/* ============================================================
   Toolvium — Premium redesign (v19)
   Design system: Inter, #F8FAFC bg, #111827 ink, #64748B muted,
   #635BFF primary accent, #0EA5E9 secondary accent, #E2E8F0 line.
   Tool-engine rules from earlier versions are appended below
   unchanged, so all 149 tools keep working exactly as before.
   ============================================================ */
:root{
  --ink:#111827; --muted:#64748B; --accent:#635BFF; --accent2:#0EA5E9;
  --bg:#F8FAFC; --card:#FFFFFF; --line:#E2E8F0; --ok:#0E7A3D; --err:#B3261E;
  --dark:#101828; --accent-soft:rgba(99,91,255,.10); --accent-soft2:rgba(14,165,233,.10);
  --shadow-sm:0 1px 2px rgba(16,24,40,.05); --shadow-md:0 8px 24px rgba(16,24,40,.08);
  --shadow-lg:0 20px 44px rgba(16,24,40,.12);
  --radius:16px; --radius-sm:12px;
}
[data-theme="dark"]{
  --ink:#F1F5F9; --muted:#94A3B8; --accent:#8B85FF; --accent2:#38BDF8;
  --bg:#0B1220; --card:#111C30; --line:#1E293B; --ok:#4ADE80; --err:#F87171;
  --dark:#0B1220; --accent-soft:rgba(139,133,255,.16); --accent-soft2:rgba(56,189,248,.14);
  --shadow-sm:0 1px 2px rgba(0,0,0,.35); --shadow-md:0 8px 24px rgba(0,0,0,.4);
  --shadow-lg:0 20px 44px rgba(0,0,0,.5);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--accent);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0;color:#fff;text-decoration:none}
#scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));z-index:120}

/* ---------- Header / navigation ---------- */
.site-header{background:rgba(255,255,255,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100}
[data-theme="dark"] .site-header{background:rgba(11,18,32,.86)}
.header-in{display:flex;align-items:center;gap:24px;min-height:68px}
.logo{display:flex;align-items:center;gap:9px;font-size:23px;font-weight:800;color:var(--ink);letter-spacing:-.5px;flex:none}
.logo:hover{text-decoration:none}
.logo-mark{width:32px;height:32px;flex:none}
.logo span{color:var(--accent)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.main-nav> a,.mega-btn{color:var(--muted);font-weight:600;font-size:15px;padding:9px 13px;border-radius:10px;background:none;border:none;cursor:pointer;font-family:inherit}
.main-nav> a:hover,.mega-btn:hover{color:var(--ink);background:var(--accent-soft);text-decoration:none}
.has-mega{position:relative}
.mega-panel{display:none;position:absolute;top:calc(100% + 10px);left:0;width:660px;max-width:92vw;background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-lg);padding:14px;grid-template-columns:1fr 1fr;gap:6px;z-index:110}
.has-mega.open .mega-panel{display:grid}
@media(hover:hover){.has-mega:hover .mega-panel,.has-mega:focus-within .mega-panel{display:grid}}
.mega-item{display:flex;gap:12px;padding:11px 12px;border-radius:12px;color:var(--ink)}
.mega-item:hover{background:var(--accent-soft);text-decoration:none}
.mega-item .mic{width:40px;height:40px;flex:none;border-radius:11px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;color:var(--accent)}
.mega-item b{display:block;font-size:14.5px}
.mega-item span{display:block;font-size:12.5px;color:var(--muted);line-height:1.45}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.hsearch{display:flex;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:3px 3px 3px 14px}
.hsearch input{border:none;outline:none;background:transparent;font:inherit;font-size:14px;color:var(--ink);width:150px;padding:6px 0}
.hsearch input::placeholder{color:var(--muted)}
.hsearch button{border:none;background:transparent;color:var(--accent);border-radius:999px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;cursor:pointer;flex:none}
.hsearch button:hover{background:var(--accent-soft);color:var(--accent)}
.theme-btn{width:38px;height:38px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--ink);display:flex;align-items:center;justify-content:center;cursor:pointer;flex:none;padding:0}
.theme-btn:hover{border-color:var(--accent)}
.theme-btn .moon{display:none}
[data-theme="dark"] .theme-btn .sun{display:none}
[data-theme="dark"] .theme-btn .moon{display:block}
.burger{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:11px;background:var(--card);color:var(--ink);cursor:pointer;align-items:center;justify-content:center;padding:0}
.drawer{display:none;border-top:1px solid var(--line);background:var(--card);padding:14px 20px 20px}
.drawer.open{display:block}
.drawer a{display:block;padding:11px 4px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer a:hover{text-decoration:none;color:var(--accent)}
.drawer .drawer-cats{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:14px 0 4px;font-weight:700}
.drawer .hsearch{margin-top:14px}
.drawer .hsearch input{width:100%}
@media(max-width:1023px){.main-nav{display:none}.burger{display:flex}.hsearch{margin-left:0}}
@media(max-width:640px){.header-actions .hsearch{display:none}.header-in{gap:14px}.logo{font-size:21px}}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(560px 280px at 12% -40px,rgba(99,91,255,.22),transparent 65%),
  radial-gradient(620px 300px at 88% 0,rgba(14,165,233,.20),transparent 65%),
  linear-gradient(180deg,#EEF2FF 0%,var(--bg) 70%);
  border-bottom:1px solid var(--line);padding:76px 0 66px;text-align:center}
[data-theme="dark"] .hero{background:
  radial-gradient(560px 280px at 12% -40px,rgba(99,91,255,.28),transparent 65%),
  radial-gradient(620px 300px at 88% 0,rgba(14,165,233,.22),transparent 65%),
  linear-gradient(180deg,#131E3A 0%,var(--bg) 75%);border-bottom-color:var(--line)}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(99,91,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(99,91,255,.07) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(ellipse 75% 60% at 50% 0,black 30%,transparent 75%);pointer-events:none}
.hero .wrap{position:relative}
.hero-eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);background:var(--accent-soft);border:1px solid var(--line);border-radius:999px;padding:6px 14px;margin-bottom:18px}
.hero h1{font-size:54px;line-height:1.08;margin:0 0 16px;letter-spacing:-1.4px;font-weight:800}
.hero h1 .grad{background:linear-gradient(92deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);font-size:19px;margin:0 auto 28px;max-width:660px;line-height:1.6}
.hero-ctas{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:30px}
.btn-primary,.btn-secondary{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:16px;padding:13px 24px;border-radius:12px;border:1.5px solid transparent;cursor:pointer}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;box-shadow:0 8px 20px rgba(99,91,255,.30)}
.btn-primary:hover{background:linear-gradient(135deg,#5648f0,#0284c7);text-decoration:none;color:#fff;transform:translateY(-1px)}
.btn-secondary{background:var(--card);color:var(--ink);border-color:var(--line)}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}
.search-box{max-width:640px;margin:0 auto;position:relative;z-index:60}
.search-box input{width:100%;padding:17px 52px 17px 22px;font-size:17px;border:1.5px solid var(--line);border-radius:16px;outline:none;background:var(--card);color:var(--ink);box-shadow:var(--shadow-md);font-family:inherit}
.search-box input:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.search-box::after{content:"";position:absolute;right:20px;top:50%;width:20px;height:20px;margin-top:-10px;background:var(--muted);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='2'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M21 21l-4.3-4.3'/%3E%3C/svg%3E") center/contain no-repeat;-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='2'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M21 21l-4.3-4.3'/%3E%3C/svg%3E") center/contain no-repeat;pointer-events:none}
.search-results{position:absolute;left:0;right:0;top:calc(100% + 8px);background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg);text-align:left;overflow:hidden;z-index:70;max-height:340px;overflow-y:auto}
.search-results a{display:block;padding:12px 16px;color:var(--ink)}
.search-results a:hover{background:var(--accent-soft);text-decoration:none}
.search-results .cat{color:var(--muted);font-size:13px;float:right}
.trust-row{display:flex;gap:26px;justify-content:center;margin-top:26px;color:var(--muted);font-size:14px;font-weight:600;flex-wrap:wrap}
.trust-row span::before{content:"✓";color:var(--accent);font-weight:800;margin-right:7px}
.hero-cards{position:absolute;inset:0;z-index:2;pointer-events:none}
.hero-float{position:absolute;width:210px;background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-md);padding:13px 15px;text-align:left;animation:floaty 7s ease-in-out infinite;pointer-events:auto}
.hero-float b{display:block;font-size:14px}
.hero-float span{font-size:12.5px;color:var(--muted)}
.hero-float .hf-tag{display:inline-block;font-size:11px;font-weight:700;color:var(--accent);background:var(--accent-soft);border-radius:999px;padding:2px 9px;margin-bottom:6px}
.hero-float.f1{left:2%;top:16%;animation-delay:0s}
.hero-float.f2{right:2%;top:10%;animation-delay:1.4s}
.hero-float.f3{left:5%;bottom:8%;animation-delay:2.6s}
.hero-float.f4{right:5%;bottom:14%;animation-delay:3.8s}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@media(max-width:1150px){.hero-cards{display:none}}
@media(max-width:640px){.hero{padding:52px 0 44px}.hero h1{font-size:34px;letter-spacing:-.8px}.hero p{font-size:17px}}

/* ---------- Category marquee strip ---------- */
.strip{overflow:hidden;background:var(--card);border-bottom:1px solid var(--line);padding:14px 0}
.strip-track{display:inline-flex;align-items:center;white-space:nowrap;animation:stripmove 34s linear infinite;will-change:transform}
.strip:hover .strip-track{animation-play-state:paused}
.strip-item{display:inline-flex;align-items:center;gap:9px;color:var(--ink);font-weight:600;font-size:15px;padding:8px 18px;border:1px solid var(--line);border-radius:999px;margin:0 7px;background:var(--bg)}
.strip-item:hover{color:var(--accent);border-color:var(--accent);text-decoration:none}
.strip-item svg{color:var(--accent);flex:none}
@keyframes stripmove{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media(max-width:640px){.strip{overflow-x:auto}.strip-track{animation:none}}

/* ---------- Stats band ---------- */
.stats-band{background:var(--dark);color:#F1F5F9;padding:44px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat-band{padding:6px 10px}
.stat-band + .stat-band{border-left:1px solid rgba(255,255,255,.12)}
.stat-num{font-size:38px;font-weight:800;letter-spacing:-1px;line-height:1.1}
.stat-num .count{color:#fff}
.stat-lbl{color:#94A3B8;font-size:14.5px;margin-top:4px}
@media(max-width:640px){.stats-grid{grid-template-columns:repeat(2,1fr)}.stat-band:nth-child(3){border-left:none}.stat-num{font-size:30px}}

/* ---------- Sections, grids, cards ---------- */
section{padding:56px 0 8px}
h2.sec{font-size:30px;margin:0 0 10px;letter-spacing:-.7px;font-weight:800}
.sec-sub{color:var(--muted);font-size:17px;margin:0 0 26px;max-width:660px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:26px}
.sec-head h2.sec{margin-bottom:6px}
.sec-head .sec-sub{margin-bottom:0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:1023px){.grid-4{grid-template-columns:repeat(3,1fr)}}
@media(max-width:767px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.grid-4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;display:block;color:var(--ink);box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.card:hover{border-color:var(--accent);text-decoration:none;box-shadow:var(--shadow-md);transform:translateY(-4px)}
.card .ic{width:44px;height:44px;border-radius:12px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:12px}
.card .ic svg{transition:transform .25s ease}
.card:hover .ic svg{transform:scale(1.15) rotate(-4deg)}
.card h3{margin:0 0 6px;font-size:17px}
.card p{margin:0;color:var(--muted);font-size:14px;line-height:1.55}
.card .go{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:700;color:var(--accent)}
.card:hover .go{gap:10px}
.card-meta{color:var(--accent);font-weight:700;font-size:13px;margin-top:12px}
.cat-card .ic{width:56px;height:56px;border-radius:15px}
.cat-card h3{font-size:18px}
.view-all-row{text-align:center;margin:30px 0 10px}

/* ---------- Featured showcase ---------- */
.showcase{background:linear-gradient(135deg,rgba(99,91,255,.08),rgba(14,165,233,.08));border:1px solid var(--line);border-radius:22px;padding:36px;margin:56px 0 8px;display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}
.showcase h2{font-size:28px;letter-spacing:-.6px;margin:0 0 10px}
.showcase p{color:var(--muted);margin:0 0 18px;font-size:16.5px}
.showcase-links{display:grid;gap:8px;margin-bottom:20px}
.showcase-links a{display:flex;justify-content:space-between;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:11px 15px;color:var(--ink);font-weight:600;font-size:15px}
.showcase-links a:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}
.mini-tool{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-md);padding:22px}
.mini-tool h3{margin:0 0 4px;font-size:17px}
.mini-tool p{color:var(--muted);font-size:14px;margin:0 0 14px}
.mini-tool textarea{min-height:120px}
.mini-stats{display:flex;gap:10px;margin-top:12px}
.mini-stat{flex:1;background:var(--accent-soft);border-radius:12px;padding:10px;text-align:center}
.mini-stat b{display:block;font-size:19px}
.mini-stat span{font-size:12px;color:var(--muted)}
@media(max-width:820px){.showcase{grid-template-columns:1fr;padding:26px 20px}}

/* ---------- Why Toolvium ---------- */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:1023px){.why-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.why-grid{grid-template-columns:1fr}}
.why-card{font-size:15px;letter-spacing:.04em;text-transform:uppercase;margin:0 0 8px}

/* ---------- Guides ---------- */
.guide-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin:8px 0 22px}
.guide-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;text-decoration:none;color:inherit;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.guide-card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-4px)}
.guide-thumb{width:100%;height:auto;border-radius:10px;margin-bottom:12px;display:block}
.guide-card strong{display:block;color:var(--ink);margin-bottom:6px;line-height:1.45}
.guide-card span{display:block;color:var(--muted);font-size:14px;line-height:1.55}
.guide-card small{display:block;color:var(--muted);margin-top:10px;font-size:12.5px}

/* ---------- Homepage FAQ ---------- */
.faq-list{max-width:780px;margin:0 auto}
.faq-list details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:12px}
.faq-list summary{font-weight:700;font-size:16.5px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";font-size:22px;font-weight:400;color:var(--accent);flex:none;transition:transform .25s}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list details[open] p{animation:fadeUp .3s ease both}
.faq-list p{color:var(--muted);margin:10px 0 2px;line-height:1.65}

/* ---------- Footer ---------- */
.site-footer{margin-top:64px;background:var(--dark);color:#CBD5E1;padding:56px 0 0;font-size:14.5px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}
.foot-brand p{color:#94A3B8;line-height:1.65;max-width:300px}
.foot-label{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#A5B4FC;background:rgba(99,91,255,.18);border-radius:999px;padding:5px 12px;margin-top:12px}
.site-footer h4{color:#fff;font-size:14px;letter-spacing:.05em;text-transform:uppercase;margin:0 0 14px}
.foot-col a{display:block;color:#94A3B8;padding:5px 0}
.foot-col a:hover{color:#fff;text-decoration:none}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:#94A3B8;font-size:13.5px}

/* ---------- Tool & content pages ---------- */
main{display:block}
.crumb,.crumbs{color:var(--muted);font-size:14px;margin:22px 0 6px}
.crumb a,.crumbs a{color:var(--accent)}
.tool-head h1{font-size:34px;margin:4px 0 8px;letter-spacing:-.7px;line-height:1.2}
.tool-head p{color:var(--muted);margin:0 0 20px;max-width:740px;font-size:16.5px}
.tool-box{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;margin-bottom:24px;box-shadow:var(--shadow-sm)}
textarea{width:100%;min-height:170px;padding:13px 15px;font:15px/1.5 ui-monospace,Consolas,monospace;border:1.5px solid var(--line);border-radius:12px;resize:vertical;outline:none;background:var(--card);color:var(--ink)}
textarea:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
textarea.out{background:var(--accent-soft)}
.btns{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}
button{padding:10px 17px;border:1.5px solid var(--line);background:var(--card);border-radius:11px;font-weight:600;cursor:pointer;font-size:14.5px;color:var(--ink);font-family:inherit;transition:border-color .15s ease,background .15s ease,transform .1s ease}
button:hover{border-color:var(--accent);color:var(--accent)}
button:active{transform:scale(.97)}
button.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));border-color:transparent;color:#fff}
button.primary:hover{background:linear-gradient(135deg,#5648f0,#0284c7);color:#fff}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px;margin-top:14px}
.stat{background:var(--accent-soft);border:1px solid var(--line);border-radius:12px;padding:12px;text-align:center}
.stat b{display:block;font-size:22px}
.stat span{color:var(--muted);font-size:13px}
.msg{font-size:14px;margin-top:8px}
.msg.ok{color:var(--ok)} .msg.err{color:var(--err)}
.content{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px;margin-bottom:18px;box-shadow:var(--shadow-sm)}
.content h2{font-size:21px;margin:18px 0 8px;letter-spacing:-.3px}
.content h2:first-child{margin-top:0}
.content p,.content li{line-height:1.65}
.faq details{border-top:1px solid var(--line);padding:12px 0}
.faq details:first-of-type{border-top:none}
.faq summary{font-weight:700;cursor:pointer}
.faq p{color:var(--muted);margin:6px 0 2px}
.list-az{columns:2;column-gap:36px}
.list-az a{display:block;padding:6px 0;color:var(--ink)}
.list-az a:hover{color:var(--accent)}
@media(max-width:640px){.tool-head h1{font-size:27px}.tool-box{padding:18px 16px}.content{padding:20px 16px}.list-az{columns:1}.main-nav{display:none}}

/* ---------- Articles ---------- */
.article-wrap{max-width:820px}
.article h1{font-size:36px;line-height:1.2;margin:6px 0;letter-spacing:-.7px}
.guide-meta{color:var(--muted);font-size:14.5px;margin:4px 0 16px}
.guide-intro{font-size:17.5px;color:var(--muted);line-height:1.65}
.article h2{margin:28px 0 8px;font-size:23px;letter-spacing:-.3px}
.article h3{margin:18px 0 6px;font-size:18px}
.article p,.article li{color:var(--ink);line-height:1.7}
.article code{background:var(--accent-soft);border:1px solid var(--line);border-radius:5px;padding:1px 6px;font-size:.92em}
.guide-toc{background:var(--accent-soft);border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin:20px 0}
.guide-toc ol{margin:8px 0 0;padding-left:20px}
.guide-toc a{color:var(--accent)}
.cta-box{display:flex;gap:16px;align-items:center;justify-content:space-between;background:var(--accent-soft);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:20px 0;flex-wrap:wrap}
.cta-box p{margin:4px 0 0;color:var(--muted)}
.guide-hero{width:100%;height:auto;border-radius:16px;margin:8px 0 18px;display:block}
.guide-cat{margin-bottom:28px}
.related-guides{margin-top:32px}

/* ---------- Motion system ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
.hero h1{animation:fadeDown .7s ease both}
.hero p,.hero-ctas,.hero .search-box,.trust-row{animation:fadeUp .7s ease both}
.hero p{animation-delay:.08s}.hero-ctas{animation-delay:.14s}.hero .search-box{animation-delay:.2s}.trust-row{animation-delay:.26s}
@keyframes fadeDown{from{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:none}}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .strip-track,.hero-float{animation:none}
  .strip{overflow-x:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .hero h1,.hero p,.hero-ctas,.hero .search-box,.trust-row{animation:none}
  .card{transition:none}
}

/* ---------- Dark-mode pass for tool-engine surfaces ----------
   Paper-like previews (invoice, resume, SERP mock) intentionally stay
   light — they represent documents. Everything else follows the theme. */
[data-theme="dark"] .tool-box input[type=text],
[data-theme="dark"] .tool-box input[type=number],
[data-theme="dark"] .tool-box select,
[data-theme="dark"] .tool-box input[type=datetime-local],
[data-theme="dark"] .tool-box input[type=file]{background:var(--card);color:var(--ink)}
[data-theme="dark"] .cv-result,[data-theme="dark"] .wu-chips span,
[data-theme="dark"] .sym-tile,[data-theme="dark"] .rtf-box,[data-theme="dark"] .diff-out,
[data-theme="dark"] .gc-out,[data-theme="dark"] .gc-card,[data-theme="dark"] .rx-preview,
[data-theme="dark"] .scan-out,[data-theme="dark"] .gen-list li,[data-theme="dark"] .pw-list li,
[data-theme="dark"] .gen-list button,[data-theme="dark"] .pw-list button,
[data-theme="dark"] .seo-checks li,[data-theme="dark"] .og-card,[data-theme="dark"] .og-item,
[data-theme="dark"] .ex-card,[data-theme="dark"] .vw-hit,[data-theme="dark"] .doc-preview,
[data-theme="dark"] .pe-toolbar button,[data-theme="dark"] .pe-imgbtn,
[data-theme="dark"] .pe-sigtab,[data-theme="dark"] .plag-stat,
[data-theme="dark"] .fancy-val,[data-theme="dark"] .tc-opts label,
[data-theme="dark"] .pf-field input[type=text],[data-theme="dark"] .pf-field textarea,
[data-theme="dark"] .pf-field select,[data-theme="dark"] .gd-item input,
[data-theme="dark"] .gr-row input,[data-theme="dark"] .gr-row textarea,
[data-theme="dark"] .doc-controls input[type=text],[data-theme="dark"] .doc-controls input[type=number],
[data-theme="dark"] .doc-controls input[type=date],[data-theme="dark"] .doc-controls textarea,
[data-theme="dark"] .doc-controls select,[data-theme="dark"] .calc-form input[type=text],
[data-theme="dark"] .calc-form textarea,[data-theme="dark"] .gq-group input[type=text],
[data-theme="dark"] .gq-group textarea,[data-theme="dark"] select,
[data-theme="dark"] input[type=number],[data-theme="dark"] input[type=text].txt{background:var(--card);color:var(--ink)}
[data-theme="dark"] .cv-table th,[data-theme="dark"] .content th,
[data-theme="dark"] .doc-preview{background:var(--card);color:var(--ink)}
[data-theme="dark"] .dl.same{color:#94A3B8}
[data-theme="dark"] .im-canvas,[data-theme="dark"] .vw-stage,[data-theme="dark"] .pe-stage,
[data-theme="dark"] .iw-wrap,[data-theme="dark"] .ai-progress{background:#1E293B}
[data-theme="dark"] .checker{background:repeating-conic-gradient(#1E293B 0% 25%, #0B1220 0% 50%)}
[data-theme="dark"] .plag-list li{background:#2A1A0E;border-color:#7C2D12}
[data-theme="dark"] .plag-list li.plag-none{background:#0F2A1A;border-color:#166534}
[data-theme="dark"] .gc-out mark.spell,[data-theme="dark"] .gc-out mark.gram,
[data-theme="dark"] .gc-out mark.style{color:inherit}
[data-theme="dark"] .doc-preview{box-shadow:none}
[data-theme="dark"] .serp-card{background:#fff;color:#111827}
[data-theme="dark"] .serp-card .serp-url{color:#202124}
[data-theme="dark"] .serp-card .serp-desc{color:#4d5156}

/* ---------- Preserved tool-engine rules (unchanged) ---------- */
/* Batch v2 tools */
.fancy-row{display:flex;gap:8px;align-items:center;margin:8px 0}
.fancy-label{flex:0 0 110px;font-size:13px;font-weight:700;color:var(--muted)}
.fancy-val{flex:1;padding:9px 12px;border:1px solid var(--line);border-radius:9px;font-size:16px;background:#fff;color:var(--ink)}
.fancy-row button{flex:0 0 auto}
.tc-opts label{display:inline-flex;align-items:center;gap:6px;font-size:14px;background:#f5f3ff;border:1px solid var(--line);border-radius:8px;padding:7px 11px;cursor:pointer}
.tc-opts input[type=checkbox]{accent-color:var(--accent)}
select,input[type=number],input[type=text].txt{padding:9px 12px;border:1px solid var(--line);border-radius:9px;font-size:14px;background:#fff;color:var(--ink)}
#wu-input{width:100%;box-sizing:border-box}
.wu-sec{font-weight:700;margin:14px 0 6px}
.wu-chips{display:flex;flex-wrap:wrap;gap:6px}
.wu-chips span{background:#f5f3ff;border:1px solid var(--line);border-radius:7px;padding:4px 10px;font-size:14px}
.wu-chips span.exact{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:700}
/* --- Converter UI --- */
.tool-box input[type=text],.tool-box input[type=number],.tool-box select{padding:11px 13px;font-size:16px;border:1px solid var(--line);border-radius:10px;outline:none;background:#fff;color:var(--ink);font-family:inherit}
.tool-box input[type=text]:focus,.tool-box input[type=number]:focus,.tool-box select:focus{border-color:var(--accent2)}
.cv-row{display:flex;gap:10px;flex-wrap:wrap;align-items:stretch;margin-bottom:12px}
.cv-row input{flex:1 1 160px}
.cv-row select{flex:1 1 150px}
#cv-swap{font-size:18px;padding:0 16px}
.cv-result{background:#f5f3ff;border:1px solid var(--line);border-radius:12px;padding:16px;font-size:19px;margin:12px 0 4px;word-break:break-word}
.cv-formula{color:var(--muted);font-size:14px;margin:4px 0 10px}
.cv-label{display:block;font-weight:700;margin:16px 0 6px}
.cv-label:first-child{margin-top:0}
.cv-table{width:100%;border-collapse:collapse;margin-top:14px;font-size:15px}
.cv-table th,.cv-table td{border:1px solid var(--line);padding:8px 12px;text-align:left}
.cv-table th{background:#f5f3ff}
.stat b{word-break:break-all}
#nw-num,#pd-input{width:100%}
#ln-input{margin-top:4px}
/* --- Developer tools UI --- */
.hash-list{margin-top:14px}
.hash-row{display:flex;gap:14px;padding:9px 0;border-bottom:1px solid var(--line);align-items:baseline}
.hash-row span{font-weight:700;min-width:78px}
.hash-row code{word-break:break-all;font-size:13.5px;font-family:ui-monospace,Consolas,monospace}
.code-out{background:#17142b;color:#e9e7ff;border-radius:12px;padding:16px;overflow-x:auto;font:13.5px/1.55 ui-monospace,Consolas,monospace;white-space:pre-wrap;word-break:break-word;margin:6px 0 4px}
.mono{font-family:ui-monospace,Consolas,monospace;font-size:14px}
.rx-preview{background:#fff;border:1px solid var(--line);border-radius:10px;padding:13px;white-space:pre-wrap;word-break:break-word;font-size:15px}
.rx-preview mark{background:#fde68a;padding:0 2px;border-radius:3px}
.tool-box input[type=file]{margin:8px 0;font-size:15px}
.tool-box input[type=datetime-local]{padding:11px 13px;font-size:16px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);flex:1 1 200px}
#b6-preview img{border:1px solid var(--line);border-radius:10px;margin-top:8px}
/* --- Text tools UI (v6) --- */
.diff-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:640px){.diff-grid{grid-template-columns:1fr}}
.diff-out{border:1px solid var(--line);border-radius:10px;background:#fff;overflow-x:auto;font:13.5px/1.65 ui-monospace,Consolas,monospace}
.diff-out:empty{border:none}
.dl{white-space:pre-wrap;word-break:break-word;padding:1px 10px 1px 4px}
.dl .ds{display:inline-block;width:18px;text-align:center;font-weight:700}
.dl.add{background:#dcfce7}
.dl.del{background:#fee2e2}
.dl.same{color:#55516e}
.sym-grid{display:flex;flex-wrap:wrap;gap:8px;margin:4px 0 14px}
.sym-tile{display:flex;flex-direction:column;align-items:center;gap:2px;min-width:64px;padding:10px 6px 7px;background:#fff;border:1px solid var(--line);border-radius:10px;cursor:pointer;font:inherit}
.sym-tile:hover{border-color:var(--accent);background:#f5f3ff}
.sym-tile .g{font-size:25px;line-height:1.15}
.sym-tile .n{font-size:10.5px;color:#6b6880;text-align:center;max-width:88px}
.sym-tile.wide{min-width:104px}
.sym-tile.wide .g{font-size:14.5px;font-weight:600}
.sym-toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);background:#17142b;color:#fff;padding:9px 18px;border-radius:999px;font-size:14.5px;opacity:0;transition:opacity .25s;pointer-events:none;z-index:99;max-width:92vw;text-align:center}
.sym-toast.show{opacity:1}
.rtf-box{border:1px solid var(--line);border-radius:10px;min-height:110px;padding:12px;background:#fff;font-size:15.5px}
.rtf-box:empty:before{content:attr(data-ph);color:#8a87a0}
.content table{border-collapse:collapse;width:100%;margin:12px 0;font-size:14.5px}
.content th,.content td{border:1px solid var(--line);padding:7px 10px;text-align:left}
.content th{background:#f5f3ff}
/* --- Grammar Checker UI (v7) --- */
.gc-out{border:1px solid var(--line);border-radius:10px;padding:14px 16px;background:#fff;font-size:15.5px;line-height:1.8;white-space:pre-wrap;word-break:break-word;margin-top:10px}
.gc-out mark{border-radius:3px;padding:0 1px;cursor:pointer;color:inherit}
.gc-out mark.spell{background:#fee2e2;border-bottom:2px solid #dc2626}
.gc-out mark.gram{background:#fef3c7;border-bottom:2px solid #d97706}
.gc-out mark.style{background:#dbeafe;border-bottom:2px solid #2563eb}
.gc-card{border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:10px;padding:12px 14px;margin:10px 0;background:#fff}
.gc-card.active{box-shadow:0 0 0 2px var(--accent)}
.gc-card h4{margin:0 0 4px;font-size:15px}
.gc-card p{margin:2px 0 8px;font-size:14px;color:#55516e}
.gc-card code{background:#f5f3ff;border:1px solid var(--line);border-radius:5px;padding:0 5px}
.gc-rep{display:inline-block;margin:0 6px 6px 0;padding:5px 12px;border:1px solid var(--line);border-radius:999px;background:#f5f3ff;cursor:pointer;font:inherit;font-size:14px}
.gc-rep:hover{border-color:var(--accent)}
/* --- PDF tools UI (v8) --- */
.dl-btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;padding:11px 22px;border-radius:10px;text-decoration:none;margin:8px 0}
.dl-btn:hover{background:#5b21b6}
.doc-preview{border:1px solid var(--line);border-radius:10px;padding:20px 24px;background:#fff;margin-top:12px;max-height:420px;overflow:auto;line-height:1.55}
.doc-preview img{max-width:100%}
.doc-preview table{border-collapse:collapse}
.doc-preview td,.doc-preview th{border:1px solid var(--line);padding:4px 8px}
.og-grid{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px}
.og-item{position:relative;width:132px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:6px;cursor:grab;text-align:center}
.og-item canvas{max-width:100%;height:auto;border:1px solid var(--line);border-radius:4px;transition:transform .2s}
.og-item .og-num{font-size:12px;font-weight:700;color:#55516e;margin-bottom:4px}
.og-item .og-btns{position:absolute;top:4px;right:4px;display:flex;gap:4px}
.og-item .og-btns button{width:24px;height:24px;border-radius:6px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:13px;line-height:1;padding:0}
.og-item.deleted{opacity:.38}
.og-item.deleted .og-num{text-decoration:line-through}
.vw-stage{margin-top:14px;text-align:center;background:#eceaf4;border:1px solid var(--line);border-radius:10px;padding:14px;overflow:auto}
.vw-stage canvas{box-shadow:0 2px 14px rgba(23,20,43,.25);background:#fff}
.vw-hit{display:block;width:100%;text-align:left;margin:6px 0;padding:9px 12px;border:1px solid var(--line);border-radius:9px;background:#fff;cursor:pointer;font:inherit;font-size:14px}
.vw-hit:hover{border-color:var(--accent)}
#pt-file,#og-file,#vw-file,#tp-file{margin:8px 0;font-size:15px}
#pt-go[disabled],#og-save[disabled]{opacity:.6;cursor:wait}
/* ---------- PDF editor ---------- */
.pe-toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:6px 0 10px}
.pe-toolbar button,.pe-imgbtn{background:#fff;border:1.5px solid var(--line);border-radius:9px;padding:8px 13px;font-weight:600;cursor:pointer;font-size:.92rem;color:var(--ink)}
.pe-toolbar button:hover,.pe-imgbtn:hover{border-color:var(--accent);color:var(--accent)}
.pe-toolbar button.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.pe-toolbar input[type=color]{width:36px;height:30px;border:1px solid var(--line);border-radius:6px;background:#fff;padding:1px;vertical-align:middle;cursor:pointer}
button.pe-drawbtn.on{background:var(--accent);border-color:var(--accent);color:#fff}
.pe-selbar{align-items:center}
.pe-selbar input[type=color]{width:36px;height:30px;border:1px solid var(--line);border-radius:6px;background:#fff;padding:1px;cursor:pointer}
.pe-stage{position:relative;margin:16px auto 6px;background:#e9e6f5;border-radius:10px;box-shadow:0 8px 30px rgba(40,20,90,.18);overflow:hidden}
.pe-stage canvas{display:block}
.pe-layer{position:absolute;inset:0}
.pe-item{position:absolute;box-sizing:border-box}
.pe-item.sel{outline:2px solid var(--accent);outline-offset:1px}
.pe-item.pe-rect{border-radius:2px}
.pe-preview{background:rgba(255,230,0,.35);border:1.5px dashed #b8a200}
.pe-text{outline:none;white-space:pre-wrap;line-height:1.25;padding:1px 3px;min-width:30px;font-family:Helvetica,Arial,sans-serif}
.pe-handle{position:absolute;left:-20px;top:0;cursor:move;background:var(--accent);color:#fff;border-radius:5px;font-size:11px;line-height:1;padding:3px 4px;user-select:none}
.pe-item img{width:100%;height:100%;display:block;pointer-events:none}
.pe-resize{position:absolute;right:-8px;bottom:-8px;width:15px;height:15px;background:#fff;border:2.5px solid var(--accent);border-radius:50%;cursor:nwse-resize}
.pe-stage.drawing{cursor:crosshair}
.pe-signpanel{border:1.5px solid var(--line);border-radius:12px;padding:14px;margin:10px 0;background:#faf9ff}
.pe-sigtabs{display:flex;gap:8px;margin-bottom:10px;flex-wrap:wrap}
.pe-sigtab{background:#fff;border:1.5px solid var(--line);border-radius:999px;padding:6px 14px;font-weight:600;cursor:pointer}
.pe-sigtab.on{background:var(--accent);color:#fff;border-color:var(--accent)}
#pe-sigpad{border:1.5px solid var(--line);border-radius:8px;background:#fff;max-width:100%;touch-action:none;cursor:crosshair}
.pe-sigprev{font-size:46px;color:#1a237e;padding:6px 2px;min-height:66px}
@media (max-width:640px){ .pe-handle{left:auto;right:-2px;top:-20px} }
/* ---------- OCR / form filler / extract ---------- */
.oc-bar{height:10px;background:#e9e6f5;border-radius:99px;overflow:hidden;margin:10px 0}
.oc-fill{height:100%;background:var(--accent);width:0;transition:width .3s ease}
#oc-out{width:100%;box-sizing:border-box;border:1.5px solid var(--line);border-radius:10px;padding:12px;font:inherit;margin-top:10px}
.pf-field{margin:10px 0}
.pf-field label{display:block;font-weight:600;margin-bottom:4px}
.pf-field input[type=text],.pf-field textarea,.pf-field select{width:100%;box-sizing:border-box;border:1.5px solid var(--line);border-radius:9px;padding:9px 11px;font:inherit;background:#fff}
.pf-check{display:flex !important;align-items:center;gap:9px;cursor:pointer}
.pf-check input{width:19px;height:19px;accent-color:var(--accent)}
.pf-radios{display:flex;gap:16px;flex-wrap:wrap}
.pf-radios label{font-weight:400;display:flex;align-items:center;gap:5px;cursor:pointer}
.pf-radios input{accent-color:var(--accent)}
#pf-actions{align-items:center}
.ex-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:14px;margin-top:14px}
.ex-card{border:1.5px solid var(--line);border-radius:12px;padding:10px;background:#fff;text-align:center}
.ex-card img{max-width:100%;max-height:150px;object-fit:contain;border-radius:6px;background:#f4f2fa}
.ex-card p{font-size:.82rem;color:#55536b;margin:8px 0 6px}
.ex-dl{font-weight:700;color:var(--accent);text-decoration:none}
.ex-dl:hover{text-decoration:underline}
/* ---------- Image tools ---------- */
.im-canvas{max-width:100%;height:auto;display:block;margin:12px auto;background:#f4f2fa;border-radius:8px}
.tool-box input[type=text]{border:1.5px solid var(--line);border-radius:9px;padding:9px 11px;font:inherit;background:#fff}
.cv-row input[type=color]{width:38px;height:32px;border:1px solid var(--line);border-radius:6px;background:#fff;padding:1px;cursor:pointer;vertical-align:middle}
.dl-link{display:inline-block;background:var(--accent);color:#fff !important;font-weight:700;border-radius:10px;padding:11px 20px;text-decoration:none;margin-top:6px}
.ig-stage{position:relative;max-width:760px;margin:14px auto}
.ig-stage img{width:100%;display:block;border-radius:6px}
.ig-box{position:absolute;border:2px solid #fff;box-shadow:0 0 0 9999px rgba(24,12,48,.45);cursor:move;border-radius:2px}
.ig-handle{position:absolute;right:-10px;bottom:-10px;width:19px;height:19px;background:var(--accent);border:2.5px solid #fff;border-radius:50%;cursor:nwse-resize}
.ib-stage{position:relative;max-width:760px;margin:14px auto;touch-action:none}
.ib-stage img{width:100%;display:block;border-radius:6px}
.ib-layer{position:absolute;inset:0}
.ib-region{position:absolute;border:2px dashed #fff;background:rgba(109,40,217,.20);border-radius:2px}
.ix-stage{position:relative;max-width:760px;margin:14px auto}
.ix-stage img{width:100%;display:block;border-radius:6px}
.ix-item{position:absolute;cursor:move;white-space:nowrap;line-height:1.15;padding:2px 5px;text-shadow:0 1px 3px rgba(0,0,0,.4);user-select:none}
.ix-item.sel{outline:2px dashed var(--accent);outline-offset:2px}
.iw-wrap{overflow:auto;max-height:72vh;border:1.5px solid var(--line);border-radius:10px;background:#f4f2fa;margin-top:10px}
.iw-wrap img{max-width:none}
/* ---------- Generators ---------- */
.gb-svg{max-width:100%;height:auto;display:block;margin:10px auto;background:#fff;border:1.5px solid var(--line);border-radius:8px;padding:6px}
.gl-canvas{max-width:420px;width:100%}
.scan-out{border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;margin:10px 0;background:#faf9ff;word-break:break-all}
.gen-list,.pw-list{list-style:none;margin:14px 0;padding:0;display:grid;gap:8px}
.gen-list li,.pw-list li{display:flex;justify-content:space-between;align-items:center;gap:10px;border:1.5px solid var(--line);border-radius:10px;padding:9px 13px;background:#fff}
.gen-list li span{font-weight:600}
.gen-list button,.pw-list button{background:#fff;border:1.5px solid var(--line);border-radius:8px;padding:5px 12px;font-weight:600;cursor:pointer;flex:none}
.gen-list button:hover,.pw-list button:hover{border-color:var(--accent);color:var(--accent)}
.pw-list code{font-size:1.02rem;word-break:break-all}
.pw-meter{height:10px;background:#e9e6f5;border-radius:99px;overflow:hidden;margin:10px 0}
.pw-meter div{height:100%;transition:width .3s}
.pw-checks{list-style:none;padding:0;margin:8px 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:4px}
.ga-out{text-align:center;padding:20px 10px}
.ga-big{font-size:2rem;font-weight:800;color:var(--accent)}
.gq-group{margin:8px 0}
.gq-group input[type=text]{border:1.5px solid var(--line);border-radius:9px;padding:9px 11px;font:inherit;background:#fff}
.gq-group textarea{border:1.5px solid var(--line);border-radius:9px;padding:9px 11px;font:inherit}
/* documents */
.doc-controls input[type=text],.doc-controls input[type=number],.doc-controls input[type=date],.doc-controls textarea,.doc-controls select{border:1.5px solid var(--line);border-radius:9px;padding:8px 10px;font:inherit;background:#fff}
.gd-item{display:flex;gap:8px;margin:6px 0;align-items:center}
.gd-item .gd-desc{flex:1}
.gd-item input{border:1.5px solid var(--line);border-radius:9px;padding:8px 10px;font:inherit;background:#fff}
.gd-item .gd-qty{max-width:80px}
.gd-item .gd-price{max-width:110px}
.gd-del{background:#fff;border:1.5px solid var(--line);border-radius:8px;width:32px;height:32px;font-size:1.05rem;cursor:pointer;flex:none}
.gd-del:hover{border-color:#c62828;color:#c62828}
.gr-row{display:flex;gap:8px;margin:6px 0;flex-wrap:wrap;align-items:flex-start}
.gr-row input,.gr-row textarea{border:1.5px solid var(--line);border-radius:9px;padding:8px 10px;font:inherit;background:#fff;flex:1;min-width:130px}
.doc-preview{background:#fff;border:1.5px solid var(--line);border-radius:12px;padding:34px 36px;max-width:840px;margin:16px auto;color:#23202e;box-shadow:0 10px 34px rgba(40,20,90,.08)}
.doc-head{display:flex;justify-content:space-between;gap:16px;border-bottom:3px solid var(--accent);padding-bottom:12px;margin-bottom:16px}
.doc-head h2{margin:0;font-size:1.7rem;letter-spacing:.04em}
.doc-num{color:var(--muted);margin:2px 0 0}
.doc-dates{text-align:right;color:#55536b;font-size:.92rem}
.doc-dates p{margin:2px 0}
.doc-parties{display:flex;gap:30px;flex-wrap:wrap;margin-bottom:16px}
.doc-parties>div{flex:1;min-width:220px}
.doc-parties h4,.doc-notes h4{margin:0 0 4px;color:var(--accent);font-size:.85rem;text-transform:uppercase;letter-spacing:.08em}
.doc-parties p{margin:0;line-height:1.5}
.doc-table{width:100%;border-collapse:collapse;margin:8px 0 14px}
.doc-table th{text-align:left;border-bottom:2px solid #d9d4ec;padding:7px 6px;font-size:.9rem}
.doc-table td{border-bottom:1px solid #eceaf4;padding:7px 6px}
.doc-table .r{text-align:right}
.doc-totals{margin-left:auto;max-width:300px}
.doc-totals p{display:flex;justify-content:space-between;margin:4px 0}
.doc-grand{border-top:2px solid var(--accent);padding-top:8px;font-size:1.12rem}
.doc-paid{margin-top:14px;font-weight:600}
.doc-notes{margin-top:18px}
/* resume */
.rs-head{border-bottom:3px solid;padding-bottom:12px;margin-bottom:14px}
.rs-head h2{margin:0;font-size:1.9rem}
.rs-title{font-size:1.1rem;font-weight:600;margin:2px 0}
.rs-contact{color:#55536b;margin:4px 0 0}
.rs-sec{margin:16px 0}
.rs-sec h3{font-size:.95rem;text-transform:uppercase;letter-spacing:.08em;margin:0 0 8px;border-bottom:1px solid #eceaf4;padding-bottom:4px}
.rs-sec p{margin:6px 0;line-height:1.55}
.rs-period{float:right;color:#55536b;font-size:.92rem}
.rs-skill{display:inline-block;background:#f1eefc;border-radius:999px;padding:3px 11px;margin:2px 2px;font-size:.9rem}
@media print{
  body *{visibility:hidden}
  .print-area,.print-area *{visibility:visible}
  .print-area{position:absolute;left:0;top:0;width:100%;max-width:none;box-shadow:none;border:none;margin:0;padding:10px}
}
/* ---------- Calculators ---------- */
.calc-form input[type=date]{padding:11px 13px;font-size:16px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-family:inherit;display:block}
.calc-form textarea{width:100%;box-sizing:border-box;padding:11px 13px;font-size:15px;border:1px solid var(--line);border-radius:10px;font-family:inherit;min-height:74px;display:block}
.calc-form select{display:block;max-width:360px}
.calc-form input[type=text]{display:block;width:100%;box-sizing:border-box;max-width:420px}
/* ---------- SEO tools ---------- */
.seo-checks{list-style:none;margin:14px 0;padding:0;display:grid;gap:8px}
.seo-checks li{display:flex;gap:10px;align-items:flex-start;border:1.5px solid var(--line);border-radius:10px;padding:9px 13px;background:#fff}
.seo-checks li span{font-weight:800;flex:none;width:20px;height:20px;border-radius:50%;text-align:center;line-height:20px;font-size:.85rem;color:#fff}
.chk-ok span{background:#2e7d32}.chk-warn span{background:#f9a825}.chk-bad span{background:#c62828}
.pill{border-radius:999px;padding:2px 10px;font-weight:700;font-size:.85rem;color:#fff}
.pill-ok{background:#2e7d32}.pill-warn{background:#f9a825}.pill-bad{background:#c62828}
.og-card{border:1.5px solid var(--line);border-radius:12px;overflow:hidden;max-width:520px;margin:12px 0;background:#fff}
.og-card img{width:100%;max-height:260px;object-fit:cover;display:block}
.og-body{padding:12px 14px}
.og-body span{color:var(--muted);font-size:.82rem;text-transform:uppercase;letter-spacing:.05em}
.og-body b{display:block;margin:3px 0;font-size:1.05rem}
.og-body p{margin:0;color:#55536b}
.serp-card{border:1.5px solid var(--line);border-radius:12px;padding:16px 18px;max-width:600px;margin:10px 0 18px;background:#fff;font-family:Arial,sans-serif}
.serp-mobile{max-width:360px}
.serp-url{color:#202124;font-size:.85rem;margin-bottom:4px}
.serp-title{color:#1a0dab;font-size:1.25rem;line-height:1.3}
.serp-mobile .serp-title{font-size:1.05rem}
.serp-desc{color:#4d5156;font-size:.92rem;margin-top:3px;line-height:1.45}
.src-pre{background:#16121f;color:#e8e4f5;border-radius:12px;padding:16px;overflow:auto;max-height:480px;font-size:.8rem;line-height:1.5}
.kd-h{margin:18px 0 8px}
.kd-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:0 22px}
.calc-big{font-size:1.15rem}
/* ---------- Developer extras ---------- */
.gg-tracks{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:4px 22px;margin:8px 0}
.gr-track{align-items:center}
.gr-track span{font-weight:700;color:var(--muted);width:34px}
.gr-track input{max-width:90px}
#gg-preview{border-radius:12px;margin:14px 0}
.gg-cell{background:#ede9fb;border:1.5px solid #c9bcf0;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--accent);min-height:44px;padding:6px}

/* --- v16: AI model tools + plagiarism --- */
.hint{color:#64748b;font-size:.92rem;margin:.4rem 0 .8rem}
.ai-progress{position:relative;background:#ede9fe;border-radius:999px;height:22px;margin:.7rem 0;overflow:hidden}
.ai-progress .bar{position:absolute;inset:0 auto 0 0;width:0;background:#7c3aed;border-radius:999px;transition:width .25s}
.ai-progress .pct{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:600;color:#4c1d95;mix-blend-mode:normal}
.checker{background:repeating-conic-gradient(#e2e8f0 0% 25%, #ffffff 0% 50%) 0 0/22px 22px;border:1px solid #e2e8f0;border-radius:10px;padding:6px}
.bg-stage img,.up-stage img,.en-stage img,.en-stage canvas{max-width:100%;height:auto;border-radius:10px;display:block;margin:.3rem 0 .8rem}
.checker img{margin:0 auto}
.btn-primary-link{display:inline-block;background:#6d28d9;color:#fff;padding:.6rem 1.1rem;border-radius:9px;font-weight:600;text-decoration:none}
.btn-primary-link:hover{background:#5b21b6}
.plag-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media (max-width:720px){.plag-grid{grid-template-columns:1fr}}
.plag-grid textarea{width:100%;box-sizing:border-box}
.file-load{display:inline-block;margin-top:.35rem;color:#6d28d9;font-weight:600;cursor:pointer;font-size:.9rem}
.plag-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.7rem;margin:1rem 0}
.plag-stat{background:#f5f3ff;border:1px solid #e9e5ff;border-radius:10px;padding:.7rem;text-align:center}
.plag-num{display:block;font-size:1.45rem;font-weight:800;color:#4c1d95}
.plag-lbl{font-size:.83rem;color:#64748b}
.plag-list{list-style:none;padding:0;margin:.5rem 0}
.plag-list li{background:#fff7ed;border:1px solid #fed7aa;border-radius:9px;padding:.6rem .8rem;margin:.45rem 0}
.plag-list li.plag-none{background:#f0fdf4;border-color:#bbf7d0}
.plag-pct{display:inline-block;background:#ea580c;color:#fff;border-radius:6px;padding:.05rem .45rem;font-size:.78rem;font-weight:700;margin-right:.4rem}
.plag-m{display:block;color:#64748b;font-size:.87rem;margin-top:.25rem}