/* ===========================================================
   decol.ia — Estilos do site
   Estética: "voo noturno / cockpit HUD + carta aeronáutica"
   Tokens de cor herdados de docs/07-guia-de-estilo.md
   =========================================================== */

:root {
  --bg: #0B0E14;
  --bg-alt: #0C1018;
  --surface: #12161F;
  --surface-2: #1A2130;
  --border: #20262F;
  --border-bright: #2C3645;
  --text: #E6EDF3;
  --text-muted: #8A96A6;
  --accent: #22D3EE;
  --accent-2: #34D399;
  --accent-grad: linear-gradient(115deg, #22D3EE, #34D399);
  --danger: #F87171;
  --warning: #FBBF24;

  --font-display: "Bricolage Grotesque", "Hanken Grotesk", system-ui, sans-serif;
  --font-body: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Space Mono", ui-monospace, "SFMono-Regular", monospace;

  --container: 1200px;
  --radius: 16px;
  --radius-sm: 9px;
  --radius-pill: 999px;
  --shadow: 0 18px 50px -12px rgba(0,0,0,.6);
  --glow: 0 0 60px rgba(34,211,238,.16);
  --t: 200ms cubic-bezier(.2,.7,.2,1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

/* ===== Atmosfera de fundo ===== */
.bg-grid {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(124,148,180,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(124,148,180,.05) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 80%);
          mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 80%);
}
.bg-grain {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 28px; }

h1, h2, h3 { font-family: var(--font-display); line-height: 1.06; font-weight: 700; letter-spacing: -.02em; }
h1 { font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
h3 { font-size: 1.2rem; font-weight: 600; letter-spacing: -.01em; }
p { color: var(--text); }
.muted { color: var(--text-muted); }
a { color: inherit; text-decoration: none; }

.grad-text {
  background: var(--accent-grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Rótulo técnico em mono (kicker / eyebrow) */
.kicker, .eyebrow {
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .04em;
  color: var(--accent); text-transform: uppercase; display: inline-block;
}
.kicker { color: var(--text-muted); margin-bottom: 14px; }

/* ===== Botões ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 9px; padding: 13px 24px; border-radius: var(--radius-sm);
  font-family: var(--font-body); font-weight: 600; font-size: .95rem;
  cursor: pointer; border: 1px solid transparent; position: relative;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t), background var(--t), color var(--t);
}
.btn-sm { padding: 9px 17px; font-size: .85rem; }
.btn-block { width: 100%; }
.btn-arrow { transition: transform var(--t); }
.btn:hover .btn-arrow { transform: translate(3px, -3px); }
.btn-primary { background: var(--accent-grad); color: #04141B; box-shadow: 0 6px 24px -6px rgba(34,211,238,.45); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 34px -8px rgba(34,211,238,.6); }
.btn-secondary { background: rgba(255,255,255,.02); border-color: var(--border-bright); color: var(--text); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,14,20,.72); backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-display); font-weight: 800; font-size: 1.2rem; letter-spacing: -.02em; }
.brand-light { color: var(--text-muted); font-weight: 500; }
.brand-mark { width: 28px; height: 28px; display: block; flex: none; filter: drop-shadow(0 0 10px rgba(34,211,238,.35)); }
.nav { display: flex; align-items: center; gap: 30px; }
.nav a { color: var(--text-muted); font-size: .92rem; transition: color var(--t); }
.nav a:not(.btn):hover { color: var(--text); }
.nav .btn { color: #04141B; }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; }

/* ===== Hero ===== */
.hero { position: relative; padding: 92px 0 96px; overflow: hidden; }
.hero-glow {
  position: absolute; top: -180px; left: 8%;
  width: 720px; height: 560px; max-width: 90vw;
  background: radial-gradient(ellipse at center, rgba(34,211,238,.2), rgba(52,211,153,.06) 45%, transparent 72%);
  filter: blur(24px); pointer-events: none;
}
/* pista em perspectiva no rodapé do hero */
.hero-runway {
  position: absolute; left: 50%; bottom: -10px; transform: translateX(-50%);
  width: 120%; height: 280px; pointer-events: none; opacity: .5;
  background:
    repeating-linear-gradient(90deg, transparent 0 78px, rgba(34,211,238,.12) 78px 80px),
    linear-gradient(to top, rgba(34,211,238,.06), transparent 70%);
  -webkit-mask-image: linear-gradient(to top, #000, transparent 75%);
          mask-image: linear-gradient(to top, #000, transparent 75%);
  transform: translateX(-50%) perspective(420px) rotateX(62deg);
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero-copy { max-width: 600px; }
.hero-title { font-size: clamp(2.5rem, 6vw, 4.2rem); margin: 18px 0 22px; letter-spacing: -.035em; }
.hero-sub { font-size: 1.1rem; color: var(--text-muted); max-width: 560px; margin-bottom: 30px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-note { margin-top: 22px; font-size: .88rem; color: var(--text-muted); padding-left: 14px; border-left: 2px solid var(--border-bright); }

.status-chip {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 15px; border-radius: var(--radius-pill);
  background: rgba(52,211,153,.06); border: 1px solid rgba(52,211,153,.22);
  font-family: var(--font-mono); font-size: .74rem; color: var(--accent-2); letter-spacing: .02em;
}
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 0 0 rgba(52,211,153,.6); animation: pulse 2.4s ease-out infinite; }

/* Painel "plano de voo" */
.flight-deck {
  position: relative; background: linear-gradient(180deg, rgba(26,33,48,.55), rgba(18,22,31,.55));
  border: 1px solid var(--border-bright); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow); backdrop-filter: blur(6px);
}
.flight-deck::before, .flight-deck::after {
  content: ""; position: absolute; width: 14px; height: 14px; border-color: var(--accent); border-style: solid; opacity: .55;
}
.flight-deck::before { top: 9px; left: 9px; border-width: 1px 0 0 1px; }
.flight-deck::after { bottom: 9px; right: 9px; border-width: 0 1px 1px 0; }
.deck-head {
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase;
  letter-spacing: .08em; color: var(--text-muted); margin-bottom: 6px; padding: 0 4px;
}
.deck-tag { color: var(--accent); border: 1px solid var(--border-bright); border-radius: 5px; padding: 2px 7px; }
.deck-svg { width: 100%; height: auto; display: block; }
.deck-svg .wp circle { fill: var(--bg); stroke: var(--accent); stroke-width: 2; }
.deck-svg .wp-end circle { fill: var(--accent-2); stroke: var(--accent-2); filter: drop-shadow(0 0 6px rgba(52,211,153,.7)); }
.deck-svg .wp text { fill: var(--text-muted); font-family: var(--font-mono); font-size: 11px; letter-spacing: .03em; }
.deck-svg .wp-end text { fill: var(--accent-2); }
.deck-plane { filter: drop-shadow(0 0 6px rgba(34,211,238,.7)); }
.deck-readout {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 12px;
}
.deck-readout div {
  background: rgba(11,14,20,.5); border: 1px solid var(--border); border-radius: 8px;
  padding: 9px 11px; display: flex; flex-direction: column; gap: 3px;
}
.deck-readout span { font-family: var(--font-mono); font-size: .62rem; color: var(--text-muted); letter-spacing: .06em; }
.deck-readout strong { font-family: var(--font-mono); font-size: .82rem; color: var(--text); font-weight: 700; }
.deck-readout .ok { color: var(--accent-2); }

/* ===== Seções ===== */
.section { padding: 92px 0; position: relative; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-alt::before {
  content: ""; position: absolute; top: -1px; left: 0; right: 0; height: 1px;
  background: repeating-linear-gradient(90deg, var(--border-bright) 0 12px, transparent 12px 26px);
}
.section-head { max-width: 680px; margin: 0 auto 52px; text-align: center; }
.section-head .eyebrow { margin-bottom: 12px; }
.section-head h2 { margin-bottom: 12px; }

/* ===== Abordagem ===== */
.approach { display: grid; grid-template-columns: 1.15fr 1fr; gap: 56px; align-items: center; }
.approach h2 { margin-bottom: 18px; }
.approach-list { list-style: none; display: grid; gap: 12px; }
.approach-list li {
  display: flex; align-items: baseline; gap: 14px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 15px 18px; transition: border-color var(--t), transform var(--t);
}
.approach-list li:hover { border-color: var(--border-bright); transform: translateX(4px); }
.al-n { font-family: var(--font-mono); font-size: .82rem; font-weight: 700; color: var(--accent); flex: none; }

/* ===== Grids / Cards ===== */
.grid { display: grid; gap: 22px; }
.cards-3 { grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }
.card {
  position: relative; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 30px 28px; overflow: hidden;
  transition: transform var(--t), border-color var(--t), box-shadow var(--t);
}
/* hairline de acento no topo */
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--accent-grad); transform: scaleX(0); transform-origin: left;
  transition: transform 320ms cubic-bezier(.2,.7,.2,1);
}
/* código de registro no canto */
.card[data-code]::after {
  content: attr(data-code); position: absolute; top: 18px; right: 20px;
  font-family: var(--font-mono); font-size: .68rem; color: var(--text-muted);
  letter-spacing: .05em; opacity: .6;
}
.card:hover { transform: translateY(-5px); border-color: var(--border-bright); box-shadow: var(--shadow), var(--glow); }
.card:hover::before { transform: scaleX(1); }
.card-icon {
  width: 46px; height: 46px; display: grid; place-items: center; margin-bottom: 18px;
  border-radius: 11px; color: var(--accent);
  background: linear-gradient(180deg, rgba(34,211,238,.12), rgba(52,211,153,.06));
  border: 1px solid rgba(34,211,238,.22);
}
.card-icon svg { width: 24px; height: 24px; }
.card h3 { margin-bottom: 9px; }
.card p { color: var(--text-muted); font-size: .95rem; }
.card-list { list-style: none; margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--border-bright); display: grid; gap: 9px; }
.card-list li { position: relative; padding-left: 24px; color: var(--text-muted); font-size: .9rem; }
.card-list li::before {
  content: "→"; position: absolute; left: 0; color: var(--accent-2); font-weight: 700;
}
.card-soft { padding-bottom: 30px; }

/* ===== Cards de serviço (ícone + título + descrição + tags) ===== */
.service-card { display: flex; flex-direction: column; }
.service-card p { flex: 1; }
.card-arrow {
  position: absolute; top: 22px; right: 22px; font-size: 1.05rem; line-height: 1;
  color: var(--text-muted); transition: transform var(--t), color var(--t);
}
.service-card:hover .card-arrow { color: var(--accent); transform: translate(3px, -3px); }
.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tags li {
  font-family: var(--font-mono); font-size: .66rem; letter-spacing: .07em; text-transform: uppercase;
  color: var(--text-muted); padding: 5px 11px; border: 1px solid var(--border-bright);
  border-radius: var(--radius-pill); background: rgba(255,255,255,.015);
  transition: border-color var(--t), color var(--t);
}
.service-card:hover .tags li { border-color: rgba(34,211,238,.3); color: var(--text); }

/* ===== Steps (trajetória) ===== */
.steps {
  list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 22px; counter-reset: step; position: relative;
}
.steps li {
  position: relative; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 26px; transition: border-color var(--t), transform var(--t);
}
.steps li:hover { border-color: var(--border-bright); transform: translateY(-4px); }
.step-n {
  display: inline-block; font-family: var(--font-mono); font-size: 1.9rem; font-weight: 700;
  background: var(--accent-grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; margin-bottom: 10px;
}
.steps h3 { margin-bottom: 7px; }
.steps p { color: var(--text-muted); font-size: .94rem; }

/* ===== CTA / Formulário ===== */
.section-cta { background: linear-gradient(180deg, var(--bg-alt), var(--bg)); }
.cta-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.cta-text h2 { margin-bottom: 14px; }
.cta-bullets { list-style: none; margin-top: 24px; display: grid; gap: 12px; }
.cta-bullets li { position: relative; padding-left: 28px; color: var(--text); }
.cta-bullets li::before {
  content: "✓"; position: absolute; left: 0; top: -1px; width: 19px; height: 19px;
  display: grid; place-items: center; font-size: .7rem; color: var(--accent-2);
  border: 1px solid rgba(52,211,153,.4); border-radius: 5px;
}

.lead-form {
  position: relative; background: var(--surface); border: 1px solid var(--border-bright);
  border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow);
}
.form-head {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 16px; margin-bottom: 22px;
  border-bottom: 1px dashed var(--border-bright);
}
.form-head-label { font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-muted); }
.form-head img { filter: drop-shadow(0 0 8px rgba(34,211,238,.4)); }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field { margin-bottom: 16px; }
.field label { display: block; font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; font-weight: 400; margin-bottom: 7px; color: var(--text-muted); }
.field input, .field select, .field textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 12px 14px; color: var(--text); font-family: var(--font-body); font-size: .95rem;
  transition: border-color var(--t), box-shadow var(--t), background var(--t);
}
/* Menu nativo do select em tema escuro (opções legíveis, sem fundo branco) */
.field select { color-scheme: dark; }
.field select option { background-color: var(--surface); color: var(--text); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--accent); background: rgba(34,211,238,.03);
  box-shadow: 0 0 0 3px rgba(34,211,238,.14);
}
.field textarea { resize: vertical; }
.form-status { margin-top: 12px; font-size: .9rem; min-height: 1.2em; font-family: var(--font-mono); }
.form-status.ok { color: var(--accent-2); }
.form-status.err { color: var(--danger); }
.form-fineprint { margin-top: 14px; font-size: .76rem; color: var(--text-muted); }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--border); padding: 56px 0 28px; background: var(--bg-alt); }
.footer-inner { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; margin-bottom: 28px; }
.footer-inner .muted { margin-top: 12px; font-size: .9rem; }
.footer-links { display: flex; flex-direction: column; gap: 11px; }
.footer-links a { color: var(--text-muted); font-size: .92rem; transition: color var(--t), padding var(--t); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 22px; font-family: var(--font-mono); font-size: .76rem; letter-spacing: .02em; }

/* ===== Animações ===== */
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(52,211,153,.5); }
  70% { box-shadow: 0 0 0 9px rgba(52,211,153,0); }
  100% { box-shadow: 0 0 0 0 rgba(52,211,153,0); }
}
@keyframes reveal {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal { opacity: 0; animation: reveal .8s var(--d, 0s) cubic-bezier(.2,.7,.2,1) forwards; }

/* ===== Responsivo ===== */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .flight-deck { max-width: 460px; }
  .approach, .cta-inner { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 768px) {
  .nav { display: none; }
  .nav.open { display: flex; position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; align-items: flex-start; background: var(--bg); border-bottom: 1px solid var(--border); padding: 18px 28px; gap: 16px; }
  .nav-toggle { display: block; }
  .section { padding: 64px 0; }
  .hero { padding: 64px 0 72px; }
  .section-head { text-align: left; }
}

/* ===== Acessibilidade: respeita quem prefere menos movimento ===== */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto; }
  .reveal { opacity: 1; }
  .status-dot { animation: none; }
}