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

:root {
  --orange: #F97316;
  --orange-dark: #EA580C;
  --orange-light: #FED7AA;
  --orange-xlight: #FFF7ED;
  --navy: #0F172A;
  --navy2: #1E293B;
  --slate: #475569;
  --slate-light: #94A3B8;
  --border: #E2E8F0;
  --bg: #F8FAFC;
  --white: #FFFFFF;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow: 0 2px 16px rgba(0,0,0,.07);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.10);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--navy);
  background: var(--white);
  line-height: 1.65;
  font-size: 15px;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 28px;
  height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo img { height: 38px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  flex: 1;
  justify-content: center;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--slate);
  padding: 7px 14px;
  border-radius: 8px;
  transition: color .18s, background .18s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--navy); background: var(--bg); }

.btn-aula {
  background: var(--orange);
  color: white !important;
  padding: 9px 18px;
  border-radius: 9px;
  font-size: 13.5px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  transition: background .18s, transform .15s;
  flex-shrink: 0;
}

.btn-aula:hover { background: var(--orange-dark); transform: translateY(-1px); }

/* ── LAYOUT ── */
.page-wrap { padding-top: 66px; }

.container { max-width: 1160px; margin: 0 auto; padding: 0 28px; }

section { padding: 88px 0; }

/* ── LABELS / HEADINGS ── */
.label {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .09em;
  color: var(--orange);
  margin-bottom: 14px;
}

h1, h2, h3 { line-height: 1.2; font-weight: 800; }

h1 { font-size: clamp(2rem, 4.5vw, 3rem); color: var(--navy); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); color: var(--navy); }
h3 { font-size: 1.05rem; color: var(--navy); }

.lead {
  font-size: 1.05rem;
  color: var(--slate);
  max-width: 560px;
  margin-top: 16px;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .15s, box-shadow .2s, background .18s;
  border: none;
}

.btn-primary {
  background: var(--orange);
  color: white;
  box-shadow: 0 3px 12px rgba(249,115,22,.28);
}

.btn-primary:hover { background: var(--orange-dark); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(249,115,22,.35); }

.btn-ghost {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--border);
}

.btn-ghost:hover { border-color: var(--orange); color: var(--orange); transform: translateY(-1px); }

/* ── HERO ── */
.hero {
  padding: 100px 28px 80px;
  text-align: center;
  background: white;
}

.hero-logo { margin: 0 auto 44px; max-height: 180px; width: auto; }

.hero h1 { margin-bottom: 20px; }
.hero h1 em { font-style: normal; color: var(--orange); }

.hero .lead { margin: 0 auto 40px; }

.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── STATS BAR ── */
.stats-bar {
  background: var(--navy);
  padding: 48px 28px;
}

.stats-grid {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

@media (max-width: 600px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }

.stat-num { font-size: 2.2rem; font-weight: 900; color: var(--orange); }
.stat-lbl { font-size: 13px; color: var(--slate-light); margin-top: 4px; }

/* ── CARD GRID ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.card {
  background: white;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}

.card:hover {
  border-color: var(--orange);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 48px; height: 48px;
  background: var(--orange-xlight);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
}

.card h3 { margin-bottom: 8px; }

.card p { font-size: 14px; color: var(--slate); line-height: 1.65; }

.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }

.tag {
  font-size: 11px;
  font-weight: 600;
  background: var(--bg);
  color: var(--slate);
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

/* ── SECTION HEADER ── */
.sec-header { margin-bottom: 52px; }
.sec-header.center { text-align: center; }
.sec-header.center .lead { margin: 16px auto 0; }

/* ── MOODLE ADVANTAGES ── */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.adv-card {
  border-radius: var(--radius-lg);
  padding: 28px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  transition: transform .2s, box-shadow .2s;
}

.adv-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }

.adv-card .adv-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--orange);
  opacity: .25;
  line-height: 1;
  margin-bottom: 12px;
}

.adv-card h3 { margin-bottom: 8px; font-size: 1rem; }
.adv-card p { font-size: 13.5px; color: var(--slate); }

/* ── IA DARK BLOCK ── */
.ia-block {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 60px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

@media (max-width: 760px) { .ia-block { grid-template-columns: 1fr; padding: 36px 28px; gap: 36px; } }

.ia-block .label { color: var(--orange-light); }
.ia-block h2 { color: white; }
.ia-block .lead { color: var(--slate-light); }

.ia-items { display: flex; flex-direction: column; gap: 16px; }

.ia-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  border-radius: var(--radius);
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.07);
  transition: background .2s;
}

.ia-item:hover { background: rgba(249,115,22,.09); border-color: rgba(249,115,22,.25); }

.ia-item-icon {
  width: 40px; height: 40px;
  background: var(--orange);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.ia-item h4 { color: white; font-size: 14px; font-weight: 700; margin-bottom: 3px; }
.ia-item p { font-size: 13px; color: var(--slate-light); }

/* ── PROCESS ── */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 4px;
}

.proc-step {
  text-align: center;
  padding: 28px 20px;
  position: relative;
}

.proc-step:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -10px;
  top: 38px;
  color: var(--orange-light);
  font-size: 20px;
}

@media (max-width: 640px) { .proc-step:not(:last-child)::after { display: none; } }

.proc-num {
  width: 48px; height: 48px;
  background: var(--orange);
  color: white;
  border-radius: 50%;
  font-size: 18px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}

.proc-step h4 { font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.proc-step p { font-size: 13px; color: var(--slate); }

/* ── CTA BAND ── */
.cta-band {
  background: var(--orange);
  padding: 72px 28px;
  text-align: center;
}

.cta-band h2 { color: white; margin-bottom: 12px; }
.cta-band p { color: rgba(255,255,255,.85); max-width: 480px; margin: 0 auto 32px; }

.btn-white {
  background: white;
  color: var(--orange-dark);
  padding: 14px 30px;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 18px rgba(0,0,0,.12);
  transition: transform .15s, box-shadow .2s;
}

.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 26px rgba(0,0,0,.18); }

/* ── CONTACT FORM ── */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}

@media (max-width: 760px) { .contact-wrap { grid-template-columns: 1fr; gap: 40px; } }

.contact-info h2 { margin-bottom: 16px; }
.contact-info p { color: var(--slate); margin-bottom: 32px; }

.contact-detail {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--slate);
}

.contact-detail strong { color: var(--navy); }

.contact-detail-icon {
  width: 38px; height: 38px;
  background: var(--orange-xlight);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
}

form { display: flex; flex-direction: column; gap: 16px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 540px) { .form-row { grid-template-columns: 1fr; } }

.field { display: flex; flex-direction: column; gap: 6px; }

.field label { font-size: 13px; font-weight: 600; color: var(--navy2); }

.field input,
.field textarea,
.field select {
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: inherit;
  color: var(--navy);
  background: white;
  transition: border-color .18s, box-shadow .18s;
  outline: none;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(249,115,22,.1);
}

.field textarea { min-height: 120px; resize: vertical; }

.form-msg {
  padding: 13px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  display: none;
}

.form-msg.success { background: #F0FDF4; color: #166534; border: 1px solid #BBF7D0; display: block; }
.form-msg.error { background: #FEF2F2; color: #991B1B; border: 1px solid #FECACA; display: block; }

/* ── FOOTER ── */
footer {
  background: var(--navy);
  padding: 56px 28px 28px;
}

.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

@media (max-width: 680px) { .footer-grid { grid-template-columns: 1fr; gap: 32px; } }

.footer-brand img { display: block; }

.footer-brand p { font-size: 13.5px; color: var(--slate-light); line-height: 1.7; }

.footer-col h5 { color: white; font-size: 13px; font-weight: 700; margin-bottom: 14px; letter-spacing: .04em; }

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 9px; }

.footer-col ul a { font-size: 13.5px; color: var(--slate-light); transition: color .18s; }
.footer-col ul a:hover { color: var(--orange); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12.5px;
  color: var(--slate-light);
}

/* ── BG VARIANTS ── */
.bg-gray { background: var(--bg); }

/* ── RESPONSIVE ── */
@media (max-width: 480px) {
  .nav-links { display: none; }
  .hero { padding: 80px 20px 60px; }
  section { padding: 64px 0; }
}