/* =========================================================
   Trading Commodities Brazil — Institutional Theme
   Palette: #0B0B0D #C89B3C #1E2329 #F5F5F5 #2D5A3D
   ========================================================= */
:root{
  --tc-black:#0B0B0D;
  --tc-gold:#C89B3C;
  --tc-gold-soft:#d9b463;
  --tc-petrol:#1E2329;
  --tc-petrol-2:#262d35;
  --tc-white:#F5F5F5;
  --tc-green:#2D5A3D;
  --tc-muted:#9aa0a6;
  --tc-line:rgba(245,245,245,.10);
  --tc-maxw:1280px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--tc-black);
  color:var(--tc-white);
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  font-weight:400;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{font-family:'Montserrat',sans-serif;font-weight:700;line-height:1.12;margin:0;letter-spacing:-.01em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
p{margin:0 0 1rem}

.tc-container{width:100%;max-width:var(--tc-maxw);margin:0 auto;padding:0 24px}

.tc-eyebrow{
  display:inline-block;font-family:'Montserrat',sans-serif;font-weight:600;
  text-transform:uppercase;letter-spacing:.22em;font-size:.72rem;
  color:var(--tc-gold);margin-bottom:1.1rem;
}

/* ---------- Header ---------- */
.tc-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .3s ease,backdrop-filter .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.tc-header.is-scrolled{
  background:rgba(11,11,13,.86);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--tc-line);
}
.tc-header__inner{display:flex;align-items:center;justify-content:space-between;height:78px;gap:24px}
.tc-brand{display:flex;align-items:center;gap:12px}
.tc-brand__mark{
  width:42px;height:42px;border:1px solid var(--tc-gold);color:var(--tc-gold);
  display:grid;place-items:center;font-family:'Montserrat',sans-serif;font-weight:800;
  letter-spacing:.04em;border-radius:3px;
}
.tc-brand__name{font-family:'Montserrat',sans-serif;font-weight:700;font-size:1.02rem;text-transform:uppercase;letter-spacing:.12em;line-height:1}
.tc-brand__name small{display:block;font-size:.62rem;color:var(--tc-gold);letter-spacing:.36em;margin-top:3px;font-weight:600}

.tc-nav{display:flex;align-items:center;gap:30px}
.tc-nav a{
  font-family:'Montserrat',sans-serif;font-weight:600;font-size:.74rem;text-transform:uppercase;
  letter-spacing:.13em;color:var(--tc-white);opacity:.82;position:relative;padding:6px 0;transition:.2s;
}
.tc-nav a:hover{opacity:1;color:var(--tc-gold-soft)}
.tc-nav a.is-active{color:var(--tc-gold);opacity:1}
.tc-nav a.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--tc-gold)}

.tc-header__right{display:flex;align-items:center;gap:18px}
.tc-lang{display:flex;align-items:center;gap:8px;font-family:'Montserrat',sans-serif;font-weight:600;font-size:.74rem;color:var(--tc-muted)}
.tc-lang a{transition:.2s}
.tc-lang a:hover{color:var(--tc-white)}
.tc-lang a.is-active{color:var(--tc-gold)}

.tc-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.tc-burger span{width:26px;height:2px;background:var(--tc-white);transition:.3s}
.tc-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.tc-burger.is-open span:nth-child(2){opacity:0}
.tc-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.tc-btn{
  display:inline-flex;align-items:center;gap:10px;font-family:'Montserrat',sans-serif;font-weight:600;
  font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;padding:15px 30px;border-radius:2px;
  transition:.25s;cursor:pointer;border:1px solid transparent;
}
.tc-btn--gold{background:var(--tc-gold);color:var(--tc-black)}
.tc-btn--gold:hover{background:var(--tc-gold-soft)}
.tc-btn--ghost{border-color:rgba(245,245,245,.3);color:var(--tc-white)}
.tc-btn--ghost:hover{border-color:var(--tc-gold);color:var(--tc-gold)}
.tc-btn--dark{background:var(--tc-petrol);color:var(--tc-white);border-color:var(--tc-line)}
.tc-btn--dark:hover{border-color:var(--tc-gold)}

/* ---------- Hero ---------- */
.tc-hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  background:
    linear-gradient(90deg,rgba(11,11,13,.96) 0%,rgba(11,11,13,.78) 45%,rgba(11,11,13,.45) 100%),
    url('https://images.unsplash.com/photo-1577760258779-e787a1733016?q=80&w=2070&auto=format&fit=crop');
  background-size:cover;background-position:center;
  padding:140px 0 90px;
}
.tc-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:140px;background:linear-gradient(to top,var(--tc-black),transparent)}
.tc-hero__content{position:relative;z-index:2;max-width:760px}
.tc-hero h1{font-size:clamp(2.3rem,5.2vw,4.2rem);font-weight:800;margin-bottom:1.5rem}
.tc-hero h1 .gold{color:var(--tc-gold)}
.tc-hero__sub{font-size:clamp(1.05rem,1.6vw,1.35rem);color:#d7d9dc;max-width:600px;margin-bottom:2.4rem;font-weight:400}
.tc-hero__cta{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- Section base ---------- */
.tc-section{padding:96px 0;position:relative}
.tc-section--petrol{background:var(--tc-petrol)}
.tc-section__head{max-width:720px;margin-bottom:54px}
.tc-section__head.center{margin-left:auto;margin-right:auto;text-align:center}
.tc-section__head h2{font-size:clamp(1.8rem,3.4vw,2.7rem);margin-bottom:1rem}
.tc-section__head p{color:var(--tc-muted);font-size:1.08rem}

/* ---------- What we do ---------- */
.tc-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.tc-block{
  background:var(--tc-petrol);border:1px solid var(--tc-line);border-radius:4px;padding:34px 28px;
  transition:.3s;position:relative;overflow:hidden;display:block;
}
.tc-block::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:var(--tc-gold);transform:scaleX(0);transform-origin:left;transition:.3s}
.tc-block:hover{transform:translateY(-6px);border-color:rgba(200,155,60,.4)}
.tc-block:hover::before{transform:scaleX(1)}
.tc-block__icon{color:var(--tc-gold);font-size:1.5rem;margin-bottom:18px}
.tc-block h3{font-size:1.25rem;margin-bottom:18px}
.tc-block ul{list-style:none;margin:0;padding:0}
.tc-block li{padding:8px 0;border-top:1px solid var(--tc-line);color:#c9ccd1;font-size:.95rem;display:flex;align-items:center;gap:10px}
.tc-block li::before{content:"";width:5px;height:5px;background:var(--tc-green);border-radius:50%;flex:0 0 auto}
.tc-block__more{margin-top:20px;font-family:'Montserrat',sans-serif;font-weight:600;font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:var(--tc-gold)}

/* ---------- About ---------- */
.tc-about{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.tc-about__media{aspect-ratio:4/3;border-radius:4px;border:1px solid var(--tc-line);
  background:linear-gradient(rgba(11,11,13,.25),rgba(11,11,13,.55)),url('https://images.unsplash.com/photo-1605648916361-9bc12ad6a569?q=80&w=1974&auto=format&fit=crop');
  background-size:cover;background-position:center;position:relative}
.tc-about__media::after{content:"";position:absolute;inset:14px;border:1px solid rgba(200,155,60,.35)}
.tc-about h2{font-size:clamp(1.8rem,3.2vw,2.6rem);margin-bottom:1.4rem}
.tc-about__statement{font-size:1.25rem;color:#e3e4e6;font-weight:500;line-height:1.6;border-left:2px solid var(--tc-gold);padding-left:22px;margin-bottom:2rem}

/* ---------- Opportunities ---------- */
.tc-grid-opps{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.tc-opp{
  background:var(--tc-petrol);border:1px solid var(--tc-line);border-radius:4px;overflow:hidden;
  display:flex;flex-direction:column;transition:.3s;
}
.tc-opp:hover{border-color:rgba(200,155,60,.4);transform:translateY(-4px)}
.tc-opp__media{height:190px;position:relative;background-size:cover;background-position:center;
  background-image:linear-gradient(rgba(11,11,13,.35),rgba(11,11,13,.7)),url('https://images.unsplash.com/photo-1518709268805-4e9042af9f23?q=80&w=2069&auto=format&fit=crop')}
.tc-opp__cat{position:absolute;top:16px;left:16px;background:rgba(11,11,13,.7);border:1px solid var(--tc-line);
  font-family:'Montserrat',sans-serif;font-weight:600;font-size:.64rem;text-transform:uppercase;letter-spacing:.14em;
  color:var(--tc-gold);padding:6px 12px;border-radius:2px}
.tc-opp__body{padding:26px 24px;display:flex;flex-direction:column;flex:1}
.tc-opp h3{font-size:1.18rem;margin-bottom:16px}
.tc-opp__conf{display:flex;align-items:center;gap:9px;color:var(--tc-muted);font-size:.86rem;margin-bottom:8px}
.tc-opp__conf i{color:var(--tc-gold)}
.tc-opp__qualified{font-size:.78rem;color:#7e848a;font-style:italic;margin-bottom:20px}
.tc-opp__cta{margin-top:auto}
.tc-opp__cta a{font-family:'Montserrat',sans-serif;font-weight:600;font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:var(--tc-gold);display:inline-flex;align-items:center;gap:8px}
.tc-opp__cta a:hover{gap:12px;transition:.2s}

/* ---------- Page header ---------- */
.tc-pagehead{
  padding:160px 0 70px;position:relative;
  background:linear-gradient(rgba(11,11,13,.82),rgba(11,11,13,.92)),url('https://images.unsplash.com/photo-1494412574643-ff11b0a5c1c3?q=80&w=2070&auto=format&fit=crop');
  background-size:cover;background-position:center;border-bottom:1px solid var(--tc-line);
}
.tc-pagehead h1{font-size:clamp(2rem,4vw,3.2rem);margin-bottom:1rem}
.tc-pagehead p{color:#cfd1d4;max-width:680px;font-size:1.12rem}

/* ---------- Feature list ---------- */
.tc-features{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.tc-feature{background:var(--tc-petrol);border:1px solid var(--tc-line);border-radius:4px;padding:30px 28px;transition:.3s}
.tc-feature:hover{border-color:rgba(200,155,60,.4)}
.tc-feature h3{font-size:1.2rem;color:var(--tc-gold);margin-bottom:10px}
.tc-feature p{color:#c0c3c8;margin:0}

/* ---------- Forms ---------- */
.tc-form{display:grid;gap:18px}
.tc-form .row2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.tc-field label{display:block;font-family:'Montserrat',sans-serif;font-weight:600;font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;color:var(--tc-muted);margin-bottom:8px}
.tc-field input,.tc-field select,.tc-field textarea{
  width:100%;background:var(--tc-black);border:1px solid var(--tc-line);color:var(--tc-white);
  padding:13px 15px;border-radius:3px;font-family:'Inter',sans-serif;font-size:.95rem;transition:.2s;
}
.tc-field input:focus,.tc-field select:focus,.tc-field textarea:focus{outline:none;border-color:var(--tc-gold)}
.tc-field textarea{min-height:130px;resize:vertical}
.tc-form .tc-btn{justify-content:center}
.tc-alert{background:rgba(45,90,61,.18);border:1px solid var(--tc-green);color:#bfe3cb;padding:14px 18px;border-radius:3px;font-size:.95rem}
.tc-error{color:#e8a0a0;font-size:.85rem;margin-top:6px}
.tc-form-note{color:var(--tc-muted);font-size:.86rem}

.tc-contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.tc-contact-info h3{color:var(--tc-gold);font-size:1.1rem;margin:0 0 6px}
.tc-contact-info p{color:#c5c8cc;margin:0 0 22px}
.tc-contact-info a{color:var(--tc-white)}
.tc-contact-info a:hover{color:var(--tc-gold)}

/* ---------- Footer ---------- */
.tc-footer{background:#08080a;border-top:1px solid var(--tc-line);padding:64px 0 0;position:relative}
.tc-footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;position:relative;z-index:2}
.tc-brand__name--footer{font-size:1.1rem}
.tc-footer__tagline{color:var(--tc-muted);margin:16px 0;max-width:300px}
.tc-footer__loc{color:#c5c8cc;font-size:.95rem}
.tc-footer__loc i{color:var(--tc-gold);margin-right:8px}
.tc-footer__col h4{font-family:'Montserrat',sans-serif;font-size:.78rem;text-transform:uppercase;letter-spacing:.14em;color:var(--tc-white);margin-bottom:18px}
.tc-footer__col a{display:block;color:var(--tc-muted);font-size:.92rem;padding:5px 0;transition:.2s}
.tc-footer__col a:hover{color:var(--tc-gold)}
.tc-footer__social{display:flex;gap:12px;margin-top:14px}
.tc-footer__social a{width:38px;height:38px;border:1px solid var(--tc-line);border-radius:50%;display:grid;place-items:center;color:var(--tc-white);transition:.25s}
.tc-footer__social a:hover{border-color:var(--tc-gold);color:var(--tc-gold)}
.tc-footer__map{
  position:absolute;right:0;top:0;bottom:0;width:42%;opacity:.10;pointer-events:none;
  background:url('https://upload.wikimedia.org/wikipedia/commons/8/80/World_map_-_low_resolution.svg') no-repeat right center;
  background-size:contain;filter:invert(1) sepia(1) saturate(2) hue-rotate(5deg);
}
.tc-footer__bottom{border-top:1px solid var(--tc-line);margin-top:54px;padding:22px 0;color:var(--tc-muted);font-size:.84rem}

/* ---------- Reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
[data-reveal].in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .tc-grid-4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .tc-about{grid-template-columns:1fr;gap:36px}
  .tc-contact-grid{grid-template-columns:1fr;gap:40px}
}
@media (max-width:768px){
  .tc-nav{
    position:fixed;top:78px;left:0;right:0;background:rgba(11,11,13,.97);backdrop-filter:blur(12px);
    flex-direction:column;align-items:flex-start;gap:0;padding:10px 24px 24px;
    border-bottom:1px solid var(--tc-line);max-height:0;overflow:hidden;transition:max-height .35s ease;
  }
  .tc-nav.is-open{max-height:480px}
  .tc-nav a{width:100%;padding:14px 0;border-bottom:1px solid var(--tc-line);font-size:.82rem}
  .tc-nav a.is-active::after{display:none}
  .tc-burger{display:flex}
  .tc-header.is-scrolled,.tc-header{background:rgba(11,11,13,.92);backdrop-filter:blur(12px)}
  .tc-grid-4,.tc-grid-opps,.tc-features,.tc-form .row2{grid-template-columns:1fr}
  .tc-footer__grid{grid-template-columns:1fr}
  .tc-footer__map{display:none}
  .tc-section{padding:64px 0}
  .tc-hero{min-height:auto;padding:130px 0 70px}
}