/* ============================================================
   auth.css — Login & Register page styles
   The Quiet Post
   ============================================================ */

.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: transparent;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

/* ── Card ──────────────────────────────────────────────────── */
.auth-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 408px;
  background: var(--c-auth-card-bg);
  border-radius: var(--r-xl);
  padding: 52px 48px 44px;
}

.fly-away {
  animation: flyAway 800ms cubic-bezier(.34, 1.56, .64, 1) forwards;
}

@keyframes flyAway {
  0% { transform: translateY(0) scale(1); opacity: 1; }
  30% { transform: translateY(20px) scale(0.98); opacity: 1; }
  100% { transform: translateY(-100vh) scale(0.8) rotateZ(5deg); opacity: 0; }
}

/* ── Logo / Brand ───────────────────────────────────────────── */
.auth-logo {
  text-align: center;
  margin-bottom: 44px;
}

.auth-envelope-icon {
  width: 52px;
  height: auto;
  color: var(--c-text);
  margin-bottom: 22px;
}

.auth-title {
  font-family: var(--font-serif);
  font-size: 2.6rem;
  font-weight: 400;
  color: var(--c-text);
  letter-spacing: .03em;
  line-height: 1.15;
  margin-bottom: 10px;
}

.auth-tagline {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--c-text-dim);
  letter-spacing: 0.02em;
}

/* ── Form ───────────────────────────────────────────────────── */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.form-group {
  margin-bottom: 26px;
  position: relative;
}

.form-group label {
  display: block;
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-text-dim);
  margin-bottom: 10px;
}

.form-group input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--c-border-sub);
  padding: 10px 0 10px;
  color: var(--c-text);
  font-size: 1rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--t) var(--ease), color var(--t);
  caret-color: var(--c-gold);
}

.form-group input:focus {
  border-bottom-color: var(--c-gold);
  color: var(--c-text);
}

.form-group input::placeholder {
  color: var(--c-text-faint);
  font-style: italic;
}

/* ── Errors ─────────────────────────────────────────────────── */
.auth-error {
  min-height: 20px;
  color: #e08080;
  font-size: .8rem;
  margin-bottom: 14px;
  text-align: center;
  opacity: 0;
  transition: opacity var(--t);
}

.auth-error:not(:empty) {
  opacity: 1;
}

/* ── Seal Button ────────────────────────────────────────────── */
.btn-seal {
  width: 56px;
  height: 56px;
  margin: 20px auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #111111;
  color: #ffffff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-family: var(--font-sans);
  transition:
    background var(--t) var(--ease),
    transform var(--t) var(--ease-spring);
  position: relative;
  overflow: hidden;
}

.btn-seal::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.12) 0%, transparent 60%);
  pointer-events: none;
}

.btn-seal:hover {
  background: var(--c-gold-lit);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.btn-seal:active  { transform: translateY(0); }
.btn-seal:disabled { opacity: .55; cursor: not-allowed; transform: none; box-shadow: none; }

/* ── Register link ──────────────────────────────────────────── */
.auth-register-link {
  text-align: center;
  margin-top: 30px;
  font-size: .8rem;
  color: var(--c-text-faint);
}

.auth-register-link a {
  color: var(--c-text-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t), border-color var(--t);
}

.auth-register-link a:hover {
  color: var(--c-gold);
  border-bottom-color: var(--c-gold-dim);
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 480px) {
  .auth-card { padding: 40px 28px 36px; }
  .auth-title { font-size: 2.1rem; }
}