/* ============================================
   NOXIDE — AUTH (LOGIN / REGISTER)
   ============================================ */

/* ── CANVAS BACKGROUND ── */
#auth-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 1;
  opacity: 0.05;
  pointer-events: none;
}

/* ── PAGE ── */
.auth-page {
  width: 100vw;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--black);
  position: relative;
  z-index: 2;
  padding: 40px 16px;
}

/* Radial vignette */
.auth-page::before {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 20%, rgba(0,0,0,0.82) 100%);
  z-index: 0;
  pointer-events: none;
}

/* ── CARD ── */
.auth-card {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 420px;
  background: var(--black-card);
  border: 1px solid var(--grey-dark);
  padding: 40px 40px 28px;
  animation: fadeIn 0.35s ease forwards;
}

/* Animated top accent */
.auth-card::before {
  content: '';
  position: absolute;
  top: 0; left: 10%;
  width: 80%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  opacity: 0.5;
}

/* Corner marks */
.auth-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 40px; height: 40px;
  border-left: 1px solid var(--green-dark);
  border-bottom: 1px solid var(--green-dark);
  opacity: 0.4;
}

/* ── LOGO ── */
.auth-logo {
  text-align: center;
  margin-bottom: 32px;
}

.auth-logo-text {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 900;
  letter-spacing: 0.3em;
  color: var(--white-bright);
  text-decoration: none;
  text-shadow: 0 0 30px rgba(0, 255, 65, 0.2);
  display: block;
  margin-bottom: 4px;
}

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

.auth-logo-sub {
  font-size: 0.62rem;
  color: var(--grey-muted);
  text-transform: uppercase;
  letter-spacing: 0.3em;
}

/* ── TAB SWITCHER ── */
.auth-tabs {
  display: flex;
  border: 1px solid var(--grey-dark);
  margin-bottom: 28px;
}

.auth-tab {
  flex: 1;
  padding: 11px;
  text-align: center;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey-text);
  cursor: pointer;
  transition: var(--transition);
  background: transparent;
  border: none;
  font-family: var(--font-mono);
}
.auth-tab:first-child {
  border-right: 1px solid var(--grey-dark);
}
.auth-tab.active {
  color: var(--green);
  background: var(--green-glow);
}
.auth-tab:hover:not(.active) {
  color: var(--white);
  background: rgba(255, 255, 255, 0.03);
}

/* ── FORM ── */
.auth-form {
  display: flex;
  flex-direction: column;
}

.auth-form .form-input {
  background: var(--black-light);
}

.auth-form-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.auth-form-subtitle {
  font-size: 0.73rem;
  color: var(--grey-text);
  margin-bottom: 24px;
}

/* ── REMEMBER / FORGOT ── */
.auth-remember {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  font-size: 0.75rem;
}

.auth-remember label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--grey-text);
  cursor: pointer;
}

.auth-remember input[type="checkbox"] {
  appearance: none;
  width: 14px; height: 14px;
  border: 1px solid var(--grey-mid);
  background: var(--black);
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}
.auth-remember input[type="checkbox"]:checked {
  background: var(--green);
  border-color: var(--green);
}
.auth-remember input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.6rem;
  color: var(--black);
  font-weight: bold;
}

.auth-forgot {
  font-size: 0.7rem;
  color: var(--grey-muted);
  transition: color 0.2s ease;
}
.auth-forgot:hover { color: var(--green); }

/* ── ERROR STATE ── */
.form-error {
  border-color: var(--red) !important;
}
.form-error-msg {
  font-size: 0.7rem;
  color: var(--red);
  margin-top: -4px;
  margin-bottom: 8px;
}

/* ── TERMS ── */
.auth-terms {
  font-size: 0.63rem;
  color: var(--grey-muted);
  text-align: center;
  margin-top: 16px;
  line-height: 1.8;
}
.auth-terms a {
  color: var(--grey-text);
  text-decoration: underline;
}

/* ── SESSION HASH ── */
.auth-hash {
  margin-top: 28px;
  text-align: center;
  font-size: 0.55rem;
  color: var(--grey-muted);
  font-family: var(--font-code);
  opacity: 0.4;
  letter-spacing: 0.05em;
}

/* ── GLOBAL ERROR ── */
.auth-global-error {
  background: rgba(255, 59, 48, 0.08);
  border: 1px solid rgba(255, 59, 48, 0.3);
  color: var(--red);
  font-size: 0.75rem;
  padding: 10px 14px;
  margin-bottom: 16px;
  display: none;
}

/* ── RESPONSIVE ── */
@media (max-width: 500px) {
  .auth-card { padding: 32px 24px 24px; }
}