/* ---------- Tokens ---------- */
:root {
  --bg: #0e1116;
  --bg-elev: #161b23;
  --bg-input: #0b0e13;
  --border: #262d38;
  --border-soft: #1d232c;
  --text: #e6eaf0;
  --text-dim: #98a2b3;
  --text-mute: #6b7683;
  --accent: #3b82f6;
  --accent-hover: #2f6fdd;
  --ok: #22c55e;
  --warn: #f59e0b;
  --danger: #ef4444;
  --code: #7dd3fc;
  --radius: 12px;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, "Liberation Mono", monospace;
}

[data-theme="light"] {
  --bg: #f4f6f9;
  --bg-elev: #ffffff;
  --bg-input: #f8fafc;
  --border: #dde3ec;
  --border-soft: #e9edf3;
  --text: #131920;
  --text-dim: #55606f;
  --text-mute: #8a95a3;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --code: #0369a1;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 40px;
}

/* ---------- Topbar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-soft);
  background: var(--bg-elev);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 30px; height: 30px; fill: var(--accent); flex: none; }
.brand h1 { font-size: 17px; margin: 0; letter-spacing: -0.2px; }
.brand-sub { margin: 1px 0 0; font-size: 12px; color: var(--text-mute); }

.topbar-actions { display: flex; align-items: center; gap: 8px; }

.pill {
  font-size: 11.5px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  white-space: nowrap;
}
.pill-ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 35%, transparent); }
.pill-warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }

.icon-btn {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  font-size: 16px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
}
.icon-btn:hover { background: var(--bg-input); color: var(--text); }

/* ---------- Layout ---------- */
main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
}
.panel { padding: 18px; }

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.panel-head h2 { font-size: 14px; margin: 0; font-weight: 600; letter-spacing: 0.2px; }
.count {
  font: 600 11px/1 var(--mono);
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 3px 7px;
  border-radius: 999px;
  margin-left: 4px;
}
.panel-tools { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* ---------- Inputs ---------- */
textarea, input[type="text"], input[type="password"], input[type="number"],
input[type="search"], select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 9px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
}
textarea {
  min-height: 108px;
  resize: vertical;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
}
textarea:focus, input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}
input[type="search"] { width: 190px; }

.row-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }

.btn {
  font: 500 13.5px/1 inherit;
  padding: 10px 15px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { border-color: var(--text-mute); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-ghost { background: transparent; color: var(--text-dim); }
.btn-danger { background: transparent; border-color: color-mix(in srgb, var(--danger) 50%, transparent); color: var(--danger); }
.btn-danger:hover { background: color-mix(in srgb, var(--danger) 12%, transparent); }
.btn-sm { padding: 7px 11px; font-size: 12.5px; }

.link-btn {
  background: none; border: 0; padding: 0;
  color: var(--accent); font-size: 12.5px; cursor: pointer;
}
.link-btn:hover { text-decoration: underline; }
.link-danger { color: var(--danger); font-size: 12px; }

/* ---------- Hướng dẫn sử dụng ---------- */
.guide[hidden] { display: none; }
.guide-steps, .guide-risks { margin: 0; padding-left: 20px; font-size: 13.5px; color: var(--text-dim); }
.guide-steps li, .guide-risks li { margin: 7px 0; line-height: 1.6; }
.guide-steps b, .guide-risks b { color: var(--text); font-weight: 600; }
.guide-steps code, .guide-risks code {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--code);
  background: var(--bg-input);
  border: 1px solid var(--border-soft);
  border-radius: 5px;
  padding: 1px 5px;
}

.guide-risk-title {
  margin: 18px 0 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--warn);
  border-top: 1px solid var(--border-soft);
  padding-top: 14px;
}
.guide-risks li::marker { color: var(--warn); }

.help {
  margin: 12px 0 0;
  padding: 12px 14px;
  border: 1px dashed var(--border);
  border-radius: 9px;
  font-size: 13px;
  color: var(--text-dim);
}
.help ul { margin: 0; padding-left: 18px; }
.help li { margin: 3px 0; }
.help code, .foot code { font-family: var(--mono); font-size: 12px; color: var(--code); }

.errors {
  margin-top: 12px;
  border: 1px solid color-mix(in srgb, var(--danger) 45%, transparent);
  background: color-mix(in srgb, var(--danger) 8%, transparent);
  border-radius: 9px;
  padding: 10px 12px;
  font-size: 12.5px;
  color: var(--text);
}
.errors b { color: var(--danger); }
.errors div { margin-top: 4px; font-family: var(--mono); font-size: 11.5px; color: var(--text-dim); word-break: break-all; }

/* ---------- Danh sách mã ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 12px;
  margin-top: 14px;
}
.grid:empty { margin-top: 0; }

.acct {
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 13px 14px;
  background: var(--bg-input);
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}
.acct.expiring { border-color: color-mix(in srgb, var(--warn) 55%, transparent); }
.acct.invalid { border-color: color-mix(in srgb, var(--danger) 55%, transparent); }

.acct-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.acct-label {
  font-size: 13px;
  font-weight: 600;
  word-break: break-all;
  min-width: 0;
}
.acct-issuer { font-size: 11.5px; color: var(--text-mute); font-weight: 400; }
.acct-menu { display: flex; gap: 4px; flex: none; }
.acct-menu button {
  width: 26px; height: 26px;
  display: grid; place-items: center;
  border-radius: 7px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-mute);
  cursor: pointer;
  font-size: 13px;
}
.acct-menu button:hover { border-color: var(--border); color: var(--text); }

.acct-main { display: flex; align-items: center; gap: 12px; }

.code {
  font: 600 30px/1 var(--mono);
  letter-spacing: 3px;
  color: var(--text);
  cursor: pointer;
  user-select: all;
  padding: 2px 4px;
  border-radius: 7px;
  flex: 1;
  min-width: 0;
}
.code:hover { background: color-mix(in srgb, var(--accent) 14%, transparent); }
.code.err { font-size: 13px; letter-spacing: 0; color: var(--danger); cursor: default; }
.code.err:hover { background: none; }

.ring { width: 42px; height: 42px; flex: none; transform: rotate(-90deg); }
.ring circle { fill: none; stroke-width: 3; }
.ring .ring-bg { stroke: var(--border); }
.ring .ring-fg {
  stroke: var(--accent);
  stroke-linecap: round;
  transition: stroke-dashoffset .18s linear, stroke .3s;
}
.acct.expiring .ring-fg { stroke: var(--warn); }
.ring-wrap { position: relative; flex: none; display: grid; place-items: center; }
.ring-sec {
  position: absolute;
  font: 600 12px/1 var(--mono);
  color: var(--text-dim);
}

.acct-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 11.5px;
  color: var(--text-mute);
  border-top: 1px solid var(--border-soft);
  padding-top: 8px;
  flex-wrap: wrap;
}
.acct-next { font-family: var(--mono); }
.acct-next b { color: var(--text-dim); font-weight: 600; letter-spacing: 1px; }
/* Dòng phụ (mật khẩu / ghi chú) nằm ngay dưới dòng secret, không cần vạch ngăn.
   Tách thành class để CSP có thể chặn hẳn style-src inline. */
.acct-foot-sub { border: 0; padding-top: 0; }

.secret-line, .pw-line {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-mute);
  word-break: break-all;
  cursor: pointer;
}
.secret-line:hover, .pw-line:hover { color: var(--text-dim); }

.empty { color: var(--text-mute); font-size: 13.5px; margin: 6px 0 0; }

/* ---------- Kéo thả sắp xếp ---------- */
.drag-handle {
  cursor: grab;
  font-size: 12px !important;
  letter-spacing: -1px;
}
.drag-handle:active { cursor: grabbing; }
.acct.dragging { opacity: .4; }
.acct.drop-target { outline: 2px dashed var(--accent); outline-offset: 2px; }

/* ---------- Dialog ---------- */
.dlg {
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  border-radius: 14px;
  padding: 0;
  width: min(520px, calc(100vw - 32px));
}
.dlg::backdrop { background: rgba(0, 0, 0, .55); }
.dlg form { padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.dlg h3 { margin: 0 0 2px; font-size: 15px; }
.dlg label { display: flex; flex-direction: column; gap: 5px; font-size: 12.5px; color: var(--text-dim); }
.dlg label.check { flex-direction: row; align-items: center; gap: 8px; color: var(--text); font-size: 13.5px; }
.dlg label.check input { width: auto; }
.field-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.dlg-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 4px; }
.dlg-error { color: var(--danger); font-size: 12.5px; margin: 0; }
.danger-zone { border-top: 1px solid var(--border-soft); padding-top: 12px; margin-top: 4px; }
.muted { color: var(--text-mute); font-weight: 400; }
.small { font-size: 12px; margin: -4px 0 0; }

/* ---------- Footer & toast ---------- */
.foot {
  max-width: 1080px;
  margin: 0 auto;
  padding: 4px 20px 0;
  font-size: 12.5px;
  color: var(--text-mute);
}
.foot p { margin: 6px 0; }
.crypto-note { font-size: 12px; }

.credit {
  margin-top: 14px !important;
  padding-top: 12px;
  border-top: 1px solid var(--border-soft);
  font-size: 12.5px;
  color: var(--text-mute);
}
.credit b { color: var(--text-dim); font-weight: 600; }

/* ---------- Màn khoá ---------- */
.lock {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--bg);
  display: grid;
  place-items: center;
  padding: 24px;
}
.lock[hidden] { display: none; }

.lock-box {
  width: min(360px, 100%);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.lock-icon { width: 52px; height: 52px; fill: var(--accent); }
.lock-box h2 { margin: 4px 0 0; font-size: 18px; }
.lock-sub { margin: 0; font-size: 13px; color: var(--text-mute); }
.lock-box form { width: 100%; display: flex; flex-direction: column; gap: 10px; margin-top: 8px; }
.lock-box input { text-align: center; font-size: 15px; padding: 12px; }

/* ---------- Khối cài đặt mã hoá ---------- */
.sec-block {
  border-top: 1px solid var(--border-soft);
  padding-top: 14px;
  margin-top: 4px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sec-block h4 { margin: 0; font-size: 13px; font-weight: 600; }
.sec-block .row-actions { margin-top: 0; }
.btn[disabled] { opacity: .4; cursor: not-allowed; }
.btn[disabled]:hover { border-color: var(--border); }

/* Control bị tắt khi vault đang khoá. Lớp phủ .lock che gần hết, nhưng vẫn cần
   để đúng trong khoảnh khắc lớp phủ chưa vẽ xong. */
input[disabled], textarea[disabled], select[disabled], .icon-btn[disabled] {
  opacity: .4;
  cursor: not-allowed;
}
input[disabled]:focus, textarea[disabled]:focus { border-color: var(--border); box-shadow: none; }
.icon-btn[disabled]:hover { background: transparent; color: var(--text-dim); }

.warn-box {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--warn);
  background: color-mix(in srgb, var(--warn) 9%, transparent);
  border: 1px solid color-mix(in srgb, var(--warn) 35%, transparent);
  border-radius: 8px;
  padding: 9px 11px;
}

/* ---------- Overlay bận (dẫn xuất khoá mất ~1 giây) ---------- */
.busy {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(0, 0, 0, .5);
  display: grid;
  place-items: center;
}
.busy[hidden] { display: none; }
.busy-box {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13.5px;
  color: var(--text);
}
.spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  flex: none;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 2s; } }

.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translate(-50%, 20px);
  background: var(--text);
  color: var(--bg);
  font-size: 13px;
  font-weight: 500;
  padding: 9px 16px;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s, transform .18s;
  z-index: 60;
  max-width: calc(100vw - 40px);
  text-align: center;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  input[type="search"] { width: 100%; }
  .panel-tools { width: 100%; }
  .field-row { grid-template-columns: 1fr; }
  .code { font-size: 26px; letter-spacing: 2px; }
}