/* LIGHT & SHADOW — login screen (uses the design tokens from style.css) */
.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  padding: 24px 16px;
}

#bg-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.ui-sound {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 3;
}

.login-shell {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 440px;
}

.login-card {
  background: var(--panel-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--panel-border);
  border-radius: 22px;
  padding: 32px 30px 22px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  animation: card-rise 0.8s cubic-bezier(0.2, 0.9, 0.3, 1) both;
}

@keyframes card-rise {
  from { opacity: 0; transform: translateY(30px) scale(0.97); }
  to { opacity: 1; transform: none; }
}

.login-card.shake {
  animation: shake 0.42s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-10px); }
  40% { transform: translateX(9px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(4px); }
}

.login-card.success {
  animation: card-launch 0.75s ease forwards;
}

@keyframes card-launch {
  0% { transform: none; opacity: 1; filter: none; }
  30% { transform: scale(1.02); box-shadow: 0 0 80px rgba(255, 184, 48, 0.5), 0 0 140px rgba(157, 78, 221, 0.4); }
  100% { transform: scale(0.9) translateY(-20px); opacity: 0; filter: blur(8px); }
}

/* Brand */
.login-brand {
  text-align: center;
  margin-bottom: 22px;
}

.login-logo {
  font-size: 40px;
  animation: logo-float 4s ease-in-out infinite;
  filter: drop-shadow(0 0 16px var(--light-color));
}

@keyframes logo-float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-6px) rotate(8deg); }
}

.login-title {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: 3px;
  margin-top: 6px;
}

.t-light {
  color: var(--light-color);
  text-shadow: 0 0 18px var(--light-glow);
  animation: glow-light 3s ease-in-out infinite alternate;
}

.t-shadow {
  color: var(--shadow-color);
  text-shadow: 0 0 18px var(--shadow-glow);
  animation: glow-shadow 3s ease-in-out infinite alternate;
}

.t-amp {
  color: var(--text-muted);
}

@keyframes glow-light {
  to { text-shadow: 0 0 30px rgba(255, 184, 48, 0.7); }
}

@keyframes glow-shadow {
  to { text-shadow: 0 0 30px rgba(157, 78, 221, 0.8); }
}

.login-tagline {
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: 5px;
  color: var(--text-muted);
}

/* Continue panel */
.continue-panel {
  text-align: center;
  padding: 16px;
  margin-bottom: 18px;
  border-radius: 14px;
  background: rgba(0, 245, 212, 0.07);
  border: 1px solid rgba(0, 245, 212, 0.25);
  font-size: 14px;
}

.continue-panel strong {
  color: var(--accent-cyan);
}

.continue-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 12px;
  flex-wrap: wrap;
}

.hidden {
  display: none !important;
}

/* Tabs */
.auth-tabs {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 18px;
}

.auth-tab {
  position: relative;
  z-index: 1;
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-family);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 10px 0;
  cursor: pointer;
  transition: color 0.25s;
}

.auth-tab.active {
  color: #0b0d14;
}

.tab-indicator {
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 4px;
  width: calc(50% - 4px);
  border-radius: 9px;
  background: linear-gradient(135deg, var(--light-color), #ffd479);
  box-shadow: 0 4px 16px var(--light-glow);
  transition: transform 0.35s cubic-bezier(0.2, 0.9, 0.3, 1.1), background 0.35s;
}

.auth-tabs.register .tab-indicator {
  transform: translateX(100%);
  background: linear-gradient(135deg, var(--shadow-color), #c77dff);
  box-shadow: 0 4px 16px var(--shadow-glow);
}

.auth-tabs.register .auth-tab.active {
  color: #fff;
}

/* Form */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  animation: field-in 0.35s ease both;
}

@keyframes field-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

.field-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
}

.field input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(5, 6, 8, 0.6);
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field input:focus {
  border-color: var(--light-color);
  box-shadow: 0 0 0 3px rgba(255, 184, 48, 0.18), 0 0 18px rgba(255, 184, 48, 0.15);
}

.auth-tabs.register ~ .auth-form .field input:focus {
  border-color: var(--shadow-color);
  box-shadow: 0 0 0 3px rgba(157, 78, 221, 0.2), 0 0 18px rgba(157, 78, 221, 0.18);
}

.remember {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  cursor: pointer;
}

.remember input {
  accent-color: var(--light-color);
  width: 16px;
  height: 16px;
}

.auth-error {
  min-height: 18px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-red);
}

.submit-btn {
  width: 100%;
  justify-content: center;
  padding: 13px;
  font-size: 15px;
  position: relative;
  overflow: hidden;
}

.submit-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -60%;
  width: 40%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  animation: sheen 3.2s ease-in-out infinite;
}

@keyframes sheen {
  0%, 60% { left: -60%; }
  100% { left: 130%; }
}

.submit-btn:disabled {
  opacity: 0.6;
  cursor: wait;
}

/* Saved accounts */
.accounts-section {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.accounts-section h2 {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.account-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 210px;
  overflow-y: auto;
}

.account-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
  animation: field-in 0.35s ease both;
}

.account-chip:hover,
.account-chip:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-cyan);
  transform: translateX(3px);
  outline: none;
}

.account-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 800;
  color: #0b0d14;
  background: linear-gradient(135deg, var(--light-color), var(--shadow-color));
  flex-shrink: 0;
}

.account-info {
  flex: 1;
  min-width: 0;
}

.account-name {
  display: block;
  font-weight: 700;
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.account-meta {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
}

.account-meta .live {
  color: var(--accent-cyan);
}

.account-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  line-height: 1;
  padding: 4px 6px;
  border-radius: 6px;
  cursor: pointer;
}

.account-remove:hover {
  color: var(--accent-red);
  background: rgba(255, 0, 85, 0.1);
}

.login-note {
  margin-top: 18px;
  text-align: center;
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.5;
}

@media (max-width: 480px) {
  .login-card {
    padding: 26px 18px 18px;
  }

  .login-title {
    font-size: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .login-card, .login-logo, .t-light, .t-shadow, .submit-btn::after, .field, .account-chip {
    animation: none !important;
  }
}