/* ==========================================================================
   Rogerio A. M. Santos — portfolio
   Tokens mirror the Figma collection "Foundations v2" (mode v3).
   ========================================================================== */

:root {
  /* Color */
  --color-bg: #ffffff;
  --color-placeholder: #ededed;
  --color-placeholder-alt: #dfdfdf;
  --color-overlay: rgba(0, 0, 0, 0.55);
  --color-text: #000000;
  --color-nav-active: #222222;
  --color-text-muted: #8a8a8a;
  --color-text-subtle: #a8a8a8;
  --color-text-on-image: #ffffff;
  --color-text-on-image-muted: #bdbdbd;
  --color-accent: #632940;
  --color-accent-tint: rgba(99, 41, 64, 0.21);
  --color-accent-soft: #efe5e9;
  --color-divider: #eaeaea;
  --color-rule: #bbbbbb;

  /* Spacing */
  --page-x: 60px;
  --header-top: 35px;
  --space-section: 64px;
  --tile-pad: 32px;
  --nav-gap: 24px;

  /* Type */
  --font: "Figtree", "Proxima Nova", system-ui, -apple-system, "Segoe UI", sans-serif;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font: 500 14px/21px var(--font);
  -webkit-font-smoothing: antialiased;
  transition: opacity 0.2s ease;
}

body.is-leaving { opacity: 0; }

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

a { color: inherit; }

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- Text styles (match Figma v2/…) ---------- */

.t-label {
  font-size: 12.5px;
  line-height: 18px;
  font-weight: 600;
  letter-spacing: 3.1px;
  text-transform: uppercase;
  color: var(--color-text);
  margin: 0;
}

.t-label .accent,
.accent { color: var(--color-accent); }

.t-display {
  font-size: 80px;
  line-height: 82px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--color-accent-tint);
  margin: 0;
}

.t-lead {
  font-size: 26px;
  line-height: 33px;
  letter-spacing: 0.15px;
  font-weight: 500;
  margin: 0;
}

.t-timeline {
  font-size: 20px;
  line-height: 27px;
  letter-spacing: 0.15px;
  font-weight: 500;
  margin: 0;
}

.t-body { color: var(--color-text-muted); margin: 0; }
.t-body strong { font-weight: 700; }

/* ---------- Header ---------- */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--header-top) var(--page-x) 0;
}

.logo {
  display: block;
  width: 44px;
  color: var(--color-accent);
  transition: transform 0.4s var(--ease);
}

.logo:hover { transform: rotate(-6deg) scale(1.04); }

.logo svg { display: block; width: 100%; height: auto; }

.nav {
  display: flex;
  gap: var(--nav-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav a {
  font-size: 13px;
  line-height: 21px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

.nav a:hover { color: var(--color-accent); }
.nav a[aria-current="page"] { color: var(--color-nav-active); }

/* ---------- Intro ---------- */

.intro {
  max-width: 774px;
  margin: var(--space-section) auto;
  padding: 0 var(--page-x);
  text-align: center;
  box-sizing: content-box;
}

.intro p {
  font-size: 26px;
  line-height: 30px;
  margin: 0;
  text-wrap: balance;
}

.intro .kicker {
  font-size: 19.5px;
  line-height: 33px;
  font-style: italic;
  margin-bottom: 8px;
}

/* ---------- Project grid + tiles ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0 var(--page-x);
  padding: 0;
  list-style: none;
}

.tile {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  aspect-ratio: 1 / 1;
  padding: var(--tile-pad);
  overflow: hidden;
  text-decoration: none;
  color: var(--color-text-on-image);
  background: var(--tile-bg, var(--color-placeholder));
  isolation: isolate;
}

.grid > li:nth-child(even) .tile { --tile-bg: var(--color-placeholder-alt); }

.tile-art {
  position: absolute;
  inset: 0;
  z-index: -2;
  display: grid;
  place-items: center;
  transition: transform 0.8s var(--ease);
}

.tile-art img { width: 100%; height: 100%; object-fit: cover; }

.tile-art .tile-mark {
  font-size: clamp(64px, 9vw, 140px);
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent-tint);
}

.tile::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--color-overlay);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}

.tile-title {
  font-size: 29px;
  line-height: 33px;
  letter-spacing: 1px;
  font-weight: 500;
  margin: 0 0 8px;
}

.tile-cat {
  font-size: 12px;
  line-height: 17px;
  font-weight: 600;
  letter-spacing: 2.74px;
  text-transform: uppercase;
  color: var(--color-text-on-image-muted);
  margin: 0;
}

.tile-title,
.tile-cat {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease);
}

.tile-cat { transition-delay: 0.04s; }

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

a.tile:hover .tile-art { transform: scale(1.03); }

a.tile:hover .tile-title,
a.tile:hover .tile-cat,
a.tile:focus-visible .tile-title,
a.tile:focus-visible .tile-cat {
  opacity: 1;
  transform: none;
}

.tile--accent { --tile-bg: var(--color-accent-soft); }
.grid > li:nth-child(even) .tile--accent { --tile-bg: var(--color-accent-soft); }

.tile--soon { cursor: default; }
.tile--soon .tile-title,
.tile--soon .tile-cat {
  opacity: 1;
  transform: none;
  color: var(--color-text-muted);
}

/* Touch screens have no hover: always show titles */
@media (hover: none) {
  a.tile::after { opacity: 1; }
  a.tile .tile-title,
  a.tile .tile-cat { opacity: 1; transform: none; }
}

/* ---------- Footer ---------- */

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  flex-wrap: wrap;
  margin-top: var(--space-section);
  padding: 20px var(--page-x);
  border-top: 1px solid var(--color-divider);
  color: var(--color-text-subtle);
}

.site-footer p { margin: 0; }

.footer-links {
  display: flex;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links a:hover { color: var(--color-accent); }

/* ---------- Content containers ---------- */

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 var(--page-x);
  box-sizing: content-box;
}

.container--case { max-width: 1096px; }

.rule {
  border: 0;
  border-top: 1px solid var(--color-rule);
  margin: 0;
}

.rule--heavy { border-top: 3px solid var(--color-text); }

/* ---------- Info page ---------- */

.info {
  display: grid;
  gap: var(--space-section);
  margin-top: var(--space-section);
}

.info-top {
  display: grid;
  grid-template-columns: 463px 463px;
  column-gap: 117px;
  align-items: start;
}

.info-about { display: grid; gap: 24px; }

.photo {
  aspect-ratio: 463 / 357;
  border-radius: 16px;
  background: var(--color-placeholder);
  overflow: hidden;
  display: grid;
  place-items: center;
  color: var(--color-text-subtle);
}

.photo img { width: 100%; height: 100%; object-fit: cover; }

.timeline { display: grid; gap: 28px; }
.timeline .entry { display: grid; gap: 12px; }

.info-details,
.info-contact {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px 0;
  align-items: start;
}

.info-details > div,
.info-contact > div { display: grid; gap: 16px; padding-right: 24px; }

.info-details p { margin: 0; }
.info-details .item + .item { margin-top: 16px; }

.info-contact .contact { grid-column: span 2; }

.button {
  justify-self: start;
  display: inline-block;
  padding: 14px 22px;
  background: var(--color-text);
  color: var(--color-text-on-image);
  font-size: 12px;
  line-height: 16px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.2s ease;
}

.button:hover { background: var(--color-accent); }

/* ---------- Case study ---------- */

.case {
  display: grid;
  gap: 72px;
  margin-top: var(--space-section);
}

.case-hero { display: grid; gap: 16px; }
.case-summary { display: grid; gap: 12px; max-width: 427px; padding-top: 8px; }

.media {
  background: var(--color-placeholder);
  width: 100%;
  display: grid;
  place-items: center;
  color: var(--color-text-subtle);
  font-size: 12.5px;
  letter-spacing: 3.1px;
  text-transform: uppercase;
  font-weight: 600;
}

.media--alt { background: var(--color-placeholder-alt); }
.media img { width: 100%; height: auto; }

.ratio-hero { aspect-ratio: 1096 / 522; }
.ratio-wide { aspect-ratio: 1096 / 462; }
.ratio-tall { aspect-ratio: 1096 / 640; }
.ratio-inset { aspect-ratio: 873 / 568; }

.case-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px 0;
}

.case-facts > div { display: grid; gap: 12px; padding-right: 24px; align-content: start; }

.case-challenge {
  display: grid;
  gap: 20px;
  justify-items: center;
  text-align: center;
  padding: 24px 0;
}

.case-challenge .t-lead { color: var(--color-accent); max-width: 873px; text-wrap: balance; }

.case-section { display: grid; gap: 16px; }
.case-section .t-timeline { max-width: 640px; }
.case-section .media { margin-top: 16px; }

.inset { width: calc(873 / 1096 * 100%); justify-self: end; }

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 16px;
}

.metrics .value {
  font-size: 80px;
  line-height: 82px;
  font-weight: 700;
  margin: 0;
}

.case-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.case-nav a { text-decoration: none; }
.case-nav a:hover { color: var(--color-accent); }

/* ---------- Scroll reveal (only when JS runs) ---------- */

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  body { transition: none; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .tile-art, .tile::after, .tile-title, .tile-cat, .logo { transition: none; }
}

/* ---------- Responsive ---------- */

@media (max-width: 1180px) {
  .info-top { grid-template-columns: 1fr 1fr; column-gap: 64px; }
}

@media (max-width: 1024px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .info-details,
  .info-contact,
  .case-facts { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  :root {
    --page-x: 20px;
    --header-top: 20px;
    --space-section: 48px;
    --tile-pad: 20px;
  }

  .logo { width: 34px; }
  .intro p { font-size: 20px; line-height: 25px; }

  .grid { grid-template-columns: 1fr; }
  .tile-title { font-size: 24px; line-height: 28px; letter-spacing: 0.5px; }

  .t-display,
  .metrics .value { font-size: 48px; line-height: 50px; }
  .t-lead { font-size: 20px; line-height: 26px; }
  .t-timeline { font-size: 17px; line-height: 24px; }

  .info-top { grid-template-columns: 1fr; row-gap: 48px; }
  .info-details,
  .info-contact,
  .case-facts,
  .metrics { grid-template-columns: 1fr; }
  .info-contact .contact { grid-column: auto; }

  .case { gap: 48px; }
  .inset { width: 100%; }

  .site-footer { flex-direction: column; align-items: flex-start; }
}