/* ============================================================
   aicod_OS — design system (construído do zero, 12/ago)
   Claro, amigável e tecnológico SEM cara de programador:
   glow verde suave, cartões brancos flutuando, painel de
   "sistema operacional do negócio" vivo, ícones em gradiente.
   Público: dono de empresa leigo. Zero jargão visual.
   ============================================================ */

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

:root {
  --bg: #f7f9fa;
  --surface: #ffffff;
  --ink: #0d1319;
  --dim: #5a6570;
  --faint: #96a1ab;
  --line: #e6ebee;
  --green: #0da865;
  --green-ink: #0a8a54;
  --green-vivid: #00c774;
  --green-soft: #e6f9ef;
  --dark: #0d1319;
  --disp: "Space Grotesk", system-ui, sans-serif;
  --sans: "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --r: 18px;
  --sh-sm: 0 1px 2px rgba(13, 19, 25, 0.04), 0 8px 20px -10px rgba(13, 19, 25, 0.10);
  --sh-md: 0 2px 4px rgba(13, 19, 25, 0.04), 0 24px 60px -20px rgba(13, 19, 25, 0.16);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html { scroll-behavior: smooth; }
body {
  background: var(--bg); color: var(--ink);
  font-family: var(--sans); font-size: 16px; line-height: 1.65;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
::selection { background: var(--green); color: #fff; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--disp); font-weight: 600; line-height: 1.08; letter-spacing: -0.03em; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 26px; }
.mono { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.04em; }

/* luz verde ambiente */
.glow { position: fixed; z-index: 0; pointer-events: none; border-radius: 50%; }
.glow-a { top: -28%; right: -14%; width: 860px; height: 860px;
  background: radial-gradient(circle, rgba(0, 199, 116, 0.13), rgba(0, 199, 116, 0.04) 45%, transparent 70%); }
.glow-b { bottom: -34%; left: -18%; width: 760px; height: 760px;
  background: radial-gradient(circle, rgba(0, 199, 116, 0.07), transparent 65%); }
main, header, footer { position: relative; z-index: 1; }

/* reveals */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* ---------- header ---------- */

.topbar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; transition: background 0.3s, box-shadow 0.3s; }
.topbar.is-scrolled { background: rgba(247, 249, 250, 0.85); backdrop-filter: blur(14px); box-shadow: 0 1px 0 var(--line); }
.topbar-inner { max-width: 1200px; margin: 0 auto; padding: 18px 26px; display: flex; align-items: center; gap: 34px; }
.logo { font-family: var(--mono); font-weight: 500; font-size: 1.1rem; }
.logo i { color: var(--green); font-style: normal; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.nav { display: flex; gap: 26px; flex: 1; }
.nav a { font-size: 0.88rem; color: var(--dim); transition: color 0.2s; }
.nav a:hover, .nav a.is-active { color: var(--ink); }
.lang-switch { font-family: var(--mono); font-size: 0.7rem; font-weight: 500; color: var(--dim); border: 1px solid var(--line); border-radius: 100px; padding: 6px 12px; align-self: center; transition: color 0.2s, border-color 0.2s; }
.lang-switch:hover { color: var(--green-ink); border-color: var(--green); }
.burger { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.burger span { display: block; width: 22px; height: 2px; border-radius: 2px; background: var(--ink); margin: 5px 0; transition: transform 0.3s; }

/* ---------- botões e selos ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 0.9rem; font-weight: 600; border-radius: 100px; cursor: pointer;
  padding: 12px 26px; border: 1px solid var(--line);
  transition: transform 0.3s var(--ease), box-shadow 0.3s, background 0.3s, border-color 0.3s, color 0.3s;
}
.btn-dark { background: var(--dark); border-color: var(--dark); color: #fff; box-shadow: 0 12px 28px -12px rgba(13, 19, 25, 0.4); }
.btn-dark:hover { background: #1b2733; transform: translateY(-2px); }
.btn-light { background: var(--surface); color: var(--ink); }
.btn-light:hover { border-color: var(--green); color: var(--green-ink); transform: translateY(-2px); }
.btn-lg { padding: 15px 32px; font-size: 0.95rem; }

.pill {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--mono); font-size: 0.72rem; color: var(--green-ink);
  background: var(--surface); border: 1px solid var(--line); border-radius: 100px;
  padding: 8px 16px; box-shadow: var(--sh-sm);
}
.pill i { width: 7px; height: 7px; border-radius: 50%; background: var(--green-vivid); box-shadow: 0 0 8px var(--green-vivid); animation: pulse 2.2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: 0.35; } }

.chip { font-family: var(--mono); font-size: 0.68rem; color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: 100px; padding: 5px 12px; white-space: nowrap; }

/* ---------- seções ---------- */

.section { padding: 100px 0; position: relative; }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; margin-bottom: 44px; }
.sec-head h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); }
.sec-head p { color: var(--dim); max-width: 560px; margin-top: 10px; }
.sec-link { font-size: 0.9rem; font-weight: 600; color: var(--green-ink); white-space: nowrap; }
.sec-link:hover { text-decoration: underline; }

/* ---------- hero OS ---------- */

.hero { padding: 150px 0 90px; }
.hero-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(2.4rem, 4.8vw, 3.6rem); margin: 24px 0 20px; }
.hero h1 em { font-style: normal; color: var(--green-ink); }
.hero-sub { color: var(--dim); font-size: 1.05rem; max-width: 470px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* o painel aicod_OS */
.os {
  background: var(--surface); border: 1px solid var(--line); border-radius: 22px;
  box-shadow: var(--sh-md); overflow: hidden;
  transition: transform 0.25s var(--ease); will-change: transform;
}
.sim-field { display: block; width: 100%; height: 150px; margin-bottom: 16px; }
.os-bar { display: flex; align-items: center; justify-content: space-between; padding: 15px 22px; border-bottom: 1px solid var(--line); }
.os-bar b { font-family: var(--mono); font-size: 0.74rem; font-weight: 500; }
.os-bar b i { color: var(--green); font-style: normal; }
.os-bar span { font-family: var(--mono); font-size: 0.66rem; color: var(--green-ink); }
.os-body { display: grid; grid-template-columns: 1.22fr 1fr; }
.os-main { padding: 20px; display: flex; flex-direction: column; gap: 12px; border-right: 1px solid var(--line); }
.osmod { border: 1px solid var(--line); border-radius: 14px; padding: 15px 17px; display: flex; justify-content: space-between; align-items: center; gap: 12px; transition: border-color 0.3s, transform 0.3s var(--ease); }
.osmod:hover { border-color: var(--green); transform: translateX(3px); }
.osmod .t b { font-size: 0.9rem; font-weight: 600; display: block; }
.osmod .t span { font-size: 0.76rem; color: var(--faint); }
.osmod .v { font-family: var(--mono); font-size: 0.68rem; color: var(--green-ink); background: var(--green-soft); padding: 5px 12px; border-radius: 100px; white-space: nowrap; }
.os-side { padding: 20px; }
.os-label { font-family: var(--mono); font-size: 0.62rem; color: var(--faint); letter-spacing: 0.08em; margin-bottom: 12px; }
.bars { display: flex; align-items: flex-end; gap: 7px; height: 108px; margin-bottom: 18px; }
.bars i { flex: 1; border-radius: 4px 4px 0 0; background: linear-gradient(180deg, var(--green-vivid), var(--green)); opacity: 0.9; transition: height 1s var(--ease); }
.os-log { font-family: var(--mono); font-size: 0.66rem; line-height: 2; color: var(--dim); min-height: 5.2em; }
.os-log .ok { color: var(--green-ink); }
.os-log div { animation: logIn 0.5s var(--ease); }
@keyframes logIn { from { opacity: 0; transform: translateY(6px); } }

/* ---------- números que sobem ---------- */

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 28px 26px; box-shadow: var(--sh-sm); transition: transform 0.4s var(--ease), box-shadow 0.3s; }
.stat:hover { transform: translateY(-4px); box-shadow: var(--sh-md); }
.stat b { font-family: var(--disp); font-size: clamp(1.9rem, 3.4vw, 2.6rem); font-weight: 600; display: block; line-height: 1.05; }
.stat b em { font-style: normal; color: var(--green-ink); }
.stat span { color: var(--dim); font-size: 0.85rem; }

/* ---------- apps (projetos) ---------- */

.apps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.app {
  display: block; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r);
  padding: 26px; box-shadow: var(--sh-sm);
  transition: transform 0.45s var(--ease), box-shadow 0.35s, border-color 0.35s;
}
.app:hover { transform: translateY(-5px); box-shadow: var(--sh-md); border-color: rgba(13, 168, 101, 0.35); }
.app-top { display: flex; align-items: center; gap: 13px; margin-bottom: 10px; }
.app-top > b { font-family: var(--disp); font-size: 1.15rem; font-weight: 600; }
.app-ic {
  width: 46px; height: 46px; border-radius: 13px; flex: 0 0 auto;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-weight: 500; font-size: 1rem; color: #fff;
}
.ic-1 { background: linear-gradient(135deg, #0d1319, #32404e); }
.ic-2 { background: linear-gradient(135deg, #0da865, #00c774); }
.ic-3 { background: linear-gradient(135deg, #3a4854, #0d1319); }
.ic-4 { background: linear-gradient(135deg, #0a8a54, #0da865); }
.ic-5 { background: linear-gradient(135deg, #1b2733, #5a6570); }
.ic-6 { background: linear-gradient(135deg, #00c774, #7de8b5); }
.app-top b { font-family: var(--disp); font-size: 1.1rem; font-weight: 600; display: block; }
.app-top span { font-family: var(--mono); font-size: 0.62rem; color: var(--green-ink); }
.app-top span::before { content: "● "; color: var(--green-vivid); }
.app p { color: var(--dim); font-size: 0.9rem; margin-bottom: 16px; }
.app-met { display: flex; gap: 8px; flex-wrap: wrap; }

/* flagship (obra principal) */
.app-flag { border: 1.5px solid rgba(13, 168, 101, 0.4); border-radius: 22px; background: var(--surface); box-shadow: var(--sh-md); padding: 44px 42px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; margin-bottom: 22px; }
.app-flag h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin-bottom: 12px; }
.app-flag .flag-tag { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.08em; color: var(--green-ink); background: var(--green-soft); border-radius: 100px; padding: 5px 14px; display: inline-block; margin-bottom: 16px; }
.app-flag p { color: var(--dim); font-size: 0.98rem; margin-bottom: 18px; }
.app-flag .sim-field { height: 200px; margin: 0; }
@media (max-width: 980px) { .app-flag { grid-template-columns: 1fr; padding: 32px 28px; } }

/* app grande (página projetos) */
.app-lg { grid-column: span 1; }
.apps-2 { grid-template-columns: repeat(2, 1fr); }

/* ---------- serviços (o que instalamos) ---------- */

.svcs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.svcs-3 { grid-template-columns: repeat(3, 1fr); }
.svc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 32px 30px; box-shadow: var(--sh-sm); display: flex; gap: 20px; transition: transform 0.4s var(--ease), box-shadow 0.3s; }
.svc:hover { transform: translateY(-4px); box-shadow: var(--sh-md); }
.svc-ic { width: 52px; height: 52px; border-radius: 15px; background: var(--green-soft); color: var(--green-ink); display: flex; align-items: center; justify-content: center; flex: 0 0 auto; font-size: 1.35rem; }
.svc b { font-family: var(--disp); font-size: 1.12rem; font-weight: 600; display: block; margin-bottom: 6px; }
.svc p { color: var(--dim); font-size: 0.9rem; }

/* ---------- passos ---------- */

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: passo; }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 30px 28px; box-shadow: var(--sh-sm); position: relative; }
.step::before { counter-increment: passo; content: counter(passo); position: absolute; top: -16px; left: 26px; width: 34px; height: 34px; border-radius: 50%; background: var(--green); color: #fff; font-family: var(--disp); font-weight: 600; display: flex; align-items: center; justify-content: center; font-size: 0.95rem; box-shadow: 0 6px 14px -4px rgba(13, 168, 101, 0.5); }
.step b { font-family: var(--disp); font-size: 1.08rem; display: block; margin: 8px 0 8px; }
.step p { color: var(--dim); font-size: 0.9rem; }

/* ---------- faixa CTA ---------- */

.cta-band { background: var(--dark); border-radius: 24px; padding: 60px 40px; text-align: center; position: relative; overflow: hidden; }
.cta-band::before { content: ""; position: absolute; top: -60%; left: 50%; transform: translateX(-50%); width: 640px; height: 640px; border-radius: 50%; background: radial-gradient(circle, rgba(0, 199, 116, 0.25), transparent 65%); }
.cta-band h2 { color: #fff; font-size: clamp(1.7rem, 3.6vw, 2.6rem); margin-bottom: 12px; position: relative; }
.cta-band p { color: rgba(255, 255, 255, 0.65); margin-bottom: 30px; position: relative; }
.cta-band .btn-green { background: var(--green-vivid); border: 0; color: #04130a; position: relative; }
.cta-band .btn-green:hover { background: #21e08a; transform: translateY(-2px); }

/* ---------- página interna: cabeçalho ---------- */

.page-head { padding: 150px 0 30px; }
.page-head h1 { font-size: clamp(2.1rem, 4.4vw, 3.2rem); margin: 18px 0 16px; }
.page-head .hero-sub { margin-bottom: 0; }

/* ---------- sobre ---------- */

.brands { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 24px 0; margin: 50px 0; }
.brands .container { display: flex; flex-wrap: wrap; gap: 12px 32px; justify-content: center; align-items: baseline; }
.brands span { font-family: var(--disp); font-weight: 500; color: var(--faint); font-size: 1rem; }
.brands .mono { color: var(--green-ink); width: 100%; text-align: center; }

.duo { display: grid; grid-template-columns: 1.5fr 1fr; gap: 46px; align-items: start; }
.tl { display: flex; flex-direction: column; }
.tl-i { position: relative; padding: 0 0 30px 28px; border-left: 2px solid var(--line); }
.tl-i:last-child { border-left-color: transparent; padding-bottom: 0; }
.tl-i::before { content: ""; position: absolute; left: -7px; top: 4px; width: 12px; height: 12px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px var(--green-soft); }
.tl-i .when { font-family: var(--mono); font-size: 0.66rem; color: var(--faint); }
.tl-i h3 { font-size: 1.08rem; margin: 4px 0 2px; }
.tl-i .org { color: var(--green-ink); font-size: 0.85rem; font-weight: 600; display: block; margin-bottom: 6px; }
.tl-i p { color: var(--dim); font-size: 0.9rem; }

.kcards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.kcard { background: var(--surface); border: 1px solid var(--line); border-radius: 15px; padding: 20px 22px; box-shadow: var(--sh-sm); }
.kcard b { display: block; font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--green-ink); margin-bottom: 7px; }
.kcard p { color: var(--dim); font-size: 0.86rem; line-height: 1.7; }

.list-ck { list-style: none; display: grid; gap: 12px; }
.list-ck li { padding-left: 26px; position: relative; color: var(--dim); font-size: 0.92rem; }
.list-ck li::before { content: "✓"; position: absolute; left: 0; color: var(--green-ink); font-weight: 700; }
.list-ck b { color: var(--ink); }

/* ---------- notícias ---------- */

.news-filter { display: flex; gap: 10px; margin-top: 24px; }
.news-filter a { font-size: 0.85rem; font-weight: 600; color: var(--dim); background: var(--surface); border: 1px solid var(--line); border-radius: 100px; padding: 8px 18px; }
.news-filter a.is-active { background: var(--dark); border-color: var(--dark); color: #fff; }

.news-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.news-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 24px 26px; box-shadow: var(--sh-sm); display: flex; flex-direction: column; gap: 8px; transition: transform 0.35s var(--ease), box-shadow 0.3s; }
.news-item:hover { transform: translateY(-4px); box-shadow: var(--sh-md); }
.news-meta { display: flex; gap: 14px; align-items: center; font-family: var(--mono); font-size: 0.66rem; color: var(--faint); }
.news-meta .src { color: var(--green-ink); }
.news-item h2, .news-item h3 { font-size: 1.02rem; font-weight: 600; font-family: var(--sans); line-height: 1.45; }
.news-item p { color: var(--dim); font-size: 0.88rem; }
.badge-ia { font-family: var(--mono); font-size: 0.6rem; color: var(--green-ink); background: var(--green-soft); border-radius: 100px; padding: 3px 10px; }

/* ---------- cursos ---------- */

.promo {
  display: block; border-radius: 22px; padding: 44px 40px; margin-bottom: 40px;
  background: linear-gradient(135deg, var(--green-soft), var(--surface) 60%);
  border: 1.5px solid rgba(13, 168, 101, 0.35); box-shadow: var(--sh-sm);
  transition: transform 0.4s var(--ease), box-shadow 0.3s;
}
.promo:hover { transform: translateY(-4px); box-shadow: var(--sh-md); }
.promo h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 10px 0; }
.promo p { color: var(--dim); max-width: 620px; margin-bottom: 18px; }

.courses { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.course { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 30px 28px; box-shadow: var(--sh-sm); display: flex; flex-direction: column; gap: 13px; transition: transform 0.4s var(--ease), box-shadow 0.3s; }
.course:hover { transform: translateY(-5px); box-shadow: var(--sh-md); }
.course h2 { font-size: 1.25rem; }
.course .lvl { font-family: var(--mono); font-size: 0.66rem; color: var(--faint); }
.course p { color: var(--dim); font-size: 0.9rem; }
.course ul { list-style: none; display: grid; gap: 8px; margin: 4px 0 8px; }
.course li { color: var(--dim); font-size: 0.86rem; padding-left: 20px; position: relative; }
.course li::before { content: "→"; position: absolute; left: 0; color: var(--green-ink); font-size: 0.78rem; }
.course .btn { margin-top: auto; align-self: flex-start; }
.tag-soon { font-family: var(--mono); font-size: 0.62rem; color: var(--green-ink); background: var(--green-soft); border-radius: 100px; padding: 4px 12px; align-self: flex-start; }

/* ---------- mini curso (funcional, retema OS) ---------- */

.mc-badges { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }
.mc-badges span { font-family: var(--mono); font-size: 0.7rem; border: 1px solid var(--line); background: var(--surface); border-radius: 100px; padding: 6px 14px; color: var(--dim); }
.mc { max-width: 640px; margin: 0 auto; position: relative; }
.mc-top { display: flex; align-items: center; gap: 14px; margin-bottom: 26px; }
.mc-bar { flex: 1; height: 10px; border-radius: 100px; background: var(--line); overflow: hidden; }
.mc-bar i { display: block; height: 100%; width: 0; border-radius: 100px; background: linear-gradient(90deg, var(--green-vivid), var(--green)); transition: width 0.5s var(--ease); }
.mc-xp { font-family: var(--mono); font-size: 0.74rem; color: var(--green-ink); font-weight: 500; white-space: nowrap; }
.mc-stage { display: flex; flex-direction: column; gap: 16px; animation: mcIn 0.4s var(--ease); }
@keyframes mcIn { from { opacity: 0; transform: translateY(12px); } }
.mc-bit-row { display: flex; gap: 12px; align-items: flex-end; }
.mc-bit { width: 60px; height: 60px; flex: 0 0 auto; }
.bit-svg { width: 100%; height: 100%; filter: drop-shadow(0 3px 8px rgba(13, 19, 25, 0.12)); }
.bit-eyes { transform-origin: 36px 37px; animation: bitBlink 4.6s infinite; }
@keyframes bitBlink { 0%, 93%, 100% { transform: scaleY(1); } 95.5%, 97.5% { transform: scaleY(0.12); } }
.bit-tip { animation: pulse 2.2s ease-in-out infinite; }
.mc-bit.is-happy { animation: bitHappy 0.45s var(--ease) 2; }
@keyframes bitHappy { 50% { transform: translateY(-8px) rotate(-4deg); } }
.mc-bubble { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; border-bottom-left-radius: 5px; padding: 16px 20px; box-shadow: var(--sh-sm); flex: 1; }
.mc-bubble p { font-size: 1rem; }
.mc-phase { text-align: center; padding: 40px 0 10px; }
.mc-phase-label { font-family: var(--mono); font-size: 0.7rem; color: var(--green-ink); margin-bottom: 12px; display: block; }
.mc-phase-title { font-size: clamp(1.5rem, 4vw, 2.2rem); }
.mc-next { align-self: center; min-width: 220px; margin-top: 6px; }
.mc-options { display: flex; flex-direction: column; gap: 10px; }
.mc-opt { text-align: left; font-family: var(--sans); font-size: 0.96rem; color: var(--ink); background: var(--surface); border: 1.5px solid var(--line); border-radius: 14px; padding: 15px 18px; cursor: pointer; transition: border-color 0.25s, transform 0.3s var(--ease); }
.mc-opt:hover:not(:disabled) { border-color: var(--green); transform: translateY(-1px); }
.mc-opt.is-right { border-color: var(--green); background: var(--green-soft); font-weight: 600; }
.mc-opt.is-wrong { border-color: #f2b8ad; background: #fdf1ee; color: var(--faint); }
.mc-opt:disabled { cursor: default; }
.mc-match { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.mc-col { display: flex; flex-direction: column; gap: 10px; }
.mc-card { font-family: var(--sans); font-size: 0.88rem; color: var(--ink); text-align: left; background: var(--surface); border: 1.5px solid var(--line); border-radius: 14px; padding: 13px 15px; cursor: pointer; min-height: 62px; transition: border-color 0.25s, background 0.25s, transform 0.3s var(--ease), opacity 0.3s; }
.mc-card:hover:not(.is-locked) { border-color: var(--green); }
.mc-card.is-selected { border-color: var(--green); background: var(--green-soft); transform: scale(1.02); }
.mc-card.is-locked { border-color: var(--green); background: var(--green-soft); color: var(--green-ink); opacity: 0.75; cursor: default; }
.mc-card.is-shake { animation: mcShake 0.35s; }
@keyframes mcShake { 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }
.mc-hint { font-family: var(--mono); font-size: 0.66rem; color: var(--faint); text-align: center; }
.mc-feedback { border-radius: 14px; padding: 14px 18px; font-size: 0.95rem; animation: mcIn 0.35s var(--ease); }
.mc-feedback.is-good { background: var(--green-soft); border: 1px solid rgba(13, 168, 101, 0.35); color: #08663f; }
.mc-feedback.is-good b { color: var(--green-ink); }
.mc-feedback.is-soft { background: #fdf6ee; border: 1px solid #f2ddc4; color: #8a6432; }
.mc-xp-pop { position: absolute; top: -6px; right: 0; font-family: var(--mono); font-size: 0.74rem; color: var(--green-ink); font-weight: 600; animation: xpPop 1.1s var(--ease) forwards; }
@keyframes xpPop { 0% { opacity: 0; transform: translateY(8px); } 25% { opacity: 1; } 100% { opacity: 0; transform: translateY(-22px); } }
.mc-end { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 14px; padding: 20px 0; }
.mc-end-bit { width: 96px; height: 96px; animation: bitHappy 0.6s var(--ease) 3; }
.mc-end h2 { font-size: clamp(1.5rem, 4vw, 2.2rem); }
.mc-end-xp { font-family: var(--mono); font-size: 0.78rem; color: var(--green-ink); background: var(--green-soft); border-radius: 100px; padding: 6px 18px; }
.mc-end-sub { color: var(--dim); margin-top: 8px; }
.mc-learned { list-style: none; text-align: left; display: grid; gap: 9px; max-width: 460px; }
.mc-learned li { padding-left: 26px; position: relative; font-size: 0.94rem; }
.mc-learned li::before { content: "✓"; position: absolute; left: 0; color: var(--green-ink); font-weight: 700; }
.mc-end-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 12px; }
.mc-redo { background: none; border: 0; cursor: pointer; font-family: var(--mono); font-size: 0.7rem; color: var(--faint); margin-top: 6px; }
.mc-redo:hover { color: var(--green-ink); }
.mc-confetti { position: absolute; top: -20px; width: 9px; height: 14px; border-radius: 2px; z-index: 5; animation: confettiFall linear forwards; }
@keyframes confettiFall { to { transform: translateY(80vh) rotate(540deg); opacity: 0; } }

/* botões legados do minicurso.js */
.btn-primary { background: var(--dark); border-color: var(--dark); color: #fff; }
.btn-primary:hover { background: #1b2733; transform: translateY(-2px); }
.btn-ghost { background: var(--surface); color: var(--ink); }
.btn-ghost:hover { border-color: var(--green); color: var(--green-ink); }

/* ---------- footer ---------- */

footer { padding: 40px 0 90px; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-top: 54px; margin-top: 0; }
.foot-desc { color: var(--dim); font-size: 0.9rem; max-width: 300px; margin-top: 14px; }
.foot-col { display: flex; flex-direction: column; gap: 9px; align-items: flex-start; }
.foot-col b { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); margin-bottom: 6px; }
.foot-col a { color: var(--dim); font-size: 0.9rem; }
.foot-col a:hover { color: var(--green-ink); }
.foot-base { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; border-top: 1px solid var(--line); margin-top: 46px; padding-top: 22px; font-family: var(--mono); font-size: 0.68rem; color: var(--faint); }
.foot-base .on { color: var(--green-ink); }
.foot-base .on::before { content: "● "; color: var(--green-vivid); }

/* ---------- responsivo ---------- */

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .svcs-3 { grid-template-columns: 1fr; }
  .os-body { grid-template-columns: 1fr; }
  .os-side { border-top: 1px solid var(--line); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .apps, .courses { grid-template-columns: 1fr 1fr; }
  .svcs { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 26px; }
  .duo { grid-template-columns: 1fr; }
  .news-list { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .section { padding: 76px 0; }
  .hero { padding-top: 120px; }
  .stats, .apps, .courses, .kcards { grid-template-columns: 1fr; }
  .nav { position: fixed; inset: 0; background: rgba(247, 249, 250, 0.98); backdrop-filter: blur(12px); flex-direction: column; justify-content: center; align-items: center; gap: 30px; opacity: 0; pointer-events: none; transition: opacity 0.3s; }
  .nav.is-open { opacity: 1; pointer-events: auto; }
  .nav a { font-size: 1.35rem; font-family: var(--disp); }
  .burger { display: block; position: relative; z-index: 110; }
  .topbar .btn { display: none; }
  .mc-card { font-size: 0.82rem; padding: 11px 12px; }
  .mc-next { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
}