/* Layout: a one-screen writing tool. Slim nav and settings bar, two equal sheets (input, output),
   and a quality-report sidebar on the right. Pricing sits below the fold. */
:root {
  --bg: #FAFAFA;
  --paper: #FFFFFF;
  --sunk: #F4F4F5;
  --ink: #18181B;
  --muted: #71717A;
  --faint: #A1A1AA;
  --line: #E4E4E7;
  --line-strong: #D4D4D8;
  --accent: #6D4AFF;
  --accent-ink: #FFFFFF;
  --accent-soft: rgba(109, 74, 255, 0.10);
  --hl: #FFE58A;
  --add-bg: #DCFCE7; --add-fg: #166534;
  --del-bg: #FEE2E2; --del-fg: #991B1B;
  --ok: #16A34A; --warn: #D97706; --bad: #DC2626;
  --f-sans: "Geist", "Segoe UI", system-ui, -apple-system, sans-serif;
  --f-mono: "Geist Mono", ui-monospace, Menlo, Consolas, monospace;
  --r: 14px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}
@media (prefers-color-scheme: dark) { :root {
  --bg: #0C0C0E; --paper: #141417; --sunk: #1C1C20; --ink: #EDEDF0; --muted: #9A9AA3; --faint: #6B6B73;
  --line: #26262B; --line-strong: #36363C; --accent: #8B6EFF; --accent-ink: #0C0C0E; --accent-soft: rgba(139, 110, 255, 0.14);
  --hl: #5A4A10; --add-bg: #12301F; --add-fg: #86EFAC; --del-bg: #3B1717; --del-fg: #FCA5A5;
  --ok: #4ADE80; --warn: #FBBF24; --bad: #F87171; color-scheme: dark } }

* { box-sizing: border-box }
[hidden] { display: none !important }
html { scroll-behavior: smooth }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--f-sans); font-size: 15px; line-height: 1.55; -webkit-font-smoothing: antialiased }
a { color: inherit }
button { font: inherit; color: inherit }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap }
.mono { font-family: var(--f-mono); font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums }
.gutter, .nav, .subbar, .opts, .app, .pricing { padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)) }

/* ---- Nav ---- */
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--bg) }
.nav { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5; height: 56px; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background: color-mix(in srgb, var(--bg) 85%, transparent); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px) }
.brand { display: inline-flex; align-items: center; gap: 9px; text-decoration: none; font-weight: 650; font-size: 16px; letter-spacing: -0.01em }
.logo { width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center; background: var(--accent); color: #fff }
.nav-links { display: flex; align-items: center; gap: 4px }
.nav-links a { text-decoration: none; color: var(--muted); font-size: 14px; padding: 6px 10px; border-radius: 8px; transition: color .15s, background .15s }
.nav-links a:hover { color: var(--ink); background: var(--sunk) }
.nav-btn { display: inline-flex; align-items: center; gap: 7px; height: 34px; padding: 0 11px; border-radius: 9px; border: 1px solid var(--line); background: var(--paper); font-size: 14px; font-weight: 500; cursor: pointer; transition: border-color .15s }
.nav-btn:hover { border-color: var(--line-strong) }
.count { font-size: 11px; font-weight: 600; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 999px; display: inline-grid; place-items: center; background: var(--accent); color: #fff }
@media (max-width: 460px) { .hide-xs { display: none !important } }

/* ---- Settings bar ---- */
.subbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; padding-block: 4px 12px }
.status { margin: 0 0 0 auto; font-size: 13.5px; color: var(--muted); min-height: 1em; text-align: right }
.status.err { color: var(--bad) }
@media (max-width: 760px) { .status { margin-left: 0; width: 100%; text-align: left } }

.seg { position: relative; display: inline-flex; gap: 2px; padding: 3px; border-radius: 11px; background: var(--sunk); border: 1px solid var(--line); isolation: isolate }
.seg button { position: relative; z-index: 1; display: inline-flex; align-items: center; justify-content: center; gap: 7px; height: 30px; padding: 0 12px; border: 0; border-radius: 8px; background: transparent; color: var(--muted); font-size: 13.5px; font-weight: 500; cursor: pointer; white-space: nowrap; transition: color .2s }
.seg button:hover { color: var(--ink) }
.seg button[aria-pressed="true"], .seg button[aria-selected="true"] { color: var(--ink) }
.seg-thumb { position: absolute; z-index: 0; top: 3px; bottom: 3px; left: 0; width: 0; border-radius: 8px; background: var(--paper); box-shadow: 0 1px 2px rgba(0, 0, 0, .08), 0 0 0 1px var(--line);
  transition: transform .28s var(--ease), width .28s var(--ease) }
.seg.no-anim .seg-thumb { transition: none }
.seg-sm button { height: 26px; padding: 0 10px; font-size: 13px }
.seg-num button { min-width: 38px; padding: 0 8px; font-family: var(--f-mono); font-size: 12.5px }
@media (max-width: 760px) { .subbar .seg { width: 100%; overflow-x: auto } .subbar .seg button { flex: 1 0 auto } }

.lvl { width: 13px; height: 11px; flex: none; --off: var(--line-strong); --on: var(--accent);
  background: linear-gradient(var(--c1, var(--off)), var(--c1, var(--off))) 0 100% / 3px 5px no-repeat,
              linear-gradient(var(--c2, var(--off)), var(--c2, var(--off))) 5px 100% / 3px 8px no-repeat,
              linear-gradient(var(--c3, var(--off)), var(--c3, var(--off))) 10px 100% / 3px 11px no-repeat }
.lvl[data-l="1"] { --c1: var(--on) }
.lvl[data-l="2"] { --c1: var(--on); --c2: var(--on) }
.lvl[data-l="3"] { --c1: var(--on); --c2: var(--on); --c3: var(--on) }

.chip-btn { display: inline-flex; align-items: center; gap: 7px; height: 38px; padding: 0 12px; border-radius: 11px; border: 1px solid var(--line); background: var(--sunk); color: var(--muted); font-size: 13.5px; font-weight: 500; cursor: pointer; transition: color .15s, border-color .15s }
.chip-btn:hover, .chip-btn[aria-expanded="true"] { color: var(--ink); border-color: var(--line-strong) }
.mini-count { font-family: var(--f-mono); font-size: 11px; min-width: 18px; height: 18px; padding: 0 4px; border-radius: 6px; display: inline-grid; place-items: center; background: var(--paper); border: 1px solid var(--line) }

.opts { display: grid; gap: 6px; padding-block: 0 12px; max-width: 760px; animation: drop .2s var(--ease) }
.opts label { font-size: 13px; color: var(--muted) }
@keyframes drop { from { transform: translateY(-4px) } to { transform: none } }
input[type="text"], input[type="password"] { font: inherit; font-size: 14px; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 10px; height: 38px; padding: 0 12px; width: 100%; transition: border-color .15s }
input[type="text"]:focus, input[type="password"]:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px var(--accent-soft) }
input[type="password"] { font-family: var(--f-mono); font-size: 13px }
#sample { font: inherit; font-size: 14px; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; width: 100%; resize: vertical; min-height: 64px; transition: border-color .15s }
#sample:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px var(--accent-soft) }
.sample-count { font-size: 12px; color: var(--muted); justify-self: end }

.keyform { display: flex; gap: 10px; align-items: center; flex: 1 1 360px; min-width: 0 }
.keyform input { flex: 1; min-width: 0 }
.check-label { display: inline-flex; gap: 6px; align-items: center; font-size: 13.5px; color: var(--muted); cursor: pointer; white-space: nowrap }
.check-label input { accent-color: var(--accent) }
.link-btn { border: 0; background: none; color: var(--muted); font-size: 13.5px; cursor: pointer; padding: 4px; text-decoration: underline; text-underline-offset: 3px }

/* ---- App ---- */
.app { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 300px; gap: 12px; padding-block: 0 20px;
  height: calc(100dvh - 56px - 54px - env(safe-area-inset-top, 0px)); min-height: 560px }
.sheet { display: flex; flex-direction: column; min-width: 0; min-height: 0; background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; transition: border-color .2s }
.sheet:focus-within { border-color: var(--line-strong) }
.sheet-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 12px 10px 18px; min-height: 52px; flex-wrap: wrap }
.sheet-head h2 { margin: 0; font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 8px }
.head-tools { display: flex; align-items: center; gap: 6px }
.sheet-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 12px 12px 18px; border-top: 1px solid var(--line); flex-wrap: wrap; min-height: 60px }
.actions { display: flex; gap: 8px; align-items: center; margin-left: auto }

.icon-btn { width: 32px; height: 32px; display: grid; place-items: center; border: 0; border-radius: 8px; background: transparent; color: var(--muted); cursor: pointer; transition: background .15s, color .15s }
.icon-btn:hover { background: var(--sunk); color: var(--ink) }

.ai-badge { font-family: var(--f-mono); font-size: 11.5px; font-weight: 500; border-radius: 7px; padding: 3px 8px; color: var(--faint); background: var(--sunk); white-space: nowrap; transition: color .3s, background .3s }
.ai-badge.ok { color: var(--ok); background: color-mix(in srgb, var(--ok) 12%, transparent) }
.ai-badge.warn { color: var(--warn); background: color-mix(in srgb, var(--warn) 14%, transparent) }
.ai-badge.bad { color: var(--bad); background: color-mix(in srgb, var(--bad) 12%, transparent) }
.example-badge { font-size: 11px; font-weight: 500; color: var(--muted); border: 1px dashed var(--line-strong); border-radius: 6px; padding: 0 6px }

.editor { position: relative; flex: 1; min-height: 0 }
.editor .backdrop, .editor textarea { position: absolute; inset: 0; margin: 0; padding: 6px 20px 18px; font-family: var(--f-sans); font-size: 15.5px; line-height: 1.75;
  white-space: pre-wrap; overflow-wrap: break-word; scrollbar-gutter: stable; border: 0; letter-spacing: normal }
.editor .backdrop { overflow: hidden; color: transparent; pointer-events: none }
.editor .backdrop mark { background: var(--hl); color: transparent; border-radius: 3px }
.editor textarea { background: transparent; color: var(--ink); resize: none; overflow-y: auto; width: 100%; height: 100%; outline: none }
.editor textarea::placeholder { color: var(--faint) }
.drop { position: absolute; inset: 8px; border-radius: 12px; display: grid; place-content: center; justify-items: center; gap: 8px; font-weight: 600; color: var(--accent);
  background: color-mix(in srgb, var(--paper) 90%, transparent); border: 2px dashed var(--accent); z-index: 2 }

.output { flex: 1; min-height: 0; overflow-y: auto; padding: 6px 20px 18px; white-space: pre-wrap; overflow-wrap: break-word; font-size: 15.5px; line-height: 1.75 }
.output.placeholder { color: var(--faint); display: grid; place-items: center; text-align: center }
.output ins { background: var(--add-bg); color: var(--add-fg); text-decoration: none; border-radius: 3px }
.output del { background: var(--del-bg); color: var(--del-fg); border-radius: 3px }
.output mark { background: var(--hl); color: inherit; border-radius: 3px }
.output.streaming::after { content: ""; display: inline-block; width: 2px; height: 1.15em; margin-left: 2px; vertical-align: -0.2em; background: var(--accent); animation: blink 1s steps(1) infinite }
@keyframes blink { 50% { opacity: 0 } }
.output.fresh { animation: fadeup .45s var(--ease) }
@keyframes fadeup { from { transform: translateY(4px) } to { transform: none } }

.vtabs { display: flex; gap: 6px; padding: 0 12px 8px 18px; overflow-x: auto }
.vtab { flex: 1 1 0; min-width: 110px; display: flex; align-items: center; justify-content: space-between; gap: 8px; height: 34px; padding: 0 10px; border-radius: 9px; border: 1px solid var(--line); background: transparent; color: var(--muted); cursor: pointer; font-size: 13px; font-weight: 500; transition: border-color .15s, color .15s, background .15s }
.vtab:hover { color: var(--ink) }
.vtab[aria-selected="true"] { color: var(--ink); border-color: var(--accent); background: var(--accent-soft) }
.vtab .ai-badge { font-size: 10.5px; padding: 1px 6px }
.vtab.err { color: var(--bad) }

.wc { display: flex; align-items: center; gap: 10px; min-width: 0 }
.wc-bar { width: 72px; height: 4px; border-radius: 999px; background: var(--line); overflow: hidden; flex: none }
.wc-bar i { display: block; height: 100%; width: 0; border-radius: inherit; background: var(--accent); transition: width .3s var(--ease) }
.wc.over .mono { color: var(--bad) }
.wc.over .wc-bar i { background: var(--bad) }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 7px; height: 38px; padding: 0 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); font-size: 14px; font-weight: 500; cursor: pointer; text-decoration: none; transition: border-color .15s, background .15s, transform .1s, box-shadow .2s }
.btn:hover:not(:disabled) { border-color: var(--line-strong) }
.btn:active:not(:disabled) { transform: scale(.98) }
.btn.ghost { border-color: transparent; background: transparent; color: var(--muted) }
.btn.ghost:hover:not(:disabled) { color: var(--ink); background: var(--sunk) }
.btn.primary { position: relative; overflow: hidden; border: 0; background: var(--accent); color: #fff; padding: 0 20px; font-weight: 600; box-shadow: 0 6px 18px -8px color-mix(in srgb, var(--accent) 70%, transparent) }
.btn.primary:hover:not(:disabled) { box-shadow: 0 10px 24px -8px color-mix(in srgb, var(--accent) 80%, transparent); filter: brightness(1.06) }
.btn.primary.loading::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, transparent 20%, rgba(255, 255, 255, .28) 50%, transparent 80%); animation: shimmer 1.2s linear infinite }
@keyframes shimmer { from { transform: translateX(-100%) } to { transform: translateX(100%) } }
.btn:disabled { opacity: .5; cursor: default }
.btn.primary.loading:disabled { opacity: 1 }
.spin { width: 14px; height: 14px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: spin .8s linear infinite; flex: none }
@keyframes spin { to { transform: rotate(360deg) } }

/* ---- Report sidebar ---- */
.side { min-height: 0; overflow-y: auto; display: flex; flex-direction: column; padding: 2px 4px 0 6px; scrollbar-width: thin }
.block { padding: 14px 0 16px; border-bottom: 1px solid var(--line); display: grid; gap: 10px }
.block:first-child { padding-top: 4px }
.block:last-child { border-bottom: 0 }
.block-head { display: flex; justify-content: space-between; align-items: center; gap: 8px }
.block-head h3 { margin: 0; font-size: 13px; font-weight: 600 }
.note { margin: 0; font-size: 13px; color: var(--muted) }
.fine { margin: 0; font-size: 11.5px; color: var(--faint) }
.pill { font-size: 11.5px; font-weight: 500; border-radius: 6px; padding: 2px 7px; white-space: nowrap; transition: color .3s, background .3s }
.pill.ok { color: var(--ok); background: color-mix(in srgb, var(--ok) 12%, transparent) }
.pill.warn { color: var(--warn); background: color-mix(in srgb, var(--warn) 14%, transparent) }
.pill.bad { color: var(--bad); background: color-mix(in srgb, var(--bad) 12%, transparent) }
.pill.idle { color: var(--faint); background: var(--sunk) }
.label, .mlabel { font-size: 11.5px; color: var(--muted) }
.label { display: block; text-transform: uppercase; letter-spacing: .06em; font-weight: 600; margin-top: 2px }

.meter-row { display: grid; grid-template-columns: 44px 1fr 30px; gap: 10px; align-items: center }
.meter { position: relative; height: 8px; border-radius: 999px; background: var(--sunk); overflow: hidden }
.meter i { position: absolute; inset: 0 auto 0 0; width: 0; border-radius: inherit; background: var(--faint); transition: width .8s var(--ease), background .3s }
.meter i.ok { background: var(--ok) } .meter i.warn { background: var(--warn) } .meter i.bad { background: var(--bad) }
.meter-num { font-family: var(--f-mono); font-size: 13px; font-weight: 500; text-align: right; font-variant-numeric: tabular-nums }

.score { display: flex; align-items: center; gap: 14px }
.ring { width: 54px; height: 54px; flex: none; position: relative }
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg) }
.ring circle { fill: none; stroke-width: 6 }
.ring .track { stroke: var(--sunk) }
.ring .val { stroke: var(--accent); stroke-linecap: round; transition: stroke-dashoffset .9s var(--ease) }
.ring span { position: absolute; inset: 0; display: grid; place-items: center; font-family: var(--f-mono); font-weight: 500; font-size: 14px; font-variant-numeric: tabular-nums }
.detail { display: grid; gap: 4px }
.detail ul { margin: 0; padding-left: 16px; font-size: 13px; display: grid; gap: 2px }

.chips { display: flex; flex-wrap: wrap; gap: 5px }
.chips:empty { display: none }
.chip { font-size: 12.5px; background: var(--hl); color: var(--ink); border-radius: 6px; padding: 1px 7px }
.chip.missing { background: var(--del-bg); color: var(--del-fg) }
.chip.kept { background: var(--add-bg); color: var(--add-fg) }

.rhythm { display: grid; gap: 6px }
.rhythm-row { display: grid; grid-template-columns: 44px 1fr; gap: 10px; align-items: end }
.bars { display: flex; align-items: flex-end; gap: 2px; height: 34px; border-bottom: 1px solid var(--line); overflow: hidden }
.bars i { display: block; flex: 1 1 0; max-width: 14px; min-width: 3px; background: var(--line-strong); border-radius: 2px 2px 0 0; transition: height .5s var(--ease) }
.bars.out i { background: var(--accent) }

/* ---- Responsive app ---- */
@media (max-width: 1180px) {
  .app { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); height: auto; min-height: 0 }
  .sheet { height: 520px }
  .side { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0 24px; overflow: visible; padding: 6px 2px 0 }
  .block, .block:first-child { padding: 14px 0; border-bottom: 1px solid var(--line) }
}
@media (max-width: 760px) {
  .app { grid-template-columns: minmax(0, 1fr) }
  .sheet { height: 360px }
  .sheet-foot .actions { width: 100% }
  .sheet-foot .actions .btn.primary { flex: 1 }
}

/* ---- Pricing ---- */
.pricing { padding-block: 48px 64px; border-top: 1px solid var(--line); max-width: 1200px; margin: 24px auto 0 }
.pricing-head { display: flex; justify-content: space-between; align-items: end; gap: 8px 24px; flex-wrap: wrap; margin-bottom: 20px }
.pricing-head h2 { margin: 0; font-size: clamp(22px, 3vw, 28px); font-weight: 650; letter-spacing: -0.02em }
.pricing-head p { margin: 0; color: var(--muted) }
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 12px }
.plan { padding: 22px; border-radius: var(--r); background: var(--paper); border: 1px solid var(--line); display: flex; flex-direction: column; gap: 14px; transition: border-color .2s, transform .2s var(--ease) }
.plan:hover { border-color: var(--line-strong); transform: translateY(-2px) }
.plan.featured { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft) }
.plan h3 { margin: 0; font-size: 15px; font-weight: 600; display: flex; align-items: center; gap: 8px }
.plan-tag { font-size: 11px; font-weight: 500; color: var(--accent); background: var(--accent-soft); border-radius: 6px; padding: 1px 7px }
.price { margin: 0; display: flex; align-items: baseline; gap: 6px; color: var(--muted) }
.price b { font-size: 34px; font-weight: 650; letter-spacing: -0.03em; color: var(--ink); font-variant-numeric: tabular-nums }
.plan ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 14px; flex: 1 }
.plan li { display: flex; gap: 9px; align-items: start; color: var(--muted) }
.plan li::before { content: ""; flex: none; width: 14px; height: 14px; margin-top: 4px; background: var(--accent); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center / contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center / contain no-repeat }
.plan-btn { width: 100% }

/* ---- History drawer ---- */
.drawer { margin: 0 0 0 auto; height: 100%; max-height: 100%; width: min(400px, 100vw); max-width: 100vw; border: 0; padding: 0; background: var(--paper); color: var(--ink); border-left: 1px solid var(--line); flex-direction: column }
.drawer[open] { display: flex; animation: slidein .3s var(--ease) }
@keyframes slidein { from { transform: translateX(40px) } to { transform: none } }
.drawer::backdrop { background: rgba(0, 0, 0, .35); backdrop-filter: blur(2px) }
.drawer-head { display: flex; justify-content: space-between; align-items: center; padding: max(14px, env(safe-area-inset-top, 0px)) 14px 2px 20px }
.drawer-head h2 { margin: 0; font-size: 17px; font-weight: 600 }
.drawer-note { margin: 0; padding: 0 20px 12px; font-size: 13px; color: var(--muted); border-bottom: 1px solid var(--line) }
.history-list { list-style: none; margin: 0; padding: 10px; overflow-y: auto; flex: 1; display: grid; gap: 6px; align-content: start }
.h-item { border-radius: 11px; padding: 12px; display: grid; gap: 6px; border: 1px solid var(--line); transition: border-color .15s }
.h-item:hover { border-color: var(--line-strong) }
.h-meta { display: flex; justify-content: space-between; gap: 8px; font-size: 12px; color: var(--muted); flex-wrap: wrap }
.h-text { margin: 0; font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden }
.h-actions { display: flex; gap: 6px; justify-content: flex-end }
.h-actions .btn { height: 30px; padding: 0 10px; font-size: 13px }
.history-empty { padding: 40px 28px; text-align: center; color: var(--muted); display: grid; justify-items: center; gap: 8px; flex: 1; align-content: start }
.history-empty p { margin: 0; font-size: 14px }
.drawer-foot { padding: 12px 20px max(14px, env(safe-area-inset-bottom, 0px)); border-top: 1px solid var(--line); display: flex; justify-content: flex-end }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important } html { scroll-behavior: auto } }
@media (max-width: 440px) { .subbar .seg button { padding: 0 6px; font-size: 12.5px; gap: 5px } }

/* ---- Placement pass ---- */
.toast { position: fixed; left: 50%; bottom: max(20px, env(safe-area-inset-bottom, 0px)); z-index: 20; max-width: min(520px, calc(100vw - 32px));
  transform: translate(-50%, 12px); opacity: 0; pointer-events: none; padding: 10px 16px; border-radius: 12px; font-size: 14px; font-weight: 500;
  background: var(--ink); color: var(--bg); box-shadow: 0 12px 32px -12px rgba(0, 0, 0, .45); transition: opacity .25s var(--ease), transform .25s var(--ease) }
.toast.show { opacity: 1; transform: translate(-50%, 0) }
.toast.err { background: var(--bad); color: #fff }

.empty { position: absolute; inset: 0; z-index: 1; display: grid; place-content: center; justify-items: center; gap: 14px; padding: 20px; text-align: center; pointer-events: none }
.empty p { margin: 0; color: var(--faint); font-size: 14.5px }
.empty-actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center }
.empty button { pointer-events: auto }
.empty .link-btn { color: var(--accent); text-decoration: none; font-weight: 500 }
.editor textarea:focus + .empty, .editor:has(textarea:focus) .empty p { color: var(--faint) }

.btn.accent { border-color: var(--accent); color: var(--accent); background: var(--accent-soft) }
.btn.accent:hover:not(:disabled) { border-color: var(--accent) }

.side-title { margin: 0; padding: 0 0 4px; font-size: 11.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .07em; color: var(--faint) }
.side-title span { text-transform: none; letter-spacing: 0; font-weight: 500; color: var(--accent); margin-left: 4px }
@media (max-width: 1180px) { .side-title { grid-column: 1 / -1; padding-top: 8px } }

/* ---- Layout v3: settings in the input sheet, Humanize in the middle, report below ---- */
.app { grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 14px; height: auto; min-height: 0; padding-block: 6px 0; align-items: stretch }
.sheet { height: clamp(440px, calc(100dvh - 56px - 150px), 780px) }
.opts { padding: 10px 18px 2px; border-top: 1px solid var(--line); max-width: none; animation: drop .2s var(--ease) }
.settings { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 10px 12px; border-top: 1px solid var(--line) }
.settings .seg button { height: 28px; padding: 0 10px; font-size: 13px }
.settings .seg-num button { min-width: 34px; padding: 0 6px }
.settings .chip-btn { height: 36px; padding: 0 10px }
.settings .wc { margin-left: auto; flex-direction: row }
.select select { appearance: none; -webkit-appearance: none; height: 36px; padding: 0 30px 0 12px; border-radius: 11px; border: 1px solid var(--line); background: var(--sunk); color: var(--ink); font: inherit; font-size: 13.5px; font-weight: 500; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2371717A' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center; transition: border-color .15s }
.select select:hover { border-color: var(--line-strong) }

.go-col { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px }
.go { position: relative; overflow: hidden; width: 84px; height: 84px; border: 0; border-radius: 24px; background: var(--accent); color: #fff; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; font-size: 12.5px; font-weight: 600;
  box-shadow: 0 12px 28px -12px color-mix(in srgb, var(--accent) 80%, transparent); transition: transform .2s var(--ease), box-shadow .2s, filter .2s }
.go:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 16px 32px -12px color-mix(in srgb, var(--accent) 90%, transparent); filter: brightness(1.06) }
.go:hover:not(:disabled) svg { transform: translateX(3px) }
.go svg { transition: transform .2s var(--ease) }
.go:active:not(:disabled) { transform: scale(.97) }
.go:disabled { cursor: default }
.go.loading::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, transparent 20%, rgba(255, 255, 255, .28) 50%, transparent 80%); animation: shimmer 1.2s linear infinite }
.go .spin { width: 20px; height: 20px; border-width: 2.5px }

/* Report row */
.report { padding-block: 22px 40px; display: grid; gap: 14px }
.report-head { display: flex; align-items: baseline; gap: 6px 14px; flex-wrap: wrap }
.report-head h2 { margin: 0; font-size: 15px; font-weight: 600 }
.report-head h2 span { font-weight: 500; color: var(--accent); font-size: 13.5px; margin-left: 4px }
.report-head p { margin: 0; font-size: 13px; color: var(--faint) }
.report-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; align-items: start }
.report .block, .report .block:first-child { padding: 16px; border: 1px solid var(--line); border-radius: var(--r); background: var(--paper); align-content: start; transition: border-color .2s }
.report .block:last-child { border-bottom: 1px solid var(--line) }
.report .block:hover { border-color: var(--line-strong) }
@media (max-width: 1320px) { .report-grid { grid-template-columns: repeat(3, minmax(0, 1fr)) } }
@media (max-width: 900px) { .report-grid { grid-template-columns: repeat(2, minmax(0, 1fr)) } }
@media (max-width: 560px) { .report-grid { grid-template-columns: minmax(0, 1fr) } }

/* Tablet and phone: stack, Humanize becomes a wide bar between the sheets */
@media (max-width: 1180px) { .app { grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) } .sheet { height: 520px } }
@media (max-width: 860px) {
  .app { grid-template-columns: minmax(0, 1fr); gap: 10px }
  .sheet { height: auto; min-height: 0 }
  .editor { height: 260px; flex: none }
  .output { height: 280px; flex: none }
  .go-col { flex-direction: row }
  .go { width: 100%; height: 52px; flex-direction: row; border-radius: 14px; font-size: 15px; gap: 10px }
  .go svg { transform: rotate(90deg) }
  .go:hover:not(:disabled) svg { transform: rotate(90deg) translateX(3px) }
  .settings .wc { margin-left: 0; width: 100% }
}
@media (max-width: 440px) { .settings .seg button { padding: 0 7px; font-size: 12.5px } }

/* Pricing page */
.pricing { border-top: 0; margin-top: 0; padding-block: 40px 72px }
.pricing-head h1 { margin: 0; font-size: clamp(26px, 4vw, 36px); font-weight: 650; letter-spacing: -0.02em }
a.nav-btn { text-decoration: none; color: var(--ink) }
.report { padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)) }

/* ---- Report v4: four stat tiles, problems only ---- */
.report { padding-block: 18px 36px; gap: 12px }
.report-head h2 { font-size: 13px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .07em }
.report-head h2 span { text-transform: none; letter-spacing: 0; font-size: 13px }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; align-items: start }
@media (max-width: 1100px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)) } }
@media (max-width: 520px) { .stats { grid-template-columns: minmax(0, 1fr) } }
.stat { display: grid; gap: 10px; align-content: start; padding: 16px 18px; border-radius: var(--r); background: var(--paper); border: 1px solid var(--line); transition: border-color .2s, transform .25s var(--ease) }
.stat:hover { border-color: var(--line-strong); transform: translateY(-1px) }
.stat-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); font-weight: 500 }
.stat-val { display: flex; align-items: center; gap: 8px; min-height: 40px }
.stat-val b { font-size: 30px; font-weight: 650; letter-spacing: -0.03em; line-height: 1; font-variant-numeric: tabular-nums }
.stat-val .from { font-size: 18px; font-weight: 500; color: var(--faint); font-variant-numeric: tabular-nums; text-decoration: line-through; text-decoration-color: color-mix(in srgb, var(--faint) 60%, transparent) }
.stat-val svg { color: var(--faint); flex: none }
.stat-val .unit { font-size: 14px; color: var(--muted); align-self: flex-end; padding-bottom: 3px }
.ring-val .ring { width: 40px; height: 40px }
.ring-val .ring circle { stroke-width: 7 }
.duo { position: relative; height: 6px; border-radius: 999px; background: var(--sunk); overflow: hidden }
.duo i { position: absolute; inset: 0 auto 0 0; width: 0; border-radius: inherit; background: var(--faint); transition: width .8s var(--ease) }
.duo i.ghost { opacity: .28 }
.duo i.ok { background: var(--ok) } .duo i.warn { background: var(--warn) } .duo i.bad { background: var(--bad) }
.why { margin: 0; font-size: 13px; color: var(--muted); line-height: 1.5 }
.stat .detail:empty { display: none }
.stat .label { margin-top: 0 }
.report .fine { margin: 0 }

/* ---- Sentence alternatives ---- */
.sheet { position: relative }
.sent { cursor: pointer; border-radius: 4px; transition: background .15s, box-shadow .15s; -webkit-box-decoration-break: clone; box-decoration-break: clone }
.sent:hover, .sent:focus-visible { background: var(--accent-soft); outline: none }
.sent.active { background: var(--accent-soft); box-shadow: 0 0 0 1.5px var(--accent) }
.foot-info { display: flex; align-items: center; gap: 6px 14px; flex-wrap: wrap; min-width: 0 }
.sent-hint { display: inline-flex; align-items: center; gap: 5px; font-size: 12.5px; color: var(--faint) }
.alt { position: absolute; z-index: 4; display: grid; gap: 4px; padding: 8px; border-radius: 14px; background: var(--paper); border: 1px solid var(--line-strong);
  box-shadow: 0 18px 44px -16px rgba(0, 0, 0, .35); animation: pop .18s var(--ease) }
@keyframes pop { from { transform: translateY(4px) scale(.98) } to { transform: none } }
.alt-head { display: flex; align-items: center; justify-content: space-between; padding: 0 0 0 8px; font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .06em }
.alt-head .icon-btn { width: 28px; height: 28px }
.alt-body { display: grid; gap: 4px }
.alt-opt { text-align: left; border: 1px solid transparent; background: var(--sunk); color: var(--ink); border-radius: 10px; padding: 10px 12px; font-size: 14.5px; line-height: 1.5; cursor: pointer; transition: border-color .15s, background .15s }
.alt-opt:hover, .alt-opt:focus-visible { border-color: var(--accent); background: var(--accent-soft); outline: none }
.alt-wait { margin: 0; display: flex; align-items: center; gap: 10px; padding: 12px 8px; font-size: 14px; color: var(--muted) }
.alt-err { margin: 0; padding: 10px 8px; font-size: 14px; color: var(--bad) }

/* ---- Content pages (features, FAQ) ---- */
.page { max-width: 1080px; margin: 0 auto; padding: 32px max(20px, env(safe-area-inset-right, 0px)) 72px max(20px, env(safe-area-inset-left, 0px)); display: grid; gap: 48px }
.page-hero { display: grid; gap: 14px; justify-items: start; max-width: 680px; padding-top: 24px }
.page-hero h1 { margin: 0; font-size: clamp(30px, 5vw, 46px); font-weight: 700; letter-spacing: -0.035em; line-height: 1.05; text-wrap: balance }
.page-hero p { margin: 0; font-size: 17px; color: var(--muted); line-height: 1.6 }
.page-hero a:not(.btn) { color: var(--accent) }
.page-hero .btn, .page-cta .btn { height: 44px; padding: 0 22px; font-size: 15px }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px }
.feature-card { padding: 22px; border-radius: var(--r); background: var(--paper); border: 1px solid var(--line); display: grid; gap: 8px; align-content: start; transition: border-color .2s, transform .25s var(--ease) }
.feature-card:hover { border-color: var(--line-strong); transform: translateY(-2px) }
.feature-card h2 { margin: 0; font-size: 16px; font-weight: 600 }
.feature-card p { margin: 0; font-size: 14.5px; color: var(--muted); line-height: 1.6 }
.f-icon { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; color: var(--accent); background: var(--accent-soft); margin-bottom: 6px }
.steps-band h2, .page-cta h2 { margin: 0 0 16px; font-size: clamp(22px, 3vw, 28px); font-weight: 650; letter-spacing: -0.02em }
.steps-list { margin: 0; padding: 0; list-style: none; counter-reset: s; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px }
.steps-list li { counter-increment: s; padding: 20px; border-radius: var(--r); border: 1px dashed var(--line-strong); color: var(--muted); font-size: 14.5px; line-height: 1.6 }
.steps-list li::before { content: counter(s); display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 600; font-size: 13px; margin-bottom: 10px }
.steps-list b { color: var(--ink); font-weight: 600 }
.page-cta { text-align: center; padding: 40px 20px; border-radius: 20px; background: var(--paper); border: 1px solid var(--line) }
.faq { display: grid; gap: 8px; max-width: 820px }
.faq details { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 0 18px; transition: border-color .2s }
.faq details[open] { border-color: var(--line-strong) }
.faq summary { cursor: pointer; list-style: none; padding: 15px 0; font-weight: 550; display: flex; justify-content: space-between; gap: 12px }
.faq summary::-webkit-details-marker { display: none }
.faq summary::after { content: "+"; font-size: 20px; line-height: 1; color: var(--muted); transition: transform .2s var(--ease) }
.faq details[open] summary::after { transform: rotate(45deg) }
.faq details p { margin: 0 0 16px; color: var(--muted); font-size: 15px; line-height: 1.65 }
@media (max-width: 640px) { .hide-sm { display: none !important } }

/* ---- Footers v5: one row each. Left: controls, word count at the far right. Right: counts, then actions.
   Every control is 36px tall. ---- */
:root { --ctl: 36px }
.settings, .sheet-foot { display: flex; flex-direction: row; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding: 12px 14px; border-top: 1px solid var(--line); min-height: 0; container-type: inline-size }
.foot-row.controls { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; flex: 1 1 auto; min-width: 0 }
.settings .wc { margin-left: auto; width: auto; padding-left: 4px }
.foot-info { flex: 1 1 auto; padding-left: 4px }
.sheet-foot .actions { margin-left: auto; justify-content: flex-end; flex-wrap: wrap }
@container (max-width: 760px) { .sent-hint { display: none } }
/* The word count shrinks before it would wrap: first the bar goes, then the word "words". */
.settings .wc { flex: none; white-space: nowrap }
@container (max-width: 780px) { .settings .wc-bar { display: none } }
@container (max-width: 640px) {
  .settings .wc { order: -1; width: 100%; margin-left: 0 }
  .settings .wc-bar { display: block }
}

.settings .seg { height: var(--ctl); padding: 3px; border-radius: 10px; align-items: stretch }
.settings .seg button { height: auto; padding: 0 11px; font-size: 13px; border-radius: 7px }
.settings .seg-num button { min-width: 36px; padding: 0 6px }
.seg-thumb { border-radius: 7px }
.select select { height: var(--ctl); border-radius: 10px; font-size: 13px }
.settings .chip-btn { height: var(--ctl); border-radius: 10px; padding: 0 12px; font-size: 13px }
.sheet-foot .btn { height: var(--ctl); padding: 0 14px; border-radius: 10px; font-size: 13.5px; background: var(--paper); border-color: var(--line); color: var(--ink) }
.sheet-foot .btn:hover:not(:disabled) { background: var(--sunk); border-color: var(--line-strong) }
.sheet-foot .btn.accent { border-color: var(--accent); color: var(--accent); background: var(--accent-soft) }
.wc .mono, .foot-info .mono { font-size: 12px }

/* Report: every card is title, number, then one row of tags, so no card is left half empty */
.stats { align-items: stretch }
.stat { display: flex; flex-direction: column; gap: 12px; position: relative }
.stat .chips { margin-top: auto }
.chip { font-size: 12px; line-height: 20px; padding: 0 8px; border-radius: 6px; background: var(--sunk); color: var(--muted); border: 1px solid var(--line) }
.chip.kept { background: var(--add-bg); color: var(--add-fg); border-color: transparent }
.chip.missing { background: var(--del-bg); color: var(--del-fg); border-color: transparent }
.chip.warn { background: var(--hl); color: var(--ink); border-color: transparent }
.chip.gone { text-decoration: line-through; text-decoration-color: color-mix(in srgb, var(--muted) 70%, transparent) }
.chip.more { background: transparent }
.duo + .chips { margin-top: 2px }
.with-info { display: inline-flex; align-items: center; gap: 6px }
.info { position: static; display: inline-grid; place-items: center; width: 15px; height: 15px; border-radius: 50%; border: 1px solid var(--line-strong); color: var(--faint); font: 600 9.5px/1 var(--f-mono); cursor: help; outline: none }
.info:hover, .info:focus-visible { color: var(--ink); border-color: var(--muted) }
.info .tip { position: absolute; z-index: 5; left: 12px; right: 12px; top: 44px; padding: 10px 12px; border-radius: 10px; background: var(--ink); color: var(--paper); font: 400 12px/1.5 var(--f-sans); text-align: left;
  box-shadow: 0 12px 30px -12px rgba(0, 0, 0, .4); opacity: 0; visibility: hidden; transform: translateY(4px); transition: opacity .15s, transform .15s, visibility .15s; pointer-events: none }
.info:hover .tip, .info:focus-visible .tip { opacity: 1; visibility: visible; transform: none }

@media (max-width: 520px) {
  .foot-row.controls > * { flex: 1 1 auto }
  .settings .seg button { flex: 1 0 auto; padding: 0 8px }
  .settings .wc { margin-left: 0; width: 100% }
  .sheet-foot .actions { display: grid; grid-template-columns: 1fr 1fr; width: 100% }
  .sheet-foot .actions .btn { width: 100%; padding: 0 10px }
  .sheet-foot .actions .btn[hidden] { display: none }
}

/* ---- Site polish v1 ---- */
/* One content width for every page */
:root { --page-w: 1080px }
.page { max-width: var(--page-w); gap: 56px }
.page-section h2 { margin: 0 0 16px; font-size: clamp(20px, 2.6vw, 24px); font-weight: 650; letter-spacing: -0.02em }
.faq { max-width: none }
.faq details p { max-width: 72ch }

/* Tool page headline: one quiet line, so the tool stays the hero */
.tool-head { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 14px; padding: 18px max(20px, env(safe-area-inset-right, 0px)) 14px max(20px, env(safe-area-inset-left, 0px)) }
.tool-head h1 { margin: 0; font-size: clamp(20px, 2.2vw, 24px); font-weight: 650; letter-spacing: -0.025em; line-height: 1.2 }
.tool-head p { margin: 0; font-size: 14px; color: var(--muted) }
/* Shorter sheets, so the report starts on the first screen */
.sheet { height: clamp(400px, calc(100dvh - 56px - 64px - 150px), 640px) }
@media (max-width: 1180px) { .sheet { height: 500px } }
@media (max-width: 860px) { .sheet { height: auto } .tool-head { padding-top: 14px } .tool-head p { font-size: 13.5px } }

/* Phone menu: Features, Pricing and FAQ live behind one button */
.nav-menu { position: relative; display: none }
.nav-menu summary { list-style: none; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); cursor: pointer }
.nav-menu summary::-webkit-details-marker { display: none }
.nav-menu[open] summary { border-color: var(--line-strong) }
.nav-menu-list { position: absolute; right: 0; top: calc(100% + 8px); z-index: 10; min-width: 180px; display: grid; padding: 6px; border-radius: 12px; background: var(--paper); border: 1px solid var(--line-strong); box-shadow: 0 18px 40px -16px rgba(0, 0, 0, .35); animation: pop .15s var(--ease) }
.nav-menu-list a { color: var(--ink) !important; padding: 9px 12px !important; font-size: 14.5px !important }
@media (max-width: 640px) { .nav-menu { display: block } .nav-links { gap: 8px } }

/* Footer on every page */
.site-foot { border-top: 1px solid var(--line); margin-top: 24px }
.site-foot-in { max-width: var(--page-w); margin: 0 auto; padding: 28px max(20px, env(safe-area-inset-right, 0px)) 36px max(20px, env(safe-area-inset-left, 0px));
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px 32px; align-items: start }
.foot-brand { display: grid; gap: 8px; max-width: 420px }
.foot-brand .brand { font-size: 14px }
.foot-brand .logo { width: 22px; height: 22px; border-radius: 6px }
.foot-brand p { margin: 0; font-size: 13.5px; color: var(--muted); line-height: 1.55 }
.foot-links { display: flex; flex-wrap: wrap; gap: 4px 18px }
.foot-links a { color: var(--muted); text-decoration: none; font-size: 13.5px }
.foot-links a:hover { color: var(--ink) }
.foot-copy { grid-column: 1 / -1; margin: 0; font-size: 12.5px; color: var(--faint) }
@media (max-width: 640px) { .site-foot-in { grid-template-columns: minmax(0, 1fr) } }
body:has(main.app) .site-foot-in { max-width: none }

/* Features: a 3 x 3 grid of even cards */
.feature-grid { grid-template-columns: repeat(3, minmax(0, 1fr)) }
@media (max-width: 900px) { .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)) } }
@media (max-width: 560px) { .feature-grid { grid-template-columns: minmax(0, 1fr) } }
.feature-card p { margin: 0 }

/* Pricing in the shared page layout */
.pricing-body { display: grid }
.plans { grid-template-columns: repeat(3, minmax(0, 1fr)) }
@media (max-width: 860px) { .plans { grid-template-columns: minmax(0, 1fr) } }
.plan-btn.soon, .plan-btn.soon:disabled { opacity: 1; background: transparent; border: 1px dashed var(--line-strong); color: var(--faint); cursor: not-allowed; box-shadow: none }
.plan ul { align-content: start }