:root{--color-base: #f7f6f2;--color-surface: #ffffff;--color-ink: #1c1c1e;--color-ink-secondary: #6b6b72;--color-accent: #2563eb;--color-accent-light: #eff6ff;--color-success: #16a34a;--color-success-soft: #f0fdf4;--color-border: #e4e4e7;--color-warn: #c2410c;--shadow: 0 1px 3px rgba(0, 0, 0, .08);--sidebar: 240px;font-family:Inter,system-ui,sans-serif;color:var(--color-ink);background:var(--color-base)}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{background:var(--color-base);font-size:16px;line-height:1.65}button,input,textarea{font:inherit}a{color:var(--color-accent)}.app-shell{display:flex;min-height:100vh}.sidebar{width:var(--sidebar);flex:0 0 var(--sidebar);background:var(--color-surface);border-right:1px solid var(--color-border);padding:20px 12px 32px;position:sticky;top:0;height:100vh;overflow:auto}.brand-kicker{font-size:11px;letter-spacing:.08em;color:var(--color-accent);font-weight:700;margin:0 8px}.brand-title{font-size:18px;font-weight:700;line-height:1.25;margin:4px 8px 0}.brand-season{font-size:13px;color:var(--color-ink-secondary);margin:0 8px 16px}.nav-link,.nav-module,.nav-unit{display:flex;align-items:center;gap:8px;width:100%;text-align:left;border:0;background:transparent;color:var(--color-ink);border-radius:6px;padding:8px 10px;cursor:pointer;text-decoration:none;font-size:14px}.nav-link.active,.nav-unit.active{background:var(--color-accent-light);color:var(--color-accent);font-weight:600}.nav-unit.done{color:var(--color-success)}.nav-unit.locked{color:#a1a1aa;cursor:not-allowed}.nav-section{font-size:11px;letter-spacing:.08em;color:var(--color-ink-secondary);margin:18px 10px 6px;font-weight:600}.badge{margin-left:auto;background:#ffedd5;color:var(--color-warn);font-size:11px;border-radius:999px;padding:1px 8px;font-weight:600}.role-admin,.role-user{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.04em;border-radius:999px;padding:2px 8px;margin-left:8px;vertical-align:middle}.role-admin{background:#ede9fe;color:#5b21b6}.role-user{background:var(--color-success-soft);color:var(--color-success)}.nav-section.admin{color:#5b21b6}.main{flex:1;min-width:0;padding:20px 28px 48px}.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px}.topbar-end{display:flex;align-items:center;justify-content:flex-end;gap:12px;margin-left:auto;min-width:0}.view-switch{display:inline-flex;align-items:center;flex:0 0 auto;background:#f4f4f5;border:1px solid var(--color-border);border-radius:999px;padding:3px}.view-switch button{border:0;background:transparent;color:var(--color-ink-secondary);border-radius:999px;padding:6px 12px;font-size:13px;font-weight:600;cursor:pointer}.view-switch button[aria-pressed=true]{background:#fff;color:var(--color-ink);box-shadow:var(--shadow)}.crumbs{font-size:13px;color:var(--color-ink-secondary)}.crumbs a{color:inherit;text-decoration:none}.who{display:flex;align-items:center;gap:8px;font-size:14px;min-width:0}.who-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:180px}.meeting-link{display:grid;place-items:center;width:36px;height:36px;border-radius:8px;color:var(--color-accent);background:var(--color-accent-light);text-decoration:none}.meeting-link:hover,.meeting-link.active{background:var(--color-accent);color:#fff}.meeting-frame{width:100%;height:700px;margin-top:16px;border:0;border-radius:8px;background:#0f172a}.host-card p+p{margin-top:6px}.host-url{margin-top:12px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}.host-actions{display:flex;flex-wrap:wrap;gap:8px}.avatar{width:32px;height:32px;border-radius:50%;background:var(--color-accent-light);color:var(--color-accent);display:grid;place-items:center;font-size:12px;font-weight:700}.menu-btn{display:none}.sidebar-toggle{display:flex;align-items:center;justify-content:flex-start;width:100%;margin:0 0 12px;border:0;background:transparent;color:var(--color-ink-secondary);border-radius:6px;padding:8px 10px;cursor:pointer;font-size:13px;font-weight:600}.sidebar-toggle:hover{background:var(--color-accent-light);color:var(--color-accent)}.app-shell.nav-collapsed .sidebar{width:52px;flex-basis:52px;padding:12px 6px;overflow:hidden}.app-shell.nav-collapsed .sidebar-body{display:none}.app-shell.nav-collapsed .sidebar-toggle{justify-content:center;margin:0;padding:10px 0;font-size:22px;color:var(--color-accent);background:var(--color-accent-light)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:8px;box-shadow:var(--shadow);padding:24px;margin-top:16px}.course-card{display:flex;flex-direction:column;gap:12px}.course-card>*{margin:0}.course-desc{line-height:1.55}.course-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:8px;padding-top:16px;border-top:1px solid var(--color-border)}h1{font-size:28px;line-height:1.25;margin:8px 0}h2{font-size:22px;line-height:1.3;margin:0}h3{font-size:18px;line-height:1.4;margin:0}.meta{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:8px}.pill{font-size:13px;background:#f4f4f5;border-radius:999px;padding:2px 10px;color:var(--color-ink-secondary)}.pill.soft{background:#ede9fe;color:#5b21b6}.dot{width:8px;height:8px;border-radius:50%;background:var(--color-success);display:inline-block}.objective{border-left:3px solid 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var(--color-border);background:#fff;color:var(--color-ink);border-radius:6px;padding:10px;margin-bottom:8px}.light-field{background:#fff;color:var(--color-ink);border-color:var(--color-border)}.scale{display:flex;gap:8px;flex-wrap:wrap}.scale button[aria-pressed=true]{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}.comment-box{display:flex;gap:8px;align-items:center}.toast{position:fixed;right:16px;bottom:16px;background:var(--color-ink);color:#fff;padding:10px 14px;border-radius:8px;font-size:14px;pointer-events:none}.progress-track{height:8px;background:#e4e4e7;border-radius:99px;overflow:hidden;flex:1}.progress-track span{display:block;height:100%;background:var(--color-success)}.footer-nav{display:flex;justify-content:space-between;align-items:center;margin-top:16px;gap:12px}.banner{background:var(--color-success-soft);color:var(--color-success);border-radius:8px;padding:10px 12px;margin-top:12px}.overlay{display:none}.login-screen{min-height:100vh;display:grid;place-items:center;padding:32px 16px;background:radial-gradient(900px 420px at 12% -8%,rgba(80,144,64,.2),transparent 62%),radial-gradient(720px 420px at 100% 0%,rgba(0,64,80,.16),transparent 58%),linear-gradient(180deg,#f4f8f5,#e6eef0)}.login-card{width:min(420px,100%);background:#fff;border:1px solid rgba(0,64,80,.1);border-radius:16px;padding:36px 32px 28px;box-shadow:0 18px 48px #0030401f}.login-logo{display:block;width:100%;height:auto;margin:0 auto 12px}.login-card h1{margin:0;text-align:center;font-size:22px;color:#004050}.login-card .muted{text-align:center;margin:6px 0 20px}.login-card label{display:flex;flex-direction:column;gap:6px;margin-bottom:12px;font-size:13px;font-weight:600;color:#004050}.login-card input.light-field{margin-bottom:0;border-color:#d5e2e4}.login-card input.light-field:focus{outline:2px solid 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