: fadeInUp 0.5s ease 0.2s both; }
.branding-feature:nth-child(2) { animation: fadeInUp 0.5s ease 0.3s both; }
.branding-feature:nth-child(3) { animation: fadeInUp 0.5s ease 0.4s both; }

/* ============================================================
   RIGHT - FORM PANEL
   ============================================================ */
.login-form-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 2.5rem;
  background: var(--color-surface);
  position: relative;
  border-left: 1px solid var(--color-border);
}

/* Subtle radial glow on form panel */
.login-form-panel::before {
  content: '';
  position: absolute;
  top: 15%;
  right: 15%;
  width: 300px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.04), transparent 70%);
  pointer-events: none;
}

.login-form-panel::after {
  content: '';
  position: absolute;
  bottom: 10%;
  left: 10%;
  width: 250px;
  height: 250px;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.03), transparent 70%);
  pointer-events: none;
}

.login-form-container {
  width: 100%;
  max-width: 400px;
  animation: fadeIn 0.5s ease forwards;
  position: relative;
  z-index: 1;
}

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

.form-header {
  margin-bottom: 2rem;
}

.form-header h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.form-header p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Header icon for each view */
.form-header-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.12);
}

.form-header-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

/* Input groups */
.input-row-half {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

@media (max-width: 400px) {
  .input-row-half {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

.input-group {
  margin-bottom: 1.25rem;
}

.input-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 0.45rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  transition: color var(--transition);
}

.input-group:focus-within label {
  color: var(--color-primary);
}

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

.input-icon {
  position: absolute;
  left: 1rem;
  width: 18px;
  height: 18px;
  color: var(--color-text-dim);
  pointer-events: none;
  transition: color var(--transition);
}

.input-wrapper input {
  width: 100%;
  padding: 0.9rem 1rem 0.9rem 2.85rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: all var(--transition);
}

.input-wrapper input::placeholder {
  color: var(--color-text-dim);
  transition: opacity var(--transition-fast);
}

.input-wrapper input:focus::placeholder {
  opacity: 0.5;
}

.input-wrapper:hover input:not(:focus) {
  border-color: var(--color-border-hover);
}

.input-wrapper input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), 0 2px 8px rgba(0, 0, 0, 0.12);
  background: rgba(6, 10, 19, 0.8);
}

.input-wrapper input:focus ~ .input-icon,
.input-wrapper:focus-within .input-icon {
  color: var(--color-primary);
}

/* Valid input state */
.input-wrapper input:valid:not(:placeholder-shown):not(:focus) {
  border-color: rgba(34, 197, 94, 0.25);
}

/* Password strength meter */
.password-strength {
  display: flex;
  gap: 4px;
  margin-top: 0.5rem;
  height: 3px;
}

.strength-bar {
  flex: 1;
  height: 100%;
  border-radius: 2px;
  background: var(--color-surface-2);
  transition: background var(--transition);
}

.strength-bar.active.weak { background: var(--color-error); }
.strength-bar.active.medium { background: var(--color-warning); }
.strength-bar.active.strong { background: var(--color-success); }

.password-strength-text {
  font-size: 0.72rem;
  font-weight: 600;
  margin-top: 0.3rem;
  transition: color var(--transition);
}

.password-strength-text.weak { color: var(--color-error); }
.password-strength-text.medium { color: var(--color-warning); }
.password-strength-text.strong { color: var(--color-success); }

/* Password toggle */
.toggle-password {
  position: absolute;
  right: 0.75rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--color-text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition);
}

.toggle-password:hover {
  color: var(--color-primary);
}

.icon-eye { width: 20px; height: 20px; }

.toggle-password.is-visible .icon-eye {
  color: var(--color-primary);
}

/* ============================================================
   AUTH VIEW SWITCHING
   ============================================================ */
.auth-view {
  display: none;
}

.auth-view.active {
  display: block;
  animation: viewSlideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes viewSlideIn {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Form options (forgot password) */
.form-options {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 0.5rem;
  margin-top: -0.5rem;
}

/* Link buttons */
.link-btn {
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 0.82rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  padding: 0;
  transition: all var(--transition);
  position: relative;
}

.link-btn::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.link-btn:hover {
  color: var(--color-accent);
}

.link-btn:hover::after {
  width: 100%;
}

/* Auth switch (bottom text) */
.auth-switch {
  text-align: center;
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
}

.auth-switch p {
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

/* Error message */
.error-msg {
  min-height: 0;
  max-height: 0;
  overflow: hidden;
  font-size: 0.82rem;
  color: var(--color-error);
  font-weight: 500;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.error-msg.visible {
  min-height: 1.5em;
  max-height: 3em;
  opacity: 1;
  margin-bottom: 0.75rem;
  padding: 0.6rem 0.9rem;
  background: rgba(239, 68, 68, 0.06);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(239, 68, 68, 0.12);
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(2px); }
}

/* Success message */
.success-msg {
  min-height: 0;
  max-height: 0;
  overflow: hidden;
  font-size: 0.82rem;
  color: var(--color-success);
  font-weight: 500;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 0;
}

.success-msg.visible {
  min-height: 1.5em;
  max-height: 5em;
  opacity: 1;
  margin-bottom: 0.75rem;
  padding: 0.6rem 0.9rem;
  background: rgba(34, 197, 94, 0.06);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(34, 197, 94, 0.15);
}

/* Login button */
.btn-login {
  width: 100%;
  padding: 0.95rem;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  font-family: inherit;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 20px var(--color-primary-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  letter-spacing: 0.02em;
  position: relative;
  overflow: hidden;
  margin-top: 0.5rem;
}

.btn-login::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
  transition: left 0.5s ease;
}

.btn-login:hover::before {
  left: 100%;
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--color-primary-glow);
}

.btn-login:active {
  transform: translateY(0) scale(0.98);
}

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

.btn-login.loading {
  opacity: 0.7;
  pointer-events: none;
  transform: none;
}

.btn-loader {
  display: none;
  align-items: center;
  animation: spin 0.8s linear infinite;
}

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

/* Arrow icon that appears on button hover */
.btn-login .btn-arrow {
  width: 18px;
  height: 18px;
  opacity: 0;
  transform: translateX(-8px);
  transition: all var(--transition);
}

.btn-login:hover .btn-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* Login footer */
.login-footer {
  margin-top: 2.5rem;
  text-align: center;
}

.secure-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.75rem;
  color: var(--color-success);
  font-weight: 500;
  margin-bottom: 0.75rem;
  padding: 0.4rem 0.85rem;
  background: rgba(34, 197, 94, 0.05);
  border-radius: 20px;
  border: 1px solid rgba(34, 197, 94, 0.1);
  letter-spacing: 0.2px;
}

.secure-badge svg {
  width: 13px;
  height: 13px;
}

.secure-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-success);
  animation: secure-pulse 2s ease-in-out infinite;
}

@keyframes secure-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.login-help {
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

.login-help a {
  color: var(--color-primary);
  font-weight: 600;
  transition: color var(--transition);
}

.login-help a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* Divider with text */
.form-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.25rem 0;
  color: var(--color-text-dim);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-card {
  background: var(--color-surface);
  color: var(--color-text);
  padding: 2rem;
  border-radius: var(--radius-md);
  max-width: 400px;
  width: 90%;
  position: relative;
  text-align: left;
  box-shadow: var(--shadow-md);
  animation: modalIn 0.3s ease;
  border: 1px solid var(--color-border);
}

.modal-bar {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-error);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.modal-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-error);
}

.modal-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.modal-card button {
  padding: 0.6rem 1.5rem;
  border: none;
  background: var(--color-error);
  color: #fff;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  font-family: inherit;
  font-size: 0.9rem;
  transition: background var(--transition-fast);
}

.modal-card button:hover {
  background: #dc2626;
}

@keyframes modalIn {
  from { transform: translateY(-20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Mobile back link (hidden on desktop, shown on mobile) */
.mobile-back-link {
  display: none;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-dim);
  margin-bottom: 1.5rem;
  padding: 0.3rem 0;
  transition: all var(--transition);
}

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

.mobile-back-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition);
}

.mobile-back-link:hover svg {
  transform: translateX(-3px);
}

/* ============================================================
   DESKTOP: Refined look
   ============================================================ */
@media (min-width: 901px) {
  .branding-glow {
    filter: blur(100px);
    opacity: 0.6;
  }

  .btn-login {
    box-shadow: 0 2px 12px rgba(59, 130, 246, 0.18);
  }

  .btn-login:hover {
    box-shadow: 0 6px 24px rgba(59, 130, 246, 0.25);
  }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .login-page {
    grid-template-columns: 1fr;
  }

  .login-branding {
    display: none;
  }

  .mobile-back-link {
    display: inline-flex;
  }

  .login-form-panel {
    min-height: 100vh;
    padding: 2rem 1.5rem;
    border-left: none;
    align-items: flex-start;
    padding-top: 2.5rem;
  }

  .login-form-panel::before,
  .login-form-panel::after {
    display: none;
  }

  /* Show a top gradient bar on mobile */
  .login-form-container::before {
    content: '';
    display: block;
    width: 48px;
    height: 4px;
    border-radius: 2px;
    background: var(--gradient-primary);
    margin-bottom: 1.75rem;
  }
}

@media (max-width: 480px) {
  .login-form-panel {
    padding: 1.5rem 1.25rem;
  }

  .form-header h2 {
    font-size: 1.35rem;
  }

  .btn-login {
    padding: 0.9rem;
    font-size: 0.95rem;
  }

  .form-header-icon {
    width: 42px;
    height: 42px;
  }

  .form-header-icon svg {
    width: 20px;
    height: 20px;
  }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}