/* ────────────────────────────────────────────────────────────────────────────
   Eduardo Walneide — "O Instrumento de Medição"
   Navy + prata + Syncopate/Lato. A página se comporta como o instrumento que
   o consultor é: régua lateral com marcador de scroll, escala cognitiva como
   divisor, crop-marks no retrato, tipografia monumental.
   ──────────────────────────────────────────────────────────────────────────── */

:root {
  --navy: #010C29;
  --navy-mid: #071642;
  --navy-deep: #000817;
  --silver: #B5B5AD;
  --silver-light: #D4D4CC;
  --silver-dim: #7A7A74;
  --white: #F0F0EE;
  --hairline: rgba(181, 181, 173, 0.12);
  --hairline-strong: rgba(181, 181, 173, 0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--navy);
  color: var(--white);
  font-family: 'Lato', sans-serif;
  font-weight: 300;
  overflow-x: clip;
  line-height: 1.6;
}

/* grain */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 30;
  opacity: 0.4;
}

::selection { background: var(--silver); color: var(--navy); }

/* ── progress hairline ── */
.progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 100%;
  background: var(--silver);
  transform-origin: 0 50%;
  transform: scaleX(0);
  z-index: 200;
  opacity: 0.85;
}

/* ── régua lateral ── */
.rail {
  position: fixed;
  top: 0; bottom: 0; left: 0;
  width: 44px;
  border-right: 1px solid var(--hairline);
  z-index: 90;
  pointer-events: none;
}
.rail-ticks {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 23px,
    var(--hairline-strong) 23px,
    var(--hairline-strong) 24px
  );
  background-position: right;
  background-size: 12px 100%;
  background-repeat: no-repeat;
}
.rail-marker {
  position: absolute;
  right: -4px;
  top: 0;
  width: 8px;
  height: 8px;
  background: var(--silver);
  transform: rotate(45deg);
  transition: top 0.15s linear;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.6rem 4rem 1.6rem calc(44px + 3rem);
  transition: background 0.35s ease, border-color 0.35s ease, padding 0.35s ease, transform 0.4s ease;
  border-bottom: 1px solid transparent;
}
nav.scrolled {
  background: rgba(1, 12, 41, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--hairline);
  padding-top: 1rem;
  padding-bottom: 1rem;
}
.nav-logo img { height: 34px; width: auto; opacity: 0.92; display: block; }
.nav-links { display: flex; align-items: center; gap: 2.4rem; }
.nav-links a {
  color: var(--silver);
  text-decoration: none;
  font-family: 'Syncopate', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  transition: color 0.3s;
}
.nav-links a:hover { color: var(--white); }
.nav-links a.nav-cta {
  border: 1px solid var(--silver-dim);
  padding: 0.65rem 1.5rem;
  color: var(--white);
  transition: border-color 0.3s, background 0.3s;
}
.nav-links a.nav-cta:hover { border-color: var(--silver); background: rgba(181, 181, 173, 0.08); }

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 8rem 4rem 6rem calc(44px + 4rem);
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--hairline) 1px, transparent 1px),
    linear-gradient(90deg, var(--hairline) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: radial-gradient(ellipse 85% 75% at 35% 45%, black 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 85% 75% at 35% 45%, black 0%, transparent 72%);
  opacity: 0.45;
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(181, 181, 173, 0.08) 0%, transparent 62%);
  transform: translate(-50%, -50%);
  left: 30%;
  top: 45%;
  pointer-events: none;
  transition: left 1.2s cubic-bezier(0.16, 1, 0.3, 1), top 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.hero-inner { position: relative; z-index: 1; max-width: 1100px; }

.hero-eyebrow {
  font-family: 'Syncopate', sans-serif;
  font-size: 0.52rem;
  letter-spacing: 0.42em;
  color: var(--silver-dim);
  text-transform: uppercase;
  margin-bottom: 2.6rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  animation: fadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.1s both;
}
.hero-eyebrow::before { content: ''; width: 34px; height: 1px; background: var(--silver-dim); }

.hero-name {
  font-family: 'Syncopate', sans-serif;
  font-size: clamp(3rem, 9.5vw, 8.6rem);
  font-weight: 700;
  line-height: 0.96;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--white);
}
.hero-name .h-line { display: block; overflow: hidden; }
.hero-name .h-line > span {
  display: block;
  animation: riseIn 1s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.hero-name .h-line:nth-child(1) > span { animation-delay: 0.25s; }
.hero-name .h-line:nth-child(2) > span { animation-delay: 0.38s; color: var(--silver); }

.hero-role {
  margin-top: 1.6rem;
  font-family: 'Syncopate', sans-serif;
  font-size: clamp(0.62rem, 1.1vw, 0.8rem);
  letter-spacing: 0.55em;
  text-transform: uppercase;
  color: var(--silver);
  animation: fadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.6s both;
}

.hero-thesis {
  margin-top: 2.8rem;
  font-size: clamp(1.02rem, 1.5vw, 1.25rem);
  line-height: 1.85;
  color: var(--silver);
  max-width: 560px;
  animation: fadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.72s both;
}
.hero-thesis strong { color: var(--white); font-weight: 400; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-top: 3.2rem;
  animation: fadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.84s both;
}

.scroll-cue {
  position: absolute;
  left: calc(44px + 4rem);
  bottom: 2.2rem;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  font-family: 'Syncopate', sans-serif;
  font-size: 0.45rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--silver-dim);
  animation: fadeUp 0.9s ease 1.4s both;
}
.scroll-cue::after {
  content: '';
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, var(--silver-dim), transparent);
  animation: cueDrop 2.2s ease-in-out infinite;
  transform-origin: top;
}

/* ── BUTTONS ── */
.btn-primary {
  background: var(--silver);
  color: var(--navy);
  padding: 1.1rem 2.6rem;
  font-family: 'Syncopate', sans-serif;
  font-size: 0.76rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  font-weight: 700;
  transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
  display: inline-block;
}
.btn-primary:hover {
  background: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 14px 36px -16px rgba(181, 181, 173, 0.6);
}
.btn-lg { padding: 1.3rem 3.4rem; font-size: 0.85rem; }

.btn-ghost {
  border: 1px solid var(--silver-dim);
  color: var(--silver-light);
  padding: 1.1rem 2.6rem;
  font-family: 'Syncopate', sans-serif;
  font-size: 0.76rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  transition: border-color 0.3s, color 0.3s, background 0.3s;
  display: inline-block;
}
.btn-ghost:hover { border-color: var(--silver-light); color: var(--white); background: rgba(181, 181, 173, 0.06); }

/* ── SCALE BAND (assinatura) ── */
.scale-band {
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: 1.4rem 0;
  overflow: hidden;
  background: var(--navy-deep);
  position: relative;
  z-index: 1;
}
.scale-track {
  display: flex;
  align-items: center;
  gap: 3.5rem;
  padding: 0 4rem 0 calc(44px + 4rem);
  white-space: nowrap;
}
.scale-item {
  font-family: 'Syncopate', sans-serif;
  font-size: 0.5rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--silver-dim);
  display: inline-flex;
  align-items: baseline;
  gap: 0.7rem;
}
.scale-item b {
  font-size: 0.9rem;
  color: var(--silver);
  font-weight: 700;
}
.scale-legend {
  margin-left: auto;
  font-family: 'Syncopate', sans-serif;
  font-size: 0.44rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--silver-dim);
  opacity: 0.7;
}

/* ── SECTIONS ── */
section {
  position: relative;
  z-index: 1;
  padding: 9rem 4rem 9rem calc(44px + 4rem);
}
.container { max-width: 1200px; margin: 0 auto; }

.section-label {
  font-family: 'Syncopate', sans-serif;
  font-size: 0.52rem;
  letter-spacing: 0.5em;
  color: var(--silver-dim);
  text-transform: uppercase;
  margin-bottom: 1.4rem;
  display: flex;
  align-items: baseline;
  gap: 1rem;
}
.section-label::before {
  content: '';
  width: 30px;
  height: 1px;
  background: var(--silver-dim);
  transform: translateY(-0.2em);
}
.sec-num {
  font-family: 'Syncopate', sans-serif;
  font-size: 0.52rem;
  letter-spacing: 0.3em;
  color: var(--silver);
  font-variant-numeric: tabular-nums;
}
.sec-num::after { content: ' /'; color: var(--silver-dim); }

.section-title {
  font-family: 'Syncopate', sans-serif;
  font-size: clamp(1.9rem, 3.6vw, 3.4rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--white);
  line-height: 1.08;
}
.section-title em {
  font-style: normal;
  color: var(--silver);
  font-weight: 400;
  display: block;
  font-size: 0.74em;
  letter-spacing: 0.08em;
  margin-top: 0.25em;
}

.section-intro {
  margin-top: 2.4rem;
  max-width: 620px;
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--silver);
}

.dark-band {
  background: var(--navy-mid);
  border-top: 1px solid rgba(181, 181, 173, 0.08);
  border-bottom: 1px solid rgba(181, 181, 173, 0.08);
}

/* ── SOBRE ── */
.sobre-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 5.5rem;
  align-items: start;
}
.prose { margin-top: 2.4rem; }
.prose p {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--silver);
  margin-bottom: 1.3rem;
}
.prose p strong { color: var(--white); font-weight: 400; }

.pillars {
  margin-top: 3rem;
  border-top: 1px solid var(--hairline-strong);
}
.pillar {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--hairline);
  align-items: baseline;
}
.pillar-key {
  font-family: 'Syncopate', sans-serif;
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--white);
}
.pillar p { font-size: 0.9rem; color: var(--silver-dim); line-height: 1.75; }

.sobre-photo {
  position: relative;
  padding: 1.2rem;
  margin-top: 1rem;
}
.sobre-photo img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(35%) contrast(1.02);
  transition: filter 0.6s ease;
}
.sobre-photo:hover img { filter: grayscale(0%) contrast(1); }
.sobre-photo figcaption {
  margin-top: 1.1rem;
  font-family: 'Syncopate', sans-serif;
  font-size: 0.46rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--silver-dim);
  text-align: center;
}
/* crop-marks */
.sobre-photo::before,
.sobre-photo::after,
.sobre-photo .corner-b::before,
.sobre-photo .corner-b::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: var(--silver-dim);
  border-style: solid;
}
.sobre-photo::before { top: 0; left: 0; border-width: 1px 0 0 1px; }
.sobre-photo::after { top: 0; right: 0; border-width: 1px 1px 0 0; }
.sobre-photo .corner-b::before { bottom: 0; left: 0; border-width: 0 0 1px 1px; }
.sobre-photo .corner-b::after { bottom: 0; right: 0; border-width: 0 1px 1px 0; }

/* ── MÉTODO (steps) ── */
.steps-rail { position: relative; margin-top: 4.5rem; }
.steps-rail::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--silver-dim);
  opacity: 0.5;
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 1.4s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}
.steps-rail.visible::before { transform: scaleX(1); }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  padding-top: 2.6rem;
}
.step {
  position: relative;
  opacity: 0;
  transform: translateY(18px);
}
.steps-rail.visible .step {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.steps-rail.visible .step:nth-child(1) { transition-delay: 0.15s; }
.steps-rail.visible .step:nth-child(2) { transition-delay: 0.35s; }
.steps-rail.visible .step:nth-child(3) { transition-delay: 0.55s; }
.step::before {
  content: '';
  position: absolute;
  top: -2.6rem;
  left: 0.2rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--navy-mid);
  border: 1px solid var(--silver);
  transform: translateY(-3px);
}
.step-num {
  font-family: 'Syncopate', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: rgba(181, 181, 173, 0.12);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.step h3 {
  margin-top: 1.3rem;
  font-family: 'Syncopate', sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  line-height: 1.5;
}
.step p {
  margin-top: 1.1rem;
  font-size: 0.9rem;
  color: var(--silver-dim);
  line-height: 1.8;
}

/* ── SERVIÇOS (lista editorial) ── */
.services {
  margin-top: 4rem;
  border-top: 1px solid var(--hairline-strong);
}
.service {
  display: grid;
  grid-template-columns: 220px 1fr auto;
  align-items: center;
  gap: 2.5rem;
  padding: 2.4rem 1rem;
  border-bottom: 1px solid var(--hairline);
  text-decoration: none;
  position: relative;
  transition: background 0.35s, padding-left 0.35s;
}
.service:hover { background: rgba(181, 181, 173, 0.035); padding-left: 2rem; }

.service-tag {
  font-family: 'Syncopate', sans-serif;
  font-size: 0.5rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--silver-dim);
  transition: color 0.35s;
}
.service:hover .service-tag { color: var(--silver); }

.service-name {
  font-family: 'Syncopate', sans-serif;
  font-size: clamp(0.95rem, 1.9vw, 1.5rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--silver-light);
  transition: color 0.35s;
  line-height: 1.35;
}
.service:hover .service-name { color: var(--white); }

.service-arrow {
  font-size: 1.5rem;
  color: var(--silver-dim);
  opacity: 0;
  transform: translateX(-10px);
  transition: opacity 0.35s, transform 0.35s, color 0.35s;
}
.service:hover .service-arrow { opacity: 1; transform: translateX(0); color: var(--silver); }

/* ── CTA ── */
.cta-band {
  text-align: center;
  padding-top: 11rem;
  padding-bottom: 11rem;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 80vw; height: 80vw;
  max-width: 900px; max-height: 900px;
  background: radial-gradient(circle, rgba(181, 181, 173, 0.06) 0%, transparent 60%);
  pointer-events: none;
}
.cta-band > * { position: relative; }
.cta-band .section-label { justify-content: center; }
.cta-band .section-label::before { display: none; }
.cta-desc {
  margin: 2rem auto 3rem;
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--silver);
  max-width: 520px;
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--hairline);
  padding: 3.5rem 4rem 3.5rem calc(44px + 4rem);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  background: var(--navy-deep);
  position: relative;
  z-index: 1;
}
footer img { height: 26px; width: auto; opacity: 0.7; }
footer p {
  font-size: 0.72rem;
  color: var(--silver-dim);
  letter-spacing: 0.06em;
}

/* ── REVEALS ── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1), transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-stagger.visible > * { opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.18s; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.31s; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.44s; }

/* ── KEYFRAMES ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes riseIn {
  from { opacity: 0; transform: translateY(105%); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes cueDrop {
  0% { transform: scaleY(0); opacity: 0; }
  35% { transform: scaleY(1); opacity: 1; }
  70% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}

/* ── REDUCED MOTION ── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-delay: 0s !important;
    transition-duration: 0.001s !important;
    transition-delay: 0s !important;
  }
  .reveal, .reveal-stagger > *, .step { opacity: 1 !important; transform: none !important; }
  .steps-rail::before { transform: scaleX(1) !important; }
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .rail { display: none; }
  nav { padding: 1.4rem 2.5rem; }
  section { padding: 6.5rem 2.5rem; }
  .hero { padding: 8rem 2.5rem 5rem; }
  .scroll-cue { left: 2.5rem; }
  .scale-track { padding: 0 2.5rem; gap: 2.2rem; overflow-x: auto; }
  .sobre-grid { grid-template-columns: 1fr; gap: 3.5rem; }
  .sobre-photo { max-width: 460px; }
  .steps { grid-template-columns: 1fr; gap: 2.6rem; }
  .steps-rail::before { display: none; }
  .step::before { display: none; }
  .service { grid-template-columns: 1fr auto; }
  .service-tag { grid-column: 1 / -1; }
  footer { padding: 3rem 2.5rem; }
}
@media (max-width: 560px) {
  nav { padding: 1.1rem 1.5rem; }
  .nav-links { gap: 1.2rem; }
  .nav-links a:not(.nav-cta) { display: none; }
  section { padding: 5rem 1.5rem; }
  .hero { padding: 7.5rem 1.5rem 4.5rem; }
  .scroll-cue { display: none; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-ghost { text-align: center; }
  .pillar { grid-template-columns: 1fr; gap: 0.5rem; }
  .scale-legend { display: none; }
}