/* =========================
   ESTUDINHO — styles.css
   Mobile-first, leve, clean
========================= */

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Nunito', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: #1F2937;
  background: #F9FAFB;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============ HEADER ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid #E5E7EB;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -.01em;
}
.brand-logo {
  height: 60px;
  width: auto;
  display: block;
}
@media (min-width: 720px) {
  .brand-logo { height: 80px; }
}

.site-nav {
  display: none;
  gap: 6px;
}
.site-nav a {
  font-weight: 700;
  font-size: 15px;
  padding: 8px 14px;
  border-radius: 999px;
  color: #374151;
  transition: background .15s, color .15s;
}
.site-nav a:hover {
  background: color-mix(in srgb, var(--c, #3B82F6) 12%, transparent);
  color: var(--c, #3B82F6);
}

@media (min-width: 720px) {
  .site-nav { display: inline-flex; }
}

/* ============ HERO (HOME) ============ */
.hero {
  padding: 48px 0 24px;
  text-align: center;
}
.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.1;
  color: #111827;
}
.hero-accent {
  background: linear-gradient(90deg, #3B82F6, #8B5CF6, #F59E0B, #10B981);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  max-width: 560px;
  margin: 0 auto;
  font-size: clamp(15px, 2.2vw, 18px);
  color: #4B5563;
}

/* ============ DISCIPLINAS GRID (HOME) ============ */
.disciplinas { padding: 24px 0 56px; }
.grid-disc {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
@media (min-width: 720px) {
  .grid-disc { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
}
@media (min-width: 980px) {
  .grid-disc { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
}

.card-disc {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  padding: 22px 20px 26px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--c), var(--c2));
  color: #fff;
  min-height: 180px;
  overflow: hidden;
  isolation: isolate;
  box-shadow: 0 8px 24px -10px color-mix(in srgb, var(--c) 60%, transparent);
  transition: transform .2s ease, box-shadow .2s ease;
}
.card-disc::after {
  content: "";
  position: absolute;
  inset: auto -40px -40px auto;
  width: 180px; height: 180px;
  background: radial-gradient(circle, rgba(255,255,255,.18), transparent 60%);
  z-index: -1;
}
.card-disc:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px -10px color-mix(in srgb, var(--c) 70%, transparent);
}
.card-disc-icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: rgba(255,255,255,.22);
}
.card-disc-icon svg { width: 26px; height: 26px; color: #fff; }
.card-disc h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -.01em;
}
.card-disc p {
  margin: 0;
  font-size: 14px;
  opacity: .92;
  font-weight: 600;
}
@media (min-width: 980px) {
  .card-disc { min-height: 220px; padding: 26px 22px 30px; }
  .card-disc h2 { font-size: 24px; }
}

/* ============ DESTAQUE (HOME) ============ */
.destaque { padding: 8px 0 64px; }
.destaque-box {
  display: flex;
  flex-direction: column;
  gap: 18px;
  background: #fff;
  border: 1px solid #E5E7EB;
  border-radius: 22px;
  padding: 24px;
}
.destaque-text h3 { margin: 0 0 6px; font-size: 20px; font-weight: 800; color: #111827; }
.destaque-text p { margin: 0; color: #4B5563; }
.destaque-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  text-align: center;
}
.destaque-stats div {
  background: #F3F4F6;
  border-radius: 14px;
  padding: 14px 8px;
}
.destaque-stats strong {
  display: block;
  font-size: 22px;
  font-weight: 900;
  color: #111827;
}
.destaque-stats span { font-size: 12px; color: #6B7280; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
@media (min-width: 720px) {
  .destaque-box {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding: 32px;
  }
  .destaque-stats { grid-template-columns: repeat(3, minmax(110px, 1fr)); }
}

/* ============ DISC HERO ============ */
.disc-hero {
  padding: 28px 0 18px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--cor-disc, #3B82F6) 12%, #fff) 0%, #F9FAFB 100%);
  border-bottom: 1px solid #E5E7EB;
}
.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 14px; color: #6B7280; font-weight: 700;
  margin-bottom: 10px;
}
.breadcrumb a { color: #6B7280; }
.breadcrumb a:hover { color: var(--cor-disc, #3B82F6); }
.disc-hero-inner {
  display: flex; flex-direction: column; gap: 12px;
  align-items: flex-start; justify-content: space-between;
}
.disc-hero h1 {
  margin: 0;
  font-size: clamp(26px, 4.6vw, 40px);
  font-weight: 900;
  color: #111827;
  letter-spacing: -.02em;
}
.disc-sub { margin: 4px 0 0; color: #4B5563; font-weight: 600; }
.btn-back {
  display: inline-flex; align-items: center;
  padding: 10px 16px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid #E5E7EB;
  font-weight: 700;
  color: #374151;
  font-size: 14px;
}
.btn-back:hover { background: #F3F4F6; }
@media (min-width: 720px) {
  .disc-hero-inner { flex-direction: row; align-items: flex-end; }
}

/* ============ FILTROS ============ */
.filtros {
  position: sticky;
  top: 64px;
  z-index: 40;
  background: rgba(249,250,251,0.92);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid #E5E7EB;
  padding: 12px 0;
}
.filtros-inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.search {
  position: relative;
  display: flex; align-items: center;
}
.search svg {
  position: absolute; left: 14px; color: #9CA3AF;
}
.search input {
  width: 100%;
  padding: 12px 14px 12px 42px;
  border-radius: 14px;
  border: 1px solid #E5E7EB;
  background: #fff;
  font-size: 15px;
  font-family: inherit;
  color: #111827;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.search input:focus {
  border-color: var(--cor-disc, #3B82F6);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--cor-disc, #3B82F6) 16%, transparent);
}
.anos {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.ano {
  flex: 0 0 auto;
  padding: 8px 14px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid #E5E7EB;
  font-weight: 700;
  font-size: 14px;
  color: #374151;
  transition: background .15s, color .15s, border-color .15s;
}
.ano:hover { background: #F3F4F6; }
.ano.active {
  background: var(--cor-disc, #3B82F6);
  border-color: var(--cor-disc, #3B82F6);
  color: #fff;
}
@media (min-width: 720px) {
  .filtros-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }
  .search { flex: 1; max-width: 420px; }
}

/* ============ JOGOS GRID ============ */
.jogos { padding: 28px 0 80px; }
.grid-jogos {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
@media (min-width: 640px) {
  .grid-jogos { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 980px) {
  .grid-jogos { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
}

.card-jogo {
  display: flex; flex-direction: column;
  background: #fff;
  border: 1px solid #E5E7EB;
  border-radius: 18px;
  overflow: hidden;
  transition: transform .15s ease, box-shadow .2s ease, border-color .15s;
}
.card-jogo:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px -12px rgba(17,24,39,.18);
  border-color: var(--cor-disc, #3B82F6);
}
.card-jogo.is-placeholder { opacity: .82; }
.card-jogo.is-placeholder:hover { transform: none; }

.thumb-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #F3F4F6;
  overflow: hidden;
}
.thumb-wrap img,
.thumb-wrap svg {
  width: 100%; height: 100%;
  object-fit: cover;
}
.badge {
  position: absolute;
  top: 10px; right: 10px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.92);
  color: #111827;
  font-size: 12px; font-weight: 800;
  letter-spacing: .02em;
  box-shadow: 0 2px 6px rgba(17,24,39,.12);
}
.badge.placeholder {
  background: #FEF3C7;
  color: #92400E;
}

.card-jogo-body {
  padding: 14px 16px 18px;
  display: flex; flex-direction: column; gap: 6px;
  flex: 1;
}
.card-jogo h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  color: #111827;
  letter-spacing: -.01em;
}
.card-jogo p {
  margin: 0;
  font-size: 14px;
  color: #4B5563;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-jogo .cta {
  margin-top: auto;
  padding-top: 12px;
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 800;
  font-size: 14px;
  color: var(--cor-disc, #3B82F6);
}

.empty {
  text-align: center;
  padding: 40px 0;
  color: #6B7280;
  font-weight: 700;
}

/* ============ FOOTER ============ */
.site-footer {
  background: #111827;
  color: #D1D5DB;
  padding: 36px 0 28px;
  margin-top: 30px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-start;
}
.footer-brand .brand-icon { font-size: 20px; }
.footer-brand strong { color: #fff; font-size: 18px; margin-left: 4px; }
.footer-brand p { margin: 6px 0 0; font-size: 13px; color: #9CA3AF; }

.footer-social {
  display: flex; gap: 10px;
}
.footer-social a {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: rgba(255,255,255,.06);
  color: #D1D5DB;
  transition: background .15s, color .15s;
}
.footer-social a:hover { background: rgba(255,255,255,.12); color: #fff; }

.copyright { margin: 0; font-size: 13px; color: #6B7280; }
@media (min-width: 720px) {
  .footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* ============ FOCUS A11Y ============ */
:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--cor-disc, #3B82F6) 70%, #fff);
  outline-offset: 2px;
}