:root{--portal-card-shadow:0 2px 4.8px #e1c7aa4d;--portal-accent:var(--gold-deep);--portal-chip-bg:color-mix(in oklab, var(--gold-soft) 50%, var(--card));--portal-ink-panel:var(--ink);--portal-onink:oklch(100% 0 0)}.dark{--portal-card-shadow:0 2px 10px #00000059;--portal-accent:var(--gold);--portal-chip-bg:color-mix(in oklab, var(--gold) 18%, var(--card));--portal-ink-panel:oklch(28.5% .01 66);--portal-onink:oklch(98.5% .001 75)}.portal-shell{background:var(--background);min-height:100vh;color:var(--foreground);padding-bottom:84px}.portal-header{z-index:20;background:color-mix(in oklab, var(--card) 92%, transparent);border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);position:sticky;top:0}.portal-header-inner,.portal-main{width:min(100% - 32px,1000px);margin:0 auto}.portal-header-inner{align-items:center;gap:12px;height:74px;display:flex}.brand-lockup{align-items:center;display:flex}.brand-logo{object-fit:contain;width:166px;height:auto;display:block}.brand-logo-dark,.dark .brand-logo-light{display:none}.dark .brand-logo-dark{display:block}.portal-header-actions{align-items:center;gap:10px;margin-left:auto;display:flex;position:relative}.member-menu,.signout-link,.text-button{color:var(--muted-foreground);cursor:pointer;background:0 0;border:0}.member-menu:hover{background:var(--muted);color:var(--foreground)}.member-menu{border-left:1px solid var(--border);text-align:left;align-items:center;gap:8px;padding:4px 0 4px 10px;display:flex}.member-menu svg{width:15px}.member-menu-name{color:var(--foreground);flex-direction:column;font-size:13px;font-weight:600;display:flex}.member-menu-name small{color:var(--muted-foreground);margin-top:2px;font-size:12px;font-weight:400}.avatar{background:var(--gold-soft);color:var(--ink);place-items:center;font-weight:700;display:grid;overflow:hidden}.avatar img{object-fit:cover;width:100%;height:100%}.avatar-small{border-radius:50%;width:34px;height:34px;font-size:12px}.avatar-large{border-radius:24px;width:92px;height:92px;font-size:24px}.portal-main{padding:42px 0 48px}.welcome{justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px;display:flex}.welcome h1{color:var(--portal-accent);font:600 clamp(2rem, 5vw, 3.25rem)/1.05 var(--font-display);letter-spacing:-.03em;margin:6px 0 8px}.eyebrow{color:var(--portal-accent);letter-spacing:.12em;text-transform:uppercase;margin:0;font-size:12px;font-weight:800}.desktop-nav{border-bottom:1px solid var(--border);gap:6px;margin-bottom:24px;display:flex}.desktop-nav button{color:var(--muted-foreground);cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;align-items:center;gap:8px;margin-bottom:-1px;padding:12px 16px;font-weight:600;display:inline-flex}.desktop-nav button svg{width:16px}.desktop-nav button:hover,.desktop-nav button.active{color:var(--foreground);border-bottom-color:var(--portal-accent)}.content-stack{flex-direction:column;gap:18px;display:flex}.home-grid{grid-template-columns:1.15fr .85fr;gap:18px;display:grid}.portal-card{background:var(--card);color:var(--card-foreground);border:1px solid var(--border);box-shadow:var(--portal-card-shadow);border-radius:23px;padding:24px}.section-title{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px;display:flex}.section-title h2{font:600 26px/1.1 var(--font-display);letter-spacing:-.02em;margin:5px 0 0}.section-title>svg,.section-title>div+svg{color:var(--portal-accent);width:22px}.announcement-card h3,.next-class h3{font:600 22px var(--font-display);margin:0 0 8px}.announcement-card p:not(.eyebrow),.next-class 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strong{color:var(--portal-onink)}.class-list,.file-list,.attendance-list,.activity-list{flex-direction:column;gap:8px;display:flex}.class-row{background:var(--muted);border-radius:12px;align-items:center;gap:14px;padding:10px;display:flex}.class-code{background:var(--portal-chip-bg);min-width:54px;height:42px;color:var(--portal-accent);border-radius:10px;place-items:center;font-size:12px;font-weight:800;display:grid}.class-row strong{font-size:14px}.class-row p,.attendance-row small,.activity-row small{color:var(--muted-foreground);margin:4px 0 0;font-size:12px}.file-list a{background:var(--muted);color:var(--foreground);border-radius:12px;justify-content:space-between;align-items:center;gap:12px;padding:13px 14px;text-decoration:none;display:flex}.file-list a:hover{background:var(--portal-chip-bg)}.file-list span{align-items:center;gap:10px;min-width:0;display:flex}.file-list svg{width:17px;color:var(--portal-accent)}.file-list strong{text-overflow:ellipsis;white-space:nowrap;font-size:13px;overflow:hidden}.calendar-card{align-items:center;gap:16px;display:flex}.calendar-icon{background:var(--portal-chip-bg);height:46px;color:var(--portal-accent);border-radius:13px;flex:0 0 46px;place-items:center;display:grid}.calendar-copy{flex:1}.calendar-copy h3{font:600 20px var(--font-display);margin:4px 0}.calendar-copy p:last-child{color:var(--muted-foreground);margin:0;font-size:13px;line-height:1.5}.calendar-actions{flex-direction:column;align-items:end;gap:7px;display:flex}.button{cursor:pointer;border:1px solid #0000;border-radius:55px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:10px 16px;font:500 14px Inter,sans-serif;display:inline-flex}.button svg{width:16px}.button.primary{background:var(--primary);color:var(--primary-foreground)}.button.secondary{background:var(--card);color:var(--foreground);border-color:var(--border)}.button:hover:not(:disabled){filter:brightness(.97);transform:translateY(-1px)}.button:disabled{cursor:not-allowed;opacity:.5}.text-button{font-size:12px;text-decoration:underline}.lesson-list{margin:0;padding:0;list-style:none}.lesson-item+.lesson-item{border-top:1px solid var(--border)}.lesson-row{text-align:left;cursor:pointer;width:100%;color:var(--foreground);background:0 0;border:0;align-items:flex-start;gap:12px;padding:14px 2px;display:flex}.lesson-row:hover:not(:disabled){background:var(--muted)}.lesson-row:disabled{cursor:default}.lesson-check svg{width:19px;color:var(--portal-accent);margin-top:1px}.lesson-number{width:22px;color:var(--muted-foreground);padding-top:3px;font:12px ui-monospace,monospace}.lesson-copy{flex-direction:column;flex:1;gap:5px;min-width:0;display:flex}.lesson-copy 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