/* ===================================================================
   GRUPO LOGUIMINAS — Design System
   Paleta industrial: vermelho da marca + grafite + tons de pedra
   =================================================================== */
:root{
  --red:#C8102E;
  --red-dark:#9E0B23;
  --red-soft:#E23B4E;
  --ink:#0E0F12;
  --ink-2:#16181D;
  --ink-3:#22252C;
  --stone:#F2EFEA;
  --stone-2:#E4DECF;
  --stone-line:#D8D2C7;
  --paper:#FBFAF7;
  --text:#1B1D22;
  --muted:#5C6068;
  --muted-light:#A9AEB6;
  --white:#fff;
  --amber:#E8A13A;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 18px 50px -20px rgba(14,15,18,.35);
  --shadow-lg:0 30px 70px -25px rgba(14,15,18,.55);
  --maxw:1160px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--text);background:var(--paper);line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:24px}

h1,h2,h3,.brand-word{font-family:"Archivo",sans-serif;letter-spacing:-.02em;line-height:1.05}
h1{font-size:clamp(2.3rem,5.6vw,4.3rem);font-weight:900}
h2{font-size:clamp(1.7rem,3.6vw,2.7rem);font-weight:800}
h3{font-size:1.18rem;font-weight:700;letter-spacing:-.01em}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  font-family:"Archivo",sans-serif;font-weight:700;font-size:.98rem;letter-spacing:.01em;
  padding:.85rem 1.5rem;border-radius:999px;border:2px solid transparent;
  cursor:pointer;transition:transform .25s var(--ease),background .25s,box-shadow .25s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn-red{background:var(--red);color:#fff;box-shadow:0 12px 26px -12px rgba(200,16,46,.7)}
.btn-red:hover{background:var(--red-dark)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.35);backdrop-filter:blur(4px)}
.btn-ghost:hover{background:rgba(255,255,255,.14)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(14,15,18,.82);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;gap:24px;height:74px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{flex:none;border-radius:8px}
.brand-word{display:flex;flex-direction:column;font-weight:900;font-size:1.15rem;color:#fff;letter-spacing:.02em}
.brand-word small{font-family:"Inter";font-weight:600;font-size:.6rem;letter-spacing:.22em;color:var(--muted-light)}
.nav{display:flex;gap:28px;margin-left:auto}
.nav a{color:#D6D9DE;font-size:.95rem;font-weight:500;position:relative;padding:4px 0;transition:color .2s}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--red);transition:width .25s var(--ease)}
.nav a:hover{color:#fff}.nav a:hover::after{width:100%}
.header-cta{margin-left:8px;padding:.62rem 1.2rem;font-size:.9rem}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;margin-left:auto;padding:6px}
.nav-toggle span{width:26px;height:2px;background:#fff;border-radius:2px;transition:.3s}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding-top:72px}
.hero-media{position:absolute;inset:0;background:url('/assets/hero.webp') center/cover no-repeat;transform:scale(1.04);filter:saturate(1.05)}
.hero-scrim{position:absolute;inset:0;background:
  linear-gradient(100deg,rgba(14,15,18,.94) 8%,rgba(14,15,18,.72) 42%,rgba(14,15,18,.34) 78%),
  linear-gradient(0deg,rgba(14,15,18,.96),rgba(14,15,18,0) 55%)}
.hero-inner{position:relative;padding-block:clamp(64px,9vw,120px) 60px;max-width:830px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;color:#EBD7DB;margin-bottom:22px}
.eyebrow .dot{width:9px;height:9px;border-radius:50%;background:var(--red);box-shadow:0 0 0 5px rgba(200,16,46,.25)}
.hero h1{margin-bottom:20px}
.hero .hl{color:#fff;background:linear-gradient(180deg,transparent 62%,rgba(200,16,46,.55) 62%)}
.lead{font-size:clamp(1.05rem,1.8vw,1.28rem);color:#C9CDD4;max-width:600px;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:12px;padding-block:26px;border-top:1px solid rgba(255,255,255,.12);margin-top:8px}
.stat{padding:6px 4px}
.stat b{display:block;font-family:"Archivo";font-size:clamp(1.6rem,3vw,2.3rem);font-weight:900;color:#fff}
.stat span{font-size:.82rem;color:var(--muted-light)}

/* ---------- Sections ---------- */
.section{padding-block:clamp(64px,8vw,110px)}
.section-dark{background:var(--ink);color:#fff}
.section-stone{background:var(--stone)}
.kicker{font-family:"Archivo";font-weight:700;font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:var(--red);margin-bottom:14px}
.kicker.light{color:var(--red-soft)}
.section-head{max-width:640px;margin-bottom:52px}
.section-sub{color:var(--muted);font-size:1.08rem;margin-top:14px}
.section-dark .section-sub{color:#B7BCC4}
.grid-2{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.grid-2.reverse .about-copy{order:2}

/* Sobre */
.about-copy h2{margin-bottom:20px}
.about-copy p{color:var(--muted);margin-bottom:16px;max-width:520px}
.section-dark .about-copy p{color:#B7BCC4}
.check{list-style:none;margin-top:26px;display:grid;gap:12px}
.check li{position:relative;padding-left:34px;font-weight:500;color:var(--text)}
.check li::before{content:"";position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:6px;background:var(--red);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/16px no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/16px no-repeat;
  background:var(--white);box-shadow:inset 0 0 0 22px var(--red)}
.about-visual{position:relative}
.about-photo{aspect-ratio:4/5;border-radius:var(--radius);background:url('/assets/hero.webp') center/cover;box-shadow:var(--shadow-lg);filter:contrast(1.02)}
.about-badge{position:absolute;left:-18px;bottom:-18px;background:var(--red);color:#fff;padding:18px 22px;border-radius:var(--radius-sm);box-shadow:var(--shadow);max-width:180px}
.about-badge b{font-family:"Archivo";font-size:2rem;font-weight:900;display:block;line-height:1}
.about-badge span{font-size:.78rem;opacity:.9}

/* Serviços cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--ink-2);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);padding:30px 26px;transition:transform .3s var(--ease),border-color .3s,background .3s}
.card:hover{transform:translateY(-6px);border-color:rgba(200,16,46,.55);background:var(--ink-3)}
.card-ico{width:54px;height:54px;display:grid;place-items:center;font-size:1.6rem;background:rgba(200,16,46,.16);border-radius:12px;margin-bottom:18px}
.card h3{color:#fff;margin-bottom:10px}
.card p{color:#AEB3BB;font-size:.96rem}

/* Atuação map */
.map-card{background:var(--stone);border-radius:var(--radius);padding:8px;box-shadow:var(--shadow);position:relative;overflow:hidden;min-height:280px;
  background-image:url('/assets/team.webp');background-size:180px;background-position:center}
.map-card::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(242,239,234,.4),rgba(242,239,234,.85))}
.map-inner{position:relative;height:100%;min-height:264px;display:flex;flex-direction:column;justify-content:flex-end;gap:14px;padding:26px}
.map-pin{font-size:2.2rem}
.map-text b{display:block;font-family:"Archivo";font-size:1.3rem;color:var(--ink)}
.map-text span{display:block;color:var(--muted)}
.region-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.region-list span{background:var(--stone);border:1px solid var(--stone-line);color:var(--text);font-size:.88rem;font-weight:500;padding:6px 14px;border-radius:999px}

/* Diferenciais */
.diff-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.diff{background:var(--paper);border:1px solid var(--stone-line);border-radius:var(--radius);padding:28px 24px;transition:transform .3s var(--ease)}
.diff:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.diff b{font-family:"Archivo";font-size:1.5rem;font-weight:900;color:var(--red);display:block;margin-bottom:14px}
.diff h3{margin-bottom:8px}
.diff p{color:var(--muted);font-size:.94rem}

/* Contato */
.cta h2{margin-bottom:16px}
.contact-list{list-style:none;margin-top:28px;display:grid;gap:16px}
.contact-list li{color:#C9CDD4;font-size:.98rem;padding-left:0}
.contact-list span{display:block;font-family:"Archivo";font-weight:700;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--red-soft);margin-bottom:2px}
.contact-form{background:var(--ink-2);border:1px solid rgba(255,255,255,.09);border-radius:var(--radius);padding:30px;display:grid;gap:16px}
.contact-form label{display:grid;gap:7px;font-size:.85rem;font-weight:600;color:#C9CDD4}
.contact-form input,.contact-form textarea{background:var(--ink);border:1px solid rgba(255,255,255,.14);border-radius:10px;padding:12px 14px;color:#fff;font-family:inherit;font-size:.95rem;transition:border-color .2s}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--red)}
.contact-form textarea{resize:vertical}
.form-note{font-size:.76rem;color:var(--muted-light);margin-top:-4px}

/* Footer */
.site-footer{background:#08090B;color:#fff;padding-block:46px}
.footer-inner{display:grid;grid-template-columns:1fr auto;gap:26px;align-items:center}
.footer-brand{display:flex;align-items:center;gap:14px}
.footer-brand b{font-family:"Archivo";display:block;font-size:1.05rem}
.footer-brand span{font-size:.82rem;color:var(--muted-light)}
.footer-nav{display:flex;gap:22px}
.footer-nav a{color:#C9CDD4;font-size:.92rem;transition:color .2s}
.footer-nav a:hover{color:var(--red-soft)}
.footer-legal{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.1);padding-top:22px;font-size:.82rem;color:var(--muted-light)}

/* ---------- Chat assistente ---------- */
.chat-fab{position:fixed;right:22px;bottom:22px;z-index:60;display:flex;align-items:center;gap:10px;background:var(--red);color:#fff;border:0;border-radius:999px;padding:14px 20px 14px 16px;cursor:pointer;box-shadow:0 16px 34px -10px rgba(200,16,46,.7);font-family:"Archivo";font-weight:700;font-size:.92rem;transition:transform .25s var(--ease),background .25s}
.chat-fab:hover{transform:translateY(-3px);background:var(--red-dark)}
.chat-fab svg{flex:none}
.chat-fab.hide{transform:scale(.4);opacity:0;pointer-events:none}
@media(max-width:520px){.chat-fab-label{display:none}.chat-fab{padding:16px}}

.chat-panel{position:fixed;right:22px;bottom:22px;z-index:61;width:min(390px,calc(100vw - 32px));height:min(600px,calc(100vh - 40px));background:var(--paper);border-radius:18px;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;overflow:hidden;opacity:0;transform:translateY(20px) scale(.96);pointer-events:none;transition:opacity .3s var(--ease),transform .3s var(--ease);border:1px solid var(--stone-line)}
.chat-panel.open{opacity:1;transform:none;pointer-events:auto}
.chat-head{display:flex;align-items:center;justify-content:space-between;background:var(--ink);color:#fff;padding:14px 16px}
.chat-id{display:flex;align-items:center;gap:11px}
.chat-avatar{width:40px;height:40px;border-radius:10px;background:var(--red);display:grid;place-items:center;font-family:"Archivo";font-weight:900;font-size:.9rem}
.chat-id b{font-size:.98rem;display:block}
.chat-id small{font-size:.74rem;color:var(--muted-light)}
.chat-close{background:none;border:0;color:#fff;font-size:1.1rem;cursor:pointer;opacity:.7;padding:6px}
.chat-close:hover{opacity:1}
.chat-body{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:12px;background:linear-gradient(180deg,#fff,var(--paper))}
.msg{max-width:82%;padding:11px 15px;border-radius:15px;font-size:.93rem;line-height:1.5;white-space:pre-wrap;word-wrap:break-word}
.msg.bot{align-self:flex-start;background:#fff;border:1px solid var(--stone-line);border-bottom-left-radius:5px;color:var(--text)}
.msg.user{align-self:flex-end;background:var(--red);color:#fff;border-bottom-right-radius:5px}
.msg.typing{display:flex;gap:5px;align-items:center}
.msg.typing i{width:7px;height:7px;border-radius:50%;background:var(--muted-light);animation:blink 1.2s infinite both}
.msg.typing i:nth-child(2){animation-delay:.2s}.msg.typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}
.chat-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.chat-chip{background:#fff;border:1px solid var(--stone-line);border-radius:999px;padding:7px 13px;font-size:.82rem;cursor:pointer;color:var(--text);transition:.2s}
.chat-chip:hover{border-color:var(--red);color:var(--red)}
.chat-input{display:flex;gap:8px;padding:12px;border-top:1px solid var(--stone-line);background:#fff}
.chat-input input{flex:1;border:1px solid var(--stone-line);border-radius:999px;padding:11px 16px;font-family:inherit;font-size:.93rem}
.chat-input input:focus{outline:none;border-color:var(--red)}
.chat-input button{flex:none;width:44px;height:44px;border-radius:50%;border:0;background:var(--red);color:#fff;font-size:1rem;cursor:pointer;transition:background .2s,transform .2s}
.chat-input button:hover{background:var(--red-dark);transform:scale(1.05)}
.chat-input button:disabled{opacity:.5;cursor:not-allowed}

/* ---------- Responsivo ---------- */
@media(max-width:900px){
  .nav,.header-cta{display:none}
  .nav-toggle{display:flex}
  .nav.open{display:flex;position:absolute;top:74px;left:0;right:0;flex-direction:column;gap:0;background:var(--ink);padding:8px 24px 20px;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav.open a{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.07)}
  .grid-2{grid-template-columns:1fr;gap:40px}
  .grid-2.reverse .about-copy{order:0}
  .cards{grid-template-columns:repeat(2,1fr)}
  .diff-grid{grid-template-columns:repeat(2,1fr)}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:20px}
  .footer-inner{grid-template-columns:1fr}
  .about-badge{left:0}
}
@media(max-width:560px){
  .cards{grid-template-columns:1fr}
  .diff-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto;animation:none!important;transition:none!important}}