:root{--bg:#0a0d18;--bg-2:#0e1226;--surface:rgba(255,255,255,.04);--surface-2:rgba(255,255,255,.06);--border:rgba(255,255,255,.09);--border-2:rgba(255,255,255,.14);--text:#eef1fb;--text-dim:#9aa3c4;--text-faint:#69708f;--p1:#22d3ee;--p2:#6366f1;--accent:#f5b042;--accent-2:#ff8a3c;--ok:#34d399;--bad:#ff6b6b;--grad:linear-gradient(120deg,var(--p1),var(--p2));--grad-accent:linear-gradient(120deg,var(--accent),var(--accent-2));--shadow:0 24px 60px -24px rgba(0,0,0,.7);--r:18px;--fd:"Space Grotesk",system-ui,sans-serif;--fb:"Inter",system-ui,sans-serif;--fm:"JetBrains Mono",monospace;--ease:cubic-bezier(.22,.61,.36,1)}
[data-theme="light"]{--bg:#f5f6fc;--bg-2:#eceefa;--surface:rgba(20,24,54,.035);--surface-2:rgba(20,24,54,.05);--border:rgba(20,24,54,.1);--border-2:rgba(20,24,54,.16);--text:#161a31;--text-dim:#515877;--text-faint:#777e9c;--shadow:0 24px 60px -28px rgba(40,46,90,.28)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--fb);background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;z-index:-2;background:radial-gradient(60% 50% at 78% 8%,rgba(99,102,241,.20),transparent 60%),radial-gradient(50% 45% at 12% 18%,rgba(34,211,238,.16),transparent 60%),radial-gradient(40% 40% at 50% 100%,rgba(245,176,66,.07),transparent 60%)}
[data-theme="light"] body::before{opacity:.55}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}
::selection{background:var(--p2);color:#fff}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}
/* header */
header{position:sticky;top:0;z-index:100;transition:.4s var(--ease);border-bottom:1px solid transparent}
header.scrolled{background:color-mix(in srgb,var(--bg) 72%,transparent);backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;gap:16px;height:72px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;cursor:pointer}
.logo{width:38px;height:38px;border-radius:11px;background:var(--grad);display:grid;place-items:center;font-family:var(--fd);font-weight:700;color:#06121a;font-size:19px;position:relative;overflow:hidden}
.logo::after{content:"";position:absolute;inset:0;background:linear-gradient(130deg,rgba(255,255,255,.5),transparent 45%)}
.brand b{font-family:var(--fd);font-weight:700;font-size:18px;letter-spacing:-.3px}
.brand small{display:block;font-size:10.5px;color:var(--text-dim);margin-top:-3px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav-links a{font-size:14px;color:var(--text-dim);padding:8px 12px;border-radius:9px;position:relative;font-weight:500;transition:color .25s;cursor:pointer;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;background:var(--grad);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav-links a:hover{color:var(--text)}.nav-links a:hover::after{transform:scaleX(1)}
.nav-spacer{flex:1}
.search{position:relative;width:250px}
.search-inner{display:flex;align-items:center;gap:8px;height:40px;padding:0 10px 0 13px;border-radius:11px;border:1px solid var(--border);background:var(--surface);transition:.2s var(--ease)}
.search-inner:focus-within{border-color:var(--p1);box-shadow:0 0 0 3px rgba(34,211,238,.14)}
.search-inner svg{width:16px;height:16px;flex-shrink:0;color:var(--text-faint)}
.search-inner input{flex:1;min-width:0;border:none;background:transparent;color:var(--text);font-size:13.5px;font-family:var(--fb);outline:none;height:100%}
.s-kbd{font-family:var(--fm);font-size:9.5px;padding:2px 6px;border-radius:5px;background:var(--surface-2);border:1px solid var(--border-2);color:var(--text-faint);pointer-events:none;transition:opacity .2s;line-height:1.4;white-space:nowrap;flex-shrink:0}
.search-inner:focus-within .s-kbd,.search-inner:has(input:not(:placeholder-shown)) .s-kbd{opacity:0}
.search-pop{position:absolute;top:48px;left:0;right:0;background:var(--bg-2);border:1px solid var(--border);border-radius:13px;box-shadow:var(--shadow);padding:6px;display:none;max-height:320px;overflow:auto;z-index:30}
.search-pop.show{display:block}
.search-pop a{display:flex;justify-content:space-between;gap:8px;padding:9px 11px;border-radius:9px;font-size:13.5px;color:var(--text-dim);cursor:pointer}
.search-pop a:hover{background:var(--surface-2);color:var(--text)}
.search-pop .chip{font-family:var(--fm);font-size:10px}
.btn{font-family:var(--fb);font-weight:600;font-size:13.5px;border:none;cursor:pointer;border-radius:11px;padding:0 18px;height:40px;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.28s var(--ease);white-space:nowrap;text-decoration:none}
.btn-primary{background:var(--grad);color:#06121a;box-shadow:0 10px 26px -10px var(--p2)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{background:var(--surface);color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{border-color:var(--border-2);background:var(--surface-2)}
.btn-convert{background:var(--grad-accent);color:#1a1206;box-shadow:0 12px 30px -10px var(--accent)}
.btn-convert:hover{transform:translateY(-2px)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.icon-btn{width:40px;height:40px;border-radius:11px;border:1px solid var(--border);background:var(--surface);display:grid;place-items:center;cursor:pointer;color:var(--text-dim);transition:.25s;flex-shrink:0}
.icon-btn:hover{color:var(--text);border-color:var(--border-2)}.icon-btn svg{width:18px;height:18px}
.hamburger{display:none}
.mobile-menu{position:fixed;inset:0;z-index:200;background:var(--bg);padding:24px 22px;display:none;flex-direction:column;gap:6px;overflow:auto}
.mobile-menu.open{display:flex}
.mobile-menu a{font-family:var(--fd);font-weight:600;font-size:20px;padding:13px 4px;border-bottom:1px solid var(--border);color:var(--text-dim);cursor:pointer}
.mm-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
/* hero */
.hero{position:relative;padding:70px 0 56px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--fm);font-size:11.5px;letter-spacing:.5px;color:var(--p1);background:var(--surface);border:1px solid var(--border);padding:7px 13px;border-radius:100px;margin-bottom:22px}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--p1);box-shadow:0 0 10px var(--p1)}
h1.headline{font-family:var(--fd);font-weight:700;font-size:clamp(34px,5vw,54px);line-height:1.05;letter-spacing:-1.5px;margin-bottom:20px}
h1.headline .g{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sub{font-size:17px;color:var(--text-dim);max-width:520px;margin-bottom:30px}
.hero-cta{display:flex;gap:13px;flex-wrap:wrap}
.btn-lg{height:50px;font-size:15px;border-radius:13px;padding:0 24px}
.hero-stats{display:flex;gap:30px;margin-top:36px;flex-wrap:wrap}
.hero-stats .n{font-family:var(--fd);font-weight:700;font-size:24px}
.hero-stats .l{font-size:12.5px;color:var(--text-faint)}
.stage{perspective:1200px;height:400px;position:relative;display:grid;place-items:center}
/* Outer wrapper floats; inner cluster spins — two separate animations, no override */
.float-wrap{animation:float 7s ease-in-out infinite;transform-style:preserve-3d}
.cluster{transform-style:preserve-3d;animation:spin 30s linear infinite;position:relative;width:240px;height:240px}
@keyframes spin{to{transform:rotateY(360deg)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-18px)}}
/* 6 glass format cards — 60-deg intervals, 3 always face viewer simultaneously */
.card3d{position:absolute;inset:0;margin:auto;width:128px;height:160px;border-radius:20px;display:grid;place-items:center;backface-visibility:hidden;background:linear-gradient(155deg,var(--surface-2),var(--surface));border:1px solid var(--border-2);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.22);backdrop-filter:blur(14px)}
.card3d::before{content:"";position:absolute;inset:0;border-radius:20px;background:linear-gradient(148deg,rgba(255,255,255,.30),transparent 44%);pointer-events:none}
.card3d .glyph{font-family:var(--fd);font-weight:700;font-size:32px;letter-spacing:-1px;position:relative}
.card3d .fmt{position:absolute;bottom:13px;font-family:var(--fm);font-size:10px;color:var(--text-dim);letter-spacing:.5px}
.c1{transform:rotateY(0deg)   translateZ(120px)}.c1 .glyph{background:linear-gradient(125deg,#ff6b6b,#ff4500);-webkit-background-clip:text;background-clip:text;color:transparent}
.c2{transform:rotateY(60deg)  translateZ(120px)}.c2 .glyph{background:linear-gradient(125deg,#22d3ee,#0ea5e9);-webkit-background-clip:text;background-clip:text;color:transparent}
.c3{transform:rotateY(120deg) translateZ(120px)}.c3 .glyph{background:linear-gradient(125deg,#34d399,#059669);-webkit-background-clip:text;background-clip:text;color:transparent}
.c4{transform:rotateY(180deg) translateZ(120px)}.c4 .glyph{background:linear-gradient(125deg,#a78bfa,#7c3aed);-webkit-background-clip:text;background-clip:text;color:transparent}
.c5{transform:rotateY(240deg) translateZ(120px)}.c5 .glyph{background:linear-gradient(125deg,#fb923c,#f59e0b);-webkit-background-clip:text;background-clip:text;color:transparent}
.c6{transform:rotateY(300deg) translateZ(120px)}.c6 .glyph{background:linear-gradient(125deg,#f472b6,#db2777);-webkit-background-clip:text;background-clip:text;color:transparent}
.cluster-glow{position:absolute;width:310px;height:310px;border-radius:50%;background:radial-gradient(circle,rgba(99,102,241,.38),transparent 64%);filter:blur(34px);animation:pulse 6s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.16);opacity:.65}}
/* sections */
.section{padding:60px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 38px}
.section-head .eyebrow{margin-bottom:16px}
.section-head h2{font-family:var(--fd);font-weight:700;font-size:clamp(28px,3.6vw,40px);letter-spacing:-1px;margin-bottom:12px}
.section-head p{color:var(--text-dim);font-size:16px}
.toolbar{display:flex;gap:14px;align-items:center;justify-content:space-between;margin-bottom:26px;flex-wrap:wrap}
.tabs{display:flex;gap:6px;background:var(--surface);border:1px solid var(--border);padding:5px;border-radius:14px}
.tab{border:none;background:transparent;color:var(--text-dim);font-family:var(--fb);font-weight:600;font-size:13.5px;padding:8px 16px;border-radius:10px;cursor:pointer;transition:.25s}
.tab.active{background:var(--grad);color:#06121a}
.tab .ct{opacity:.7;font-family:var(--fm);font-size:11px;margin-left:5px}
.filter-search{flex:1;max-width:320px;min-width:200px}
.filter-search .fi{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px 0 13px;border-radius:12px;border:1px solid var(--border);background:var(--surface);transition:.2s var(--ease)}
.filter-search .fi:focus-within{border-color:var(--p1);box-shadow:0 0 0 3px rgba(34,211,238,.14)}
.filter-search .fi svg{width:17px;height:17px;flex-shrink:0;color:var(--text-faint)}
.filter-search .fi input{flex:1;min-width:0;border:none;background:transparent;color:var(--text);font-size:14px;font-family:var(--fb);outline:none;height:100%}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tool{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:20px;transition:.3s var(--ease);overflow:hidden;display:flex;flex-direction:column;gap:11px;cursor:pointer}
.tool::before{content:"";position:absolute;inset:0;border-radius:var(--r);padding:1px;background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .3s var(--ease)}
.tool:hover{transform:translateY(-4px);background:var(--surface-2);box-shadow:var(--shadow)}
.tool:hover::before{opacity:1}
.tool .ico{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--surface-2);border:1px solid var(--border);color:var(--p1);transition:.3s var(--ease)}
.tool:hover .ico{background:var(--grad);color:#06121a;border-color:transparent}
.tool .ico svg{width:21px;height:21px}
.tool.cat-pdf .ico{color:#ff8a6b}.tool.cat-converter .ico{color:var(--accent)}
.tool h3{font-family:var(--fd);font-weight:600;font-size:15.5px;letter-spacing:-.3px}
.tool p{font-size:12.8px;color:var(--text-dim);line-height:1.5;flex:1}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{font-family:var(--fm);font-size:10px;font-weight:600;padding:3px 8px;border-radius:7px;background:var(--surface-2);border:1px solid var(--border);color:var(--text-dim)}
.tool .arrow{position:absolute;top:20px;right:20px;color:var(--text-faint);opacity:0;transform:translateX(-4px);transition:.3s var(--ease)}
.tool:hover .arrow{opacity:1;transform:translateX(0);color:var(--p1)}
/* ─── Favourites heart button ────────────────────── */
.fav-btn{position:absolute;top:13px;right:44px;width:28px;height:28px;border:none;background:transparent;cursor:pointer;display:grid;place-items:center;opacity:0;transition:.22s var(--ease);z-index:2;border-radius:8px;padding:0;line-height:1}
.tool:hover .fav-btn,.fav-btn.active{opacity:1}
.fav-btn svg{width:16px;height:16px;transition:.2s;stroke:var(--text-faint);fill:none;stroke-width:2}
.fav-btn.active svg{stroke:#f472b6;fill:#f472b6}
.fav-btn:hover svg{stroke:#f472b6;fill:rgba(244,114,182,.18)}
/* Heart on tool-page header */
.th-fav{flex-shrink:0;margin-left:auto;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:var(--surface-2);display:grid;place-items:center;cursor:pointer;transition:.25s var(--ease)}
.th-fav:hover{border-color:#f472b6;background:rgba(244,114,182,.08)}
.th-fav svg{width:20px;height:20px;transition:.2s;stroke:var(--text-dim);fill:none;stroke-width:2}
.th-fav.active svg{stroke:#f472b6;fill:#f472b6}
/* Saved tab */
.tab.t-saved .ct{color:#f472b6}
/* Empty saved state */
.empty-fav{grid-column:1/-1;text-align:center;padding:60px 20px}
.empty-fav .ef-ico{font-size:38px;opacity:.3;margin-bottom:14px}
.empty-fav h3{font-family:var(--fd);font-weight:600;font-size:18px;color:var(--text-dim);margin-bottom:8px}
.empty-fav p{font-size:14px;color:var(--text-faint)}
/* Counter bump animation */
@keyframes countPop{0%{transform:scale(1)}50%{transform:scale(1.18)}100%{transform:scale(1)}}
.count-pop{animation:countPop .35s var(--ease)}
.empty{grid-column:1/-1;text-align:center;padding:50px;color:var(--text-faint);font-size:15px}
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.trust .t{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:24px}
.trust .t .ico{width:40px;height:40px;border-radius:11px;background:var(--surface-2);display:grid;place-items:center;color:var(--p1);margin-bottom:14px}
.trust .t h4{font-family:var(--fd);font-weight:600;font-size:16px;margin-bottom:6px}
.trust .t p{font-size:13px;color:var(--text-dim)}
/* tool view */
.crumb{padding:24px 0 4px;font-size:13px;color:var(--text-faint);display:flex;gap:8px;align-items:center;font-family:var(--fm);flex-wrap:wrap}
.crumb a{cursor:pointer}.crumb a:hover{color:var(--p1)}.crumb .sep{opacity:.5}.crumb .here{color:var(--text)}
.tool-head{padding:14px 0 26px;display:flex;gap:18px;align-items:flex-start}
.tool-head .badge{width:54px;height:54px;border-radius:15px;background:var(--surface-2);border:1px solid var(--border);display:grid;place-items:center;color:var(--p1);flex-shrink:0}
.tool-head.pdf .badge{color:var(--accent)}.tool-head.converter .badge{color:var(--accent)}
.tool-head .badge svg{width:27px;height:27px}
.tool-head h1{font-family:var(--fd);font-weight:700;font-size:clamp(26px,4vw,38px);letter-spacing:-1px;line-height:1.1}
.tool-head p{color:var(--text-dim);font-size:16px;margin-top:6px;max-width:660px}