/* ============================================================
   LABORATÓRIO ESSÊNCIA — Design System
   Identidade herdada do Workshop EssêncIA (Azul Royal + Ouro + Lilás + Branco)
   Fonte da verdade: 03-brand/brandbook.html (Projeto Lançamento Pago Perpétuo)
   ============================================================ */

:root {
  /* Cores — tokens oficiais do brandbook Workshop EssêncIA */
  --bg: #060e24;
  --bg2: #0a1530;
  --card: #0d1b3e;
  --card2: #111d40;
  --border: #1e3a8a;
  --border-light: #2d4da8;
  --royal: #1e3a8a;
  --royal-dark: #0f1f50;
  --gold: #f5c842;
  --gold-mid: #c99a2e;
  --gold-dark: #a87a1f;
  --gold-light: #fff4c2;
  --lilac: #c3a6e8;
  --lilac2: #e9b8e2;
  --white-warm: #f8f5ee;
  --text: #e2d9f3;
  --text-muted: #94a3b8;
  --text-dim: #5c6b8a;

  /* Cores exatas do lockup oficial (logo-oficial.html — Conceito B, aprovado CP8) */
  --logo-gold: #C9A84C;
  --logo-gold-light: #F0D078;
  --logo-branco: #F8FAFC;

  /* Tipografia */
  --display: 'Playfair Display', Georgia, serif;
  --accent-serif: 'Fraunces', serif;
  --serif: 'Source Serif 4', Georgia, serif;
  --sans: 'Outfit', sans-serif;
  --mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Efeitos */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 14px;
  --shadow-gold: 0 8px 30px rgba(245, 200, 66, 0.16);
  --shadow-card: 0 20px 60px rgba(0,0,0,.45);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--serif);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 { font-family: var(--display); line-height: 1.15; font-weight: 700; color: var(--white-warm); }
.italic-accent { font-family: var(--accent-serif); font-style: italic; color: var(--lilac); }
.sans { font-family: var(--sans); }

::selection { background: var(--gold); color: var(--royal-dark); }

/* ---------- textura atmosférica ---------- */
.atmo {
  position: relative;
  background: linear-gradient(160deg, #060e24 0%, #0f1f50 45%, #1e3a8a 100%);
  overflow: hidden;
}
.atmo::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 18% 30%, rgba(245,200,66,.08) 0%, transparent 55%),
    radial-gradient(ellipse at 82% 15%, rgba(195,166,232,.07) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(30,58,138,.5) 0%, transparent 60%);
  pointer-events: none;
}

/* ---------- lockup oficial (símbolo + wordmark EssêncIA) ---------- */
.lockup { display: flex; align-items: center; gap: 12px; }
.lockup.stacked { flex-direction: column; gap: 14px; text-align: center; }
.lockup .eyebrow-mark {
  font-family: var(--mono); font-size: 9px; letter-spacing: .28em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 6px; display: block;
}
.essencia-wordmark {
  font-family: var(--display); font-weight: 700; letter-spacing: -.02em; line-height: 1;
  color: var(--white-warm); display: inline-block;
}
.essencia-wordmark .ia-mark { color: var(--logo-gold-light); position: relative; }
.essencia-wordmark .ia-mark::after {
  content: ''; position: absolute; bottom: -3px; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--logo-gold) 0%, var(--logo-gold-light) 60%, var(--logo-gold) 100%);
  border-radius: 1px;
}
.essencia-sub {
  font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--text-muted);
}

/* ---------- badge / kicker ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--gold-mid); color: var(--gold);
  padding: .35rem 1.1rem; font-family: var(--sans); font-size: .68rem;
  font-weight: 500; letter-spacing: .25em; text-transform: uppercase;
  border-radius: 100px;
}
.rule { width: 70px; height: 1px; background: linear-gradient(90deg, transparent, var(--gold-mid), transparent); }

/* ---------- gold gradient text ---------- */
.gold-text {
  background: linear-gradient(135deg, var(--gold-light), var(--gold), var(--gold-mid));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

/* ---------- screens ---------- */
.screen { display: none; animation: fade .5s var(--ease); min-height: 100vh; }
.screen.active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; } }

/* ---------- LOGIN ---------- */
#login.active { display: grid; grid-template-columns: 1.05fr .95fr; min-height: 100vh; }
.login-art {
  position: relative; display: flex; flex-direction: column; justify-content: space-between;
  padding: 3.4rem 3.6rem; min-height: 100vh;
}
.login-art > * { position: relative; z-index: 2; }
.login-art h1 { font-size: clamp(2.2rem, 4vw, 3rem); margin-bottom: 1rem; }
.login-art p.lede { color: var(--text); opacity: .82; font-size: 1rem; max-width: 420px; line-height: 1.8; font-weight: 400; }
.login-form {
  background: var(--bg2); display: flex; align-items: center; justify-content: center;
  padding: 2.5rem; border-left: 1px solid var(--border);
}
.form-card { width: 100%; max-width: 380px; }
.form-card .brandmark { text-align: center; margin-bottom: 2rem; }
.form-card .brandmark b { font-family: var(--display); font-size: 1.4rem; color: var(--white-warm); display: block; }
.form-card .brandmark span { font-family: var(--sans); font-size: .68rem; letter-spacing: .3em; color: var(--lilac); text-transform: uppercase; }
.form-card h3 { font-size: 1.5rem; text-align: center; margin-bottom: .4rem; }
.form-card .sub { color: var(--text-muted); font-size: .85rem; text-align: center; margin-bottom: 1.8rem; font-family: var(--sans); font-weight: 300; }

.field { margin-bottom: 1.1rem; }
.field label {
  display: block; font-family: var(--sans); font-size: .68rem; letter-spacing: .1em;
  color: var(--lilac); margin-bottom: .45rem; text-transform: uppercase;
}
.field input {
  width: 100%; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: .85rem 1rem; color: var(--white-warm); font-family: var(--sans); font-size: .92rem;
}
.field input:focus { outline: none; border-color: var(--gold); }
.form-err { color: #ff9a9a; font-size: .75rem; min-height: 16px; margin: 2px 0 6px; text-align: center; font-family: var(--sans); }
.form-foot { text-align: center; margin-top: 1rem; font-size: .78rem; color: var(--text-muted); font-family: var(--sans); }
.form-foot a { color: var(--gold); cursor: pointer; text-decoration: none; font-weight: 500; }

/* ---------- buttons ---------- */
.btn-primary {
  width: 100%; background: var(--white-warm); color: var(--royal-dark);
  border: none; border-radius: var(--radius); padding: .95rem;
  font-family: var(--sans); font-weight: 500; font-size: .88rem; letter-spacing: .03em;
  cursor: pointer; transition: all .25s var(--ease);
}
.btn-primary:hover { background: var(--gold); transform: translateY(-2px); box-shadow: var(--shadow-gold); }
.btn-ghost {
  background: transparent; color: var(--text); border: 1px solid var(--border-light);
  border-radius: var(--radius); padding: .8rem 1.4rem; font-family: var(--sans); font-size: .82rem;
  cursor: pointer; transition: .25s var(--ease);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

/* ---------- topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50; display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2.6rem; background: rgba(6,14,36,.85); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.topbar .brandmark { display: flex; align-items: center; gap: 10px; }
.topbar .brandmark b { font-family: var(--display); font-size: 1.1rem; color: var(--white-warm); }
.topbar .brandmark span { font-family: var(--sans); font-size: .62rem; letter-spacing: .28em; color: var(--lilac); text-transform: uppercase; display: block; }
.nav-links { display: flex; gap: 1.8rem; font-family: var(--sans); }
.nav-links a { color: var(--text-muted); text-decoration: none; font-size: .82rem; letter-spacing: .02em; cursor: pointer; transition: .2s; }
.nav-links a:hover, .nav-links a.cur { color: var(--gold); }
.avatar {
  width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--gold);
  display: flex; align-items: center; justify-content: center; font-family: var(--display);
  color: var(--gold); background: var(--card); cursor: pointer; font-size: .9rem;
}

/* ---------- hub / hero ---------- */
.hub-hero { padding: 3.4rem 2.6rem 2.6rem; }
.hub-hero .section-num {
  font-family: var(--sans); font-size: .68rem; font-weight: 500; letter-spacing: .3em;
  text-transform: uppercase; color: var(--gold); display: block; margin-bottom: 1rem;
}
.hub-hero h1 { font-size: clamp(2rem, 3.6vw, 3rem); max-width: 720px; }
.hub-hero p.lede { color: var(--text-muted); font-size: 1rem; max-width: 560px; margin-top: 1rem; font-family: var(--serif); }

/* ---------- trilha cards ---------- */
.trilhas-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.6rem;
  padding: 0 2.6rem 3rem;
}
.trilha-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden; cursor: pointer;
  border: 1px solid var(--border); background: linear-gradient(160deg, var(--card), var(--card2));
  padding: 1.8rem; min-height: 230px; display: flex; flex-direction: column; justify-content: space-between;
  transition: all .35s var(--ease);
}
.trilha-card:hover { transform: translateY(-6px); border-color: var(--gold-mid); box-shadow: var(--shadow-card); }
.trilha-card .tc-num { font-family: var(--display); font-size: .82rem; letter-spacing: .2em; color: var(--gold); text-transform: uppercase; margin-bottom: .8rem; }
.trilha-card h3 { font-size: 1.35rem; margin-bottom: .6rem; }
.trilha-card p { color: var(--text-muted); font-size: .84rem; font-family: var(--sans); font-weight: 300; line-height: 1.6; }
.trilha-card .tc-go { font-family: var(--sans); font-size: .78rem; color: var(--lilac); margin-top: 1.2rem; letter-spacing: .04em; }
.trilha-card:hover .tc-go { color: var(--gold); }

/* ---------- trilha detail ---------- */
.trilha-detail { padding: 2.6rem; max-width: 880px; margin: 0 auto; }
.back-link { font-family: var(--sans); font-size: .8rem; color: var(--lilac); cursor: pointer; display: inline-flex; align-items: center; gap: 6px; margin-bottom: 1.6rem; }
.back-link:hover { color: var(--gold); }
.trilha-detail .badge { margin-bottom: 1.2rem; }
.trilha-detail h1 { font-size: clamp(1.8rem, 3vw, 2.6rem); margin-bottom: .6rem; }
.trilha-detail .sub { font-family: var(--accent-serif); font-style: italic; color: var(--lilac); font-size: 1.05rem; margin-bottom: 1.8rem; }
.trilha-detail .rule { margin: 1.8rem 0; }
.trilha-detail h4 {
  font-family: var(--sans); font-size: .72rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--gold); margin: 2rem 0 1rem;
}
.trilha-detail p { color: var(--text); font-size: .96rem; line-height: 1.85; margin-bottom: 1rem; }

/* ---------- resource cards (apps/prompts dentro da trilha) ---------- */
.res-list { display: flex; flex-direction: column; gap: .8rem; margin: 1rem 0 2rem; }
.res {
  display: flex; align-items: center; gap: 14px; background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1.2rem; text-decoration: none; color: var(--white-warm);
  transition: .25s var(--ease);
}
.res:hover { border-color: var(--gold); background: var(--card2); transform: translateX(4px); }
.res .ic {
  width: 40px; height: 40px; flex: 0 0 40px; border-radius: var(--radius); display: flex;
  align-items: center; justify-content: center; font-size: 1.1rem; color: var(--gold);
  background: rgba(245,200,66,.1);
}
.res .rtxt b { font-family: var(--sans); font-size: .95rem; display: block; margin-bottom: 2px; }
.res .rtxt small { font-family: var(--sans); font-size: .74rem; color: var(--text-muted); }
.res .pendente {
  margin-left: auto; font-family: var(--sans); font-size: .65rem; letter-spacing: .08em;
  color: var(--gold-dark); border: 1px solid var(--gold-dark); padding: 3px 9px; border-radius: 100px;
  text-transform: uppercase;
}

.prompt-box {
  background: var(--royal-dark); border: 1px solid var(--gold-mid); border-radius: var(--radius);
  padding: 1.4rem; margin: 1rem 0 1.6rem; font-family: var(--sans); font-size: .85rem; color: var(--gold-light);
  white-space: pre-wrap; line-height: 1.7; position: relative;
}
.prompt-box .copy-btn {
  position: absolute; top: 12px; right: 12px; background: none; border: 1px solid var(--gold-mid);
  color: var(--gold); font-family: var(--sans); font-size: .68rem; padding: 5px 10px; border-radius: 100px;
  cursor: pointer;
}
.prompt-box .copy-btn:hover { background: var(--gold); color: var(--royal-dark); }

/* ---------- admin ---------- */
.admin-panel { padding: 2.6rem; max-width: 760px; margin: 0 auto; }
.admin-panel .stat-row { display: flex; gap: 1rem; margin-bottom: 2rem; flex-wrap: wrap; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.2rem 1.6rem; flex: 1; min-width: 140px; }
.stat b { font-family: var(--display); font-size: 1.8rem; color: var(--gold); display: block; }
.stat span { font-family: var(--sans); font-size: .72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; }
table.inv { width: 100%; border-collapse: collapse; font-family: var(--sans); font-size: .82rem; }
table.inv th { text-align: left; color: var(--lilac); font-weight: 500; padding: .6rem; border-bottom: 1px solid var(--border); font-size: .72rem; letter-spacing: .05em; text-transform: uppercase; }
table.inv td { padding: .6rem; border-bottom: 1px solid var(--card2); color: var(--text); }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  #login.active { grid-template-columns: 1fr; }
  .login-art { display: none; }
  .topbar { padding: 1rem 1.4rem; flex-wrap: wrap; gap: .8rem; }
  .nav-links { gap: 1rem; }
  .hub-hero, .trilhas-grid, .trilha-detail, .admin-panel { padding-left: 1.4rem; padding-right: 1.4rem; }
}