/* =====================================================================
   CIÊNCIA NO ENSINO MÉDIO — Design System "Dark Neon Futurista"
   Autoria visual: refatoração moderna (2026)
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700;800&display=swap');

/* ----------------------------- TOKENS ------------------------------ */
:root{
  --bg:        #06060f;
  --bg-2:      #0a0a18;
  --bg-3:      #0f0f22;
  --surface:   rgba(255,255,255,.045);
  --surface-2: rgba(255,255,255,.07);
  --stroke:    rgba(255,255,255,.10);
  --stroke-2:  rgba(255,255,255,.18);

  --text:      #eef1ff;
  --muted:     #9aa0c6;
  --muted-2:   #6f76a3;

  --cyan:   #25e7ff;
  --purple: #a96bff;
  --pink:   #ff3ea5;
  --green:  #3df5c4;
  --amber:  #ffc24b;

  --grad-main: linear-gradient(120deg,#a96bff 0%,#25e7ff 50%,#3df5c4 100%);
  --grad-hot:  linear-gradient(120deg,#ff3ea5 0%,#a96bff 60%,#25e7ff 100%);
  --grad-cool: linear-gradient(120deg,#25e7ff 0%,#3df5c4 100%);

  --shadow-neon: 0 0 0 1px rgba(169,107,255,.18), 0 18px 50px -18px rgba(37,231,255,.45);
  --radius:   22px;
  --radius-sm:14px;
  --maxw: 1200px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ----------------------------- RESET ------------------------------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  overflow-x:hidden;
  position:relative;
  min-height:100vh;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul{list-style:none}
::selection{background:rgba(169,107,255,.45);color:#fff}

h1,h2,h3,h4,.font-display{font-family:'Space Grotesk',sans-serif;font-weight:700;line-height:1.1;letter-spacing:-.01em}

/* --------------------------- BACKGROUND ---------------------------- */
.bg-layer{position:fixed;inset:0;z-index:-3;pointer-events:none;overflow:hidden}
.bg-layer::before{ /* base radial */
  content:"";position:absolute;inset:-20%;
  background:
    radial-gradient(46% 38% at 18% 12%, rgba(169,107,255,.30), transparent 60%),
    radial-gradient(40% 36% at 85% 18%, rgba(37,231,255,.26), transparent 60%),
    radial-gradient(50% 50% at 75% 92%, rgba(255,62,165,.22), transparent 60%),
    radial-gradient(46% 42% at 12% 88%, rgba(61,245,196,.18), transparent 60%);
  filter:blur(20px);
  animation:auroraShift 22s ease-in-out infinite alternate;
}
.bg-grid{position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:54px 54px;
  mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
  animation:gridDrift 40s linear infinite;
}
#particles{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.6}

@keyframes auroraShift{
  0%{transform:translate3d(-4%,-2%,0) rotate(0deg) scale(1.05)}
  50%{transform:translate3d(4%,3%,0) rotate(8deg) scale(1.15)}
  100%{transform:translate3d(-2%,4%,0) rotate(-6deg) scale(1.08)}
}
@keyframes gridDrift{from{background-position:0 0}to{background-position:54px 108px}}

/* ----------------------------- LAYOUT ------------------------------ */
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:22px}
.section{padding:clamp(56px,9vw,120px) 0;position:relative}
.section-head{max-width:760px;margin:0 auto clamp(34px,5vw,60px);text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);
  padding:7px 15px;border-radius:999px;
  background:rgba(37,231,255,.08);border:1px solid rgba(37,231,255,.25);
  margin-bottom:18px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);animation:pulseDot 1.8s infinite}
@keyframes pulseDot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.6)}}
.section-title{font-size:clamp(1.9rem,4.6vw,3.2rem);margin-bottom:16px}
.section-sub{color:var(--muted);font-size:clamp(1rem,2vw,1.15rem)}

.gradient-text{
  background:var(--grad-main);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  background-size:220% 220%;animation:gradientText 7s ease infinite;
}
.gradient-text.hot{background-image:var(--grad-hot)}
@keyframes gradientText{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}

/* ----------------------------- NAVBAR ------------------------------ */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:all .4s var(--ease)}
.nav-inner{
  max-width:var(--maxw);margin-inline:auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 22px;
}
.nav.scrolled .nav-inner{
  margin-top:10px;border-radius:18px;
  background:rgba(10,10,24,.72);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border:1px solid var(--stroke);
  box-shadow:0 12px 40px -16px rgba(0,0,0,.7);
  padding:12px 22px;
}
.nav.scrolled{padding-inline:max(12px,calc((100vw - var(--maxw))/2))}
.brand{display:flex;align-items:center;gap:11px;font-family:'Space Grotesk';font-weight:700;font-size:1.06rem}
.brand .logo{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;flex:0 0 auto;
  background:var(--grad-main);box-shadow:0 0 22px rgba(169,107,255,.6);
  animation:spinSlow 14s linear infinite;
}
.brand .logo svg{width:22px;height:22px}
.brand-name{display:flex;flex-direction:column;line-height:1.1}
.brand-name b{font-weight:700;font-size:1.02rem}
.brand-name .sub{color:var(--muted);font-weight:500;font-size:.74rem;letter-spacing:.04em}
@keyframes spinSlow{to{transform:rotate(360deg)}}

.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  position:relative;padding:9px 14px;border-radius:11px;font-size:.93rem;font-weight:500;color:var(--muted);
  transition:color .25s,background .25s;
}
.nav-links a:hover{color:var(--text);background:var(--surface)}
.nav-links a.active{color:var(--text)}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--grad-main);box-shadow:0 0 10px var(--cyan);
}
.nav-cta{
  margin-left:8px;padding:10px 18px !important;border-radius:12px !important;
  background:var(--grad-main);color:#0a0a18 !important;font-weight:700 !important;
  box-shadow:0 8px 24px -8px rgba(37,231,255,.6);
}
.nav-cta:hover{filter:brightness(1.08);transform:translateY(-1px)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;background:var(--surface);border:1px solid var(--stroke)}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);margin:4px auto;border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ----------------------------- BUTTONS ----------------------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:14px;font-weight:600;font-size:.98rem;
  transition:transform .25s var(--ease),box-shadow .25s,filter .25s;will-change:transform;
}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--grad-main);color:#07070f;box-shadow:0 12px 34px -12px rgba(37,231,255,.65);font-weight:700}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 20px 44px -14px rgba(169,107,255,.8);filter:brightness(1.06)}
.btn-ghost{background:var(--surface);border:1px solid var(--stroke-2);color:var(--text)}
.btn-ghost:hover{background:var(--surface-2);transform:translateY(-3px);border-color:var(--cyan)}
.btn-shine{position:relative;overflow:hidden}
.btn-shine::after{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);
  transform:skewX(-20deg);transition:left .6s var(--ease);
}
.btn-shine:hover::after{left:130%}

/* ------------------------------ HERO ------------------------------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding-top:120px;padding-bottom:60px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;width:100%}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;margin-bottom:24px;
  padding:8px 16px;border-radius:999px;font-size:.84rem;font-weight:600;color:var(--text);
  background:var(--surface);border:1px solid var(--stroke-2);backdrop-filter:blur(8px);
}
.hero-badge .pill{font-size:.7rem;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--grad-hot);color:#07070f}
.hero h1{font-size:clamp(2.5rem,6.2vw,4.6rem);margin-bottom:22px}
.hero .lead{font-size:clamp(1.05rem,2.3vw,1.3rem);color:var(--muted);max-width:560px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-stats{display:flex;flex-wrap:wrap;gap:30px}
.hstat .num{font-family:'Space Grotesk';font-size:clamp(1.7rem,3.5vw,2.4rem);font-weight:700;line-height:1}
.hstat .lbl{font-size:.82rem;color:var(--muted);margin-top:4px}

/* hero visual */
.hero-visual{position:relative;height:480px}
.orb{position:absolute;border-radius:50%;filter:blur(2px);opacity:.85;mix-blend-mode:screen}
.orb.a{width:300px;height:300px;background:radial-gradient(circle at 30% 30%,#a96bff,transparent 70%);top:10px;left:30px;animation:floatA 9s ease-in-out infinite}
.orb.b{width:240px;height:240px;background:radial-gradient(circle at 30% 30%,#25e7ff,transparent 70%);bottom:20px;right:20px;animation:floatB 11s ease-in-out infinite}
.orb.c{width:180px;height:180px;background:radial-gradient(circle at 30% 30%,#ff3ea5,transparent 70%);top:50%;left:45%;animation:floatA 8s ease-in-out infinite reverse}
@keyframes floatA{0%,100%{transform:translate(0,0)}50%{transform:translate(20px,-26px)}}
@keyframes floatB{0%,100%{transform:translate(0,0)}50%{transform:translate(-24px,18px)}}

.hero-card{
  position:absolute;border-radius:18px;padding:16px 18px;min-width:190px;
  background:rgba(13,13,28,.7);backdrop-filter:blur(14px);border:1px solid var(--stroke-2);
  box-shadow:0 20px 50px -20px rgba(0,0,0,.8);
}
.hero-card .ico{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;margin-bottom:10px;background:var(--surface-2)}
.hero-card .ico svg{width:22px;height:22px}
.hero-card h4{font-size:.98rem}
.hero-card p{font-size:.8rem;color:var(--muted)}
.hero-card.one{top:30px;left:0;animation:floatY 6s ease-in-out infinite}
.hero-card.two{top:160px;right:0;animation:floatY 7s ease-in-out infinite .6s}
.hero-card.three{bottom:24px;left:60px;animation:floatY 6.5s ease-in-out infinite 1.2s}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}

.scroll-cue{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--muted-2);font-size:.74rem;letter-spacing:.2em;text-transform:uppercase}
.scroll-cue .mouse{width:24px;height:38px;border:2px solid var(--stroke-2);border-radius:14px;position:relative}
.scroll-cue .mouse::after{content:"";position:absolute;top:7px;left:50%;width:4px;height:7px;background:var(--cyan);border-radius:2px;transform:translateX(-50%);animation:scrollWheel 1.6s infinite}
@keyframes scrollWheel{0%{opacity:1;top:7px}70%{opacity:0;top:18px}100%{opacity:0}}

/* --------------------------- MARQUEE ------------------------------- */
.marquee{overflow:hidden;border-top:1px solid var(--stroke);border-bottom:1px solid var(--stroke);background:rgba(255,255,255,.02);padding:18px 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee-track{display:flex;gap:48px;width:max-content;animation:marquee 28s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-item{display:flex;align-items:center;gap:12px;font-family:'Space Grotesk';font-weight:600;font-size:1.05rem;color:var(--muted);white-space:nowrap}
.marquee-item .d{width:8px;height:8px;border-radius:50%;background:var(--grad-main)}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ----------------------------- CARDS ------------------------------- */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{
  position:relative;border-radius:var(--radius);padding:28px;
  background:var(--surface);border:1px solid var(--stroke);
  backdrop-filter:blur(8px);
  transition:transform .35s var(--ease),border-color .35s,box-shadow .35s;
  overflow:hidden;
}
.card::before{ /* gradient glow border on hover */
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:var(--grad-main);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  opacity:0;transition:opacity .35s;
}
.card:hover{transform:translateY(-7px);box-shadow:var(--shadow-neon)}
.card:hover::before{opacity:1}
.card .card-ico{
  width:54px;height:54px;border-radius:15px;display:grid;place-items:center;margin-bottom:18px;
  background:var(--surface-2);border:1px solid var(--stroke);
}
.card .card-ico svg{width:28px;height:28px}
.card h3{font-size:1.25rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.96rem}
.card .num-badge{position:absolute;top:20px;right:22px;font-family:'Space Grotesk';font-weight:700;font-size:2.4rem;color:rgba(255,255,255,.06)}

.tilt{transform-style:preserve-3d;will-change:transform}
.tilt>*{transform:translateZ(30px)}

/* feature icon colour variants */
.i-cyan{color:var(--cyan)} .i-purple{color:var(--purple)} .i-pink{color:var(--pink)} .i-green{color:var(--green)} .i-amber{color:var(--amber)}
.bg-cyan{background:rgba(37,231,255,.12)!important;border-color:rgba(37,231,255,.3)!important}
.bg-purple{background:rgba(169,107,255,.12)!important;border-color:rgba(169,107,255,.3)!important}
.bg-pink{background:rgba(255,62,165,.12)!important;border-color:rgba(255,62,165,.3)!important}
.bg-green{background:rgba(61,245,196,.12)!important;border-color:rgba(61,245,196,.3)!important}
.bg-amber{background:rgba(255,194,75,.12)!important;border-color:rgba(255,194,75,.3)!important}

/* ----------------------------- STATS ------------------------------- */
.stats-band{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-box{text-align:center;padding:30px 18px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--stroke)}
.stat-box .num{font-family:'Space Grotesk';font-size:clamp(2rem,5vw,3rem);font-weight:700;line-height:1}
.stat-box .lbl{color:var(--muted);font-size:.9rem;margin-top:8px}

/* ----------------------- STEPS / TIMELINE -------------------------- */
.timeline{position:relative;max-width:840px;margin-inline:auto}
.timeline::before{content:"";position:absolute;left:27px;top:10px;bottom:10px;width:2px;background:linear-gradient(var(--purple),var(--cyan),var(--green))}
.tl-item{position:relative;padding:0 0 34px 80px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:absolute;left:0;top:0;width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
  font-family:'Space Grotesk';font-weight:700;font-size:1.4rem;color:#07070f;
  background:var(--grad-main);box-shadow:0 0 24px -4px rgba(37,231,255,.6);z-index:1;
}
.tl-card{background:var(--surface);border:1px solid var(--stroke);border-radius:var(--radius-sm);padding:22px 24px;transition:.3s}
.tl-card:hover{border-color:var(--cyan);transform:translateX(6px)}
.tl-card h3{font-size:1.15rem;margin-bottom:8px}
.tl-card p{color:var(--muted);font-size:.95rem}
.tl-card a{color:var(--cyan);font-weight:600;border-bottom:1px dashed rgba(37,231,255,.4)}

/* --------------------------- ACCORDION ----------------------------- */
.acc{border:1px solid var(--stroke);border-radius:var(--radius-sm);overflow:hidden;background:rgba(255,255,255,.02);margin-top:16px}
.acc-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 20px;font-weight:600;font-size:.98rem;width:100%;text-align:left;transition:background .25s}
.acc-head:hover{background:var(--surface)}
.acc-head .chev{width:22px;height:22px;flex:0 0 auto;transition:transform .35s var(--ease);color:var(--cyan)}
.acc.open .acc-head .chev{transform:rotate(180deg)}
.acc-body{max-height:0;overflow:hidden;transition:max-height .45s var(--ease)}
.acc-body-inner{padding:4px 20px 20px}
.step-list{counter-reset:step}
.step-list li{position:relative;padding:10px 0 10px 44px;color:var(--muted);border-top:1px dashed var(--stroke)}
.step-list li:first-child{border-top:none}
.step-list li::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:0;top:9px;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
  font-family:'Space Grotesk';font-weight:700;font-size:.82rem;color:var(--cyan);
  background:rgba(37,231,255,.1);border:1px solid rgba(37,231,255,.3);
}
.step-list li b{color:var(--text)}

/* ------------------------- TOPIC NAV ------------------------------- */
.topic-grid{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:40px}
.topic-chip{
  display:inline-flex;align-items:center;gap:9px;padding:11px 18px;border-radius:999px;font-weight:600;font-size:.93rem;
  background:var(--surface);border:1px solid var(--stroke);color:var(--muted);
  transition:all .28s var(--ease);
}
.topic-chip svg{width:17px;height:17px}
.topic-chip:hover{color:var(--text);border-color:var(--stroke-2);transform:translateY(-2px)}
.topic-chip.active{color:#07070f;background:var(--grad-main);border-color:transparent;box-shadow:0 8px 22px -8px rgba(37,231,255,.6)}
.topic-chip.active svg{color:#07070f}

/* dimming when filtering */
.platform-card.dimmed{opacity:.28;filter:grayscale(.6) blur(1px);transform:scale(.98)}
.platform-card{transition:transform .4s var(--ease),opacity .4s,filter .4s,border-color .35s,box-shadow .35s}

/* ----------------------- PLATFORM CARDS ---------------------------- */
.platforms{display:grid;gap:26px}
.platform-card{
  position:relative;border-radius:var(--radius);overflow:hidden;
  background:var(--surface);border:1px solid var(--stroke);
  display:grid;grid-template-columns:300px 1fr;
}
.platform-card:hover{box-shadow:var(--shadow-neon)}
.pc-side{padding:30px;position:relative;display:flex;flex-direction:column;justify-content:space-between;border-right:1px solid var(--stroke);overflow:hidden}
.pc-side::before{content:"";position:absolute;inset:0;opacity:.16;z-index:0}
.pc-side.g1::before{background:radial-gradient(circle at 30% 20%,#25e7ff,transparent 65%)}
.pc-side.g2::before{background:radial-gradient(circle at 30% 20%,#3df5c4,transparent 65%)}
.pc-side.g3::before{background:radial-gradient(circle at 30% 20%,#ffc24b,transparent 65%)}
.pc-side.g4::before{background:radial-gradient(circle at 30% 20%,#a96bff,transparent 65%)}
.pc-side.g5::before{background:radial-gradient(circle at 30% 20%,#ff3ea5,transparent 65%)}
.pc-logo{position:relative;z-index:1;width:62px;height:62px;border-radius:16px;display:grid;place-items:center;font-family:'Space Grotesk';font-weight:700;font-size:1.5rem;color:#07070f;margin-bottom:18px}
.pc-logo svg{width:32px;height:32px}
.pc-side h3{position:relative;z-index:1;font-size:1.35rem;margin-bottom:6px}
.pc-side .tagline{position:relative;z-index:1;color:var(--muted);font-size:.9rem;margin-bottom:18px}
.pc-meta{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:.74rem;font-weight:600;padding:5px 11px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid var(--stroke);color:var(--text)}
.chip.free{color:var(--green);border-color:rgba(61,245,196,.35);background:rgba(61,245,196,.1)}
.pc-body{padding:30px}
.pc-body>p.desc{color:var(--muted);margin-bottom:18px}
.pc-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.pc-tags .tag{font-size:.78rem;padding:6px 12px;border-radius:9px;background:var(--surface-2);border:1px solid var(--stroke);color:var(--muted)}
.pc-courses{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:8px}
.course-pill{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:11px 14px;border-radius:11px;background:rgba(255,255,255,.03);border:1px solid var(--stroke);font-size:.86rem;transition:.25s}
.course-pill:hover{border-color:var(--cyan);background:var(--surface);transform:translateX(3px)}
.course-pill .h{color:var(--muted-2);font-size:.74rem;font-weight:600;white-space:nowrap}
.pc-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}

/* ---------------------------- QUIZ --------------------------------- */
.quiz-wrap{max-width:760px;margin-inline:auto}
.quiz-card{
  position:relative;border-radius:var(--radius);padding:clamp(26px,4vw,44px);
  background:rgba(13,13,28,.6);backdrop-filter:blur(14px);border:1px solid var(--stroke-2);
  box-shadow:0 30px 70px -30px rgba(0,0,0,.8);overflow:hidden;
}
.quiz-progress{height:6px;border-radius:999px;background:var(--surface-2);overflow:hidden;margin-bottom:26px}
.quiz-progress span{display:block;height:100%;width:0;background:var(--grad-main);border-radius:999px;transition:width .5s var(--ease)}
.quiz-step{display:none;animation:fadeUp .5s var(--ease) both}
.quiz-step.active{display:block}
.quiz-q-num{font-size:.8rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);margin-bottom:10px}
.quiz-q{font-family:'Space Grotesk';font-size:clamp(1.3rem,3vw,1.8rem);font-weight:700;margin-bottom:22px}
.quiz-opts{display:grid;gap:12px}
.quiz-opt{
  display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:14px;text-align:left;
  background:var(--surface);border:1px solid var(--stroke);transition:all .25s var(--ease);
}
.quiz-opt:hover{border-color:var(--cyan);background:var(--surface-2);transform:translateX(5px)}
.quiz-opt .emoji{font-size:1.5rem;width:46px;height:46px;display:grid;place-items:center;border-radius:12px;background:var(--surface-2);flex:0 0 auto}
.quiz-opt .t b{display:block;font-size:1rem}
.quiz-opt .t span{font-size:.84rem;color:var(--muted)}
.quiz-result{display:none;text-align:center;animation:fadeUp .5s var(--ease) both}
.quiz-result.active{display:block}
.quiz-result .big{font-size:3rem;margin-bottom:6px}
.result-cards{display:grid;gap:14px;margin:24px 0;text-align:left}
.result-platform{display:flex;align-items:center;gap:16px;padding:16px;border-radius:14px;background:var(--surface);border:1px solid var(--stroke)}
.result-platform .rp-logo{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;font-family:'Space Grotesk';font-weight:700;color:#07070f;flex:0 0 auto}
.result-platform h4{font-size:1rem}
.result-platform p{font-size:.84rem;color:var(--muted)}
.result-platform .go{margin-left:auto;color:var(--cyan);font-weight:600;font-size:.86rem;white-space:nowrap}
.quiz-back{margin-top:14px;color:var(--muted);font-size:.88rem;font-weight:500}
.quiz-back:hover{color:var(--text)}

/* ------------------------ TESTIMONIAL ------------------------------ */
.qa-list{max-width:820px;margin-inline:auto;display:grid;gap:16px}
.qa{border:1px solid var(--stroke);border-radius:var(--radius-sm);padding:22px 26px;background:var(--surface);transition:.3s}
.qa:hover{border-color:var(--purple)}
.qa .q{display:flex;gap:12px;font-weight:600;font-size:1.02rem;margin-bottom:10px}
.qa .q .mark{color:var(--purple);font-family:'Space Grotesk';font-weight:700;flex:0 0 auto}
.qa .a{color:var(--muted);padding-left:28px;position:relative}
.qa .a .mark{position:absolute;left:0;color:var(--cyan);font-family:'Space Grotesk';font-weight:700}
.profile{display:flex;align-items:center;gap:18px;max-width:820px;margin:0 auto 32px;padding:22px 26px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--stroke)}
.profile .avatar{width:74px;height:74px;border-radius:20px;display:grid;place-items:center;font-family:'Space Grotesk';font-weight:700;font-size:1.8rem;color:#07070f;background:var(--grad-hot);flex:0 0 auto;box-shadow:0 0 26px -6px rgba(255,62,165,.6);overflow:hidden}
.profile .avatar img{width:100%;height:100%;object-fit:cover;border-radius:inherit;display:block}
.profile h3{font-size:1.3rem}
.profile p{color:var(--muted);font-size:.92rem}

/* prose for content pages */
.prose{max-width:820px;margin-inline:auto}
.prose .block{margin-bottom:18px;padding:24px 28px;border-radius:var(--radius-sm);background:var(--surface);border:1px solid var(--stroke);transition:.3s}
.prose .block:hover{border-color:var(--stroke-2)}
.prose .block h3{font-size:1.2rem;margin-bottom:10px;display:flex;align-items:center;gap:10px}
.prose .block h3 .b-ico{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--surface-2);flex:0 0 auto}
.prose .block h3 .b-ico svg{width:19px;height:19px}
.prose .block p{color:var(--muted)}
.prose .block p+p{margin-top:10px}
.prose .block b{color:var(--text)}

/* ------------------------------ CTA -------------------------------- */
.cta-band{position:relative;border-radius:calc(var(--radius) + 6px);padding:clamp(40px,6vw,72px);text-align:center;overflow:hidden;border:1px solid var(--stroke-2);background:rgba(13,13,28,.5)}
.cta-band::before{content:"";position:absolute;inset:0;background:var(--grad-main);opacity:.12;animation:gradientText 8s ease infinite;background-size:200% 200%}
.cta-band>*{position:relative;z-index:1}
.cta-band h2{font-size:clamp(1.8rem,4.5vw,3rem);margin-bottom:14px}
.cta-band p{color:var(--muted);max-width:540px;margin:0 auto 28px}

/* ----------------------------- FOOTER ------------------------------ */
.footer{border-top:1px solid var(--stroke);padding:56px 0 30px;margin-top:40px;position:relative}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:36px}
.footer .brand{margin-bottom:14px}
.footer p.about{color:var(--muted);font-size:.92rem;max-width:340px}
.footer h5{font-family:'Space Grotesk';font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);margin-bottom:16px}
.footer ul li{margin-bottom:10px}
.footer ul a{color:var(--muted);font-size:.93rem;transition:.25s}
.footer ul a:hover{color:var(--cyan);padding-left:4px}
.socials{display:flex;gap:12px;margin-top:8px}
.socials a{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--surface);border:1px solid var(--stroke);transition:.3s}
.socials a:hover{transform:translateY(-3px);border-color:var(--cyan);background:var(--surface-2)}
.socials svg{width:20px;height:20px}
.footer-bottom{border-top:1px solid var(--stroke);padding-top:22px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;color:var(--muted-2);font-size:.84rem}

/* --------------------- UTILITIES / FX ------------------------------ */
.scroll-prog{position:fixed;top:0;left:0;height:3px;width:0;z-index:200;background:var(--grad-main);box-shadow:0 0 10px var(--cyan)}
.to-top{position:fixed;right:22px;bottom:22px;width:50px;height:50px;border-radius:14px;display:grid;place-items:center;z-index:90;background:rgba(13,13,28,.8);backdrop-filter:blur(10px);border:1px solid var(--stroke-2);opacity:0;transform:translateY(20px);pointer-events:none;transition:.35s var(--ease)}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{border-color:var(--cyan);transform:translateY(-3px)}
.to-top svg{width:22px;height:22px;color:var(--cyan)}

.cursor-glow{position:fixed;top:0;left:0;width:32px;height:32px;border-radius:50%;pointer-events:none;z-index:9999;background:radial-gradient(circle,rgba(37,231,255,.55),transparent 70%);transform:translate(-50%,-50%);transition:width .25s,height .25s,opacity .25s;mix-blend-mode:screen;will-change:transform}
.cursor-glow.big{width:60px;height:60px}

/* reveal */
.js .reveal{opacity:0;transform:translateY(34px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}.reveal.d5{transition-delay:.4s}
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@keyframes scaleIn{from{opacity:0;transform:scale(.9)}to{opacity:1;transform:none}}

/* ------------------------- RESPONSIVE ------------------------------ */
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-visual{height:360px;order:-1}
  .footer-grid{grid-template-columns:1fr 1fr}
  .platform-card{grid-template-columns:1fr}
  .pc-side{border-right:none;border-bottom:1px solid var(--stroke)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stats-band{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .nav-links{
    position:fixed;inset:74px 14px auto 14px;flex-direction:column;align-items:stretch;gap:6px;
    padding:16px;border-radius:18px;background:rgba(10,10,24,.96);backdrop-filter:blur(18px);border:1px solid var(--stroke-2);
    transform:translateY(-12px) scale(.98);opacity:0;pointer-events:none;transition:.3s var(--ease);
  }
  .nav-links.open{transform:none;opacity:1;pointer-events:auto}
  .nav-links a{padding:13px 16px}
  .nav-cta{margin-left:0}
  .nav-toggle{display:block}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .pc-courses{grid-template-columns:1fr}
  .cursor-glow{display:none}
}
@media(max-width:480px){
  .grid-4,.stats-band{grid-template-columns:1fr}
  .hero-stats{gap:20px}
  .timeline::before{left:21px}
  .tl-item{padding-left:64px}
  .tl-num{width:44px;height:44px;font-size:1.1rem}
}

@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.15s!important;scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ================== CATÁLOGO DE CURSOS (planilha) ================== */
.catalog-tools{display:flex;flex-direction:column;gap:18px;margin-bottom:30px}
.search-box{position:relative;max-width:520px;margin-inline:auto;width:100%}
.search-box svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:19px;height:19px;color:var(--muted-2);pointer-events:none}
.search-box input{
  width:100%;padding:15px 18px 15px 46px;border-radius:999px;
  background:var(--surface);border:1px solid var(--stroke);color:var(--text);
  font-family:inherit;font-size:.98rem;outline:none;transition:border-color .3s,box-shadow .3s,background .3s;
}
.search-box input::placeholder{color:var(--muted-2)}
.search-box input:focus{border-color:var(--cyan);background:var(--surface-2);box-shadow:0 0 0 4px rgba(37,231,255,.14),0 12px 30px -14px rgba(37,231,255,.5)}
.catalog-count{text-align:center;color:var(--muted-2);font-size:.86rem;letter-spacing:.06em;margin-bottom:22px}
.catalog-count b{color:var(--cyan);font-family:'Space Grotesk'}
.catalog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.course-card{
  position:relative;display:flex;flex-direction:column;gap:12px;
  padding:20px 20px 18px;border-radius:var(--radius-sm);
  background:var(--surface);border:1px solid var(--stroke);
  transition:transform .35s var(--ease),border-color .3s,box-shadow .35s,opacity .3s;
  animation:cardPop .5s var(--ease) backwards;
  overflow:hidden;
}
.course-card::after{content:"";position:absolute;inset:0;background:radial-gradient(120% 90% at 100% 0%,rgba(169,107,255,.12),transparent 55%);opacity:0;transition:opacity .35s;pointer-events:none}
.course-card:hover{transform:translateY(-6px);border-color:var(--stroke-2);box-shadow:var(--shadow-neon)}
.course-card:hover::after{opacity:1}
@keyframes cardPop{from{opacity:0;transform:translateY(22px) scale(.96)}to{opacity:1;transform:none}}
.cc-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.cc-cat{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.cc-name{font-family:'Space Grotesk';font-weight:600;font-size:1.02rem;line-height:1.35;flex:1}
.cc-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto}
.pbadge{font-size:.7rem;font-weight:700;padding:4px 10px;border-radius:999px;border:1px solid;white-space:nowrap}
.pb-evg{color:#25e7ff;border-color:rgba(37,231,255,.4);background:rgba(37,231,255,.09)}
.pb-brad{color:#ff3ea5;border-color:rgba(255,62,165,.4);background:rgba(255,62,165,.09)}
.pb-khan{color:#a96bff;border-color:rgba(169,107,255,.4);background:rgba(169,107,255,.10)}
.pb-cate{color:#ffc24b;border-color:rgba(255,194,75,.4);background:rgba(255,194,75,.09)}
.pb-senai{color:#ff6b6b;border-color:rgba(255,107,107,.4);background:rgba(255,107,107,.09)}
.pb-duo{color:#3df5c4;border-color:rgba(61,245,196,.4);background:rgba(61,245,196,.09)}
.pb-outro{color:var(--muted);border-color:var(--stroke-2);background:rgba(255,255,255,.05)}
.cc-go{display:inline-flex;align-items:center;gap:6px;font-size:.84rem;font-weight:700;color:var(--cyan);transition:gap .25s}
.course-card:hover .cc-go{gap:10px}
.catalog-empty{grid-column:1/-1;text-align:center;padding:50px 20px;color:var(--muted);border:1px dashed var(--stroke-2);border-radius:var(--radius-sm)}
.catalog-empty .big{font-size:2rem;margin-bottom:10px}

/* ======================= PÁGINA UFABC ============================== */
.uf-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:14px;align-items:stretch;max-width:1050px;margin-inline:auto}
.uf-step{
  position:relative;padding:26px 22px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--stroke);text-align:center;
  transition:transform .35s var(--ease),border-color .3s,box-shadow .35s;
}
.uf-step:hover{transform:translateY(-6px);box-shadow:var(--shadow-neon);border-color:var(--stroke-2)}
.uf-step .ico{width:52px;height:52px;border-radius:15px;display:grid;place-items:center;margin:0 auto 14px;font-size:1.5rem;background:var(--surface-2);border:1px solid var(--stroke)}
.uf-step h3{font-size:1.08rem;margin-bottom:8px}
.uf-step p{color:var(--muted);font-size:.9rem}
.uf-step .stage{position:absolute;top:14px;left:16px;font-size:.68rem;font-weight:700;letter-spacing:.14em;color:var(--muted-2);text-transform:uppercase}
.uf-arrow{display:grid;place-items:center;color:var(--cyan);font-size:1.5rem}
.uf-arrow svg{width:30px;height:30px;animation:arrowPulse 1.8s ease-in-out infinite}
@keyframes arrowPulse{0%,100%{transform:translateX(0);opacity:.55}50%{transform:translateX(7px);opacity:1}}
.uf-note{
  max-width:820px;margin:34px auto 0;padding:20px 24px;border-radius:var(--radius-sm);
  background:rgba(255,194,75,.07);border:1px solid rgba(255,194,75,.35);
  color:var(--muted);font-size:.98rem;display:flex;gap:14px;align-items:flex-start;
}
.uf-note .em{font-size:1.4rem;line-height:1}
.uf-note b{color:var(--amber)}
.bi-tabs{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:28px}
.bi-tab{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  padding:14px 30px;border-radius:16px;border:1px solid var(--stroke);
  background:var(--surface);font-family:'Space Grotesk';font-weight:700;font-size:1.05rem;color:var(--muted);
  transition:all .3s var(--ease);
}
.bi-tab small{font-weight:500;font-size:.74rem;font-family:'Inter';letter-spacing:.02em}
.bi-tab:hover{color:var(--text);transform:translateY(-2px);border-color:var(--stroke-2)}
.bi-tab.active{color:#07070f;background:var(--grad-main);border-color:transparent;box-shadow:0 14px 34px -12px rgba(37,231,255,.6)}
.bi-tab.active.hot{background:var(--grad-hot);box-shadow:0 14px 34px -12px rgba(255,62,165,.55)}
.bi-panel{display:none;animation:panelIn .5s var(--ease)}
.bi-panel.active{display:block}
@keyframes panelIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.uf-course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:1050px;margin-inline:auto}
.uf-course{
  display:flex;align-items:center;gap:12px;padding:15px 18px;border-radius:13px;
  background:var(--surface);border:1px solid var(--stroke);font-size:.95rem;font-weight:600;
  transition:transform .3s var(--ease),border-color .3s,background .3s;
  animation:cardPop .45s var(--ease) backwards;
}
.uf-course:hover{transform:translateX(5px);border-color:var(--cyan);background:var(--surface-2)}
.uf-course .em{font-size:1.15rem}
.uf-course .yr{margin-left:auto;font-size:.72rem;font-weight:700;color:var(--muted-2);white-space:nowrap}
.uf-group-title{max-width:1050px;margin:26px auto 12px;font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.uf-group-title:first-child{margin-top:0}

@media (max-width:920px){
  .catalog-grid{grid-template-columns:repeat(2,1fr)}
  .uf-flow{grid-template-columns:1fr}
  .uf-arrow{padding:4px 0;transform:rotate(90deg)}
  .uf-course-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:600px){
  .catalog-grid{grid-template-columns:1fr}
  .uf-course-grid{grid-template-columns:1fr}
}