/* ============================================================
   MyShopping Admin — Login
   Basado en el sistema de diseño de la tienda
   ============================================================ */
:root {
  --primary: #be0560;
  --primary-light: #e84a8c;
  --primary-dark: #8e0448;
  --primary-alpha: rgba(190, 5, 96, 0.08);
  --primary-alpha-strong: rgba(190, 5, 96, 0.15);
  --text-dark: #1a1a2e;
  --text-muted: #6b7280;
  --bg-light: #faf5f7;
  --white: #ffffff;
  --border-light: #e5e5e5;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --primary: #e91a87;
  --primary-alpha: rgba(233, 26, 135, 0.18);
  --primary-alpha-strong: rgba(233, 26, 135, 0.25);
  --text-dark: #f1f1f6;
  --text-muted: #9ca3af;
  --bg-light: #16162a;
  --white: #1e1e36;
  --border-light: #3a3a5c;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.4);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
}

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

html { min-height: 100%; }

body {
  font-family: 'Poppins', sans-serif;
  background: var(--bg-light);
  color: var(--text-dark);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  line-height: 1.6;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: -50%;
  background: radial-gradient(circle at 30% 40%, var(--primary-alpha-strong) 0%, transparent 50%),
              radial-gradient(circle at 70% 60%, rgba(190, 5, 96, 0.06) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.login-wrapper {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
}

.login-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 48px 36px 36px;
  transition: background var(--transition), box-shadow var(--transition);
}

.login-logo {
  display: block;
  margin: 0 auto 8px;
  text-align: center;
}

.login-logo svg {
  width: 100%;
  max-width: 180px;
  height: auto;
  fill: var(--primary);
  transition: fill var(--transition);
}

.login-subtitle {
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-dark);
  letter-spacing: 0.3px;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  border: 2px solid var(--border-light);
  border-radius: var(--radius);
  background: var(--bg-light);
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.input-wrapper:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-alpha);
  background: var(--white);
}

.input-icon {
  position: absolute;
  left: 16px;
  color: var(--text-muted);
  font-size: 16px;
  pointer-events: none;
  transition: color var(--transition);
  z-index: 1;
}

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

.input-wrapper input {
  flex: 1;
  min-width: 0;
  padding: 14px 4px 14px 46px;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--text-dark);
  outline: none;
}

.input-wrapper input::placeholder { color: #9ca3af; }

.toggle-pass {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  margin-right: 4px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}

.toggle-pass:hover {
  color: var(--primary);
  background: var(--primary-alpha);
}

.form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
}

.form-row label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text-muted);
  font-weight: 400;
}

.form-row label input[type="checkbox"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.form-row a {
  color: var(--primary);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition);
}

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

.login-btn {
  width: 100%;
  padding: 16px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  letter-spacing: 0.5px;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.login-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(190, 5, 96, 0.35);
}

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

.login-btn.loading {
  pointer-events: none;
  opacity: 0.8;
}

.login-btn .spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.login-btn.loading .spinner { display: inline-block; }
.login-btn.loading .btn-text { display: none; }

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

.login-error {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(220, 38, 38, 0.08);
  color: #dc2626;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
}

.login-error.show { display: flex; }
.login-error i { font-size: 16px; }

.login-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.78rem;
  margin: 4px 0;
}

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

.login-footer {
  text-align: center;
  margin-top: 24px;
}

.login-footer a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

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

.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--border-light);
  background: var(--white);
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  box-shadow: var(--shadow-sm);
}

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

[data-theme="dark"] .theme-toggle {
  background: var(--white);
  border-color: var(--border-light);
}

[data-theme="dark"] .login-btn:hover {
  box-shadow: 0 8px 25px rgba(233, 26, 135, 0.4);
}

@media (max-width: 480px) {
  .login-card { padding: 36px 24px 28px; }
  .login-logo svg { max-width: 140px; }
  body { padding: 12px; }
}