:root {
  --bg: #0d1117;
  --panel: rgba(22, 27, 34, 0.92);
  --panel-2: rgba(15, 20, 26, 0.92);
  --border: rgba(240, 246, 252, 0.1);
  --text: #e6edf3;
  --muted: #9da7b3;
  --accent: #2f81f7;
  --accent-2: #1f6feb;
  --success: #238636;
  --danger: #da3633;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: radial-gradient(circle at top, rgba(47,129,247,.10), transparent 30%), var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, sans-serif; }
a { color: inherit; text-decoration: none; }
body { min-height: 100vh; }
pre { white-space: pre-wrap; }
.shell { width: min(1200px, calc(100% - 24px)); margin: 24px auto 48px; }
.center-shell { min-height: calc(100vh - 80px); display: grid; place-items: center; padding: 24px; }
.topbar { position: sticky; top: 0; z-index: 20; display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; background: rgba(13,17,23,.78); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.brand-wrap { display: flex; gap: 12px; align-items: center; }
.brand-mark { width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center; background: linear-gradient(135deg, var(--accent), #7c3aed); box-shadow: var(--shadow); }
.brand-title { font-weight: 700; }
.brand-sub { margin: 2px 0 0; font-size: 12px; color: var(--muted); }
.nav-links { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.nav-link { padding: 10px 14px; border-radius: 12px; color: var(--muted); }
.nav-link.active, .nav-link:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.panel { background: linear-gradient(180deg, rgba(22,27,34,.94), rgba(15,20,26,.96)); border: 1px solid var(--border); border-radius: 24px; box-shadow: var(--shadow); }
.hero-shell { padding-top: 32px; }
.hero-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 20px; }
.hero-card, .preview-card, .auth-card, .detail-panel, .inbox-panel { padding: 28px; }
.eyebrow, .status-badge { display: inline-flex; padding: 7px 11px; border-radius: 999px; background: rgba(47,129,247,.14); color: #9cc0ff; font-size: 12px; letter-spacing: .04em; text-transform: uppercase; }
.hero-card h1, .auth-card h1, .detail-panel h1 { font-size: clamp(32px, 4.6vw, 54px); line-height: 1.02; margin: 18px 0; }
.detail-panel h1 { font-size: clamp(26px, 3vw, 40px); }
.muted { color: var(--muted); }
.hero-actions, .pagination { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.feature-list { margin: 18px 0 0; padding-left: 18px; color: var(--muted); display: grid; gap: 8px; }
.stat-grid, .stat-strip { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.stat-card { background: rgba(255,255,255,.03); border: 1px solid var(--border); border-radius: 18px; padding: 16px; display: grid; gap: 8px; }
.stat-card span { color: var(--muted); font-size: 13px; }
.stat-card strong { font-size: 26px; }
.btn { border: 0; cursor: pointer; border-radius: 14px; padding: 12px 16px; font-weight: 700; transition: .18s ease; display: inline-flex; align-items: center; justify-content: center; }
.btn.primary { color: white; background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.btn.soft { background: rgba(255,255,255,.05); color: var(--text); border: 1px solid var(--border); }
.btn.ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn:hover { transform: translateY(-1px); }
.form-grid { display: grid; gap: 16px; }
.form-grid.compact { gap: 12px; }
label { display: grid; gap: 8px; }
label span { color: var(--muted); font-size: 14px; }
input, select, textarea { width: 100%; background: #0b1220; color: var(--text); border: 1px solid rgba(255,255,255,.08); border-radius: 14px; padding: 14px 15px; outline: none; }
input:focus, select:focus, textarea:focus { border-color: rgba(47,129,247,.6); box-shadow: 0 0 0 4px rgba(47,129,247,.12); }
.auth-card, .narrow { width: min(520px, calc(100vw - 24px)); }
.dashboard-shell { display: grid; gap: 18px; }
.filter-bar { display: grid; grid-template-columns: 1.4fr .9fr .8fr auto; gap: 12px; margin-bottom: 16px; }
.mail-list { display: grid; gap: 10px; }
.mail-row { display: flex; justify-content: space-between; gap: 16px; padding: 16px; border-radius: 16px; border: 1px solid var(--border); background: rgba(255,255,255,.02); }
.mail-row.unread { border-color: rgba(47,129,247,.45); background: rgba(47,129,247,.06); }
.mail-row p { margin: 6px 0 0; color: var(--muted); }
.mail-meta { display: grid; gap: 6px; text-align: right; color: var(--muted); font-size: 13px; }
.empty-state { padding: 30px; border: 1px dashed var(--border); border-radius: 18px; text-align: center; color: var(--muted); }
.detail-head { display: flex; justify-content: space-between; gap: 16px; align-items: start; margin-bottom: 18px; }
.mail-body { background: rgba(255,255,255,.03); border: 1px solid var(--border); border-radius: 18px; padding: 18px; margin-bottom: 24px; overflow: auto; }
.attachment-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.attachment-card, .list-row { border: 1px solid var(--border); background: rgba(255,255,255,.03); border-radius: 16px; padding: 14px; display: grid; gap: 6px; }
.admin-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.stack-list { display: grid; gap: 10px; max-height: 420px; overflow: auto; }
.logs .list-row { font-size: 13px; }
.toast-root { position: fixed; right: 18px; bottom: 18px; display: grid; gap: 10px; z-index: 60; }
.toast { min-width: 260px; max-width: 380px; padding: 14px 16px; border-radius: 14px; box-shadow: var(--shadow); border: 1px solid var(--border); background: rgba(22,27,34,.96); animation: slideUp .25s ease; }
.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
@keyframes slideUp { from { transform: translateY(10px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@media (max-width: 920px) {
  .hero-grid, .admin-grid { grid-template-columns: 1fr; }
  .filter-bar { grid-template-columns: 1fr; }
  .detail-head, .mail-row { flex-direction: column; }
  .mail-meta { text-align: left; }
}

/* ═══════════════════════════════════════════════════════════════════
   CREDITS SYSTEM & GENERATED MAILBOXES  — additions
   ═══════════════════════════════════════════════════════════════════ */

/* ── Navbar credits badge ─────────────────────────────────────── */
.credits-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background: var(--accent, #238636);
  color: #fff;
  border-radius: 9999px;
  padding: 1px 8px;
  font-size: 0.72rem;
  font-weight: 600;
  margin-left: 6px;
  letter-spacing: 0.02em;
}

/* ── Generate panel ───────────────────────────────────────────── */
.generate-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.generate-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
}
.credits-block {
  display: flex;
  align-items: center;
}
.credits-display {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(35,134,54,.12);
  border: 1px solid rgba(35,134,54,.35);
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 1.1rem;
}
.credits-icon { font-size: 1.3rem; }
.generate-form { display: flex; }
.generate-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  padding: 10px 22px;
}
.cost-badge {
  font-size: 0.75rem;
  background: rgba(255,255,255,.18);
  border-radius: 6px;
  padding: 2px 7px;
}
.alert-no-credits {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(210,130,0,.1);
  border: 1px solid rgba(210,130,0,.35);
  border-radius: 8px;
  padding: 12px 16px;
  color: #b98900;
  font-size: 0.9rem;
}

/* ── Generated mailbox cards ──────────────────────────────────── */
.generated-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
  margin-top: 0.5rem;
}
.generated-card {
  background: var(--bg-card, #161b22);
  border: 1px solid var(--border, #30363d);
  border-radius: 10px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color .15s;
}
.generated-card:hover { border-color: var(--accent, #238636); }
.generated-card-header { display: flex; flex-direction: column; gap: 6px; }
.generated-address {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.address-icon { font-size: 1.1rem; }
.address-text {
  font-size: 0.95rem;
  word-break: break-all;
  flex: 1;
}
.btn-copy {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  padding: 2px 4px;
  border-radius: 4px;
  transition: background .1s;
  color: inherit;
}
.btn-copy:hover { background: rgba(255,255,255,.08); }
.generated-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.badge-unread {
  font-size: 0.78rem;
  border-radius: 6px;
  padding: 2px 8px;
  background: rgba(255,255,255,.06);
  border: 1px solid var(--border, #30363d);
}
.badge-unread.has-unread {
  background: rgba(248,81,73,.1);
  border-color: rgba(248,81,73,.4);
  color: #f85149;
}
.created-at { font-size: 0.75rem; }
.generated-card-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.btn-sm { padding: 5px 12px; font-size: 0.8rem; }

/* ── How-it-works ─────────────────────────────────────────────── */
.how-panel { margin-top: 0.5rem; }
.how-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.how-list li {
  padding: 10px 14px;
  background: rgba(255,255,255,.03);
  border-radius: 6px;
  border-left: 3px solid var(--accent, #238636);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ── Admin credits table ──────────────────────────────────────── */
.credits-admin-panel { grid-column: span 2; }
.credits-table-wrap { overflow-x: auto; margin-top: 0.75rem; }
.credits-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.credits-table th,
.credits-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border, #30363d);
  text-align: left;
  vertical-align: middle;
}
.credits-table th {
  color: var(--text-muted, #8b949e);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.credits-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border-radius: 9999px;
  padding: 2px 10px;
  font-weight: 700;
  font-size: 0.85rem;
}
.credits-ok { background: rgba(35,134,54,.15); color: #3fb950; border: 1px solid rgba(35,134,54,.3); }
.credits-zero { background: rgba(248,81,73,.1); color: #f85149; border: 1px solid rgba(248,81,73,.3); }
.credits-pill-sm {
  font-size: 0.72rem;
  background: rgba(35,134,54,.12);
  color: #3fb950;
  border-radius: 9999px;
  padding: 1px 6px;
  margin-left: 4px;
}
.credits-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.inline-form { display: inline-flex; align-items: center; gap: 4px; }
.input-sm {
  width: 70px;
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--border, #30363d);
  background: var(--bg-input, #0d1117);
  color: var(--text, #e6edf3);
  font-size: 0.82rem;
}
.credits-input { text-align: center; }

/* ── Tag auto-generated ──────────────────────────────────────── */
.tag-generated {
  display: inline-block;
  font-size: 0.7rem;
  background: rgba(139,92,246,.15);
  color: #a78bfa;
  border: 1px solid rgba(139,92,246,.3);
  border-radius: 4px;
  padding: 0px 5px;
  margin-left: 6px;
  vertical-align: middle;
}

/* ── Danger button ───────────────────────────────────────────── */
.btn.danger {
  background: rgba(248,81,73,.12);
  color: #f85149;
  border: 1px solid rgba(248,81,73,.3);
}
.btn.danger:hover { background: rgba(248,81,73,.22); }

@media (max-width: 640px) {
  .credits-admin-panel { grid-column: span 1; }
  .generate-header { flex-direction: column; }
  .generated-grid { grid-template-columns: 1fr; }
  .credits-actions { flex-direction: column; align-items: flex-start; }
}