/* =============================================
   login.css – Login page styles (light + dark)
   ============================================= */

/* --- Light mode tokens (default) --- */
:root {
  --login-bg-start:        #ccdfe8;
  --login-bg-end:          #e8d4bc;
  --login-card-bg:         #ffffff;
  --login-card-border:     rgba(255, 255, 255, 0.7);
  --login-card-shadow:     0 8px 40px rgba(0, 0, 0, 0.10), 0 2px 12px rgba(0, 0, 0, 0.06);
  --login-title-color:     #1a202c;
  --login-subtitle-color:  #718096;
  --login-btn-bg:          #ffffff;
  --login-btn-border:      #e2e8f0;
  --login-btn-color:       #2d3748;
  --login-btn-hover-bg:    #f7fafc;
  --login-btn-hover-border:#b8c8d8;
  --login-btn-shadow:      0 1px 3px rgba(0, 0, 0, 0.06);
  --login-divider-color:   #e2e8f0;
  --login-footer-color:    #a0aec0;
  --login-footer-link:     #01577a;
}

/* --- Dark mode tokens --- */
@media (prefers-color-scheme: dark) {
  :root {
    --login-bg-start:        #0a1622;
    --login-bg-end:          #1a2d3e;
    --login-card-bg:         #1e2d3e;
    --login-card-border:     rgba(255, 255, 255, 0.06);
    --login-card-shadow:     0 8px 40px rgba(0, 0, 0, 0.50), 0 2px 12px rgba(0, 0, 0, 0.35);
    --login-title-color:     #f1f5f9;
    --login-subtitle-color:  #94a3b8;
    --login-btn-bg:          #243447;
    --login-btn-border:      #334f68;
    --login-btn-color:       #e2e8f0;
    --login-btn-hover-bg:    #2d4060;
    --login-btn-hover-border:#4a6680;
    --login-btn-shadow:      0 1px 3px rgba(0, 0, 0, 0.35);
    --login-divider-color:   #334155;
    --login-footer-color:    #64748b;
    --login-footer-link:     #048fb8;
  }
}

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

/* --- Page layout --- */
.login-body {
  min-height: 100vh;
  background: linear-gradient(155deg, var(--login-bg-start) 0%, var(--login-bg-end) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Fira Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  padding: 24px;
}

/* --- Card --- */
.login-card {
  background: var(--login-card-bg);
  border: 1px solid var(--login-card-border);
  border-radius: 20px;
  box-shadow: var(--login-card-shadow);
  padding: 44px 40px 36px;
  width: 100%;
  max-width: 390px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* --- Logo --- */
.login-logo {
  margin-bottom: 12px;
}

.login-logo-img {
  width: 200px;
  height: auto;
  display: block;
}

/* --- Subtitle --- */
.login-subtitle {
  font-size: 0.9rem;
  color: var(--login-subtitle-color);
  text-align: center;
  margin-bottom: 28px;
  letter-spacing: 0.01em;
}

/* --- Auth buttons --- */
.login-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.login-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  width: 100%;
  padding: 12px 18px;
  background: var(--login-btn-bg);
  border: 1px solid var(--login-btn-border);
  border-radius: 10px;
  box-shadow: var(--login-btn-shadow);
  color: var(--login-btn-color);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
  -webkit-tap-highlight-color: transparent;
}

.login-btn:hover {
  background: var(--login-btn-hover-bg);
  border-color: var(--login-btn-hover-border);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.10);
  text-decoration: none;
  color: var(--login-btn-color);
}

.login-btn:active {
  transform: translateY(1px);
}

.login-btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* --- Footer --- */
.login-footer {
  margin-top: 24px;
  font-size: 0.75rem;
  color: var(--login-footer-color);
  text-align: center;
  line-height: 1.6;
}

.login-footer a {
  color: var(--login-footer-link);
  text-decoration: none;
}

.login-footer a:hover {
  text-decoration: underline;
}

/* --- Error message (shown via ?error= query param) --- */
.login-error {
  width: 100%;
  padding: 10px 14px;
  margin-bottom: 20px;
  background: #fff5f5;
  border: 1px solid #fed7d7;
  border-radius: 8px;
  color: #c53030;
  font-size: 0.85rem;
  text-align: center;
}

@media (prefers-color-scheme: dark) {
  .login-error {
    background: #2d1515;
    border-color: #742020;
    color: #fc8181;
  }
}

/* --- Responsive --- */
@media (max-width: 480px) {
  .login-card {
    padding: 36px 28px 28px;
    border-radius: 16px;
  }

  .login-logo-img {
    width: 170px;
  }
}