/* =========================================================
   SUSTENTARQ 2026 — mobile first
   Ordem: tokens > base > utilitarios > componentes > secoes
   Breakpoints: 600px (tablet) / 1024px (desktop)
   ========================================================= */

:root {
  /* cor */
  --green-deep: #09221f;
  --green-dark: #0d2b27;
  --green-light: #37d8a2;
  --green-line: rgba(55, 216, 162, 0.42);
  --line-soft: rgba(255, 255, 255, 0.12);
  --surface: rgba(6, 20, 18, 0.72);
  --surface-solid: #0c2723;
  --white: #ffffff;
  --white-soft: rgba(255, 255, 255, 0.82);
  --white-muted: rgba(255, 255, 255, 0.62);

  /* espacamento — escala unica usada em todo o layout */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 2.5rem;
  --s-8: 3.5rem;
  --s-9: 4.5rem;

  /* ritmo vertical das secoes */
  --section-y: var(--s-8);
  --gutter: 1.25rem;
  --wrap: 1140px;

  /* tipografia */
  --fs-body: 1rem;
  --fs-lead: 1.0625rem;
  --fs-small: 0.875rem;
  --fs-eyebrow: 0.75rem;
  --fs-h2: 1.75rem;
  --fs-h3: 1.125rem;
  --lh-tight: 1.2;
  --lh-body: 1.65;

  --radius: 12px;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.32);
  --serif: Georgia, "Times New Roman", serif;
}

@media (min-width: 600px) {
  :root {
    --section-y: var(--s-9);
    --gutter: 2rem;
    --fs-h2: 2.125rem;
  }
}

@media (min-width: 1024px) {
  :root {
    --section-y: 6rem;
    --fs-h2: 2.5rem;
    --fs-body: 1.0625rem;
    --fs-lead: 1.125rem;
    --fs-h3: 1.1875rem;
  }
}

/* ---------- base ---------- */

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

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

body {
  background: var(--green-deep);
  color: var(--white-soft);
  font-family: Arial, Helvetica, sans-serif;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  margin: 0;
  /* espaco para a barra fixa de CTA no mobile */
  padding-bottom: 4.75rem;
}

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

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

h1,
h2,
h3 {
  color: var(--white);
  font-weight: 400;
  line-height: var(--lh-tight);
  margin: 0;
  text-wrap: balance;
}

h2 {
  font-size: var(--fs-h2);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--fs-h3);
  font-weight: 700;
  line-height: 1.3;
}

p {
  margin: 0;
}

ul,
dl {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

.sr-only {
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

/* ---------- utilitarios ---------- */

.wrap {
  margin-inline: auto;
  max-width: var(--wrap);
  padding-inline: var(--gutter);
  width: 100%;
}

.section {
  padding-block: var(--section-y);
}

.section-alt {
  background: var(--green-dark);
}

.eyebrow {
  color: var(--green-light);
  font-size: var(--fs-eyebrow);
  font-weight: 900;
  letter-spacing: 0.1em;
  margin-bottom: var(--s-3);
  text-transform: uppercase;
}

.lead {
  color: var(--white-soft);
  font-size: var(--fs-lead);
  line-height: 1.6;
}

.fine-print {
  color: var(--white-muted);
  font-size: var(--fs-small);
  line-height: 1.5;
}

/* cabecalho e rodape de secao — mesmo respiro em toda a pagina */
.section-head {
  margin-bottom: var(--s-7);
  max-width: 46rem;
}

.section-head .lead {
  margin-top: var(--s-4);
}

.section-foot {
  display: flex;
  justify-content: center;
  margin-top: var(--s-7);
}

/* ---------- botoes ---------- */

.btn {
  align-items: center;
  border-radius: 8px;
  display: inline-flex;
  font-size: var(--fs-small);
  font-weight: 900;
  gap: var(--s-2);
  justify-content: center;
  letter-spacing: 0.01em;
  line-height: 1;
  min-height: 3rem;
  padding-inline: var(--s-5);
  text-align: center;
  transition:
    background 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.btn-primary {
  background: var(--green-light);
  color: var(--green-deep);
}

.btn-primary:hover {
  background: var(--white);
  transform: translateY(-2px);
}

.btn-block {
  display: flex;
  width: 100%;
}

/* barra fixa de CTA — some no desktop */
.sticky-cta {
  backdrop-filter: blur(10px);
  background: rgba(9, 34, 31, 0.94);
  border-top: 1px solid var(--line-soft);
  bottom: 0;
  left: 0;
  padding: var(--s-3) var(--gutter);
  position: fixed;
  right: 0;
  z-index: 60;
}

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

.hero {
  align-items: center;
  display: grid;
  justify-items: center;
  min-height: calc(70.2vh - 30px);
  min-height: calc(70.2svh - 30px);
  overflow: hidden;
  padding: var(--s-9) var(--gutter);
  position: relative;
  text-align: center;
}

.hero-media {
  height: 100%;
  inset: 0;
  object-fit: cover;
  /* corta a imagem por cima, mantendo a base da foto visivel */
  object-position: center bottom;
  position: absolute;
  width: 100%;
}

.hero-scrim {
  /* verde solido no topo, esmaecendo ate ficar transparente embaixo —
     mantem o logo/texto legiveis e deixa a base do video (que agora
     fica visivel apos o corte) limpa, sem sombra por cima */
  background:
    linear-gradient(
      180deg,
      rgba(9, 34, 31, 0.9) 0%,
      rgba(9, 34, 31, 0.55) 45%,
      rgba(9, 34, 31, 0) 100%
    );
  inset: 0;
  position: absolute;
}

.hero-content {
  display: grid;
  gap: var(--s-7);
  justify-items: center;
  position: relative;
  z-index: 1;
}

.hero-date {
  color: var(--green-light);
  font-family: Georgia, 'Times New Roman', Times, serif;
  font-size: 1.3rem;
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0.16em;
  margin-bottom: calc(var(--s-7) * -1 + var(--s-2));
  text-transform: uppercase;
}

.hero-logo {
  height: auto;
  width: min(15rem, 68vw);
}

.hero-tagline {
  color: var(--white-soft);
  font-family: Georgia, 'Times New Roman', Times, serif;
  font-size: 2.35rem;
  letter-spacing: 0.02em;
  /* mais proximo da logo do que do CTA — o gap do grid ja cuida do CTA */
  margin-top: calc(var(--s-7) * -1 + var(--s-3));
  text-align: center;
}

/* ---------- faixa de fotos da edicao anterior ---------- */

.section-gallery {
  overflow: hidden;
  padding-block: var(--s-7);
}

.gallery-layout {
  align-items: center;
  display: grid;
  gap: var(--s-6);
  margin-bottom: var(--s-7);
}

.gallery-copy h2 {
  margin-bottom: var(--s-4);
}

.gallery-copy .lead strong {
  color: var(--green-light);
}

/* ---------- aftermovie (YouTube, carregado so no clique) ---------- */

.video-frame {
  aspect-ratio: 16 / 9;
  background: var(--surface-solid);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  width: 100%;
}

.video-thumb {
  height: 100%;
  inset: 0;
  object-fit: cover;
  position: absolute;
  width: 100%;
}

.video-frame::after {
  background: linear-gradient(0deg, rgba(9, 34, 31, 0.55), rgba(9, 34, 31, 0.05) 45%);
  content: "";
  inset: 0;
  pointer-events: none;
  position: absolute;
}

.video-play {
  align-items: center;
  background: var(--green-light);
  border: 0;
  border-radius: 50%;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
  cursor: pointer;
  display: flex;
  height: 4rem;
  justify-content: center;
  left: 50%;
  padding: 0;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  transition: transform 180ms ease, background 180ms ease;
  width: 4rem;
  z-index: 1;
}

.video-play:hover {
  background: var(--white);
  transform: translate(-50%, -50%) scale(1.06);
}

.video-play svg {
  fill: var(--green-deep);
  height: 1.6rem;
  margin-left: 0.2rem;
  width: 1.6rem;
}

.video-frame iframe {
  border: 0;
  height: 100%;
  inset: 0;
  position: absolute;
  width: 100%;
}

.marquee {
  /* esfuma as bordas para a faixa nao "cortar" seco
     (-webkit- e necessario para Safari abaixo da 15.4) */
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent,
    #000 6%,
    #000 94%,
    transparent
  );
  mask-image: linear-gradient(
    90deg,
    transparent,
    #000 6%,
    #000 94%,
    transparent
  );
  overflow: hidden;
  width: 100%;
}

.marquee-track {
  animation: marquee-scroll 45s linear infinite;
  display: flex;
  width: max-content;
  /* joga a animacao para a GPU — evita travada no celular */
  will-change: transform;
}

/* o espaco vai na margem (nao em gap) para o loop fechar exato em -50% */
.marquee-track li {
  margin-right: var(--s-4);
}

.marquee-track img {
  aspect-ratio: 3 / 2;
  border-radius: var(--radius);
  height: 11rem;
  object-fit: cover;
  width: auto;
}

/* Pausa so em aparelho com mouse de verdade. No celular o :hover
   "gruda" depois de um toque e a faixa ficava parada de vez. */
@media (hover: hover) and (pointer: fine) {
  .marquee:hover .marquee-track {
    animation-play-state: paused;
  }
}

@keyframes marquee-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* Celulares com "Reduzir movimento" ligado — ou em modo de baixo consumo,
   que o Safari reporta da mesma forma — nao param mais a faixa.
   Ela continua rodando sozinha, so que bem mais devagar. */
@media (prefers-reduced-motion: reduce) {
  .marquee-track {
    animation-duration: 120s;
  }
}

/* ---------- secao de valor + card de inscricao ---------- */

.value-layout {
  display: grid;
  gap: var(--s-8);
}

.value-copy h2 strong {
  color: var(--green-light);
  display: block;
  font-weight: 400;
}

.value-copy .lead {
  margin-block: var(--s-6) var(--s-5);
}

.check-list {
  display: grid;
  gap: var(--s-4);
}

.check-list li {
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: var(--s-4);
  padding-left: 2.25rem;
  position: relative;
}

.check-list li::before {
  border: 2px solid var(--green-light);
  border-radius: 50%;
  color: var(--green-light);
  content: "\2713";
  display: grid;
  font-size: 0.7rem;
  font-weight: 900;
  height: 1.4rem;
  left: 0;
  place-items: center;
  position: absolute;
  top: 0.2rem;
  width: 1.4rem;
}

.check-list strong,
.lead strong {
  color: var(--white);
}

.signup-card {
  background: var(--surface-solid);
  border: 1px solid var(--green-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--s-6) var(--s-5);
}

.signup-card h3 {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: var(--s-5);
}

.facts {
  border-top: 1px solid var(--line-soft);
  margin-bottom: var(--s-5);
}

.facts div {
  border-bottom: 1px solid var(--line-soft);
  padding-block: var(--s-3);
}

.facts dt {
  color: var(--green-light);
  font-size: var(--fs-eyebrow);
  font-weight: 900;
  letter-spacing: 0.08em;
  margin-bottom: var(--s-1);
  text-transform: uppercase;
}

.facts dd {
  color: var(--white);
  font-size: var(--fs-small);
  font-weight: 700;
  line-height: 1.4;
  margin: 0;
}

.signup-card .fine-print {
  margin-top: var(--s-3);
  text-align: center;
}

/* ---------- grade de cards numerados ---------- */

.card-grid {
  display: grid;
  gap: var(--s-4);
}

.card {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  display: grid;
  gap: var(--s-3);
  padding: var(--s-5);
}

.card-num {
  color: var(--green-light);
  font-family: var(--serif);
  font-size: 1.5rem;
  line-height: 1;
  margin-bottom: var(--s-1);
}

.card p {
  color: var(--white-muted);
  font-size: var(--fs-small);
  line-height: 1.6;
}

/* ---------- secao do evento ---------- */

.section-event {
  border-left: 6px solid var(--green-light);
}

.event-layout {
  display: grid;
  gap: var(--s-7);
}

.event-copy h2 {
  margin-bottom: var(--s-5);
}

.event-copy p {
  margin-bottom: var(--s-4);
  max-width: 42rem;
}

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

.event-proof {
  border-radius: var(--radius);
  overflow: hidden;
}

.event-proof img {
  aspect-ratio: 4 / 3;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

/* ---------- palestrantes ---------- */

.speaker-grid {
  display: grid;
  gap: var(--s-4);
}

.speaker-card {
  background: var(--surface-solid);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.speaker-image {
  aspect-ratio: 16 / 9;
  position: relative;
}

.speaker-photo {
  height: 100%;
  inset: 0;
  object-fit: cover;
  position: absolute;
  width: 100%;
}

.is-placeholder .speaker-photo {
  filter: grayscale(1) brightness(0.5);
}

.speaker-info {
  display: flex;
  flex-direction: column;
  padding: var(--s-4);
}

/* O cargo ocupa 1 ou 2 linhas conforme o tamanho do nome da empresa.
   Reservar sempre 2 linhas faz a regua divisoria e o inicio da bio
   cairem na mesma altura em todos os cards da fileira. */
.speaker-role {
  color: var(--green-light);
  font-size: var(--fs-eyebrow);
  font-weight: 900;
  letter-spacing: 0.06em;
  line-height: 1.35;
  margin-block: var(--s-1) var(--s-3);
  min-height: calc(2 * 1.35em);
  text-transform: uppercase;
}

.speaker-card h3 {
  line-height: 1.25;
  min-height: calc(1 * 1.25em);
}

.speaker-bio {
  border-top: 1px solid var(--line-soft);
  color: var(--white-muted);
  font-size: var(--fs-small);
  line-height: 1.45;
  padding-top: var(--s-3);
}

/* ---------- patrocinadores ---------- */

.section-sponsors {
  background: #f3efe6;
}

.section-sponsors .eyebrow {
  color: var(--green-deep);
}

.section-sponsors h2 {
  color: var(--green-deep);
}

.sponsor-logos {
  align-items: center;
  background: var(--surface-solid);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  display: flex;
  /* Mobile: uma logo por linha, centralizada. */
  flex-direction: column;
  flex-wrap: wrap;
  gap: var(--s-6) var(--s-7);
  justify-content: center;
  padding: var(--s-6) var(--s-5);
}

/* As proporcoes variam de 2:1 (DUO) a 8:1 (Grupo Miami).
   Cada logo recebe uma caixa de altura e largura maximas e usa
   object-fit: contain — assim o peso optico fica equivalente
   sem precisar de ajuste manual por marca. */
.sponsor-logos img {
  filter: brightness(0) invert(1);
  max-height: 2.75rem;
  max-width: 9rem;
  object-fit: contain;
  opacity: 0.85;
  transition: opacity 180ms ease;
  width: auto;
}

.sponsor-logos img:hover {
  opacity: 1;
}

/* ---------- local ---------- */

.location-layout {
  display: grid;
  gap: var(--s-7);
}

.location-image {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  object-fit: cover;
  width: 100%;
}

.location-copy h2 {
  margin-bottom: var(--s-5);
}

.location-copy p {
  margin-bottom: var(--s-4);
  max-width: 34rem;
}

.location-copy .btn {
  margin-top: var(--s-3);
}

/* ---------- faq ---------- */

.faq-layout {
  display: grid;
  gap: var(--s-7);
}

.faq-intro .lead {
  margin-top: var(--s-4);
}

.faq-intro a {
  border-bottom: 1px solid var(--green-line);
  color: var(--green-light);
  font-weight: 700;
  transition: border-color 180ms ease;
}

.faq-intro a:hover {
  border-bottom-color: var(--green-light);
}

.faq-list details {
  border-bottom: 1px solid var(--line-soft);
}

.faq-list summary {
  color: var(--white);
  cursor: pointer;
  font-weight: 700;
  list-style: none;
  padding: var(--s-4) 2rem var(--s-4) 0;
  position: relative;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  color: var(--green-light);
  content: "+";
  font-size: 1.25rem;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}

.faq-list details[open] summary::after {
  content: "\2013";
}

.faq-list details p {
  color: var(--white-muted);
  font-size: var(--fs-small);
  line-height: 1.6;
  padding-bottom: var(--s-5);
  padding-right: var(--s-5);
}

/* ---------- rodape ---------- */

.footer {
  background: var(--green-deep);
  border-top: 1px solid var(--line-soft);
  padding-block: var(--s-7);
}

.footer-inner {
  display: grid;
  gap: var(--s-5);
}

.footer img {
  height: 2.25rem;
  object-fit: contain;
  width: auto;
}

.footer-meta p {
  font-size: var(--fs-small);
}

.footer-meta .fine-print {
  margin-top: var(--s-2);
}

.footer a {
  color: var(--green-light);
  font-weight: 700;
}

.footer-link {
  font-size: var(--fs-small);
}

/* =========================================================
   TABLET — 600px
   ========================================================= */

@media (min-width: 600px) {
  .card-grid,
  .speaker-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-logo {
    width: min(20rem, 50vw);
  }

  .hero-tagline {
    font-size: 2.5rem;
  }

  .video-play {
    height: 4.75rem;
    width: 4.75rem;
  }

  .video-play svg {
    height: 2rem;
    width: 2rem;
  }

  .marquee-track img {
    height: 14rem;
  }

  .marquee-track li {
    margin-right: var(--s-5);
  }

  .signup-card {
    padding: var(--s-7) var(--s-6);
  }

  .sponsor-logos {
    flex-direction: row;
  }

  .sponsor-logos img {
    max-height: 3.25rem;
    max-width: 11rem;
  }

  .footer-inner {
    align-items: center;
    grid-template-columns: auto 1fr auto;
  }
}

/* =========================================================
   DESKTOP — 1024px
   ========================================================= */

@media (min-width: 1024px) {
  body {
    padding-bottom: 0;
  }

  .sticky-cta {
    display: none;
  }

  .hero {
    min-height: calc(79.2vh - 30px);
    min-height: calc(79.2svh - 30px);
  }

  .hero-date {
    font-size: 1.5rem;
  }

  .hero-logo {
    width: 24rem;
  }

  .section-gallery {
    padding-block: var(--s-8);
  }

  .gallery-layout {
    gap: var(--s-9);
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    margin-bottom: var(--s-8);
  }

  .marquee-track img {
    height: 18rem;
  }

  .value-layout {
    align-items: start;
    gap: var(--s-9);
    grid-template-columns: minmax(0, 1fr) 22rem;
  }

  .signup-card {
    position: sticky;
    top: var(--s-6);
  }

  .card-grid {
    gap: var(--s-5);
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .card {
    padding: var(--s-5) var(--s-4);
  }

  .speaker-grid {
    gap: var(--s-5);
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .section-event {
    border-left-width: 10px;
  }

  .event-layout {
    align-items: stretch;
    gap: var(--s-8);
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .event-proof img {
    aspect-ratio: auto;
    min-height: 32rem;
  }

  .location-layout {
    align-items: center;
    gap: var(--s-9);
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .faq-layout {
    align-items: start;
    gap: var(--s-9);
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  }

  .faq-intro {
    position: sticky;
    top: var(--s-6);
  }
}