:root {
  --bg:        #0d1218;
  --bg2:       #141b23;
  --bg3:       #1a222c;
  --bg4:       #212b37;
  --border:    #263140;
  --border2:   #34424f;
  --text:      #eaeff4;
  --text2:     #b9c3d0;
  --text3:     #8a97a8;
  --text4:     #5e6b7c;
  --accent:    #3aa7a0;
  --accent2:   #7fd4b8;
  --gold:      #d9a441;
  --gold2:     #f0c674;
  --red:       #e2685e;
  --amber:     #d9a441;
  --radius:    12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.25);
  --shadow-md: 0 6px 20px -6px rgba(0,0,0,.45);
  --shadow-glow: 0 0 0 1px rgba(58,167,160,.15), 0 8px 24px -8px rgba(58,167,160,.25);
  --font: 'Hind Siliguri', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background:
    radial-gradient(1200px 600px at 15% -10%, rgba(58,167,160,.07), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(217,164,65,.05), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: var(--font); font-size: 15px; line-height: 1.65;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
h1, h2, h3 { font-weight: 700; letter-spacing: -0.01em; }

/* Custom scrollbars — quieter than browser default, matches dark theme */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 10px; border: 2px solid var(--bg2); }
::-webkit-scrollbar-thumb:hover { background: var(--text4); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* Visible keyboard focus (accessibility) — mouse clicks don't show it, keyboard nav does */
.btn:focus-visible, .tab-btn:focus-visible, .seo-copy-btn:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px;
}

.screen { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; background: var(--bg); }
.auth-card { width: 340px; text-align: center; box-shadow: var(--shadow-md); }
.auth-card h1 { font-size: 22px; margin-bottom: 4px; }
.auth-card input { width: 100%; margin: 14px 0; text-align: center; letter-spacing: .15em; }

.card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; margin-bottom: 18px; box-shadow: var(--shadow-sm);
  transition: border-color .2s ease;
}
.card h2 { margin: 0 0 6px; font-size: 18px; display: flex; align-items: center; gap: 8px; }
.muted { color: var(--text3); font-size: 13px; margin: 0 0 14px; line-height: 1.6; }

.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px; flex-shrink: 0; background: var(--bg2); border-right: 1px solid var(--border);
  padding: 22px 14px; display: flex; flex-direction: column; gap: 4px;
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.sidebar .brand { padding: 0 10px 18px; }
.brand { font-weight: 700; font-size: 16px; color: var(--text); letter-spacing: -.01em; display: flex; align-items: center; gap: 8px; }
.side-nav { display: flex; flex-direction: column; gap: 3px; flex: 1; }
.side-nav .tab-btn {
  background: none; border: none; border-left: 3px solid transparent; color: var(--text3);
  padding: 11px 12px; border-radius: 0 8px 8px 0; cursor: pointer; font-family: var(--font);
  font-size: 14.5px; display: flex; align-items: center; gap: 10px; width: 100%; text-align: left;
  transition: background .15s ease, color .15s ease, border-color .15s ease; margin: 0;
}
.side-nav .tab-btn .ic { font-size: 16px; width: 20px; text-align: center; flex-shrink: 0; }
.side-nav .tab-btn:hover { background: var(--bg3); color: var(--text2); }
.side-nav .tab-btn.active { background: var(--bg3); color: var(--accent2); border-left-color: var(--accent); font-weight: 600; }
.side-logout { width: 100%; justify-content: center; margin-top: 14px; }
.sidebar .mini-badge { margin: 10px 4px 0; justify-content: center; }

.sidebar-toggle-btn {
  display: none; position: fixed; top: 14px; left: 14px; z-index: 30; width: 42px; height: 42px;
  background: var(--bg3); border: 1px solid var(--border2); color: var(--text); border-radius: var(--radius-sm);
  font-size: 18px; cursor: pointer; box-shadow: var(--shadow-sm);
}
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.55); z-index: 15; }

.container { flex: 1; min-width: 0; max-width: 1200px; margin: 0; padding: 28px 32px 60px; }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn .25s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 900px) {
  .sidebar-toggle-btn { display: block; }
  .sidebar {
    position: fixed; top: 0; left: 0; z-index: 20; transform: translateX(-100%);
    transition: transform .25s ease; box-shadow: var(--shadow-md);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay.open { display: block; }
  .container { padding: 70px 18px 50px; max-width: 100%; }
}

label { display: block; font-size: 12.5px; font-weight: 600; color: var(--text3); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .03em; }
input, select, textarea {
  width: 100%; background: var(--bg3); border: 1px solid var(--border2); color: var(--text);
  padding: 10px 12px; border-radius: var(--radius-sm); font-family: var(--font); font-size: 14px;
  transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
textarea { resize: vertical; line-height: 1.6; }
input:hover, select:hover, textarea:hover { border-color: var(--text4); }
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent); background: var(--bg4);
  box-shadow: 0 0 0 3px rgba(58,167,160,.18);
}
input::placeholder, textarea::placeholder { color: var(--text4); }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 6px; }
.fg { margin-bottom: 14px; }
.fg.full { grid-column: 1 / -1; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.btn {
  border: none; border-radius: var(--radius-sm); padding: 10px 18px; font-family: var(--font);
  font-size: 14px; font-weight: 600; cursor: pointer; display: inline-flex; align-items: center; gap: 6px;
  transition: transform .12s ease, box-shadow .12s ease, background .15s ease, opacity .15s ease;
}
.btn-p { background: linear-gradient(135deg, var(--accent), #2e8f88); color: #06211d; box-shadow: var(--shadow-sm); }
.btn-p:hover:not(:disabled) { background: linear-gradient(135deg, var(--accent2), var(--accent)); box-shadow: var(--shadow-glow); transform: translateY(-1px); }
.btn-p:active:not(:disabled) { transform: translateY(0); }
.btn-s { background: var(--bg3); color: var(--text2); border: 1px solid var(--border2); }
.btn-s:hover:not(:disabled) { background: var(--bg4); border-color: var(--text4); color: var(--text); }
.btn-danger { background: var(--red); color: #2b0906; }
.btn-danger:hover:not(:disabled) { filter: brightness(1.1); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 14px 22px; font-size: 15px; width: 100%; justify-content: center; margin-top: 10px; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.status-line { font-size: 13px; margin-top: 10px; min-height: 18px; font-family: var(--font-mono); }
.err-text { color: var(--red); font-size: 13px; margin-top: 10px; min-height: 16px; }

.spinner {
  width: 30px; height: 30px; border: 3px solid var(--border2); border-top-color: var(--accent);
  border-radius: 50%; animation: spin .8s linear infinite; margin: 4px auto 14px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.usage-bar { display: flex; gap: 16px; font-size: 12px; color: var(--text3); margin-bottom: 14px; flex-wrap: wrap; font-family: var(--font-mono); }
.content-preview {
  background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 20px;
  margin-top: 14px; max-height: 500px; overflow-y: auto; color: var(--text2);
}
.content-preview p { margin: 0 0 12px; }
.content-preview h2, .content-preview h3 { color: var(--text); margin-top: 20px; }

.progress-bar-wrap { height: 8px; background: var(--bg3); border-radius: 4px; overflow: hidden; margin-bottom: 8px; }
.progress-bar-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent2)); transition: width .4s ease; }
.stat-row { display: flex; gap: 16px; font-size: 13px; color: var(--text2); margin: 12px 0; flex-wrap: wrap; font-family: var(--font-mono); }
.bk-log { display: flex; flex-direction: column; gap: 6px; margin-top: 14px; max-height: 320px; overflow-y: auto; }
.bk-log-item { font-size: 12.5px; padding: 8px 10px; background: var(--bg3); border-radius: var(--radius-sm); border: 1px solid var(--border); }

.bk-item-card { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px; margin-bottom: 10px; position: relative; }
.bk-item-card .rm-btn { position: absolute; top: 10px; right: 10px; background: none; border: none; color: var(--text4); cursor: pointer; font-size: 15px; }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(100px);
  background: var(--bg4); border: 1px solid var(--border2); color: var(--text); padding: 12px 22px;
  border-radius: var(--radius-sm); font-size: 14px; opacity: 0; transition: all .3s cubic-bezier(.2,.8,.2,1);
  z-index: 100; box-shadow: var(--shadow-md);
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.ok { border-color: var(--accent); }
.toast.err { border-color: var(--red); }

@media (max-width: 640px) {
  .grid2 { grid-template-columns: 1fr; }
}

/* Tag input (sub-keywords) */
.tag-input-wrap {
  background: var(--bg3); border: 1px solid var(--border2); border-radius: var(--radius-sm);
  padding: 8px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.tag-input-wrap:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(58,167,160,.18); }
.tag-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-chip {
  background: var(--bg4); border: 1px solid var(--border2); color: var(--accent2);
  padding: 4px 8px; border-radius: 14px; font-size: 12.5px; display: flex; align-items: center; gap: 6px;
}
.tag-chip button { background: none; border: none; color: var(--text4); cursor: pointer; font-size: 12px; padding: 0; }
#subKwEntry { flex: 1; min-width: 140px; background: none; border: none; padding: 6px; }
#subKwEntry:focus { outline: none; box-shadow: none; background: none; }

/* Topbar mini progress badge — visible from every tab so bulk work stays visible while you do other things */
.mini-badge {
  background: var(--bg3); border: 1px solid var(--gold); color: var(--gold2);
  padding: 6px 14px; border-radius: 20px; font-size: 13px; font-family: var(--font-mono); cursor: pointer;
  display: flex; align-items: center; gap: 6px; transition: background .15s ease;
}
.mini-badge:hover { background: var(--bg4); }

/* Dashboard */
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 8px; }

/* Content Update: year toggle */
.toggle-box { background: var(--bg3); border: 1px solid var(--border2); border-radius: var(--radius-sm); padding: 14px; }
.toggle-row { display: flex; gap: 20px; margin-top: 10px; }
.radio-opt {
  display: flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 400;
  text-transform: none; letter-spacing: normal; color: var(--text2); cursor: pointer; margin: 0;
}
.radio-opt input { width: auto; accent-color: var(--accent); }

/* AdSense Pages tab */
.page-check-grid { display: flex; flex-wrap: wrap; gap: 16px; background: var(--bg3); border: 1px solid var(--border2); border-radius: var(--radius-sm); padding: 14px; }
.pg-result-card { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px; margin-bottom: 14px; }
.pg-result-card h3 { margin: 0 0 10px; font-size: 15px; color: var(--accent2); }

/* Result layout: content + quality score sidebar */
.result-layout { display: grid; grid-template-columns: 1fr 250px; gap: 14px; align-items: start; }
.score-panel {
  background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 18px;
  position: sticky; top: 24px; box-shadow: var(--shadow-sm);
}
.score-overall { font-family: var(--font-mono); font-size: 36px; font-weight: 700; line-height: 1; }
.score-overall-label { font-size: 12.5px; margin: 8px 0 16px; font-weight: 600; }
.score-metrics { display: flex; flex-direction: column; gap: 11px; }
.score-metric { font-size: 12.5px; border-top: 1px solid var(--border); padding-top: 9px; }
.score-metric-label { display: block; color: var(--text2); margin-bottom: 3px; font-weight: 500; }
.score-metric-detail { display: block; color: var(--text3); font-family: var(--font-mono); font-size: 11.5px; }
@media (max-width: 780px) {
  .result-layout { grid-template-columns: 1fr; }
  .score-panel { position: static; }
}

/* Generate tab: two-column layout (form left, result right) */
.gen-layout { display: grid; grid-template-columns: minmax(0, 460px) 1fr; gap: 20px; align-items: start; }
.gen-form-col, .gen-result-col { min-width: 0; }
.gen-result-col { position: sticky; top: 24px; }
.gen-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; color: var(--text4); padding: 70px 20px; border-style: dashed; }
.gen-placeholder-icon { font-size: 42px; margin-bottom: 14px; opacity: .5; }
.gen-prog-pct { text-align: center; font-family: var(--font-mono); font-size: 24px; font-weight: 700; color: var(--accent2); margin: 6px 0; }
.gen-prog-stage { text-align: center; font-size: 13px; color: var(--text3); }
@media (max-width: 980px) {
  .gen-layout { grid-template-columns: 1fr; }
  .gen-result-col { position: static; }
}

/* SEO data box (single article result) */
.seo-data-box { background: var(--bg3); border: 1px solid var(--border2); border-radius: var(--radius-sm); padding: 14px 16px; margin-bottom: 16px; }
.seo-data-header { display: flex; justify-content: space-between; align-items: center; font-size: 13px; font-weight: 700; color: var(--text2); margin-bottom: 10px; }
.seo-field-row { display: flex; align-items: flex-start; gap: 10px; padding: 9px 0; border-top: 1px solid var(--border); }
.seo-field-row:first-child { border-top: none; }
.seo-field-label { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--text4); width: 90px; flex-shrink: 0; padding-top: 7px; }
.seo-field-value { flex: 1; font-size: 13px; font-family: var(--font-mono); color: var(--text2); background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 7px 10px; word-break: break-word; }
.seo-copy-btn { background: none; border: 1px solid var(--border2); color: var(--text3); border-radius: 6px; padding: 5px 9px; cursor: pointer; font-size: 12px; flex-shrink: 0; transition: color .15s ease, border-color .15s ease; }
.seo-copy-btn:hover { color: var(--accent2); border-color: var(--accent); }

.stat-box { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 15px; transition: border-color .15s ease; }
.stat-box:hover { border-color: var(--border2); }
.stat-label { font-size: 11.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .03em; color: var(--text3); margin-bottom: 8px; }
.stat-value { font-family: var(--font-mono); font-size: 21px; font-weight: 700; color: var(--gold2); }
.section-sub { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--text3); margin: 22px 0 10px; }
@media (max-width: 640px) { .stat-grid { grid-template-columns: 1fr 1fr; } }

/* History tab */
.hist-row {
  display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 12px 14px; background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-sm);
  margin-bottom: 8px;
}
.hist-row-main { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; min-width: 0; }
.hist-type-badge { font-size: 11px; background: var(--bg4); border: 1px solid var(--border2); border-radius: 12px; padding: 3px 9px; color: var(--text3); white-space: nowrap; }
.hist-date { font-size: 11.5px; color: var(--text4); font-family: var(--font-mono); }
.hist-row-actions { display: flex; gap: 6px; flex-shrink: 0; }