/* =========================
   SUMUS LAB — UI Premium
   Netflix + Masterclass + Spotify + SaaS Dashboard
   ========================= */

:root{
  /* Palette (obligatoria) */
  --bg-main: #0B0B12;
  --bg-soft: rgba(255,255,255,0.06);
  --primary: #8B5CFF;
  --primary-strong: #6A00FF;
  --accent-glow: #B45CFF;
  --text-main: rgba(255,255,255,0.92);
  --text-muted: rgba(195,206,224,0.70);

  /* Extra tokens */
  --stroke: rgba(255,255,255,0.10);
  --stroke2: rgba(255,255,255,0.14);
  --shadow: 0 20px 60px rgba(5,4,10,0.70);
  --shadow2: 0 18px 48px rgba(106,0,255,0.10);
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 12px;

  --grad-1: radial-gradient(1200px 700px at 10% 10%, rgba(139,92,255,0.35), transparent 55%),
            radial-gradient(900px 700px at 70% 0%, rgba(106,0,255,0.28), transparent 55%),
            radial-gradient(1100px 900px at 80% 80%, rgba(52,8,255,0.18), transparent 55%);
  --grad-2: linear-gradient(120deg, rgba(139,92,255,0.95), rgba(106,0,255,0.85), rgba(41,66,255,0.70));
  --grad-3: linear-gradient(135deg, rgba(180,92,255,0.35), rgba(106,0,255,0.12), rgba(14,14,22,0));
  --glass: blur(16px);

  --font-ui: "Manrope", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  --font-display: "Lexend Deca", "Manrope", system-ui, sans-serif;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: var(--font-ui);
  color: var(--text-main);
  background: var(--bg-main);
  overflow-x:hidden;
}

a{ color:inherit; text-decoration:none; }
button, input{ font:inherit; }
::selection{ background: rgba(180,92,255,0.35); }

/* ===== Ambient Background ===== */
.bgAmbient{
  position: fixed;
  inset: 0;
  pointer-events:none;
  z-index: 0;
  background: var(--grad-1);
}
.bgOrb{
  position:absolute;
  filter: blur(20px);
  opacity: 0.85;
  transform: translateZ(0);
}
.orb1{
  width: 640px; height: 640px;
  border-radius: 50%;
  left: -180px; top: -120px;
  background: radial-gradient(circle at 30% 30%, rgba(180,92,255,0.9), rgba(106,0,255,0.25), transparent 60%);
  animation: float1 10s ease-in-out infinite;
}
.orb2{
  width: 520px; height: 520px;
  border-radius: 50%;
  right: -160px; top: 120px;
  background: radial-gradient(circle at 40% 30%, rgba(139,92,255,0.85), rgba(41,66,255,0.20), transparent 62%);
  animation: float2 12s ease-in-out infinite;
}
.orb3{
  width: 720px; height: 720px;
  border-radius: 50%;
  left: 38%; bottom: -320px;
  background: radial-gradient(circle at 40% 30%, rgba(106,0,255,0.70), rgba(180,92,255,0.12), transparent 62%);
  animation: float3 14s ease-in-out infinite;
}

.bgGrid{
  position:absolute; inset:0;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 60% 20%, black 10%, transparent 60%);
}
.bgNoise{
  position:absolute; inset:0;
  opacity: 0.10;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.7' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='260' height='260' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}
.bgVignette{
  position:absolute; inset:-1px;
  background: radial-gradient(1200px 800px at 50% 0%, transparent 40%, rgba(0,0,0,0.55) 100%);
}

@keyframes float1{ 0%,100%{ transform: translate(0,0) } 50%{ transform: translate(40px, 22px) } }
@keyframes float2{ 0%,100%{ transform: translate(0,0) } 50%{ transform: translate(-34px, 26px) } }
@keyframes float3{ 0%,100%{ transform: translate(0,0) } 50%{ transform: translate(28px, -18px) } }


.bgAurora{
  position:absolute;
  inset:-30%;
  background:
    radial-gradient(900px 520px at 20% 30%, rgba(180,92,255,0.34), transparent 60%),
    radial-gradient(760px 460px at 80% 20%, rgba(41,66,255,0.22), transparent 60%),
    radial-gradient(780px 520px at 70% 80%, rgba(106,0,255,0.26), transparent 60%),
    radial-gradient(720px 520px at 10% 85%, rgba(180,92,255,0.20), transparent 65%);
  filter: blur(28px) saturate(1.15);
  opacity: 0.75;
  transform: translateZ(0);
  animation: auroraMove 14s ease-in-out infinite;
  mix-blend-mode: screen;
}

@keyframes auroraMove{
  0%{ transform: translate3d(-2%, -1%, 0) scale(1.05) rotate(-2deg); }
  35%{ transform: translate3d(2%, 1%, 0) scale(1.10) rotate(1deg); }
  70%{ transform: translate3d(1%, -2%, 0) scale(1.08) rotate(2deg); }
  100%{ transform: translate3d(-2%, -1%, 0) scale(1.05) rotate(-2deg); }
}

/* Solid, rounded icons */
.icon{
  width: 18px;
  height: 18px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.icon svg{ width: 18px; height: 18px; display:block; fill: currentColor; }

/* ===== Shell ===== */
.appShell{
  min-height:100%;
  position:relative;
  z-index: 1;
  display:grid;
  grid-template-columns: 300px 1fr;
  gap: 18px;
  padding: 18px;
}

/* ===== Glass + Glow utils ===== */
.glass{
  background: linear-gradient(180deg, rgba(255,255,255,0.09), rgba(255,255,255,0.05));
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow), var(--shadow2);
  backdrop-filter: var(--glass);
  -webkit-backdrop-filter: var(--glass);
}
.glowBorder{
  position: relative;
}
.glowBorder::before{
  content:"";
  position:absolute; inset:-1px;
  border-radius: inherit;
  padding:1px;
  background: linear-gradient(130deg, rgba(180,92,255,0.7), rgba(106,0,255,0.20), rgba(41,66,255,0.35));
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  pointer-events:none;
  opacity: 0.9;
}
.softGlow{
  box-shadow:
    0 0 0 1px rgba(180,92,255,0.10),
    0 30px 80px rgba(106,0,255,0.12);
}

/* ===== Sidebar ===== */
.sidebar{
  position: sticky;
  top: 18px;
  height: calc(100vh - 36px);
  border-radius: var(--radius-xl);
  padding: 16px;
  display:flex;
  flex-direction:column;
  gap: 16px;
  overflow:hidden;
}
.sidebar::after{
  content:"";
  position:absolute; inset:0;
  pointer-events:none;
  background: radial-gradient(600px 400px at 30% 0%, rgba(180,92,255,0.18), transparent 60%);
  opacity: 0.9;
}

.brand{
  display:flex; align-items:center; gap: 12px;
  padding: 8px 8px 12px 8px;
}
.brandMark{
  width: 46px; height: 46px;
  border-radius: 14px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  position:relative;
  overflow:hidden;
}
.brandMarkCore{
  position:absolute; inset: -40%;
  background: conic-gradient(from 210deg, rgba(180,92,255,0.9), rgba(106,0,255,0.55), rgba(41,66,255,0.40), rgba(180,92,255,0.9));
  filter: blur(0px);
  animation: spin 7s linear infinite;
}
@keyframes spin { to{ transform: rotate(360deg) } }

.brandText{ display:flex; flex-direction:column; line-height:1.05; }
.brandName{
  font-family: var(--font-display);
  letter-spacing: 0.6px;
  font-weight: 700;
  font-size: 16px;
}
.brandName span{ color: rgba(180,92,255,0.95); }
.brandTag{ font-size: 12px; color: var(--text-muted); margin-top: 3px; }

.nav{
  display:flex; flex-direction:column; gap: 6px;
  padding: 8px;
}
.navItem{
  position:relative;
  display:flex; align-items:center; gap: 10px;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid transparent;
  color: rgba(255,255,255,0.86);
  transition: transform .22s ease, background .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.navIcon{ width: 26px; display:grid; place-items:center; opacity:0.9; }
.navLabel{ font-weight: 600; letter-spacing: 0.2px; }
.navGlow{
  position:absolute; inset: 0;
  border-radius: 14px;
  background: radial-gradient(180px 120px at 22% 35%, rgba(180,92,255,0.25), transparent 55%);
  opacity:0;
  transition: opacity .22s ease;
  pointer-events:none;
}
.navItem:hover{
  transform: translateY(-1px);
  background: rgba(255,255,255,0.06);
  border-color: rgba(180,92,255,0.18);
  box-shadow: 0 12px 40px rgba(106,0,255,0.12);
}
.navItem:hover .navGlow{ opacity:1; }
.navItem.isActive{
  background: linear-gradient(180deg, rgba(180,92,255,0.22), rgba(255,255,255,0.05));
  border-color: rgba(180,92,255,0.28);
  box-shadow: 0 18px 55px rgba(106,0,255,0.18);
}
.navItem.isActive .navGlow{ opacity: 1; }

.sidebarFooter{
  margin-top:auto;
  display:flex;
  flex-direction:column;
  gap: 12px;
  padding: 8px;
  position:relative;
}
.miniCard{
  border-radius: var(--radius-lg);
  padding: 14px;
}
.miniCardTitle{
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.4px;
}
.miniCardSub{
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.45;
}
.sidebarHint{
  display:flex; gap: 8px; align-items:center;
  font-size: 11px;
  color: rgba(195,206,224,0.60);
}
.dot{
  width: 7px; height: 7px; border-radius: 50%;
  background: rgba(180,92,255,0.85);
  box-shadow: 0 0 16px rgba(180,92,255,0.6);
}

/* ===== Main ===== */
.main{
  min-width: 0;
  display:flex;
  flex-direction:column;
  gap: 14px;
  padding-bottom: 120px;
}
.topbar{
  border-radius: var(--radius-xl);
  padding: 14px 16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
}
.topLeft{ min-width: 0; }
.crumbs{
  font-size: 12px;
  color: rgba(195,206,224,0.65);
  letter-spacing: 0.6px;
  text-transform: uppercase;
}
.topTitle{
  margin-top: 5px;
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.2px;
  text-shadow: 0 18px 60px rgba(106,0,255,0.25);
}

.topRight{
  display:flex;
  align-items:center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content:flex-end;
}
.searchWrap{
  position: relative;
  display:flex;
  align-items:center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 16px;
  background: rgba(0,0,0,0.25);
  border: 1px solid rgba(255,255,255,0.10);
  box-shadow: 0 14px 40px rgba(0,0,0,0.35);
  min-width: 320px;
}
.searchIcon{ opacity:0.8; color: rgba(195,206,224,0.85); }
.search{
  border:none; outline:none;
  background: transparent;
  color: var(--text-main);
  width: 100%;
  font-size: 13px;
}
.search::placeholder{ color: rgba(195,206,224,0.55); }
.searchClear{
  border: none;
  background: transparent;
  color: rgba(195,206,224,0.75);
  width: 30px; height: 30px;
  border-radius: 10px;
  cursor:pointer;
  transition: background .18s ease, color .18s ease;
}
.searchClear:hover{ background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.9); }

.chipRow{ display:flex; gap: 8px; }
.chip{
  border:none;
  cursor:pointer;
  padding: 10px 12px;
  border-radius: 999px;
  color: rgba(255,255,255,0.88);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
  font-size: 12px;
  font-weight: 600;
}
.chip:hover{
  transform: translateY(-1px);
  background: rgba(180,92,255,0.14);
  border-color: rgba(180,92,255,0.22);
  box-shadow: 0 14px 44px rgba(106,0,255,0.12);
}
.chip.isActive{
  background: linear-gradient(180deg, rgba(180,92,255,0.28), rgba(255,255,255,0.07));
  border-color: rgba(180,92,255,0.34);
}

/* ===== Views ===== */
.viewHost{
  border-radius: var(--radius-xl);
  overflow:hidden;
  position: relative;
}
.view{
  border-radius: var(--radius-xl);
  padding: 16px;
  min-height: calc(100vh - 36px - 86px - 14px); /* shell padding + dock */
}
.viewFadeIn{
  animation: viewIn .28s ease both;
}
@keyframes viewIn{
  from{ opacity:0; transform: translateY(10px); filter: blur(4px); }
  to{ opacity:1; transform: translateY(0); filter: blur(0); }
}

/* ===== Hero ===== */
.hero{
  border-radius: var(--radius-xl);
  overflow:hidden;
  position:relative;
  padding: 22px;
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 14px;
  min-height: 260px;
}
.hero::before{
  content:"";
  position:absolute; inset:0;
  background: radial-gradient(900px 400px at 10% 20%, rgba(180,92,255,0.38), transparent 60%),
              radial-gradient(700px 400px at 80% 0%, rgba(41,66,255,0.22), transparent 60%),
              linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
  pointer-events:none;
}
.heroLeft{ position:relative; z-index:1; }
.heroTitle{
  font-family: var(--font-display);
  font-size: 44px;
  letter-spacing: -0.6px;
  line-height: 1.02;
  margin: 0;
}
.heroTitle span{
  background: var(--grad-2);
  -webkit-background-clip: text;
  background-clip:text;
  color: transparent;
  filter: drop-shadow(0 14px 40px rgba(106,0,255,0.30));
}
.heroSub{
  margin-top: 10px;
  color: rgba(195,206,224,0.72);
  max-width: 58ch;
  line-height: 1.55;
}
.heroActions{
  margin-top: 16px;
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
}
.btn{
  border:none;
  cursor:pointer;
  border-radius: 999px;
  padding: 12px 18px;
  display:inline-flex;
  align-items:center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
  user-select:none;
}
.btnIcon{ opacity:0.95; }
.btnPrimary{
  background: linear-gradient(135deg, rgba(139,92,255,0.95), rgba(106,0,255,0.85), rgba(41,66,255,0.75));
  box-shadow: 0 18px 55px rgba(106,0,255,0.22);
  color: rgba(255,255,255,0.96);
  position:relative;
  overflow:hidden;
}
.btnPrimary::after{
  content:"";
  position:absolute; inset:-2px;
  background: radial-gradient(220px 120px at 20% 30%, rgba(255,255,255,0.18), transparent 55%);
  opacity:0.7;
  transform: translateX(-18%);
  animation: shimmer 3.8s ease-in-out infinite;
}
@keyframes shimmer{
  0%,100%{ transform: translateX(-18%); opacity: .35; }
  50%{ transform: translateX(18%); opacity: .75; }
}
.btnPrimary:hover{ transform: translateY(-1px); box-shadow: 0 22px 70px rgba(106,0,255,0.28); }
.btnGhost{
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.90);
}
.btnGhost:hover{
  transform: translateY(-1px);
  background: rgba(180,92,255,0.12);
  border-color: rgba(180,92,255,0.22);
  box-shadow: 0 18px 55px rgba(106,0,255,0.14);
}
.btnSmall{
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 12px;
}

.heroRight{
  position:relative;
  z-index:1;
  display:flex;
  flex-direction:column;
  gap: 10px;
}
.heroStatRow{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.stat{
  border-radius: var(--radius-lg);
  padding: 12px;
  background: rgba(0,0,0,0.22);
  border: 1px solid rgba(255,255,255,0.10);
}
.statN{
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: -0.2px;
}
.statL{
  margin-top: 5px;
  font-size: 12px;
  color: rgba(195,206,224,0.68);
}
.heroNow{
  border-radius: var(--radius-lg);
  padding: 12px;
  display:flex;
  gap: 12px;
  align-items:center;
  background: rgba(0,0,0,0.22);
  border: 1px solid rgba(255,255,255,0.10);
}
.nowCover{
  width: 58px;
  aspect-ratio: 1 / 1;
  border-radius: 14px;
  background: var(--grad-3);
  border: 1px solid rgba(180,92,255,0.20);
  box-shadow: 0 16px 45px rgba(106,0,255,0.18);
  position:relative;
  overflow:hidden;
}
.nowCover::before{
  content:"";
  position:absolute; inset:-30%;
  background: conic-gradient(from 90deg, rgba(180,92,255,0.55), rgba(41,66,255,0.25), rgba(106,0,255,0.45), rgba(180,92,255,0.55));
  filter: blur(0px);
  animation: spin 8s linear infinite;
}
.nowMeta{ min-width:0; }
.nowTitle{
  font-weight: 800;
  letter-spacing: 0.2px;
  white-space: nowrap;
  overflow:hidden;
  text-overflow: ellipsis;
}
.nowSub{
  margin-top: 4px;
  color: rgba(195,206,224,0.70);
  font-size: 12px;
  white-space: nowrap;
  overflow:hidden;
  text-overflow: ellipsis;
}

/* ===== Section Titles ===== */
.section{
  margin-top: 16px;
}
.sectionHead{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap: 12px;
  padding: 6px 6px 10px 6px;
}
.sectionTitle{
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: -0.2px;
}
.sectionSub{
  margin-top: 4px;
  color: rgba(195,206,224,0.62);
  font-size: 12px;
}
.sectionActions{
  display:flex; gap: 8px; align-items:center;
}
.iconBtn{
  width: 40px; height: 40px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  color: rgba(255,255,255,0.88);
  cursor:pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.iconBtn:hover{
  transform: translateY(-1px);
  background: rgba(180,92,255,0.12);
  border-color: rgba(180,92,255,0.22);
  box-shadow: 0 18px 55px rgba(106,0,255,0.12);
}

/* ===== Carousels ===== */
.carousel{
  position: relative;
  padding: 2px 0 10px 0;
}
.rail{
  display:flex;
  gap: 12px;
  overflow-x:auto;
  scroll-snap-type: x mandatory;
  padding: 6px 6px 12px 6px;
  scrollbar-width: none;
}
.rail::-webkit-scrollbar{ width:0; height:0; }
.card{
  scroll-snap-align: start;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.22);
  box-shadow: 0 18px 55px rgba(0,0,0,0.35);
  overflow:hidden;
  cursor:pointer;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
  min-width: 200px;
  position: relative;
}
.card:hover{
  transform: translateY(-2px);
  border-color: rgba(180,92,255,0.26);
  box-shadow: 0 26px 70px rgba(106,0,255,0.14);
}
.card::after{
  content:"";
  position:absolute; inset:0;
  pointer-events:none;
  background: radial-gradient(260px 160px at 22% 30%, rgba(180,92,255,0.18), transparent 60%);
  opacity: 0;
  transition: opacity .18s ease;
}

.card[data-kind="book"], .card[data-kind="audiobook"]{ min-width: 220px; }
.card[data-kind="video"]{ min-width: 360px; }
.card[data-kind="seminar"]{ min-width: 340px; }
@media (max-width: 920px){
  .card[data-kind="video"]{ min-width: 320px; }
  .card[data-kind="seminar"]{ min-width: 300px; }
}


.card:hover::after{ opacity:1; }

.cover{
  width: 100%;
  background: linear-gradient(135deg, rgba(139,92,255,0.30), rgba(106,0,255,0.12), rgba(0,0,0,0.02));
  border-bottom: 1px solid rgba(255,255,255,0.08);
  position: relative;
  overflow:hidden;
}
.cover::before{
  content:"";
  position:absolute; inset:-40%;
  background: conic-gradient(from 240deg, rgba(180,92,255,0.55), rgba(41,66,255,0.25), rgba(106,0,255,0.45), rgba(180,92,255,0.55));
  opacity: 0.75;
  filter: blur(0px);
  animation: spin 10s linear infinite;
}
.cover::after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(0,0,0,0.00), rgba(0,0,0,0.30));
}
.coverInner{
  position:absolute; inset:0;
  padding: 14px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  gap: 6px;
  z-index: 1;
}
.badgeRow{ display:flex; gap: 8px; flex-wrap: wrap; }
.badge{
  font-size: 11px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(0,0,0,0.30);
  border: 1px solid rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.88);
}
.badgeGlow{
  background: rgba(180,92,255,0.20);
  border-color: rgba(180,92,255,0.22);
}

.cardBody{
  padding: 12px 12px 12px 12px;
}
.cardTitle{
  font-weight: 900;
  letter-spacing: 0.15px;
  line-height: 1.15;
  margin:0;
  display:-webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow:hidden;
}
.cardMeta{
  margin-top: 8px;
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  color: rgba(195,206,224,0.70);
  font-size: 12px;
}
.metaDot{
  opacity:0.55;
}

/* Cover aspect ratios per requirement */
.cover.book{ aspect-ratio: 3 / 4; }        /* books/audiobooks */
.cover.video{ aspect-ratio: 16 / 9; }      /* videos */
.cover.seminar{ aspect-ratio: 4 / 3; }     /* seminars */

/* ===== Library grid ===== */
.libraryHead{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap: 12px;
  padding: 6px 6px 12px 6px;
}
.filters{
  display:flex; gap: 8px; flex-wrap: wrap;
}
.filterBtn{
  border:none;
  cursor:pointer;
  border-radius: 999px;
  padding: 10px 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.88);
  transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
  font-size: 12px;
  font-weight: 700;
}
.filterBtn:hover{
  transform: translateY(-1px);
  background: rgba(180,92,255,0.12);
  border-color: rgba(180,92,255,0.22);
  box-shadow: 0 18px 55px rgba(106,0,255,0.12);
}
.filterBtn.isActive{
  background: linear-gradient(180deg, rgba(180,92,255,0.28), rgba(255,255,255,0.07));
  border-color: rgba(180,92,255,0.34);
}

.grid{
  display:grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  padding: 6px;
}
.grid .card{ min-width: 0; }

/* ===== Seminar detail ===== */
.detail{
  padding: 8px 6px 6px 6px;
}
.detailTop{
  display:grid;
  grid-template-columns: 420px 1fr;
  gap: 14px;
  align-items:stretch;
}
.detailCover{
  border-radius: var(--radius-xl);
  overflow:hidden;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.20);
  position:relative;
}
.detailCover .cover{ border-bottom:none; }
.detailPanel{
  border-radius: var(--radius-xl);
  padding: 16px;
  position:relative;
  overflow:hidden;
}
.detailPanel::before{
  content:"";
  position:absolute; inset:0;
  pointer-events:none;
  background: radial-gradient(700px 260px at 30% 10%, rgba(180,92,255,0.22), transparent 60%),
              radial-gradient(700px 260px at 90% 40%, rgba(41,66,255,0.15), transparent 60%);
}
.detailPanel > *{ position:relative; z-index:1; }
.detailTitle{
  font-family: var(--font-display);
  font-size: 34px;
  line-height: 1.05;
  letter-spacing: -0.5px;
  margin: 2px 0 8px 0;
}
.detailDesc{
  color: rgba(195,206,224,0.72);
  line-height: 1.6;
  max-width: 75ch;
}
.detailActions{
  margin-top: 14px;
  display:flex;
  gap: 10px;
  flex-wrap:wrap;
}
.kpiRow{
  margin-top: 14px;
  display:flex;
  gap: 10px;
  flex-wrap:wrap;
}
.kpi{
  border-radius: 999px;
  padding: 9px 12px;
  background: rgba(0,0,0,0.22);
  border: 1px solid rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.88);
  font-size: 12px;
  font-weight: 700;
}
.kpi strong{ color: rgba(180,92,255,0.95); }

.episodes{
  margin-top: 14px;
  border-radius: var(--radius-xl);
  overflow:hidden;
}
.episodesHead{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 14px 10px 14px;
}
.episodesTitle{
  font-family: var(--font-display);
  font-size: 18px;
}
.episodeList{
  display:flex;
  flex-direction:column;
  gap: 10px;
  padding: 12px 14px 14px 14px;
}
.episode{
  border-radius: var(--radius-lg);
  overflow:hidden;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.20);
  display:grid;
  grid-template-columns: 220px 1fr auto;
  gap: 12px;
  align-items:stretch;
  cursor:pointer;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.episode:hover{
  transform: translateY(-1px);
  border-color: rgba(180,92,255,0.24);
  box-shadow: 0 24px 70px rgba(106,0,255,0.12);
}
.episodeThumb{
  aspect-ratio: 16 / 9;
  width: 100%;
  position:relative;
  overflow:hidden;
  background: linear-gradient(135deg, rgba(139,92,255,0.32), rgba(106,0,255,0.12), rgba(41,66,255,0.12));
  border-right: 1px solid rgba(255,255,255,0.08);
}
.episodeThumb::before{
  content:"";
  position:absolute; inset:-40%;
  background: conic-gradient(from 240deg, rgba(180,92,255,0.55), rgba(41,66,255,0.25), rgba(106,0,255,0.45), rgba(180,92,255,0.55));
  opacity: 0.70;
  animation: spin 11s linear infinite;
}
.episodeThumb::after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(0,0,0,0.05), rgba(0,0,0,0.35));
}
.episodeThumbTag{
  position:absolute;
  left: 12px; top: 12px;
  font-size: 11px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(0,0,0,0.30);
  border: 1px solid rgba(255,255,255,0.10);
}
.episodeMeta{
  padding: 12px 0;
  min-width:0;
}
.episodeTitle{
  font-weight: 900;
  letter-spacing: 0.15px;
  margin-top: 2px;
}
.episodeDesc{
  margin-top: 6px;
  font-size: 12px;
  color: rgba(195,206,224,0.70);
  line-height: 1.55;
  display:-webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow:hidden;
}
.episodeAction{
  padding: 12px 12px 12px 0;
  display:flex;
  align-items:center;
}
.playPill{
  border:none;
  cursor:pointer;
  border-radius: 999px;
  padding: 10px 12px;
  background: rgba(180,92,255,0.20);
  border: 1px solid rgba(180,92,255,0.22);
  color: rgba(255,255,255,0.94);
  font-weight: 900;
  transition: transform .18s ease, box-shadow .18s ease;
}
.playPill:hover{
  transform: translateY(-1px);
  box-shadow: 0 18px 55px rgba(106,0,255,0.18);
}

/* ===== Player ===== */
.player{
  display:grid;
  grid-template-columns: 1fr 360px;
  gap: 14px;
  align-items:start;
}
.playerMain{
  border-radius: var(--radius-xl);
  overflow:hidden;
  position:relative;
}
.playerTop{
  padding: 16px;
}
.playerTitle{
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: -0.4px;
}
.playerSub{
  margin-top: 6px;
  color: rgba(195,206,224,0.72);
}
.playerStage{
  margin-top: 12px;
  border-radius: var(--radius-xl);
  overflow:hidden;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.22);
}

/* Simulated video stage */
.stageVideo{
  aspect-ratio: 16 / 9;
  position:relative;
  overflow:hidden;
  background: linear-gradient(135deg, rgba(139,92,255,0.30), rgba(106,0,255,0.12), rgba(41,66,255,0.18));
}
.stageVideo::before{
  content:"";
  position:absolute; inset:-40%;
  background: conic-gradient(from 260deg, rgba(180,92,255,0.55), rgba(41,66,255,0.25), rgba(106,0,255,0.45), rgba(180,92,255,0.55));
  opacity: 0.75;
  animation: spin 12s linear infinite;
}
.stageVideo::after{
  content:"";
  position:absolute; inset:0;
  background: radial-gradient(500px 260px at 20% 20%, rgba(255,255,255,0.10), transparent 60%),
              linear-gradient(180deg, rgba(0,0,0,0.08), rgba(0,0,0,0.55));
}
.stageOverlay{
  position:absolute; inset:0;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  padding: 16px;
  gap: 12px;
}
.stageChip{
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.10);
  font-size: 12px;
}
.bigPlay{
  width: 64px; height: 64px;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(180,92,255,0.22);
  display:grid;
  place-items:center;
  font-size: 22px;
  box-shadow: 0 20px 70px rgba(106,0,255,0.18);
}

.stageAudio{
  padding: 16px;
  display:grid;
  grid-template-columns: 140px 1fr;
  gap: 14px;
  align-items:center;
}
.audioArt{
  border-radius: 18px;
  aspect-ratio: 1 / 1;
  border: 1px solid rgba(255,255,255,0.10);
  background: linear-gradient(135deg, rgba(180,92,255,0.18), rgba(106,0,255,0.10), rgba(41,66,255,0.12));
  position:relative;
  overflow:hidden;
}
.audioArt::before{
  content:"";
  position:absolute; inset:-40%;
  background: conic-gradient(from 210deg, rgba(180,92,255,0.60), rgba(41,66,255,0.25), rgba(106,0,255,0.50), rgba(180,92,255,0.60));
  opacity: 0.75;
  animation: spin 10s linear infinite;
}
.audioPanel{
  min-width:0;
}
.audioTitle{
  font-weight: 900;
  letter-spacing: 0.2px;
  font-size: 18px;
}
.audioAuthor{
  margin-top: 6px;
  color: rgba(195,206,224,0.70);
}
.controls{
  margin-top: 12px;
  display:flex;
  flex-direction:column;
  gap: 10px;
}
.ctrlRow{
  display:flex;
  gap: 10px;
  align-items:center;
}
.ctrlBtn{
  width: 44px; height: 44px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.92);
  cursor:pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.ctrlBtn:hover{
  transform: translateY(-1px);
  background: rgba(180,92,255,0.12);
  border-color: rgba(180,92,255,0.22);
  box-shadow: 0 18px 55px rgba(106,0,255,0.14);
}
.ctrlBtnPrimary{
  background: linear-gradient(135deg, rgba(139,92,255,0.95), rgba(106,0,255,0.85), rgba(41,66,255,0.75));
  border-color: rgba(180,92,255,0.35);
  box-shadow: 0 18px 55px rgba(106,0,255,0.20);
}
.ctrlBtnPrimary:hover{ box-shadow: 0 22px 70px rgba(106,0,255,0.28); }

.progressWrap{
  display:flex;
  gap: 10px;
  align-items:center;
}
.progressBar{
  flex:1;
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  overflow:hidden;
  position:relative;
}
.progressFill{
  height:100%;
  width: 0%;
  background: linear-gradient(90deg, rgba(180,92,255,0.75), rgba(106,0,255,0.95), rgba(41,66,255,0.75));
  border-radius: 999px;
  transition: width .25s ease;
}
.progressGlow{
  position:absolute; inset:-6px -10px -6px -10px;
  background: radial-gradient(160px 24px at 40% 50%, rgba(180,92,255,0.20), transparent 60%);
  pointer-events:none;
  mix-blend-mode: screen;
}
.time{
  font-size: 12px;
  color: rgba(195,206,224,0.70);
  width: 52px;
  text-align:center;
}
.speedRow{
  display:flex;
  gap: 8px;
  flex-wrap:wrap;
}
.speedBtn{
  border:none;
  cursor:pointer;
  padding: 8px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.88);
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.speedBtn:hover{
  transform: translateY(-1px);
  background: rgba(180,92,255,0.12);
  border-color: rgba(180,92,255,0.22);
}
.speedBtn.isActive{
  background: rgba(180,92,255,0.20);
  border-color: rgba(180,92,255,0.24);
}

.stageReading{
  padding: 16px;
}
.readerFrame{
  border-radius: var(--radius-xl);
  overflow:hidden;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.18);
  display:grid;
  grid-template-columns: 260px 1fr;
  gap: 0;
}
.readerCover{
  padding: 14px;
  border-right: 1px solid rgba(255,255,255,0.08);
}
.readerCover .cover{ border-radius: 18px; overflow:hidden; border: 1px solid rgba(255,255,255,0.10); }
.readerPages{
  padding: 18px;
}
.pageLine{
  height: 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  margin: 10px 0;
  width: 100%;
}
.pageLine.s{ width: 68%; }
.pageLine.m{ width: 82%; }
.pageLine.l{ width: 92%; }

/* Player side panel */
.playerSide{
  border-radius: var(--radius-xl);
  padding: 16px;
}
.sideTitle{
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.2px;
}
.queue{
  margin-top: 12px;
  display:flex;
  flex-direction:column;
  gap: 10px;
}
.queueItem{
  border-radius: var(--radius-lg);
  padding: 10px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.18);
  cursor:pointer;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
  display:flex;
  gap: 10px;
  align-items:center;
}
.queueItem:hover{
  transform: translateY(-1px);
  border-color: rgba(180,92,255,0.22);
  box-shadow: 0 18px 55px rgba(106,0,255,0.12);
}
.queueThumb{
  width: 74px;
  aspect-ratio: 16 / 9;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.10);
  background: linear-gradient(135deg, rgba(139,92,255,0.28), rgba(106,0,255,0.10), rgba(41,66,255,0.12));
  position:relative;
  overflow:hidden;
}
.queueThumb::before{
  content:"";
  position:absolute; inset:-40%;
  background: conic-gradient(from 240deg, rgba(180,92,255,0.55), rgba(41,66,255,0.25), rgba(106,0,255,0.45), rgba(180,92,255,0.55));
  opacity: 0.70;
  animation: spin 10s linear infinite;
}
.queueMeta{ min-width:0; }
.queueTitle{
  font-weight: 900;
  font-size: 13px;
  white-space: nowrap;
  overflow:hidden;
  text-overflow: ellipsis;
}
.queueSub{
  margin-top: 4px;
  color: rgba(195,206,224,0.70);
  font-size: 12px;
  white-space: nowrap;
  overflow:hidden;
  text-overflow: ellipsis;
}
.queueItem.isActive{
  background: rgba(180,92,255,0.14);
  border-color: rgba(180,92,255,0.24);
}

/* ===== Dock ===== */
.dock{
  position: fixed;
  left: 18px;
  right: 18px;
  bottom: 18px;
  height: 86px;
  border-radius: var(--radius-xl);
  padding: 12px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  z-index: 3;
}
.dockLeft{
  display:flex;
  align-items:center;
  gap: 12px;
  min-width: 280px;
}
.dockCover{
  width: 56px;
  aspect-ratio: 1 / 1;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.10);
  background: linear-gradient(135deg, rgba(180,92,255,0.18), rgba(106,0,255,0.10), rgba(41,66,255,0.12));
  position:relative;
  overflow:hidden;
}
.dockCover::before{
  content:"";
  position:absolute; inset:-40%;
  background: conic-gradient(from 200deg, rgba(180,92,255,0.6), rgba(41,66,255,0.28), rgba(106,0,255,0.55), rgba(180,92,255,0.6));
  opacity: 0.75;
  animation: spin 12s linear infinite;
}
.dockMeta{ min-width:0; }
.dockTitle{
  font-weight: 900;
  letter-spacing: 0.1px;
  white-space: nowrap;
  overflow:hidden;
  text-overflow: ellipsis;
}
.dockSub{
  margin-top: 4px;
  font-size: 12px;
  color: rgba(195,206,224,0.70);
  white-space: nowrap;
  overflow:hidden;
  text-overflow: ellipsis;
}

.dockMid{
  display:flex;
  align-items:center;
  gap: 12px;
  flex: 1;
  justify-content:center;
}
.dockBtn{
  width: 44px; height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.92);
  cursor:pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.dockBtn:hover{
  transform: translateY(-1px);
  background: rgba(180,92,255,0.12);
  border-color: rgba(180,92,255,0.22);
  box-shadow: 0 18px 55px rgba(106,0,255,0.14);
}
.dockBtnPrimary{
  background: linear-gradient(135deg, rgba(139,92,255,0.95), rgba(106,0,255,0.85), rgba(41,66,255,0.75));
  border-color: rgba(180,92,255,0.35);
  box-shadow: 0 18px 55px rgba(106,0,255,0.22);
}
.dockBtnPrimary:hover{ box-shadow: 0 22px 70px rgba(106,0,255,0.28); }

.dockProgress{
  display:flex;
  align-items:center;
  gap: 10px;
  min-width: 520px;
}
.dockTime{
  font-size: 12px;
  color: rgba(195,206,224,0.70);
  width: 46px;
  text-align:center;
}
.dockRight{
  display:flex;
  align-items:center;
  gap: 10px;
}
.speedPills{
  display:flex;
  gap: 6px;
  align-items:center;
}
.pill{
  border:none;
  cursor:pointer;
  border-radius: 999px;
  padding: 8px 10px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.86);
  font-size: 12px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.pill:hover{
  transform: translateY(-1px);
  background: rgba(180,92,255,0.12);
  border-color: rgba(180,92,255,0.22);
}
.pill.isActive{
  background: rgba(180,92,255,0.20);
  border-color: rgba(180,92,255,0.24);
}

/* ===== Toast ===== */
.toastHost{
  position: fixed;
  right: 18px;
  bottom: 120px;
  z-index: 5;
  display:flex;
  flex-direction:column;
  gap: 10px;
  pointer-events:none;
}
.toast{
  pointer-events:none;
  min-width: 260px;
  max-width: 420px;
  border-radius: 18px;
  padding: 12px 12px;
  background: rgba(15,15,26,0.70);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(18px);
  box-shadow: 0 24px 80px rgba(0,0,0,0.55), 0 18px 60px rgba(106,0,255,0.14);
  animation: toastIn .22s ease both;
}
@keyframes toastIn{
  from{ opacity:0; transform: translateY(10px); filter: blur(6px); }
  to{ opacity:1; transform: translateY(0px); filter: blur(0px); }
}
.toastTitle{
  font-weight: 900;
  letter-spacing: 0.2px;
}
.toastSub{
  margin-top: 6px;
  color: rgba(195,206,224,0.72);
  font-size: 12px;
  line-height: 1.45;
}

/* ===== Responsive ===== */
@media (max-width: 1200px){
  .grid{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .dockProgress{ min-width: 420px; }
  .searchWrap{ min-width: 260px; }
}
@media (max-width: 980px){
  .appShell{ grid-template-columns: 1fr; padding: 14px; }
  .sidebar{
    position: relative;
    height: auto;
    display:grid;
    grid-template-columns: 1fr;
  }
  .nav{ flex-direction: row; flex-wrap: wrap; }
  .dock{
    left: 14px; right: 14px; bottom: 14px;
    height: auto;
    flex-direction: column;
    align-items:stretch;
    gap: 10px;
  }
  .dockMid{ justify-content: space-between; }
  .dockProgress{ min-width: 0; width: 100%; }
  .player{ grid-template-columns: 1fr; }
  .detailTop{ grid-template-columns: 1fr; }
  .grid{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero{ grid-template-columns: 1fr; }
}
@media (max-width: 620px){
  .grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .searchWrap{ min-width: 0; width: 100%; }
  .topbar{ flex-direction:column; align-items:stretch; }
  .topRight{ justify-content:space-between; }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce){
  *{ animation: none !important; transition: none !important; }
}