/* ============================================================
   TuneBox - tunebox.css
   Identidade do wireframe aprovado: tema escuro, gradiente
   spectrum (verde -> azul -> roxo), cantos arredondados, glow.
   ============================================================ */
:root{
  --bg:#0A0E1A; --s1:#15192A; --s2:#1F2438; --s3:#272d45;
  --txt:#F0F2F8; --txt2:#8A91A8; --txt3:#4A5070;
  --green:#00E5C7; --blue:#3B82F6; --purple:#8B5CF6;
  --warn:#F59E0B; --err:#F43F5E;
  --r:8px; --rl:12px; --rs:4px;
  --display:'Sora',system-ui,sans-serif;
  --body:'Manrope',system-ui,sans-serif;
  --wrap:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font-family:var(--body);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--display);line-height:1.15;letter-spacing:-.01em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.muted{color:var(--txt2)} .tiny{font-size:12.5px} .center{text-align:center}
.spectrum-txt{background:linear-gradient(90deg,var(--green),var(--blue),var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- header ---------- */
header.site{position:sticky;top:0;z-index:100;background:rgba(10,14,26,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--s2)}
header.site .row{display:flex;align-items:center;gap:22px;padding:14px 24px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:800;font-size:19px;letter-spacing:-.02em}
.logo .dot{width:26px;height:26px;border-radius:7px;background:linear-gradient(135deg,var(--green),var(--blue),var(--purple));box-shadow:0 0 16px rgba(0,229,199,.45)}
nav.main{display:flex;gap:4px;margin-left:8px}
nav.main a{padding:8px 13px;border-radius:var(--r);color:var(--txt2);font-weight:500;font-size:14px}
nav.main a:hover{color:var(--txt);background:var(--s1)}
nav.main a.active{color:var(--txt)}
.spacer{flex:1}
.navtoggle{display:none;background:var(--s1);border:1px solid var(--s2);color:var(--txt);font-size:18px;width:42px;height:42px;border-radius:var(--r);cursor:pointer}

/* ---------- botoes ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r);
  font-family:var(--display);font-weight:600;font-size:14px;border:none;cursor:pointer;transition:.15s;white-space:nowrap}
.btn.sm{height:34px;padding:0 14px;font-size:13px}
.btn.lg{height:52px;padding:0 28px;font-size:16px}
.btn-primary{background:linear-gradient(120deg,var(--green),var(--blue));color:#04121b;box-shadow:0 6px 22px rgba(59,130,246,.28)}
.btn-primary:hover{filter:brightness(1.08)}
.btn-ghost{background:var(--s1);color:var(--txt);border:1px solid var(--s2)}
.btn-ghost:hover{background:var(--s2)}
.btn-outline{background:transparent;color:var(--txt);border:1px solid var(--s3)}
.btn-outline:hover{border-color:var(--green);color:var(--green)}

/* ---------- superficies ---------- */
.card{background:var(--s1);border:1px solid var(--s2);border-radius:var(--rl);padding:22px}
.card.s2{background:var(--s2)}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:1fr 1fr}.g3{grid-template-columns:repeat(3,1fr)}
@media(max-width:860px){.g2,.g3{grid-template-columns:1fr}}
section{padding:54px 0}

.badge{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:600;padding:3px 9px;border-radius:99px;font-family:var(--display);letter-spacing:.03em}
.badge.green{background:rgba(0,229,199,.13);color:var(--green)}
.badge.blue{background:rgba(59,130,246,.14);color:var(--blue)}
.badge.purple{background:rgba(139,92,246,.14);color:var(--purple)}
.badge.gray{background:var(--s2);color:var(--txt2)}
.sect-tag{font-family:var(--display);font-weight:700;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--green)}
.divider{height:1px;background:var(--s2);margin:32px 0}

.ph{border:1px dashed var(--s3);border-radius:var(--r);display:flex;align-items:center;justify-content:center;color:var(--txt3);
  font-family:var(--display);font-size:12px;letter-spacing:.05em;text-align:center;padding:14px;
  background:repeating-linear-gradient(45deg,transparent,transparent 9px,rgba(255,255,255,.015) 9px,rgba(255,255,255,.015) 18px)}

.note{background:rgba(245,158,11,.07);border:1px solid rgba(245,158,11,.3);border-radius:var(--r);padding:13px 15px;font-size:13.5px;color:#f4d08a}
.note.info{background:rgba(59,130,246,.07);border-color:rgba(59,130,246,.3);color:#bcd3ff}
.note.ok{background:rgba(0,229,199,.07);border-color:rgba(0,229,199,.3);color:#9defdf}

ul.feat{list-style:none;margin-top:14px}
ul.feat li{padding:9px 0;border-bottom:1px solid var(--s2);font-size:14px;display:flex;gap:10px}
ul.feat li::before{content:"›";color:var(--green);font-family:var(--display);font-weight:700}
.price{font-family:var(--display);font-weight:800;font-size:40px;letter-spacing:-.02em}
.price small{font-size:15px;font-weight:600;color:var(--txt2)}
.ribbon{font-family:var(--display);font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--green)}

/* tabela comparacao */
table.cmp{width:100%;border-collapse:collapse;font-size:14px}
table.cmp th{text-align:left;font-family:var(--display);font-weight:600;font-size:12px;letter-spacing:.04em;color:var(--txt3);padding:12px;border-bottom:1px solid var(--s2)}
table.cmp td{padding:12px;border-bottom:1px solid var(--s2)}

/* ---------- hero ---------- */
.hero{padding:64px 0 48px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-40% -10% auto;height:560px;pointer-events:none;
  background:radial-gradient(60% 60% at 50% 0,rgba(59,130,246,.20),transparent 70%),radial-gradient(40% 50% at 80% 10%,rgba(139,92,246,.16),transparent 70%),radial-gradient(40% 50% at 18% 20%,rgba(0,229,199,.14),transparent 70%)}
.hero>*{position:relative}
.wordmark{font-family:var(--display);font-weight:800;font-size:clamp(56px,11vw,128px);line-height:.95;letter-spacing:-.04em;
  background:linear-gradient(90deg,var(--green),var(--blue),var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:6px;
  animation:rise .7s ease both}
.subwordmark{font-family:var(--display);font-weight:600;font-size:clamp(15px,2.4vw,20px);color:var(--txt2);letter-spacing:.02em;animation:rise .7s .08s ease both}
h1.big{font-size:40px;font-weight:800;line-height:1.08;letter-spacing:-.025em;max-width:20ch;margin-top:34px;animation:rise .7s .16s ease both}
.lead{font-size:18px;color:var(--txt2);max-width:60ch;margin-top:16px;animation:rise .7s .24s ease both}
.hero-cta{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap;animation:rise .7s .32s ease both}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* ---------- acordeao (Aprenda) ---------- */
.acc{border:1px solid var(--s2);border-radius:var(--r);margin-bottom:10px;overflow:hidden;background:var(--s1)}
.acc summary{list-style:none;cursor:pointer;padding:16px 18px;font-family:var(--display);font-weight:600;font-size:15px;display:flex;align-items:center;gap:12px}
.acc summary::-webkit-details-marker{display:none}
.acc summary::before{content:"+";color:var(--green);font-weight:800;font-size:18px;width:14px}
.acc[open] summary::before{content:"–"}
.acc .body{padding:0 18px 18px 44px;color:var(--txt2);font-size:14px}
.acc .body strong{color:var(--txt)}
.acc .body a{font-weight:600}

/* ---------- footer ---------- */
.site-foot{border-top:1px solid var(--s2);margin-top:40px;padding:42px 0 30px;background:#070a14}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
.site-foot h4{font-size:13px;letter-spacing:.04em;margin-bottom:12px;color:var(--txt)}
.site-foot a{display:block;color:var(--txt2);font-size:14px;padding:4px 0}
.site-foot a:hover{color:var(--green)}
.foot-bottom{border-top:1px solid var(--s2);margin-top:28px;padding-top:18px}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}

/* ---------- responsivo ---------- */
@media(max-width:820px){
  nav.main{position:fixed;inset:64px 0 auto 0;flex-direction:column;background:var(--bg);border-bottom:1px solid var(--s2);padding:10px 24px 18px;gap:0;display:none}
  nav.main.open{display:flex}
  nav.main a{padding:12px 4px;border-bottom:1px solid var(--s2)}
  .navtoggle{display:inline-flex;align-items:center;justify-content:center}
  .hide-sm{display:none}
}