/* Energy Academy Project — shared design system
   Palette, typography, header, buttons, cards, forms, footer.
   Draft: noindex, forms not connected. */

:root{
  --navy:#0B1B2E;
  --navy-deep:#0A1628;
  --navy-2:#10263F;
  --navy-3:#16324f;
  --gold:#D4AA5A;
  --gold-hot:#F2AC2A;
  --wave:#1684F0;
  --wave-soft:#5AA9F5;
  --ink:#F0F5FA;
  --ink-dim:#A7BCD2;
  --ink-faint:#7C93AC;
  --line:rgba(160,196,230,.16);
  --line-strong:rgba(160,196,230,.32);
  --sand:#8A7350;

  --font-display:"Archivo","Arial Narrow",system-ui,sans-serif;
  --font-body:"Inter Tight",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,"Consolas",monospace;

  --maxw:1180px;
  --pad:clamp(20px,4vw,48px);
  --r:14px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}
html,body{overflow-x:clip;max-width:100%}

body{
  margin:0;
  font-family:var(--font-body);
  font-size:1.0625rem;
  line-height:1.6;
  color:var(--ink);
  background:var(--navy-deep);
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto;display:block}

a{color:var(--wave-soft);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--gold-hot)}

:focus-visible{
  outline:2px solid var(--gold-hot);
  outline-offset:3px;
  border-radius:4px;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.08;
  letter-spacing:-.015em;
  margin:0 0 .5em;
  text-wrap:balance;
}
h1{font-size:clamp(2.3rem,5.6vw,4rem)}
h2{font-size:clamp(1.75rem,3.4vw,2.6rem)}
h3{font-size:1.2rem;letter-spacing:-.005em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}

.container{
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--pad);
}

.skip-link{
  position:fixed;left:8px;top:-60px;z-index:200;
  background:var(--gold-hot);color:#0B1B2E;font-weight:600;
  padding:10px 16px;border-radius:8px;text-decoration:none;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:8px;color:#0B1B2E}

/* ---------- draft bar ---------- */
.draft-bar{
  position:relative;z-index:60;
  background:rgba(242,172,42,.1);
  border-bottom:1px solid rgba(242,172,42,.28);
  color:#F5D9A3;
  font-family:var(--font-mono);
  font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;
  padding:8px var(--pad);text-align:center;
}
.ph{
  color:var(--gold-hot);
  border-bottom:1px dashed rgba(242,172,42,.6);
  font-style:normal;
  white-space:normal;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:env(safe-area-inset-top,0px);
  z-index:50;
  backdrop-filter:blur(14px) saturate(130%);
  background:linear-gradient(180deg,rgba(7,17,29,.9),rgba(7,17,29,.55));
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;align-items:center;gap:20px;
  min-height:68px;
}
.brand{
  display:flex;align-items:center;gap:12px;
  text-decoration:none;color:var(--ink);flex:0 0 auto;
}
.brand img{width:44px;height:auto}
.brand-text{
  display:flex;flex-direction:column;line-height:1;
  font-family:var(--font-display);
}
.brand-text strong{font-size:.86rem;letter-spacing:.1em;font-weight:700}
.brand-text span{
  font-family:var(--font-mono);
  font-size:.6rem;letter-spacing:.34em;color:var(--gold);margin-top:4px;
}
.nav-links{
  list-style:none;display:flex;align-items:center;gap:6px;
  margin:0 0 0 auto;padding:0;
}
.nav-links a{
  display:inline-block;padding:9px 12px;border-radius:8px;
  color:var(--ink-dim);text-decoration:none;
  font-size:.88rem;font-weight:500;letter-spacing:.01em;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a:hover,.nav-links a[aria-current]{color:var(--ink);background:rgba(160,196,230,.08)}
.nav-links a.btn{color:var(--ink)}
.nav-links a.btn--primary,
.nav-links a.btn--primary:hover{color:#0B1B2E;background:linear-gradient(180deg,#F5BA4B,#D9932A)}
.nav-links .btn{margin-left:8px}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:38px;border-radius:9px;
  background:rgba(160,196,230,.08);border:1px solid var(--line);
  color:var(--ink);cursor:pointer;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;
}

@media (max-width:900px){
  .nav-toggle{display:block}
  .nav-links{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(8,20,34,.97);
    border-bottom:1px solid var(--line);
    padding:10px var(--pad) 18px;
    margin:0;
  }
  .nav-links[hidden]{display:none}
  .nav-links a{padding:12px 6px;font-size:1rem}
  .nav-links .btn{margin:8px 0 0;text-align:center}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:10px;
  font-family:var(--font-display);font-weight:600;font-size:.92rem;
  letter-spacing:.02em;text-decoration:none;cursor:pointer;
  border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.btn--primary{
  background:linear-gradient(180deg,#F5BA4B,#D9932A);
  color:#0B1B2E;
  box-shadow:0 8px 26px -12px rgba(242,172,42,.9);
}
.btn--primary:hover{transform:translateY(-2px);color:#0B1B2E;box-shadow:0 14px 34px -14px rgba(242,172,42,1)}
.btn--ghost{
  background:rgba(160,196,230,.06);
  border-color:var(--line-strong);
  color:var(--ink);
}
.btn--ghost:hover{background:rgba(160,196,230,.13);color:var(--ink);transform:translateY(-2px)}

/* ---------- generic blocks ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);
  font-size:.7rem;letter-spacing:.28em;text-transform:uppercase;
  color:var(--gold);margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:26px;height:1px;background:var(--gold);opacity:.7;
}
.muted{color:var(--ink-dim)}
.small{font-size:.86rem}
.soon{
  display:inline-block;
  font-family:var(--font-mono);font-size:.62rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--gold);
  border:1px solid rgba(212,170,90,.45);border-radius:999px;
  padding:3px 9px;vertical-align:middle;margin-left:8px;
}

.section{padding:clamp(56px,8vw,104px) 0}
.section--alt{background:rgba(10,22,40,.55);border-block:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head p{color:var(--ink-dim)}

.split{display:grid;gap:clamp(28px,5vw,64px);grid-template-columns:1fr 1fr;align-items:start}
@media (max-width:860px){.split{grid-template-columns:1fr}}

.cards{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{
  background:linear-gradient(165deg,rgba(22,50,79,.5),rgba(10,22,40,.55));
  border:1px solid var(--line);border-radius:var(--r);
  padding:24px 22px;
  transition:border-color .25s var(--ease),transform .25s var(--ease);
}
.card:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.card h3{margin-bottom:8px}
.card p{color:var(--ink-dim);font-size:.94rem;margin:0}

.checklist{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:11px}
.checklist li{position:relative;padding-left:26px;color:var(--ink-dim)}
.checklist li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:9px;height:9px;border:1px solid var(--gold);
  transform:rotate(45deg);
}

.steps{
  list-style:none;counter-reset:s;margin:0;padding:0;
  display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
}
.steps li{
  counter-increment:s;
  border-top:1px solid var(--line-strong);padding-top:18px;position:relative;
}
.steps li::before{
  content:counter(s,decimal-leading-zero);
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;
  color:var(--gold);display:block;margin-bottom:8px;
}
.steps li p{color:var(--ink-dim);font-size:.94rem;margin:0}

.standards{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.standards li{
  display:grid;gap:4px;padding:18px 0;border-bottom:1px solid var(--line);
}
.standards li:first-child{border-top:1px solid var(--line)}
.standards strong{font-family:var(--font-display);font-size:1.02rem}
.standards span{color:var(--ink-dim);font-size:.93rem}

.faq details{
  border-bottom:1px solid var(--line);padding:16px 0;
}
.faq summary{
  cursor:pointer;font-family:var(--font-display);font-weight:600;font-size:1.05rem;
  list-style:none;display:flex;justify-content:space-between;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--gold);font-family:var(--font-mono)}
.faq details[open] summary::after{content:"−"}
.faq p{margin:12px 0 0;color:var(--ink-dim)}

/* ---------- forms ---------- */
.form-card{
  background:linear-gradient(170deg,rgba(22,50,79,.6),rgba(9,20,36,.75));
  border:1px solid var(--line-strong);border-radius:16px;
  padding:clamp(22px,3vw,34px);
}
.form-note-preview{
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--gold);
  border:1px dashed rgba(212,170,90,.5);border-radius:8px;
  padding:8px 12px;margin-bottom:18px;
}
.form-grid{display:grid;gap:16px;grid-template-columns:1fr 1fr}
@media (max-width:620px){.form-grid{grid-template-columns:1fr}}
.field{margin-bottom:16px;border:0;padding:0;min-width:0}
.field label,.field legend{
  display:block;margin-bottom:7px;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink-dim);
}
.opt{text-transform:none;letter-spacing:0;color:var(--ink-faint)}
input[type=text],input[type=email],input[type=url],select,textarea{
  width:100%;padding:12px 14px;
  background:rgba(4,12,22,.6);
  border:1px solid var(--line-strong);border-radius:9px;
  color:var(--ink);font:inherit;font-size:.97rem;
}
textarea{min-height:96px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:var(--wave);outline:none;box-shadow:0 0 0 3px rgba(22,132,240,.22)}
.checks{display:grid;gap:9px}
.check{
  display:flex;gap:10px;align-items:flex-start;
  font-family:var(--font-body);font-size:.93rem;letter-spacing:0;
  text-transform:none;color:var(--ink-dim);margin:0;
}
.check input{margin-top:.25em;accent-color:var(--gold-hot);width:16px;height:16px;flex:0 0 auto}
.form-note{font-size:.82rem;color:var(--ink-faint);margin-top:12px}
.form-status{
  margin-top:14px;padding:12px 14px;border-radius:9px;
  background:rgba(242,172,42,.12);border:1px solid rgba(242,172,42,.4);
  color:#F5D9A3;font-size:.9rem;
}

/* ---------- page hero (internal pages) ---------- */
.page-hero{
  position:relative;
  padding:clamp(60px,9vw,120px) 0 clamp(44px,6vw,72px);
  background:
    radial-gradient(1200px 420px at 78% -10%,rgba(22,132,240,.2),transparent 65%),
    linear-gradient(180deg,rgba(13,36,64,.86),rgba(10,22,40,.96) 78%),
    url(../assets/texturas/web/bg_abismo.jpg) center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:.5;
}
.page-hero p{max-width:640px;color:var(--ink-dim);font-size:1.08rem}
.page-hero .btn-row{margin-top:26px}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

.depth-tag{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.2em;
  color:var(--ink-faint);
}

/* ---------- episode cards ---------- */
.episodes{display:grid;gap:22px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.episode{
  background:linear-gradient(170deg,rgba(22,50,79,.45),rgba(9,20,36,.6));
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  display:flex;flex-direction:column;
  transition:border-color .25s var(--ease),transform .25s var(--ease);
}
.episode:hover{border-color:rgba(212,170,90,.5);transform:translateY(-4px)}
.episode-thumb{position:relative;aspect-ratio:16/9;background:#071523;overflow:hidden}
.episode-thumb img{width:100%;height:100%;object-fit:cover}
/* top-right: the masters carry a burned-in title bar top-left and a tiny
   "not to scale" note bottom-right, so this is the only corner clear on all four */
.episode-num{
  position:absolute;right:12px;top:12px;
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.16em;
  background:rgba(7,18,31,.82);border:1px solid var(--line-strong);
  color:var(--gold);padding:4px 9px;border-radius:6px;
}
.episode-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.episode-body h3{margin:0;font-size:1.08rem}
.episode-body p{color:var(--ink-dim);font-size:.92rem;margin:0}
.tags{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0}
.tags li{
  font-family:var(--font-mono);font-size:.62rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--ink-faint);
  border:1px solid var(--line);border-radius:999px;padding:3px 9px;
}
.episode-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  font-size:.84rem;flex-wrap:wrap;
}
.episode-foot a{text-decoration:none;font-weight:600}

/* ---------- footer ---------- */
.site-footer{
  background:linear-gradient(180deg,rgba(6,14,24,.7),#05101c);
  border-top:1px solid var(--line);
  padding:clamp(44px,6vw,72px) 0 calc(28px + env(safe-area-inset-bottom,0px));
  position:relative;z-index:3;
}
.footer-grid{
  display:grid;gap:32px;
  grid-template-columns:1.6fr 1fr 1fr;
  padding-bottom:34px;
}
@media (max-width:760px){.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>:first-child{grid-column:1/-1}}
.footer-motto{
  margin-top:14px;color:var(--ink-faint);font-size:.9rem;max-width:34ch;
}
.site-footer h4{
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--gold);margin:0 0 14px;font-weight:500;
}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.site-footer a{color:var(--ink-dim);text-decoration:none;font-size:.92rem}
.site-footer a:hover{color:var(--gold-hot)}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:20px;
  display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;
  color:var(--ink-faint);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .btn,.card,.episode{transition:none}
}