:root {
  --canvas: #f4f6f8; --surface: #ffffff; --surface-2: #e9eef3; --border: #d7e0e8; --border-strong: #aab9c8;
  --ink: #142235; --muted: #526477; --accent: #1457a6; --accent-hover: #104784; --accent-ink: #ffffff;
  --accent-text: #1457a6; --accent-strong: #104784; --accent-soft: #e1edf9; --accent-border: #a9c7e7;
  --success: #16794b; --success-ink: #ffffff; --success-soft: #e1f3e9; --success-strong: #12613c;
  --warning: #9a5a0a; --warning-ink: #ffffff; --warning-soft: #fff1d9; --warning-strong: #7c4706;
  --danger: #b32632; --danger-ink: #ffffff; --danger-soft: #fae7e8; --danger-strong: #99202a;
  --chart-1: #1457a6; --chart-2: #16794b; --chart-3: #9a5a0a; --chart-4: #7654a5; --chart-5: #b32632; --chart-6: #347d88;
  --font-display: "Manrope", ui-sans-serif, system-ui, sans-serif; --font-body: "Inter", ui-sans-serif, system-ui, sans-serif; --font-sans: "Inter", ui-sans-serif, system-ui, sans-serif; --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --display-weight: 750; --display-tracking: -0.035em; --eyebrow-tracking: 0.09em;
  --radius-btn: 0.7rem; --radius-card: 1rem; --radius-input: 0.7rem; --border-w: 1px; --border-strong-w: 1px; --card-pad: 1.25rem;
  --shadow-card: 0 4px 18px rgba(20,34,53,.06); --shadow-raised: 0 16px 40px rgba(20,34,53,.12); --shadow-btn: 0 2px 5px rgba(20,34,53,.12);
}
html[data-theme="dark"] {
  --canvas: #0d1724; --surface: #142235; --surface-2: #1b2d42; --border: #2b4057; --border-strong: #486078;
  --ink: #edf4fb; --muted: #b3c3d3; --accent: #79b8ff; --accent-hover: #9acaff; --accent-ink: #102238;
  --accent-text: #9acaff; --accent-strong: #d6eaff; --accent-soft: #203b58; --accent-border: #3c5d7e;
  --success: #52bd88; --success-ink: #102b1d; --success-soft: #193c2b; --success-strong: #8bd9ae;
  --warning: #e5aa55; --warning-ink: #30200c; --warning-soft: #3a2b19; --warning-strong: #f1c27e;
  --danger: #f08088; --danger-ink: #321216; --danger-soft: #402127; --danger-strong: #ffabb1;
  --chart-1: #79b8ff; --chart-2: #52bd88; --chart-3: #e5aa55; --chart-4: #b99be8; --chart-5: #f08088; --chart-6: #69c3ce;
}

.app-shell{display:grid;grid-template-columns:248px minmax(0,1fr);min-height:100vh;background:var(--canvas)}
.sidebar{position:sticky;top:0;height:100vh;background:var(--surface);border-right:1px solid var(--border);padding:1.4rem 1rem;display:flex;flex-direction:column;gap:1.5rem}
.brand{display:flex;align-items:center;gap:.7rem;font-weight:800;letter-spacing:-.03em;font-size:1.05rem;padding:.35rem .5rem;color:var(--ink)}
.brand .icon{color:var(--accent-text);width:1.35rem;height:1.35rem}.brand-light{font-weight:500;color:var(--muted);font-size:.78rem;letter-spacing:.04em}
.workspace-label,.eyebrow{font-size:.67rem;font-weight:800;letter-spacing:.13em;color:var(--muted)}
.workspace-label{padding:0 .65rem;margin-bottom:-1rem}
.side-nav{display:grid;gap:.25rem}.nav-item{display:flex;align-items:center;gap:.75rem;padding:.72rem .8rem;border-radius:.7rem;color:var(--muted);font-size:.88rem;font-weight:600}.nav-item:hover,.nav-item.active{background:var(--accent-soft);color:var(--accent-strong);text-decoration:none}.nav-item .icon{width:1.05rem;height:1.05rem}
.sidebar-foot{margin-top:auto;border-top:1px solid var(--border);padding:.9rem .3rem .2rem;display:flex;align-items:center;gap:.65rem}.sidebar-foot form{margin-left:auto}
.main-area{min-width:0}.topbar{height:82px;border-bottom:1px solid var(--border);background:var(--surface);display:flex;align-items:center;justify-content:space-between;padding:0 clamp(1rem,3vw,2.6rem)}.topbar-title{font-weight:750;font-size:1.05rem;margin-top:.15rem}
.page-content{max-width:1440px;margin:0 auto;padding:2rem clamp(1rem,3vw,2.6rem) 4rem}.welcome-row{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;margin-bottom:1.5rem}.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;margin-bottom:2rem}.metric-card,.stream-card,.content-panel,.task-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow-card)}
.metric-card{padding:1.1rem 1.2rem;display:grid;gap:.45rem}.metric-card span{font-size:.77rem;color:var(--muted);font-weight:650}.metric-card strong{font-family:var(--font-display);font-size:2rem;letter-spacing:-.06em;line-height:1.1}.metric-card small{font-size:.72rem;color:var(--muted)}
.section-heading{display:flex;justify-content:space-between;align-items:end;margin:1.8rem 0 .9rem}.section-heading h2,.panel-head h2{font-size:1rem;font-weight:750;letter-spacing:-.02em}.section-heading p,.panel-head p{font-size:.75rem;color:var(--muted);margin-top:.2rem}
.stream-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.stream-card{padding:1.2rem;display:block;color:var(--ink);transition:transform .18s,border-color .18s}.stream-card:hover{transform:translateY(-2px);border-color:var(--accent-border);text-decoration:none}.stream-card h3{font-weight:750;margin-top:1rem;letter-spacing:-.02em}.stream-card p{font-size:.78rem;color:var(--muted);line-height:1.55;margin-top:.4rem;min-height:3.7rem}
.content-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:1rem;margin-top:1.3rem}.content-panel{padding:1.2rem;min-width:0}.panel-head{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border);margin-bottom:.5rem}
.task-list{display:grid}.task-row{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 0;border-bottom:1px solid var(--border)}.task-row:last-child{border-bottom:0}.code-tag{font:700 .7rem var(--font-mono);color:var(--accent-text);background:var(--accent-soft);padding:.25rem .42rem;border-radius:.35rem;white-space:nowrap}
.activity-list{display:grid;gap:1rem;padding-top:.8rem}.activity-list.spacious{gap:0}.activity-item{display:grid;grid-template-columns:10px minmax(0,1fr);gap:.8rem;padding:.3rem 0 1rem}.spacious .activity-item{padding:1rem .2rem;border-bottom:1px solid var(--border)}.activity-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:.4rem;box-shadow:0 0 0 4px var(--accent-soft)}
.task-board{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.task-card{padding:1.15rem;scroll-margin-top:1rem}.task-details{border-top:1px solid var(--border);padding-top:.8rem}.task-details summary{font-size:.8rem;font-weight:700;cursor:pointer;display:flex;justify-content:space-between}.task-details summary span{color:var(--muted);font-weight:500}.task-details ul{padding-left:1.2rem;margin-top:.8rem;display:grid;gap:.55rem;list-style:disc}.task-details li{font-size:.78rem;color:var(--muted);line-height:1.45}
.assign-form{display:flex;gap:.45rem;min-width:0}.assign-form select{max-width:245px;font-size:.75rem;padding:.5rem}.update-form{border-top:1px solid var(--border);padding-top:1rem}.filter-row{display:flex;gap:.5rem;overflow-x:auto;padding:.2rem 0 1rem;margin-bottom:.5rem}.access-rule{padding:.8rem 0;border-bottom:1px solid var(--border)}.access-rule strong{font-size:.85rem}.access-rule p{font-size:.78rem;color:var(--muted);margin-top:.25rem;line-height:1.5}
.login-shell{min-height:100vh;display:grid;grid-template-columns:minmax(0,1fr) minmax(340px,.85fr);max-width:1240px;margin:auto;padding:clamp(1rem,4vw,3rem);align-items:center;gap:clamp(2rem,6vw,5rem)}.login-panel{max-width:510px;margin:auto;width:100%;padding:1.5rem 0}.brand-mark{display:grid;place-items:center;width:3rem;height:3rem;border-radius:.9rem;background:var(--accent);color:var(--accent-ink);margin-bottom:2rem}.brand-mark .icon{width:1.35rem;height:1.35rem}.login-aside{background:var(--accent);color:var(--accent-ink);border-radius:1.4rem;padding:clamp(2rem,5vw,3.5rem);min-height:440px;display:flex;flex-direction:column;justify-content:flex-end}.aside-title{font-family:var(--font-display);font-size:clamp(2rem,4vw,3.4rem);font-weight:800;letter-spacing:-.05em;line-height:1.05;margin-top:auto}.aside-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;border-top:1px solid color-mix(in srgb,var(--accent-ink) 30%,transparent);border-bottom:1px solid color-mix(in srgb,var(--accent-ink) 30%,transparent);padding:1.4rem 0;margin:2rem 0}.aside-grid strong{display:block;font-size:1.7rem;font-family:var(--font-display)}.aside-grid span{font-size:.68rem;opacity:.75}.login-aside>p{font-size:.85rem;opacity:.8;line-height:1.5}
@media(max-width:1050px){.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stream-grid{grid-template-columns:1fr}.stream-card p{min-height:0}.task-board{grid-template-columns:1fr}}
@media(max-width:760px){.app-shell{grid-template-columns:1fr}.sidebar{position:relative;height:auto;padding:.75rem 1rem;gap:.7rem;border-right:0;border-bottom:1px solid var(--border)}.sidebar .workspace-label{display:none}.side-nav{display:flex;overflow-x:auto;gap:.35rem}.nav-item{white-space:nowrap;padding:.55rem .7rem}.sidebar-foot{display:none}.topbar{height:68px}.page-content{padding-top:1.3rem}.content-grid{grid-template-columns:1fr}.login-shell{grid-template-columns:1fr;align-items:start;padding:1rem}.login-panel{padding:1.2rem 0}.login-aside{min-height:280px}.welcome-row{align-items:flex-start;flex-direction:column}.assign-form{width:100%}.assign-form select{max-width:none;flex:1;min-width:0}}
@media(max-width:430px){.metric-grid{gap:.55rem}.metric-card{padding:.85rem}.metric-card strong{font-size:1.65rem}.metric-card small{font-size:.66rem}.task-card{padding:.9rem}.login-aside{padding:1.5rem}.aside-grid{gap:.5rem}.aside-grid strong{font-size:1.4rem}}