*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ink:      #08080a;
  --ink-2:    #0f0f12;
  --ink-3:    #16161a;
  --cream:    #f0ece2;
  --cream-dim:#c8c2b0;
  --gold:     #c9a84c;
  --gold-lt:  #e2c278;
  --gold-dim: rgba(201,168,76,0.12);
  --serif:    'Playfair Display', Georgia, serif;
  --sans:     'Jost', system-ui, sans-serif;
  --ease:     cubic-bezier(0.22,1,0.36,1);
}

html { scroll-behavior: smooth; }
body { background: var(--ink); color: var(--cream); font-family: var(--sans); font-weight: 400; overflow-x: hidden; line-height: 1.7; }

/* NAV */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 1.4rem 3rem; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(201,168,76,0.08); background: rgba(8,8,10,0.92); backdrop-filter: blur(12px); }
.nav-logo img { height: 38px; width: auto; display: block; }
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a { font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--cream-dim); text-decoration: none; transition: color 0.3s; }
.nav-links a:hover, .nav-links a.active { color: var(--gold); }
.nav-cta { font-size: 0.72rem; letter-spacing: 0.15em; text-transform: uppercase; padding: 0.7rem 1.6rem; border: 1px solid var(--gold); color: var(--gold); text-decoration: none; transition: all 0.3s; }
.nav-cta:hover { background: var(--gold); color: var(--ink); }
.nav-burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.nav-burger span { width: 24px; height: 1px; background: var(--cream); display: block; transition: 0.3s; }

/* HERO */
.hero { min-height: 100vh; display: flex; align-items: flex-end; padding: 0 3rem 6rem; position: relative; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: linear-gradient(to right, rgba(8,8,10,0.97) 45%, rgba(8,8,10,0.5) 100%); z-index: 1; }
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center top; opacity: 0.45; }
.hero-content { position: relative; z-index: 2; max-width: 720px; }
.hero-eyebrow { font-size: 0.7rem; letter-spacing: 0.25em; text-transform: uppercase; color: var(--gold); margin-bottom: 2rem; }
.hero-h1 { font-family: var(--serif); font-size: clamp(2rem, 3.5vw, 3.6rem); font-weight: 400; line-height: 1.15; color: var(--cream); margin-bottom: 1.2rem; }
.hero-h1 em { font-style: italic; color: var(--gold-lt); display: block; }
.hero-h2 { font-size: 0.9rem; letter-spacing: 0.08em; color: var(--cream-dim); margin-bottom: 3rem; text-transform: uppercase; }
.hero-actions { display: flex; gap: 1.2rem; flex-wrap: wrap; }
.btn-gold { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.9rem 2rem; background: var(--gold); color: var(--ink); font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase; text-decoration: none; font-weight: 600; transition: all 0.3s; }
.btn-gold:hover { background: var(--gold-lt); }
.btn-outline { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.9rem 2rem; border: 1px solid rgba(201,168,76,0.4); color: var(--cream-dim); font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase; text-decoration: none; transition: all 0.3s; }
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }

/* SECTIONS */
.section { padding: 8rem 3rem; }
.section-alt { background: var(--ink-2); }
.section-label { font-size: 0.65rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--gold); margin-bottom: 1.2rem; }
.section-h2 { font-family: var(--serif); font-size: clamp(2rem, 3vw, 3rem); font-weight: 400; line-height: 1.2; margin-bottom: 2rem; }
.section-h2 em { font-style: italic; color: var(--gold-lt); }
.container { max-width: 1100px; margin: 0 auto; }

/* SOBRE */
.sobre-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: start; margin-top: 4rem; }
.sobre-text p { color: var(--cream-dim); line-height: 2; margin-bottom: 1.6rem; font-size: 1rem; }
.sobre-text p strong { color: var(--cream); }
.sobre-credentials { display: flex; flex-direction: column; gap: 1rem; margin-top: 2rem; }
.cred-item { border-left: 2px solid var(--gold-dim); padding-left: 1.2rem; }
.cred-title { font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold); margin-bottom: 0.2rem; }
.cred-desc { font-size: 0.9rem; color: var(--cream-dim); }

/* TESE */
.tese-intro { max-width: 700px; color: var(--cream-dim); line-height: 2; margin-bottom: 4rem; font-size: 1rem; }
.equation-box { background: var(--ink-3); border: 1px solid rgba(201,168,76,0.2); padding: 2.5rem 3rem; margin: 3rem 0; text-align: center; }
.equation-label { font-size: 0.65rem; letter-spacing: 0.25em; text-transform: uppercase; color: var(--gold); margin-bottom: 1.2rem; }
.equation-math { font-family: var(--serif); font-size: clamp(1rem, 2vw, 1.4rem); color: var(--cream); font-style: italic; line-height: 1.8; }
.equation-math strong { color: var(--gold-lt); }
.pillars-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; margin: 3rem 0; }
.pillar-card { background: var(--ink-2); border: 1px solid rgba(201,168,76,0.1); padding: 2rem; }
.pillar-num { font-size: 0.65rem; letter-spacing: 0.2em; color: var(--gold); text-transform: uppercase; margin-bottom: 0.8rem; display: block; }
.pillar-title { font-family: var(--serif); font-size: 1.1rem; color: var(--cream); margin-bottom: 0.8rem; }
.pillar-text { font-size: 0.9rem; color: var(--cream-dim); line-height: 1.8; }
.casos-table { width: 100%; border-collapse: collapse; margin-top: 3rem; }
.casos-table th { font-size: 0.65rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); padding: 1rem 1.2rem; text-align: left; border-bottom: 1px solid rgba(201,168,76,0.2); }
.casos-table td { padding: 1.2rem; border-bottom: 1px solid rgba(255,255,255,0.04); color: var(--cream-dim); font-size: 0.9rem; line-height: 1.8; vertical-align: top; }
.casos-table td:first-child { color: var(--cream); font-weight: 500; white-space: nowrap; }

/* MANIFESTO */
.axiomas { display: flex; flex-direction: column; gap: 3rem; margin-top: 4rem; }
.axioma { display: grid; grid-template-columns: auto 1fr; gap: 2.5rem; align-items: start; padding-bottom: 3rem; border-bottom: 1px solid rgba(255,255,255,0.05); }
.axioma:last-child { border-bottom: none; }
.axioma-num { font-size: 0.65rem; letter-spacing: 0.2em; color: var(--gold); text-transform: uppercase; padding-top: 0.4rem; }
.axioma-quote { font-family: var(--serif); font-size: clamp(1.2rem, 2vw, 1.6rem); font-style: italic; color: var(--cream); line-height: 1.4; margin-bottom: 0.8rem; }
.axioma-text { font-size: 0.95rem; color: var(--cream-dim); line-height: 1.85; }

/* ECOSSISTEMA */
.eco-intro { font-family: var(--serif); font-size: clamp(1.4rem, 2.5vw, 2rem); font-style: italic; color: var(--gold-lt); max-width: 680px; margin-bottom: 4rem; line-height: 1.5; }
.eco-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; margin-top: 3rem; }
.eco-card { background: var(--ink-2); padding: 2.5rem; position: relative; overflow: hidden; transition: background 0.3s; }
.eco-card:hover { background: var(--ink-3); }
.eco-card::before { content: ''; position: absolute; top: 0; left: 0; width: 2px; height: 0; background: var(--gold); transition: height 0.4s var(--ease); }
.eco-card:hover::before { height: 100%; }
.eco-num { font-size: 0.65rem; letter-spacing: 0.2em; color: var(--gold); text-transform: uppercase; margin-bottom: 1rem; display: block; }
.eco-title { font-family: var(--serif); font-size: 1.2rem; color: var(--cream); margin-bottom: 1rem; }
.eco-text { font-size: 0.9rem; color: var(--cream-dim); line-height: 1.85; }

/* CONTATO */
.contato-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: start; margin-top: 4rem; }
.contato-form { display: flex; flex-direction: column; gap: 1rem; }
.form-input { width: 100%; background: rgba(255,255,255,0.03); border: 1px solid rgba(201,168,76,0.15); color: var(--cream); font-family: var(--sans); font-size: 0.9rem; padding: 1rem 1.2rem; outline: none; transition: border-color 0.3s; }
.form-input::placeholder { color: rgba(200,194,176,0.5); }
.form-input:focus { border-color: var(--gold); }
textarea.form-input { min-height: 130px; resize: vertical; }
.contato-info { display: flex; flex-direction: column; gap: 2rem; }
.info-item { border-left: 1px solid rgba(201,168,76,0.2); padding-left: 1.5rem; }
.info-label { font-size: 0.65rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); margin-bottom: 0.4rem; }
.info-value { font-size: 0.95rem; color: var(--cream-dim); }
.info-value a { color: var(--cream-dim); text-decoration: none; transition: color 0.3s; }
.info-value a:hover { color: var(--gold); }
.social-links { display: flex; flex-direction: column; gap: 0.8rem; margin-top: 1rem; }
.social-link { display: flex; align-items: center; gap: 0.8rem; padding: 0.9rem 1.2rem; border: 1px solid rgba(201,168,76,0.12); color: var(--cream-dim); text-decoration: none; font-size: 0.85rem; letter-spacing: 0.05em; transition: all 0.3s; }
.social-link:hover { border-color: var(--gold); color: var(--gold); }
.social-link svg { width: 18px; height: 18px; flex-shrink: 0; }

/* FOOTER */
footer { padding: 3rem; border-top: 1px solid rgba(255,255,255,0.05); display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; }
.footer-brand { font-family: var(--serif); font-size: 1rem; color: var(--cream); }
.footer-nav { display: flex; gap: 2rem; flex-wrap: wrap; }
.footer-nav a { font-size: 0.65rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--cream-dim); text-decoration: none; transition: color 0.3s; }
.footer-nav a:hover { color: var(--gold); }
.footer-oab { font-size: 0.7rem; color: rgba(200,194,176,0.5); letter-spacing: 0.05em; width: 100%; text-align: center; margin-top: 1rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,0.04); }

/* REVEAL */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }

/* VIDEO BG */
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center top; opacity: 0.18; }

/* MOBILE */
@media (max-width: 768px) {
  .nav { padding: 1.2rem 1.5rem; }
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--ink); padding: 2rem; gap: 1.5rem; border-bottom: 1px solid rgba(201,168,76,0.1); }
  .hero { padding: 0 1.5rem 4rem; }
  .section { padding: 5rem 1.5rem; }
  .sobre-grid, .contato-grid { grid-template-columns: 1fr; gap: 3rem; }
  .pillars-grid, .eco-grid { grid-template-columns: 1fr; }
  .axioma { grid-template-columns: 1fr; gap: 0.8rem; }
  .casos-table { display: block; overflow-x: auto; }
  footer { flex-direction: column; text-align: center; }
  .footer-nav { justify-content: center; }
}