:root{ --sky:#4BA3C7; --green:#0F766E; --exec:#0A426A; --line: rgba(15,23,42,0.10); --text:#0f172a; --muted:#64748b; }

body{ font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial; }

.shell{
  background:
    radial-gradient(1000px 600px at 90% 20%, rgba(75,163,199,0.30), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,0.92), rgba(234,244,251,1));
  background-attachment: fixed;
}

.ribbon{
  background: rgba(255,255,255,0.62) !important;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 4px solid var(--sky) !important;
  border-bottom: 1px solid var(--line) !important;
  box-shadow: 0 14px 30px rgba(15,23,42,0.08) !important;
}

.sidebar{
  background: linear-gradient(180deg, rgba(10,66,106,0.95), rgba(7,38,71,0.95));
  border-right: 1px solid rgba(255,255,255,0.4) !important;
  box-shadow:
    0 18px 40px rgba(15,23,42,0.18),
    inset 0 -40px 60px rgba(15,118,189,0.2);
  position:relative;
  overflow:hidden;
}
.sidebar::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 25% 20%, rgba(255,255,255,0.9), transparent 40%),
    radial-gradient(circle at 60% 10%, rgba(255,255,255,0.7), transparent 35%),
    linear-gradient(180deg, rgba(75,163,199,0.35), rgba(66,150,180,0.9));
  opacity:0.7;
  filter:blur(1px);
  pointer-events:none;
  z-index:0;
}
.sidebar > *{
  position:relative;
  z-index:1;
}

.sidebar-section{ color: rgba(15,23,42,0.55) !important; }

.sidebar-link{
  background: rgba(255,255,255,0.60) !important;
  border: 1px solid rgba(15,23,42,0.10) !important;
  color: var(--text) !important;
}

.sidebar-nav{
  display:flex;
  flex-direction:column;
  gap:10px;
}

.sidebar-link{
  padding:10px 12px !important;
  border-radius:14px !important;
  font-size:13px !important;
  font-weight:600 !important;
  letter-spacing:0.02em;
  text-transform: uppercase;
  text-indent:0;
  justify-content:flex-start;
  transition:transform 200ms ease, box-shadow 200ms ease;
  border-color: rgba(15,23,42,0.15) !important;
  align-items:center;
}

.sidebar-link .sidebar-label{
  flex:1 1 auto;
  overflow:hidden;
  text-overflow:ellipsis;
}

.sidebar-link:hover{
  transform:translateY(-1px);
  box-shadow:0 18px 35px rgba(15,23,42,0.12);
  background: rgba(255,255,255,0.80) !important;
  border-color: rgba(75,163,199,0.25) !important;
}

.sidebar-link.is-active{
  background: rgba(255,255,255,0.90) !important;
  border-color: rgba(75,163,199,0.35) !important;
}

.sidebar-link.is-active::before{ background: var(--sky) !important; }

.sidebar-icon{ stroke: rgba(15,23,42,0.65) !important; }

.workspace-card{
  background: rgba(255,255,255,0.78) !important;
  border: 1px solid rgba(15,23,42,0.10) !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 22px 55px rgba(15,23,42,0.10) !important;
}

.sidebar-link .sidebar-icon{
  width: 26px;
  height: 26px;
  padding: 3px;
  border-radius: 11px;
  background: linear-gradient(145deg, rgba(75,163,199,0.18), rgba(255,255,255,0.7));
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.9),
    0 10px 24px rgba(15,23,42,0.08);
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
  flex: 0 0 auto;
  color: var(--sky);
}
.sidebar .panel,
.start-panel{
  background: rgba(255,255,255,0.85);
  box-shadow: 0 20px 35px rgba(15,23,42,0.15);
  border-radius: 18px;
  padding: 12px 14px;
  border: 1px solid rgba(255,255,255,0.5);
}
.sidebar-link:hover .sidebar-icon,
.sidebar-link.is-active .sidebar-icon{
  background: linear-gradient(145deg, rgba(75,163,199,0.35), rgba(255,255,255,0.85));
  box-shadow:
    inset 0 0 0 1px rgba(75,163,199,0.45),
    0 16px 35px rgba(15,23,42,0.1);
  transform: translateY(-2px);
}
.sidebar-link .sidebar-icon path,
.sidebar-link .sidebar-icon circle,
.sidebar-link .sidebar-icon rect{
  stroke: var(--sky) !important;
  fill: none !important;
}