/* ============================================================
   JACINTO AZEVEDO · SITE PESSOAL
   Design system: académico-editorial, premium, trilingue
   ============================================================ */

:root {
  /* Cores */
  --c-bg:           #F5F1EA;   /* off-white quente */
  --c-bg-soft:      #ECE6DB;
  --c-paper:        #FFFFFF;
  --c-ink:          #0F1419;   /* charcoal */
  --c-ink-soft:     #3A3F44;
  --c-ink-mute:     #6B6E73;
  --c-line:         #C8C0B1;
  --c-line-soft:    #DDD7CA;
  --c-accent:       #B8956A;   /* bronze */
  --c-accent-2:     #0E5B6E;   /* teal médico */
  --c-accent-3:     #8B3A2E;   /* vinho sutil (badges críticos) */

  /* Tipografia */
  --f-serif: "Fraunces", "Cormorant Garamond", "EB Garamond", Georgia, "Times New Roman", serif;
  --f-sans:  "Inter", "Söhne", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-mono:  "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

  /* Escala tipográfica (clamp responsivo) */
  --t-display: clamp(2.25rem, 3.8vw + 0.5rem, 4.25rem);
  --t-h1:      clamp(2rem, 3.5vw + 0.5rem, 3.5rem);
  --t-h2:      clamp(1.5rem, 2vw + 0.5rem, 2.25rem);
  --t-h3:      clamp(1.125rem, 1.2vw + 0.5rem, 1.5rem);
  --t-lead:    clamp(1.0625rem, 0.5vw + 0.875rem, 1.25rem);
  --t-body:    1rem;
  --t-small:   0.875rem;
  --t-micro:   0.75rem;

  /* Espaçamento (8px scale) */
  --s-1: 0.25rem; --s-2: 0.5rem; --s-3: 0.75rem; --s-4: 1rem;
  --s-5: 1.25rem; --s-6: 1.5rem; --s-7: 2rem; --s-8: 2.5rem;
  --s-9: 3rem; --s-10: 4rem; --s-11: 5rem; --s-12: 6rem; --s-13: 8rem;

  /* Layout */
  --max: 1280px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 2px;
  --radius-lg: 6px;

  /* Movimento */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--f-sans);
  font-size: var(--t-body);
  line-height: 1.6;
  font-feature-settings: "ss01", "cv11", "kern";
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
a:hover { color: var(--c-accent); }

em { font-style: italic; }
strong { font-weight: 600; }

::selection {
  background: var(--c-accent);
  color: var(--c-bg);
}

/* ============================================================
   TIPOGRAFIA EDITORIAL
   ============================================================ */

h1, h2, h3, h4 {
  font-family: var(--f-serif);
  font-weight: 400;
  color: var(--c-ink);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.kicker {
  font-family: var(--f-sans);
  font-size: var(--t-micro);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--c-accent-2);
  font-weight: 500;
}

.lede {
  font-family: var(--f-serif);
  font-style: italic;
  font-size: var(--t-lead);
  line-height: 1.5;
  color: var(--c-ink-soft);
  max-width: 56ch;
}

.serif-num {
  font-family: var(--f-serif);
  font-weight: 300;
  font-feature-settings: "lnum";
  letter-spacing: -0.04em;
}

/* ============================================================
   LAYOUT
   ============================================================ */

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section {
  padding-top: clamp(4rem, 10vw, 9rem);
  padding-bottom: clamp(4rem, 10vw, 9rem);
}

.divider {
  border: none;
  border-top: 1px solid var(--c-line);
  margin: 0;
}

/* ============================================================
   NAV
   ============================================================ */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(245, 241, 234, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.nav.is-stuck { border-bottom-color: var(--c-line-soft); }

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
  padding: var(--s-4) 0;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--f-serif);
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}
.nav__brand-mark {
  display: inline-grid;
  place-items: center;
  width: 32px; height: 32px;
  background: var(--c-ink);
  color: var(--c-bg);
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 1.05rem;
  border-radius: 50%;
  letter-spacing: -0.05em;
}
.nav__brand-sub {
  font-family: var(--f-sans);
  font-size: var(--t-micro);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--c-ink-mute);
  margin-left: var(--s-2);
}

.nav__links {
  display: flex;
  gap: clamp(0.875rem, 1.5vw, 1.75rem);
  list-style: none;
}
.nav__links a {
  font-size: var(--t-small);
  font-weight: 450;
  color: var(--c-ink-soft);
  position: relative;
  padding: var(--s-2) 0;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--c-accent);
  transition: width 0.3s var(--ease);
}
.nav__links a:hover { color: var(--c-ink); }
.nav__links a:hover::after { width: 100%; }
.nav__links a.is-active { color: var(--c-ink); }
.nav__links a.is-active::after { width: 100%; background: var(--c-ink); }

.nav__right {
  display: flex;
  align-items: center;
  gap: var(--s-4);
}

.lang {
  display: inline-flex;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  padding: 2px;
  background: var(--c-paper);
}
.lang button {
  background: transparent;
  border: none;
  font-family: var(--f-sans);
  font-size: var(--t-micro);
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--c-ink-mute);
  transition: all 0.2s var(--ease);
}
.lang button:hover { color: var(--c-ink); }
.lang button.is-on {
  background: var(--c-ink);
  color: var(--c-bg);
}

.nav__burger {
  display: none;
  background: transparent;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 6px 8px;
  cursor: pointer;
}
.nav__burger span {
  display: block;
  width: 18px; height: 1.5px;
  background: var(--c-ink);
  margin: 4px 0;
  transition: transform 0.2s var(--ease);
}

@media (max-width: 920px) {
  .nav__links {
    position: fixed;
    inset: 64px 0 auto 0;
    flex-direction: column;
    background: var(--c-bg);
    padding: var(--s-6) var(--gutter);
    gap: var(--s-5);
    border-bottom: 1px solid var(--c-line-soft);
    transform: translateY(-110%);
    transition: transform 0.3s var(--ease);
  }
  .nav__links.is-open { transform: translateY(0); }
  .nav__links a { font-size: 1rem; }
  .nav__burger { display: block; }
  .nav.is-open .nav__burger span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
  .nav.is-open .nav__burger span:nth-child(2) { transform: translateY(-5.5px) rotate(-45deg); }
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  align-items: end;
  padding-top: 8rem;
  padding-bottom: clamp(3rem, 6vw, 6rem);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(184, 149, 106, 0.18), transparent 55%),
    radial-gradient(ellipse at 10% 90%, rgba(14, 91, 110, 0.12), transparent 55%),
    linear-gradient(180deg, var(--c-bg) 0%, var(--c-bg-soft) 100%);
}

.hero__bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--c-line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--c-line-soft) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.25;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-9);
}

.hero__kicker {
  margin-bottom: var(--s-6);
}

.hero__headline {
  font-size: var(--t-display);
  font-family: var(--f-serif);
  font-weight: 300;
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin-bottom: var(--s-7);
  max-width: 16ch;
}
.hero__headline em {
  font-style: italic;
  color: var(--c-accent-2);
  font-weight: 400;
}

.hero__lede {
  max-width: 60ch;
  margin-bottom: var(--s-8);
}

.hero__meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--s-6) var(--s-8);
  border-top: 1px solid var(--c-line);
  padding-top: var(--s-6);
}
.hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.hero__meta-label {
  font-size: var(--t-micro);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--c-ink-mute);
}
.hero__meta-value {
  font-family: var(--f-serif);
  font-size: 1.0625rem;
  color: var(--c-ink);
}

.hero__scroll {
  position: absolute;
  bottom: var(--s-6);
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--t-micro);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--c-ink-mute);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-2);
  animation: pulse 2.4s ease-in-out infinite;
}
.hero__scroll::after {
  content: "";
  width: 1px; height: 32px;
  background: linear-gradient(to bottom, var(--c-ink-mute), transparent);
}
@keyframes pulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, 0); }
  50%      { opacity: 1;   transform: translate(-50%, 4px); }
}

@media (max-width: 768px) {
  .hero { min-height: auto; padding-top: 7rem; padding-bottom: var(--s-9); }
  .hero__scroll { display: none; }
}

/* ============================================================
   SECTION HEADERS
   ============================================================ */

.sec-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s-3);
  margin-bottom: clamp(3rem, 5vw, 5rem);
}
.sec-head__num {
  font-family: var(--f-serif);
  font-size: var(--t-h2);
  color: var(--c-accent);
  font-style: italic;
  font-weight: 300;
  line-height: 1;
  margin-bottom: var(--s-3);
}
.sec-head__title {
  font-size: var(--t-h1);
}
.sec-head__lede {
  max-width: 56ch;
  margin-top: var(--s-4);
}

/* ============================================================
   SOBRE
   ============================================================ */

.sobre__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.sobre__portrait {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}
.sobre__portrait img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius-lg);
  filter: contrast(1.02) saturate(0.95);
}
.sobre__caption {
  font-size: var(--t-micro);
  color: var(--c-ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.sobre__body p {
  font-family: var(--f-serif);
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--c-ink-soft);
  margin-bottom: var(--s-5);
}

.cred {
  margin-top: var(--s-9);
  display: grid;
  gap: 0;
  border-top: 1px solid var(--c-line);
}
.cred__row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: var(--s-6);
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--c-line-soft);
  align-items: start;
}
.cred__year {
  font-family: var(--f-serif);
  font-size: 1.5rem;
  color: var(--c-accent);
  font-weight: 300;
  line-height: 1;
}
.cred__body strong {
  display: block;
  font-family: var(--f-serif);
  font-size: 1.0625rem;
  font-weight: 500;
  margin-bottom: var(--s-1);
  color: var(--c-ink);
}
.cred__body span {
  font-size: var(--t-small);
  color: var(--c-ink-mute);
}

@media (max-width: 920px) {
  .sobre__grid { grid-template-columns: 1fr; }
  .sobre__portrait { position: static; max-width: 320px; }
}

/* ============================================================
   INVESTIGAÇÃO
   ============================================================ */

.tracks {
  display: grid;
  gap: var(--s-7);
}
.track {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  padding-top: var(--s-7);
  border-top: 1px solid var(--c-line);
}
.track:first-child { border-top: none; padding-top: 0; }

.track__num {
  font-family: var(--f-serif);
  font-size: clamp(4rem, 8vw, 7rem);
  color: var(--c-accent);
  font-style: italic;
  font-weight: 300;
  line-height: 0.85;
  letter-spacing: -0.04em;
}
.track__body h3 {
  font-size: var(--t-h2);
  margin-bottom: var(--s-4);
  color: var(--c-ink);
}
.track__body p {
  font-family: var(--f-serif);
  font-size: 1.0625rem;
  color: var(--c-ink-soft);
  line-height: 1.6;
  margin-bottom: var(--s-5);
  max-width: 64ch;
}
.track__evidence {
  list-style: none;
  display: grid;
  gap: var(--s-3);
}
.track__evidence li {
  display: flex;
  gap: var(--s-3);
  font-size: var(--t-small);
  color: var(--c-ink-soft);
  padding-left: var(--s-4);
  position: relative;
}
.track__evidence li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.65em;
  width: 6px; height: 1px;
  background: var(--c-accent);
}

@media (max-width: 720px) {
  .track { grid-template-columns: 1fr; }
  .track__num { font-size: 4rem; }
}

/* ============================================================
   PUBLICAÇÕES
   ============================================================ */

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-bottom: var(--s-8);
  padding-bottom: var(--s-5);
  border-bottom: 1px solid var(--c-line);
}
.filter {
  background: transparent;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  padding: var(--s-2) var(--s-4);
  font-family: var(--f-sans);
  font-size: var(--t-small);
  cursor: pointer;
  color: var(--c-ink-soft);
  transition: all 0.2s var(--ease);
}
.filter:hover { color: var(--c-ink); border-color: var(--c-ink-soft); }
.filter.is-on {
  background: var(--c-ink);
  color: var(--c-bg);
  border-color: var(--c-ink);
}

.pub-search {
  width: 100%;
  max-width: 360px;
  margin-left: auto;
  margin-bottom: var(--s-5);
  position: relative;
}
.pub-search input {
  width: 100%;
  padding: var(--s-3) var(--s-4) var(--s-3) var(--s-8);
  background: transparent;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  font-family: var(--f-sans);
  font-size: var(--t-small);
  color: var(--c-ink);
  transition: border-color 0.2s var(--ease);
}
.pub-search input::placeholder { color: var(--c-ink-mute); }
.pub-search input:focus {
  outline: none;
  border-color: var(--c-ink);
}
.pub-search::before {
  content: "";
  position: absolute;
  left: 16px; top: 50%;
  width: 12px; height: 12px;
  transform: translateY(-50%);
  background: no-repeat center/contain url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236B6E73' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><circle cx='11' cy='11' r='8'/><path d='m21 21-4.3-4.3'/></svg>");
}

.pub-group {
  margin-bottom: var(--s-9);
}
.pub-group__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--s-5);
  padding-bottom: var(--s-3);
  border-bottom: 1px solid var(--c-line);
}
.pub-group__title {
  font-family: var(--f-serif);
  font-size: var(--t-h3);
  color: var(--c-ink);
}
.pub-group__count {
  font-size: var(--t-small);
  color: var(--c-ink-mute);
  font-variant-numeric: tabular-nums;
}

.pub {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--s-6);
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--c-line-soft);
  align-items: start;
  transition: background 0.2s var(--ease);
}
.pub:hover { background: var(--c-bg-soft); padding-left: var(--s-3); padding-right: var(--s-3); margin: 0 calc(-1 * var(--s-3)); }

.pub__year {
  font-family: var(--f-serif);
  font-size: 1.25rem;
  color: var(--c-accent);
  font-weight: 400;
  font-variant-numeric: tabular-nums;
}
.pub__body h4 {
  font-family: var(--f-serif);
  font-size: 1.125rem;
  font-weight: 500;
  line-height: 1.35;
  margin-bottom: var(--s-2);
  color: var(--c-ink);
}
.pub__body h4 a {
  color: inherit;
  border-bottom: 1px solid transparent;
}
.pub__body h4 a:hover { border-bottom-color: var(--c-accent); }
.pub__authors {
  font-size: var(--t-small);
  color: var(--c-ink-soft);
  margin-bottom: var(--s-2);
}
.pub__authors strong { color: var(--c-ink); }
.pub__venue {
  font-style: italic;
  font-family: var(--f-serif);
  font-size: var(--t-small);
  color: var(--c-ink-mute);
}
.pub__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-top: var(--s-3);
}
.pub__tag {
  font-size: var(--t-micro);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-ink-mute);
  background: var(--c-bg-soft);
  padding: 3px 8px;
  border-radius: 999px;
}
.pub__doi {
  font-family: var(--f-mono);
  font-size: var(--t-micro);
  color: var(--c-accent-2);
  margin-top: var(--s-2);
  display: inline-block;
}

.pub-empty {
  padding: var(--s-9) 0;
  text-align: center;
  color: var(--c-ink-mute);
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 1.125rem;
}

@media (max-width: 720px) {
  .pub { grid-template-columns: 1fr; gap: var(--s-2); }
  .pub-search { max-width: 100%; }
}

/* ============================================================
   ENSINO
   ============================================================ */

.teach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--s-6);
}
.teach-card {
  border: 1px solid var(--c-line);
  padding: var(--s-7);
  background: var(--c-paper);
  border-radius: var(--radius-lg);
  position: relative;
  transition: border-color 0.2s var(--ease), transform 0.3s var(--ease);
}
.teach-card:hover {
  border-color: var(--c-ink-soft);
  transform: translateY(-2px);
}
.teach-card__tag {
  font-family: var(--f-mono);
  font-size: var(--t-micro);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-accent);
  margin-bottom: var(--s-5);
}
.teach-card h3 {
  font-size: var(--t-h3);
  margin-bottom: var(--s-4);
  color: var(--c-ink);
}
.teach-card p {
  font-family: var(--f-serif);
  font-size: 1rem;
  color: var(--c-ink-soft);
  line-height: 1.6;
}

/* ============================================================
   PALESTRAS
   ============================================================ */

.talks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--s-5);
}
.talk {
  padding: var(--s-6);
  border-top: 1px solid var(--c-line);
  position: relative;
}
.talk__year {
  font-family: var(--f-serif);
  font-size: 1.5rem;
  color: var(--c-accent);
  font-weight: 300;
  margin-bottom: var(--s-3);
}
.talk h4 {
  font-family: var(--f-serif);
  font-size: 1.125rem;
  margin-bottom: var(--s-3);
  line-height: 1.35;
}
.talk__venue {
  font-style: italic;
  font-family: var(--f-serif);
  font-size: var(--t-small);
  color: var(--c-ink-mute);
}

/* ============================================================
   CANAL YOUTUBE
   ============================================================ */

.channel {
  background: var(--c-ink);
  color: var(--c-bg);
  padding: clamp(4rem, 10vw, 9rem) 0;
  position: relative;
  overflow: hidden;
}
.channel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 30%, rgba(184, 149, 106, 0.18), transparent 55%),
    radial-gradient(ellipse at 10% 80%, rgba(14, 91, 110, 0.25), transparent 55%);
  z-index: 0;
}
.channel > * { position: relative; z-index: 1; }
.channel .kicker { color: var(--c-accent); }
.channel .lede { color: rgba(245, 241, 234, 0.78); }
.channel h2 { color: var(--c-bg); }

.channel__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.channel__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  background: var(--c-bg);
  color: var(--c-ink);
  padding: var(--s-4) var(--s-6);
  border-radius: 999px;
  font-family: var(--f-sans);
  font-size: var(--t-small);
  font-weight: 500;
  margin-top: var(--s-6);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.channel__cta:hover {
  color: var(--c-ink);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.25);
}
.channel__cta::before {
  content: "";
  width: 18px; height: 18px;
  background: no-repeat center/contain url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%230F1419'><path d='M21.6 7.2a2.5 2.5 0 0 0-1.8-1.8C18.3 5 12 5 12 5s-6.3 0-7.8.4A2.5 2.5 0 0 0 2.4 7.2 26 26 0 0 0 2 12a26 26 0 0 0 .4 4.8 2.5 2.5 0 0 0 1.8 1.8C5.7 19 12 19 12 19s6.3 0 7.8-.4a2.5 2.5 0 0 0 1.8-1.8A26 26 0 0 0 22 12a26 26 0 0 0-.4-4.8zM10 15V9l5 3-5 3z'/></svg>");
}

.channel__placeholder {
  border: 1px solid rgba(245, 241, 234, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--s-9) var(--s-6);
  text-align: center;
  background: rgba(245, 241, 234, 0.04);
}
.channel__placeholder-mark {
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 3rem;
  color: var(--c-accent);
  margin-bottom: var(--s-3);
}
.channel__placeholder p {
  color: rgba(245, 241, 234, 0.6);
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 1rem;
  max-width: 36ch;
  margin: 0 auto;
}

@media (max-width: 920px) {
  .channel__grid { grid-template-columns: 1fr; }
}

/* ============================================================
   CONTACTO
   ============================================================ */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.contact-list {
  display: grid;
  gap: var(--s-5);
  list-style: none;
}
.contact-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--s-4);
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--c-line-soft);
  align-items: center;
}
.contact-list__label {
  font-size: var(--t-micro);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--c-ink-mute);
  margin-bottom: var(--s-1);
}
.contact-list__value {
  font-family: var(--f-serif);
  font-size: 1.125rem;
  color: var(--c-ink);
}
.contact-list__icon {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--c-line);
  display: grid;
  place-items: center;
  color: var(--c-ink-soft);
  transition: all 0.2s var(--ease);
}
.contact-list__icon:hover { background: var(--c-ink); color: var(--c-bg); border-color: var(--c-ink); }

.contact-note {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: var(--s-7);
}
.contact-note h3 {
  font-size: var(--t-h3);
  margin-bottom: var(--s-4);
}
.contact-note p {
  font-family: var(--f-serif);
  color: var(--c-ink-soft);
  font-size: 1rem;
  margin-bottom: var(--s-4);
  line-height: 1.6;
}

@media (max-width: 920px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
  background: var(--c-ink);
  color: var(--c-bg);
  padding: var(--s-9) 0 var(--s-7);
}
.footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  padding-bottom: var(--s-7);
  border-bottom: 1px solid rgba(245, 241, 234, 0.15);
}
.footer__brand h3 {
  font-family: var(--f-serif);
  font-size: 1.5rem;
  color: var(--c-bg);
  margin-bottom: var(--s-3);
}
.footer__brand p {
  font-family: var(--f-serif);
  font-style: italic;
  color: rgba(245, 241, 234, 0.7);
  font-size: 1rem;
  max-width: 40ch;
}
.footer__links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--s-5);
  list-style: none;
}
.footer__links a {
  color: rgba(245, 241, 234, 0.7);
  font-size: var(--t-small);
  display: block;
  padding: var(--s-2) 0;
}
.footer__links a:hover { color: var(--c-bg); }
.footer__links-label {
  font-size: var(--t-micro);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: rgba(245, 241, 234, 0.5);
  margin-bottom: var(--s-3);
}
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--s-6);
  font-size: var(--t-micro);
  color: rgba(245, 241, 234, 0.5);
  flex-wrap: wrap;
  gap: var(--s-3);
}

@media (max-width: 720px) {
  .footer__top { grid-template-columns: 1fr; }
}

/* ============================================================
   REVEAL ON SCROLL
   ============================================================ */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__scroll { animation: none; }
}

/* ============================================================
   UTILITÁRIOS
   ============================================================ */

.accent  { color: var(--c-accent); }
.muted   { color: var(--c-ink-mute); }
.center  { text-align: center; }

[lang] {
  /* quando muda idioma, anima nada; só repaint */
}

/* tiny screen tweaks */
@media (max-width: 480px) {
  .nav__brand-sub { display: none; }
  .hero__headline { letter-spacing: -0.04em; }
  .track__evidence { padding-left: 0; }
}