/* =========================================================
   Simple Online Counter, design tokens
   Concept: a mechanical instrument panel (think a hand-tally
   clicker / odometer), not a generic SaaS card UI.
   ========================================================= */
:root{
  --paper:      #EFEAE0;
  --paper-2:    #E4DDCE;
  --ink:        #1C1F22;
  --ink-soft:   #4B5257;
  --line:       #C9C0AC;
  --amber:      #B5670C;
  --amber-2:    #935405;
  --teal:       #2F6E62;
  --danger:     #A6402F;
  --radius:     10px;
  --radius-lg:  16px;
  --shadow:     0 1px 2px rgba(28,31,34,.08), 0 6px 20px rgba(28,31,34,.06);
  --font-body:  system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono:  ui-monospace, "Cascadia Mono", "JetBrains Mono", "Roboto Mono", Menlo, Consolas, monospace;
  --font-display: Georgia, "Iowan Old Style", "Palatino Linotype", "Times New Roman", serif;
  --dur: .16s;
}

:root[data-theme="dark"]{
  --paper:    #14181C;
  --paper-2:  #1C2126;
  --ink:      #ECE7DA;
  --ink-soft: #9BA3AA;
  --line:     #2E3540;
  --amber:    #FFB020;
  --amber-2:  #FFC966;
  --teal:     #4FA593;
  --danger:   #E8836B;
  --shadow:   0 1px 2px rgba(0,0,0,.35), 0 10px 30px rgba(0,0,0,.35);
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:    #14181C;
    --paper-2:  #1C2126;
    --ink:      #ECE7DA;
    --ink-soft: #9BA3AA;
    --line:     #2E3540;
    --amber:    #FFB020;
    --amber-2:  #FFC966;
    --teal:     #4FA593;
    --danger:   #E8836B;
    --shadow:   0 1px 2px rgba(0,0,0,.35), 0 10px 30px rgba(0,0,0,.35);
  }
}

*,*::before,*::after{ box-sizing:border-box; }
html{ color-scheme: light dark; -webkit-text-size-adjust:100%; text-size-adjust:100%; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  transition: background var(--dur) ease, color var(--dur) ease;
  overflow-x:hidden;
}
button, .btn, .icon-btn, .chip, .counter-item-btn{ -webkit-tap-highlight-color:transparent; touch-action:manipulation; }
input, select, textarea{ font-size:16px; } /* prevents iOS Safari auto-zoom on focus */
img,svg{ display:block; max-width:100%; }
a{ color:var(--teal); }
h1,h2,h3{ font-weight:700; letter-spacing:-.01em; line-height:1.15; }
h1,h2{ font-family:var(--font-display); font-weight:700; letter-spacing:0; }
.logo-text{ font-family:var(--font-display); }
.wrap{ max-width:1080px; margin:0 auto; padding:0 20px; }

.visually-hidden{
  position:absolute !important; width:1px; height:1px; overflow:hidden;
  clip:rect(0 0 0 0); white-space:nowrap; border:0; padding:0; margin:-1px;
}
.skip-link{
  position:absolute; left:-999px; top:0; background:var(--amber); color:var(--ink);
  padding:10px 16px; z-index:100; border-radius:0 0 8px 0; font-weight:600;
}
.skip-link:focus{ left:0; }

:focus-visible{ outline:3px solid var(--amber); outline-offset:2px; }

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{ animation-duration:.001ms !important; transition-duration:.001ms !important; }
}

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:20;
  background:color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom:1px solid var(--line);
}
.header-row{ display:flex; align-items:center; gap:20px; height:64px; }
.logo{ display:flex; align-items:center; gap:8px; font-weight:800; font-size:1.1rem; text-decoration:none; color:var(--ink); margin-right:auto; min-width:0; }
.logo-mark{
  display:inline-grid; place-items:center; flex:none; width:30px; height:30px; border-radius:8px;
  background:var(--amber); color:#1C1F22;
}
.logo-text{ overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.logo-text-short{ display:none; }
@media (max-width:480px){
  .logo-text-full{ display:none; }
  .logo-text-short{ display:inline; }
}
.site-nav{ display:none; gap:22px; }
.site-nav a{ color:var(--ink-soft); text-decoration:none; font-size:.95rem; font-weight:600; }
.site-nav a:hover{ color:var(--ink); }
@media (min-width:860px){ .site-nav{ display:flex; } }

.icon-btn{
  display:inline-grid; place-items:center; width:42px; height:42px; border-radius:8px;
  border:1px solid var(--line); background:var(--paper-2); color:var(--ink); cursor:pointer;
  transition:transform var(--dur) ease, background var(--dur) ease;
}
.icon-btn:hover{ background:var(--line); }
.icon-btn:active{ transform:scale(.94); }

/* ---------- buttons ---------- */
.btn{
  font-family:inherit; font-weight:700; font-size:.92rem; border-radius:8px; cursor:pointer;
  padding:10px 16px; border:1px solid var(--line); background:var(--paper-2); color:var(--ink);
  transition:transform var(--dur) ease, background var(--dur) ease, border-color var(--dur) ease;
}
.btn:hover{ border-color:var(--amber); }
.btn:active{ transform:scale(.97); }
.btn-small{ padding:6px 10px; font-size:.82rem; }
.btn-ghost{ background:transparent; }
.btn-danger{ color:var(--danger); }
.btn:disabled{ opacity:.4; cursor:not-allowed; }

/* ---------- tool section (hero) ---------- */
.tool-section{ padding:44px 0 56px; }
.eyebrow{
  font-family:var(--font-mono); text-transform:uppercase; letter-spacing:.08em; font-size:.78rem;
  color:var(--amber-2, var(--amber)); margin:0 0 10px;
}
#tool-h1{ font-size:clamp(2rem, 5vw, 2.9rem); margin:0 0 12px; }
.tool-lede{ color:var(--ink-soft); max-width:56ch; margin:0 0 16px; }
.tool-definition{ color:var(--ink-soft); max-width:56ch; margin:0 0 28px; font-size:.92rem; padding:12px 14px; background:var(--paper-2); border-left:3px solid var(--amber); border-radius:6px; }

.counter-app{
  display:grid; grid-template-columns:1fr; gap:16px;
  background:var(--paper-2); border:1px solid var(--line); border-radius:var(--radius-lg);
  box-shadow:var(--shadow); padding:16px; overflow:hidden;
}
@media (min-width:760px){
  .counter-app{ grid-template-columns:220px 1fr; padding:0; }
}

.counter-list{ border-bottom:1px solid var(--line); padding:14px; }
@media (min-width:760px){
  .counter-list{ border-bottom:none; border-right:1px solid var(--line); padding:18px; max-height:520px; overflow-y:auto; }
}
.counter-list-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:10px; }
.counter-list-title{ font-weight:800; font-size:.85rem; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-soft); }
.counter-list-items{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:4px; }
.counter-list-items li{ display:flex; }
.counter-item-btn{
  flex:1; text-align:left; display:flex; justify-content:space-between; gap:8px;
  padding:9px 10px; border-radius:8px; border:1px solid transparent; background:transparent;
  color:var(--ink); font-family:inherit; font-size:.9rem; cursor:pointer;
}
.counter-item-btn:hover{ background:var(--paper); }
.counter-item-btn[aria-current="true"]{ background:var(--paper); border-color:var(--amber); font-weight:700; }
.counter-item-val{ font-family:var(--font-mono); color:var(--ink-soft); }

.counter-display{ padding:20px 18px 26px; display:flex; flex-direction:column; align-items:center; gap:16px; }
.counter-display-top{ width:100%; display:flex; align-items:center; gap:10px; }
.counter-name-input{
  flex:1; font-weight:700; font-size:1.05rem; background:transparent; border:1px solid transparent;
  border-radius:8px; padding:6px 8px; color:var(--ink); font-family:inherit;
}
.counter-name-input:hover, .counter-name-input:focus{ border-color:var(--line); }
.display-actions{ display:flex; gap:6px; }

.count-value{
  font-family:var(--font-mono); font-variant-numeric:tabular-nums; font-weight:700;
  font-size:clamp(3.5rem, 14vw, 6.5rem); line-height:1; color:var(--ink);
  letter-spacing:-.02em; padding:.1em .2em; user-select:none;
  text-shadow: 0 0 0 transparent;
}
:root[data-theme="dark"] .count-value,
@media (prefers-color-scheme: dark){ .count-value{ text-shadow:0 0 24px color-mix(in srgb, var(--amber) 35%, transparent); } }

.step-row{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; justify-content:center; }
.step-row label{ font-size:.85rem; color:var(--ink-soft); font-weight:600; }
.step-row input[type="number"]{
  width:72px; padding:7px 8px; border-radius:8px; border:1px solid var(--line);
  background:var(--paper); color:var(--ink); font-family:var(--font-mono); text-align:center;
}
@media (max-width:420px){
  .step-row{ flex-direction:column; align-items:stretch; gap:8px; }
  .step-row label{ text-align:center; }
  .step-row input[type="number"]{ width:100%; }
  .step-presets{ justify-content:center; }
}
.step-presets{ display:flex; gap:6px; }
.chip{
  font-family:var(--font-mono); font-size:.78rem; font-weight:700; padding:4px 9px;
  border-radius:999px; border:1px solid var(--line); background:var(--paper); color:var(--ink-soft);
  cursor:pointer;
}
.chip:hover{ border-color:var(--amber); color:var(--ink); }
.chip[aria-pressed="true"]{ background:var(--amber); border-color:var(--amber); color:#1C1F22; }

.limits-panel{ width:100%; max-width:340px; }
.limits-panel summary{ cursor:pointer; font-weight:700; font-size:.85rem; color:var(--ink-soft); }
.limits-row{ display:flex; align-items:center; gap:8px; flex-wrap:wrap; margin-top:10px; }
.limits-row label{ font-size:.82rem; color:var(--ink-soft); }
.limits-row input[type="number"]{
  width:64px; padding:6px 7px; border-radius:8px; border:1px solid var(--line);
  background:var(--paper); color:var(--ink); font-family:var(--font-mono); text-align:center;
}
.limits-row input:disabled{ opacity:.45; }

.main-controls{ display:flex; gap:18px; align-items:center; }
.btn-round{
  width:78px; height:78px; border-radius:50%; font-size:2.2rem; font-weight:400;
  border:none; cursor:pointer; color:#fff; display:grid; place-items:center;
  box-shadow: 0 3px 0 rgba(0,0,0,.25), var(--shadow);
  transition:transform .1s ease, box-shadow .1s ease;
}
.btn-round:active{ transform:translateY(2px); box-shadow:0 1px 0 rgba(0,0,0,.25); }
.btn-increment{ background:var(--teal); }
.btn-decrement{ background:var(--amber-2, var(--amber)); color:#1C1F22; }

.secondary-controls{ display:flex; gap:8px; flex-wrap:wrap; justify-content:center; }

.btn-hold{
  position:relative; overflow:hidden; isolation:isolate;
}
.btn-hold-fill{
  position:absolute; inset:0; width:0%; background:color-mix(in srgb, var(--danger) 55%, transparent);
  z-index:-1; transition:width linear;
}
.btn-hold.holding .btn-hold-fill{ width:100%; }
.btn-hold-label{ position:relative; }

.btn-danger[data-armed="true"]{
  background:var(--danger); color:#fff; border-color:var(--danger);
}
.feedback-row{ display:flex; gap:18px; }
.toggle{ display:flex; align-items:center; gap:6px; font-size:.85rem; color:var(--ink-soft); cursor:pointer; }

.stats-panel{ width:100%; max-width:340px; }
.stats-panel summary{ cursor:pointer; font-weight:700; font-size:.85rem; color:var(--ink-soft); }
.stats-list{ display:grid; grid-template-columns:1fr auto; gap:4px 10px; margin:10px 0 0; font-family:var(--font-mono); font-size:.85rem; }
.stats-list dt{ color:var(--ink-soft); }
.stats-list dd{ margin:0; text-align:right; }

.kbd-hint{ text-align:center; color:var(--ink-soft); font-size:.82rem; margin-top:18px; }
kbd{
  font-family:var(--font-mono); background:var(--paper-2); border:1px solid var(--line);
  border-bottom-width:2px; border-radius:5px; padding:1px 6px; font-size:.82em;
}

/* focus / zen mode */
body.focus-mode .site-header,
body.focus-mode #features,
body.focus-mode #how-to,
body.focus-mode #use-cases,
body.focus-mode #faq,
body.focus-mode #about,
body.focus-mode .site-footer,
body.focus-mode .tool-intro,
body.focus-mode .kbd-hint,
body.focus-mode .counter-list{ display:none !important; }
body.focus-mode .tool-section{ min-height:100vh; display:flex; align-items:center; }
body.focus-mode .counter-app{ grid-template-columns:1fr; border:none; box-shadow:none; background:transparent; }
body.focus-mode .count-value{ font-size:clamp(5rem, 22vw, 11rem); }

/* ---------- content sections ---------- */
.section{ padding:60px 0; }
.section-alt{ background:var(--paper-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.section h2{ font-size:clamp(1.5rem, 3.2vw, 2rem); margin:0 0 8px; }
.section-lede{ color:var(--ink-soft); max-width:60ch; margin:0 0 30px; }

.feature-grid, .usecase-grid{
  list-style:none; margin:24px 0 0; padding:0;
  display:grid; grid-template-columns:repeat(auto-fit, minmax(230px, 1fr)); gap:18px;
}
.feature-grid li, .usecase-grid li{
  background:var(--paper); border:1px solid var(--line); border-radius:var(--radius);
  padding:18px; box-shadow:var(--shadow);
}
.feature-grid h3, .usecase-grid h3{ font-size:1.02rem; margin:0 0 6px; }
.feature-grid p, .usecase-grid p{ margin:0; color:var(--ink-soft); font-size:.92rem; }

.steps-list{ list-style:none; counter-reset:step; margin:24px 0 0; padding:0; display:grid; gap:16px; max-width:640px; }
.steps-list li{ display:flex; gap:16px; counter-increment:step; }
.steps-list li::before{
  content:counter(step); flex:none; width:34px; height:34px; border-radius:50%;
  background:var(--amber); color:#1C1F22; font-family:var(--font-mono); font-weight:800;
  display:grid; place-items:center;
}
.steps-list h3{ margin:0 0 4px; font-size:1rem; }
.steps-list p{ margin:0; color:var(--ink-soft); font-size:.92rem; }

.faq-list{ display:grid; gap:10px; max-width:760px; }
.faq-list details{ background:var(--paper); border:1px solid var(--line); border-radius:var(--radius); padding:14px 16px; }
.faq-list summary{ cursor:pointer; font-weight:700; }
.faq-list p{ margin:10px 0 0; color:var(--ink-soft); }

.about-grid{ display:grid; gap:26px; }
@media (min-width:760px){ .about-grid{ grid-template-columns:repeat(3, 1fr); } }
.about-grid p{ color:var(--ink-soft); }

/* ---------- legal / about pages ---------- */
.legal-wrap{ max-width:720px; }
.legal-page h1{ font-size:clamp(1.8rem, 4vw, 2.4rem); margin:0 0 6px; }
.legal-updated{ color:var(--ink-soft); font-size:.85rem; margin:0 0 28px; }
.legal-page h2{ font-size:1.15rem; margin:28px 0 8px; }
.legal-page p{ color:var(--ink-soft); margin:0 0 4px; }
.legal-page a{ color:var(--teal); }
.legal-disclaimer{
  margin-top:32px; padding:14px 16px; background:var(--paper-2); border:1px solid var(--line);
  border-radius:var(--radius); font-size:.85rem;
}

/* ---------- footer ---------- */
.site-footer{ padding:26px 0; border-top:1px solid var(--line); }
.footer-row{ display:flex; flex-wrap:wrap; gap:14px; align-items:center; justify-content:space-between; color:var(--ink-soft); font-size:.85rem; }
.footer-row nav{ display:flex; flex-wrap:wrap; gap:16px; }
.footer-row a{ color:var(--ink-soft); text-decoration:none; }
.footer-row a:hover{ color:var(--ink); }
.footer-legal{ margin-top:10px; padding-top:10px; border-top:1px solid var(--line); font-size:.8rem; }
.footer-legal nav{ gap:14px; }

/* ---------- toast ---------- */
.toast{
  position:fixed; left:50%; bottom:24px; transform:translate(-50%, 12px);
  background:var(--ink); color:var(--paper); padding:10px 16px; border-radius:8px;
  font-size:.88rem; opacity:0; pointer-events:none; transition:opacity var(--dur) ease, transform var(--dur) ease;
  z-index:50;
}
.toast.show{ opacity:1; transform:translate(-50%, 0); }