/* ==========================================================================
   CodeToolsHub — landing page styles
   Dark developer theme: near-black canvas, electric indigo accent, mono chips
   ========================================================================== */

:root{
  --bg:#0A0D14;
  --bg-2:#0E121C;
  --panel:#121826;
  --panel-2:#161D2E;
  --line:#232C3F;
  --line-2:#2E3A52;
  --ink:#E6EAF3;
  --muted:#98A2B8;
  --faint:#6C7689;
  --accent:#7C7CFF;
  --accent-2:#5B5BF0;
  --accent-soft:rgba(124,124,255,.14);
  --cyan:#4CD7E6;
  --green:#41D19A;
  --amber:#E7B34A;
  --r:14px;
  --r-lg:20px;
  --maxw:1120px;
  --ease:cubic-bezier(.22,.8,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Inter',system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  font-size:16.5px;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:'Space Grotesk',system-ui,sans-serif;line-height:1.12;margin:0 0 .5em;letter-spacing:-.02em;font-weight:700}
h1{font-size:clamp(2.15rem,5.2vw,3.55rem);font-weight:700}
h2{font-size:clamp(1.7rem,3.2vw,2.4rem)}
h3{font-size:1.08rem;font-weight:600}
p{margin:0 0 1rem}
a{color:inherit;text-decoration:none}
svg{max-width:100%}
ul,ol{margin:0;padding:0;list-style:none}
code,.mono{font-family:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace}

.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:22px}
.wrap--narrow{max-width:800px}

.ico{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none}

.skip-link{position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;padding:10px 16px;z-index:200;border-radius:0 0 8px 0}
.skip-link:focus{left:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

/* language visibility */
body[data-lang="en"] .lang-pt{display:none}
body[data-lang="pt"] .lang-en{display:none}

/* reveal */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 20px;border-radius:11px;border:1px solid transparent;
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:.95rem;line-height:1;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .25s var(--ease),background .2s,color .2s,border-color .2s;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--lg{padding:15px 26px;font-size:1rem}
.btn--primary{background:linear-gradient(180deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 10px 30px rgba(124,124,255,.32)}
.btn--primary:hover{box-shadow:0 14px 36px rgba(124,124,255,.44)}
.btn--ghost{background:var(--panel);color:var(--ink);border-color:var(--line-2)}
.btn--ghost:hover{background:var(--panel-2);border-color:var(--accent)}

/* eyebrow */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:'JetBrains Mono',monospace;font-weight:500;font-size:.74rem;
  letter-spacing:.1em;text-transform:uppercase;color:var(--accent);
  margin:0 0 16px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 10px var(--accent)}

/* header */
.header{
  position:sticky;top:0;z-index:100;
  background:rgba(10,13,20,.72);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s;
}
.header.is-stuck{border-bottom-color:var(--line);background:rgba(10,13,20,.9)}
.header__inner{display:flex;align-items:center;gap:18px;min-height:70px}
.brand{display:inline-flex;align-items:center;gap:11px}
.brand__mark{
  display:grid;place-items:center;width:38px;height:38px;border-radius:11px;flex:none;
  background:linear-gradient(145deg,var(--accent),var(--accent-2));box-shadow:0 6px 18px rgba(124,124,255,.4);
}
.brand__mark svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.brand__text{font-family:'Space Grotesk',sans-serif;font-size:1.06rem;font-weight:700;letter-spacing:-.02em}
.brand__text b{color:var(--accent)}

.nav{margin-left:auto;display:flex;gap:2px}
.nav a{padding:9px 12px;border-radius:9px;font-size:.92rem;font-weight:500;color:var(--muted);transition:background .2s,color .2s}
.nav a:hover{background:var(--panel);color:var(--ink)}

.langtoggle{display:inline-flex;border:1px solid var(--line-2);border-radius:9px;overflow:hidden;font-family:'JetBrains Mono',monospace}
.langtoggle button{
  background:transparent;border:0;color:var(--muted);font:inherit;font-size:.8rem;font-weight:600;
  padding:8px 11px;cursor:pointer;transition:background .2s,color .2s;
}
.langtoggle button[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent)}

.burger{display:none;flex-direction:column;gap:5px;width:42px;height:38px;align-items:center;justify-content:center;
  background:var(--panel);border:1px solid var(--line-2);border-radius:10px;cursor:pointer}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s,opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:860px){
  .nav{
    position:absolute;left:0;right:0;top:100%;margin:0;flex-direction:column;gap:0;padding:8px 22px 16px;
    background:var(--bg-2);border-bottom:1px solid var(--line);display:none;
  }
  .nav.is-open{display:flex}
  .nav a{padding:12px 6px;border-bottom:1px solid var(--line);border-radius:0}
  .burger{display:flex;order:3}
  .header__cta{display:none}
}

/* hero */
.hero{position:relative;overflow:hidden;padding:clamp(56px,9vw,110px) 0 clamp(40px,6vw,70px)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(760px 440px at 78% -8%,rgba(124,124,255,.22),transparent 60%),
    radial-gradient(600px 400px at 6% 8%,rgba(76,215,230,.10),transparent 58%);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(680px 380px at 70% 0%,#000,transparent 72%);
}
.hero__inner{position:relative;z-index:1;max-width:820px}
.hero h1{margin-bottom:18px}
.hero h1 .grad{background:linear-gradient(120deg,var(--accent),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{font-size:clamp(1.05rem,1.6vw,1.2rem);color:var(--muted);max-width:60ch}
.hero__actions{display:flex;flex-wrap:wrap;gap:13px;margin:28px 0 22px}

.badges{display:flex;flex-wrap:wrap;gap:9px}
.badge{
  display:inline-flex;align-items:center;gap:7px;font-family:'JetBrains Mono',monospace;font-size:.78rem;
  color:var(--muted);background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:6px 13px;
}
.badge svg{width:14px;height:14px;color:var(--green);stroke-width:2.4}

/* sections */
.section{padding:clamp(54px,8vw,92px) 0;position:relative}
.section--alt{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.section__head{max-width:680px;margin-bottom:42px}
.section__head.center{margin-inline:auto;text-align:center}
.section__sub{color:var(--muted);font-size:1.03rem;margin:0}

.grid{display:grid;gap:18px}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid--props{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}

/* value props */
.prop{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 24px;transition:border-color .3s,transform .3s var(--ease)}
.prop:hover{border-color:var(--line-2);transform:translateY(-3px)}
.prop__ico{display:grid;place-items:center;width:46px;height:46px;border-radius:12px;margin-bottom:16px;background:var(--accent-soft)}
.prop__ico svg{width:24px;height:24px;color:var(--accent);stroke-width:1.8}
.prop h3{margin-bottom:6px}
.prop p{color:var(--muted);font-size:.94rem;margin:0}

/* tool categories */
.cat{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px 22px;transition:border-color .3s,transform .3s var(--ease)}
.cat:hover{border-color:var(--accent);transform:translateY(-3px)}
.cat__top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.cat__ico{display:grid;place-items:center;width:40px;height:40px;border-radius:11px;background:var(--accent-soft);flex:none}
.cat__ico svg{width:22px;height:22px;color:var(--accent);stroke-width:1.8}
.cat__top h3{margin:0}
.cat__count{margin-left:auto;font-family:'JetBrains Mono',monospace;font-size:.74rem;color:var(--faint);border:1px solid var(--line);border-radius:999px;padding:3px 9px}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chip{
  font-family:'JetBrains Mono',monospace;font-size:.78rem;color:var(--ink);
  background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:5px 9px;
}
.chip--soon{color:var(--faint);border-style:dashed}
.chip--soon::after{content:" · soon";color:var(--amber);opacity:.8}

/* use cases */
.uses{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.use{display:flex;gap:15px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:22px 20px;transition:border-color .25s,transform .25s var(--ease)}
.use:hover{border-color:var(--line-2);transform:translateX(3px)}
.use__n{font-family:'JetBrains Mono',monospace;font-weight:700;color:var(--accent);flex:none;font-size:1.05rem}
.use h3{margin-bottom:4px;font-size:1.02rem}
.use p{margin:0;color:var(--muted);font-size:.92rem}

/* pro band */
.band{background:linear-gradient(120deg,var(--accent-2),var(--accent));border-radius:var(--r-lg);padding:clamp(28px,4vw,44px);position:relative;overflow:hidden}
.band::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1px);background-size:20px 20px;opacity:.5;pointer-events:none}
.band__inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.band h2{color:#fff;margin:0 0 6px}
.band p{color:rgba(255,255,255,.9);margin:0;max-width:52ch}
.band .btn--ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.4);color:#fff}
.band .btn--ghost:hover{background:rgba(255,255,255,.24)}

/* faq */
.faq{display:grid;gap:11px}
.faq__item{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:2px 20px;transition:border-color .25s}
.faq__item[open]{border-color:var(--accent)}
.faq summary{list-style:none;cursor:pointer;padding:16px 0;font-family:'Space Grotesk',sans-serif;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;color:var(--accent);line-height:1;transition:transform .25s var(--ease);flex:none}
.faq__item[open] summary::after{transform:rotate(45deg)}
.faq p{color:var(--muted);font-size:.95rem;margin:0;padding:0 0 18px}

/* contact / cta final */
.cta{text-align:center;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(34px,5vw,56px) 28px}
.cta h2{margin-bottom:10px}
.cta p{color:var(--muted);max-width:52ch;margin:0 auto 22px}

/* footer */
.footer{border-top:1px solid var(--line);padding:40px 0;margin-top:20px;color:var(--muted);font-size:.92rem}
.footer__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer a:hover{color:var(--accent)}
.footer__links{display:flex;gap:18px}

@media (max-width:600px){
  .band__inner{flex-direction:column;align-items:flex-start}
}