/* =============================================================
   RAVO SYSTEM — Composições narrativas
   Seis atos. Cada bloco é composição, nunca card repetido.
   O eixo é a linha; a caixa é exceção justificada.
   ============================================================= */

/* -------------------------------------------------------------
   HERO — sistema vivo
   ------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: center;
  padding-top: 96px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1.18fr);
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
  width: 100%;
}

.hero-eyebrow { margin-bottom: 30px; display: flex; align-items: center; gap: 13px; }
.hero-eyebrow .pip { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); }

.hero h1 { max-width: 12ch; }

.hero-lede { margin-top: 26px; max-width: 40ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

/* Meta técnica sob o título: reforça o registro de sistema. */
.hero-meta {
  display: flex;
  gap: 26px;
  margin-top: 42px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.hero-meta div { display: grid; gap: 3px; }
.hero-meta b { font-size: 15px; font-weight: 600; letter-spacing: -0.01em; }

/* Palco do grafo vivo. */
.hero-stage { position: relative; }
.hero-stage svg { width: 100%; height: auto; overflow: visible; }

.sig { fill: var(--blue); }
.night .sig { fill: var(--blue-lift); }

.core-box { fill: #0B1220; }
.core-ring { fill: none; stroke: var(--blue); stroke-width: 1; opacity: .5; }
.core-halo {
  fill: none; stroke: var(--blue); stroke-width: 1;
  opacity: 0; transform-box: fill-box; transform-origin: center;
  animation: halo 3.4s ease-out infinite;
}
@keyframes halo {
  0%   { opacity: .5; transform: scale(1); }
  70%  { opacity: 0;  transform: scale(1.5); }
  100% { opacity: 0;  transform: scale(1.5); }
}

/* -------------------------------------------------------------
   STRIP DE SETORES — palavras nuas, zero card
   ------------------------------------------------------------- */

.strip { border-block: 1px solid var(--line); background: var(--surface); }
.strip-in {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 18px 46px; padding-block: 26px;
}
.strip-note { font-size: 13px; color: var(--ink-3); flex: none; }
.strip-words { display: flex; flex-wrap: wrap; gap: 12px 30px; }
.strip-words span {
  font-family: var(--mono); font-size: 11.5px; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-2);
  transition: color var(--t-fast) var(--out);
}
.strip-words span:hover { color: var(--blue); }

/* -------------------------------------------------------------
   STATEMENT — abertura de ato, tipografia grande, quase vazio
   ------------------------------------------------------------- */

.stmt { padding-block: clamp(96px, 13vw, 190px); }
.stmt-label { margin-bottom: 40px; display: flex; align-items: baseline; gap: 14px; }
.stmt-label .idx { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.08em; color: var(--blue); }

.stmt p {
  font-size: clamp(30px, 5.2vw, 68px);
  line-height: 1.04; letter-spacing: -0.04em; font-weight: 600;
  max-width: 17ch;
}
.stmt .fade { color: var(--ink-4); }
.night .stmt .fade { color: rgba(255,255,255,0.42); }

/* -------------------------------------------------------------
   OPERATING LAYER — cena presa (sticky), dirigida por scroll
   Três estágios: disperso → convergindo → distribuído.
   ------------------------------------------------------------- */

.scene { position: relative; }
.scene-rail { height: 300vh; }                 /* comprimento do scroll */
.scene-pin {
  position: sticky; top: 0;
  height: 100svh;
  display: grid; align-content: center;
  overflow: hidden;
}

.scene-head {
  position: absolute; top: clamp(74px, 12vh, 120px); left: 0; right: 0;
  text-align: center; pointer-events: none; padding-inline: var(--gutter);
}
.scene-head .mono { display: block; margin-bottom: 12px; }
.scene-head h2 {
  font-size: clamp(24px, 3.4vw, 44px); letter-spacing: -0.035em;
}
.scene-cap {
  position: absolute; bottom: clamp(40px, 7vh, 76px); left: 0; right: 0;
  text-align: center; font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--night-ink-3);
}
.scene-cap b { color: var(--blue-lift); font-weight: 500; }

.scene svg { width: 100%; height: auto; max-height: 60vh; overflow: visible; }

/* Estágios: cada grupo aparece conforme o estágio da cena. */
.st { opacity: 0; transition: opacity 620ms var(--out), transform 620ms var(--out); }
.scene[data-stage="0"] .st-src   { opacity: 1; }
.scene[data-stage="1"] .st-src   { opacity: .5; }
.scene[data-stage="1"] .st-conv  { opacity: 1; }
.scene[data-stage="1"] .st-core  { opacity: 1; }
.scene[data-stage="2"] .st-src   { opacity: .3; }
.scene[data-stage="2"] .st-conv  { opacity: .5; }
.scene[data-stage="2"] .st-core  { opacity: 1; }
.scene[data-stage="2"] .st-out   { opacity: 1; }
.scene[data-stage="2"] .st-flow  { opacity: 1; }

.scene .scene-head h2 span { transition: opacity var(--t-base); }
.scene[data-stage="0"] .scene-head h2 .a2,
.scene[data-stage="0"] .scene-head h2 .a3 { opacity: .32; }
.scene[data-stage="1"] .scene-head h2 .a3 { opacity: .32; }

/* -------------------------------------------------------------
   BUILD — quatro capacidades como linhas numeradas
   ------------------------------------------------------------- */

.rows { border-top: 1px solid var(--line); }
.night .rows { border-top-color: var(--night-line); }

.row {
  display: grid;
  grid-template-columns: 96px minmax(0, 0.8fr) minmax(0, 1.15fr);
  gap: clamp(20px, 3vw, 52px); align-items: start;
  padding-block: clamp(32px, 3.8vw, 52px);
  border-bottom: 1px solid var(--line);
  position: relative; transition: background var(--t-base) var(--out);
}
.night .row { border-bottom-color: var(--night-line); }
.row::before {
  content: ''; position: absolute; left: calc(var(--gutter) * -1); top: -1px;
  width: 3px; height: calc(100% + 1px); background: var(--blue);
  transform: scaleY(0); transform-origin: top; transition: transform var(--t-base) var(--out);
}
.row:hover::before { transform: scaleY(1); }
.row:hover { background: linear-gradient(90deg, var(--blue-wash), transparent 60%); }
.night .row:hover { background: linear-gradient(90deg, rgba(126,169,255,0.06), transparent 60%); }
.row-idx { font-family: var(--mono); font-size: 13px; color: var(--ink-4); padding-top: 5px; font-variant-numeric: tabular-nums; }
.night .row-idx { color: var(--night-ink-3); }
.row:hover .row-idx { color: var(--blue); }
.night .row:hover .row-idx { color: var(--blue-lift); }
.row-h { display: grid; gap: 10px; }
.row-meta { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.chip {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-3); border: 1px solid var(--line); border-radius: var(--r-xs); padding: 4px 8px;
}
.night .chip { border-color: var(--night-line); color: var(--night-ink-3); }

/* -------------------------------------------------------------
   THE SYSTEM — constelação. RAVO no centro, capacidades ao redor.
   Produtos revelados como descoberta, não catálogo.
   ------------------------------------------------------------- */

.system {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(40px, 6vw, 90px); align-items: center;
}
.constellation { position: relative; }
.constellation svg { width: 100%; height: auto; overflow: visible; }

.cap-node text { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; fill: var(--night-ink-2); }
.cap-node circle { fill: #0E1626; stroke: var(--night-line); stroke-width: 1; }

/* Descoberta de produtos: lista discreta que só nomeia. */
.disc { border-top: 1px solid var(--night-line); margin-top: 8px; }
.disc-row {
  display: flex; align-items: baseline; gap: 14px;
  padding-block: 14px; border-bottom: 1px solid var(--night-line-soft);
  transition: padding-left var(--t-base) var(--out);
}
.disc-row:hover { padding-left: 9px; }
.disc-row .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--night-ink-3); flex: none; transform: translateY(-2px); transition: background var(--t-fast), box-shadow var(--t-fast); }
.disc-row:hover .dot { background: var(--blue-lift); box-shadow: 0 0 0 4px rgba(126,169,255,0.15); }
.disc-row b { font-size: 16px; font-weight: 600; letter-spacing: -0.015em; }
.disc-row span { font-size: 13.5px; color: var(--night-ink-3); }
.disc-row em { margin-left: auto; font-family: var(--mono); font-style: normal; font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--night-ink-3); }

/* -------------------------------------------------------------
   THE PROOF — artefato de produto quase pleno
   ------------------------------------------------------------- */

.proof-head {
  display: flex; align-items: baseline; justify-content: space-between;
  flex-wrap: wrap; gap: 12px; margin-bottom: 24px;
}
.proof-id { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-4); }

.artifact {
  position: relative; border: 1px solid var(--line); border-radius: var(--r-md);
  overflow: hidden; background: var(--surface);
  box-shadow: 0 40px 90px -50px rgba(11,27,43,0.5);
}
.artifact-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 11px 15px; border-bottom: 1px solid var(--line); background: var(--surface-sunken);
}
.artifact-bar i { width: 8px; height: 8px; border-radius: 50%; background: var(--line-strong); }
.artifact-bar b { margin-left: 8px; font-family: var(--mono); font-weight: 500; font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); }
.artifact-bar em { margin-left: auto; font-family: var(--mono); font-style: normal; font-size: 10px; letter-spacing: 0.12em; color: var(--blue); }
.artifact img { width: 100%; height: auto; display: block; }
.artifact-cap { margin-top: 13px; font-size: 12.5px; color: var(--ink-4); }

/* Faixa de saídas sob o artefato principal. */
.pipe {
  display: flex; align-items: center; justify-content: center; flex-wrap: wrap;
  gap: 14px 12px; margin-top: 34px;
}
.pipe span {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-3);
}
.pipe .arrow { color: var(--ink-4); }

.proof-pair {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(18px, 2.4vw, 30px);
  margin-top: clamp(22px, 3vw, 34px);
}
.proof-pair .artifact { box-shadow: 0 24px 60px -44px rgba(11,27,43,0.45); }

/* -------------------------------------------------------------
   ARCHITECTURE — pilha que se separa no scroll
   ------------------------------------------------------------- */

.arch-scene { position: relative; }
.arch-rail { height: 240vh; }
.arch-pin { position: sticky; top: 0; height: 100svh; display: grid; align-content: center; }

.arch-head { text-align: center; margin-bottom: clamp(30px, 4.4vh, 52px); }
.arch-head h2 { font-size: clamp(26px, 3.6vw, 48px); letter-spacing: -0.035em; }

.stack { max-width: 720px; margin: 0 auto; width: 100%; display: grid; gap: 10px; }
.slab {
  --i: 0;
  display: grid; grid-template-columns: 54px 190px 1fr;
  gap: clamp(12px, 2vw, 28px); align-items: center;
  padding: clamp(15px, 2vw, 22px) clamp(16px, 2.2vw, 26px);
  border: 1px solid var(--night-line); border-radius: var(--r-sm);
  background: rgba(255,255,255,0.02);
  transform: translateY(calc((0.5 - var(--p, 0.5)) * var(--i) * -9px));
  transition: border-color var(--t-fast);
}
.slab:hover { border-color: rgba(126,169,255,0.4); }
.slab-idx { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; color: var(--night-ink-3); }
.slab b { font-size: 15.5px; font-weight: 600; letter-spacing: -0.015em; }
.slab span { font-size: 13.5px; color: var(--night-ink-2); }
.slab--core { background: rgba(21,94,239,0.16); border-color: rgba(126,169,255,0.24); }
.slab--core .slab-idx { color: var(--blue-lift); }

/* -------------------------------------------------------------
   MANIFESTO — cinematográfico, revelação por palavra
   ------------------------------------------------------------- */

.manifesto { padding-block: clamp(120px, 20vh, 240px); }
.manifesto p {
  font-size: clamp(30px, 5.6vw, 82px); line-height: 1.05;
  letter-spacing: -0.042em; font-weight: 600; max-width: 18ch;
}
.manifesto .w { opacity: 0.16; transition: opacity 520ms var(--out); }
.manifesto.lit .w { opacity: 1; }
.manifesto .fade { color: rgba(255,255,255,0.5); }
.manifesto-tail {
  margin-top: clamp(30px, 5vh, 60px);
  opacity: 0; transform: translateY(14px);
  transition: opacity var(--t-slow) var(--out) 400ms, transform var(--t-slow) var(--out) 400ms;
}
.manifesto.lit .manifesto-tail { opacity: 1; transform: none; }

/* -------------------------------------------------------------
   FINAL
   ------------------------------------------------------------- */

.final-grid {
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(34px, 5vw, 80px); align-items: end;
}
.final h2 { font-size: clamp(34px, 5vw, 72px); letter-spacing: -0.04em; max-width: 13ch; }

/* -------------------------------------------------------------
   FOOTER
   ------------------------------------------------------------- */

.foot { border-top: 1px solid var(--night-line); }
.foot-top {
  display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 56px); padding-block: clamp(48px, 6vw, 76px);
}
.foot h5 { font-family: var(--mono); font-size: 10.5px; font-weight: 500; letter-spacing: 0.15em; text-transform: uppercase; color: var(--night-ink-3); margin-bottom: 17px; }
.foot li { margin-bottom: 11px; }
.foot li a { font-size: 14.5px; color: var(--night-ink-2); transition: color var(--t-fast); }
.foot li a:hover { color: var(--night-ink); }
.foot-base { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; padding-block: 24px; border-top: 1px solid var(--night-line-soft); }
.foot-base p { font-size: 13px; color: var(--night-ink-3); }

/* -------------------------------------------------------------
   RESPONSIVO
   ------------------------------------------------------------- */

@media (max-width: 1000px) {
  .hero-grid, .system, .final-grid { grid-template-columns: 1fr; }
  .hero-stage { margin-top: 8px; }
  .row { grid-template-columns: 64px 1fr; }
  .row > :last-child { grid-column: 2; }
  .slab { grid-template-columns: 44px 1fr; }
  .slab > :last-child { grid-column: 2; }
  .foot-top { grid-template-columns: 1fr 1fr; }
  .proof-pair { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .hero { min-height: auto; padding-top: 120px; padding-bottom: 40px; }
  .hero-meta { flex-wrap: wrap; gap: 18px 26px; }
  .strip-in { flex-direction: column; align-items: flex-start; gap: 14px; }
  .row { grid-template-columns: 44px 1fr; gap: 14px; }
  .foot-top { grid-template-columns: 1fr; gap: 30px; }
  /* No mobile, cenas de scroll viram blocos estáticos legíveis. */
  .scene-rail, .arch-rail { height: auto; }
  .scene-pin, .arch-pin { position: static; height: auto; padding-block: clamp(80px, 14vw, 120px); }
  .scene[data-stage] .st { opacity: 1 !important; }
  .scene .scene-head h2 span { opacity: 1 !important; }
  .scene-head { position: static; margin-bottom: 32px; }
  .scene-cap { position: static; margin-top: 26px; }
  .slab { transform: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  .core-halo, .sig { animation: none; }
  .manifesto .w { opacity: 1; }
  .manifesto-tail { opacity: 1; transform: none; }
  .slab { transform: none !important; }
}

/* =============================================================
   PÁGINA DE PRODUTO — composições internas
   ============================================================= */

/* Hero de página interna: registro do sistema, mais contido que a home. */
.phero { padding-top: clamp(128px, 17vh, 190px); padding-bottom: clamp(48px, 7vw, 84px); }
.phero-kick { display: flex; align-items: baseline; gap: 14px; margin-bottom: 28px; }
.phero-kick .idx { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.08em; color: var(--blue); }
.phero h1 { font-size: clamp(38px, 5.2vw, 74px); letter-spacing: -0.04em; line-height: 1.0; max-width: 16ch; }
.phero-lede { margin-top: 26px; max-width: 54ch; }

/* Fluxo horizontal do negócio: etapas ligadas por trilho, sem card. */
.flow { border-top: 1px solid var(--line); margin-top: clamp(36px, 5vw, 60px); }
.night .flow { border-top-color: var(--night-line); }
.flow-grid {
  display: grid; grid-template-columns: repeat(6, 1fr);
  position: relative; padding-top: 46px;
}
.flow-grid::before { content: ''; position: absolute; top: 7px; left: 0; right: 0; height: 1px; background: var(--line); }
.night .flow-grid::before { background: var(--night-line); }
.fstep { position: relative; padding-right: 16px; }
.fstep::before {
  content: ''; position: absolute; top: -46px; left: 0; width: 13px; height: 13px; border-radius: 50%;
  background: var(--paper); border: 1px solid var(--line-strong); transition: background var(--t-base), border-color var(--t-base);
}
.night .fstep::before { background: var(--night); border-color: rgba(255,255,255,0.22); }
.fstep:hover::before { background: var(--blue); border-color: var(--blue); }
.fstep .fi { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; color: var(--blue); display: block; margin-bottom: 9px; }
.fstep b { display: block; font-size: 14.5px; font-weight: 600; letter-spacing: -0.015em; margin-bottom: 5px; }
.fstep span { font-size: 12.5px; color: var(--ink-3); line-height: 1.5; }
.night .fstep span { color: var(--night-ink-3); }

/* Grade de módulos do produto. */
.mods {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--r-sm); overflow: hidden;
}
.night .mods { background: var(--night-line); border-color: var(--night-line); }
.mod { background: var(--surface); padding: 22px 20px 24px; transition: background var(--t-fast) var(--out); }
.night .mod { background: #0B1220; }
.mod:hover { background: var(--blue-wash); }
.night .mod:hover { background: rgba(126,169,255,0.06); }
.mod .mi { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; color: var(--ink-4); }
.night .mod .mi { color: var(--night-ink-3); }
.mod b { display: block; font-size: 16px; font-weight: 600; letter-spacing: -0.015em; margin: 12px 0 7px; }
.mod span { font-size: 13.5px; color: var(--ink-3); line-height: 1.55; }
.night .mod b { color: var(--night-ink); }
.night .mod span { color: var(--night-ink-2); }

/* Duas colunas texto + artefato, alinhadas ao centro. */
.pcol { display: grid; grid-template-columns: minmax(0,0.92fr) minmax(0,1.08fr); gap: clamp(40px,6vw,84px); align-items: center; }
.pcol--flip > :first-child { order: 2; }

@media (max-width: 1000px) {
  .flow-grid { grid-template-columns: repeat(3, 1fr); gap: 40px 20px; }
  .mods { grid-template-columns: repeat(2, 1fr); }
  .pcol, .pcol--flip { grid-template-columns: 1fr; }
  .pcol--flip > :first-child { order: 0; }
}
@media (max-width: 620px) {
  .flow-grid { grid-template-columns: 1fr 1fr; }
  .mods { grid-template-columns: 1fr; }
}