:root {
  --primary: #54d2f4;
  --primary-light: #79e1fd;
  --primary-dark: #2ba8cc;
  --dark-bg: #0d151b;
  --dark-card: #192835;
  --dark-card-hover: #22374a;
  --text-main: #f0f6fa;
  --text-muted: #9fb3c2;
  --border-color: rgba(84, 210, 244, 0.2);
  --warning: #facc15;
  --danger: #f87171;
  --ok: #4ade80;
  --font-display: 'Bebas Neue', sans-serif;
  --font-body: 'Josefin Sans', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--dark-bg);
  color: var(--text-main);
  line-height: 1.6;
  font-size: 16px;
}

a { color: var(--primary-light); text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* HEADER */
header {
  background: rgba(13, 21, 27, 0.95);
  border-bottom: 1px solid var(--border-color);
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(10px);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; gap: 16px; flex-wrap: wrap; }
.logo-container { display: flex; align-items: center; gap: 14px; }
.logo-container img { height: 34px; width: auto; }
.logo-divider { width: 1px; height: 28px; background: var(--border-color); }
.logo-meta { display: flex; flex-direction: column; }
.logo-meta strong { font-family: var(--font-display); font-size: 15px; letter-spacing: 1px; color: var(--text-main); line-height: 1.1; }
.logo-meta span { font-size: 11px; color: var(--text-muted); }
.back-link { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.back-link:hover { color: var(--primary-light); }
.btn-contact {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #0d151b; font-weight: 700; padding: 9px 20px; border-radius: 50px;
  font-size: 13px;
}

/* HERO */
.hero {
  padding: 60px 0 50px;
  background: radial-gradient(circle at 80% 20%, rgba(84, 210, 244, 0.14) 0%, transparent 60%);
  border-bottom: 1px solid var(--border-color);
}
.hero-content { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 40px; align-items: center; }
.badge-norma {
  display: inline-block; background: rgba(84, 210, 244, 0.12); color: var(--primary);
  border: 1px solid var(--border-color); padding: 5px 14px; border-radius: 20px;
  font-size: 13px; font-weight: 600; margin-bottom: 16px; letter-spacing: 0.3px;
}
.hero-title { font-family: var(--font-display); font-size: 52px; line-height: 1.02; color: #fff; margin-bottom: 16px; letter-spacing: 0.5px; }
.hero-title span { color: var(--primary); display: block; }
.hero-lead { color: var(--text-muted); font-size: 16px; max-width: 480px; }
.hero-glass-card {
  background: rgba(25, 40, 53, 0.7); border: 1px solid var(--border-color);
  border-radius: 16px; padding: 24px;
}
.hero-glass-card h4 { font-family: var(--font-display); font-size: 21px; letter-spacing: 0.5px; color: var(--primary-light); margin-bottom: 12px; }
.hero-types-list { list-style: none; }
.hero-types-list li { display: flex; align-items: baseline; gap: 10px; padding: 9px 0; border-bottom: 1px solid rgba(255,255,255,0.06); font-size: 14px; }
.hero-types-list li:last-child { border-bottom: none; }
.hero-types-list strong { color: var(--primary); font-family: var(--font-display); font-size: 16px; flex-shrink: 0; }

/* SEÇÕES */
section { padding: 56px 0; border-bottom: 1px solid rgba(84, 210, 244, 0.1); }
.section-title-wrap { text-align: center; margin-bottom: 36px; }
.section-icon { width: 56px; height: 56px; margin: 0 auto 14px; }
.section-tag { font-family: var(--font-display); font-size: 14px; color: var(--primary); letter-spacing: 2.5px; text-transform: uppercase; }
.section-title { font-family: var(--font-display); font-size: 34px; color: #fff; letter-spacing: 0.5px; }
.section-subtitle { color: var(--text-muted); font-size: 15px; max-width: 640px; margin: 10px auto 0; }

.grid-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.grid-3col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

.card {
  background: var(--dark-card); border: 1px solid var(--border-color);
  border-radius: 14px; padding: 22px;
}
.card-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.card-header .mini-icon { width: 28px; height: 28px; flex-shrink: 0; }
.card-header h3 { font-family: var(--font-display); font-size: 20px; letter-spacing: 0.3px; color: #fff; }

.alert-banner {
  display: flex; align-items: flex-start; gap: 12px;
  background: rgba(84, 210, 244, 0.1); border-left: 4px solid var(--primary);
  padding: 14px 18px; border-radius: 6px; margin-bottom: 24px; font-size: 14px;
}
.alert-banner svg { flex-shrink: 0; margin-top: 2px; }

.checklist { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.checklist li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; }
.checklist .mark { flex-shrink: 0; width: 18px; height: 18px; margin-top: 1px; }
.num-tag { display: inline-flex; align-items: center; justify-content: center; background: var(--primary); color: #0d151b; font-weight: 700; font-size: 10px; width: 16px; height: 16px; border-radius: 3px; }

.bullet-list { list-style: none; display: flex; flex-direction: column; gap: 10px; margin: 14px 0; }
.bullet-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; }
.bullet-list li::before { content: '—'; color: var(--primary); flex-shrink: 0; font-weight: 700; }

/* COMPONENTES */
.components-grid { display: grid; grid-template-columns: 1fr 300px; gap: 22px; align-items: start; }
.model-card { background: var(--dark-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 16px; text-align: center; }
.model-card h4 { font-family: var(--font-display); font-size: 17px; letter-spacing: 0.3px; color: var(--primary-light); margin-bottom: 10px; }
.schematic-box {
  width: 100%; background: rgba(13, 21, 27, 0.5);
  border: 1px dashed rgba(84, 210, 244, 0.28); border-radius: 8px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 4px; padding: 8px;
}

.legend-card { background: var(--dark-card); border: 1px solid var(--border-color); border-radius: 14px; padding: 20px; position: sticky; top: 90px; }
.legend-card h3 { font-family: var(--font-display); font-size: 19px; letter-spacing: 0.3px; margin-bottom: 12px; color: var(--primary-light); }
.legend-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.legend-item { display: flex; align-items: center; gap: 10px; font-size: 13.5px; }
.legend-badge {
  width: 22px; height: 22px; background: var(--primary); color: #0d151b;
  font-weight: 700; border-radius: 4px; display: flex; align-items: center; justify-content: center; font-size: 12px; flex-shrink: 0;
}

/* MANUTENÇÃO DESTAQUE */
.maintenance-banner {
  background: linear-gradient(145deg, var(--dark-card), rgba(84, 210, 244, 0.12));
  border: 1px solid var(--primary); border-radius: 14px; padding: 30px;
  text-align: center; margin-top: 8px;
}
.maintenance-banner .interval { font-family: var(--font-display); font-size: 42px; letter-spacing: 1px; color: var(--primary); line-height: 1; margin: 10px 0; }
.maintenance-banner h3 { font-family: var(--font-display); font-size: 26px; letter-spacing: 0.3px; color: #fff; }
.maintenance-banner p { color: var(--text-muted); font-size: 14px; max-width: 640px; margin: 0 auto; }

/* IMPORTANTE / FORMULÁRIO */
.important-card { border: 2px solid var(--primary); padding: 28px; }
.important-card h3 { font-family: var(--font-display); font-size: 24px; letter-spacing: 0.3px; color: var(--primary); text-align: center; }
.important-card > p.subtitle { text-align: center; color: var(--text-muted); font-size: 14px; margin: 6px 0 22px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 5px; }
.form-field label { font-size: 11.5px; font-weight: 600; color: var(--primary-light); text-transform: uppercase; letter-spacing: 0.5px; }
.input-line { border-bottom: 1px solid var(--border-color); padding: 10px 2px; color: var(--text-muted); font-size: 14px; min-height: 18px; }

/* FOOTER */
footer { background: #080d11; border-top: 1px solid var(--border-color); padding: 44px 0 22px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; margin-bottom: 26px; }
.footer-brand img { height: 30px; margin-bottom: 10px; }
.footer-col h5 { font-family: var(--font-display); font-size: 15px; letter-spacing: 0.3px; color: #fff; margin-bottom: 10px; }
.footer-col p, .footer-col a { font-size: 13px; color: var(--text-muted); display: block; margin-bottom: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 15px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 12px; color: var(--text-muted); }

@media (max-width: 850px) {
  .hero-content, .grid-2col, .grid-3col, .components-grid, .form-grid, .footer-grid { grid-template-columns: 1fr; }
  .legend-card { position: static; }
  .hero-title { font-size: 38px; }
  .btn-contact { font-size: 12px; padding: 8px 14px; }
}