:root {
  --black: #0a0a0a;
  --white: #f5f3ef;
  --cream: #ede9e1;
  --gray: #9a9690;
  --gray-light: #d4d0c8;
  --accent: #2a5c45;
  --accent-light: #3d7a5e;
  --gold: #c9a84c;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--white);
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  overflow-x: hidden;
}

/* NAV */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.5rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  mix-blend-mode: normal;
}

nav::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10,10,10,0.95), transparent);
  pointer-events: none;
}

.nav-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--white);
  text-decoration: none;
  position: relative;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
  position: relative;
}

.nav-links a {
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gray);
  text-decoration: none;
  transition: color 0.3s;
  font-weight: 400;
}
.nav-links a:hover { color: var(--white); }

.nav-cta {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--white) !important;
  border: 0.5px solid rgba(245,243,239,0.3);
  padding: 0.5rem 1.25rem;
  transition: border-color 0.3s, background 0.3s !important;
  position: relative;
}
.nav-cta:hover {
  background: rgba(255,255,255,0.05) !important;
  border-color: var(--white) !important;
}

/* MOBILE NAV TOGGLE (hamburger) */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--white);
  padding: 4px;
  cursor: pointer;
  position: relative;
  z-index: 110;
  transition: color 0.3s;
}
.nav-toggle:hover { color: var(--gold); }
.nav-toggle svg { width: 26px; height: 26px; display: block; }

/* MOBILE MENU OVERLAY */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.25rem;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(42,92,69,0.22) 0%, transparent 60%),
    var(--black);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-12px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.mobile-menu.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.mobile-menu a {
  font-family: 'Cormorant Garamond', serif;
  font-size: 30px;
  font-weight: 300;
  letter-spacing: 1px;
  color: var(--white);
  text-decoration: none;
  transition: color 0.3s;
}
.mobile-menu a:hover,
.mobile-menu a:active { color: var(--gold); }
.mobile-menu .nav-cta {
  margin-top: 1rem;
  font-family: 'Jost', sans-serif;
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--white) !important;
  border: 0.5px solid rgba(245,243,239,0.35);
  padding: 0.85rem 2rem;
}
.mobile-menu .nav-cta:hover { border-color: var(--gold); color: var(--gold) !important; }

.mobile-menu-close {
  position: absolute;
  top: 1.4rem; right: 1.5rem;
  background: none;
  border: none;
  color: var(--white);
  padding: 4px;
  cursor: pointer;
  z-index: 210;
  transition: color 0.3s;
}
.mobile-menu-close:hover { color: var(--gold); }
.mobile-menu-close svg { width: 30px; height: 30px; display: block; }

/* HERO */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 3rem 5rem;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(42,92,69,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 40% 60% at 10% 80%, rgba(201,168,76,0.06) 0%, transparent 50%),
    var(--black);
}

.hero-grain {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-line {
  position: absolute;
  top: 0; bottom: 0;
  left: 55%;
  width: 0.5px;
  background: linear-gradient(to bottom, transparent, rgba(245,243,239,0.06) 30%, rgba(245,243,239,0.06) 70%, transparent);
  pointer-events: none;
}

.hero-tag {
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 400;
  margin-bottom: 2rem;
  position: relative;
  opacity: 0;
  animation: fadeUp 1s 0.3s forwards;
}

.hero-headline {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(52px, 8vw, 110px);
  font-weight: 300;
  line-height: 1.0;
  letter-spacing: -2px;
  position: relative;
  opacity: 0;
  animation: fadeUp 1s 0.5s forwards;
  max-width: 900px;
}

.hero-headline em {
  font-style: italic;
  color: var(--gray);
}

.hero-sub {
  margin-top: 2.5rem;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
  max-width: 420px;
  position: relative;
  opacity: 0;
  animation: fadeUp 1s 0.7s forwards;
}

.hero-sub strong { color: var(--white); font-weight: 400; }

.hero-bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-top: 4rem;
  position: relative;
  opacity: 0;
  animation: fadeUp 1s 0.9s forwards;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--white);
  text-decoration: none;
  border-bottom: 0.5px solid var(--gold);
  padding-bottom: 4px;
  transition: gap 0.3s;
}
.hero-cta:hover { gap: 20px; }
.hero-cta span { color: var(--gold); }

.hero-scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gray);
}

.scroll-line {
  width: 0.5px;
  height: 48px;
  background: linear-gradient(to bottom, var(--gray), transparent);
  animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* SECTIONS COMMON */
section {
  padding: 8rem 3rem;
  position: relative;
}

.section-label {
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 400;
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 0.5px;
  background: var(--gold);
}

.section-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -1px;
}

.section-title em { font-style: italic; color: var(--gray); }

/* PROBLEMA */
#problema {
  background: var(--black);
  border-top: 0.5px solid rgba(255,255,255,0.05);
}

.problema-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  margin-top: 5rem;
  align-items: start;
}

.problema-texto {
  font-size: 16px;
  line-height: 2;
  color: var(--gray);
  max-width: 480px;
}

.problema-texto strong { color: var(--white); font-weight: 400; }

.problema-insight {
  font-family: 'Cormorant Garamond', serif;
  font-size: 28px;
  font-weight: 300;
  font-style: italic;
  line-height: 1.5;
  color: var(--white);
  border-left: 1px solid var(--gold);
  padding-left: 2rem;
  position: sticky;
  top: 8rem;
}

.dores {
  margin-top: 5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 0.5px solid rgba(255,255,255,0.08);
}

.dor-item {
  padding: 2.5rem;
  border-right: 0.5px solid rgba(255,255,255,0.08);
  transition: background 0.4s;
}
.dor-item:last-child { border-right: none; }
.dor-item:hover { background: rgba(255,255,255,0.02); }

.dor-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 48px;
  font-weight: 300;
  color: rgba(245,243,239,0.06);
  line-height: 1;
  margin-bottom: 1.5rem;
}

.dor-title {
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 1px;
  margin-bottom: 0.75rem;
  color: var(--white);
}

.dor-desc {
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray);
}

/* SOLUCAO */
#solucao {
  background: linear-gradient(135deg, #0f1a14 0%, var(--black) 60%);
}

.solucao-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.solucao-inner .section-label { justify-content: center; }
.solucao-inner .section-label::before { display: none; }

.manifesto-lines {
  margin-top: 4rem;
  list-style: none;
}

.manifesto-lines li {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(18px, 2.5vw, 26px);
  font-weight: 300;
  line-height: 1.6;
  color: rgba(245,243,239,0.35);
  padding: 1rem 0;
  border-bottom: 0.5px solid rgba(255,255,255,0.06);
  transition: color 0.5s;
}

.manifesto-lines li.active { color: var(--white); }
.manifesto-lines li:last-child {
  border-bottom: none;
  color: var(--gold);
  font-weight: 400;
  font-size: clamp(20px, 3vw, 30px);
  padding-top: 2rem;
}

/* PRODUTOS */
#produtos {
  background: var(--black);
  border-top: 0.5px solid rgba(255,255,255,0.05);
}

.produtos-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 5rem;
}

.produtos-sub {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
  max-width: 380px;
  text-align: right;
}

.produtos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.06);
}

.produto-card {
  background: var(--black);
  padding: 3rem;
  transition: background 0.4s;
  position: relative;
  overflow: hidden;
}

.produto-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 2px;
  height: 0;
  background: var(--gold);
  transition: height 0.4s;
}

.produto-card:hover { background: #0f0f0f; }
.produto-card:hover::before { height: 100%; }

.produto-tag {
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 1.5rem;
  font-weight: 400;
}

.produto-nome {
  font-family: 'Cormorant Garamond', serif;
  font-size: 42px;
  font-weight: 300;
  letter-spacing: -1px;
  margin-bottom: 0.5rem;
  line-height: 1;
}

.produto-categoria {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 1.5rem;
  font-weight: 400;
}

.produto-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
  max-width: 380px;
}

.produto-status {
  margin-top: 2rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gray);
}

.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gray);
}

.status-dot.live { background: #4caf7d; box-shadow: 0 0 6px rgba(76,175,125,0.5); }
.status-dot.dev { background: var(--gold); }

/* EXPERTISE */
#expertise {
  background: #070707;
  border-top: 0.5px solid rgba(255,255,255,0.05);
}

.expertise-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: end;
  margin-bottom: 5rem;
}

.expertise-sub {
  font-size: 15px;
  line-height: 1.85;
  color: var(--gray);
}

.expertise-sub strong { color: var(--white); font-weight: 400; }

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.06);
}

.expertise-card {
  background: #070707;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  transition: background 0.4s;
}

.expertise-card:hover { background: #0d0d0d; }

.expertise-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
  transform: scaleX(0);
  transition: transform 0.5s;
}

.expertise-card:hover::after { transform: scaleX(1); }

.expertise-glyph {
  font-family: 'Cormorant Garamond', serif;
  font-size: 52px;
  font-weight: 300;
  color: rgba(201,168,76,0.12);
  line-height: 1;
  margin-bottom: 1.5rem;
  display: block;
}

.expertise-title {
  font-size: 15px;
  font-weight: 400;
  color: var(--white);
  letter-spacing: 0.3px;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.expertise-desc {
  font-size: 13px;
  line-height: 1.8;
  color: var(--gray);
}

/* FAKE vertical-case for nav compat */
.vertical-case {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 0.5px solid rgba(255,255,255,0.06);
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--gray);
}

.vertical-case strong {
  color: var(--gold);
  font-weight: 400;
  display: block;
  margin-bottom: 4px;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* MODELO */
#modelo {
  background: var(--black);
  border-top: 0.5px solid rgba(255,255,255,0.05);
}

.modelo-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 6rem;
  margin-top: 5rem;
  align-items: start;
}

.modelo-intro {
  font-size: 15px;
  line-height: 1.9;
  color: var(--gray);
  position: sticky;
  top: 8rem;
}

.modelo-intro strong { color: var(--white); font-weight: 400; }

.modelo-items {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.modelo-item {
  padding: 2.5rem 0;
  border-bottom: 0.5px solid rgba(255,255,255,0.07);
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  align-items: start;
  transition: padding-left 0.4s;
}

.modelo-item:hover { padding-left: 1rem; }
.modelo-item:first-child { padding-top: 0; }

.modelo-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 48px;
  font-weight: 300;
  color: rgba(255,255,255,0.1);
  line-height: 1;
  padding-top: 4px;
}

.modelo-content {}

.modelo-title {
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 0.5px;
  margin-bottom: 0.75rem;
  color: var(--white);
}

.modelo-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

/* CONTATO */
#contato {
  background: linear-gradient(135deg, #0a1a10 0%, var(--black) 70%);
  border-top: 0.5px solid rgba(255,255,255,0.05);
  text-align: center;
  padding: 10rem 3rem;
}

.contato-inner { max-width: 700px; margin: 0 auto; }

.contato-pre {
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 2rem;
}

.contato-headline {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(40px, 6vw, 80px);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 2rem;
}

.contato-headline em { font-style: italic; color: var(--gray); }

.contato-sub {
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
  margin-bottom: 3.5rem;
}

.contato-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--black);
  background: var(--white);
  text-decoration: none;
  padding: 1.1rem 2.5rem;
  transition: background 0.3s, gap 0.3s;
  font-weight: 400;
}

.contato-btn:hover {
  background: var(--cream);
  gap: 20px;
}

.contato-btn span { font-size: 16px; }

/* FOOTER */
footer {
  padding: 2.5rem 3rem;
  border-top: 0.5px solid rgba(255,255,255,0.07);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.footer-dot {
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--gray);
}

.footer-sub {
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gray);
}

.footer-copy {
  font-size: 11px;
  color: rgba(154,150,144,0.5);
  letter-spacing: 1px;
}

/* REVEAL ANIMATIONS */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* SCROLLBAR */
::-webkit-scrollbar { width: 2px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--gray); }

/* MOBILE */
@media (max-width: 768px) {
  nav { padding: 1.25rem 1.5rem; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .mobile-menu { display: flex; }
  section { padding: 5rem 1.5rem; }
  #hero { padding: 0 1.5rem 4rem; }
  .problema-grid { grid-template-columns: 1fr; gap: 3rem; }
  .dores { grid-template-columns: 1fr; }
  .dor-item { border-right: none; border-bottom: 0.5px solid rgba(255,255,255,0.08); }
  .produtos-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .produtos-sub { text-align: left; }
  .produtos-grid { grid-template-columns: 1fr; }
  .expertise-intro { grid-template-columns: 1fr; gap: 2rem; }
  .expertise-grid { grid-template-columns: 1fr; }
  .modelo-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .modelo-intro { position: static; }
  footer { flex-direction: column; gap: 1rem; text-align: center; }
  .problema-insight { position: static; }
}