/* ============================================================
   Purser — brand palette
   Ink Navy #0E2A47 · Waterline Cyan #16B3C6 · Deep Sea #071B2E
   Paper #FFFFFF · Slate #5B7085

   Theming: light by default; dark via prefers-color-scheme OR an
   explicit html[data-theme="dark"]. A "light" override wins over the
   media query so the toggle can force either mode.
   ============================================================ */
:root{
  /* brand constants (theme-independent) */
  --navy:#0E2A47;
  --cyan:#16B3C6;
  --cyan-600:#0f8fa0;
  --deep:#071B2E;
  --deep-2:#0c2740;

  /* semantic tokens — LIGHT defaults */
  --bg:#ffffff;
  --bg-alt:#f4f8fb;
  --surface:#ffffff;
  --surface-2:#f4f8fb;
  --text:#12212f;
  --muted:#5B7085;
  --border:#e6ecf2;
  --heading:#0E2A47;
  --accent:#0b7c8b;
  --nav-bg:rgba(255,255,255,.86);
  --nav-text:#0E2A47;
  --shadow:0 10px 30px rgba(14,42,71,.08);
  --shadow-lg:0 24px 60px rgba(7,27,46,.18);

  --radius:14px;
  --wrap:1120px;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
}

/* DARK tokens — shared by explicit toggle and system preference */
:root[data-theme="dark"]{
  --bg:#071B2E;
  --bg-alt:#0a2138;
  --surface:#0d2843;
  --surface-2:#0a2138;
  --text:#dce9f2;
  --muted:#9fbacd;
  --border:rgba(255,255,255,.10);
  --heading:#ffffff;
  --accent:#43cfe0;
  --nav-bg:rgba(7,27,46,.82);
  --nav-text:#eaf3f8;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --shadow-lg:0 24px 60px rgba(0,0,0,.5);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#071B2E;
    --bg-alt:#0a2138;
    --surface:#0d2843;
    --surface-2:#0a2138;
    --text:#dce9f2;
    --muted:#9fbacd;
    --border:rgba(255,255,255,.10);
    --heading:#ffffff;
    --accent:#43cfe0;
    --nav-bg:rgba(7,27,46,.82);
    --nav-text:#eaf3f8;
    --shadow:0 10px 30px rgba(0,0,0,.35);
    --shadow-lg:0 24px 60px rgba(0,0,0,.5);
  }
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);color:var(--text);background:var(--bg);
  line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  transition:background-color .3s ease,color .3s ease;
}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--cyan)}
code{font-family:var(--mono);font-size:.92em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ---------------- Nav ---------------- */
.nav{position:sticky;top:0;z-index:50;background:var(--nav-bg);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--border)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;color:var(--heading);font-weight:800;font-size:20px;letter-spacing:-.02em}
.brand__mark{width:30px;height:30px}
.brand__word{color:inherit}
.nav__links{display:flex;align-items:center;gap:26px}
.nav__links a{color:var(--nav-text);font-weight:500;font-size:15px}
.nav__links a:hover{color:var(--cyan)}
.nav__gh{display:inline-flex;align-items:center;gap:7px;background:var(--navy);color:#fff !important;
  padding:8px 14px;border-radius:9px;font-weight:600;border:1px solid var(--border)}
.nav__gh:hover{background:#16375c}

/* theme toggle */
.theme{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
  border-radius:9px;border:1px solid var(--border);background:transparent;color:var(--nav-text);
  cursor:pointer;transition:.2s}
.theme:hover{background:var(--bg-alt);color:var(--cyan)}
.theme svg{width:19px;height:19px}

.nav__toggle{display:none;background:none;border:0;cursor:pointer;width:40px;height:40px;flex-direction:column;gap:5px;justify-content:center;align-items:center}
.nav__toggle span{display:block;width:22px;height:2px;background:var(--nav-text);transition:.25s}

/* ---------------- Hero (intentionally dark in both themes) ---------------- */
.hero{position:relative;background:var(--deep);color:#eaf3f8;overflow:hidden;padding:84px 0 72px}
.hero__bg{position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(1100px 460px at 78% -8%, rgba(22,179,198,.28), transparent 60%),
    radial-gradient(760px 420px at 8% 4%, rgba(22,179,198,.12), transparent 55%),
    linear-gradient(180deg,#071B2E 0%, #0a2138 100%);}
.hero__bg::after{content:"";position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;mask-image:radial-gradient(circle at 50% 0%,#000,transparent 72%)}
.hero__inner{position:relative;text-align:center}
.pill{display:inline-flex;align-items:center;gap:9px;background:rgba(22,179,198,.12);
  border:1px solid rgba(22,179,198,.4);color:#bdeff5;padding:7px 15px;border-radius:999px;font-size:13.5px;font-weight:500}
.pill:hover{color:#fff}
.pill__dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(22,179,198,.25)}
.hero__title{font-size:clamp(34px,6vw,62px);line-height:1.05;letter-spacing:-.03em;margin:22px 0 0;color:#fff;font-weight:800}
.hero__sub{max-width:720px;margin:20px auto 0;font-size:clamp(16px,2.2vw,19px);color:#a9c2d3}
.hero__sub strong{color:#eaf3f8;font-weight:600}
.hero__cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:11px;font-weight:600;font-size:15.5px;transition:.2s;border:1px solid transparent}
.btn--primary{background:var(--cyan);color:#04222a !important}
.btn--primary:hover{background:#3ac6d7;transform:translateY(-1px)}
.btn--ghost{background:rgba(255,255,255,.06);color:#eaf3f8 !important;border-color:rgba(255,255,255,.22)}
.btn--ghost:hover{background:rgba(255,255,255,.12)}

/* terminal */
.term{max-width:760px;margin:46px auto 0;text-align:left;border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.09)}
.term__bar{display:flex;align-items:center;gap:8px;padding:11px 15px;background:#0c2033;border-bottom:1px solid rgba(255,255,255,.07)}
.term__bar i{width:11px;height:11px;border-radius:50%;background:#33465a}
.term__bar i:first-child{background:#ff5f57}.term__bar i:nth-child(2){background:#febc2e}.term__bar i:nth-child(3){background:#28c840}
.term__title{margin-left:10px;color:#6f8598;font-size:12.5px;font-family:var(--mono)}
.term__body{margin:0;padding:20px;background:#08192a;color:#cfe0ec;font-family:var(--mono);font-size:13.5px;line-height:1.7;overflow-x:auto}
.c-dim{color:#5f7a90}.c-cmd{color:#16B3C6;font-weight:600}
.c-ok{color:#3fd08a}.c-warn{color:#f4b740}.c-bad{color:#ff6b6b}

/* ---------------- Trust strip ---------------- */
.strip{background:var(--deep-2);color:#cfe0ec;border-bottom:1px solid rgba(255,255,255,.06)}
.strip__inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px;padding:22px 24px}
.strip__item{display:flex;flex-direction:column;align-items:center;flex:1;min-width:130px}
.strip__item b{font-size:24px;color:#fff;font-weight:800;letter-spacing:-.02em}
.strip__item span{font-size:13px;color:#89a3b6}

/* ---------------- Sections ---------------- */
.section{padding:82px 0}
.section--alt{background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.eyebrow{color:var(--accent);font-weight:700;letter-spacing:.14em;text-transform:uppercase;font-size:12.5px;margin:0 0 10px}
.section__title{font-size:clamp(26px,3.6vw,38px);letter-spacing:-.02em;color:var(--heading);margin:0;font-weight:800;max-width:24ch}
.section__lead{max-width:66ch;color:var(--muted);font-size:17px;margin:16px 0 40px}
.section__foot{margin-top:26px;color:var(--muted);font-size:14.5px}

/* grids + cards */
.grid{display:grid;gap:20px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-3px);border-color:var(--cyan);box-shadow:var(--shadow-lg)}
.card h3{margin:0 0 8px;color:var(--heading);font-size:18px}
.card p{margin:0;color:var(--muted);font-size:14.5px}
.card code{background:var(--surface-2);padding:1px 5px;border-radius:5px;color:var(--heading)}

/* features */
.feat__item{display:block}
.feat__ico{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;
  background:linear-gradient(160deg,rgba(22,179,198,.16),rgba(22,179,198,.28));margin-bottom:14px;border:1px solid rgba(22,179,198,.35);
  color:var(--accent)}
.feat__ico svg{width:24px;height:24px}
.feat__item h3{margin:0 0 6px;color:var(--heading);font-size:19px}
.feat__item p{margin:0;color:var(--muted);font-size:15px}
.feat__item code{background:var(--surface-2);border:1px solid var(--border);padding:1px 5px;border-radius:5px;color:var(--heading)}

/* use boxes */
.usebox{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.usebox h3{margin:0 0 6px;color:var(--heading)}
.usebox p{margin:0 0 16px;color:var(--muted);font-size:14.5px}

/* code blocks (dark in both themes) */
.code{background:var(--deep);border-radius:12px;position:relative;overflow:hidden;border:1px solid #0c2740}
.code pre{margin:0;padding:20px;overflow-x:auto}
.code code{color:#cfe0ec;font-family:var(--mono);font-size:13.5px;line-height:1.65}
.code--copy .copy{position:absolute;top:10px;right:10px;background:rgba(255,255,255,.08);color:#cfe0ec;border:1px solid rgba(255,255,255,.18);
  border-radius:7px;padding:5px 11px;font-size:12.5px;cursor:pointer;font-family:var(--sans);transition:.2s}
.code--copy .copy:hover{background:rgba(22,179,198,.25);color:#fff}
.code--copy .copy.done{background:var(--cyan);color:#04222a;border-color:var(--cyan)}
.hint{color:var(--muted);font-size:13.5px;margin:12px 2px 0}

/* compare table */
.tablewrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);background:var(--surface)}
.cmp{width:100%;border-collapse:collapse;min-width:720px;font-size:14.5px}
.cmp th,.cmp td{padding:13px 16px;text-align:center;border-bottom:1px solid var(--border)}
.cmp thead th{background:var(--navy);color:#fff;font-weight:600;position:sticky;top:0}
.cmp th:first-child,.cmp td:first-child{text-align:left;color:var(--text)}
.cmp tbody tr:last-child td{border-bottom:0}
.cmp tbody tr:nth-child(even){background:var(--bg-alt)}
.cmp .me{background:rgba(22,179,198,.12);color:var(--heading);font-weight:700}
.cmp thead .me{background:var(--cyan);color:#04222a}

/* tabs */
.tabs__btns{display:inline-flex;gap:6px;background:var(--bg-alt);padding:6px;border-radius:12px;border:1px solid var(--border);margin-bottom:18px}
.tab{border:0;background:none;padding:9px 20px;border-radius:9px;font-weight:600;color:var(--muted);cursor:pointer;font-family:var(--sans);font-size:14.5px;transition:.2s}
.tab.is-active{background:var(--surface);color:var(--heading);box-shadow:var(--shadow)}
.tabs__panel{display:none}
.tabs__panel.is-active{display:block;animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

/* CTA (dark in both themes) */
.cta{background:linear-gradient(160deg,#0E2A47,#071B2E);color:#eaf3f8;padding:78px 0;text-align:center}
.cta__inner h2{font-size:clamp(26px,4vw,40px);color:#fff;margin:0;letter-spacing:-.02em}
.cta__inner p{max-width:60ch;margin:16px auto 0;color:#a9c2d3;font-size:17px}
.cta .hero__cta{margin-top:28px}

/* Footer (dark in both themes) */
.foot{background:var(--deep);color:#a9c2d3;padding:56px 0 0}
.foot__inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;padding-bottom:40px}
.foot__brand .brand__mark{width:34px;height:34px;vertical-align:middle}
.foot__brand .brand__word{color:#fff;font-weight:800;font-size:22px;margin-left:8px}
.foot__brand p{margin:14px 0 0;font-size:14px;max-width:34ch}
.foot__col h4{color:#fff;font-size:14px;margin:0 0 14px;letter-spacing:.02em}
.foot__col a{display:block;color:#a9c2d3;font-size:14.5px;margin-bottom:10px}
.foot__col a:hover{color:var(--cyan)}
.foot__bar{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:18px 24px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:#6f8598}

/* ---------------- Responsive ---------------- */
@media(max-width:860px){
  .nav__links{position:fixed;inset:66px 0 auto 0;flex-direction:column;background:var(--bg);gap:0;
    padding:8px 0 16px;border-bottom:1px solid var(--border);box-shadow:var(--shadow);
    transform:translateY(-140%);transition:transform .28s ease;align-items:stretch}
  .nav__links.open{transform:none}
  .nav__links a{padding:13px 24px}
  .nav__gh{margin:8px 24px 0;justify-content:center}
  .theme{margin:12px 24px 0;width:auto;height:auto;padding:11px;gap:8px}
  .theme::after{content:attr(data-label);font-family:var(--sans);font-weight:600;font-size:14.5px}
  .nav__toggle{display:flex}
  .nav__toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav__toggle.open span:nth-child(2){opacity:0}
  .nav__toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .grid--3,.grid--2{grid-template-columns:1fr}
  .foot__inner{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){
  .section{padding:60px 0}
  .hero{padding:60px 0 54px}
  .strip__item{min-width:44%}
  .foot__inner{grid-template-columns:1fr}
}

/* hero microcopy under the CTA */
.hero__meta{margin-top:16px;color:#88a2b6;font-size:13px;letter-spacing:.01em}

/* persona cards ("who it's for") */
.persona{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s,border-color .2s}
.persona:hover{transform:translateY(-3px);border-color:var(--cyan);box-shadow:var(--shadow-lg)}
.persona__ico{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:13px;
  background:linear-gradient(160deg,rgba(22,179,198,.16),rgba(22,179,198,.28));border:1px solid rgba(22,179,198,.35);
  color:var(--accent);margin-bottom:16px}
.persona__ico svg{width:26px;height:26px}
.persona h3{margin:0 0 8px;color:var(--heading);font-size:20px}
.persona p{margin:0 0 16px;color:var(--muted);font-size:15.5px}
.persona__link{font-weight:600;font-size:15px}

/* keyboard focus — visible on light and dark surfaces */
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.hero :focus-visible,.cta :focus-visible,.foot :focus-visible,.strip :focus-visible{outline-color:#7fe3ef}
.btn:focus-visible,.nav__gh:focus-visible,.theme:focus-visible{outline-offset:3px}

/* hero line-break only where there's room */
@media(max-width:640px){ .br-lg{display:none} }

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