/* Biasi Hub — identidade visual Biasi (Manual v1.0): azul #233772, amarelo #FFC82D, Montserrat */

:root {
  --azul: #233772;
  --azul-escuro: #18264f;
  --azul-claro: #e9edf7;
  --amarelo: #ffc82d;
  --amarelo-escuro: #e6b021;
  --branco: #ffffff;
  --cinza-claro: #b3b3b3;
  --cinza-fundo: #f5f6f8;
  --texto: #333333;
  --texto-suave: #5f6470;
  --raio: 14px;
  --sombra: 0 1px 2px rgba(16, 24, 40, .06), 0 4px 16px rgba(16, 24, 40, .06);
  --sombra-hover: 0 4px 8px rgba(16, 24, 40, .08), 0 16px 32px rgba(35, 55, 114, .14);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Montserrat', system-ui, sans-serif;
  color: var(--texto);
  background: var(--branco);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }

.container { width: min(1160px, 100% - 32px); margin-inline: auto; }

/* Botões */
.btn {
  display: inline-flex; align-items: center; gap: .6em;
  padding: .85em 1.5em; border-radius: 999px;
  font-weight: 700; font-size: .95rem; text-decoration: none;
  border: 2px solid transparent; cursor: pointer;
  transition: background .2s, color .2s, transform .2s, box-shadow .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 3px solid var(--amarelo); outline-offset: 3px; }
.btn--accent { background: var(--amarelo); color: var(--azul-escuro); }
.btn--accent:hover { background: var(--amarelo-escuro); box-shadow: 0 8px 20px rgba(255, 200, 45, .35); }
.btn--ghost { border-color: rgba(255, 255, 255, .6); color: var(--branco); }
.btn--ghost:hover { background: rgba(255, 255, 255, .12); }
.btn--sm { padding: .55em 1.1em; font-size: .85rem; }
.btn--lg { padding: 1em 1.9em; font-size: 1.05rem; }
.ms-logo { width: 1.1em; height: 1.1em; }

/* Topo */
.topbar {
  position: absolute; inset: 0 0 auto; z-index: 10;
  color: var(--branco);
}
.topbar--solid { position: sticky; top: 0; background: var(--azul); box-shadow: 0 2px 12px rgba(0, 0, 0, .12); }
.topbar__inner { display: flex; align-items: center; gap: 24px; height: 72px; }
.topbar__nav { display: flex; gap: 28px; margin-left: auto; }
.topbar__nav a { text-decoration: none; font-weight: 600; font-size: .92rem; opacity: .85; }
.topbar__nav a:hover { opacity: 1; color: var(--amarelo); }

.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand__logo { height: 36px; width: auto; }
.brand__text { font-weight: 800; font-size: 1.5rem; letter-spacing: .14em; color: var(--branco); }
.brand__tag {
  font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase;
  background: var(--amarelo); color: var(--azul-escuro); padding: .2em .6em; border-radius: 6px;
}

/* Hero */
.hero {
  position: relative; min-height: min(92vh, 760px);
  display: flex; align-items: center;
  color: var(--branco);
  background: var(--img, none) center / cover no-repeat, linear-gradient(135deg, var(--azul-escuro), var(--azul));
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(24, 38, 79, .94) 0%, rgba(35, 55, 114, .78) 55%, rgba(35, 55, 114, .35) 100%);
}
.hero { overflow: hidden; }
.hero__video { position: absolute; inset: 0; opacity: 0; transition: opacity 1.2s ease; pointer-events: none; }
.hero__video.is-on { opacity: 1; }
/* Cobre o hero inteiro mantendo 16:9, como background-size: cover. */
.hero__video iframe {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: max(100%, 177.78vh); height: max(100%, 56.25vw); border: 0;
}
.hero__content { position: relative; padding-block: 120px 80px; max-width: 760px; margin-left: max(16px, (100% - 1160px) / 2); }
.hero h1 { font-size: clamp(2rem, 5vw, 3.4rem); font-weight: 800; }
.hero__lead { font-size: clamp(1rem, 1.6vw, 1.2rem); opacity: .9; max-width: 600px; margin: 0 0 2rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }

.eyebrow {
  display: inline-block; margin: 0 0 1rem;
  font-size: .78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--amarelo);
}
.eyebrow--blue { color: var(--azul); }

/* Seções */
.feature { padding-block: 96px; }
.feature--alt { background: var(--cinza-fundo); }
.feature__grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center; }
.feature__grid--reverse .feature__media { order: 2; }
.feature__media {
  aspect-ratio: 4 / 3; border-radius: var(--raio); box-shadow: var(--sombra);
  background: var(--img, none) center / cover no-repeat, linear-gradient(135deg, var(--azul), #3a52a0);
  position: relative; overflow: hidden;
}
.feature__media::after {
  content: ''; position: absolute; left: 0; bottom: 0; width: 38%; height: 6px; background: var(--amarelo);
}
.feature__text h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); color: var(--azul); font-weight: 800; }
.feature__text p:not(.eyebrow) { font-size: 1.05rem; color: var(--texto-suave); }

.cta {
  padding-block: 104px; text-align: center; color: var(--branco);
  background:
    radial-gradient(circle at 15% 20%, rgba(255, 200, 45, .14), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(255, 255, 255, .08), transparent 45%),
    var(--azul);
}
.cta__inner { max-width: 720px; }
.cta h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); font-weight: 800; }
.cta p:not(.eyebrow) { opacity: .88; font-size: 1.08rem; margin: 0 0 2.2rem; }

.footer { background: var(--azul-escuro); color: rgba(255, 255, 255, .7); font-size: .85rem; }
.footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-block: 24px; }
.footer a { text-decoration: none; }
.footer a:hover { color: var(--amarelo); }

.btn--outline { border-color: var(--azul); color: var(--azul); }
.btn--outline:hover { background: var(--azul-claro); }
.yt-logo { width: 1.3em; height: 1.3em; }

.section-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 36px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); color: var(--azul); font-weight: 800; margin: 0; }

/* Vídeos */
.videos { padding-block: 96px; background: var(--cinza-fundo); }
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 24px; }
.video-card { display: flex; flex-direction: column; gap: 12px; text-decoration: none; }
.video-card__thumb {
  position: relative; aspect-ratio: 16 / 9; border-radius: var(--raio); overflow: hidden;
  background: var(--azul); box-shadow: var(--sombra);
}
.video-card__thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.video-card__thumb::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(24, 38, 79, .55)); }
.video-card__play {
  position: absolute; z-index: 1; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 58px; height: 58px; border-radius: 50%; background: var(--amarelo);
  box-shadow: 0 6px 20px rgba(0, 0, 0, .3); transition: transform .2s;
}
.video-card__play::before {
  content: ''; position: absolute; left: 23px; top: 18px;
  border-style: solid; border-width: 11px 0 11px 17px; border-color: transparent transparent transparent var(--azul-escuro);
}
.video-card:hover .video-card__thumb img { transform: scale(1.05); }
.video-card:hover .video-card__play { transform: translate(-50%, -50%) scale(1.1); }
.video-card:focus-visible { outline: 3px solid var(--amarelo); outline-offset: 4px; border-radius: var(--raio); }
.video-card__title { font-weight: 700; font-size: .95rem; color: var(--azul); line-height: 1.4; }

/* Galeria */
.gallery { padding-block: 96px; }
.gallery__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.gallery__grid img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--raio); box-shadow: var(--sombra);
}
.gallery__grid img:first-child { grid-column: span 2; grid-row: span 2; aspect-ratio: auto; height: 100%; }

/* Player em janela */
.player {
  width: min(1100px, 100% - 32px); padding: 0; border: 0; border-radius: var(--raio);
  background: #000; overflow: visible;
}
.player::backdrop { background: rgba(10, 16, 36, .85); }
.player__frame { aspect-ratio: 16 / 9; }
.player__frame iframe { width: 100%; height: 100%; border: 0; border-radius: var(--raio); display: block; }
.player__close {
  position: absolute; top: -44px; right: 0; width: 36px; height: 36px; border-radius: 50%;
  border: 0; background: var(--branco); color: var(--azul-escuro); font-size: 1.5rem; line-height: 1; cursor: pointer;
}

/* Hub */
.hub { background: var(--cinza-fundo); min-height: 100vh; display: flex; flex-direction: column; }
.hub main { flex: 1; }
.hub__main { padding-block: 48px 64px; }
.hub__head h1 { color: var(--azul); font-size: clamp(1.7rem, 3vw, 2.2rem); font-weight: 800; }
.hub__head p { color: var(--texto-suave); margin: 0 0 32px; }

.user { margin-left: auto; display: flex; align-items: center; gap: 12px; font-size: .88rem; }
.user[hidden] { display: none; }
.user__avatar {
  width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
  background: var(--amarelo); color: var(--azul-escuro); font-weight: 800; font-size: .8rem; letter-spacing: .02em;
}
.user__info { display: flex; flex-direction: column; line-height: 1.25; }
.user__name { font-weight: 700; }
.user__email { font-size: .76rem; opacity: .7; }

/* Faixa de boas-vindas com foto de obra */
.hub-hero {
  position: relative; color: var(--branco); padding-block: 56px 132px;
  background: var(--img, none) center 40% / cover no-repeat, var(--azul);
}
.hub-hero::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(24, 38, 79, .96) 0%, rgba(35, 55, 114, .86) 50%, rgba(35, 55, 114, .55) 100%);
}
.hub-hero .container { position: relative; }
.hub-hero__date { font-size: .8rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--amarelo); margin: 0 0 .8rem; }
.hub-hero h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); font-weight: 800; margin: 0 0 .4rem; }
.hub-hero p { margin: 0; opacity: .88; font-size: 1.05rem; }
.hub-hero__stats { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.stat {
  display: inline-flex; align-items: center; gap: 8px; padding: .45em 1em; border-radius: 999px;
  background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .18);
  font-size: .85rem; font-weight: 600; backdrop-filter: blur(4px);
}
.stat strong { font-weight: 800; }

.hub-content { margin-top: -88px; position: relative; padding-bottom: 64px; }
.hub-section + .hub-section { margin-top: 44px; }
.hub-section__title {
  display: flex; align-items: center; gap: 10px; margin: 0 0 18px;
  font-size: .8rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--texto-suave);
}
.hub-section:first-child .hub-section__title { color: var(--branco); }
.hub-section__title::after { content: ''; flex: 1; height: 1px; background: currentColor; opacity: .2; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px; }
.cards__loading { color: var(--branco); }

.card {
  position: relative; display: flex; flex-direction: column; gap: 14px;
  padding: 24px; min-height: 220px;
  background: var(--branco); border-radius: var(--raio); box-shadow: var(--sombra);
  text-decoration: none; overflow: hidden;
  transition: transform .25s, box-shadow .25s;
}
.card::before {
  content: ''; position: absolute; left: 0; top: 0; height: 4px; width: 100%;
  background: linear-gradient(90deg, var(--azul), #3a52a0); transition: background .25s;
}
a.card:hover { transform: translateY(-5px); box-shadow: var(--sombra-hover); }
a.card:hover::before { background: var(--amarelo); }
a.card:focus-visible { outline: 3px solid var(--amarelo); outline-offset: 3px; }
.card__top { display: flex; align-items: flex-start; justify-content: space-between; }
.card__icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--azul-claro); color: var(--azul); transition: background .25s, color .25s;
}
.card__icon svg { width: 26px; height: 26px; }
a.card:hover .card__icon { background: var(--azul); color: var(--amarelo); }
.card__arrow { width: 22px; height: 22px; color: var(--cinza-claro); transition: transform .25s, color .25s; }
a.card:hover .card__arrow { color: var(--azul); transform: translate(3px, -3px); }
.card__body { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.card__title { font-weight: 700; font-size: 1.1rem; color: var(--azul); }
.card__desc { font-size: .9rem; color: var(--texto-suave); line-height: 1.5; }
.card__foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.card__cta { font-size: .85rem; font-weight: 700; color: var(--azul); }
.card__badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .72rem; font-weight: 700; letter-spacing: .04em; padding: .3em .75em; border-radius: 999px;
}
.card__badge::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.card__badge--on { background: #e3f5ea; color: #1d7a44; }
.card__badge--off { background: #e6e7ea; color: #6b6f78; }

.cards--off .card { min-height: 0; background: #eceef1; box-shadow: none; cursor: default; }
.cards--off .card::before { background: var(--cinza-claro); }
.cards--off .card__icon { background: #dcdfe4; color: #8b9099; }
.cards--off .card__title { color: #6b6f78; }
.cards--off .card__desc { color: #8b9099; }

/* Atalhos */
.shortcuts { display: flex; flex-wrap: wrap; gap: 12px; }
.shortcut {
  display: inline-flex; align-items: center; gap: 10px; padding: .7em 1.1em;
  background: var(--branco); border-radius: 12px; box-shadow: var(--sombra);
  text-decoration: none; font-weight: 600; font-size: .9rem; color: var(--azul);
  transition: transform .2s, box-shadow .2s;
}
.shortcut:hover { transform: translateY(-2px); box-shadow: var(--sombra-hover); }
.shortcut:focus-visible { outline: 3px solid var(--amarelo); outline-offset: 3px; }
.shortcut__mark {
  width: 26px; height: 26px; border-radius: 7px; display: grid; place-items: center;
  font-size: .72rem; font-weight: 800; color: var(--branco);
}

/* Responsivo */
@media (max-width: 860px) {
  .topbar__nav { display: none; }
  .topbar .btn--accent { margin-left: auto; }
  .feature { padding-block: 64px; }
  .feature__grid { grid-template-columns: 1fr; gap: 32px; }
  .feature__grid--reverse .feature__media { order: 0; }
  .hero__content { padding-block: 112px 64px; }
  .videos, .gallery { padding-block: 64px; }
  .gallery__grid { grid-template-columns: 1fr 1fr; }
  .gallery__grid img:first-child { grid-column: span 2; grid-row: auto; aspect-ratio: 16 / 9; height: auto; }
  .gallery__grid img:last-child { display: none; }
  .user__info { display: none; }
  .hub-hero { padding-block: 40px 120px; }
  .hub-content { margin-top: -80px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}