/* Processo Autoral — unified styles */

:root {
  --black: #000000;
  --white: #ffffff;
  --pink: #f0a6cf;
  --grid-line: #dddddd;

  --font-display: 'Stack Sans Headline', sans-serif;
  --font-body: 'Lilex', monospace;

  --rail-width: 4.75rem;
  --grid-cols: 4;
  --grid-gutter: 10px;
  --grid-margin: 20px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --signup-h: 3.25rem;
  --reveal-distance: 24px;
  --reveal-duration: 0.8s;
}

@media (min-width: 56rem) {
  :root {
    --grid-cols: 8;
    --grid-margin: 50px;
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  padding-top: var(--signup-h);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

a:focus-visible {
  outline: 2px solid var(--black);
  outline-offset: 3px;
}

ul {
  list-style: none;
}

/* ── Grid system ── */

.grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-cols), minmax(0, 1fr));
  column-gap: var(--grid-gutter);
  padding-inline: var(--grid-margin);
  width: 100%;
}

.col-full {
  grid-column: 1 / -1;
}

.col-span-4 {
  grid-column: span 4;
}

.col-span-6 {
  grid-column: span 4;
}

@media (min-width: 56rem) {
  .col-span-6 {
    grid-column: span 6;
  }

  .col-span-3--desktop {
    grid-column: span 3;
  }

  .col-span-5--desktop {
    grid-column: span 5;
  }
}

/* ── Grid guides (dev) ── */

.grid-guides {
  position: fixed;
  top: var(--signup-h);
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
  opacity: 0.4;
  mix-blend-mode: multiply;
}

@media (min-width: 56rem) {
  .grid-guides {
    left: var(--rail-width);
  }
}

.grid-guides__track {
  height: 100%;
}

.grid-guides__track > span {
  border-left: 1px solid var(--grid-line);
}

.grid-guides__track > span:last-child {
  border-right: 1px solid var(--grid-line);
}

.grid-guides__col--desktop {
  display: none;
}

@media (min-width: 56rem) {
  .grid-guides__col--desktop {
    display: block;
  }
}

/* ── Page shell ── */

.page {
  align-items: start;
}

@media (min-width: 56rem) {
  .page {
    padding-left: var(--rail-width);
  }
}

/* ── Sticky rail ── */

.rail {
  display: none;
}

@media (min-width: 56rem) {
  .rail {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    top: 0;
    left: 0;
    width: var(--rail-width);
    height: 100vh;
    padding-bottom: 1.75rem;
    border-right: 1px solid var(--black);
    background: var(--white);
    z-index: 55;
  }

  .rail__top {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    padding-top: 1.75rem;
  }

  .rail__logo img {
    width: 2.25rem;
    height: auto;
    transition: opacity 0.25s var(--ease);
  }

  .rail__logo:hover img {
    opacity: 0.45;
  }

  .rail__label {
    font-family: var(--font-display);
    font-weight: 200;
    font-size: 0.9375rem;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    color: var(--black);
    user-select: none;
    margin-top: 50px;
  }

  .rail__nav {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    font-size: 0.6875rem;
    letter-spacing: 0.08em;
  }

  .rail__nav a {
    position: relative;
    padding: 0.15rem 0;
    transition: opacity 0.25s var(--ease);
  }

  .rail__nav a::before {
    content: '';
    position: absolute;
    left: -0.65rem;
    top: 50%;
    width: 0;
    height: 1px;
    background: var(--black);
    transition: width 0.3s var(--ease);
    transform: translateY(-50%);
  }

  .rail__nav a:hover {
    opacity: 0.5;
  }

  .rail__nav a:hover::before {
    width: 0.35rem;
  }
}

/* ── Signup bar ── */

.signup-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background: var(--pink);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  padding-block: 0.875rem;
}

@media (min-width: 56rem) {
  .signup-bar {
    left: var(--rail-width);
  }
}

.signup-bar__grid {
  align-items: center;
}

.signup-bar__logo {
  display: flex;
  flex-shrink: 0;
  grid-column: 1 / 2;
}

.signup-bar__logo img {
  width: 2rem;
  height: auto;
}

@media (min-width: 56rem) {
  .signup-bar__logo {
    display: none;
  }
}

.signup-bar__inner {
  grid-column: 2 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem 1.25rem;
}

@media (min-width: 56rem) {
  .signup-bar__inner {
    grid-column: 1 / -1;
  }
}

.signup-bar__label {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.signup-bar__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.signup-bar__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.1rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--white);
  background: var(--black);
  border: 1px solid var(--black);
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}

.signup-bar__btn:hover {
  color: var(--black);
  background: var(--white);
}

.signup-bar__btn:focus-visible {
  outline: 2px solid var(--black);
  outline-offset: 2px;
}

/* ── Canvas ── */

.canvas {
  position: relative;
  min-width: 0;
}

.canvas > :not(.grid-guides) {
  position: relative;
}

.hero,
.panel {
  background: transparent;
}

.hero::before,
.panel::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero::before,
.panel--light::before {
  background: var(--white);
}

.panel--pink::before {
  background: var(--pink);
}

.hero > *,
.panel > * {
  position: relative;
  z-index: 2;
}

/* ── Hero ── */

.hero {
  padding-top: 300px;
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.hero__grid {
  row-gap: 0;
}

.hero__header {
  text-align: left;
}

.hero__index {
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  margin-bottom: 1.5rem;
  opacity: 0.45;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(3.25rem, 11vw, 7.5rem);
  line-height: 0.88;
  letter-spacing: -0.025em;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  color: var(--black);
  text-align: left;
}

.hero__title-line {
  display: block;
}

.hero__subtitle {
  font-size: clamp(0.8125rem, 1.8vw, 1rem);
  letter-spacing: 0.04em;
  max-width: 28rem;
  margin-bottom: 50px;
  text-align: left;
}

.hero__body {
  display: grid;
  grid-template-columns: repeat(var(--grid-cols), minmax(0, 1fr));
  column-gap: var(--grid-gutter);
}

.hero__body p {
  font-size: clamp(0.8125rem, 1.4vw, 0.9rem);
  font-weight: 400;
  margin-bottom: 1rem;
  grid-column: 1 / -1;
}

.hero__body p strong {
  font-weight: 700;
}

.hero__body p:last-child {
  margin-bottom: 0;
}

@media (min-width: 56rem) {
  .hero__body p:nth-child(1),
  .hero__body p:nth-child(2) {
    grid-column: 1 / 4;
  }

  .hero__body p:nth-child(3),
  .hero__body p:nth-child(4) {
    grid-column: 5 / 8;
  }
}

/* ── Panels ── */

.panel {
  padding-block: clamp(3.5rem, 9vw, 7rem);
}

#temas {
  padding-top: 200px;
  padding-bottom: clamp(3.5rem, 9vw, 7rem);
}

#temas .panel__head {
  margin-bottom: 50px;
}

#publico {
  padding-top: 200px;
  padding-bottom: clamp(3.5rem, 9vw, 7rem);
}

.panel__head {
  margin-bottom: 2.5rem;
}

.panel__head--split {
  display: block;
}

@media (min-width: 56rem) {
  .panel__head--split {
    display: grid;
    grid-template-columns: subgrid;
    grid-column: 1 / -1;
    align-items: end;
  }

  .panel__head--split .panel__index {
    grid-column: 1 / 3;
    margin-bottom: 0;
  }

  .panel__head--split .panel__title {
    grid-column: 3 / 9;
    text-align: right;
    justify-self: end;
  }
}

.panel__index {
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  opacity: 0.4;
  margin-bottom: 1rem;
}

.panel__title {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.25rem, 6vw, 4.25rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  max-width: 14ch;
  text-transform: uppercase;
}

.panel__title--wide {
  max-width: 16ch;
}

.panel__list--grid {
  display: grid;
  grid-template-columns: subgrid;
  grid-column: 1 / -1;
  align-items: start;
  row-gap: clamp(1.75rem, 4vw, 2.75rem);
}

@media (min-width: 56rem) {
  .panel__list--grid {
    grid-template-rows: repeat(4, auto);
    row-gap: clamp(2rem, 4.5vw, 3.25rem);
  }
}

.panel__list--grid li {
  position: relative;
  font-size: clamp(0.8125rem, 1.4vw, 0.875rem);
  grid-column: 1 / -1;
}

.panel__list--grid li::before {
  content: '';
  position: absolute;
  left: -15px;
  top: 0.45em;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 4px 0 4px 6px;
  border-color: transparent transparent transparent var(--black);
}

.panel__list--grid .topic__title {
  font-weight: 700;
}

.panel__list--grid .topic__description {
  font-weight: 400;
}

@media (min-width: 56rem) {
  .panel__list--grid li:nth-child(1) { grid-column: 1 / 4; grid-row: 1; }
  .panel__list--grid li:nth-child(2) { grid-column: 1 / 4; grid-row: 2; }
  .panel__list--grid li:nth-child(3) { grid-column: 1 / 4; grid-row: 3; }
  .panel__list--grid li:nth-child(4) { grid-column: 1 / 4; grid-row: 4; }
  .panel__list--grid li:nth-child(5) { grid-column: 5 / 8; grid-row: 1; }
  .panel__list--grid li:nth-child(6) { grid-column: 5 / 8; grid-row: 2; }
  .panel__list--grid li:nth-child(7) { grid-column: 5 / 8; grid-row: 3; }
  .panel__list--grid li:nth-child(8) { grid-column: 5 / 8; grid-row: 4; }
}

.panel__list--boxes {
  display: grid;
  grid-template-columns: subgrid;
  grid-column: 1 / -1;
  gap: var(--grid-gutter);
}

.panel__list--boxes li {
  grid-column: span 2;
  background: var(--pink);
  padding: 1.25rem 1rem;
  font-size: clamp(0.8125rem, 1.4vw, 0.875rem);
  font-weight: 400;
  line-height: 1.5;
}

.panel__list--stack {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.panel__list--stack li {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  font-size: clamp(0.8125rem, 1.4vw, 0.9rem);
  padding-bottom: 1.25rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
}

.panel__list--stack li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.panel__marker {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1px;
  background: var(--black);
  margin-top: 0.65em;
}

/* ── About ── */

.panel--about {
  padding-top: clamp(4rem, 10vw, 8rem);
}

.about__grid {
  align-items: start;
  row-gap: clamp(2.5rem, 6vw, 4rem);
}

@media (min-width: 56rem) {
  .about__grid {
    row-gap: 0;
  }

  .about__copy {
    grid-column: 5 / 9;
  }
}

.about__figure {
  margin: 0;
}

.about__frame {
  position: relative;
}

.about__frame::before {
  content: '';
  position: absolute;
  inset: 1rem 1rem -1rem -1rem;
  border: 1px solid var(--white);
  z-index: -1;
}

.about__frame img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: grayscale(100%);
}

.about__copy .panel__index {
  margin-bottom: 0.75rem;
}

.about__copy .panel__title {
  margin-bottom: 1.75rem;
}

.about__body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.about__body p {
  font-size: clamp(0.8125rem, 1.4vw, 0.875rem);
  font-weight: 400;
}

.about__link {
  display: inline-block;
  margin-top: 0.5rem;
  padding-bottom: 0.15rem;
  border-bottom: 1px solid var(--black);
  transition: opacity 0.25s var(--ease);
}

.about__link:hover {
  opacity: 0.5;
}

/* ── Footer ── */

.footer {
  background: var(--black);
  color: var(--white);
  padding-block: 3rem 3.5rem;
}

@media (min-width: 56rem) {
  .footer {
    padding-left: var(--rail-width);
  }
}

.footer__logo {
  display: flex;
  justify-content: center;
}

.footer__logo img {
  width: min(100%, 18rem);
  height: auto;
  filter: invert(1);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}

/* ── Motion & interactions (v3) ── */

/* ── Reveal base ── */

.js-motion [data-reveal]:not(.is-visible),
.js-motion [data-reveal-load]:not(.is-visible) {
  opacity: 0;
  transform: translateY(var(--reveal-distance));
  transition:
    opacity var(--reveal-duration) var(--ease),
    transform var(--reveal-duration) var(--ease);
  will-change: opacity, transform;
}

.js-motion [data-reveal-load="down"]:not(.is-visible) {
  transform: translateY(-8px);
}

.js-motion [data-reveal-load="left"]:not(.is-visible) {
  transform: translateX(-12px);
}

.js-motion [data-reveal].is-visible,
.js-motion [data-reveal-load].is-visible {
  opacity: 1;
  transform: none;
}

/* ── Load sequence chrome ── */

.js-motion .signup-bar[data-reveal-load] {
  transition-duration: 0.65s;
}

.js-motion .rail[data-reveal-load] {
  transition-duration: 0.75s;
}

/* ── Pass B: anchor offset ── */

#intro,
#temas,
#publico,
#sobre {
  scroll-margin-top: var(--signup-h);
}

/* ── Pass B: rail scroll spy ── */

@media (min-width: 56rem) {
  .rail {
    overflow: visible;
  }

  .rail__nav a {
    opacity: 0.35;
  }

  .rail__nav a.is-active {
    opacity: 1;
  }

  .rail__nav a.is-active::before {
    width: 0.35rem;
  }

  .rail__nav a:hover,
  .rail__nav a:focus-visible {
    opacity: 1;
  }

  .rail__nav a:hover::before,
  .rail__nav a:focus-visible::before {
    width: 0;
  }

  .rail__nav a.is-active:hover::before,
  .rail__nav a.is-active:focus-visible::before {
    width: 0;
  }

  .rail__nav-tip {
    --tip-point: 10px;
    position: absolute;
    left: calc(100% + 10px);
    top: 50%;
    z-index: 70;
    padding: 0.5rem 0.75rem 0.5rem calc(0.65rem + var(--tip-point));
    background: var(--black);
    color: var(--white);
    font-family: var(--font-display);
    font-weight: 200;
    font-size: 0.625rem;
    line-height: 1.2;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    white-space: nowrap;
    clip-path: polygon(
      0 50%,
      var(--tip-point) 0,
      100% 0,
      100% 100%,
      var(--tip-point) 100%
    );
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-50%) translateX(-6px);
    transition:
      opacity 0.25s var(--ease),
      transform 0.25s var(--ease),
      visibility 0.25s var(--ease);
  }

  .rail__nav a:hover .rail__nav-tip,
  .rail__nav a:focus-visible .rail__nav-tip {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  @media (min-width: 56rem) {
    .rail__nav-tip {
      transition: none;
      transform: translateY(-50%);
    }

    .rail__nav a:hover .rail__nav-tip,
    .rail__nav a:focus-visible .rail__nav-tip {
      transform: translateY(-50%);
    }
  }
}

/* ── Pass B: signup bar polish ── */

.signup-bar {
  transition:
    padding 0.3s var(--ease),
    border-color 0.3s var(--ease);
}

.signup-bar.is-scrolled {
  padding-block: 0.625rem;
}

.signup-bar__btn {
  transition:
    background 0.2s var(--ease),
    color 0.2s var(--ease),
    transform 0.2s var(--ease);
}

.signup-bar__btn:hover {
  transform: translateY(-1px);
}

.signup-bar__btn:focus-visible {
  transform: translateY(-1px);
}

/* ── Pass C: portrait (section 04) ── */

.about__frame {
  --shadow-x: 0rem;
  --shadow-y: 0rem;
  position: relative;
}

.about__frame::before {
  content: '';
  position: absolute;
  inset: 1rem 1rem -1rem -1rem;
  border: 1px solid var(--white);
  z-index: 0;
  pointer-events: none;
  translate: var(--shadow-x) var(--shadow-y);
  scale: 0.94;
  transform-origin: 100% 0%;
  opacity: 0;
  transition:
    opacity 1s var(--ease),
    scale 1.2s var(--ease);
}

.about__figure.is-visible .about__frame::before {
  scale: 1;
  opacity: 1;
}

.about__frame img {
  filter: none;
}

.about__frame__photo {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  position: relative;
  z-index: 1;
}

.about__frame__photo--base {
  filter: grayscale(100%);
}

.about__frame__photo--color {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0;
  filter: none;
  transition: opacity 0.8s var(--ease);
}

.about__frame:is(:hover, :focus-within, .is-hovered) .about__frame__photo--color {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .signup-bar,
  .signup-bar__btn {
    transition: none;
  }

  .signup-bar__btn:hover,
  .signup-bar__btn:focus-visible {
    transform: none;
  }

  .js-motion [data-reveal]:not(.is-visible),
  .js-motion [data-reveal-load]:not(.is-visible) {
    opacity: 1;
    transform: none;
    transition: none;
    will-change: auto;
  }

  .about__frame::before {
    opacity: 1;
    scale: 1;
    translate: 0 0;
    transition: none;
  }

  .about__frame__photo--color {
    opacity: 1;
    transition: none;
  }
}