/* ===== Shared Design System · PDFOtter / PixOtter / ToolOtter ===== */
:root {
  --accent: #e5484d;          /* per-site override */
  --accent-2: #ff7a45;        /* per-site override */
  --accent-soft: rgba(229, 72, 77, 0.12);

  --bg: #f6f7fb;
  --bg-elev: #ffffff;
  --surface: #ffffff;
  --surface-2: #f2f3f8;
  --border: #e7e8f0;
  --text: #1a1c25;
  --text-dim: #5a5f6e;
  --text-faint: #8b90a0;
  --shadow-sm: 0 1px 2px rgba(20, 22, 40, .06), 0 1px 3px rgba(20, 22, 40, .05);
  --shadow-md: 0 6px 20px rgba(20, 22, 40, .08);
  --shadow-lg: 0 18px 50px rgba(20, 22, 40, .14);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --maxw: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji";
}

:root[data-theme="dark"] {
  --bg: #0d0f17;
  --bg-elev: #151824;
  --surface: #171a27;
  --surface-2: #1f2333;
  --border: #262a3b;
  --text: #eef0f6;
  --text-dim: #a7adbe;
  --text-faint: #6f7688;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 8px 24px rgba(0,0,0,.45);
  --shadow-lg: 0 20px 55px rgba(0,0,0,.55);
  --accent-soft: rgba(229, 72, 77, 0.18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1,h2,h3,h4 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.02em; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; gap: 18px; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; letter-spacing: -.02em; }
.brand .logo {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-size: 1.05rem; box-shadow: var(--shadow-sm);
}
.brand b { color: var(--accent); }
.nav-links { display: flex; gap: 4px; margin-left: 8px; flex: 1; flex-wrap: wrap; }
.nav-links a {
  padding: 8px 12px; border-radius: 10px; color: var(--text-dim); font-weight: 600; font-size: .93rem;
  transition: background .15s, color .15s;
}
.nav-links a:hover { background: var(--surface-2); color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 11px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); cursor: pointer; display: grid; place-items: center;
  font-size: 1.1rem; transition: background .15s, transform .1s;
}
.icon-btn:hover { background: var(--surface-2); }
.icon-btn:active { transform: scale(.94); }
.menu-btn { display: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  padding: 12px 20px; border-radius: 12px; font-weight: 700; font-size: .95rem;
  border: 1px solid transparent; cursor: pointer; transition: transform .1s, box-shadow .2s, background .2s;
  background: var(--surface); color: var(--text); border-color: var(--border);
}
.btn:hover { box-shadow: var(--shadow-sm); }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; border: none;
  box-shadow: 0 6px 18px var(--accent-soft);
}
.btn-primary:hover { box-shadow: 0 10px 26px var(--accent-soft); transform: translateY(-1px); }
.btn-ghost { background: transparent; }
.btn-lg { padding: 15px 28px; font-size: 1.02rem; border-radius: 14px; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 40px; text-align: center; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -40% 0 auto 0; height: 480px; z-index: -1;
  background:
    radial-gradient(560px 260px at 50% 0%, var(--accent-soft), transparent 70%),
    radial-gradient(420px 220px at 80% 10%, color-mix(in srgb, var(--accent-2) 16%, transparent), transparent 70%);
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border); color: var(--text-dim);
  font-weight: 600; font-size: .84rem; margin-bottom: 20px; box-shadow: var(--shadow-sm);
}
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.hero h1 { font-size: clamp(2.1rem, 5vw, 3.5rem); font-weight: 850; margin-bottom: 18px; }
.hero h1 .grad { background: linear-gradient(120deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: clamp(1.02rem, 2vw, 1.22rem); color: var(--text-dim); max-width: 620px; margin: 0 auto 28px; }
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.trust { margin-top: 26px; display: flex; gap: 22px; justify-content: center; flex-wrap: wrap; color: var(--text-faint); font-size: .9rem; font-weight: 600; }
.trust span { display: inline-flex; align-items: center; gap: 7px; }

/* ---------- Tool grid ---------- */
.section { padding: 46px 0; }
.section-head { text-align: center; margin-bottom: 34px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.section-head p { color: var(--text-dim); max-width: 560px; margin: 0 auto; }
.tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(232px, 1fr)); gap: 18px; }
.tool-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; display: flex; flex-direction: column; gap: 12px; position: relative;
  transition: transform .16s, box-shadow .2s, border-color .2s; overflow: hidden;
}
.tool-card::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2)); opacity: 0; transition: opacity .2s;
}
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }
.tool-card:hover::after { opacity: 1; }
.tool-ic {
  width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center; font-size: 1.5rem;
  background: var(--accent-soft); color: var(--accent);
}
.tool-card h3 { font-size: 1.08rem; margin: 0; }
.tool-card p { margin: 0; color: var(--text-dim); font-size: .92rem; flex: 1; }
.tool-card .go { color: var(--accent); font-weight: 700; font-size: .9rem; display: inline-flex; align-items: center; gap: 6px; }

/* ---------- Feature strip ---------- */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.feature { text-align: center; padding: 10px; }
.feature .fic { font-size: 1.8rem; margin-bottom: 10px; }
.feature h4 { margin: 0 0 4px; }
.feature p { color: var(--text-dim); font-size: .92rem; margin: 0; }

/* ---------- Tool page workspace ---------- */
.tool-hero { padding: 40px 0 20px; text-align: center; }
.tool-hero .tool-ic { margin: 0 auto 14px; width: 60px; height: 60px; border-radius: 16px; font-size: 1.9rem; }
.tool-hero h1 { font-size: clamp(1.7rem, 4vw, 2.5rem); }
.tool-hero p { color: var(--text-dim); max-width: 560px; margin: 0 auto; }
.workspace { max-width: 780px; margin: 0 auto 30px; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow-md); }

/* Dropzone */
.dropzone {
  border: 2px dashed color-mix(in srgb, var(--accent) 40%, var(--border));
  border-radius: var(--radius); padding: 48px 24px; text-align: center; cursor: pointer;
  background: var(--surface-2); transition: background .18s, border-color .18s, transform .1s;
}
.dropzone:hover, .dropzone.drag { background: var(--accent-soft); border-color: var(--accent); }
.dropzone.drag { transform: scale(1.01); }
.dropzone .dz-ic { font-size: 2.6rem; margin-bottom: 10px; }
.dropzone h3 { margin: 0 0 4px; }
.dropzone p { color: var(--text-dim); margin: 0 0 16px; font-size: .93rem; }
.dz-hint { font-size: .82rem; color: var(--text-faint); margin-top: 12px; }

/* File list */
.file-list { display: flex; flex-direction: column; gap: 10px; margin: 20px 0; }
.file-item {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.file-item .fi-ic { width: 38px; height: 38px; border-radius: 9px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; font-size: 1.1rem; flex-shrink: 0; }
.file-item .fi-meta { flex: 1; min-width: 0; }
.file-item .fi-name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-size: .92rem; }
.file-item .fi-size { font-size: .8rem; color: var(--text-faint); }
.file-item .fi-x { cursor: pointer; color: var(--text-faint); border: none; background: none; font-size: 1.2rem; padding: 4px 8px; border-radius: 8px; }
.file-item .fi-x:hover { background: var(--border); color: var(--text); }
.file-item .drag-handle { cursor: grab; color: var(--text-faint); }

/* Controls */
.controls { display: flex; flex-direction: column; gap: 18px; margin: 20px 0; }
.ctrl-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.ctrl-label { font-weight: 600; font-size: .95rem; }
.ctrl-label small { display: block; font-weight: 400; color: var(--text-faint); font-size: .82rem; }
input[type="range"] { -webkit-appearance: none; appearance: none; height: 6px; border-radius: 999px; background: var(--surface-2); flex: 1; max-width: 320px; }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); cursor: pointer; box-shadow: var(--shadow-sm); border: 2px solid #fff; }
:root[data-theme="dark"] input[type="range"]::-webkit-slider-thumb { border-color: var(--surface); }
select, input[type="text"], input[type="number"], textarea {
  font-family: var(--font); font-size: .95rem; padding: 11px 13px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text); width: 100%;
}
select:focus, input:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.seg { display: inline-flex; background: var(--surface-2); border: 1px solid var(--border); border-radius: 11px; padding: 4px; gap: 4px; flex-wrap: wrap; }
.seg button { border: none; background: none; padding: 8px 16px; border-radius: 8px; font-weight: 600; cursor: pointer; color: var(--text-dim); font-size: .9rem; }
.seg button.active { background: var(--surface); color: var(--accent); box-shadow: var(--shadow-sm); }

.actions-row { display: flex; gap: 12px; justify-content: center; margin-top: 8px; flex-wrap: wrap; }
.status { text-align: center; margin-top: 16px; color: var(--text-dim); font-size: .92rem; min-height: 22px; }
.status.err { color: var(--accent); }
.progress { height: 8px; background: var(--surface-2); border-radius: 999px; overflow: hidden; margin: 14px 0; display: none; }
.progress.show { display: block; }
.progress-bar { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .3s; }

.result-card { text-align: center; padding: 26px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-2); margin-top: 18px; }
.result-card .ok-ic { font-size: 2.4rem; }
.spinner { width: 20px; height: 20px; border: 2.5px solid rgba(255,255,255,.4); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Ad slots ---------- */
.ad-slot {
  max-width: var(--maxw); margin: 22px auto; padding: 0 20px;
}
.ad-box {
  border: 1px dashed var(--border); border-radius: 12px; background: var(--surface-2);
  min-height: 96px; display: grid; place-items: center; color: var(--text-faint);
  font-size: .8rem; letter-spacing: .08em; text-transform: uppercase;
}
.ad-box.leaderboard { min-height: 96px; }
.ad-box.rect { min-height: 260px; max-width: 336px; margin: 0 auto; }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq details { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 4px 18px; }
.faq summary { cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 1.3rem; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--text-dim); margin: 0 0 14px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); margin-top: 40px; background: var(--bg-elev); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 30px; padding: 46px 0 30px; }
.footer-grid .brand { margin-bottom: 12px; }
.footer-col h5 { font-size: .82rem; text-transform: uppercase; letter-spacing: .07em; color: var(--text-faint); margin: 0 0 14px; }
.footer-col a { display: block; color: var(--text-dim); padding: 5px 0; font-size: .92rem; }
.footer-col a:hover { color: var(--accent); }
.footer-about { color: var(--text-dim); font-size: .92rem; max-width: 280px; }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px; text-align: center; color: var(--text-faint); font-size: .86rem; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(120%);
  background: var(--text); color: var(--bg); padding: 12px 20px; border-radius: 12px;
  font-weight: 600; font-size: .9rem; box-shadow: var(--shadow-lg); z-index: 100; transition: transform .3s; max-width: 90vw;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav-links { display: none; position: absolute; top: 66px; left: 0; right: 0; flex-direction: column;
    background: var(--bg-elev); border-bottom: 1px solid var(--border); padding: 10px 20px; box-shadow: var(--shadow-md); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px; }
  .menu-btn { display: grid; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .panel { padding: 18px; }
  .hero { padding: 48px 0 30px; }
}

.hidden { display: none !important; }


/* ---------- SEO prose ---------- */
.seo-section{padding:40px 0}
.prose{line-height:1.75;max-width:800px;margin:0 auto}
.prose>.intro{font-size:1.08rem;color:var(--text-dim);margin:0 0 8px}
.prose h2{font-size:1.4rem;margin:34px 0 14px}
.prose p{color:var(--text-dim)}
.prose .how{counter-reset:step;list-style:none;padding:0;display:flex;flex-direction:column;gap:12px;margin:0 0 10px}
.prose .how li{position:relative;padding:14px 16px 14px 58px;background:var(--surface);border:1px solid var(--border);border-radius:12px;color:var(--text)}
.prose .how li b{color:var(--text)}
.prose .how li::before{counter-increment:step;content:counter(step);position:absolute;left:14px;top:14px;width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;display:grid;place-items:center;font-weight:700;font-size:.9rem}
.prose .benefits{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px;margin:0}
.prose .benefits li{padding:10px 14px 10px 34px;position:relative;color:var(--text-dim)}
.prose .benefits li::before{content:"\2713";position:absolute;left:10px;top:10px;color:var(--accent);font-weight:800}
.prose .benefits li b{color:var(--text)}


/* ---------- Guide / blog article ---------- */
.breadcrumb{font-size:.85rem;color:var(--text-faint);padding:22px 0 0}
.breadcrumb a{color:var(--text-dim)}
.breadcrumb a:hover{color:var(--accent)}
.article-hero{padding:6px 0 0}
.article-hero h1{font-size:clamp(1.75rem,4vw,2.55rem);margin:10px 0 10px}
.article-meta{display:flex;gap:16px;color:var(--text-faint);font-size:.88rem;margin:0 0 20px;flex-wrap:wrap;align-items:center}
.article-meta .pill{background:var(--accent-soft);color:var(--accent);padding:3px 10px;border-radius:999px;font-weight:700;font-size:.78rem}
.prose h3{font-size:1.14rem;margin:26px 0 8px}
.prose ul:not(.benefits),.prose ol:not(.how){padding-left:22px;color:var(--text-dim)}
.prose ul:not(.benefits) li,.prose ol:not(.how) li{margin:7px 0}
.prose ul:not(.benefits) li b,.prose ol:not(.how) li b{color:var(--text)}
.prose a{color:var(--accent);font-weight:600}
.prose strong{color:var(--text)}
.prose table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.92rem}
.prose th,.prose td{border:1px solid var(--border);padding:9px 12px;text-align:left}
.prose th{background:var(--surface-2);font-weight:700}
.callout{background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent) 30%,var(--border));border-radius:12px;padding:14px 16px;margin:18px 0;color:var(--text)}
.callout b{color:var(--accent)}
.cta-card{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border-radius:18px;padding:26px 24px;text-align:center;margin:30px 0;box-shadow:var(--shadow-md)}
.cta-card h3{color:#fff;margin:0 0 6px;font-size:1.25rem}
.cta-card p{color:rgba(255,255,255,.9);margin:0}
.cta-card .btn{background:#fff;color:var(--accent);margin-top:14px;border:none}
.cta-card .btn:hover{transform:translateY(-1px)}


/* ---------- Footer legal links ---------- */
.footer-bottom a{color:var(--text-dim);font-weight:600}
.footer-bottom a:hover{color:var(--accent)}
.legal-hero{padding:36px 0 8px;text-align:center}
.legal-hero h1{font-size:clamp(1.7rem,4vw,2.4rem)}
.legal-hero p{color:var(--text-dim)}
.legal-updated{color:var(--text-faint);font-size:.9rem;margin-top:6px}