/* ==========================================================================
   Tagna Auth — Editorial theme (light + dark)
   Used by /Account/Login (and reused by Forgot/Reset later).
   ========================================================================== */

@font-face {
  font-family: 'EthnocentricRegular';
  src: url('/fonts/EthnocentricRg-Regular.woff2') format('woff2'),
       url('/fonts/EthnocentricRg-Regular.woff') format('woff'),
       url('/fonts/EthnocentricRg-Regular.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

/* ---------- TOKENS: LIGHT (default) ---------- */
.tagna-auth {
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 180ms cubic-bezier(.4,0,.2,1);
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-brand: 'EthnocentricRegular', monospace;

  --brand-bg: #0B0D10;
  --brand-glow-1: rgba(216,31,38,.55);
  --brand-glow-2: rgba(216,31,38,0);
  --brand-text: #FFFFFF;
  --brand-text-muted: #A1A1AA;
  --brand-divider: rgba(255,255,255,.08);

  --form-bg: #FFFFFF;
  --text: #0B0D10;
  --text-muted: #52525B;
  --input-bg: #F4F5F7;
  --input-border: #E4E4E7;
  --input-border-hover: #D4D4D8;
  --focus-ring: rgba(216,31,38,.30);
  --focus-border: #D81F26;

  --cta-from: #D81F26;
  --cta-to: #A8141A;
  --cta-from-hover: #E83843;
  --cta-to-hover: #C01620;

  --accent: #D81F26;
  --link: #D81F26;
  --error: #DC2626;
  --error-bg: #FEF2F2;
  --success: #16A34A;
  --divider: #E4E4E7;
}

/* ---------- TOKENS: DARK (auto via OS preference) ---------- */
@media (prefers-color-scheme: dark) {
  .tagna-auth {
    --brand-bg: #050608;
    --brand-glow-1: rgba(216,31,38,.45);

    --form-bg: #0B0D10;
    --text: #F5F5F7;
    --text-muted: #A1A1AA;
    --input-bg: #16181D;
    --input-border: #27272A;
    --input-border-hover: #3F3F46;
    --focus-ring: rgba(255,90,96,.30);
    --focus-border: #FF5A60;

    --accent: #FF5A60;
    --link: #FF5A60;
    --error: #F87171;
    --error-bg: rgba(248,113,113,.10);
    --success: #22C55E;
    --divider: #27272A;
  }
}

/* ---------- BASE ---------- */
html.tagna-auth-html, body.tagna-auth-body {
  height: 100%;
  margin: 0; padding: 0;
}
body.tagna-auth-body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--form-bg);
  -webkit-font-smoothing: antialiased;
}
.tagna-auth * { box-sizing: border-box; }
.tagna-auth a { color: var(--link); }

/* ---------- LAYOUT ---------- */
.tagna-auth__shell {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  min-height: 100vh;
}
@media (max-width: 900px) {
  .tagna-auth__shell { grid-template-columns: 1fr; }
}

/* ---------- BRAND PANE ---------- */
.tagna-auth__brand {
  position: relative;
  background: var(--brand-bg);
  color: var(--brand-text);
  padding: 48px 56px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  isolation: isolate;
}
.tagna-auth__brand::before {
  content: '';
  position: absolute; inset: -20%;
  background: radial-gradient(circle at 30% 35%, var(--brand-glow-1) 0%, var(--brand-glow-2) 55%);
  filter: blur(40px);
  animation: tagna-drift 18s ease-in-out infinite alternate;
  z-index: -1;
}
.tagna-auth__brand::after {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(circle at 50% 50%, black 30%, transparent 75%);
          mask-image: radial-gradient(circle at 50% 50%, black 30%, transparent 75%);
  z-index: -1; opacity: .6;
}
@keyframes tagna-drift {
  0%   { transform: translate(0,0) scale(1); }
  100% { transform: translate(40px,30px) scale(1.15); }
}
@media (prefers-reduced-motion: reduce) {
  .tagna-auth__brand::before { animation: none; }
}
@media (max-width: 900px) {
  .tagna-auth__brand { padding: 28px 24px; min-height: 180px; }
  .tagna-auth__hero, .tagna-auth__trust { display: none; }
}

/* ---- LOGO LOCKUP (matches user app spec) ---- */
.tagna-auth__logo {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 12px 24px;
  background: rgba(255,255,255,.92);
  border: 2px solid rgba(254,202,202,.9);
  border-radius: 999px;
  box-shadow: 0 16px 32px -12px rgba(0,0,0,.30), inset 0 1px 0 rgba(255,255,255,.8);
  align-self: flex-start;
  -webkit-backdrop-filter: blur(8px);
          backdrop-filter: blur(8px);
  transition: border-color var(--transition), transform var(--transition);
  text-decoration: none;
}
.tagna-auth__logo:hover {
  border-color: rgba(248,113,113,.9);
  transform: scale(1.02);
}
.tagna-auth__logo-mark { width: 48px; height: 48px; flex-shrink: 0; display: grid; place-items: center; }
.tagna-auth__logo-mark img { width: 100%; height: 100%; object-fit: contain; display: block; }
.tagna-auth__logo-text {
  font-family: var(--font-brand);
  font-size: 24px; font-weight: 700;
  letter-spacing: 0.1em;
  color: #DC2626;
  line-height: 1;
}
.tagna-auth__logo-tagline {
  display: block;
  font-family: var(--font-brand);
  font-size: 10px; font-weight: 500;
  letter-spacing: 0.08em;
  color: #374151;
  margin-top: 4px;
}

/* ---- HERO ---- */
.tagna-auth__hero h1 {
  font-size: 44px; line-height: 1.1; margin: 0 0 16px;
  font-weight: 700; letter-spacing: -.02em;
  max-width: 440px;
}
.tagna-auth__hero p {
  color: var(--brand-text-muted);
  font-size: 16px; line-height: 1.55;
  max-width: 380px; margin: 0 0 32px;
}
.tagna-auth__bullets {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 12px;
}
.tagna-auth__bullets li {
  display: flex; align-items: center; gap: 12px;
  color: var(--brand-text); font-size: 14px;
}
.tagna-auth__bullets svg {
  flex-shrink: 0; width: 20px; height: 20px;
  padding: 4px; border-radius: 6px;
  background: rgba(255,255,255,.10);
  border: 1px solid var(--brand-divider);
}

/* ---- TRUST FOOTNOTE ---- */
.tagna-auth__trust {
  display: flex; align-items: center; gap: 16px;
  color: var(--brand-text-muted);
  font-size: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--brand-divider);
}
.tagna-auth__trust strong { color: var(--brand-text); font-weight: 500; }

/* ---------- FORM PANE ---------- */
.tagna-auth__form-pane {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 56px 32px;
  background: var(--form-bg);
  color: var(--text);
}
.tagna-auth__card { width: 100%; max-width: 420px; }
.tagna-auth__card-header { margin-bottom: 32px; }
.tagna-auth__card-header h2 {
  font-size: 28px; line-height: 1.2; margin: 0 0 6px;
  font-weight: 600; letter-spacing: -.01em;
  color: var(--text);
}
.tagna-auth__card-header p {
  color: var(--text-muted); font-size: 14px; margin: 0;
}

/* ---- ALERT ---- */
.tagna-auth__alert {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--error-bg);
  border-left: 3px solid var(--error);
  color: var(--error);
  font-size: 13px; line-height: 1.45;
  margin-bottom: 20px;
}
.tagna-auth__alert svg { flex-shrink: 0; margin-top: 1px; }
.tagna-auth__alert--success {
  background: rgba(22,163,74,.08);
  border-left-color: var(--success);
  color: var(--success);
}

/* ---- VALIDATION SUMMARY (server-side) ---- */
.tagna-auth__validation { margin-bottom: 16px; }
.tagna-auth__validation ul {
  margin: 0; padding-left: 20px;
  color: var(--error); font-size: 13px;
}
.tagna-auth__validation:empty { display: none; }

/* ---- FIELDS ---- */
.tagna-auth__field { margin-bottom: 16px; position: relative; }
.tagna-auth__field label {
  display: block; font-size: 13px; font-weight: 500;
  color: var(--text); margin-bottom: 6px;
}
.tagna-auth__input-wrap { position: relative; }
.tagna-auth__field input[type="text"],
.tagna-auth__field input[type="email"],
.tagna-auth__field input[type="password"] {
  width: 100%; height: 46px;
  padding: 0 14px;
  font: inherit; font-size: 14px;
  color: var(--text);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.tagna-auth__field input::placeholder { color: var(--text-muted); opacity: .7; }
.tagna-auth__field input:hover { border-color: var(--input-border-hover); }
.tagna-auth__field input:focus {
  border-color: var(--focus-border);
  box-shadow: 0 0 0 4px var(--focus-ring);
  background: var(--form-bg);
}
.tagna-auth__field-error {
  display: block; font-size: 12px; color: var(--error);
  margin-top: 6px; min-height: 16px;
}
.tagna-auth__field-error:empty { display: none; }

.tagna-auth__pw-toggle {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  width: 32px; height: 32px;
  border: 0; background: transparent; cursor: pointer;
  color: var(--text-muted);
  border-radius: 6px;
  display: grid; place-items: center;
  transition: color var(--transition), background var(--transition);
}
.tagna-auth__pw-toggle:hover { color: var(--text); background: var(--input-border); }

.tagna-auth__caps {
  display: none; align-items: center; gap: 6px;
  margin-top: 6px; font-size: 12px; color: var(--text-muted);
}
.tagna-auth__caps.is-on { display: inline-flex; }
.tagna-auth__caps::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: #F59E0B;
}

/* ---- OTP INPUT ---- */
.tagna-auth__field input.tagna-auth__otp {
  height: 60px;
  text-align: center;
  font-family: 'Menlo', 'Consolas', monospace;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: 0.5em;
  text-indent: 0.5em;          /* compensates for letter-spacing on the last char */
  padding: 0 14px;
}
.tagna-auth__resend {
  text-align: center;
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-muted);
}
.tagna-auth__resend button {
  background: none; border: 0; padding: 0;
  font: inherit; font-weight: 600;
  color: var(--link); cursor: pointer;
}
.tagna-auth__resend button[disabled] {
  color: var(--text-muted); cursor: not-allowed;
}
.tagna-auth__resend button:not([disabled]):hover { text-decoration: underline; }

.tagna-auth__field-help {
  display: block; font-size: 12px; color: var(--text-muted);
  margin-top: 6px;
}

/* ---- BACK LINK ---- */
.tagna-auth__back {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 500;
  color: var(--link); text-decoration: none;
  margin-top: 24px;
}
.tagna-auth__back:hover { text-decoration: underline; }
.tagna-auth__back svg { width: 14px; height: 14px; }

/* ---- ROW: REMEMBER + FORGOT ---- */
.tagna-auth__row {
  display: flex; align-items: center; justify-content: space-between;
  margin: 6px 0 22px;
}
.tagna-auth__check {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--text); cursor: pointer;
  -webkit-user-select: none;
          user-select: none;
}
.tagna-auth__check input { display: none; }
.tagna-auth__check-mark {
  width: 18px; height: 18px;
  border: 1.5px solid var(--input-border);
  border-radius: 5px;
  display: grid; place-items: center;
  transition: all var(--transition);
  background: var(--input-bg);
}
.tagna-auth__check input:checked + .tagna-auth__check-mark {
  background: var(--accent); border-color: var(--accent);
}
.tagna-auth__check-mark svg { stroke: white; opacity: 0; transition: opacity var(--transition); }
.tagna-auth__check input:checked + .tagna-auth__check-mark svg { opacity: 1; }

.tagna-auth__link-forgot {
  font-size: 13px; color: var(--link); text-decoration: none; font-weight: 500;
}
.tagna-auth__link-forgot:hover { text-decoration: underline; }

/* ---- PRIMARY CTA ---- */
.tagna-auth__btn-primary {
  width: 100%; height: 48px;
  border: 0; cursor: pointer;
  font: inherit; font-size: 15px; font-weight: 600;
  color: white;
  background: linear-gradient(135deg, var(--cta-from) 0%, var(--cta-to) 100%);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 14px -4px rgba(0,0,0,.25), inset 0 1px 0 rgba(255,255,255,.1);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
}
.tagna-auth__btn-primary:hover {
  background: linear-gradient(135deg, var(--cta-from-hover) 0%, var(--cta-to-hover) 100%);
  box-shadow: 0 6px 20px -4px rgba(0,0,0,.3), inset 0 1px 0 rgba(255,255,255,.15);
  transform: translateY(-1px);
}
.tagna-auth__btn-primary:active { transform: translateY(0); }
.tagna-auth__btn-primary[disabled] { opacity: .7; cursor: not-allowed; }

/* ---- DIVIDER ---- */
.tagna-auth__divider {
  display: flex; align-items: center; gap: 12px;
  margin: 24px 0;
  color: var(--text-muted); font-size: 12px;
  text-transform: uppercase; letter-spacing: .08em;
}
.tagna-auth__divider::before, .tagna-auth__divider::after {
  content: ''; flex: 1; height: 1px; background: var(--divider);
}

/* ---- SECONDARY (external providers) ---- */
.tagna-auth__btn-secondary {
  width: 100%; height: 46px;
  font: inherit; font-size: 14px; font-weight: 500;
  color: var(--text);
  background: var(--form-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  transition: border-color var(--transition), background var(--transition);
}
.tagna-auth__btn-secondary:hover {
  border-color: var(--input-border-hover);
  background: var(--input-bg);
}
.tagna-auth__sso-row { display: grid; grid-auto-columns: 1fr; grid-auto-flow: column; gap: 10px; }

/* ---- BOTTOM ---- */
.tagna-auth__signup {
  margin-top: 28px; padding-top: 24px;
  border-top: 1px solid var(--divider);
  text-align: center; font-size: 14px; color: var(--text-muted);
}
.tagna-auth__signup a {
  color: var(--link); font-weight: 600; text-decoration: none; margin-left: 4px;
}
.tagna-auth__signup a:hover { text-decoration: underline; }

.tagna-auth__legal {
  text-align: center;
  margin-top: 24px;
  font-size: 11px; color: var(--text-muted);
  max-width: 360px; margin-inline: auto;
}
.tagna-auth__legal a { color: var(--text-muted); text-decoration: underline; }

/* ---- FOCUS-VISIBLE for keyboard users ---- */
.tagna-auth :focus-visible {
  outline: 2px solid var(--focus-border);
  outline-offset: 2px;
}
.tagna-auth__field input:focus-visible { outline: none; }