/* ===========================================================================
   Interactive Hud — site premium (design system partilhado)
   interactivehud.com · ValenorEye, Lda
   =========================================================================== */
:root{
  --bg:#06090f; --bg2:#0a0f18; --panel:#0f1626; --panel2:#111a2c;
  --line:#1b2840; --line2:#28395a;
  --txt:#eaf2fb; --dim:#9fb0c6; --dim2:#6b7d96;
  --cyan:#34d6da; --blue:#3a8dff; --violet:#9b5cff; --pink:#ff4da6; --amber:#ffc84a; --green:#4be08a;
  --grad:linear-gradient(92deg,var(--cyan),var(--blue) 40%,var(--violet) 72%,var(--pink));
  --radius:16px;
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font:16px/1.62 "Segoe UI",system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---- ambient glow layer (fundo animado subtil) ---- */
.ambient{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.ambient span{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;animation:drift 26s ease-in-out infinite}
.ambient span:nth-child(1){width:520px;height:520px;background:rgba(58,141,255,.20);top:-120px;left:-80px}
.ambient span:nth-child(2){width:480px;height:480px;background:rgba(255,77,166,.14);top:12%;right:-120px;animation-delay:-8s}
.ambient span:nth-child(3){width:420px;height:420px;background:rgba(155,92,255,.16);bottom:-140px;left:32%;animation-delay:-15s}
@keyframes drift{0%,100%{transform:translate(0,0)}33%{transform:translate(40px,-30px)}66%{transform:translate(-30px,26px)}}
@media(prefers-reduced-motion:reduce){.ambient span{animation:none}}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;border-radius:12px;padding:14px 26px;font-size:15px;cursor:pointer;border:0;transition:transform .18s,box-shadow .18s,border-color .18s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--grad);color:#04121c;box-shadow:0 12px 34px -10px rgba(58,141,255,.65)}
.btn-primary:hover{box-shadow:0 18px 44px -12px rgba(155,92,255,.7)}
.btn-ghost{background:#ffffff0d;color:var(--txt);border:1px solid var(--line2)}
.btn-ghost:hover{border-color:var(--cyan)}
.btn-sm{padding:9px 18px;font-size:14px}

/* ---- nav ---- */
nav{position:sticky;top:0;z-index:40;backdrop-filter:blur(14px);background:rgba(6,9,15,.82);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
nav .logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:.2px}
nav .logo img{width:30px;height:30px}
nav .links{display:flex;gap:24px;color:var(--dim);font-size:14px;font-weight:600;align-items:center}
nav .links a{position:relative;padding:4px 0;transition:color .16s}
nav .links a:hover,nav .links a.active{color:var(--txt)}
nav .links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--grad);border-radius:2px}
.navtoggle{display:none;background:none;border:1px solid var(--line2);color:var(--txt);border-radius:10px;padding:7px 11px;font-size:18px;cursor:pointer}
@media(max-width:860px){
  nav .links{position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;background:var(--bg2);border-bottom:1px solid var(--line);padding:8px 0;display:none}
  nav .links.open{display:flex}
  nav .links a{padding:13px 24px;width:100%}
  nav .links .btn{margin:10px 24px}
  .navtoggle{display:inline-block}
}

/* ---- sections ---- */
section{padding:84px 0;position:relative}
.eyebrow{color:var(--cyan);font-weight:700;letter-spacing:.15em;text-transform:uppercase;font-size:13px;text-align:center}
h1{font-size:clamp(36px,6.2vw,66px);line-height:1.03;font-weight:800;letter-spacing:-1.2px}
h2{font-size:clamp(28px,4.6vw,44px);font-weight:800;text-align:center;margin:14px auto 12px;letter-spacing:-.5px;line-height:1.1}
h3{font-size:18px;font-weight:700}
.lead{color:var(--dim);text-align:center;max-width:680px;margin:0 auto 52px;font-size:clamp(16.5px,1.8vw,18.5px)}
.section-alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---- hero ---- */
.hero{position:relative;text-align:center;padding:104px 0 72px;overflow:hidden}
.hero .mark{width:104px;height:104px;display:block;margin:0 auto 18px;filter:drop-shadow(0 12px 34px rgba(155,92,255,.45))}
.badge{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);border:1px solid var(--line2);background:#0c1422;padding:6px 14px;border-radius:30px;margin-bottom:20px}
.hero .sub{max-width:680px;margin:20px auto 12px;color:var(--dim);font-size:clamp(16px,2.1vw,20px)}
.cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:26px}
.note{margin-top:16px;color:var(--dim2);font-size:13px}
.heroshot{margin:44px auto 0;max-width:780px;border-radius:18px;border:1px solid var(--line2);box-shadow:0 44px 90px -34px #000, 0 0 0 1px rgba(52,214,218,.06);display:block;width:100%}

/* triad signature (watches/remembers/knows) */
.triad-tag{display:inline-flex;flex-wrap:wrap;gap:10px 22px;justify-content:center;margin:22px auto 0;font:800 clamp(15px,2.2vw,20px)/1 "Segoe UI",system-ui,sans-serif;letter-spacing:.02em}
.triad-tag span{display:inline-flex;align-items:center;gap:9px}
.triad-tag i{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);font-style:normal}
.triad-tag span:nth-child(2) i{background:var(--violet);box-shadow:0 0 12px var(--violet)}
.triad-tag span:nth-child(3) i{background:var(--pink);box-shadow:0 0 12px var(--pink)}

/* ---- pillar cards (home) ---- */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pillar{position:relative;background:linear-gradient(180deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:20px;padding:30px 26px 26px;overflow:hidden;transition:transform .2s,border-color .2s,box-shadow .2s;display:flex;flex-direction:column}
.pillar:hover{transform:translateY(-5px);border-color:var(--line2);box-shadow:0 26px 60px -30px #000}
.pillar::before{content:"";position:absolute;inset:0 0 auto;height:3px;background:var(--grad);opacity:.9}
.pillar .pj{font:800 12px/1 "Segoe UI",system-ui,sans-serif;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan)}
.pillar h3{font-size:23px;margin:12px 0 8px;letter-spacing:-.3px}
.pillar p{color:var(--dim);font-size:15px;flex:1}
.pillar .plink{margin-top:16px;font-weight:700;font-size:14px;color:var(--txt);display:inline-flex;align-items:center;gap:7px}
.pillar:hover .plink{color:var(--cyan)}
.pillar .pshot{margin:18px -26px -26px;border-top:1px solid var(--line);display:block;width:calc(100% + 52px);max-width:none}
@media(max-width:860px){.pillars{grid-template-columns:1fr;max-width:460px;margin-inline:auto}}

/* ---- gallery ---- */
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gal figure{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--panel)}
.gal img{width:100%;display:block;aspect-ratio:16/10;object-fit:cover;transition:transform .45s}
.gal figure:hover img{transform:scale(1.07)}
.gal figcaption{position:absolute;left:12px;bottom:10px;font-weight:700;font-size:13px;letter-spacing:.04em;text-shadow:0 2px 8px #000}
.seeall{display:inline-flex;gap:7px;align-items:center;color:var(--cyan);font-weight:700;font-size:14.5px;transition:gap .16s}
.seeall:hover{gap:12px}
.center{text-align:center;margin-top:32px}

/* ---- feature grid ---- */
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.fcard{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:transform .18s,border-color .18s}
.fcard:hover{transform:translateY(-3px);border-color:var(--line2)}
.fcard .ic{font-size:25px;margin-bottom:12px;display:inline-block}
.fcard h3{font-size:18px;margin-bottom:7px}
.fcard p{color:var(--dim);font-size:14.5px}
@media(max-width:860px){.gal,.feat{grid-template-columns:1fr 1fr}}
@media(max-width:540px){.gal,.feat{grid-template-columns:1fr}}

/* ---- diary + id-card ---- */
.diarygrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;text-align:left;margin-top:12px}
.dcard{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px;transition:border-color .18s,transform .18s}
.dcard:hover{border-color:var(--line2);transform:translateY(-3px)}
.dcard .dic{font-size:22px}
.dcard h3{font-size:16px;margin:10px 0 6px}
.dcard p{color:var(--dim);font-size:14px}
@media(max-width:820px){.diarygrid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.diarygrid{grid-template-columns:1fr}}
.idlist{display:grid;gap:12px;max-width:720px;margin:0 auto 22px;text-align:left}
.idrow{display:flex;gap:16px;align-items:flex-start;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 20px;transition:border-color .18s}
.idrow:hover{border-color:var(--line2)}
.idtag{flex:0 0 60px;font:800 12px "Segoe UI",system-ui,sans-serif;letter-spacing:.08em;color:var(--cyan);border:1px solid var(--line2);border-radius:8px;padding:9px 0;text-align:center;background:#0c1422}
.idrow p{color:var(--dim);font-size:14.5px}
.idrow b{color:var(--txt)}

/* ---- panel theme switcher ---- */
.panelshow{max-width:900px;margin:0 auto}
.panelframe{position:relative;border-radius:18px;border:1px solid var(--line2);background:#070c14;box-shadow:0 44px 96px -36px #000;overflow:hidden}
#panelimg{width:100%;display:block;transition:opacity .3s ease}
.themebar{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:26px 0 0}
.themepill{border:1px solid var(--line2);background:#0c1422;color:var(--dim);border-radius:30px;padding:10px 18px;font:700 13.5px "Segoe UI",system-ui,sans-serif;cursor:pointer;transition:all .16s}
.themepill:hover{color:var(--txt);border-color:var(--cyan)}
.themepill.on{color:#04121c;background:var(--grad);border-color:transparent}
.themedesc{text-align:center;color:var(--dim);margin-top:16px;font-size:14.5px;min-height:22px}

/* ---- comparison strip ---- */
.versus{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;align-items:center;max-width:840px;margin:0 auto}
.vcol{border:1px solid var(--line);border-radius:18px;padding:28px;background:var(--panel)}
.vcol.bad{opacity:.85}
.vcol h3{font-size:16px;margin-bottom:14px;letter-spacing:.02em}
.vcol ul{list-style:none;display:grid;gap:9px}
.vcol li{color:var(--dim);font-size:14px;display:flex;gap:9px}
.vcol.bad li::before{content:"—";color:var(--dim2)}
.vcol.good{border-color:var(--line2);background:linear-gradient(180deg,var(--panel2),var(--panel))}
.vcol.good li::before{content:"✓";color:var(--cyan);font-weight:800}
.vs{font:800 15px "Segoe UI",system-ui,sans-serif;color:var(--dim2);letter-spacing:.1em}
@media(max-width:720px){.versus{grid-template-columns:1fr}.vs{display:none}}

/* ---- misc gallery (more ways) ---- */
.miscgal{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;max-width:740px;margin:0 auto}
.miscgal figure{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 16px;text-align:center;transition:border-color .18s,transform .18s}
.miscgal figure:hover{border-color:var(--line2);transform:translateY(-3px)}
.miscgal img{width:100%;max-width:290px;display:block;margin:0 auto}
.miscgal figcaption{margin-top:13px;font-size:12.5px;font-weight:700;color:var(--dim)}
.ticker-strip{margin:16px auto 0;max-width:860px}
.ticker-strip img{width:100%;border-radius:12px;border:1px solid var(--line);display:block}
.ticker-strip figcaption{margin-top:10px;text-align:center;font-size:12.5px;color:var(--dim)}
@media(max-width:720px){.miscgal{grid-template-columns:1fr;max-width:360px}}

/* ---- pricing ---- */
.price-wrap{display:flex;justify-content:center}
.price{background:linear-gradient(180deg,#101a2b,#0a111c);border:1px solid var(--line2);border-radius:22px;padding:40px;max-width:440px;width:100%;text-align:center;box-shadow:0 34px 80px -34px #000;position:relative;overflow:hidden}
.price::before{content:"";position:absolute;inset:0 0 auto;height:3px;background:var(--grad)}
.price .amount{font-size:46px;font-weight:800;margin:10px 0}
.price .amount small{font-size:17px;color:var(--dim);font-weight:600}
.price ul{list-style:none;text-align:left;margin:24px 0;display:grid;gap:11px}
.price li{color:var(--dim);font-size:15px;display:flex;gap:10px}
.price li::before{content:"✓";color:var(--cyan);font-weight:800}
.trust{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:18px}
.trust span{font-size:12.5px;color:var(--dim);border:1px solid var(--line);border-radius:30px;padding:6px 13px;background:#0c1422}

/* ---- reveal on scroll (progressive enhancement) ---- */
/* Sem JS, ou antes de o JS correr, o conteúdo está SEMPRE visível.
   O estado escondido só se aplica quando o <html> ganha a classe .js. */
.reveal{opacity:1;transform:none}
html.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
html.js .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){html.js .reveal{opacity:1;transform:none;transition:none}}

/* ---- footer ---- */
footer{border-top:1px solid var(--line);padding:40px 0 34px;color:var(--dim2);font-size:13px;text-align:center;background:var(--bg2)}
footer a{color:var(--cyan)}
footer .frow{margin-bottom:8px}
footer .fbig{display:flex;align-items:center;justify-content:center;gap:10px;font-weight:800;color:var(--txt);font-size:15px;margin-bottom:14px}
footer .fbig img{width:24px;height:24px}

/* ---- theme toggle + language switch (nav) ---- */
.themetoggle{background:none;border:1px solid var(--line2);color:var(--txt);border-radius:10px;width:40px;height:38px;font-size:15px;line-height:1;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;transition:border-color .16s,color .16s}
.themetoggle:hover{border-color:var(--cyan);color:var(--cyan)}
.themetoggle::before{content:"\2600"} /* ☀ — dark mode: offer light */
:root[data-theme="light"] .themetoggle::before{content:"\263E"} /* ☾ — light mode: offer dark */
.langlink{border:1px solid var(--line2);border-radius:8px;padding:6px 11px;font-size:13px;font-weight:700;color:var(--dim);flex:0 0 auto;transition:color .16s,border-color .16s}
.langlink:hover,.langlink.active{color:var(--txt);border-color:var(--cyan)}
@media(max-width:860px){
  .langlink{margin:8px 24px;width:auto;text-align:center}
  .themetoggle{margin:8px 24px}
}

/* ============================ LIGHT THEME ============================
   Escuro é o padrão da marca; o utilizador escolhe claro (persistido em
   localStorage 'ihud-theme'). Um script no <head> aplica data-theme antes
   de pintar, para não haver flash. */
:root[data-theme="light"]{
  --bg:#f4f7fb; --bg2:#e8eef7; --panel:#ffffff; --panel2:#f4f8fd;
  --line:#dde5f0; --line2:#c4d1e2;
  --txt:#0e1a2b; --dim:#48586f; --dim2:#71839c;
  --cyan:#0a8894; --blue:#2b7bf0; --violet:#7b46e6; --pink:#e23b8f; --amber:#c9820a; --green:#1c9e63;
  --grad:linear-gradient(92deg,#12aeb9,#2b7fff 40%,#8b3fff 72%,#ff2f92);
}
:root[data-theme="light"] body{-webkit-font-smoothing:auto}
:root[data-theme="light"] .ambient span{opacity:.20;filter:blur(100px)}
:root[data-theme="light"] nav{background:rgba(255,255,255,.82)}
:root[data-theme="light"] .btn-ghost{background:rgba(14,26,43,.04)}
:root[data-theme="light"] .badge,
:root[data-theme="light"] .idtag,
:root[data-theme="light"] .themepill,
:root[data-theme="light"] .trust span{background:#eef3fa}
:root[data-theme="light"] .panelframe{background:#eef3fa;box-shadow:0 40px 90px -40px rgba(20,42,80,.35)}
:root[data-theme="light"] .price{background:linear-gradient(180deg,#ffffff,#f4f8fd);box-shadow:0 30px 74px -36px rgba(20,42,80,.30)}
:root[data-theme="light"] .heroshot{box-shadow:0 40px 84px -36px rgba(18,40,78,.28),0 0 0 1px rgba(10,136,148,.09)}
:root[data-theme="light"] .pillar:hover{box-shadow:0 26px 56px -32px rgba(20,42,80,.32)}
:root[data-theme="light"] .fcard:hover,
:root[data-theme="light"] .dcard:hover,
:root[data-theme="light"] .idrow:hover{box-shadow:0 14px 34px -22px rgba(20,42,80,.30)}