/**
 * Login page – matches admin dark theme (neon green, dark cards).
 * Used with shader-lines background.
 */
.login-page {
  --adm-bg: #0f0f0f;
  --adm-card: #1a1a1a;
  --adm-card-border: rgba(255, 255, 255, 0.08);
  --adm-input-bg: #222;
  --adm-input-border: #404040;
  --adm-muted: #9ca3af;
  --adm-text: #f3f4f6;
  --adm-accent: #22c55e;
  --adm-accent-hover: #4ade80;
  --adm-error: #ef4444;
}

.login-page {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, sans-serif;
  color: var(--adm-text);
  background: var(--adm-bg);
  position: relative;
  overflow-x: hidden;
}

#login-shader-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

#login-shader-bg canvas {
  pointer-events: none;
}

.login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.45);
  z-index: 0.5;
  pointer-events: none;
}

.login-center {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  box-sizing: border-box;
}

.login-stack {
  width: 100%;
  max-width: 22rem;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1.25rem;
}

.login-brand-card {
  background: var(--adm-card);
  border: 1px solid var(--adm-card-border);
  border-radius: 12px;
  padding: 1.5rem 1.75rem;
  text-align: center;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.login-brand-card .brand-logo-img {
  width: 3rem;
  height: 3rem;
  border-radius: 10px;
  object-fit: cover;
  margin-bottom: 0.75rem;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.login-brand-card .brand-initial {
  width: 3rem;
  height: 3rem;
  border-radius: 10px;
  background: var(--adm-accent);
  color: var(--adm-bg);
  font-weight: 800;
  font-size: 1.35rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.75rem;
}

.login-brand-card .brand-name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--adm-text);
  margin: 0;
  letter-spacing: -0.02em;
}

.login-card {
  background: var(--adm-card);
  border: 1px solid var(--adm-card-border);
  border-radius: 12px;
  padding: 1.75rem 1.75rem;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.login-card h2 {
  margin: 0 0 1.25rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--adm-text);
}

.login-page .form-group {
  margin-bottom: 1rem;
}

.login-page .label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--adm-muted);
}

.login-page .input {
  display: block;
  width: 100%;
  box-sizing: border-box;
  padding: 0.6rem 0.85rem;
  font-size: 1rem;
  color: var(--adm-text);
  background: var(--adm-input-bg);
  border: 1px solid var(--adm-input-border);
  border-radius: 8px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.login-page .input::placeholder {
  color: var(--adm-muted);
  opacity: 0.7;
}

.login-page .input:focus {
  outline: none;
  border-color: var(--adm-accent);
  box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.2);
}

.login-page .btn-primary {
  width: 100%;
  padding: 0.65rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--adm-accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  margin-top: 0.25rem;
}

.login-page .btn-primary:hover {
  background: var(--adm-accent-hover);
}

.login-page .btn-primary:active {
  transform: scale(0.99);
}

.login-page .login-error {
  color: var(--adm-error);
  font-size: 0.9rem;
  margin-bottom: 1rem;
  padding: 0.5rem 0.75rem;
  background: rgba(239, 68, 68, 0.1);
  border-radius: 6px;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.login-page .login-error:empty {
  display: none;
}