/* ═══════════════════════════════════════
   auth.css — Login & Registration screen
   ═══════════════════════════════════════ */

#auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  position: relative;
  overflow: hidden;
}

/* Ruled paper texture */
#auth-screen::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 39px,
    rgba(200,151,58,0.04) 39px,
    rgba(200,151,58,0.04) 40px
  );
  pointer-events: none;
}

/* Screenplay footer slug */
#auth-screen::after {
  content: 'FADE IN:';
  position: absolute;
  bottom: 40px;
  left: 64px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(200,151,58,0.2);
  letter-spacing: 0.2em;
  pointer-events: none;
}

.auth-box {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  padding: 0 24px;
  animation: authFadeUp 0.5s ease both;
}

@keyframes authFadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── LOGO ── */
.auth-logo {
  text-align: center;
  margin-bottom: 48px;
}
.auth-logo .wordmark {
  font-family: var(--font-serif);
  font-size: 56px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--paper);
  line-height: 1;
}
.auth-logo .wordmark span { color: var(--gold); }
.auth-logo .tagline {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--parchment);
  opacity: 0.4;
  margin-top: 10px;
  text-transform: uppercase;
}

/* ── TABS ── */
.auth-tabs {
  display: flex;
  border-bottom: 1px solid rgba(200,151,58,0.15);
  margin-bottom: 32px;
}
.auth-tab {
  flex: 1;
  text-align: center;
  padding: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--parchment);
  opacity: 0.35;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: opacity 0.2s, border-color 0.2s, color 0.2s;
}
.auth-tab.active {
  opacity: 1;
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ── FIELDS ── */
.auth-field { margin-bottom: 16px; }
.auth-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--parchment);
  opacity: 0.45;
  margin-bottom: 6px;
}
.auth-field input {
  width: 100%;
  background: rgba(245,240,232,0.04);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 14px;
  color: var(--paper);
  outline: none;
  transition: border-color 0.2s, background 0.2s;
}
.auth-field input:focus {
  border-color: var(--gold);
  background: rgba(200,151,58,0.05);
}
.auth-field input::placeholder { color: rgba(245,240,232,0.2); }

/* ── BUTTON ── */
.auth-btn {
  width: 100%;
  padding: 14px;
  background: var(--gold);
  color: var(--ink);
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  margin-top: 8px;
  transition: background 0.2s, transform 0.1s;
}
.auth-btn:hover  { background: var(--gold-light); transform: translateY(-1px); }
.auth-btn:active { transform: translateY(0); }

/* ── ERROR & HINT ── */
.auth-error {
  color: #e74c3c;
  font-size: 12px;
  font-family: var(--font-mono);
  margin-top: 10px;
  text-align: center;
  min-height: 18px;
  letter-spacing: 0.05em;
}
.auth-demo-hint {
  text-align: center;
  margin-top: 28px;
  font-size: 10px;
  font-family: var(--font-mono);
  color: rgba(200,151,58,0.3);
  letter-spacing: 0.12em;
}