/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0d1117;
  --bg2:       #161b22;
  --bg3:       #21262d;
  --border:    #30363d;
  --text:      #c9d1d9;
  --text-dim:  #8b949e;
  --text-hi:   #f0f6fc;
  --accent:    #58a6ff;
  --green:     #3fb950;
  --yellow:    #d29922;
  --orange:    #f0883e;
  --red:       #f85149;
  --radius:    8px;
  --radius-sm: 5px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ===== Header ===== */
.app-header {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 14px 32px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.logo {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-hi);
}
.tagline {
  font-size: 12px;
  color: var(--text-dim);
}

/* ===== Layout ===== */
.app-body {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 24px;
  max-width: 980px;
  margin: 32px auto;
  padding: 0 24px;
  align-items: start;
}
@media (max-width: 720px) {
  .app-body { grid-template-columns: 1fr; }
  .app-header { padding: 12px 16px; flex-wrap: wrap; }
}

/* ===== Panels ===== */
.panel-settings,
.panel-result {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

/* ===== Sections inside panel ===== */
.section {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.section:last-of-type { border-bottom: none; }
.section-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .7px;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.length-val {
  font-size: 14px;
  color: var(--accent);
  text-transform: none;
  letter-spacing: 0;
  margin-left: 6px;
  font-weight: 600;
}

/* ===== Mode Tabs ===== */
.mode-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}
.mode-tab {
  flex: 1;
  padding: 10px;
  background: none;
  border: none;
  font-size: 13px;
  color: var(--text-dim);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.mode-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.mode-tab:hover:not(.active) { color: var(--text); }

/* ===== Presets ===== */
.preset-btns, .sep-btns, .pp-preset-btns {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.preset-btn, .sep-btn, .pp-preset-btn {
  padding: 5px 12px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--text-dim);
  cursor: pointer;
  transition: all .15s;
}
.preset-btn:hover, .sep-btn:hover, .pp-preset-btn:hover { border-color: var(--accent); color: var(--text); }
.preset-btn.active, .sep-btn.active, .pp-preset-btn.active {
  background: #1c2d4a;
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== Slider ===== */
.slider-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
  height: 4px;
  cursor: pointer;
}
input[type="number"] {
  width: 62px;
  padding: 5px 8px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 13px;
  text-align: center;
}
input[type="number"]:focus { outline: none; border-color: var(--accent); }

/* ===== Toggles / Checkboxes ===== */
.toggles { display: flex; flex-direction: column; gap: 8px; }
.toggle-item {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}
.toggle-item input[type="checkbox"] { display: none; }
.toggle-box {
  width: 32px;
  height: 18px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 9px;
  position: relative;
  transition: background .2s, border-color .2s;
  flex-shrink: 0;
}
.toggle-box::after {
  content: '';
  width: 12px; height: 12px;
  background: var(--text-dim);
  border-radius: 50%;
  position: absolute;
  top: 2px; left: 2px;
  transition: transform .2s, background .2s;
}
.toggle-item input:checked + .toggle-box {
  background: #1f4429;
  border-color: #238636;
}
.toggle-item input:checked + .toggle-box::after {
  background: var(--green);
  transform: translateX(14px);
}
.toggle-label { font-size: 13px; color: var(--text); }
.charset-hint { font-size: 11px; color: var(--text-dim); margin-left: 4px; font-family: 'SF Mono', Consolas, monospace; }

/* ===== Text input ===== */
.text-input {
  width: 100%;
  padding: 7px 10px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 13px;
  font-family: 'SF Mono', Consolas, monospace;
}
.text-input:focus { outline: none; border-color: var(--accent); }
.text-input::placeholder { color: var(--text-dim); }

/* ===== Count row ===== */
.count-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.count-hint { font-size: 12px; color: var(--text-dim); }

/* ===== Generate button ===== */
.btn-generate {
  display: block;
  width: 100%;
  padding: 12px;
  background: #238636;
  border: 1px solid #2ea043;
  border-radius: 0 0 var(--radius) var(--radius);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}
.btn-generate:hover { background: #2ea043; }
.btn-generate:active { background: #1a6e2a; }

/* ===== Result panel ===== */
.result-box {
  padding: 20px 18px 14px;
  border-bottom: 1px solid var(--border);
}
.password-display {
  font-family: 'SF Mono', 'Fira Mono', Consolas, monospace;
  font-size: 18px;
  color: var(--text-hi);
  word-break: break-all;
  line-height: 1.6;
  min-height: 32px;
  letter-spacing: .04em;
}
.result-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.btn-copy, .btn-refresh {
  padding: 6px 14px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  transition: all .15s;
}
.btn-copy:hover, .btn-refresh:hover { border-color: var(--accent); color: var(--accent); }
.btn-copy.copied { background: #1f4429; border-color: #238636; color: var(--green); }
.btn-refresh { padding: 6px 10px; font-size: 15px; }

/* ===== Bulk results ===== */
.result-bulk {
  border-bottom: 1px solid var(--border);
}
.bulk-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 18px;
  font-size: 12px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}
.btn-copy-all {
  padding: 4px 10px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
  transition: all .15s;
}
.btn-copy-all:hover { border-color: var(--accent); color: var(--accent); }
.btn-copy-all.copied { background: #1f4429; border-color: #238636; color: var(--green); }
.bulk-list { max-height: 280px; overflow-y: auto; }
.bulk-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 18px;
  border-bottom: 1px solid var(--border);
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 13px;
  color: var(--text);
  gap: 10px;
}
.bulk-item:last-child { border-bottom: none; }
.bulk-item-text { word-break: break-all; flex: 1; }
.bulk-copy {
  padding: 2px 8px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-dim);
  font-size: 11px;
  cursor: pointer;
  white-space: nowrap;
  transition: all .15s;
  flex-shrink: 0;
}
.bulk-copy:hover { border-color: var(--accent); color: var(--accent); }
.bulk-copy.copied { border-color: #238636; color: var(--green); }

/* ===== Strength ===== */
.strength-section {
  padding: 14px 18px 10px;
  border-bottom: 1px solid var(--border);
}
.strength-bar-wrap {
  height: 6px;
  background: var(--bg3);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
}
.strength-bar {
  height: 100%;
  width: 0;
  border-radius: 3px;
  transition: width .4s ease, background .4s ease;
}
.strength-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
}
.strength-label { font-weight: 600; }
.entropy-val { color: var(--text-dim); }

/* strength colours */
.strength-weak   { background: var(--red);    color: var(--red);    }
.strength-fair   { background: var(--orange); color: var(--orange); }
.strength-strong { background: var(--yellow); color: var(--yellow); }
.strength-great  { background: var(--green);  color: var(--green);  }

/* ===== Charset info ===== */
.charset-info {
  padding: 10px 18px;
  font-size: 12px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  min-height: 36px;
}

/* ===== Privacy note ===== */
.privacy-note {
  padding: 12px 18px;
  font-size: 11px;
  color: var(--text-dim);
}


/* ===================================================
   API Documentation Section
   =================================================== */
.api-docs {
  max-width: 1100px;
  margin: 40px auto 0;
  padding: 0 20px 60px;
}

.api-docs-header {
  margin-bottom: 28px;
}

.api-docs-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.api-docs-title h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.api-badge {
  display: inline-block;
  padding: 3px 10px;
  background: #1a3a5c;
  color: #58a6ff;
  border: 1px solid #2d5a8e;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.api-badge-small {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.api-badge-small.public {
  background: rgba(35, 134, 54, .2);
  color: var(--green);
  border: 1px solid rgba(35, 134, 54, .4);
}

.api-badge-small.auth {
  background: rgba(210, 153, 34, .15);
  color: var(--yellow);
  border: 1px solid rgba(210, 153, 34, .35);
}

.api-docs-subtitle {
  color: var(--text-dim);
  font-size: 13px;
  margin: 0;
}

.api-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* === API Card === */
.api-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.api-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--bg3);
}

.http-method {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  font-family: monospace;
  letter-spacing: .04em;
}

.http-method.get {
  background: rgba(35, 134, 54, .2);
  color: #3fb950;
  border: 1px solid rgba(35, 134, 54, .4);
}

.http-method.post {
  background: rgba(88, 166, 255, .12);
  color: #58a6ff;
  border: 1px solid rgba(88, 166, 255, .3);
}

.endpoint-path {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  font-family: monospace;
  flex: 1;
}

.api-card-desc {
  padding: 12px 18px 6px;
  font-size: 13px;
  color: var(--text-dim);
  margin: 0;
}

/* === API Example (GET /health) === */
.api-example {
  padding: 0 18px 16px;
}

/* === Params table === */
.api-params {
  padding: 0 18px 16px;
  border-bottom: 1px solid var(--border);
}

.params-label, .examples-label, .code-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 8px;
  margin-top: 14px;
}

.params-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.params-table th {
  text-align: left;
  padding: 6px 10px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}

.params-table td {
  padding: 6px 10px;
  color: var(--text);
  border-bottom: 1px solid rgba(255,255,255,.04);
  vertical-align: top;
}

.params-table td:first-child code {
  color: #e6c07b;
}

.params-table td:last-child {
  color: var(--text-dim);
}

.params-table .params-group {
  padding: 8px 10px 4px;
  color: var(--text-dim);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  background: rgba(255,255,255,.03);
  border-top: 1px solid var(--border);
}

/* === Code blocks === */
.code-block {
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin: 0 0 10px;
  overflow-x: auto;
  font-size: 12px;
  line-height: 1.6;
}

.code-block code {
  color: #e6edf3;
  font-family: 'SF Mono', Consolas, 'Liberation Mono', Menlo, monospace;
  white-space: pre;
}

/* === Examples === */
.api-examples-tabs {
  padding: 0 18px 16px;
  border-bottom: 1px solid var(--border);
}

.example-block {
  margin-bottom: 16px;
}

.example-title {
  font-size: 11px;
  color: var(--text-dim);
  font-weight: 600;
  margin-bottom: 6px;
  margin-top: 14px;
}

/* === Response box === */
.api-response-box {
  padding: 0 18px 18px;
}

/* === Footer === */
.api-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 20px;
  padding: 16px 20px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.api-footer-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-dim);
}

.api-footer-icon {
  font-size: 14px;
}

.api-footer-item a {
  color: #58a6ff;
  text-decoration: none;
}

.api-footer-item a:hover {
  text-decoration: underline;
}

/* === Responsive === */
@media (max-width: 720px) {
  .api-docs { padding: 0 12px 40px; }
  .params-table { font-size: 11px; }
  .code-block { font-size: 11px; padding: 10px 12px; }
  .api-footer { flex-direction: column; gap: 10px; }
}

/* ── Password History ─────────────────────────────────────────────────────── */
.history-section {
  max-width: 960px;
  margin: 0 auto 24px;
  padding: 0 24px;
}
.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.history-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dim);
}
.history-note {
  font-size: 11px;
  font-weight: 400;
  color: #484f58;
  margin-left: 6px;
}
.btn-clear-hist {
  background: transparent;
  border: 1px solid var(--border);
  color: #8b949e;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: border-color .15s, color .15s;
}
.btn-clear-hist:hover { border-color: #f85149; color: #f85149; }
.history-list {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.history-empty {
  padding: 14px 16px;
  font-size: 12px;
  color: #484f58;
  text-align: center;
}
.history-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-bottom: 1px solid #21262d;
}
.history-item:last-child { border-bottom: none; }
.history-pw {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.history-meta {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
}
.history-tag {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 4px;
  text-transform: uppercase;
}
.history-tag.pw { background: #1c2d4a; color: #58a6ff; }
.history-tag.pp { background: #2d1f4a; color: #bc8cff; }
.history-ago { font-size: 11px; color: #484f58; }
.history-copy {
  background: transparent;
  border: 1px solid var(--border);
  color: #8b949e;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  cursor: pointer;
  flex-shrink: 0;
}
.history-copy:hover { border-color: var(--accent); color: var(--accent); }

/* ── QR Button ────────────────────────────────────────────────────────────── */
.btn-qr {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 13px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color .15s, color .15s;
}
.btn-qr:hover { border-color: var(--accent); color: var(--accent); }