/* xiii.capital */

:root {
  --logo-black:   #000000;
  --logo-xiii:    #1c1c1c;
  --logo-capital: #5a5a5a;
  --logo-muted:   #737373;
  --logo-soft:    #9a9a9a;
  --logo-silver:  #c8c8c8;
  --logo-pale:    #e4e4e4;
  --logo-white:   #ffffff;
  --logo-bg:      #ffffff;
  --surface-frost: rgba(235, 235, 235, 0.72);
  --surface-frost-footer: rgba(240, 240, 240, 0.82);

  --bg-deep:      #000000;
  --bg-base:      #080808;
  --bg-raised:    #111111;
  --bg-soft:      #1a1a1a;

  --text-primary:   var(--logo-pale);
  --text-secondary: var(--logo-soft);
  --text-muted:     var(--logo-muted);
  --text-heading:   var(--logo-pale);

  --text-dark:        var(--logo-xiii);
  --text-dark-muted:  #4a4a4a;
  --text-dark-soft:   #666666;

  --line-dark:  rgba(255, 255, 255, 0.08);
  --line-mid:   rgba(255, 255, 255, 0.14);
  --line-light: rgba(0, 0, 0, 0.08);

  --font: 'Inter', system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header: clamp(56px, 12vw, 72px);
  --space-page: clamp(1rem, 4vw, 3rem);
  --space-section: clamp(1.5rem, 5vw, 4rem);
  --content-max: min(900px, 92vw);
  --logo-page-w: min(768px, 90vw);
  --logo-page-sm-w: min(384px, 88vw);
  --logo-header-h: calc(var(--header) - clamp(12px, 2vw, 16px));
  --hero-strip-h: clamp(48px, 10vw, 96px);
}

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

html { scroll-behavior: auto; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text-secondary);
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

.container {
  width: min(1140px, 92vw);
  margin: 0 auto;
}

/* Logo — logo.png limpo; sem filtros em cima */
.logo {
  display: block;
  line-height: 0;
  position: relative;
  z-index: 2;
}

.logo img {
  display: block;
}

.logo--header {
  display: flex;
  align-items: center;
  height: 100%;
  flex-shrink: 0;
}

.logo--header img {
  height: var(--logo-header-h);
  width: auto;
  max-width: 100%;
}

.logo--page {
  width: 100%;
  max-width: var(--logo-page-w);
}

.logo--page img {
  width: 100%;
  height: auto;
}

.logo--page-sm {
  width: 100%;
  max-width: var(--logo-page-sm-w);
  margin: 0 auto;
}

.logo--page-sm img {
  width: 100%;
  height: auto;
}

.logo--footer img {
  height: 22px;
  width: auto;
}

#world {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* Header */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  min-height: var(--header);
  height: var(--header);
  display: flex;
  align-items: center;
  padding: 0 var(--space-page);
  gap: clamp(0.5rem, 2vw, 1.5rem);
  background: var(--logo-bg);
  border-bottom: 1px solid var(--line-light);
}

.nav {
  display: flex;
  gap: clamp(0.5rem, 2vw, 1.5rem);
  margin-left: auto;
  flex-shrink: 1;
  min-width: 0;
}

.nav a {
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dark-soft);
  transition: color 0.35s;
}

.nav a:hover { color: var(--logo-black); }

.lang-switch {
  display: flex;
  border: 1px solid var(--line-light);
  flex-shrink: 0;
}

.lang-btn {
  font-family: var(--font);
  font-size: 0.5625rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dark-soft);
  background: transparent;
  border: none;
  padding: 0.45rem 0.65rem;
  cursor: pointer;
  transition: color 0.3s, background 0.3s;
}

.lang-btn + .lang-btn { border-left: 1px solid var(--line-light); }
.lang-btn.is-active { color: #fff; background: var(--logo-black); }
.lang-btn:hover:not(.is-active) { color: var(--logo-black); }

.scroll-root { position: relative; z-index: 1; }

.stage {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding:
    calc(var(--header) + var(--space-section))
    var(--space-page)
    var(--space-section);
  position: relative;
  overflow: hidden;
}

.stage-inner {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}

.stage-inner.is-visible,
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}

/* Hero — fundo cinzento sólido, texto preto */
.stage-hero {
  display: grid;
  grid-template-rows: 1fr auto auto;
  align-items: center;
  justify-items: center;
  text-align: center;
  position: relative;
  background: #e8e8e8;
  padding-bottom: 0;
  gap: clamp(1rem, 3vw, 1.75rem);
}

.stage-hero .stage-inner {
  grid-row: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 3vw, 1.75rem);
  width: var(--content-max);
  max-width: 100%;
  opacity: 1;
  transform: none;
  padding: clamp(0.5rem, 2vw, 1rem) 0;
}

.hero-line {
  font-size: clamp(0.5rem, 2.2vw, 0.625rem);
  letter-spacing: clamp(0.14em, 1.5vw, 0.28em);
  text-transform: uppercase;
  color: #000000;
  font-weight: 500;
  max-width: 100%;
  line-height: 1.5;
}

.hero-desc {
  font-size: clamp(0.6875rem, 2.5vw, 0.8125rem);
  font-weight: 400;
  color: #000000;
  letter-spacing: clamp(0.02em, 0.5vw, 0.06em);
  max-width: 100%;
  line-height: 1.6;
}

.hero-strip {
  grid-row: 3;
  position: relative;
  width: 100%;
  max-width: 100%;
  display: flex;
  gap: 2px;
  height: var(--hero-strip-h);
  overflow: hidden;
  opacity: 0.45;
  flex-shrink: 0;
  mask-image: linear-gradient(to top, black 30%, transparent);
}

.hero-strip img {
  flex: 1;
  min-width: 0;
  height: 100%;
  object-fit: cover;
}

.scroll-cue {
  grid-row: 2;
  position: relative;
  left: auto;
  bottom: auto;
  transform: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.625rem;
  color: #000000;
  font-weight: 500;
  font-size: clamp(0.5rem, 2vw, 0.5625rem);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.scroll-cue i {
  display: block;
  width: 1px;
  height: 32px;
  background: linear-gradient(#000000, transparent);
  animation: cue 2.4s var(--ease) infinite;
}

@keyframes cue {
  0%, 100% { opacity: 0.25; transform: scaleY(0.5); }
  50% { opacity: 0.8; transform: scaleY(1); }
}

.stage-split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  background: transparent;
  border-top: 1px solid var(--line-dark);
}

.stage-split--flip { direction: rtl; }
.stage-split--flip > * { direction: ltr; }

.stage-media {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
  width: 100%;
}

.media-main {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 1px solid var(--line-dark);
  display: block;
}

.media-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 4px;
}

.media-row img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid var(--line-dark);
  display: block;
}

#hub .media-row {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stage-inner--text {
  width: 100%;
  max-width: 380px;
  justify-self: center;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: clamp(1.25rem, 4vw, 2rem) clamp(1.25rem, 4vw, 2.25rem);
  border: 1px solid var(--line-dark);
}

.section-head { margin-bottom: 2.5rem; }

.section-head h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--text-heading);
  margin: 0.5rem 0 0;
}

.verticais-header {
  padding: 4rem 0 1rem;
  background: transparent;
  border-top: 1px solid var(--line-dark);
}

.verticais-header .container {
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 2rem 2.5rem;
  border: 1px solid var(--line-dark);
}

.verticais-header .stage-num { color: var(--logo-capital); }
.verticais-header h2 { color: var(--text-heading); }

.stage-num {
  display: block;
  font-size: 0.5625rem;
  letter-spacing: 0.3em;
  color: var(--logo-capital);
  margin-bottom: 1rem;
}

.stage h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--text-heading);
  margin-bottom: 0.875rem;
  line-height: 1.1;
}

.stage p {
  font-size: 0.9375rem;
  font-weight: 300;
  line-height: 1.75;
  color: var(--text-secondary);
}

.stage-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.stage-tags li {
  font-size: 0.5625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--line-mid);
  color: var(--logo-soft);
}

.stage-manifesto {
  justify-content: center;
  text-align: center;
  position: relative;
  background: transparent;
  border-top: 1px solid var(--line-light);
}

.stage-manifesto::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--surface-frost);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.stage-manifesto > * {
  position: relative;
  z-index: 1;
}

.stage-contact {
  justify-content: center;
  text-align: center;
  background: transparent;
  border-top: 1px solid var(--line-dark);
}

.stage-inner--center {
  margin: 0 auto;
  text-align: center;
  width: 100%;
  max-width: min(480px, 92vw);
}

.stage-manifesto .stage-inner--center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(1.25rem, 4vw, 2rem);
}

.stage-contact .stage-inner--center {
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: clamp(1.5rem, 5vw, 2.5rem) clamp(1.25rem, 4vw, 3rem);
  border: 1px solid var(--line-dark);
  width: 100%;
  max-width: min(480px, 92vw);
}

.stage-contact .stage-num {
  font-size: 2rem;
  letter-spacing: 0;
  font-weight: 300;
  color: var(--logo-capital);
}

.contact-sub {
  margin: 0.75rem 0 2rem;
  color: var(--logo-muted) !important;
}

.contact-mail {
  font-size: 0.875rem;
  color: var(--logo-pale);
  border-bottom: 1px solid var(--line-mid);
  padding-bottom: 2px;
  transition: border-color 0.35s, color 0.35s;
}

.contact-mail:hover {
  border-color: var(--logo-silver);
  color: var(--logo-white);
}

.stage-manifesto blockquote {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  font-weight: 300;
  color: var(--text-dark);
  font-style: normal;
  max-width: 100%;
}

.footer {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.5rem var(--space-page);
  background: var(--logo-bg);
  border-top: 1px solid var(--line-light);
}

.footer span {
  font-size: 0.5rem;
  letter-spacing: 0.06em;
  color: var(--text-dark-soft);
  white-space: nowrap;
}

/* Tablet */
@media (max-width: 900px) {
  .stage-split {
    grid-template-columns: 1fr;
    gap: clamp(1.25rem, 4vw, 2rem);
  }

  .stage-split--flip { direction: ltr; }

  .stage-inner--text {
    max-width: 100%;
  }

  .media-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .verticais-header {
    padding: clamp(2rem, 6vw, 4rem) 0 1rem;
  }

  .verticais-header .container {
    padding: clamp(1.25rem, 4vw, 2rem) clamp(1.25rem, 4vw, 2.5rem);
  }
}

/* Mobile */
@media (max-width: 600px) {
  .nav a {
    font-size: clamp(0.4375rem, 2.8vw, 0.5625rem);
    letter-spacing: 0.12em;
  }

  .lang-btn {
    font-size: 0.5rem;
    padding: 0.4rem 0.5rem;
  }

  .media-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #hub .media-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .stage-tags li {
    font-size: 0.5rem;
    padding: 0.35rem 0.6rem;
  }

  .hero-strip {
    opacity: 0.35;
  }
}

@media (max-width: 400px) {
  .nav {
    gap: 0.375rem;
  }

  .nav a {
    letter-spacing: 0.08em;
  }

  .scroll-cue {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .stage-inner, .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-cue i { animation: none; }
}