/* Ponto de Cultura 2026 — Past · Present · Future
   Palette: the pamphlet's paper and the four Dikenga colours, with
   Capoeira Brasil's yellow as the sun and its navy as water/night. */
:root {
  --paper: #EBA98C;
  --paper-2: #E39B7D;
  --paper-light: #F4DCCB;
  --page: #F6F2EC;
  --ink: #1B1412;
  --ink-soft: #4A3A33;
  --rust: #6E1F12;
  --brush: #B23A1F;
  --kala: #161212;
  --tukula: #A3301F;
  --luvemba: #FBF8F2;
  --musoni: #DB6A2C;
  --sun: #FFB700;
  --navy: #2B3170;

  --f-body: 'Poppins', system-ui, sans-serif;
  --f-brush: 'Knewave', 'Permanent Marker', cursive;
  --f-marker: 'Permanent Marker', cursive;
  --f-type: 'Special Elite', 'Courier New', monospace;
  --f-display: 'Lexend Deca', 'Poppins', sans-serif;

  --read: 52svh;
  --grain: url("assets/grain.svg");
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* language switch: one page, two languages, never both at once */
html[data-lang="en"] [data-l="pt"],
html[data-lang="pt"] [data-l="en"] { display: none !important; }

/* ───────── fixed chrome ───────── */
.chrome {
  position: fixed; z-index: 50;
  top: calc(env(safe-area-inset-top, 0px) + 20px);
  left: 12px; right: 12px;
  display: flex; justify-content: space-between; align-items: center;
  pointer-events: none;
}
.chrome > * { pointer-events: auto; }
.lang {
  display: flex; gap: 2px; padding: 3px;
  background: rgba(27, 20, 18, .78);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  border-radius: 999px;
  box-shadow: 0 2px 10px rgba(0,0,0,.18);
}
.lang button {
  font: 600 13px/1 var(--f-body); letter-spacing: .06em;
  color: var(--paper-light); background: transparent;
  border: 0; border-radius: 999px; padding: 9px 13px; cursor: pointer;
  transition: background .25s, color .25s;
}
.lang button[aria-pressed="true"] { background: var(--sun); color: var(--ink); }
.lang button:focus-visible, .dial:focus-visible { outline: 2px solid var(--sun); outline-offset: 2px; }
.dial {
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(27, 20, 18, .78);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  display: grid; place-items: center;
  box-shadow: 0 2px 10px rgba(0,0,0,.18);
}
.dial svg { width: 38px; height: 38px; overflow: visible; }
.dial-ring { fill: none; stroke: var(--paper-light); stroke-width: 1.6; }
.dial-cross { stroke: var(--paper-light); stroke-width: 1.2; }

/* ───────── scrollytelling sections ───────── */
.scrolly { position: relative; }
.stage {
  position: sticky; top: 0;
  height: 100vh;
  overflow: hidden;
}
/* Depth: sky at the back, boxes of text in the middle, diagram in front.
   A box sits above the diagram while it is read, and drops behind it
   (.behind) as it leaves. .steps sets no z-index, so each box layers itself. */
.stage-back { z-index: 0; }
.stage-front { z-index: 2; pointer-events: none; }
.stage-back + .stage-front { margin-top: -100vh; }
.steps { position: relative; margin-top: -100vh; }
.sky { position: absolute; inset: 0; background: var(--paper); }
.sky::after, .back::before, .card.page::before, .card.note::before, #ppf::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: var(--grain); background-size: 260px 260px;
  opacity: .5; mix-blend-mode: multiply; border-radius: inherit;
}
.stars { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; }
.stars circle { fill: #FFF6DE; animation: twinkle 3.2s ease-in-out infinite alternate; }
@keyframes twinkle { from { opacity: .25; } to { opacity: 1; } }
.diagram { position: absolute; left: 0; top: 0; overflow: visible; }

.step {
  position: relative;
  min-height: 82vh; min-height: 82svh;
  padding: var(--read) 16px 0;
}
.step-cover { min-height: 100vh; min-height: 100svh; padding: 0; }
.step-spacer { min-height: 100vh; min-height: 100svh; padding: 0; }
/* every box pins while its words unfold; app.js sizes each step for that */
.step > .card { position: sticky; top: var(--read); z-index: 3; }
.step > .card.behind { z-index: 1; }
.step-end { min-height: 70svh; display: grid; place-items: start center; }

.card {
  position: relative;
  max-width: 560px; margin: 0 auto;
  border-radius: 18px;
  will-change: opacity, transform;
  transform: scale(var(--depth, 1));   /* shrinks a touch as it recedes behind the diagram */
  transform-origin: 50% 0;             /* …from its top edge, so its measured top stays put */
}
.card.page {
  background: var(--page);
  padding: 20px 20px 18px;
  box-shadow: 0 10px 30px rgba(27,20,18,.16), 0 1px 0 rgba(255,255,255,.6) inset;
}
.card > * { position: relative; }
/* typing caret: where the next words will appear (placed by app.js) */
.card > .caret {
  position: absolute; left: 0; top: 0; width: 2px; height: 1.2em;
  border-radius: 1px; background: currentColor;
  opacity: 0; pointer-events: none;
}
.card > .caret.show { opacity: 1; animation: caret-blink 1.06s steps(1, end) infinite; }
@keyframes caret-blink { 50% { opacity: 0; } }
.card.page p { margin: 0 0 .6em; }
.card.page p:last-child { margin-bottom: 0; }
.card.note {
  background: #FBE9DC;
  border: 1.5px dashed rgba(110,31,18,.45);
  color: #5A170C;
  font-family: var(--f-type);
  font-size: 19px; line-height: 1.45;
  padding: 16px 18px;
  box-shadow: 0 8px 22px rgba(110,31,18,.18);
  transform: rotate(-.6deg) scale(var(--depth, 1));
}
.card.note p { margin: 0; position: relative; }
.card.note p + p { margin-top: .55em; }
.card.lead { font-size: 19px; font-weight: 500; }

h2.brush {
  font-family: var(--f-brush); font-weight: 400;
  font-size: clamp(30px, 8.6vw, 52px);
  line-height: 1.02; letter-spacing: .005em;
  margin: 0 0 .45em;
  transform: rotate(-2deg); transform-origin: left bottom;
}

/* the five words of the cycle light up as the sun passes their moment */
.w, .c {
  border-radius: 4px;
  background-image: linear-gradient(transparent 58%, var(--hl) 58%, var(--hl) 92%, transparent 92%);
  background-repeat: no-repeat;
  background-size: 0% 100%;
  --hl: rgba(255,183,0,.62);
}
.w {
  transition: background-size .55s cubic-bezier(.3,.7,.2,1);
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
}
/* highlight only — no weight change, which would re-wrap the lines and nudge the box */
.w.on { background-size: 100% 100%; }
.w:has(> .rw:not(.on)) { background-size: 0% 100%; }   /* not yet unfolded: no mark */
/* Boxes unfold one chunk at a time (a sentence or clause, data-k in the
   markup). A chunk's words ripple in quickly, left to right (--j = the word's
   place in its chunk); the words still to come keep their space, invisible, so
   the box never jumps. In Past · Present · Future the newest chunk's key phrase
   is highlighted; it sweeps in with the words and fades when the next arrives. */
@property --hl { syntax: '<color>'; inherits: false; initial-value: rgba(255,183,0,0); }
.c {
  --hl: rgba(255,183,0,0);
  background-size: 0% 100%;
  transition: --hl .45s ease, background-size .55s cubic-bezier(.3,.7,.2,1);
  -webkit-box-decoration-break: slice; box-decoration-break: slice;
}
.c.cur { --hl: rgba(255,183,0,.62); background-size: 100% 100%; transition-delay: .12s; }
.rw { opacity: 0; transition: opacity .28s ease; transition-delay: calc(var(--j, 0) * 32ms); }
.rw.on { opacity: 1; }
.rw:not(.on) { transition-delay: 0s; }       /* scrolling back: gone at once */
html.jumping .rw { transition: none; }       /* a tap-jump shows boxes in full at once */

/* stage dots in the main story can be tapped (see spinTo / jumpToStage in app.js) */
.hit { pointer-events: none; }
.taps .hit { pointer-events: all; cursor: pointer; -webkit-tap-highlight-color: transparent; transition: fill .2s ease; }
.taps .hit:hover { fill: rgba(255, 183, 0, .16); }

/* progress + "keep scrolling" under a pinned paragraph */
.pin-foot { display: flex; align-items: center; gap: 12px; margin-top: 14px; }
.pin-bar { flex: 1; height: 4px; border-radius: 2px; background: rgba(27,20,18,.12); overflow: hidden; }
.pin-bar i { display: block; height: 100%; background: var(--sun); transform-origin: left center; transform: scaleX(0); }
.pin-cue {
  display: flex; align-items: center; gap: 5px; white-space: nowrap;
  font: 600 11.5px/1 var(--f-body); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft);
}
.pin-cue svg { width: 16px; height: 16px; fill: none; stroke: var(--brush); stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; animation: nudge 1.3s ease-in-out infinite; }
@keyframes nudge { 0%, 100% { transform: translateY(-2px); } 50% { transform: translateY(3px); } }
.pin-cue { transition: color .5s ease; }
/* the box is complete: the cue glows gently — there's more below */
.card.complete .pin-cue { color: var(--rust); animation: cue-glow 1.9s ease-in-out infinite; }
.card.complete .pin-cue svg { stroke: var(--sun); filter: drop-shadow(0 0 3px rgba(255,183,0,.9)); }
@keyframes cue-glow {
  0%, 100% { text-shadow: 0 0 0 rgba(255,183,0,0); }
  50% { text-shadow: 0 0 10px rgba(255,183,0,.95), 0 0 2px rgba(255,183,0,.7); }
}

/* whole-site progress, one segment per box of text / section */
.progress {
  position: fixed; z-index: 60;
  top: calc(env(safe-area-inset-top, 0px) + 6px); left: 12px; right: 12px;
  display: flex; gap: 3px; padding: 3px;
  background: rgba(27,20,18,.78);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  border-radius: 999px; pointer-events: none;
}
.progress span { flex: 1; height: 4px; border-radius: 2px; background: rgba(244,220,203,.22); overflow: hidden; }
.progress i { display: block; height: 100%; background: var(--sun); transform-origin: left center; transform: scaleX(0); }

.stage-card h3 {
  margin: 0 0 .5em;
  font-size: 17px; font-weight: 500; line-height: 1.3;
  display: flex; flex-wrap: wrap; align-items: center; gap: 0 .35em;
}
.stage-card h3 b { font-weight: 700; letter-spacing: .06em; }
.stage-card .bar { color: var(--ink-soft); font-weight: 300; }
.stage-card .dot {
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--c); box-shadow: 0 0 0 1.5px var(--ink);
  margin-right: .15em; flex: none;
}

.ppf-title { text-align: center; }
.ppf-title h2.brush { transform-origin: center; font-size: clamp(27px, 7.6vw, 50px); }
/* phones: THE KONGO COSMOGRAM on one line keeps that box short */
@media (max-width: 859px) { #journey h2.brush { font-size: clamp(20px, 6.6vw, 34px); white-space: nowrap; } }
.ppf-title .sub { font-style: italic; font-size: 17px; color: var(--ink-soft); }

/* cover credit, as printed at the foot of the cover */
.credit {
  position: absolute; left: 0; right: 0;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 58px);
  margin: 0; text-align: center;
  font: 700 12.5px/1.5 'Courier New', var(--f-type);
  letter-spacing: .02em; color: var(--ink);
  opacity: 0; animation: fadeUp 1s 2.1s ease forwards;
}
.credit span { font-weight: 400; font-family: var(--f-type); font-size: 11.5px; }
.cue {
  position: absolute; left: 50%; bottom: calc(env(safe-area-inset-bottom, 0px) + 16px);
  width: 24px; height: 36px; margin-left: -12px;
  border: 2px solid rgba(27,20,18,.55); border-radius: 14px;
  opacity: 0; animation: fadeUp 1s 2.5s ease forwards;
}
.cue span {
  position: absolute; left: 50%; top: 7px; width: 4px; height: 8px; margin-left: -2px;
  background: var(--ink); border-radius: 2px;
  animation: cue 1.8s 3s ease-in-out infinite;
}
@keyframes cue { 0% { transform: translateY(0); opacity: 1; } 70% { transform: translateY(12px); opacity: 0; } 100% { opacity: 0; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ───────── Past · Present · Future ───────── */
#ppf { background: var(--page); }
#ppf::before { opacity: .35; }
.page-end { text-align: center; padding-top: 10px; }
.cb-logo {
  width: 150px; height: auto; margin: 0 auto;
  filter: drop-shadow(0 8px 18px rgba(27,20,18,.25));
}
.ponto-end {
  margin: 0; font-family: var(--f-marker); color: var(--rust);
  font-size: clamp(30px, 9vw, 48px); line-height: 1; letter-spacing: .02em;
}
.ponto-end span { display: block; font-family: var(--f-brush); color: var(--ink); font-size: .62em; margin-top: .1em; }

/* ───────── back page ───────── */
.back {
  position: relative;
  /* fades in from the page colour Past · Present · Future ends on — no hard seam */
  background: linear-gradient(180deg, var(--page) 0, var(--paper) 60vh) no-repeat, var(--paper);
  padding: 72px 16px 56px;
  overflow-x: clip;   /* not hidden: the step-by-step inside needs sticky positioning */
}
.back::before { opacity: .6; }
.back > * { position: relative; }
.back-title {
  margin: 0 auto 28px; max-width: 900px; text-align: center;
  font-family: var(--f-display); font-weight: 800; line-height: 1.02;
  letter-spacing: .01em;
}
.back-title .l1 { display: block; font-size: clamp(13px, 4.2vw, 34px); color: var(--ink); white-space: nowrap; }
.back-title .l1 em { font-family: var(--f-brush); font-style: normal; font-weight: 400; font-size: 1.12em; display: inline-block; transform: rotate(-4deg); }
.back-title .l2 { display: block; font-size: clamp(19px, 6.3vw, 60px); color: #7C2A1C; margin-top: .05em; white-space: nowrap; }
html[data-lang="pt"] .back-title .l2 { font-size: clamp(14px, 4.55vw, 52px); }

.figs {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px 14px;
  max-width: 980px; margin: 0 auto 34px; align-items: center;
}
.fig { margin: 0; }
.fig-labeled, .fig-dikenga { grid-column: 1 / -1; }

/* the button that opens the labelled diagram one label at a time */
.deep-btn {
  display: flex; align-items: center; gap: 8px;
  margin: 14px auto 0; padding: 12px 18px 12px 22px;
  font: 600 15px/1 var(--f-body); letter-spacing: .02em;
  color: var(--paper-light); background: var(--ink);
  border: 0; border-radius: 999px; cursor: pointer;
  box-shadow: 0 6px 16px rgba(40,14,6,.28);
  transition: transform .2s ease, background .2s ease;
}
.deep-btn:hover { background: #2E211D; transform: translateY(-1px); }
.deep-btn:focus-visible { outline: 2px solid var(--sun); outline-offset: 3px; }
.deep-btn svg { width: 18px; height: 18px; fill: none; stroke: var(--sun); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; transition: transform .35s ease; }
.deep-btn[aria-expanded="true"] svg { transform: rotate(180deg); }
.deep-btn[aria-expanded="true"] .when-closed, .deep-btn[aria-expanded="false"] .when-open { display: none; }
/* full-bleed, so its sticky stage lines up with the viewport like the main story */
.anatomy {
  grid-column: 1 / -1; align-self: stretch;
  width: 100vw; margin-left: calc(50% - 50vw);
}
.step-close { min-height: 70vh; min-height: 70svh; padding: 0; }
.fig > svg { width: 100%; height: auto; display: block; overflow: visible; }
.fig-pendant { position: relative; transform-origin: 50% 4%; animation: swing 5.5s ease-in-out infinite alternate; }
.fig-pendant img { filter: drop-shadow(0 10px 14px rgba(40,14,6,.35)); }
.fig-pendant::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(105deg, transparent 35%, rgba(255,240,210,.55) 48%, transparent 60%) no-repeat;
  background-size: 250% 100%;
  -webkit-mask: url("assets/pendant.webp") center / contain no-repeat;
  mask: url("assets/pendant.webp") center / contain no-repeat;
  animation: shine 6s ease-in-out infinite;
  mix-blend-mode: screen;
}
@keyframes swing { from { transform: rotate(-3deg); } to { transform: rotate(3deg); } }
@keyframes shine { 0%, 45% { background-position: 120% 0; } 90%, 100% { background-position: -20% 0; } }
.fig-ground { border-radius: 16px; overflow: hidden; box-shadow: 0 10px 24px rgba(40,14,6,.3); aspect-ratio: 379 / 389; }
.fig-ground img { width: 100%; height: 100%; object-fit: cover; animation: drift 22s ease-in-out infinite alternate; }
@keyframes drift { from { transform: scale(1.02) translate(0, 0); } to { transform: scale(1.14) translate(-2%, 3%); } }

.typed {
  max-width: 760px; margin: 0 auto;
  font-family: var(--f-type); font-size: 16.5px; line-height: 1.75;
  text-align: center; color: #2A1712;
  text-wrap: pretty;
}
.typed .tw { opacity: .16; transition: opacity .5s ease; }
.typed .tw.on { opacity: 1; }
.pt4 { box-shadow: inset 0 -.38em 0 -.18em var(--c); padding: 0 .1em; }
.pt4.pale { box-shadow: inset 0 -.38em 0 -.18em var(--c), 0 1px 0 rgba(27,20,18,.35); }

.foot {
  background: var(--kala); color: var(--paper-light);
  text-align: center; padding: 26px 16px calc(env(safe-area-inset-bottom, 0px) + 26px);
  font-size: 14px; letter-spacing: .04em;
}
.foot a { color: var(--sun); text-decoration: none; }
.foot a:hover { text-decoration: underline; }

.reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s ease, transform .9s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* labeled diagram draws itself in when it arrives */
.fig .draw { stroke-dasharray: 1 1; stroke-dashoffset: 1; }
.fig.in .draw { animation: draw 1.6s cubic-bezier(.5,.1,.2,1) forwards; animation-delay: var(--d, 0s); }
@keyframes draw { to { stroke-dashoffset: 0; } }
.fig .lbl { opacity: 0; }
.fig.in .lbl { animation: fadeIn .8s ease forwards; animation-delay: var(--d, 1s); }
@keyframes fadeIn { to { opacity: 1; } }
.fig .march { stroke-dasharray: .02 .05; animation: march 2.4s linear infinite; }
@keyframes march { to { stroke-dashoffset: .07; } }

/* ───────── desktop: text column left, diagram right ───────── */
@media (min-width: 860px) {
  body { font-size: 18px; }
  .step { padding-left: max(28px, 6vw); padding-right: 0; }
  .step .card { margin: 0; max-width: min(460px, 38vw); }
  .step-end { place-items: start start; padding-left: max(28px, 6vw); }
  .page-end { width: min(460px, 38vw); }
  .figs { grid-template-columns: 1fr 1fr; gap: 28px 36px; }
  .fig-labeled, .fig-dikenga { grid-column: auto; }
  .fig-labeled { order: 1; } .fig-pendant { order: 2; } .anatomy { order: 3; } .fig-ground { order: 4; } .fig-dikenga { order: 5; }
  .fig-pendant { width: 72%; justify-self: center; }
  .fig-ground { width: 82%; justify-self: center; }
  .typed { font-size: 18px; }
}

@media (max-width: 400px) and (max-height: 740px) {
  body { font-size: 16px; }
  .card.page { padding: 16px 16px 15px; }
  .card.note { font-size: 17.5px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { transform: none; }
}