/* =========================================================================
   WordLab — styles.css
   Amber accent within the EuKosmos visual family.
   ========================================================================= */

/* ---------- design tokens ------------------------------------------------ */
:root{
  --bg:        #0a0d14;
  --bg-grid:   rgba(245, 158, 11, 0.045);
  --surface:   #11151f;
  --surface2:  #161b27;
  --surface3:  #1d2331;
  --border:    rgba(255,255,255,.07);
  --border-strong: rgba(255,255,255,.12);
  --ink:       #f1f5f9;
  --soft:      #cbd5e1;
  --mute:      #8b94a7;
  --muted:     #64748b;

  /* Accent — amber */
  --accent:    #f59e0b;
  --accent-2:  #fbbf24;
  --accent-3:  #d97706;
  --accent-tint:  rgba(245, 158, 11, .14);
  --accent-tint-strong: rgba(245, 158, 11, .25);

  /* Semantic */
  --ok:        #10b981;
  --warn:      #f59e0b;
  --bad:       #f87171;
  --info:      #38bdf8;

  /* Writing-analysis hues */
  --hl-long:    rgba(245, 158, 11, .18);
  --hl-passive: rgba(168, 85, 247, .25);
  --hl-adverb:  rgba(56, 189, 248, .25);
  --hl-complex: rgba(244, 114, 182, .22);

  --r-sm: 6px;
  --r:    10px;
  --r-lg: 14px;

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "SF Mono", Menlo, Monaco, Consolas, "DejaVu Sans Mono", monospace;
  --serif: "Iowan Old Style", "Charter", Cambria, Georgia, serif;
}

/* ---------- reset / base ------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
html{font-size:15.5px;}
body{
  background:
    radial-gradient(1100px 600px at 80% -10%, rgba(245, 158, 11, .08), transparent 70%),
    radial-gradient(900px 500px at -10% 100%, rgba(245, 158, 11, .05), transparent 70%),
    linear-gradient(var(--bg-grid) 1px, transparent 1px) 0 0/28px 28px,
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px) 0 0/28px 28px,
    var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
button{font-family:inherit;color:inherit;}
input,textarea,select{font-family:inherit;color:inherit;}
a{color:var(--accent-2);text-decoration:none;}
a:hover{text-decoration:underline;}
h1,h2,h3,h4{margin:0;}
.muted{color:var(--mute);}
.small{font-size:12.5px;}

/* ---------- masthead ----------------------------------------------------- */
.masthead{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 28px;
  border-bottom:1px solid var(--border);
  background:rgba(10,13,20,.7);
  backdrop-filter:blur(10px);
  position:sticky;top:0;z-index:50;
}
.masthead__brand{display:flex;align-items:center;color:var(--ink);}
.masthead__logo{
  font-weight:800;letter-spacing:.06em;font-size:15px;
  font-feature-settings:"ss01";
}
.masthead__logo-accent{color:var(--accent);}
.masthead__logo-bracket{color:var(--mute);font-weight:600;margin:0 2px;}
.masthead__nav{display:flex;gap:18px;align-items:center;font-size:13px;}
.masthead__nav a{color:var(--soft);}
.masthead__nav a:hover{color:var(--accent-2);text-decoration:none;}

/* ---------- container ---------------------------------------------------- */
.container{
  max-width:1280px;margin:0 auto;padding:32px 28px 60px;
}
.hero{margin-bottom:24px;}
.hero__title{
  font-size:34px;font-weight:800;letter-spacing:-.02em;
  background:linear-gradient(135deg, var(--ink) 0%, var(--accent-2) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  display:inline-block;
}
.hero__sub{margin:8px 0 0;color:var(--mute);max-width:780px;}

/* ---------- editor + stats grid ----------------------------------------- */
.editor-grid{
  display:grid;
  grid-template-columns:minmax(0, 1.4fr) minmax(280px, 1fr);
  gap:18px;
  margin-bottom:28px;
}
@media (max-width: 980px){
  .editor-grid{grid-template-columns:1fr;}
}

/* editor pane */
.editor-pane{
  display:flex;flex-direction:column;min-height:520px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:border-color .15s, box-shadow .15s;
}
.editor-pane.is-dragging{
  border-color:var(--accent);
  box-shadow:0 0 0 4px var(--accent-tint);
}
.editor-toolbar{
  display:flex;justify-content:space-between;gap:8px;
  padding:10px 12px;
  background:var(--surface2);
  border-bottom:1px solid var(--border);
}
.toolbar-group{display:flex;gap:6px;align-items:center;}
.toolbar-group--right{margin-left:auto;}
#editor{
  flex:1;width:100%;
  border:0;outline:0;resize:vertical;
  padding:16px 18px;
  background:transparent;color:var(--ink);
  font-family:var(--mono);font-size:14px;line-height:1.65;
  min-height:380px;
}
#editor::placeholder{color:var(--muted);}
.editor-footer{
  display:flex;justify-content:space-between;align-items:center;
  padding:8px 14px;
  background:var(--surface2);
  border-top:1px solid var(--border);
  font-size:12.5px;color:var(--mute);
}
.ef-item--right{margin-left:auto;}
.ef-item.is-active{color:var(--accent-2);}
.ef-item strong{color:var(--ink);font-weight:600;}

/* ---------- buttons ------------------------------------------------------ */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 12px;
  background:var(--surface3);
  color:var(--soft);
  border:1px solid var(--border);
  border-radius:var(--r-sm);
  font-size:13px;font-weight:500;
  cursor:pointer;
  transition:background .12s, border-color .12s, color .12s;
}
.btn:hover{background:#252b3d;color:var(--ink);border-color:var(--border-strong);}
.btn:active{transform:translateY(1px);}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn--ghost{background:transparent;}
.btn--ghost:hover{background:var(--surface3);}
.btn--primary{
  background:var(--accent);color:#0a0d14;border-color:var(--accent);
  font-weight:600;
}
.btn--primary:hover{background:var(--accent-2);border-color:var(--accent-2);color:#0a0d14;}
.btn--danger-soft:hover{color:var(--bad);border-color:rgba(248,113,113,.3);}

/* ---------- stats pane --------------------------------------------------- */
.stats-pane{
  display:flex;flex-direction:column;gap:14px;
  position:sticky;top:84px;
  align-self:start;
  max-height:calc(100vh - 100px);overflow-y:auto;
  padding-right:2px;
}
@media (max-width: 980px){
  .stats-pane{position:static;max-height:none;}
}
.stat-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:14px 16px;
}
.stat-card__head{
  font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--mute);
  margin-bottom:10px;
}
.stat-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
}
.stat{
  display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  padding:5px 0;
}
.stat-grid .stat{padding:6px 0;}
.stat__label{font-size:12.5px;color:var(--mute);}
.stat__value{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:14px;font-weight:600;color:var(--ink);
}
.stat--lg .stat__value{font-size:22px;color:var(--accent-2);font-weight:700;}
.stat--lg{grid-column:span 1;padding:8px 0;border-bottom:1px solid var(--border);margin-bottom:4px;flex-direction:column;align-items:flex-start;}
.stat--lg .stat__label{font-size:11px;text-transform:uppercase;letter-spacing:.06em;font-weight:600;}
.stat-note{
  margin:8px 0 0;font-size:11.5px;color:var(--muted);font-style:italic;
}

/* ---------- tabs --------------------------------------------------------- */
.tabs{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  overflow:hidden;
}
.tabs-row{
  display:flex;gap:0;
  background:var(--surface2);
  border-bottom:1px solid var(--border);
  overflow-x:auto;
}
.tab-btn{
  flex:0 0 auto;
  padding:14px 22px;
  background:transparent;border:0;border-bottom:2px solid transparent;
  color:var(--mute);font-size:13.5px;font-weight:500;
  cursor:pointer;white-space:nowrap;
  transition:color .12s, border-color .12s, background .12s;
}
.tab-btn:hover{color:var(--ink);background:rgba(255,255,255,.02);}
.tab-btn.is-active{
  color:var(--accent-2);border-bottom-color:var(--accent);
  background:rgba(245, 158, 11, .04);
}
.tab-panel{padding:24px 26px;}

/* ---------- readability tab --------------------------------------------- */
.panel-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:14px;
  margin-bottom:14px;
}
@media (max-width: 720px){.panel-grid{grid-template-columns:1fr;}}
.card{
  background:var(--surface2);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:18px 20px;
}
.card--span2{grid-column:1 / -1;}
.card__head{
  display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  margin-bottom:14px;
}
.card__head h3{font-size:14px;font-weight:600;letter-spacing:.01em;color:var(--ink);}
.card__hint{font-size:11.5px;color:var(--muted);}

/* Flesch meter */
.flesch-display{display:flex;flex-direction:column;gap:14px;}
.flesch-score{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;}
.flesch-score__value{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:40px;font-weight:700;color:var(--accent-2);line-height:1;
}
.flesch-score__band{
  font-size:14px;font-weight:600;color:var(--ink);
}
.flesch-score__grade{
  font-size:12.5px;color:var(--mute);
  padding:3px 8px;border:1px solid var(--border);border-radius:99px;
}
.flesch-meter{position:relative;height:36px;}
.flesch-meter__track{
  position:relative;height:8px;border-radius:99px;margin-top:18px;
  background:linear-gradient(90deg, #ef4444 0%, #f97316 25%, #f59e0b 50%, #84cc16 75%, #10b981 100%);
  opacity:.6;
}
.flesch-meter__fill{
  position:absolute;left:0;top:0;height:8px;width:var(--pct);
  margin-top:18px;
  background:transparent;
  border-right:2px solid var(--ink);
  pointer-events:none;
}
.flesch-meter__fill::after{
  content:"";position:absolute;right:-7px;top:-4px;
  width:14px;height:16px;background:var(--ink);border-radius:3px;
  box-shadow:0 1px 0 rgba(0,0,0,.4);
}
.flesch-meter__label{
  position:absolute;top:-2px;transform:translateX(-50%);
  font-size:10.5px;color:var(--mute);font-weight:500;
}

/* Consensus card */
.card--consensus{display:flex;flex-direction:column;}
.consensus-display{display:flex;align-items:baseline;gap:10px;}
.consensus-display__value{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:48px;font-weight:700;color:var(--accent-2);line-height:1;
}
.consensus-display__unit{
  font-size:14px;color:var(--mute);font-weight:500;
}
.consensus-display__interp{
  margin:14px 0 0;font-size:13px;color:var(--soft);line-height:1.5;
}

/* Grade breakdown */
.grade-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));
  gap:12px;
}
.grade{
  display:flex;flex-direction:column;gap:4px;
  padding:12px 14px;
  background:rgba(255,255,255,.02);
  border:1px solid var(--border);
  border-radius:var(--r-sm);
}
.grade__name{font-size:12px;font-weight:600;color:var(--mute);letter-spacing:.02em;}
.grade__value{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:700;color:var(--ink);
}
.grade__hint{font-size:11.5px;color:var(--muted);line-height:1.45;}

/* ---------- limits tab --------------------------------------------------- */
.custom-target{
  background:var(--surface2);border:1px solid var(--border);
  border-radius:var(--r);padding:16px 18px;margin-bottom:22px;
}
.custom-target__title{font-size:13px;font-weight:600;margin-bottom:10px;}
.custom-target__row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;color:var(--soft);
}
.custom-target__row select,
.custom-target__row input{
  background:var(--surface3);border:1px solid var(--border);border-radius:var(--r-sm);
  padding:6px 10px;font-size:13px;margin-left:8px;
}
.custom-target__row input{width:110px;}
.custom-target__display{margin-top:14px;}

.section-h{
  font-size:13px;font-weight:600;
  letter-spacing:.05em;text-transform:uppercase;color:var(--mute);
  margin-bottom:12px;
}

.limits-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(280px, 1fr));
  gap:12px;
}
.limit-card{
  background:var(--surface2);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:13px 15px;
  transition:border-color .15s;
}
.limit-card--good{border-color:rgba(16,185,129,.4);}
.limit-card--warn{border-color:rgba(245,158,11,.4);}
.limit-card--over{border-color:rgba(248,113,113,.45);background:rgba(248,113,113,.05);}
.limit-card--custom{border-color:var(--accent);background:var(--accent-tint);}
.limit-card__head{
  display:flex;justify-content:space-between;align-items:baseline;gap:10px;
  margin-bottom:8px;
}
.limit-card__name{font-size:13px;font-weight:600;color:var(--ink);}
.limit-card__count{
  font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:600;
  font-size:13px;color:var(--soft);
}
.limit-card__foot{
  display:flex;justify-content:space-between;gap:10px;margin-top:8px;
  font-size:11.5px;color:var(--mute);
}
.limit-card__remain{font-weight:500;}
.limit-card--good .limit-card__remain{color:var(--ok);}
.limit-card--warn .limit-card__remain{color:var(--warn);}
.limit-card--over .limit-card__remain{color:var(--bad);}
.limit-card--over .limit-card__name{color:var(--bad);}

/* Meter (used by limit cards) */
.meter{
  height:6px;background:var(--surface3);border-radius:99px;overflow:hidden;
}
.meter__bar{
  height:100%;
  background:linear-gradient(90deg, var(--accent-3), var(--accent), var(--accent-2));
  border-radius:99px;
  transition:width .18s ease;
}
.limit-card--good .meter__bar{background:linear-gradient(90deg, #059669, var(--ok));}
.limit-card--over .meter__bar{background:linear-gradient(90deg, #dc2626, var(--bad));}

/* ---------- frequency tab ----------------------------------------------- */
.freq-toolbar{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  margin-bottom:14px;flex-wrap:wrap;
}
.inline-check{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--soft);cursor:pointer;
}
.inline-check input[type="checkbox"]{accent-color:var(--accent);}
.freq-wrap{overflow:auto;border:1px solid var(--border);border-radius:var(--r);}
.freq-table{
  width:100%;border-collapse:collapse;font-size:13px;
}
.freq-table thead th{
  background:var(--surface2);
  padding:9px 14px;text-align:left;font-weight:600;font-size:11.5px;
  color:var(--mute);letter-spacing:.04em;text-transform:uppercase;
  border-bottom:1px solid var(--border);
}
.freq-table th.num,.freq-table td.num{text-align:right;font-variant-numeric:tabular-nums;}
.freq-table tbody td{
  padding:8px 14px;border-bottom:1px solid rgba(255,255,255,.04);
}
.freq-table tbody tr:hover{background:rgba(245,158,11,.04);}
.freq-table code{
  font-family:var(--mono);font-size:13px;color:var(--ink);
  background:transparent;padding:0;
}
.freq-bar-cell{width:35%;}
.freq-bar{height:6px;background:var(--surface3);border-radius:99px;overflow:hidden;}
.freq-bar__fill{height:100%;background:linear-gradient(90deg, var(--accent-3), var(--accent));border-radius:99px;}

/* ---------- writing tab -------------------------------------------------- */
.writing-toolbar{
  display:flex;flex-wrap:wrap;gap:10px;margin-bottom:8px;
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 12px;
  background:var(--surface2);
  border:1px solid var(--border);
  border-radius:99px;
  font-size:12.5px;color:var(--soft);cursor:pointer;
  user-select:none;
  transition:background .12s, border-color .12s;
}
.chip:hover{background:var(--surface3);}
.chip input{accent-color:var(--accent);margin:0;}
.chip__count{
  font-family:var(--mono);font-weight:600;
  padding:1px 7px;background:var(--surface3);border-radius:99px;
  font-size:11.5px;
}
.chip--long{--chip-color:rgba(245,158,11,.55);}
.chip--passive{--chip-color:rgba(168,85,247,.55);}
.chip--adverb{--chip-color:rgba(56,189,248,.55);}
.chip--complex{--chip-color:rgba(244,114,182,.55);}
.chip:has(input:checked){background:rgba(255,255,255,.04);border-color:var(--chip-color);}

.writing-note{margin:8px 0 14px;}
.writing-wrap{
  background:var(--surface2);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:18px 22px;
  font-family:var(--serif);
  font-size:15px;
  line-height:1.75;
  white-space:pre-wrap;word-break:break-word;
  max-height:60vh;overflow:auto;
}
.writing-view{color:var(--ink);}

.hl-long{
  background:var(--hl-long);
  box-shadow:inset 0 -2px 0 rgba(245,158,11,.55);
}
.hl-passive{
  background:var(--hl-passive);
  text-decoration:underline;text-decoration-color:rgba(168,85,247,.5);text-underline-offset:3px;
}
.hl-adverb{
  color:var(--info);font-style:italic;
}
.hl-complex{
  border-bottom:1px dotted rgba(244,114,182,.7);
}

/* ---------- export tab --------------------------------------------------- */
.export-grid{
  display:grid;grid-template-columns:repeat(auto-fit, minmax(180px, 1fr));
  gap:14px;margin-top:14px;
}
.export-card{
  display:flex;flex-direction:column;align-items:flex-start;gap:6px;
  padding:18px 18px 16px;
  background:var(--surface2);
  border:1px solid var(--border);
  border-radius:var(--r);
  color:var(--ink);
  cursor:pointer;text-align:left;
  transition:background .12s, border-color .12s, transform .08s;
}
.export-card:hover{background:var(--surface3);border-color:var(--accent);transform:translateY(-1px);}
.export-card__icon{color:var(--accent-2);}
.export-card__title{font-size:14px;font-weight:600;}
.export-card__hint{font-size:11.5px;color:var(--mute);}

/* ---------- EuKosmos card ------------------------------------------------ */
.panel{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:24px 28px;
}
.panel--gold{
  border:1px solid rgba(245,158,11,.3);
  background:
    radial-gradient(800px 360px at 100% -20%, rgba(245,158,11,.10), transparent 70%),
    var(--surface);
}
.euk-card__head{margin-bottom:20px;}
.euk-card__title{
  font-size:20px;font-weight:700;
  display:flex;align-items:center;gap:8px;
}
.euk-card__brand{
  background:linear-gradient(135deg, var(--accent-2), var(--accent-3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.euk-card__sub{color:var(--mute);margin:6px 0 0;font-size:13.5px;}
.euk-card__grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(180px, 1fr));
  gap:10px;
}
.euk-tile{
  display:flex;flex-direction:column;gap:4px;
  padding:14px 16px;
  background:rgba(255,255,255,.025);
  border:1px solid var(--border);
  border-radius:var(--r);
  color:var(--ink);
  transition:background .12s, border-color .12s, transform .12s;
}
.euk-tile:hover{
  background:rgba(255,255,255,.05);
  border-color:rgba(245,158,11,.4);
  transform:translateY(-1px);
  text-decoration:none;
}
.euk-tile__name{font-size:14px;font-weight:700;color:var(--accent-2);letter-spacing:-.01em;}
.euk-tile__desc{font-size:12.5px;color:var(--mute);}

/* ---------- footer ------------------------------------------------------- */
.footer{
  padding:24px 28px 36px;
  font-size:12px;color:var(--mute);text-align:center;
  border-top:1px solid var(--border);
  margin-top:40px;
}
.footer__row{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;}
.footer__sep{color:var(--muted);}
.footer a{color:var(--soft);}
.footer a:hover{color:var(--accent-2);}

/* ---------- dialogs ------------------------------------------------------ */
.dialog{
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  background:var(--surface);
  color:var(--ink);
  width:min(560px, 92vw);
  padding:0;
}
.dialog::backdrop{background:rgba(0,0,0,.6);backdrop-filter:blur(2px);}
.dialog__head{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:14px 20px;
  border-bottom:1px solid var(--border);
}
.dialog__head h3{font-size:14px;font-weight:600;}
.dialog__close{
  background:transparent;border:0;color:var(--mute);
  font-size:18px;width:32px;height:32px;border-radius:var(--r-sm);cursor:pointer;
}
.dialog__close:hover{background:var(--surface3);color:var(--ink);}
.dialog .muted{padding:12px 20px 0;margin:0;font-size:12.5px;}
.dialog__foot{
  display:flex;justify-content:flex-end;gap:8px;
  padding:14px 20px;border-top:1px solid var(--border);
}

/* sample list */
.sample-list{
  display:grid;gap:10px;padding:16px 20px 20px;
}
.sample-card{
  display:flex;flex-direction:column;align-items:flex-start;gap:4px;
  padding:12px 14px;
  background:var(--surface2);border:1px solid var(--border);
  border-radius:var(--r);
  text-align:left;cursor:pointer;
  transition:background .12s, border-color .12s;
}
.sample-card:hover{background:var(--surface3);border-color:var(--accent);}
.sample-card__label{font-size:13px;font-weight:600;color:var(--ink);}
.sample-card__preview{font-size:12px;color:var(--mute);line-height:1.45;}

/* settings */
.settings-form{padding:16px 20px;display:flex;flex-direction:column;gap:14px;}
.setting{display:flex;flex-direction:column;gap:6px;}
.setting__label{font-size:13px;font-weight:600;color:var(--ink);}
.setting__row{display:flex;align-items:center;gap:8px;}
.setting__row input{
  background:var(--surface3);color:var(--ink);
  border:1px solid var(--border);border-radius:var(--r-sm);
  padding:7px 10px;font-size:13px;width:120px;
  font-family:var(--mono);
}
.setting__unit{font-size:12.5px;color:var(--mute);}
.setting__hint{font-size:11.5px;color:var(--muted);}

/* ---------- toast -------------------------------------------------------- */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(20px);
  background:var(--surface3);
  color:var(--ink);
  padding:10px 18px;border-radius:99px;
  border:1px solid var(--border-strong);
  font-size:13px;font-weight:500;
  opacity:0;pointer-events:none;
  transition:opacity .18s, transform .18s;
  z-index:1000;
  box-shadow:0 8px 28px rgba(0,0,0,.4);
}
.toast.is-visible{opacity:1;transform:translateX(-50%) translateY(0);}