/* ============================================================
   Perf Recorder — shared design system
   Bold & modern. No build step; plain CSS custom properties.
   Theme: follows system by default, overridable via [data-theme].
   ============================================================ */

:root{
  color-scheme: light dark;

  /* brand */
  --brand-1:#3b7cff;
  --brand-2:#6354eb;
  --grad: linear-gradient(135deg,#3b7cff 0%,#6354eb 100%);
  --grad-soft: linear-gradient(135deg,#3b7cff22 0%,#6354eb22 100%);

  /* status */
  --ok:#16a34a;
  --leak:#e0473e;
  --warn:#f59e0b;

  /* light palette (default) */
  --bg:#ffffff;
  --bg-2:#f6f8fc;
  --surface:#ffffff;
  --surface-2:#f4f6fa;
  --glass: rgba(255,255,255,.72);
  --txt:#10131a;
  --txt-2:#39414f;
  --mut:#5d6675;
  --border:#e4e8f1;
  --border-2:#d7dde9;
  --shadow: 0 1px 2px rgba(16,19,26,.04), 0 8px 24px rgba(16,19,26,.06);
  --shadow-lg: 0 12px 40px rgba(40,60,120,.16);
  --ring: 0 0 0 3px rgba(59,124,255,.28);
  --hero-glow-1: #3b7cff33;
  --hero-glow-2: #6354eb33;

  /* type scale */
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  /* spacing / radius */
  --r-sm:8px; --r:14px; --r-lg:20px; --r-xl:28px; --r-full:999px;
  --maxw:1120px;
}

@media (prefers-color-scheme: dark){
  :root{
    --bg:#0a0c10;
    --bg-2:#0d1016;
    --surface:#12151c;
    --surface-2:#161a22;
    --glass: rgba(18,21,28,.66);
    --txt:#eef1f6;
    --txt-2:#c4cad6;
    --mut:#97a0b2;
    --border:#222734;
    --border-2:#2c3343;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 12px 32px rgba(0,0,0,.45);
    --shadow-lg: 0 18px 60px rgba(0,0,0,.55);
    --ring: 0 0 0 3px rgba(99,124,255,.38);
    --hero-glow-1:#3b7cff40;
    --hero-glow-2:#7c5cff40;
  }
}

/* explicit theme overrides (toggle) — mirror the blocks above */
[data-theme="light"]{
  --bg:#ffffff; --bg-2:#f6f8fc; --surface:#ffffff; --surface-2:#f4f6fa;
  --glass: rgba(255,255,255,.72);
  --txt:#10131a; --txt-2:#39414f; --mut:#5d6675; --border:#e4e8f1; --border-2:#d7dde9;
  --shadow: 0 1px 2px rgba(16,19,26,.04), 0 8px 24px rgba(16,19,26,.06);
  --shadow-lg: 0 12px 40px rgba(40,60,120,.16);
  --hero-glow-1:#3b7cff33; --hero-glow-2:#6354eb33;
}
[data-theme="dark"]{
  --bg:#0a0c10; --bg-2:#0d1016; --surface:#12151c; --surface-2:#161a22;
  --glass: rgba(18,21,28,.66);
  --txt:#eef1f6; --txt-2:#c4cad6; --mut:#97a0b2; --border:#222734; --border-2:#2c3343;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 12px 32px rgba(0,0,0,.45);
  --shadow-lg: 0 18px 60px rgba(0,0,0,.55);
  --hero-glow-1:#3b7cff40; --hero-glow-2:#7c5cff40;
}

/* ---------- base ---------- */
*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
html,body{ margin:0; }
body{
  background:var(--bg);
  color:var(--txt);
  font:16px/1.6 var(--font);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  overflow-x:hidden;
}
main{ flex:1 0 auto; }
a{ color:var(--brand-1); text-decoration:none; }
a:hover{ text-decoration:underline; }
img,svg{ max-width:100%; }
h1,h2,h3{ letter-spacing:-.02em; line-height:1.12; margin:0; }
p{ margin:0; }
.muted{ color:var(--mut); }
.mono{ font-family:var(--mono); }
::selection{ background:#3b7cff44; }

.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 22px; }
.wrap-narrow{ max-width:860px; }
section{ position:relative; }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:13px; font-weight:600; letter-spacing:.04em; text-transform:uppercase;
  color:var(--brand-1);
}
.gradient-text{
  background:var(--grad); -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent; color:transparent;
}

/* ---------- buttons ---------- */
.btn{
  --_bg:var(--surface);
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  font:600 15px/1 var(--font); padding:13px 20px; border-radius:var(--r-full);
  border:1px solid var(--border-2); background:var(--_bg); color:var(--txt);
  cursor:pointer; transition:transform .12s ease, box-shadow .2s ease, background .2s; white-space:nowrap;
}
.btn:hover{ text-decoration:none; transform:translateY(-1px); }
.btn:active{ transform:translateY(0); }
.btn:focus-visible{ outline:none; box-shadow:var(--ring); }
.btn svg{ width:18px; height:18px; }
.btn-primary{
  background:var(--grad); color:#fff; border:none;
  box-shadow:0 6px 18px rgba(59,108,235,.35);
}
.btn-primary:hover{ box-shadow:0 10px 26px rgba(59,108,235,.45); }
.btn-ghost{ background:transparent; }
.btn-lg{ padding:15px 26px; font-size:16px; }
.btn[aria-disabled="true"], .btn.is-soft{ opacity:.78; cursor:default; }
.btn[aria-disabled="true"]:hover{ transform:none; box-shadow:0 6px 18px rgba(59,108,235,.25); }
.btn .badge{
  font-size:11px; font-weight:700; letter-spacing:.03em; text-transform:uppercase;
  padding:2px 7px; border-radius:var(--r-full); background:rgba(255,255,255,.22);
}

/* ---------- nav ---------- */
.nav{
  position:sticky; top:0; z-index:50;
  background:var(--glass); backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--border);
}
.nav-inner{ display:flex; align-items:center; gap:14px; height:62px; }
.brand{ display:inline-flex; align-items:center; gap:11px; color:var(--txt); font-weight:700; font-size:17px; }
.brand:hover{ text-decoration:none; }
.brand .logo{ width:32px; height:32px; border-radius:9px; box-shadow:0 4px 12px rgba(59,108,235,.4); }
.nav-links{ margin-left:auto; display:flex; align-items:center; gap:6px; }
.nav-links a.link{
  padding:8px 12px; border-radius:var(--r-sm); color:var(--txt-2); font-weight:500; font-size:15px;
}
.nav-links a.link:hover{ background:var(--surface-2); text-decoration:none; color:var(--txt); }
.nav-links a.link.active{ color:var(--brand-1); }
.theme-toggle{
  width:38px; height:38px; display:inline-grid; place-items:center; border-radius:var(--r-sm);
  border:1px solid var(--border-2); background:var(--surface); color:var(--txt-2); cursor:pointer;
  transition:background .2s, color .2s;
}
.theme-toggle:hover{ background:var(--surface-2); color:var(--txt); }
.theme-toggle svg{ width:18px; height:18px; }
.theme-toggle .moon{ display:none; }
[data-theme="dark"] .theme-toggle .moon, .theme-toggle.is-dark .moon{ display:block; }
[data-theme="dark"] .theme-toggle .sun, .theme-toggle.is-dark .sun{ display:none; }
.nav-cta{ margin-left:4px; }
.hamburger{ display:none; }

@media (max-width:760px){
  .nav-links{
    position:absolute; top:62px; left:0; right:0; flex-direction:column; align-items:stretch; gap:2px;
    background:var(--glass); backdrop-filter:blur(14px); border-bottom:1px solid var(--border);
    padding:10px 16px 16px; transform:translateY(-8px); opacity:0; pointer-events:none; transition:.18s;
  }
  .nav-links.open{ transform:translateY(0); opacity:1; pointer-events:auto; }
  .nav-cta{ margin:6px 0 0; }
  .hamburger{
    display:inline-grid; place-items:center; margin-left:auto; width:40px; height:40px;
    background:none; border:1px solid var(--border-2); border-radius:var(--r-sm); color:var(--txt); cursor:pointer;
  }
  .theme-toggle{ margin-left:0; }
}

/* ---------- hero ---------- */
.hero{ padding:72px 0 40px; overflow:hidden; }
.hero-bg{ position:absolute; inset:0; z-index:-1; pointer-events:none; overflow:hidden; }
.hero-bg .orb{ position:absolute; border-radius:50%; filter:blur(70px); opacity:.9; }
.hero-bg .orb-1{ width:520px; height:520px; background:var(--hero-glow-1); top:-160px; left:-120px; }
.hero-bg .orb-2{ width:460px; height:460px; background:var(--hero-glow-2); top:-80px; right:-140px; }
.hero-bg .grid-lines{
  position:absolute; inset:0;
  background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size:46px 46px; opacity:.35;
  mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 70%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 70%);
}
.hero-grid{ display:grid; grid-template-columns:1.05fr .95fr; gap:48px; align-items:center; }
.hero h1{ font-size:clamp(34px,5.2vw,58px); font-weight:800; margin:18px 0 0; }
.hero .lede{ font-size:clamp(16px,2vw,19px); color:var(--mut); margin:20px 0 0; max-width:36ch; }
.hero .cta-row{ display:flex; flex-wrap:wrap; gap:12px; margin-top:30px; }
.hero .trust{ display:flex; flex-wrap:wrap; gap:16px 22px; margin-top:26px; font-size:14px; color:var(--mut); }
.hero .trust span{ display:inline-flex; align-items:center; gap:7px; }
.hero .trust svg{ width:16px; height:16px; color:var(--ok); }

@media (max-width:860px){
  .hero{ padding:48px 0 24px; }
  .hero-grid{ grid-template-columns:1fr; gap:36px; }
  .hero .lede{ max-width:none; }
  .hero-visual{ order:2; }
}

/* ---------- mockup (hero visual) ---------- */
.mock{ position:relative; }
.mock .browser{
  border:1px solid var(--border); border-radius:var(--r-lg); background:var(--surface);
  box-shadow:var(--shadow-lg); overflow:hidden;
}
.mock .bar{ display:flex; align-items:center; gap:7px; padding:11px 14px; border-bottom:1px solid var(--border); background:var(--surface-2); }
.mock .bar i{ width:11px; height:11px; border-radius:50%; background:var(--border-2); display:inline-block; }
.mock .bar i:nth-child(1){ background:#ff5f57; } .mock .bar i:nth-child(2){ background:#febc2e; } .mock .bar i:nth-child(3){ background:#28c840; }
.mock .bar .url{ margin-left:8px; font:12px/1 var(--mono); color:var(--mut); background:var(--bg); border:1px solid var(--border); border-radius:var(--r-full); padding:6px 12px; }
.mock .body{ padding:16px; display:grid; gap:12px; }
.mock .stat-row{ display:grid; grid-template-columns:repeat(3,1fr); gap:10px; }
.mock .stat{ border:1px solid var(--border); border-radius:var(--r); background:var(--surface-2); padding:10px 12px; }
.mock .stat .k{ font-size:10px; text-transform:uppercase; letter-spacing:.05em; color:var(--mut); }
.mock .stat .v{ font:700 18px/1.2 var(--font); font-variant-numeric:tabular-nums; margin-top:3px; }
.mock .chart-mini{ border:1px solid var(--border); border-radius:var(--r); background:var(--surface-2); padding:12px; }
.mock .chart-mini .t{ font-size:12px; color:var(--mut); margin-bottom:6px; }
.mock .verdict-pill{ position:absolute; top:-14px; right:18px; z-index:2; }
/* floating popup mock */
.mock .popup{
  position:absolute; bottom:-26px; left:-26px; width:208px; z-index:3;
  border:1px solid var(--border); border-radius:var(--r); background:var(--surface);
  box-shadow:var(--shadow-lg); padding:13px 14px;
}
.mock .popup .ph{ display:flex; align-items:center; gap:8px; font-weight:700; font-size:14px; }
.mock .popup .dot{ width:9px; height:9px; border-radius:50%; background:var(--leak); box-shadow:0 0 0 4px #e0473e22; animation:pulse 1.8s infinite; }
.mock .popup .rec{ margin-top:10px; display:flex; gap:8px; }
.mock .popup .rec button{ flex:1; font:600 12px/1 var(--font); padding:8px; border-radius:var(--r-sm); border:none; color:#fff; background:var(--grad); }
.mock .popup .rec button.stop{ background:var(--surface-2); color:var(--txt-2); border:1px solid var(--border); }
.mock .popup .meta{ margin-top:9px; font:11px/1.5 var(--mono); color:var(--mut); }
@keyframes pulse{ 0%,100%{ opacity:1 } 50%{ opacity:.35 } }
@media (max-width:480px){ .mock .popup{ display:none; } }

/* sparkline svg stroke */
.spark{ width:100%; height:54px; display:block; }
.spark path.line{ fill:none; stroke:url(#sparkg); stroke-width:2.4; stroke-linecap:round; stroke-linejoin:round; }
.spark path.area{ fill:url(#sparka); stroke:none; }

/* ---------- generic sections ---------- */
.section{ padding:64px 0; }
.section-head{ text-align:center; max-width:640px; margin:0 auto 44px; }
.section-head h2{ font-size:clamp(26px,3.6vw,38px); font-weight:800; margin-top:12px; }
.section-head p{ color:var(--mut); margin-top:14px; font-size:17px; }

/* feature grid */
.feature-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.card{
  border:1px solid var(--border); border-radius:var(--r-lg); background:var(--surface);
  padding:22px; box-shadow:var(--shadow); transition:transform .15s ease, box-shadow .2s ease, border-color .2s;
}
.feature-grid .card:hover{ transform:translateY(-3px); box-shadow:var(--shadow-lg); border-color:var(--border-2); }
.card .icon{
  width:44px; height:44px; border-radius:12px; display:grid; place-items:center; margin-bottom:14px;
  background:var(--grad-soft); color:var(--brand-1); border:1px solid var(--border);
}
.card .icon svg{ width:22px; height:22px; }
.card h3{ font-size:17px; font-weight:700; }
.card p{ color:var(--mut); margin-top:8px; font-size:14.5px; }
@media (max-width:860px){ .feature-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .feature-grid{ grid-template-columns:1fr; } }

/* steps */
.steps{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; counter-reset:step; }
.step{ position:relative; border:1px solid var(--border); border-radius:var(--r-lg); background:var(--surface); padding:24px 22px; box-shadow:var(--shadow); }
.step .num{
  counter-increment:step; width:38px; height:38px; border-radius:50%; display:grid; place-items:center;
  font:800 16px/1 var(--font); color:#fff; background:var(--grad); box-shadow:0 6px 16px rgba(59,108,235,.4);
}
.step .num::before{ content:counter(step); }
.step h3{ font-size:17px; font-weight:700; margin-top:16px; }
.step p{ color:var(--mut); margin-top:8px; font-size:14.5px; }
@media (max-width:760px){ .steps{ grid-template-columns:1fr; } }

/* privacy/cta band */
.band{
  border:1px solid var(--border); border-radius:var(--r-xl); padding:40px;
  background:
    radial-gradient(120% 140% at 0% 0%, var(--hero-glow-1), transparent 55%),
    radial-gradient(120% 140% at 100% 100%, var(--hero-glow-2), transparent 55%),
    var(--surface);
  box-shadow:var(--shadow); text-align:center;
}
.band h2{ font-size:clamp(24px,3.4vw,34px); font-weight:800; }
.band p{ color:var(--mut); margin:14px auto 0; max-width:54ch; font-size:16.5px; }
.band .cta-row{ display:flex; justify-content:center; flex-wrap:wrap; gap:12px; margin-top:26px; }

/* ---------- footer ---------- */
.footer{ border-top:1px solid var(--border); margin-top:24px; }
.footer-inner{ display:flex; flex-wrap:wrap; gap:20px 40px; align-items:center; padding:30px 0; }
.footer .brand{ font-size:15px; }
.footer .links{ display:flex; flex-wrap:wrap; gap:18px; margin-left:auto; font-size:14px; }
.footer .links a{ color:var(--mut); }
.footer .links a:hover{ color:var(--txt); text-decoration:none; }
.footer .copy{ flex-basis:100%; color:var(--mut); font-size:13px; padding-top:6px; }

/* ============================================================
   Analyzer-specific
   ============================================================ */
.page-head{ padding:34px 0 4px; }
.page-head h1{ font-size:clamp(25px,2.8vw,31px); font-weight:800; }
.page-head p{ color:var(--mut); margin-top:10px; font-size:15.5px; max-width:62ch; }

/* uploader */
.uploader{ margin-top:22px; }
.drop{
  display:flex; align-items:center; gap:18px; text-align:left;
  border:1.5px dashed var(--border-2); border-radius:var(--r-lg);
  padding:20px 22px; cursor:pointer; background:var(--surface);
  transition:border-color .15s, background .15s;
}
.drop:hover{ border-color:var(--brand-1); }
.drop.drag{ border-color:var(--brand-1); background:var(--grad-soft); }
.drop .di{ width:46px; height:46px; flex:none; border-radius:12px; display:grid; place-items:center; background:var(--grad-soft); color:var(--brand-1); border:1px solid var(--border); }
.drop .di svg{ width:23px; height:23px; }
.drop .dtxt{ flex:1 1 auto; min-width:0; }
.drop .big{ font-size:15.5px; font-weight:600; }
.drop .big b{ color:var(--brand-1); }
.drop small{ display:block; color:var(--mut); margin-top:4px; font-size:13px; }
.drop .pick{ flex:none; pointer-events:none; }   /* the whole label is the target */
input[type=file]{ display:none; }
.uploader-foot{ display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap; margin-top:12px; }
.demo-link{ font-size:14.5px; font-weight:500; }
.chip{ display:inline-flex; align-items:center; gap:7px; font-size:12.5px; color:var(--mut); border:1px solid var(--border); background:var(--surface); border-radius:var(--r-full); padding:5px 12px; }
.chip svg{ width:14px; height:14px; color:var(--ok); }
.err{ color:var(--leak); margin-top:12px; font-weight:500; }
@media (max-width:560px){ .drop{ flex-wrap:wrap; } .drop .pick{ width:100%; } }

#out{ display:none; margin-top:8px; }

.summary-head{
  position:sticky; top:62px; z-index:20; display:flex; align-items:center; flex-wrap:wrap; gap:12px;
  padding:14px 0; margin-top:14px; background:var(--glass); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.summary-head h2{ font-size:22px; font-weight:800; }
.pill{ display:inline-flex; align-items:center; gap:7px; font-weight:700; font-size:13px; padding:5px 14px; border-radius:var(--r-full); color:#fff; }
.pill::before{ content:""; width:8px; height:8px; border-radius:50%; background:#fff; }
.pill.ok{ background:var(--ok); }
.pill.leak{ background:var(--leak); }
.summary-head .spacer{ margin-left:auto; }

.testinfo{ color:var(--mut); font-size:14px; margin-top:14px; }
.testinfo b{ color:var(--txt); }

.tiles{ display:grid; grid-template-columns:repeat(auto-fill,minmax(150px,1fr)); gap:12px; margin:16px 0; }
.tile{ position:relative; border:1px solid var(--border); border-radius:var(--r); background:var(--surface); padding:13px 15px; box-shadow:var(--shadow); }
.tile .k{ display:flex; align-items:center; gap:5px; font-size:11px; text-transform:uppercase; letter-spacing:.05em; color:var(--mut); }
.tile .v{ font:700 22px/1.1 var(--font); font-variant-numeric:tabular-nums; margin-top:5px; }
.tile .v small{ font-size:12px; font-weight:500; color:var(--mut); }
.tile .info{
  flex:none; width:14px; height:14px; border-radius:50%; border:1px solid var(--border-2);
  color:var(--mut); font:700 9px/1 var(--mono); font-style:normal; display:inline-grid; place-items:center;
  cursor:help; user-select:none; transition:color .15s, border-color .15s;
}
.tile:hover .info, .tile:focus-within .info{ color:var(--brand-1); border-color:var(--brand-1); }
.tile .tip{
  position:absolute; left:12px; right:12px; bottom:calc(100% - 4px); z-index:40; display:none;
  background:var(--surface); color:var(--txt-2); border:1px solid var(--border-2); border-radius:10px;
  box-shadow:var(--shadow-lg); padding:9px 11px; font:400 12px/1.5 var(--font); text-transform:none; letter-spacing:0;
}
.tile:hover .tip, .tile:focus-within .tip{ display:block; }

.chartcard{ border:1px solid var(--border); border-radius:var(--r-lg); background:var(--surface); padding:16px 18px; margin:16px 0; box-shadow:var(--shadow); }
.chartcard h3{ font-size:15px; font-weight:700; margin-bottom:2px; }
.chartcard .sub{ font-size:12.5px; color:var(--mut); margin-bottom:10px; }
.chart-holder{ position:relative; height:240px; }
.chartcard.is-empty .chart-holder{ display:grid; place-items:center; color:var(--mut); font-size:13px; }
.chart-note{ color:var(--warn); font-size:13px; margin:10px 0; }

.block-note{ font-size:13px; line-height:1.6; color:var(--mut); margin:0 0 12px; max-width:80ch; }
.block-note b{ color:var(--txt-2); font-weight:600; }
h2.block{ font-size:20px; font-weight:800; margin:34px 0 10px; }
h3.block{ font-size:13px; font-weight:700; letter-spacing:.04em; text-transform:uppercase; color:var(--brand-1); margin:22px 0 8px; }
table{ border-collapse:collapse; width:100%; font-size:13.5px; margin:8px 0; }
th,td{ text-align:left; padding:8px 10px; border-bottom:1px solid var(--border); vertical-align:top; overflow-wrap:anywhere; }
th{ color:var(--mut); font-weight:600; font-size:12px; text-transform:uppercase; letter-spacing:.03em; }
tbody tr:hover{ background:var(--surface-2); }
code{ font-family:var(--mono); background:var(--surface-2); border:1px solid var(--border); border-radius:6px; padding:1px 6px; font-size:12.5px; }

.policy h2{ font-size:20px; font-weight:800; margin-bottom:6px; }
.policy h3{ font-size:14px; font-weight:700; margin:20px 0 6px; }
.policy ul{ margin:10px 0 0 20px; padding:0; }
.policy li{ margin:8px 0; color:var(--txt-2); }
.policy p{ margin:10px 0; color:var(--txt-2); }

@media (prefers-reduced-motion: reduce){
  *{ animation:none !important; scroll-behavior:auto !important; transition:none !important; }
}