/* EtecBox — interface leve, jovem, acessível e responsiva */
:root {
  --blue: #2563EB;
  --blue-700: #1D4ED8;
  --blue-soft: #DBEAFE;
  --blue-pale: #EFF6FF;
  --ink: #1E3A5F;
  --muted: #64748B;
  --text: #172033;
  --bg: #F8FAFC;
  --card: #FFFFFF;
  --border: #E2E8F0;
  --success: #15803D;
  --success-bg: #DCFCE7;
  --danger: #B91C1C;
  --danger-bg: #FEE2E2;
  --warning: #A16207;
  --warning-bg: #FEF3C7;
  --shadow: 0 12px 36px rgba(30, 58, 95, .09);
  --radius: 18px;
  --radius-sm: 12px;
  --container: 1220px;
}

html[data-theme="escuro"] {
  --ink: #E2E8F0;
  --muted: #94A3B8;
  --text: #E5E7EB;
  --bg: #0F172A;
  --card: #111C30;
  --border: #26364F;
  --blue-soft: #18345F;
  --blue-pale: #12243F;
  --shadow: 0 12px 36px rgba(0, 0, 0, .22);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}
img, video { max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button, a, input, select { -webkit-tap-highlight-color: transparent; }
h1,h2,h3,p { margin-top: 0; }
h1,h2,h3 { color: var(--ink); line-height: 1.18; }
h1 { font-size: clamp(1.75rem, 3vw, 2.7rem); }
h2 { font-size: clamp(1.35rem, 2vw, 1.8rem); }
h3 { font-size: 1rem; }

:focus-visible {
  outline: 3px solid rgba(37, 99, 235, .4);
  outline-offset: 3px;
  border-radius: 6px;
}
.sr-only {
  position: absolute!important;
  width: 1px!important;
  height: 1px!important;
  padding: 0!important;
  margin: -1px!important;
  overflow: hidden!important;
  clip: rect(0,0,0,0)!important;
  white-space: nowrap!important;
  border: 0!important;
}
.skip-link {
  position: fixed;
  top: 8px; left: 8px;
  z-index: 9999;
  transform: translateY(-150%);
  background: var(--blue);
  color: #fff;
  padding: 10px 14px;
  border-radius: 10px;
}
.skip-link:focus { transform: translateY(0); }

.container { width: min(var(--container), calc(100% - 36px)); margin-inline: auto; }
.page-section { padding: 34px 0 56px; }
.stack { display: grid; gap: 18px; }
.stack-lg { display: grid; gap: 28px; }
.flex { display: flex; align-items: center; gap: 12px; }
.flex-wrap { flex-wrap: wrap; }
.grow { flex: 1; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.text-danger { color: var(--danger); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--card) 93%, transparent);
  backdrop-filter: blur(15px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  width: min(var(--container), calc(100% - 30px));
  min-height: 68px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 800;
  font-size: 1.24rem;
  color: var(--ink);
  white-space: nowrap;
}
.brand img { width: 34px; height: 34px; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
}
.main-nav a {
  padding: 9px 11px;
  color: var(--muted);
  border-radius: 10px;
  font-weight: 650;
  font-size: .94rem;
}
.main-nav a:hover { background: var(--blue-pale); color: var(--blue); }
.header-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.profile-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 7px 5px 5px;
  border-radius: 999px;
}
.profile-chip:hover { background: var(--blue-pale); }
.profile-chip__name {
  max-width: 110px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: .9rem;
  font-weight: 700;
}
.nav-toggle { display: none; border: 0; background: transparent; padding: 8px; }
.nav-toggle span:not(.sr-only) { display: block; width: 22px; height: 2px; margin: 4px; background: var(--ink); }

.btn {
  border: 1px solid transparent;
  border-radius: 12px;
  min-height: 42px;
  padding: 9px 16px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 7px;
  font-weight: 750;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--blue); color: white; box-shadow: 0 6px 16px rgba(37,99,235,.18); }
.btn-primary:hover { background: var(--blue-700); }
.btn-secondary { background: var(--blue-soft); color: var(--blue-700); }
.btn-ghost { border-color: var(--border); background: var(--card); color: var(--ink); }
.btn-danger { background: var(--danger); color: white; }
.btn-sm { min-height: 36px; padding: 7px 12px; border-radius: 10px; font-size: .9rem; }
.btn-block { width: 100%; }

.hero {
  padding: 46px 0 26px;
}
.hero-card {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 54px);
  border-radius: 28px;
  background:
    radial-gradient(circle at 85% 10%, rgba(134,239,172,.55), transparent 25%),
    radial-gradient(circle at 72% 80%, rgba(221,214,254,.8), transparent 28%),
    linear-gradient(135deg, var(--blue-pale), var(--blue-soft));
  border: 1px solid color-mix(in srgb, var(--blue) 15%, var(--border));
}
.hero-card::after {
  content: "";
  position: absolute;
  right: -50px; top: -65px;
  width: 230px; height: 230px;
  border: 40px solid rgba(37,99,235,.08);
  border-radius: 45px;
  transform: rotate(22deg);
}
.hero-content { position: relative; z-index: 1; max-width: 760px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(255,255,255,.72);
  color: var(--blue-700);
  border: 1px solid rgba(37,99,235,.15);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 800;
  margin-bottom: 13px;
}
html[data-theme="escuro"] .eyebrow { background: rgba(15,23,42,.5); }
.hero h1 { max-width: 700px; margin-bottom: 13px; }
.hero p { max-width: 700px; color: var(--muted); font-size: 1.05rem; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }

.category-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 0 12px;
  scrollbar-width: thin;
}
.category-pill {
  flex: 0 0 auto;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--ink);
  border-radius: 999px;
  padding: 8px 13px;
  font-weight: 700;
  font-size: .88rem;
}
.category-pill:hover { color: var(--blue); border-color: var(--blue); }

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}
.section-head h2 { margin-bottom: 2px; }
.section-head p { margin-bottom: 0; color: var(--muted); }

.video-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px 18px;
}
.video-card { min-width: 0; }
.video-card__thumb {
  position: relative;
  display: block;
  aspect-ratio: 16/9;
  background: var(--blue-pale);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 5px 18px rgba(30,58,95,.07);
}
.video-card__thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .25s ease;
}
.video-card:hover .video-card__thumb img { transform: scale(1.025); }
.thumb-placeholder {
  width: 100%; height: 100%;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--blue-soft), #DDD6FE);
  color: var(--blue-700);
  font-size: 2rem;
}
.duration-badge {
  position: absolute;
  right: 7px; bottom: 7px;
  padding: 3px 6px;
  border-radius: 6px;
  color: #fff;
  background: rgba(15,23,42,.88);
  font-size: .75rem;
  font-weight: 800;
}
.video-card__body {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 10px;
  margin-top: 10px;
}
.video-card__info { min-width: 0; }
.video-card h3 { margin: 0 0 4px; font-size: .98rem; }
.video-card h3 a {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.creator-link, .meta-line { color: var(--muted); font-size: .82rem; }
.creator-link:hover { color: var(--blue); }
.meta-line { margin: 2px 0 0; }
.category-mini {
  display: inline-block;
  margin-top: 5px;
  padding: 3px 7px;
  background: var(--blue-pale);
  color: var(--blue-700);
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 750;
}

.avatar {
  flex: 0 0 auto;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), #7C3AED);
  color: #fff;
  font-weight: 850;
  letter-spacing: -.02em;
}
.avatar-sm { width: 36px; height: 36px; font-size: .75rem; }
.avatar-lg { width: 76px; height: 76px; font-size: 1.3rem; }
.avatar-xl { width: 104px; height: 104px; font-size: 1.8rem; }
.avatar-img { border-radius: 50%; object-fit: cover; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card-pad { padding: clamp(18px, 3vw, 28px); }

.auth-layout {
  min-height: calc(100vh - 150px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 470px);
  gap: 54px;
  align-items: center;
  padding: 44px 0 64px;
}
.auth-art {
  padding: 46px;
  border-radius: 28px;
  background: linear-gradient(145deg, var(--blue-pale), var(--blue-soft));
  border: 1px solid var(--border);
}
.auth-art .brand-large { display: flex; align-items: center; gap: 12px; font-size: 1.8rem; font-weight: 850; color: var(--ink); }
.auth-art .brand-large img { width: 50px; height: 50px; }
.auth-art ul { padding-left: 20px; color: var(--muted); }
.auth-card { padding: 30px; }
.auth-card h1 { font-size: 1.8rem; margin-bottom: 8px; }

.form-grid { display: grid; gap: 17px; }
.form-row { display: grid; gap: 7px; }
.form-row label { font-weight: 750; color: var(--ink); font-size: .9rem; }
.field-hint { color: var(--muted); font-size: .82rem; margin: 0; }
.input, .select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
}
.input:focus, .select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,.12); outline: 0; }
.file-field {
  border: 1px dashed color-mix(in srgb, var(--blue) 45%, var(--border));
  background: var(--blue-pale);
  padding: 18px;
  border-radius: 14px;
}
.file-field input { max-width: 100%; }
.thumb-preview img {
  margin-top: 12px;
  width: 240px;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--border);
}
.form-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

.alert {
  padding: 12px 14px;
  border-radius: 12px;
  margin-bottom: 16px;
  border: 1px solid transparent;
}
.alert-danger { background: var(--danger-bg); color: var(--danger); border-color: color-mix(in srgb, var(--danger) 20%, transparent); }
.alert-info { background: var(--blue-pale); color: var(--blue-700); border-color: color-mix(in srgb, var(--blue) 20%, transparent); }

.flash-stack {
  position: fixed;
  right: 16px;
  top: 82px;
  z-index: 300;
  display: grid;
  gap: 9px;
  width: min(390px, calc(100% - 32px));
}
.flash {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: space-between;
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: 13px;
  padding: 12px 14px;
}
.flash-success { border-left: 4px solid var(--success); }
.flash-danger { border-left: 4px solid var(--danger); }
.flash-info { border-left: 4px solid var(--blue); }
.flash-close { border: 0; background: transparent; color: var(--muted); cursor: pointer; font-size: 1.3rem; }

.profile-hero {
  display: flex;
  gap: 22px;
  align-items: center;
  padding: 26px;
}
.profile-hero__info { flex: 1; min-width: 0; }
.profile-hero h1 { margin-bottom: 5px; }
.stat-inline { display: flex; gap: 16px; color: var(--muted); flex-wrap: wrap; font-size: .9rem; }
.stat-inline strong { color: var(--ink); }

.player-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 350px;
  gap: 26px;
}
.video-player {
  width: 100%;
  aspect-ratio: 16/9;
  background: #020617;
  border-radius: 16px;
  box-shadow: var(--shadow);
}
.video-main h1 { font-size: clamp(1.4rem, 2.5vw, 2rem); margin: 16px 0 10px; }
.video-meta-line { color: var(--muted); display: flex; gap: 7px; flex-wrap: wrap; font-size: .9rem; }
.channel-row {
  margin-top: 17px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.channel-row__info { flex: 1; }
.channel-row__info strong { display: block; color: var(--ink); }
.channel-row__info span { color: var(--muted); font-size: .84rem; }
.sidebar-videos { display: grid; gap: 14px; }
.sidebar-video {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 10px;
}
.sidebar-video .video-card__thumb { border-radius: 10px; }
.sidebar-video h3 { font-size: .88rem; margin: 0 0 4px; }
.sidebar-video p { font-size: .78rem; color: var(--muted); margin: 0; }

.table-wrap { width: 100%; overflow-x: auto; border: 1px solid var(--border); border-radius: 14px; background: var(--card); }
.data-table { width: 100%; border-collapse: collapse; min-width: 720px; }
.data-table th, .data-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.data-table th { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); background: var(--blue-pale); }
.data-table tr:last-child td { border-bottom: 0; }
.table-title { max-width: 300px; }
.status {
  display: inline-flex;
  border-radius: 999px;
  padding: 4px 8px;
  font-size: .76rem;
  font-weight: 800;
}
.status-ativo { background: var(--success-bg); color: var(--success); }
.status-removido { background: var(--danger-bg); color: var(--danger); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.stat-card {
  padding: 18px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
}
.stat-card span { color: var(--muted); font-size: .85rem; }
.stat-card strong { display: block; margin-top: 4px; font-size: 1.7rem; color: var(--ink); }

.empty-state {
  padding: 54px 24px;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: var(--card);
}
.empty-state h1, .empty-state h2 { margin-bottom: 8px; }
.empty-state p { color: var(--muted); max-width: 580px; margin: 0 auto 18px; }

.settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.theme-choice {
  position: relative;
  display: block;
  cursor: pointer;
}
.theme-choice input { position: absolute; opacity: 0; }
.theme-preview {
  padding: 18px;
  border: 2px solid var(--border);
  border-radius: 16px;
  background: var(--card);
  min-height: 140px;
}
.theme-choice input:checked + .theme-preview { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
.theme-demo-top { height: 12px; width: 44%; background: var(--blue); border-radius: 99px; margin-bottom: 14px; }
.theme-demo-card { height: 56px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg); }
.theme-name { display: block; margin-top: 10px; font-weight: 800; color: var(--ink); }

.site-footer {
  margin-top: 36px;
  border-top: 1px solid var(--border);
  background: var(--card);
}
.footer-inner {
  min-height: 88px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  color: var(--muted);
  font-size: .88rem;
}
.footer-inner p { margin: 0; }
.mobile-bottom-nav { display: none; }

.admin-nav { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.admin-nav a { padding: 8px 11px; border: 1px solid var(--border); border-radius: 10px; background: var(--card); font-weight: 700; }
.admin-nav a:hover { border-color: var(--blue); color: var(--blue); }

@media (max-width: 1020px) {
  .video-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .player-layout { grid-template-columns: 1fr; }
  .sidebar-videos { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .profile-chip__name { display: none; }
}

@media (max-width: 820px) {
  .header-inner { gap: 10px; }
  .nav-toggle { display: block; order: 2; margin-left: auto; }
  .main-nav {
    display: none;
    position: absolute;
    left: 15px; right: 15px; top: 62px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--card);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
  }
  .main-nav.is-open { display: flex; }
  .header-actions { margin-left: 0; order: 3; }
  .header-actions .profile-chip, .header-upload { display: none; }
  .auth-layout { grid-template-columns: 1fr; gap: 24px; }
  .auth-art { display: none; }
  .video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .settings-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .container { width: min(100% - 24px, var(--container)); }
  .header-inner { width: calc(100% - 20px); min-height: 60px; }
  .brand img { width: 31px; height: 31px; }
  .brand span { font-size: 1.05rem; }
  .header-actions .btn-ghost { display: none; }
  .hero { padding-top: 22px; }
  .hero-card { border-radius: 21px; padding: 26px 20px; }
  .hero-card::after { display: none; }
  .video-grid { grid-template-columns: 1fr; gap: 24px; }
  .video-card__body { grid-template-columns: 38px 1fr; }
  .profile-hero { align-items: flex-start; flex-wrap: wrap; padding: 20px; }
  .avatar-xl { width: 78px; height: 78px; }
  .sidebar-videos { grid-template-columns: 1fr; }
  .sidebar-video { grid-template-columns: 130px 1fr; }
  .channel-row { align-items: flex-start; flex-wrap: wrap; }
  .channel-row .btn { width: 100%; }
  .form-actions .btn { flex: 1; }
  .site-footer { margin-bottom: 68px; }
  .footer-inner { min-height: 100px; flex-direction: column; justify-content: center; text-align: center; gap: 4px; }
  .mobile-bottom-nav {
    position: fixed;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    z-index: 110;
    left: 0; right: 0; bottom: 0;
    min-height: 62px;
    background: color-mix(in srgb, var(--card) 96%, transparent);
    backdrop-filter: blur(14px);
    border-top: 1px solid var(--border);
    padding-bottom: env(safe-area-inset-bottom);
  }
  .mobile-bottom-nav a {
    display: grid;
    place-items: center;
    align-content: center;
    gap: 2px;
    color: var(--muted);
  }
  .mobile-bottom-nav a span { font-size: 1.2rem; line-height: 1; }
  .mobile-bottom-nav small { font-size: .69rem; font-weight: 750; }
}

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