/* ==========================================================================
   Student Verse — Login Screen
   ========================================================================== */

body.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(900px 500px at 20% 0%, rgba(140, 90, 255, 0.18), transparent 60%),
    var(--bg);
  padding: var(--space-5);
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-7) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  justify-content: center;
}

.login-heading {
  text-align: center;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  margin: 0;
}

.login-subheading {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin: -12px 0 0;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.field-group label {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
}

.field-group input {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  font-family: var(--font-ui);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.field-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}

.login-submit {
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-pill);
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-contrast);
  font-weight: 800;
  font-size: 14px;
  cursor: pointer;
  box-shadow: var(--glow);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.login-submit:hover { transform: translateY(-1px); }
.login-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.login-error {
  font-size: 13px;
  color: var(--danger);
  text-align: center;
  min-height: 18px;
}

.login-note {
  text-align: center;
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

.login-theme-switcher {
  display: flex;
  justify-content: center;
}