/* PDI Industrial — Design system (HTML version) */
:root {
    --paper: #f7f8f9;
    --ink: #1a2233;
    --ink-soft: #3a4456;
    --muted: #6a7384;
    --border: rgba(26, 34, 51, 0.1);
    --border-strong: rgba(26, 34, 51, 0.18);
    --card: #ffffff;
    --rust: #c2410c;
    --rust-hover: #9a3412;
    --paper-foreground: #fbfbf9;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--paper);
    color: var(--ink);
    font-feature-settings: "cv02", "cv03", "cv04", "ss01";
    -webkit-font-smoothing: antialiased;
    line-height: 1.55;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--rust); }

.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }
.eyebrow {
    display: block; margin-bottom: 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; text-transform: uppercase;
    letter-spacing: 0.3em; color: var(--rust);
}

/* Nav */
.site-nav {
    position: sticky; top: 0; z-index: 50;
    background: rgba(247, 248, 249, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 64px;
}
.brand { display: inline-flex; align-items: center; gap: 8px; }
.brand-mark {
    display: grid; place-items: center;
    width: 28px; height: 28px;
    background: var(--ink); color: var(--paper-foreground);
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px; letter-spacing: -0.04em;
}
.brand-mark.small { width: 24px; height: 24px; font-size: 8px; }
.brand-name {
    font-size: 20px; font-weight: 700;
    letter-spacing: -0.04em; color: var(--ink);
}
.nav-links {
    display: flex; align-items: center; gap: 32px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; text-transform: uppercase;
    letter-spacing: 0.18em; color: var(--muted);
}
.nav-links a:hover { color: var(--rust); }
.nav-links a.active { color: var(--ink); }
.nav-cta {
    background: var(--ink); color: var(--paper-foreground) !important;
    padding: 8px 16px; transition: background .25s ease;
}
.nav-cta:hover { background: var(--rust); }
.nav-cta.active { background: var(--rust); }
.nav-toggle {
    display: none; background: none; border: none; cursor: pointer;
    flex-direction: column; gap: 4px; padding: 8px;
}
.nav-toggle span {
    width: 22px; height: 1.5px; background: var(--ink);
    transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

@media (max-width: 860px) {
    .nav-toggle { display: inline-flex; }
    .nav-links {
        position: absolute; top: 64px; left: 0; right: 0;
        flex-direction: column; gap: 0; align-items: stretch;
        background: var(--paper); border-bottom: 1px solid var(--border);
        padding: 16px 24px; display: none;
    }
    .nav-links.open { display: flex; }
    .nav-links a { padding: 14px 0; }
    .nav-cta { text-align: center; padding: 14px; margin-top: 8px; }
}

/* Sections */
section { padding: 96px 0; }
@media (max-width: 768px) { section { padding: 64px 0; } }

.section-border-y { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-dark { background: var(--ink); color: var(--paper-foreground); }
.section-card-bg { background: var(--card); }

/* Typography */
h1, h2, h3, h4, h5 { color: var(--ink); letter-spacing: -0.02em; line-height: 1.1; }
.h-hero {
    font-size: clamp(40px, 7vw, 96px);
    font-weight: 700; line-height: 0.98;
    letter-spacing: -0.03em; max-width: 1000px;
}
.h-hero em { font-style: italic; color: rgba(106, 115, 132, 0.45); font-weight: 700; }
.h-page {
    font-size: clamp(36px, 5.5vw, 64px);
    font-weight: 700; letter-spacing: -0.025em;
    max-width: 900px; line-height: 1.05;
}
.h-section {
    font-size: clamp(32px, 4vw, 52px);
    font-weight: 700; letter-spacing: -0.02em;
}
.lede {
    font-size: 18px; color: var(--muted);
    max-width: 640px; margin-top: 28px;
    line-height: 1.65;
}

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 12px;
    padding: 16px 32px; font-family: 'JetBrains Mono', monospace;
    font-size: 12px; text-transform: uppercase; letter-spacing: 0.18em;
    cursor: pointer; border: none; transition: all .25s ease;
}
.btn-primary { background: var(--ink); color: var(--paper-foreground); }
.btn-primary:hover { background: var(--rust); color: var(--paper-foreground); }
.btn-outline {
    background: transparent; color: var(--ink);
    border: 1px solid var(--border-strong);
}
.btn-outline:hover { border-color: var(--ink); color: var(--ink); }
.btn .arrow { transition: transform .25s ease; }
.btn:hover .arrow { transform: translateX(4px); }
.text-link {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px; text-transform: uppercase; letter-spacing: 0.18em;
    color: var(--ink);
}
.text-link:hover { color: var(--rust); }

/* Hero */
.hero { padding: 80px 0 112px; overflow: hidden; }
.hero-inner { display: flex; flex-direction: column; gap: 48px; }
.hero-text { max-width: 1000px; animation: fadeInUp .8s cubic-bezier(0.16, 1, 0.3, 1) both; }
.hero p { max-width: 560px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 40px; }
.hero-image-wrap {
    position: relative; animation: fadeIn 1s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.hero-image {
    width: 100%; aspect-ratio: 21/9; object-fit: cover;
    filter: grayscale(100%); transition: filter .7s ease;
    outline: 1px solid var(--border); outline-offset: -1px;
}
.hero-image:hover { filter: grayscale(0); }
.hero-badge {
    position: absolute; bottom: -24px; right: -24px;
    max-width: 320px; background: var(--rust); color: var(--paper-foreground);
    padding: 32px;
}
.hero-badge span { font-family: 'JetBrains Mono', monospace; font-size: 10px; text-transform: uppercase; display: block; margin-bottom: 16px; }
.hero-badge p { font-size: 14px; font-weight: 500; line-height: 1.5; }
@media (max-width: 1024px) { .hero-badge { display: none; } }

/* Quem somos */
.quem-grid {
    display: grid; grid-template-columns: 5fr 1fr 6fr;
    align-items: end; gap: 48px;
}
@media (max-width: 860px) {
    .quem-grid { grid-template-columns: 1fr; gap: 32px; }
    .quem-grid > .spacer { display: none; }
}
.quem-lead {
    font-size: 28px; line-height: 1.3;
    color: var(--ink); font-weight: 500;
    letter-spacing: -0.015em;
}

/* Diferenciais */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
@media (max-width: 860px) { .feature-grid { grid-template-columns: 1fr; } }
.feature { border-top: 1px solid var(--border); padding-top: 24px; }
.feature-icon { width: 24px; height: 24px; color: var(--rust); margin-bottom: 20px; stroke-width: 1.5; }
.feature h3 { font-size: 20px; font-weight: 500; margin-bottom: 12px; }
.feature p { font-size: 14px; color: var(--muted); line-height: 1.65; }

/* Timeline */
.timeline {
    display: grid; grid-template-columns: repeat(4, 1fr);
    column-gap: 48px; row-gap: 56px;
}
@media (max-width: 1024px) { .timeline { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .timeline { grid-template-columns: 1fr; } }
.timeline-step {
    position: relative; border-top: 1px solid var(--border);
    padding-top: 24px; transition: all .3s ease;
}
.timeline-step::before {
    content: ""; position: absolute; top: -1px; left: 0;
    height: 1px; width: 48px; background: var(--rust);
    transition: width .3s ease;
}
.timeline-step:hover::before { width: 100%; }
.timeline-step-index {
    font-family: 'JetBrains Mono', monospace;
    font-size: 36px; color: var(--border-strong);
    margin-bottom: 20px; transition: color .3s ease;
}
.timeline-step:hover .timeline-step-index { color: var(--rust); }
.timeline-step h3 { font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: -0.01em; margin-bottom: 12px; }
.timeline-step p { font-size: 14px; color: var(--muted); line-height: 1.65; }

/* Setores grid (Home dark) */
.section-dark .eyebrow { color: var(--rust); }
.section-dark h2 { color: var(--paper-foreground); }
.setores-head {
    display: flex; flex-wrap: wrap; gap: 32px;
    justify-content: space-between; align-items: flex-end;
    margin-bottom: 64px;
}
.setores-head p { max-width: 280px; font-size: 14px; color: rgba(251, 251, 249, 0.55); }
.setores-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
}
@media (max-width: 900px) { .setores-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .setores-grid { grid-template-columns: 1fr; } }
.setor-card { position: relative; aspect-ratio: 1/1; overflow: hidden; display: block; }
.setor-card img {
    width: 100%; height: 100%; object-fit: cover;
    opacity: 0.6; filter: grayscale(100%);
    transition: all .7s ease;
}
.setor-card:hover img { opacity: 1; filter: grayscale(0); transform: scale(1.05); }
.setor-card .overlay {
    position: absolute; inset: 0; padding: 32px;
    background: linear-gradient(to top, var(--ink), rgba(26, 34, 51, 0.4) 50%, transparent);
    display: flex; flex-direction: column; justify-content: flex-end;
    color: var(--paper-foreground);
}
.setor-card .idx { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--rust); margin-bottom: 8px; }
.setor-card h3 { font-size: 20px; font-weight: 700; color: var(--paper-foreground); }
.setor-card .summary { margin-top: 8px; font-size: 14px; color: rgba(251, 251, 249, 0.65); max-width: 320px; }

/* Soluções grid */
.solucoes-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
    background: var(--border); border: 1px solid var(--border);
}
@media (max-width: 900px) { .solucoes-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .solucoes-grid { grid-template-columns: 1fr; } }
.solucao { background: var(--card); padding: 40px; }
.solucao .idx {
    display: block; font-family: 'JetBrains Mono', monospace;
    font-size: 36px; color: var(--border-strong);
    margin-bottom: 24px; transition: color .3s ease;
}
.solucao:hover .idx { color: var(--rust); }
.solucao h3 { font-size: 18px; font-weight: 500; margin-bottom: 16px; }
.solucao p { font-size: 14px; color: var(--muted); line-height: 1.65; }

/* CTA */
.cta-block {
    background: var(--card); border: 1px solid var(--border);
    padding: 96px 48px; text-align: center;
    display: flex; flex-direction: column; align-items: center;
}
@media (max-width: 768px) { .cta-block { padding: 64px 24px; } }
.cta-block h2 { font-size: clamp(32px, 5vw, 60px); font-weight: 700; letter-spacing: -0.025em; margin-bottom: 48px; }
.cta-block .eyebrow { margin-bottom: 32px; }

/* Sobre */
.full-img {
    width: 100%; aspect-ratio: 21/9; object-fit: cover;
    filter: grayscale(100%);
}
.two-col {
    display: grid; grid-template-columns: 1fr 1fr; gap: 64px;
}
@media (max-width: 860px) { .two-col { grid-template-columns: 1fr; gap: 40px; } }
.compromisso-list { list-style: none; display: flex; flex-direction: column; gap: 20px; }
.compromisso-list li {
    display: flex; gap: 16px; border-top: 1px solid var(--border); padding-top: 20px;
    line-height: 1.65; color: var(--ink);
}
.compromisso-list .dash { font-family: 'JetBrains Mono', monospace; color: var(--rust); }
.presence-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
    background: var(--border); border: 1px solid var(--border);
}
@media (max-width: 768px) { .presence-grid { grid-template-columns: 1fr; } }
.presence-card { background: var(--card); padding: 32px; }
.presence-card .idx { display: block; font-family: 'JetBrains Mono', monospace; font-size: 36px; color: var(--border-strong); margin-bottom: 24px; }
.presence-card h3 { font-size: 20px; font-weight: 500; margin-bottom: 12px; }
.presence-card p { font-size: 14px; color: var(--muted); line-height: 1.65; }

/* Setores page */
.setor-row {
    border-bottom: 1px solid var(--border);
    scroll-margin-top: 80px;
}
.setor-row .row-inner {
    display: grid; grid-template-columns: 1fr 1fr; align-items: stretch;
}
@media (max-width: 860px) { .setor-row .row-inner { grid-template-columns: 1fr; } }
.setor-row.reverse .text { order: 2; }
.setor-row.reverse .image { order: 1; }
@media (max-width: 860px) { .setor-row.reverse .text, .setor-row.reverse .image { order: initial; } }
.setor-row .text { padding: 64px 64px 64px 0; display: flex; flex-direction: column; justify-content: center; }
.setor-row.reverse .text { padding: 64px 0 64px 64px; }
@media (max-width: 860px) { .setor-row .text, .setor-row.reverse .text { padding: 48px 0; } }
.setor-row .text .big-idx { font-family: 'JetBrains Mono', monospace; font-size: 56px; color: var(--border-strong); margin-bottom: 24px; }
.setor-row .text h2 { font-size: clamp(28px, 3.5vw, 40px); font-weight: 700; margin-bottom: 20px; }
.setor-row .text .summary { font-size: 18px; color: var(--ink); margin-bottom: 16px; line-height: 1.55; }
.setor-row .text .detail { font-size: 15px; color: var(--muted); max-width: 480px; line-height: 1.65; }
.setor-row .image { position: relative; min-height: 480px; overflow: hidden; }
@media (max-width: 860px) { .setor-row .image { min-height: 320px; } }
.setor-row .image img {
    position: absolute; inset: 0; width: 100%; height: 100%;
    object-fit: cover; filter: grayscale(100%); transition: filter .7s ease;
}
.setor-row .image:hover img { filter: grayscale(0); }

/* Inspection */
.inspection-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
@media (max-width: 860px) { .inspection-grid { grid-template-columns: 1fr; } }
.inspection-grid img { aspect-ratio: 4/3; object-fit: cover; filter: grayscale(100%); transition: filter .7s ease; }
.inspection-grid img:hover { filter: grayscale(0); }

/* Missões etapas */
.etapas-grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    column-gap: 48px; row-gap: 56px;
}
@media (max-width: 900px) { .etapas-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .etapas-grid { grid-template-columns: 1fr; } }
.etapa { border-top: 1px solid var(--border); padding-top: 24px; }
.etapa-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.etapa-head .icon { color: var(--rust); width: 24px; height: 24px; }
.etapa-head .idx { font-family: 'JetBrains Mono', monospace; font-size: 14px; color: var(--border-strong); }
.etapa h3 { font-size: 14px; font-weight: 700; text-transform: uppercase; margin-bottom: 12px; }
.etapa p { font-size: 14px; color: var(--muted); line-height: 1.65; }

/* Contato */
.contato-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 64px; }
@media (max-width: 860px) { .contato-grid { grid-template-columns: 1fr; gap: 40px; } }
.info-block { margin-top: 48px; display: flex; flex-direction: column; gap: 24px; }
.info-item { display: flex; gap: 16px; border-top: 1px solid var(--border); padding-top: 24px; align-items: flex-start; }
.info-item .icon { color: var(--rust); width: 20px; height: 20px; margin-top: 2px; flex-shrink: 0; }
.info-item h4 { font-family: 'JetBrains Mono', monospace; font-size: 10px; text-transform: uppercase; letter-spacing: 0.2em; color: var(--muted); margin-bottom: 4px; font-weight: 400; }
.info-item p, .info-item a { color: var(--ink); font-size: 15px; }

.contact-form {
    background: var(--card); border: 1px solid var(--border);
    padding: 40px;
}
@media (max-width: 560px) { .contact-form { padding: 28px; } }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 24px; }
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
.form-group label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px; text-transform: uppercase; letter-spacing: 0.2em;
    color: var(--muted);
}
.form-group input,
.form-group select,
.form-group textarea {
    font-family: inherit; font-size: 14px;
    padding: 14px 16px;
    border: 1px solid var(--border-strong);
    background: var(--paper); color: var(--ink);
    outline: none; transition: border-color .25s ease;
    border-radius: 0;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--rust); }
.form-group textarea { resize: vertical; min-height: 140px; }
.contact-form button { width: 100%; justify-content: center; }

.alert {
    padding: 16px 20px; margin-bottom: 24px;
    font-size: 14px; border-left: 3px solid;
}
.alert-success { background: rgba(34, 197, 94, 0.08); border-color: #16a34a; color: #166534; }
.alert-error   { background: rgba(220, 38, 38, 0.08); border-color: #dc2626; color: #991b1b; }

/* Footer */
.site-footer {
    border-top: 1px solid var(--border); background: var(--paper);
    padding: 64px 0;
}
.footer-grid {
    display: grid; grid-template-columns: 5fr 1fr 3fr 3fr; gap: 48px;
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr; gap: 32px; } }
.footer-brand p { margin-top: 20px; font-size: 14px; color: var(--muted); max-width: 380px; line-height: 1.65; }
.site-footer h5 { font-family: 'JetBrains Mono', monospace; font-size: 10px; text-transform: uppercase; letter-spacing: 0.2em; color: var(--muted); margin-bottom: 20px; font-weight: 400; }
.site-footer ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.site-footer ul a, .site-footer ul li { font-size: 14px; }
.site-footer .muted { color: var(--muted); }
.footer-bottom {
    margin-top: 64px; padding-top: 32px;
    border-top: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center; gap: 24px;
    flex-wrap: wrap;
}
.footer-bottom .mono { font-size: 10px; text-transform: uppercase; letter-spacing: 0.18em; color: var(--muted); }
.status { display: inline-flex; align-items: center; gap: 12px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--rust); }

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; } to { opacity: 1; }
}

/* Utility */
.text-rust { color: var(--rust); }
.mt-10 { margin-top: 40px; }
.mt-6  { margin-top: 24px; }
.mb-16 { margin-bottom: 64px; }