/* ============================================================
   MARKUS PRO — Login / Register page
   ============================================================ */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-10) var(--container-pad);
  padding-top: calc(var(--nav-height) + var(--sp-10));
  background: var(--bg-primary);
  position: relative;
}

/* Subtle bg glow */
.auth-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 50% at 50% 40%, rgba(0,191,255,0.04) 0%, transparent 100%);
  pointer-events: none;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--sp-10) var(--sp-8);
  position: relative;
  z-index: 1;
}

.auth-logo {
  display: block;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-primary);
  text-decoration: none;
  margin-bottom: var(--sp-8);
}

.auth-logo span { color: var(--accent); }

.auth-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  line-height: 1;
  margin-bottom: var(--sp-2);
}

.auth-subtitle {
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin-bottom: var(--sp-8);
}

/* Form */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.auth-forgot {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  transition: color var(--transition-fast);
  align-self: flex-end;
  margin-top: calc(-1 * var(--sp-3));
  border: none;
  background: none;
}
.auth-forgot:hover { color: var(--text-secondary); }

/* Social login */
.auth-social {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
}

.btn-social {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 12px var(--sp-3);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: var(--text-xs);
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
  width: 100%;
}
.btn-social:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-strong);
  color: var(--text-primary);
}
.btn-social:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.social-icon {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

/* Social login divider */
.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin: var(--sp-6) 0;
  color: var(--text-muted);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
}

/* Auth toggle (sign in / register) */
.auth-toggle {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: var(--sp-4);
}

.auth-toggle a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}
.auth-toggle a:hover { color: var(--accent-hover); }

/* Password strength indicator */
.password-strength {
  display: flex;
  gap: 4px;
  margin-top: var(--sp-2);
}

.strength-bar {
  flex: 1;
  height: 3px;
  border-radius: 2px;
  background: var(--border-default);
  transition: background var(--transition-fast);
}
.strength-bar.active-weak   { background: var(--error); }
.strength-bar.active-medium { background: var(--warning); }
.strength-bar.active-strong { background: var(--success); }

/* Form tabs (login / register toggle) */
.auth-tabs {
  display: flex;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: var(--sp-8);
}

.auth-tab {
  flex: 1;
  padding: 10px;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  cursor: pointer;
  background: transparent;
  border: none;
  color: var(--text-muted);
  transition:
    background var(--transition-fast),
    color var(--transition-fast);
}

.auth-tab.is-active {
  background: var(--text-primary);
  color: var(--bg-primary);
}

/* Terms checkbox row */
.terms-row {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  margin-top: var(--sp-2);
}

.terms-text {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  line-height: 1.5;
}

.terms-text a {
  color: var(--accent);
  text-decoration: none;
}
.terms-text a:hover { text-decoration: underline; }