@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,400&family=Manrope:wght@400;500;600;700&display=swap');

:root{
  --bg:         oklch(18% 0.04 262);
  --bg-raised:  oklch(22% 0.042 262);
  --bg-panel:   oklch(26% 0.044 262);
  --line:       oklch(35% 0.04 262);
  --ink:        oklch(94% 0.015 80);
  --ink-dim:    oklch(74% 0.025 78);
  --ink-faint:  oklch(56% 0.025 78);
  --gold:       oklch(78% 0.13 80);
  --gold-bright:oklch(87% 0.11 90);
  --gold-deep:  oklch(52% 0.11 65);

  --serif: 'Fraunces', 'Iowan Old Style', serif;
  --sans: 'Manrope', system-ui, sans-serif;

  --container: min(72rem, 92vw);
  --space-xs: clamp(0.5rem, 0.4rem + 0.4vw, 0.75rem);
  --space-s:  clamp(1rem, 0.8rem + 0.7vw, 1.5rem);
  --space-m:  clamp(1.75rem, 1.3rem + 1.6vw, 2.75rem);
  --space-l:  clamp(3rem, 2rem + 3.5vw, 5.5rem);
  --space-xl: clamp(5rem, 3rem + 7vw, 10rem);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*{ box-sizing: border-box; margin:0; padding:0; }
html{ color-scheme: dark; scroll-behavior: smooth; }
body{
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: clamp(1rem, 0.94rem + 0.25vw, 1.09rem);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before{
  content: "";
  position: fixed; inset: 0;
  background-image:
    radial-gradient(ellipse 60% 40% at 85% -5%, oklch(52% 0.11 65 / 0.16), transparent),
    radial-gradient(ellipse 50% 35% at -5% 60%, oklch(52% 0.11 65 / 0.08), transparent);
  pointer-events: none;
  z-index: 0;
}

img,svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration: none; }
ul{ list-style: none; }
button{ font: inherit; cursor: pointer; }

h1,h2,h3,h4{
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.08;
  color: var(--ink);
}

.eyebrow{
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 0.75em;
}
.eyebrow::before{
  content:"";
  width: 2rem; height: 1px;
  background: var(--gold-deep);
}

.wrap{
  width: var(--container);
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

/* ---------- Logo ---------- */
.logo{
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.logo svg{
  height: clamp(2.2rem, 2rem + 0.8vw, 2.8rem);
  width: auto;
  display: block;
}
.logo-word{
  display: flex;
  flex-direction: column;
  line-height: 1;
  /* As pirâmides ocupam só y=10..86 do viewBox, então a caixa do SVG tem mais
     vazio embaixo (14%) que em cima (10%). O align-items:center alinha pela
     caixa e joga o texto pra baixo da base visível — isto compensa. */
  transform: translateY(-1.5px);
}
.logo-word b{
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.15rem, 1.05rem + 0.4vw, 1.45rem);
  letter-spacing: 0.09em;
  color: var(--ink);
}
.logo-word small{
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.55rem;
  color: var(--gold);
  margin-top: 0.18rem;
  display: flex;
  align-items: center;
  gap: 0.4em;
}
/* Traços laterais do "SYSTEMS" — preenchem o que sobra da largura do OPHIRA */
.logo-word small::before,
.logo-word small::after{
  content: "";
  flex: 1;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}
.logo-word small span{
  letter-spacing: 0.55em;
  /* letter-spacing também sobra depois da última letra; anula pra centralizar */
  margin-right: -0.55em;
  white-space: nowrap;
}
/* ---------- Header ---------- */
header{
  position: fixed; inset: 0 0 auto 0;
  z-index: 50;
  padding: var(--space-xs) 0;
  background: color-mix(in oklch, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--ease), background 0.4s var(--ease);
}
header.scrolled{
  border-bottom-color: var(--line);
  background: color-mix(in oklch, var(--bg) 92%, transparent);
}
header .wrap{
  display: flex;
  align-items: center;
  justify-content: space-between;
}
nav ul{ display: flex; gap: var(--space-m); }
nav a{
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--ink-dim);
  position: relative;
  padding-block: 0.3rem;
  transition: color 0.25s var(--ease);
}
nav a:hover{ color: var(--ink); }
nav a::after{
  content:"";
  position: absolute; left:0; right:100%; bottom: -2px;
  height: 1px; background: var(--gold);
  transition: right 0.35s var(--ease);
}
nav a:hover::after{ right: 0; }

.nav-toggle{ display:none; }

.btn{
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.35rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border-radius: 2px;
  border: 1px solid var(--gold-deep);
  transition: all 0.3s var(--ease);
  white-space: nowrap;
}
.btn-primary{
  background: linear-gradient(155deg, var(--gold-bright), var(--gold-deep));
  color: oklch(18% 0.03 262);
  border-color: transparent;
}
.btn-primary:hover{ filter: brightness(1.12); transform: translateY(-1px); }
.btn-ghost{ color: var(--ink); }
.btn-ghost:hover{ border-color: var(--gold); color: var(--gold-bright); }

/* ---------- Hero ---------- */
.hero{
  position: relative;
  padding: clamp(8rem, 6rem + 8vw, 12rem) 0 var(--space-xl);
  overflow: hidden;
}
.hero-grid{
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: var(--space-l);
  align-items: end;
}
.hero h1{
  font-size: clamp(2.6rem, 1.9rem + 3.2vw, 5rem);
  max-width: 15ch;
  margin-block: var(--space-s) var(--space-m);
}
.hero h1 em{
  font-style: italic;
  color: var(--gold-bright);
}
.hero-lede{
  color: var(--ink-dim);
  font-size: clamp(1.02rem, 0.97rem + 0.25vw, 1.18rem);
  max-width: 42ch;
  margin-bottom: var(--space-m);
}
.hero-actions{ display: flex; gap: 1rem; align-items: center; }
.hero-side{
  border-left: 1px solid var(--line);
  padding-left: var(--space-m);
  display: flex;
  flex-direction: column;
  gap: var(--space-m);
}
.hero-stat b{
  font-family: var(--serif);
  font-size: clamp(2rem, 1.7rem + 1vw, 2.6rem);
  color: var(--gold);
  display: block;
  font-weight: 500;
}
.hero-stat span{
  font-size: 0.8rem;
  color: var(--ink-faint);
}

.marquee{
  margin-top: var(--space-xl);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding-block: var(--space-s);
  overflow: hidden;
  white-space: nowrap;
}
.marquee-track{
  display: inline-flex;
  gap: 3.5rem;
  animation: scroll 28s linear infinite;
}
.marquee span{
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--ink-faint);
}
@keyframes scroll{
  to{ transform: translateX(-50%); }
}

/* ---------- Section shell ---------- */
section{ position: relative; padding-block: var(--space-xl); }
.section-head{
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: var(--space-m);
  margin-bottom: var(--space-l);
}
.section-head h2{ font-size: clamp(1.9rem, 1.6rem + 1.4vw, 3rem); margin-top: var(--space-xs); }
.section-head p{ color: var(--ink-dim); max-width: 30ch; text-align: right; }

/* ---------- About ---------- */
.about{ border-top: 1px solid var(--line); }
.about-grid{
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-l);
}
.about-copy p{ color: var(--ink-dim); margin-bottom: 1.1em; max-width: 54ch; }
.about-copy p:first-of-type{
  font-family: var(--serif);
  font-size: 1.3rem;
  color: var(--ink);
  line-height: 1.5;
}
.pillars{ display: flex; flex-direction: column; }
.pillar{
  padding-block: var(--space-s);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: var(--space-s);
}
.pillar:last-child{ border-bottom: 1px solid var(--line); }
.pillar .num{
  font-family: var(--serif);
  color: var(--gold-deep);
  font-size: 1.2rem;
}
.pillar h3{ font-size: 1.1rem; margin-bottom: 0.35rem; font-weight: 600; }
.pillar p{ color: var(--ink-faint); font-size: 0.92rem; }

/* ---------- Services ---------- */
.services{ background: var(--bg-raised); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.service-row{
  display: grid;
  grid-template-columns: 5rem 1fr 1.1fr;
  gap: var(--space-m);
  align-items: start;
  padding-block: var(--space-m);
  border-top: 1px solid var(--line);
  transition: background 0.35s var(--ease);
}
.service-row:last-child{ border-bottom: 1px solid var(--line); }
.service-row:hover{ background: color-mix(in oklch, var(--gold) 5%, transparent); }
.service-row .num{ font-family: var(--serif); font-size: 1.3rem; color: var(--gold-deep); }
.service-row h3{ font-size: clamp(1.3rem, 1.15rem + 0.6vw, 1.7rem); font-weight: 500; }
.service-row p{ color: var(--ink-dim); font-size: 0.95rem; max-width: 46ch; }
.service-row .tags{ display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.75rem; }
.service-row .tags span{
  font-size: 0.72rem;
  color: var(--ink-faint);
  border: 1px solid var(--line);
  padding: 0.25rem 0.6rem;
  border-radius: 100px;
}

/* ---------- Approach ---------- */
.approach-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-m);
}
.step{ position: relative; padding-top: var(--space-m); }
.step::before{
  content: attr(data-step);
  font-family: var(--serif);
  font-style: italic;
  font-size: 3.2rem;
  color: transparent;
  -webkit-text-stroke: 1px var(--gold-deep);
  display: block;
  margin-bottom: 0.5rem;
}
.step h3{ font-size: 1.15rem; margin-bottom: 0.5rem; font-weight: 600; }
.step p{ color: var(--ink-faint); font-size: 0.9rem; }
.step:not(:last-child){ border-right: 1px solid var(--line); padding-right: var(--space-m); }

/* ---------- CTA band ---------- */
.cta-band{
  border-top: 1px solid var(--line);
  background: var(--bg-panel);
}
.cta-band .wrap{
  display: grid;
  grid-template-columns: 1.4fr auto;
  align-items: center;
  gap: var(--space-m);
}
.cta-band h2{ font-size: clamp(1.7rem, 1.4rem + 1.3vw, 2.6rem); max-width: 18ch; }

/* ---------- Contact ---------- */
.contact-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}
.contact-info dl{ margin-top: var(--space-m); }
.contact-info dt{
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: var(--space-s);
}
.contact-info dd{ font-family: var(--serif); font-size: 1.2rem; margin-top: 0.3rem; }
.contact-info dd a:hover{ color: var(--gold); }

form{ display: flex; flex-direction: column; gap: var(--space-s); }
.field{ display: flex; flex-direction: column; gap: 0.5rem; position: relative; }
.field label{
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.field input, .field textarea, .field select{
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  padding-block: 0.6rem;
  transition: border-color 0.3s var(--ease);
}
.field select option{ background: var(--bg-raised); }
.field input:focus, .field textarea:focus, .field select:focus{
  outline: none;
  border-color: var(--gold);
}
.field textarea{ resize: vertical; min-height: 5rem; }
.form-note{ font-size: 0.78rem; color: var(--ink-faint); margin-top: 0.25rem; }
.form-status{ font-size: 0.85rem; color: var(--gold-bright); min-height: 1.2em; }
.form-status.is-error{ color: oklch(72% 0.15 30); }

/* Honeypot — fora da tela para humanos, preenchível por robô */
.hp{
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

/* ---------- Footer ---------- */
footer{
  border-top: 1px solid var(--line);
  padding-block: var(--space-m);
}
footer .wrap{
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-s);
}
.footer-links{ display: flex; gap: var(--space-m); }
.footer-links a{ font-size: 0.85rem; color: var(--ink-faint); }
.footer-links a:hover{ color: var(--gold); }
footer small{ color: var(--ink-faint); font-size: 0.78rem; }

/* ---------- Reveal on scroll ---------- */
[data-reveal]{
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
[data-reveal].is-visible{ opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  nav ul{ display:none; }
  .nav-toggle{
    display: inline-flex;
    align-items:center; justify-content:center;
    width: 2.4rem; height: 2.4rem;
    border: 1px solid var(--line);
    background: transparent; color: var(--ink);
  }
  .hero-grid, .about-grid, .contact-grid{ grid-template-columns: 1fr; }
  .hero-side{ border-left:none; border-top: 1px solid var(--line); padding-left:0; padding-top: var(--space-m); flex-direction: row; flex-wrap: wrap; }
  .approach-grid{ grid-template-columns: 1fr 1fr; }
  .step:nth-child(2){ border-right:none; }
  .step:not(:last-child){ border-right: 1px solid var(--line); }
  .service-row{ grid-template-columns: 1fr; }
  .section-head{ grid-template-columns: 1fr; }
  .section-head p{ text-align: left; }
  .cta-band .wrap{ grid-template-columns: 1fr; text-align: left; }
}
@media (max-width: 560px){
  .approach-grid{ grid-template-columns: 1fr; }
  .step{ border-right: none !important; padding-right: 0; }
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}