:root{
  --bg:#070912;
  --bg-2:#0b0f1e;
  --card:rgba(18,24,44,.62);
  --card-solid:#12152a;
  --border:rgba(255,255,255,.09);
  --border-strong:rgba(255,255,255,.16);
  --txt:#eef1f8;
  --txt-soft:#9aa3b8;
  --txt-dim:#6b7388;
  --accent:#5b8cff;
  --accent-2:#8a5cff;
  --cyan:#22d3ee;
  --grad:linear-gradient(135deg,#5b8cff 0%,#8a5cff 50%,#22d3ee 100%);
  --shadow:0 8px 40px rgba(0,0,0,.45);
  --glow:0 0 40px rgba(91,140,255,.35);
  --radius:18px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--txt);line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:var(--txt);text-decoration:none}
a:hover{color:var(--cyan)}
.wrap{max-width:1140px;margin:0 auto;padding:0 22px;position:relative;z-index:2}
::selection{background:rgba(91,140,255,.35)}

/* ==== PARALLAX BACKGROUND ==== */
.bg-canvas{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55;will-change:transform}
.orb-1{width:560px;height:560px;background:radial-gradient(circle,#5b8cff,transparent 70%);top:-140px;left:-120px}
.orb-2{width:520px;height:520px;background:radial-gradient(circle,#8a5cff,transparent 70%);top:18%;right:-160px}
.orb-3{width:480px;height:480px;background:radial-gradient(circle,#22d3ee,transparent 70%);bottom:-120px;left:22%}
.orb-4{width:380px;height:380px;background:radial-gradient(circle,rgba(138,92,255,.8),transparent 70%);bottom:6%;right:14%}
.grid-overlay{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse at 50% 0%,#000 30%,transparent 75%)}

/* ==== HEADER ==== */
header{position:sticky;top:0;z-index:60;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);background:rgba(7,9,18,.55);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:800;font-size:19px;letter-spacing:-.4px;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.logo .dot{color:var(--txt);-webkit-text-fill-color:var(--txt)}
.nav-links{display:flex;gap:24px;font-size:14px;align-items:center}
.nav-links a{color:var(--txt-soft);font-weight:500}
.nav-links a:hover{color:var(--txt)}
.theme-btn{cursor:pointer;background:var(--card);border:1px solid var(--border);border-radius:10px;width:38px;height:38px;display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--txt);transition:border .15s}
.theme-btn:hover{border-color:var(--border-strong)}
.menu-btn{display:none;cursor:pointer;font-size:22px;color:var(--txt)}
@media(max-width:720px){.nav-links{display:none}.menu-btn{display:block}}
.nav-links.open{display:flex;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:var(--bg-2);padding:18px 22px;border-bottom:1px solid var(--border);gap:16px}

/* ==== HERO ==== */
.hero{padding:76px 0 34px;text-align:center;position:relative}
.hero .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:99px;background:var(--card);border:1px solid var(--border);font-size:13px;color:var(--txt-soft);margin-bottom:20px}
.hero .eyebrow .badge{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.hero h1{font-size:clamp(30px,5.5vw,52px);font-weight:800;letter-spacing:-1.4px;line-height:1.08;margin-bottom:16px}
.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:17px;color:var(--txt-soft);max-width:620px;margin:0 auto;line-height:1.7}

/* ==== SEARCH ==== */
.search{max-width:520px;margin:26px auto 0;position:relative}
.search input{width:100%;padding:15px 20px 15px 48px;border-radius:14px;border:1px solid var(--border-strong);background:var(--card);color:var(--txt);font-size:15px;backdrop-filter:blur(10px)}
.search input::placeholder{color:var(--txt-dim)}
.search input:focus{outline:none;border-color:var(--accent);box-shadow:var(--glow)}
.search .icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--cyan);font-size:18px;display:flex;align-items:center}

/* ==== SECTION LABEL ==== */
.sec-label{font-size:13px;text-transform:uppercase;letter-spacing:2px;color:var(--txt-dim);margin:46px 0 16px;display:flex;align-items:center;gap:12px}
.sec-label::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--border-strong),transparent)}

/* ==== GRID ==== */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(248px,1fr));gap:16px;padding:0 0 30px}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;position:relative;overflow:hidden;backdrop-filter:blur(12px);
  transition:transform .2s,border-color .2s,box-shadow .2s;display:block;
}
.card::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:0;transition:opacity .25s;border-radius:inherit}
.card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow)}
.card:hover::before{opacity:.06}
.card .ico{font-size:30px;margin-bottom:12px;position:relative;z-index:1}
.card h3{font-size:16px;margin-bottom:6px;position:relative;z-index:1}
.card p{font-size:13px;color:var(--txt-soft);position:relative;z-index:1}
.tag{display:inline-block;font-size:11px;font-weight:600;padding:3px 10px;border-radius:99px;margin-top:12px;position:relative;z-index:1;background:rgba(91,140,255,.16);color:#9db8ff;border:1px solid rgba(91,140,255,.25)}
.tag.health{background:rgba(34,211,238,.14);color:#7ce7f7;border-color:rgba(34,211,238,.25)}
.tag.general{background:rgba(138,92,255,.16);color:#c2acff;border-color:rgba(138,92,255,.28)}

/* ==== TOOL PAGE ==== */
.crumbs{font-size:13px;color:var(--txt-dim);padding:22px 0 0}
.crumbs a{color:var(--txt-dim)}
.crumbs a:hover{color:var(--cyan)}
.tool-head{padding:40px 0 6px;text-align:center}
.tool-head h1{font-size:clamp(26px,4.5vw,40px);font-weight:800;letter-spacing:-1px;margin-bottom:12px}
.tool-head h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.tool-head .sub{color:var(--txt-soft);max-width:660px;margin:0 auto;font-size:15.5px}

.layout{display:grid;grid-template-columns:1fr;gap:22px;padding:28px 0 30px}
@media(min-width:960px){.layout{grid-template-columns:minmax(0,1fr) 330px}}
.panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(14px);overflow:hidden}
.calc{padding:26px}
.side{padding:22px;align-self:start}
.side h3{font-size:15px;margin-bottom:12px;color:var(--txt)}
.side ul{list-style:none}
.side li{padding:8px 0;border-bottom:1px solid var(--border);font-size:13.5px}
.side li:last-child{border-bottom:none}
.side a{color:var(--txt-soft)}
.side a:hover{color:var(--cyan)}

/* ==== FORM ==== */
.field{margin-bottom:18px}
.field label{display:flex;justify-content:space-between;font-size:13px;font-weight:600;margin-bottom:8px;color:var(--txt)}
.field .hint{font-size:12px;color:var(--txt-dim);font-weight:400}
input,select{
  width:100%;padding:13px 15px;font-size:15px;border-radius:12px;
  border:1px solid var(--border-strong);background:rgba(10,14,28,.6);color:var(--txt);
  transition:border .15s,box-shadow .15s;
}
input:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(91,140,255,.18)}
input[type=range]{width:100%;-webkit-appearance:none;appearance:none;height:6px;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--cyan));outline:none;padding:0;border:none;margin-top:12px;cursor:pointer}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;border-radius:50%;background:#fff;border:3px solid var(--accent);box-shadow:0 0 12px rgba(91,140,255,.6);cursor:pointer}
input[type=range]::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:#fff;border:3px solid var(--accent);box-shadow:0 0 12px rgba(91,140,255,.6);cursor:pointer}
.range-val{font-size:12px;color:var(--cyan);font-weight:600}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:520px){.row{grid-template-columns:1fr}}

.btn{
  display:block;width:100%;padding:15px;font-size:15px;font-weight:700;border:none;border-radius:14px;
  background:var(--grad);color:#fff;cursor:pointer;position:relative;overflow:hidden;
  box-shadow:0 6px 24px rgba(91,140,255,.35);transition:transform .15s,box-shadow .15s;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 32px rgba(91,140,255,.55)}
.btn:active{transform:translateY(0)}

/* ==== RESULT ==== */
.result{margin-top:22px;padding:22px;border-radius:16px;background:rgba(10,14,28,.5);border:1px solid var(--border-strong);display:none;position:relative;overflow:hidden}
.result.show{display:block;animation:pop .35s ease}
.result::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad)}
.result .big{font-size:32px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.5px}
.result .lbl{font-size:13px;color:var(--txt-dim);text-transform:uppercase;letter-spacing:1px;margin-bottom:4px}
.result .line{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed var(--border);font-size:14px;color:var(--txt-soft)}
.result .line:last-child{border-bottom:none}
.result .line span:last-child{color:var(--txt);font-weight:600}
@keyframes pop{0%{transform:scale(.97);opacity:0}100%{transform:scale(1);opacity:1}}

/* ==== CONTENT ==== */
.content{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px;margin:0 0 40px;backdrop-filter:blur(12px)}
.content h2{font-size:21px;margin:24px 0 12px;background:var(--grad);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;display:inline-block}
.content h2:first-child{margin-top:0}
.content p{font-size:15px;color:var(--txt-soft);margin-bottom:14px}
.content ul,.content ol{margin:0 0 14px 22px;font-size:15px;color:var(--txt-soft)}
.content li{margin-bottom:8px}

/* ==== AD ==== */
.ad-unit{margin:24px 0;min-height:60px;border-radius:14px;overflow:hidden;border:1px solid var(--border)}

/* ==== FOOTER ==== */
footer{border-top:1px solid var(--border);background:rgba(7,9,18,.6);padding:34px 0;margin-top:30px;backdrop-filter:blur(12px)}
footer .foot{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;font-size:13px;color:var(--txt-dim)}
footer a{color:var(--txt-dim)}

/* ==== REVEAL ==== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}

/* ==== SCROLLBAR ==== */
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:#232a45;border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:#2e3757}

/* ==== LIGHT THEME ==== */
body.light{
  --bg:#f5f7fc;--bg-2:#fff;--card:rgba(255,255,255,.7);--card-solid:#fff;
  --border:rgba(15,23,42,.08);--border-strong:rgba(15,23,42,.16);
  --txt:#0f172a;--txt-soft:#475569;--txt-dim:#94a3b8;
  --accent:#4f7cff;--accent-2:#7a5cff;--cyan:#0891b2;
  --shadow:0 8px 40px rgba(15,23,42,.10);
}
body.light .orb{opacity:.25}
body.light .grid-overlay{background-image:linear-gradient(rgba(15,23,42,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(15,23,42,.03) 1px,transparent 1px)}
body.light .tag{background:rgba(79,124,255,.12);color:#3157c9;border-color:rgba(79,124,255,.3)}

/* ==== MONOCHROME ICON TILES (v2) ==== */
.card .ico{font-size:inherit;width:46px;height:46px;border-radius:13px;background:rgba(255,255,255,.06);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;margin-bottom:15px;color:var(--txt);position:relative;z-index:1;transition:color .2s,background .2s,border-color .2s}
.card:hover .ico{color:var(--cyan);background:rgba(91,140,255,.14);border-color:rgba(91,140,255,.3)}
.card .ico svg{width:22px;height:22px}
body.light .card .ico{background:rgba(15,23,42,.05)}
.theme-btn svg,.menu-btn svg{width:20px;height:20px;display:block}
.theme-btn .sun{display:none}
body.light .theme-btn .sun{display:block}
body.light .theme-btn .moon{display:none}
.tool-ico{width:54px;height:54px;border-radius:15px;background:rgba(91,140,255,.14);border:1px solid rgba(91,140,255,.22);display:flex;align-items:center;justify-content:center;margin:0 auto 14px;color:var(--cyan)}
.tool-ico svg{width:26px;height:26px}

/* ==== TRUST STATS ==== */
.trust{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:30px}
.trust .stat{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:13px 22px;text-align:center;backdrop-filter:blur(10px)}
.trust .stat .n{font-size:21px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.trust .stat .l{font-size:12px;color:var(--txt-soft)}

/* ==== FEATURE STRIP ==== */
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;padding:8px 0 34px}
.feature{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;backdrop-filter:blur(12px)}
.feature .fi{width:44px;height:44px;border-radius:12px;background:rgba(91,140,255,.14);display:flex;align-items:center;justify-content:center;color:var(--cyan);margin-bottom:14px}
.feature .fi svg{width:22px;height:22px}
.feature h3{font-size:15px;margin-bottom:6px}
.feature p{font-size:13px;color:var(--txt-soft)}

/* ==== RANGE SLIDER LABEL ==== */
input[type=range]{margin-top:8px}