/* ==========================================================================
   Grupo MinerTec — style.css  (v2 · premium dark / datasheet de engenharia)
   HTML5 + CSS3 puro · sem frameworks
   ========================================================================== */

/* ---------- Tokens · High-Voltage Industrial ----------
   âmbar/cobre = assinatura · verde-fósforo = SÓ dados ao vivo
   superfícies grafite, off-white quente, cantos retos              */
:root {
    /* superfícies (nomes "navy" mantidos p/ compatibilidade) */
    --navy:        #161310;   /* ink quente p/ seções claras */
    --navy-900:    #0B0B0E;   /* base — quase-preto */
    --navy-800:    #16161A;   /* superfície grafite */
    --navy-700:    #1F1F25;

    /* assinatura âmbar/cobre (nomes "blue" mantidos → propaga em tudo) */
    --blue:        #F2860D;   /* âmbar/cobre — accent primário */
    --blue-300:    #FFB245;   /* âmbar claro p/ texto/realce */

    /* decorativos secundários = também âmbar (nomes "emerald" mantidos) */
    --emerald:     #F2860D;
    --emerald-300: #FFB245;

    /* verde-fósforo: RESERVADO p/ LED + ticker (dados ao vivo) */
    --signal:      #38E08B;
    --signal-300:  #7df0b7;

    --white:       #FBF8F2;   /* off-white quente (não branco puro) */
    --gray-50:     #E9E4DA;   /* concreto claro — seções claras */
    --gray-200:    #cfc8ba;
    --gray-400:    #8e877b;   /* mono labels no escuro */
    --gray-500:    #6f6a60;

    --line:        rgba(214,196,160,.12);   /* hairlines quentes no escuro */
    --line-strong: rgba(214,196,160,.22);
    --ink:         #ECE7DF;                  /* texto sobre escuro (quente) */
    --ink-dim:     #9a938a;

    --radius:      3px;          /* cantos quase retos = chapa */
    --radius-lg:   6px;
    --container:   1220px;
    --space:       clamp(46px, 5.5vw, 82px);

    --f-display: "Archivo", "Arial Narrow", system-ui, sans-serif;
    --f-cond:    "Archivo Narrow", "Archivo", system-ui, sans-serif;
    --f-mono:    "Spline Sans Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
    --f-body:    "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

    --z-header: 100;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
    margin: 0;
    font-family: var(--f-body);
    background: var(--navy-900);
    color: var(--ink);
    line-height: 1.65;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }

h1, h2, h3 {
    font-family: var(--f-display);
    font-weight: 700;
    line-height: 1.04;
    letter-spacing: -.02em;
    margin: 0 0 .4em;
    color: var(--white);
}
h1 {
    font-family: var(--f-cond);
    font-size: clamp(2.6rem, 7.4vw, 5rem);
    font-weight: 700;
    letter-spacing: -.015em;
    text-transform: uppercase;
}
h2 { font-size: clamp(1.9rem, 4.4vw, 3.05rem); font-weight: 800; letter-spacing: -.025em; }
h3 { font-size: 1.18rem; letter-spacing: -.01em; }
p  { margin: 0 0 1rem; }

/* ---------- Acessibilidade ---------- */
.skip-link { position: absolute; left: -999px; top: 0; z-index: 200; background: var(--blue); color: #fff; padding: 10px 16px; }
.skip-link:focus { left: 0; }
:focus-visible { outline: 2px solid var(--emerald); outline-offset: 3px; }

/* ---------- Utilidades ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.section { padding-block: var(--space); position: relative; }
.section--light { background: var(--gray-50); color: var(--navy); }
.section--light h2 { color: var(--navy); }

/* rótulos monospace técnicos */
.mono {
    font-family: var(--f-mono); font-size: .75rem; letter-spacing: .14em;
    text-transform: uppercase; color: var(--gray-400); font-weight: 500;
}
.kicker {
    display: inline-flex; align-items: center; gap: 11px;
    font-family: var(--f-mono); font-size: .74rem; letter-spacing: .22em;
    text-transform: uppercase; color: var(--blue-300); font-weight: 600;
    margin-bottom: 22px;
}
.kicker::before { content: ""; width: 7px; height: 7px; background: var(--blue); flex: none; box-shadow: 0 0 10px rgba(242,134,13,.7); }
.section--light .kicker { color: #9a4a00; }
.section--light .kicker::before { background: #9a4a00; box-shadow: none; }
.section--light .mono { color: var(--gray-500); }

/* status dot pulsante (LED) */
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--signal); position: relative; flex: none; }
.dot::after { content: ""; position: absolute; inset: 0; border-radius: 50%; box-shadow: 0 0 0 0 rgba(16,185,129,.55); animation: pulse 2.4s infinite; }
@keyframes pulse { 0%{box-shadow:0 0 0 0 rgba(16,185,129,.5)} 70%{box-shadow:0 0 0 10px rgba(16,185,129,0)} 100%{box-shadow:0 0 0 0 rgba(16,185,129,0)} }

/* brackets de registro (cantos) */
.bracket { position: relative; }
.bracket::before, .bracket::after {
    content: ""; position: absolute; width: 16px; height: 16px; pointer-events: none;
    border: 1.5px solid var(--emerald);
}
.bracket::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.bracket::after  { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

/* cabeçalho de seção */
.head { max-width: 760px; margin-bottom: clamp(26px, 3.4vw, 42px); }
.head .index { font-family: var(--f-mono); font-size: .8rem; color: var(--blue-300); letter-spacing: .1em; }
.section--light .head .index { color: var(--blue); }
.head p { color: var(--ink-dim); font-size: 1.08rem; margin: 14px 0 0; max-width: 60ch; }
.section--light .head p { color: var(--gray-500); }

/* ---------- Botões ---------- */
.btn {
    --bg: var(--blue); --fg: #fff;
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    font-family: var(--f-mono); font-size: .82rem; letter-spacing: .04em; font-weight: 500;
    text-transform: uppercase; cursor: pointer;
    padding: 15px 26px; border-radius: var(--radius); border: 1px solid transparent;
    background: var(--bg); color: var(--fg);
    transition: transform .18s ease, background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
}
.btn svg { width: 16px; height: 16px; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #1a0e00; font-weight: 600; box-shadow: 0 10px 30px rgba(242,134,13,.26); }
.btn-primary:hover { background: #ffa12a; box-shadow: 0 14px 38px rgba(242,134,13,.45); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--emerald); color: var(--emerald); }
.section--light .btn-ghost { color: var(--navy); border-color: var(--gray-200); }
.btn-block { width: 100%; }
.btn-sm { padding: 11px 18px; font-size: .76rem; }

/* ---------- Header ---------- */
.site-header {
    position: sticky; top: 0; z-index: var(--z-header);
    background: rgba(11,11,14,.62); backdrop-filter: saturate(150%) blur(14px);
    border-bottom: 1px solid transparent; transition: border-color .25s, background .25s;
}
.site-header.is-scrolled { background: rgba(11,11,14,.93); border-color: var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }

.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand img { width: 34px; height: 34px; }
.brand-name { font-family: var(--f-display); font-weight: 700; font-size: 1.12rem; color: #fff; letter-spacing: -.02em; }
.brand-name strong { color: var(--blue-300); font-weight: 700; }

.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a { font-family: var(--f-mono); font-size: .8rem; letter-spacing: .06em; color: var(--ink-dim); text-transform: uppercase; transition: color .2s; }
.main-nav a:hover { color: #fff; }
.main-nav .btn { color: #1a0e00; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: .25s; }

/* ==========================================================================
   TICKER DE COTAÇÕES (ao vivo)
   ========================================================================== */
.ticker {
    display: flex; align-items: stretch;
    background: var(--navy-800); border-bottom: 1px solid var(--line);
    overflow: hidden; font-family: var(--f-mono);
}
.ticker-label {
    display: inline-flex; align-items: center; gap: 9px; flex: none;
    padding: 0 18px; background: var(--navy-900); border-right: 1px solid var(--line);
    color: var(--gray-400); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase;
}
.ticker-viewport { position: relative; flex: 1; overflow: hidden; }
/* máscara de borda (fade nas laterais) */
.ticker-viewport::before, .ticker-viewport::after {
    content: ""; position: absolute; top: 0; bottom: 0; width: 48px; z-index: 2; pointer-events: none;
}
.ticker-viewport::before { left: 0;  background: linear-gradient(90deg, var(--navy-800), transparent); }
.ticker-viewport::after  { right: 0; background: linear-gradient(270deg, var(--navy-800), transparent); }

.ticker-track {
    display: inline-flex; align-items: center; white-space: nowrap;
    will-change: transform; animation: ticker 48s linear infinite;
}
.ticker:hover .ticker-track { animation-play-state: paused; }
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.tk {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 11px 26px; border-right: 1px solid var(--line); font-size: .8rem;
}
.tk-sym   { color: #fff; font-weight: 500; letter-spacing: .04em; }
.tk-price { color: var(--ink-dim); }
.tk-chg   { font-weight: 500; }
.tk-chg.up   { color: var(--signal); }
.tk-chg.down { color: #f87171; }

@media (max-width: 620px) {
    .ticker-label { padding: 0 12px; font-size: .64rem; }
    .tk { padding: 10px 18px; gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
    .ticker-track { animation: none; }
    .ticker-viewport { overflow-x: auto; }
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero { position: relative; overflow: hidden; padding-block: clamp(54px, 7vw, 96px); background: #0b0b0e; }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
/* foto com duotone quente + alto contraste (presente, não lavada) */
.hero-bg img {
    width: 100%; height: 100%; object-fit: cover; opacity: .46;
    filter: grayscale(.32) contrast(1.16) brightness(.92) sepia(.28) saturate(1.3) hue-rotate(-14deg);
}
.hero-bg::after {
    content: ""; position: absolute; inset: 0;
    background:
      linear-gradient(180deg, rgba(11,11,14,.55) 0%, rgba(11,11,14,.84) 62%, var(--navy-900) 100%),
      radial-gradient(120% 95% at 88% -5%, rgba(242,134,13,.28), transparent 55%),
      radial-gradient(90% 70% at 0% 100%, rgba(242,134,13,.08), transparent 60%);
}
/* chapa metálica escovada + brilho de topo + malha técnica sutil */
.hero::before {
    content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
    background-image:
      repeating-linear-gradient(90deg, rgba(255,247,235,.022) 0 1px, transparent 1px 3px),
      linear-gradient(180deg, rgba(255,247,235,.05), transparent 24%),
      linear-gradient(rgba(214,196,160,.045) 1px, transparent 1px),
      linear-gradient(90deg, rgba(214,196,160,.045) 1px, transparent 1px);
    background-size: 3px 100%, 100% 100%, 54px 54px, 54px 54px;
    -webkit-mask: radial-gradient(125% 95% at 50% 0%, #000 38%, transparent 92%);
            mask: radial-gradient(125% 95% at 50% 0%, #000 38%, transparent 92%);
}
/* selo de identidade — "barra de barramento" no topo do hero */
.hero .container::before {
    content: ""; display: block; height: 3px; width: 64px; margin-bottom: 26px;
    background: linear-gradient(90deg, var(--blue), transparent);
}
.hero .container { position: relative; z-index: 2; }
.hero-top { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: clamp(22px, 3.5vw, 40px); flex-wrap: wrap; }
.hero-top .mono { color: var(--gray-400); }
.hero-status { display: inline-flex; align-items: center; gap: 10px; }

.hero h1 { max-width: 16ch; margin-bottom: 20px; }
.hero h1 .accent { color: var(--blue-300); }
.hero-lead { font-size: 1.18rem; color: var(--ink-dim); max-width: 52ch; margin-bottom: 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }

/* marquee de moedas — impressão de amplitude (loop contínuo) */
.coins { display: flex; flex-direction: column; align-items: stretch; gap: 14px; padding-top: 22px; border-top: 1px solid var(--line); }
.coins .mono { color: var(--gray-500); }
.coins-marquee {
    position: relative; width: 100%; overflow: hidden;
    -webkit-mask: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
            mask: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
}
.coins-track {
    display: inline-flex; align-items: center; width: max-content; white-space: nowrap;
    will-change: transform; animation: coins-marquee 46s linear infinite reverse;
}
.coins-marquee:hover .coins-track { animation-play-state: paused; }
@keyframes coins-marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.coin { display: inline-flex; padding: 4px 15px; }
.coin img { width: 30px; height: 30px; opacity: .9; transition: opacity .2s, transform .2s, filter .2s; }
.coin:hover img { opacity: 1; transform: translateY(-3px) scale(1.1); filter: drop-shadow(0 5px 12px rgba(0,0,0,.5)); }

@media (prefers-reduced-motion: reduce) {
    .coins-track { animation: none; }
    .coins-marquee { overflow-x: auto; }
}

/* ---------- Faixa de princípios ---------- */
.value-bar { background: var(--navy-800); border-block: 1px solid var(--line); }
.value-grid { display: grid; grid-template-columns: 1fr; }
.value { padding: 26px 0; }
.value-num { display: block; color: var(--blue-300); margin-bottom: 14px; }
.value h3 { font-size: 1.3rem; margin-bottom: 8px; }
.value p { color: var(--ink-dim); margin: 0; font-size: .98rem; max-width: 42ch; }

/* ==========================================================================
   ABOUT
   ========================================================================== */
.about-grid { display: grid; gap: 36px; align-items: center; }
.about-media { position: relative; }
.about-media img { border-radius: var(--radius-lg); border: 1px solid var(--line); }
.about-tag {
    position: absolute; left: -1px; bottom: 22px; background: var(--navy-900);
    border: 1px solid var(--emerald); padding: 12px 18px;
    font-family: var(--f-mono); font-size: .74rem; letter-spacing: .08em; color: var(--emerald-300);
}
.about-copy p { color: var(--ink-dim); }
.feature-list { display: grid; gap: 2px; margin-top: 28px; border-top: 1px solid var(--line); }
.feature-list li { display: flex; gap: 16px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--line); }
.feature-list .fi-num { font-family: var(--f-mono); color: var(--blue-300); font-size: .8rem; }
.feature-list strong { color: #fff; font-weight: 600; }
.feature-list span { color: var(--ink-dim); }

/* ==========================================================================
   SERVICES — ledger numerado
   ========================================================================== */
.ledger { border-top: 1px solid var(--line); }
.ledger-row {
    display: grid; grid-template-columns: auto 1fr auto; gap: 20px; align-items: center;
    padding: 19px 8px; border-bottom: 1px solid var(--line);
    transition: background .25s, padding .25s; cursor: default; position: relative;
}
.ledger-row::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--blue); transform: scaleY(0); transform-origin: top; transition: transform .25s; }
.ledger-row:hover { background: var(--navy-800); padding-left: 22px; }
.ledger-row:hover::before { transform: scaleY(1); }
.ledger-num { font-family: var(--f-mono); font-size: .85rem; color: var(--blue-300); }
.ledger-main { display: flex; align-items: center; gap: 18px; }
.ledger-ico { width: 42px; height: 42px; flex: none; display: grid; place-items: center; background: rgba(242,134,13,.12); border: 1px solid var(--line); border-radius: var(--radius); }
.ledger-ico img { width: 22px; height: 22px; }
.ledger-row h3 { margin: 0; font-size: 1.18rem; }
.ledger-row p { margin: 4px 0 0; color: var(--ink-dim); font-size: .96rem; max-width: 62ch; }
.ledger-tag { font-family: var(--f-mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--gray-500); white-space: nowrap; }

/* ==========================================================================
   EQUIPMENT — cards foto-driven (apenas foto + marca + modelo)
   ========================================================================== */
.equip-grid { display: grid; gap: 24px; grid-template-columns: 1fr; }
.equip-card {
    position: relative; margin: 0; aspect-ratio: 4/5; overflow: hidden;
    border: 1px solid var(--gray-200); border-radius: var(--radius-lg); background: #15120e;
    transition: transform .2s, box-shadow .2s, border-color .2s;
}
.equip-card:hover { transform: translateY(-5px); box-shadow: 0 22px 50px rgba(40,24,4,.22); border-color: #d7a86a; }
.equip-card img { width: 100%; height: 100%; object-fit: cover; filter: brightness(1.05) saturate(1.04); transition: transform .5s; }
.equip-card:hover img { transform: scale(1.05); }
.equip-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 40%, rgba(8,5,2,.8)); }
.equip-brand {
    position: absolute; top: 12px; left: 12px; z-index: 2;
    font-family: var(--f-mono); font-size: .64rem; letter-spacing: .12em; text-transform: uppercase;
    color: #fff; background: rgba(20,16,10,.74); border: 1px solid rgba(255,224,180,.16);
    padding: 6px 10px; border-radius: var(--radius); backdrop-filter: blur(4px);
}
.equip-cap {
    position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; padding: 18px 18px 20px;
    font-family: var(--f-display); font-weight: 600; font-size: 1.05rem; color: #fff; line-height: 1.2;
}

/* ==========================================================================
   PROCESS — timeline numerada (credibilidade)
   ========================================================================== */
.process-grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.step { background: var(--navy-900); padding: 24px 22px; position: relative; }
.step .snum { font-family: var(--f-cond); font-weight: 700; font-size: 2.7rem; color: rgba(255,178,69,.22); line-height: 1; }
.step h3 { margin: 12px 0 8px; font-size: 1.1rem; }
.step p { color: var(--ink-dim); font-size: .92rem; margin: 0; }

/* ==========================================================================
   WHY — bento
   ========================================================================== */
.bento { display: grid; gap: 18px; grid-template-columns: 1fr; }
.bcell { background: var(--navy-800); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; transition: border-color .2s, transform .2s; }
.bcell:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.bcell-ico { width: 46px; height: 46px; display: grid; place-items: center; border-radius: var(--radius); background: rgba(242,134,13,.12); margin-bottom: 18px; }
.bcell-ico img { width: 24px; height: 24px; }
.bcell h3 { font-size: 1.08rem; }
.bcell p { color: var(--ink-dim); font-size: .94rem; margin: 0; }
.bcell--feature { background: radial-gradient(120% 100% at 100% 0%, rgba(242,134,13,.16), transparent 55%), linear-gradient(135deg, #1c1813, #121013); border-color: rgba(242,134,13,.38); }
.big-statement { font-family: var(--f-display); font-weight: 600; font-size: clamp(1.7rem,3vw,2.2rem); color: #fff; line-height: 1.1; letter-spacing: -.01em; margin: 0 0 22px; }
.big-statement span { color: var(--emerald); }

/* ==========================================================================
   PROJECTS — galeria com fotos reais
   ========================================================================== */
.proj-grid { display: grid; gap: 20px; grid-template-columns: 1fr; }
.proj { position: relative; border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 4/3; border: 1px solid var(--line); }
.proj img { width: 100%; height: 100%; object-fit: cover; filter: brightness(1.06) saturate(1.05); transition: transform .5s; }
.proj:hover img { transform: scale(1.06); }
.proj::after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 30%, rgba(8,5,2,.82)); }
.proj figcaption { position: absolute; inset: auto 0 0 0; padding: 20px 22px; z-index: 2; }
.proj .pnum { font-family: var(--f-mono); font-size: .7rem; letter-spacing: .1em; color: var(--emerald-300); }
.proj strong { display: block; color: #fff; font-family: var(--f-display); font-weight: 600; font-size: 1.1rem; margin-top: 4px; }
.proj span.desc { color: var(--gray-400); font-size: .85rem; }

/* ==========================================================================
   VISÃO / CEO  (statement editorial, minimalista)
   ========================================================================== */
.ceo .container { max-width: 980px; }
.ceo-quote {
    font-family: var(--f-display); font-weight: 500;
    font-size: clamp(1.7rem, 4.2vw, 3rem); line-height: 1.18; letter-spacing: -.02em;
    color: #fff; margin: 12px 0 26px; text-indent: -.04em;
}
.ceo-quote span { color: var(--blue-300); }
.ceo-sign { display: flex; align-items: center; gap: 16px; }
.ceo-avatar { width: 52px; height: 52px; border-radius: 4px; flex: none; background: linear-gradient(135deg, #ffb245, #b8590a); display: grid; place-items: center; font-family: var(--f-cond); font-weight: 700; font-size: 1.4rem; color: #1a0e00; }
.ceo-sign b { display: block; color: #fff; font-size: 1rem; }
.ceo-sign .mono { font-size: .74rem; }

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-grid { display: grid; gap: 36px; align-items: start; }
.contact-intro p { color: var(--ink-dim); }
.contact-list { margin-top: 30px; border-top: 1px solid var(--line); }
.contact-list li { display: flex; justify-content: space-between; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); align-items: center; }
.contact-list .k { font-family: var(--f-mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--gray-400); }
.contact-list a, .contact-list span.v { color: #fff; font-weight: 500; }
.contact-list a:hover { color: var(--emerald); }

.form-panel { background: var(--navy-800); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(24px, 4vw, 38px); }
.field { margin-bottom: 18px; }
.field-row { display: grid; gap: 18px; grid-template-columns: 1fr; }
.field label { display: block; font-family: var(--f-mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--gray-400); margin-bottom: 8px; }
.field label span { color: var(--emerald); }
.field input, .field select, .field textarea {
    width: 100%; font: inherit; color: #fff;
    padding: 13px 14px; border: 1px solid var(--line-strong); border-radius: var(--radius);
    background: var(--navy-900); transition: border-color .2s, box-shadow .2s;
}
.field input::placeholder, .field textarea::placeholder { color: #4b5a73; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(242,134,13,.24); }
.field textarea { resize: vertical; min-height: 120px; }
.field select { appearance: none; }
.field .has-error { border-color: #f87171; }
.field .err { display: block; color: #fca5a5; font-family: var(--f-mono); font-size: .72rem; margin-top: 6px; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.alert { padding: 14px 16px; border-radius: var(--radius); margin-bottom: 18px; font-size: .94rem; border: 1px solid; }
.alert-success { background: rgba(56,224,139,.1); border-color: var(--signal); color: var(--signal-300); }
.alert-error   { background: rgba(248,113,113,.1); border-color: #f87171; color: #fca5a5; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer { background: var(--navy-900); border-top: 1px solid var(--line); padding-top: clamp(40px, 5vw, 60px); }
.footer-grid { display: grid; gap: 32px; grid-template-columns: 1fr; padding-bottom: 32px; }
.footer-brand p { color: var(--ink-dim); font-size: .92rem; max-width: 320px; margin-top: 14px; }
.footer-col h4 { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--gray-400); margin: 0 0 16px; }
.footer-col ul { display: grid; gap: 11px; }
.footer-col a { color: var(--ink-dim); font-size: .92rem; transition: color .2s; }
.footer-col a:hover { color: var(--emerald); }
.socials { display: flex; gap: 10px; }
.socials a { width: 40px; height: 40px; border-radius: var(--radius); background: var(--navy-800); border: 1px solid var(--line); color: var(--ink-dim); display: grid; place-items: center; transition: .2s; }
.socials a:hover { background: var(--emerald); color: var(--navy-900); border-color: var(--emerald); transform: translateY(-2px); }
.socials img { width: 20px; height: 20px; }
.footer-bottom { border-top: 1px solid var(--line); padding-block: 22px; display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }
.footer-bottom p { margin: 0; font-family: var(--f-mono); font-size: .72rem; color: var(--gray-500); letter-spacing: .04em; }

/* The "giant wordmark" */
.wordmark { font-family: var(--f-cond); font-weight: 700; text-transform: uppercase; letter-spacing: -.02em; line-height: .9; color: transparent; -webkit-text-stroke: 1px var(--line-strong); font-size: clamp(2.6rem, 11vw, 8rem); text-align: center; padding: 4px 0 16px; user-select: none; }

/* ==========================================================================
   RESPONSIVO
   ========================================================================== */
@media (min-width: 620px) {
    .value-grid { grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); }
    .value-grid .value { background: var(--navy-800); padding: 30px 26px; }
    .equip-grid { grid-template-columns: repeat(2, 1fr); }
    .proj-grid  { grid-template-columns: repeat(2, 1fr); }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .field-row  { grid-template-columns: 1fr 1fr; }
    .bento      { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
    .about-grid   { grid-template-columns: 1fr 1.05fr; }
    .contact-grid { grid-template-columns: .85fr 1.15fr; }
    .equip-grid   { grid-template-columns: repeat(4, 1fr); }
    .process-grid { grid-template-columns: repeat(4, 1fr); }
    .footer-grid  { grid-template-columns: 2fr 1fr 1fr 1.2fr; }
    .bento        { grid-template-columns: repeat(3, 1fr); }
    .bento .bcell--feature { grid-column: span 1; grid-row: span 2; display: flex; flex-direction: column; justify-content: flex-end; }
    .proj-grid    { grid-template-columns: repeat(3, 1fr); }
    .proj--wide   { grid-column: span 2; aspect-ratio: 16/9; }
}

/* nav mobile */
@media (max-width: 880px) {
    .nav-toggle { display: flex; }
    .main-nav {
        position: fixed; inset: 72px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
        background: var(--navy-900); border-bottom: 1px solid var(--line); padding: 8px 24px 22px;
        transform: translateY(-130%); opacity: 0; pointer-events: none; transition: transform .3s, opacity .3s;
    }
    .main-nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .main-nav a { padding: 15px 2px; border-bottom: 1px solid var(--line); }
    .main-nav .btn { margin-top: 14px; }
    .ledger-row { grid-template-columns: auto 1fr; }
    .ledger-tag { display: none; }
}

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