/* ==========================================================================
   INMEA — Instituto Norte-Mineiro de Estudos Avançados
   Tema: quadro-negro e papel milimetrado. Verde-ardósia escuro, giz e ouro.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,500&family=Public+Sans:wght@400;500;600;700&display=swap');

:root {
  --board:      #1B2921;
  --board-alt:  #223428;
  --board-deep: #14201A;
  --chalk:      #F6F2E7;
  --chalk-dim:  #A9B8AC;
  --brass:      #D9AD5D;
  --brass-bright: #EAC57E;
  --brass-dim:  #8F7644;
  --rule:       #37493C;
  --rule-soft:  rgba(246,242,231,0.08);

  --serif: 'Newsreader', 'Iowan Old Style', Georgia, serif;
  --sans: 'Public Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --maxw: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(ellipse at top left, rgba(217,173,93,0.05), transparent 45%),
    var(--board);
  color: var(--chalk);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* fine graph-paper grid, used behind hero/sections that want it */
.grid-bg {
  background-image:
    linear-gradient(var(--rule-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule-soft) 1px, transparent 1px);
  background-size: 34px 34px;
  background-position: -1px -1px;
}

a { color: var(--brass); text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

/* chalk-underline link style for inline prose links */
.ink-link {
  color: var(--chalk);
  background-image: linear-gradient(var(--brass), var(--brass));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1.5px;
  transition: background-size 0.25s ease, color 0.15s ease;
  padding-bottom: 1px;
}
.ink-link:hover {
  color: var(--brass-bright);
  background-size: 100% 1.5px;
  text-decoration: none;
}

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

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 500;
  color: var(--chalk);
  margin: 0 0 0.4em;
  letter-spacing: 0.1px;
}

p { max-width: 60ch; }
p.wide { max-width: 68ch; }

/* ---------- header ---------- */

.site-header {
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(27,41,33,0.9);
  backdrop-filter: blur(8px);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
  gap: 20px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--chalk);
}

.brand .mark {
  width: auto;
  height: 34px;
  flex: none;
}

.brand .brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand .brand-text strong {
  font-family: var(--serif);
  font-size: 1.28rem;
  font-weight: 500;
  letter-spacing: 0.3px;
}

.brand .brand-text small {
  font-family: var(--sans);
  font-size: 0.66rem;
  color: var(--chalk-dim);
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

nav.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 0.95rem;
}

nav.main-nav a {
  color: var(--chalk-dim);
  position: relative;
  padding-bottom: 4px;
}
nav.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--brass);
  transition: right 0.2s ease;
}
nav.main-nav a:hover,
nav.main-nav a[aria-current="page"] {
  color: var(--brass-bright);
}
nav.main-nav a:hover::after,
nav.main-nav a[aria-current="page"]::after {
  right: 0;
}

.phone-badge {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--chalk-dim);
  white-space: nowrap;
}

/* ---------- hero ---------- */

.hero {
  padding: 84px 0 68px;
  position: relative;
  overflow: hidden;
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
  position: relative;
}

.hero .eyebrow,
.eyebrow {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 1px;
  background: var(--brass);
}

.hero h1 {
  font-size: clamp(2.6rem, 5vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: -0.5px;
}

.hero .tagline {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 500;
  font-size: 1.35rem;
  color: var(--chalk-dim);
  margin-top: 18px;
  max-width: 46ch;
}

.hero .actions {
  margin-top: 34px;
  display: flex;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 26px;
  background: var(--brass);
  color: var(--board-deep);
  border-radius: 1px;
  transition: background 0.15s ease, transform 0.15s ease;
}
.btn:hover {
  background: var(--brass-bright);
  text-decoration: none;
  transform: translateY(-1px);
}

.hero-figure { position: relative; }
.ms3d-canvas {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 4px;
  overflow: hidden;
  background: radial-gradient(circle at 50% 42%, rgba(217,173,93,0.09), transparent 65%);
}
.ms3d-canvas canvas { display: block; width: 100% !important; height: 100% !important; }

/* ---------- sections ---------- */

section { padding: 64px 0; }
.section-alt { background: var(--board-alt); }

.section-head {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 18px;
  margin-bottom: 40px;
}

.section-head .eyebrow { margin-bottom: 10px; }

.section-head-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.15rem); }
.section-head .section-note a { color: var(--chalk-dim); }
.section-head .section-note a:hover { color: var(--brass); }
.section-head .section-note { font-size: 0.9rem; }

/* areas / tags row */

.area-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}
.area-tags span {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--chalk);
  border: 1px solid var(--rule);
  padding: 7px 16px;
  border-radius: 999px;
}

/* differentials — definition-list style, not icon cards */

.diffs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--rule);
}

.diffs dt {
  font-family: var(--serif);
  font-size: 1.15rem;
  color: var(--chalk);
  padding: 26px 28px 26px 0;
  border-bottom: 1px solid var(--rule);
}

.diffs dd {
  margin: 0;
  padding: 26px 0 26px 28px;
  border-bottom: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
  color: var(--chalk-dim);
  font-size: 0.97rem;
}

/* team — CV style, hexagonal marks */

.team-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.team-member { padding-top: 4px; }
.team-member-link { display: block; color: inherit; }
.team-member-link:hover { text-decoration: none; }
.team-member-link:hover h3 { color: var(--brass-bright); }

.team-member .avatar {
  width: 100%;
  aspect-ratio: 0.92;
  clip-path: polygon(50% 0%, 93% 25%, 93% 75%, 50% 100%, 7% 75%, 7% 25%);
  margin-bottom: 18px;
  background: linear-gradient(160deg, var(--board-deep), var(--board-alt));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 1.7rem;
  color: var(--brass);
  position: relative;
}
.team-member .avatar::before {
  content: "";
  position: absolute;
  inset: 2px;
  clip-path: polygon(50% 0%, 93% 25%, 93% 75%, 50% 100%, 7% 75%, 7% 25%);
  border: 1px solid var(--rule);
}

.team-member .avatar img,
.bio-header .avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.team-member h3 { font-size: 1.05rem; margin-bottom: 4px; }
.team-member .role { color: var(--brass); font-size: 0.85rem; display: block; margin-bottom: 2px; }
.team-member .inst { color: var(--chalk-dim); font-size: 0.85rem; }

/* courses list */

.course-list { border-top: 1px solid var(--rule); }

.course-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid var(--rule);
  transition: padding-left 0.18s ease;
}
.course-row:hover { padding-left: 8px; }

.course-row .course-title { font-family: var(--serif); font-size: 1.35rem; color: var(--chalk); }
.course-row .course-title a { color: inherit; }
.course-row .course-title a:hover { color: var(--brass-bright); }

.course-row .course-desc { color: var(--chalk-dim); font-size: 0.93rem; margin-top: 8px; max-width: 56ch; }
.course-row .course-go { font-size: 0.9rem; white-space: nowrap; color: var(--chalk-dim); }
.course-row:hover .course-go a { color: var(--brass-bright); }

.tag-soon {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--board-deep);
  background: var(--chalk-dim);
  padding: 3px 9px;
  border-radius: 999px;
  margin-left: 12px;
  vertical-align: middle;
}

/* contact */

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }

.contact-info dl { margin: 24px 0 0; }
.contact-info dt { color: var(--chalk-dim); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.4px; margin-top: 20px; }
.contact-info dd { margin: 4px 0 0; font-family: var(--serif); font-size: 1.2rem; }
.contact-info dd a { color: var(--chalk); }
.contact-info dd a:hover { color: var(--brass); }

form.contact-form { display: grid; gap: 18px; }

form.contact-form label {
  display: block;
  font-size: 0.8rem;
  color: var(--chalk-dim);
  margin-bottom: 7px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

form.contact-form input,
form.contact-form textarea {
  width: 100%;
  background: var(--board-deep);
  border: 1px solid var(--rule);
  color: var(--chalk);
  font-family: var(--sans);
  font-size: 0.95rem;
  padding: 12px 14px;
  border-radius: 1px;
}

form.contact-form input:focus,
form.contact-form textarea:focus { outline: none; border-color: var(--brass); }

form.contact-form button {
  justify-self: start;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 28px;
  background: var(--brass);
  color: var(--board-deep);
  border: none;
  border-radius: 1px;
  cursor: pointer;
  transition: background 0.15s ease;
}
form.contact-form button:hover { background: var(--brass-bright); }

/* course detail page */

.course-hero { padding: 56px 0 26px; border-bottom: 1px solid var(--rule); }

.breadcrumbs { font-size: 0.85rem; color: var(--chalk-dim); padding: 26px 0 0; }
.breadcrumbs a { color: var(--chalk-dim); }
.breadcrumbs a:hover { color: var(--brass); }

.material-list { display: grid; gap: 32px; margin-top: 24px; }

.material-item { border: 1px solid var(--rule); background: var(--board-alt); padding: 20px; }
.material-item .material-label { font-family: var(--serif); font-style: italic; font-size: 0.95rem; color: var(--brass); margin-bottom: 12px; }

.material-item .frame-wrap { position: relative; width: 100%; padding-top: 56.25%; background: var(--board-deep); }
.material-item iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

.coming-soon {
  border: 1px dashed var(--rule);
  padding: 48px 28px;
  text-align: center;
  color: var(--chalk-dim);
  margin-top: 24px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.05rem;
}

/* footer */

.site-footer { border-top: 1px solid var(--rule); padding: 40px 0 34px; position: relative; }
.site-footer .wrap { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 16px; }
.site-footer .foot-brand { font-family: var(--serif); font-size: 1rem; color: var(--chalk-dim); }
.site-footer .foot-brand strong { color: var(--chalk); }
.site-footer .foot-links { display: flex; gap: 22px; font-size: 0.85rem; }
.site-footer a { color: var(--chalk-dim); }
.site-footer a:hover { color: var(--brass); }

/* ---------- responsive ---------- */

@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-figure { order: -1; max-width: 320px; margin: 0 auto; }
  .diffs { grid-template-columns: 1fr; }
  .diffs dt { border-left: none; padding-left: 0; }
  .diffs dd { border-left: none; padding-left: 0; }
  .team-list { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}

/* academic bio pages (equipe/*) */
.bio-header {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  align-items: start;
}
.bio-header .avatar {
  width: 100%;
  aspect-ratio: 0.92;
  clip-path: polygon(50% 0%, 93% 25%, 93% 75%, 50% 100%, 7% 75%, 7% 25%);
  background: linear-gradient(160deg, var(--board-deep), var(--board-alt));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 2.6rem;
  color: var(--brass);
  position: relative;
}
.bio-header .avatar::before {
  content: "";
  position: absolute;
  inset: 2px;
  clip-path: polygon(50% 0%, 93% 25%, 93% 75%, 50% 100%, 7% 75%, 7% 25%);
  border: 1px solid var(--rule);
}
.bio-facts {
  margin-top: 22px;
}
.bio-facts dt {
  color: var(--chalk-dim);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-top: 14px;
}
.bio-facts dd {
  margin: 3px 0 0;
  font-family: var(--serif);
  font-size: 1.05rem;
}
@media (max-width: 640px) {
  .bio-header { grid-template-columns: 120px 1fr; gap: 24px; }
  .bio-header .avatar { font-size: 1.6rem; }
}

@media (max-width: 560px) {
  .team-list { grid-template-columns: 1fr 1fr; }
  nav.main-nav { gap: 18px; font-size: 0.88rem; }
  .course-row { flex-direction: column; }
  .site-header .wrap { padding-top: 14px; padding-bottom: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .course-row, .btn, nav.main-nav a::after { transition: none; }
}