/* ─── SSSD Design System ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #07090f;
  --card:        #0e1117;
  --card-2:      #161b25;
  --border:      #1e2534;
  --border-2:    #2a3347;

  --primary:     #4f87ff;
  --primary-h:   #3a6ee0;
  --primary-dim: rgba(79,135,255,0.1);
  --primary-glow:rgba(79,135,255,0.18);

  --success:  #22c55e;  --success-bg: rgba(34,197,94,0.07);  --success-b: rgba(34,197,94,0.25);
  --error:    #f56565;  --error-bg:   rgba(245,101,101,0.07); --error-b:   rgba(245,101,101,0.25);
  --warn:     #f59e0b;  --warn-bg:    rgba(245,158,11,0.07);  --warn-b:    rgba(245,158,11,0.25);
  --info:     #4f87ff;  --info-bg:    rgba(79,135,255,0.07);  --info-b:    rgba(79,135,255,0.25);

  --t1: #f0f4f8;
  --t2: #8fa3bf;
  --t3: #4a5a70;

  --radius: 10px;
  --radius-sm: 7px;
}

/* ── Page shell ── */
body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 70% 35% at 50% -5%, rgba(79,135,255,0.12), transparent);
  color: var(--t2);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 48px 16px 80px;
  -webkit-font-smoothing: antialiased;
}

/* ── Brand header ── */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 36px;
  text-decoration: none;
}
.brand-icon {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, #4f87ff 0%, #7c3aed 100%);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; flex-shrink: 0;
  box-shadow: 0 0 16px rgba(79,135,255,0.35);
}
.brand-name {
  font-size: 0.95rem; font-weight: 700;
  color: var(--t1); letter-spacing: 0.2px;
}
.brand-name span { color: var(--primary); }

/* ── Progress stepper ── */
.progress {
  display: flex; align-items: center;
  margin-bottom: 28px; gap: 0;
}
.step-dot { display: flex; flex-direction: column; align-items: center; gap: 5px; }
.step-dot .circle {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--border-2);
  background: var(--card);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.68rem; font-weight: 700;
  color: var(--t3); transition: all 0.25s ease;
}
.step-dot .dot-lbl {
  font-size: 0.6rem; color: var(--t3);
  white-space: nowrap; transition: color 0.25s;
}
.step-dot.active .circle { border-color: var(--primary); background: var(--primary-dim); color: var(--primary); }
.step-dot.active .dot-lbl { color: var(--primary); }
.step-dot.done .circle   { border-color: var(--success); background: rgba(34,197,94,0.08); color: var(--success); }
.step-dot.done .dot-lbl  { color: var(--success); }
.step-con {
  width: 36px; height: 1.5px;
  background: var(--border-2);
  margin-bottom: 20px; transition: background 0.25s;
}
.step-con.done { background: var(--success); }

/* ── Card ── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 28px;
  width: 100%; max-width: 400px;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.02) inset,
    0 24px 48px rgba(0,0,0,0.5);
}

/* ── Card head ── */
.card-head { margin-bottom: 24px; }
.card-eyebrow {
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em;
  color: var(--primary); text-transform: uppercase; margin-bottom: 6px;
}
.card-title {
  font-size: 1.25rem; font-weight: 700;
  color: var(--t1); margin-bottom: 4px; line-height: 1.3;
}
.card-sub { font-size: 0.83rem; color: var(--t2); line-height: 1.55; }

/* ── Fields ── */
.field { margin-bottom: 14px; }
.field > label {
  display: block;
  font-size: 0.78rem; font-weight: 500;
  color: var(--t2); margin-bottom: 6px;
}
.field-hint { font-size: 0.72rem; color: var(--t3); margin-top: 4px; }
.input-wrap { position: relative; }
.input-wrap .eye {
  position: absolute; right: 11px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; color: var(--t3);
  padding: 2px 4px; display: flex; align-items: center;
  transition: color 0.15s; width: auto; margin: 0;
  font-size: 0.75rem; font-weight: 500;
}
.input-wrap .eye:hover { color: var(--t2); background: none; }
.input-wrap input { padding-right: 54px; }

input, textarea {
  width: 100%; padding: 9px 13px;
  background: rgba(10,12,20,0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--t1);
  font-size: 0.88rem; font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}
input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-dim);
}
input::placeholder { color: var(--t3); }

/* ── Buttons ── */
.btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem; font-family: inherit; font-weight: 600;
  cursor: pointer; transition: all 0.18s;
  border: 1px solid transparent; text-decoration: none;
  letter-spacing: 0.01em;
}
.btn + .btn { margin-top: 8px; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; margin-top: 18px; }
.btn-primary:hover:not(:disabled) { background: var(--primary-h); border-color: var(--primary-h); box-shadow: 0 0 16px var(--primary-glow); }
.btn-ghost   { background: var(--card-2); border-color: var(--border-2); color: var(--t2); margin-top: 8px; }
.btn-ghost:hover:not(:disabled)   { border-color: var(--primary); color: var(--t1); background: var(--primary-dim); }
.btn-back    { background: transparent; border-color: var(--border); color: var(--t3); margin-top: 6px; font-size: 0.82rem; }
.btn-back:hover:not(:disabled)    { color: var(--t2); border-color: var(--border-2); background: transparent; }
.btn-google  { background: #fff; border-color: #e0e5ee; color: #111; margin-top: 8px; }
.btn-google:hover:not(:disabled)  { background: #f5f7fa; }
.btn-github  { background: #1c1f26; border-color: var(--border-2); color: var(--t1); margin-top: 8px; }
.btn-github:hover:not(:disabled)  { background: #262b36; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ── Divider ── */
.or-divider {
  display: flex; align-items: center; gap: 12px;
  margin: 18px 0 4px; color: var(--t3); font-size: 0.72rem;
}
.or-divider::before, .or-divider::after { content:''; flex:1; height:1px; background: var(--border); }

/* ── Alerts ── */
.alert {
  padding: 11px 13px; border-radius: var(--radius-sm);
  font-size: 0.81rem; line-height: 1.55;
  display: none; margin-top: 14px;
  border: 1px solid transparent;
}
.alert.show    { display: flex; align-items: flex-start; gap: 8px; }
.alert-icon    { flex-shrink: 0; margin-top: 1px; }
.alert-text    { flex: 1; }
.alert.success { background: var(--success-bg); border-color: var(--success-b); color: var(--success); }
.alert.error   { background: var(--error-bg);   border-color: var(--error-b);   color: var(--error); }
.alert.warn    { background: var(--warn-bg);     border-color: var(--warn-b);    color: var(--warn); }
.alert.info    { background: var(--info-bg);     border-color: var(--info-b);    color: var(--info); }

/* ── CAPTCHA ── */
.captcha-wrap { display: none; margin-top: 14px; }
.captcha-wrap.show { display: block; }
.captcha-notice {
  font-size: 0.77rem; color: var(--warn);
  padding: 8px 11px; background: var(--warn-bg);
  border-radius: 6px; border-left: 3px solid var(--warn);
  margin-bottom: 10px; line-height: 1.45;
}

/* ── Card footer ── */
.card-footer {
  margin-top: 20px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.card-footer p { font-size: 0.8rem; color: var(--t3); }
.card-footer a { color: var(--primary); text-decoration: none; font-weight: 500; }
.card-footer a:hover { text-decoration: underline; }

/* ── Method tiles (2FA) ── */
.method-grid { display: flex; flex-direction: column; gap: 7px; margin-top: 4px; }
.method-tile {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 10px; padding: 13px 14px;
  text-align: left; cursor: pointer;
  transition: border-color 0.18s, background 0.18s;
  width: 100%; margin-top: 0;
  display: flex; align-items: center; gap: 12px;
}
.method-tile:hover:not(:disabled) { border-color: var(--primary); background: var(--primary-dim); }
.method-tile:disabled { opacity: 0.45; cursor: not-allowed; }
.tile-icon { font-size: 1.2rem; flex-shrink: 0; width: 24px; text-align: center; }
.tile-text  {}
.tile-title { font-size: 0.87rem; font-weight: 600; color: var(--t1); }
.tile-desc  { font-size: 0.73rem; color: var(--t2); margin-top: 2px; }

/* ── Misc ── */
.step    { display: none; }
.step.on { display: block; }
.view    { display: none; }
.view.on { display: block; }

#qr-img {
  display: none; max-width: 170px; margin: 14px auto 0;
  border-radius: 10px; border: 3px solid var(--border-2);
}
.codes-grid {
  margin-top: 12px; background: rgba(10,12,20,0.8);
  border: 1px solid var(--border-2); border-radius: 8px;
  padding: 14px; display: grid; grid-template-columns: 1fr 1fr;
  gap: 8px; font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.78rem; color: var(--t1); line-height: 1.6;
}
.codes-grid span { color: var(--t2); transition: color 0.15s; }
.codes-grid span:hover { color: var(--t1); }

/* ── Responsive ── */
@media (max-width: 480px) {
  body { padding: 32px 12px 60px; }
  .card { padding: 24px 20px; border-radius: 12px; }
}