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rgba(34,197,94,.25)}.sd2-chip.warn{color:#92400e;background:var(--ds-warn-soft);border:1px solid rgba(245,158,11,.25)}.sd2-bottom-row{grid-template-columns:repeat(4,minmax(0,1fr))}.sd2-mini-card{padding:20px;transition:box-shadow .2s}.sd2-mini-card:hover{box-shadow:0 4px 16px rgba(15,23,42,.1)}.sd2-mini-card h4{font-size:15px;font-weight:700;letter-spacing:-.01em;color:var(--ds-text-main)}.sd2-mini-card p{margin-top:6px;font-size:12.5px;line-height:1.5;color:var(--ds-text-secondary)}.sd2-right{display:flex;flex-direction:column;gap:12px}.sd2-shell--tutor .sd2-left,.sd2-shell--tutor .sd2-right{height:100%;overflow-y:auto}.sd2-shell--tutor 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small{font-size:11.5px;color:var(--ds-text-secondary)}.sd2-sidebar-actions{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;padding:10px 2px 2px;border-top:1px solid hsla(0,0%,100%,.08)}.sd2-settings-anchor>.sd2-sidebar-action-btn,.sd2-sidebar-actions>.sd2-sidebar-action-btn{width:100%;justify-content:center}.sd2-sidebar-action-btn{display:inline-flex;align-items:center;justify-content:center;gap:5px;height:32px;padding:0 11px;border-radius:999px;border:1px solid hsla(0,0%,100%,.18);background:hsla(0,0%,100%,.08);color:hsla(0,0%,100%,.75);font-size:12px;font-weight:600;cursor:pointer;white-space:nowrap;box-shadow:0 1px 3px rgba(0,0,0,.18);transition:background .15s,color .15s,border-color .15s}.sd2-sidebar-action-btn:hover{background:rgba(37,99,235,.22);border-color:rgba(37,99,235,.55);color:#fff}.sd2-lang-btn{gap:3px;padding:0 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#e8eaf4;padding:4px}.sd2-task-icon-wrap{font-size:18px;width:28px;text-align:center;flex-shrink:0;align-self:center}.sd2-deadline.urgent{color:#c94040;background:#ffe6e6}.sd2-tag-desc{margin-top:8px;font-size:11px;line-height:1.45;color:var(--color-text-secondary)}.sd2-mini-card-icon{font-size:28px;margin-bottom:6px}.sd2-mini-card--tutor h4{color:#6b4ef5}.sd2-mini-card--roadmap h4{color:#e06c2e}.sd2-mini-card--exercise h4{color:#1a7ec9}.sd2-mini-card--achieve h4{color:#c9920f}.student-app-shell{min-height:100dvh;background:radial-gradient(circle at 72% 18%,rgba(19,77,139,.1),transparent 26%),linear-gradient(180deg,#f8fbff,#eef5fc)}html[data-theme=dark] .student-app-shell{background:radial-gradient(circle at 72% 18%,rgba(108,166,218,.16),transparent 28%),linear-gradient(180deg,#0a2238,#071b2f)}.student-app-navbar{position:sticky;top:0;z-index:80;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:24px;min-height:68px;padding:10px 24px;border-bottom:1px solid #e2e8f0;background:#fff;box-shadow:0 6px 18px rgba(15,23,42,.05);backdrop-filter:blur(12px)}html[data-theme=dark] .student-app-navbar{border-bottom-color:rgba(148,163,184,.22);background:rgba(18,48,74,.94);box-shadow:0 6px 18px rgba(0,0,0,.18)}.student-app-brand{display:inline-flex;align-items:center;gap:10px;min-width:-moz-max-content;min-width:max-content;flex:0 0 auto;border:0;background:transparent;color:#0c4b8f;font-size:22px;font-weight:800;cursor:pointer}.student-app-brand img{width:42px;height:42px;-o-object-fit:contain;object-fit:contain;padding:4px;border-radius:8px}.student-app-brand span span{color:#c72127}html[data-theme=dark] .student-app-brand{color:#f4f8fc}.student-app-nav-links{display:flex;align-items:stretch;justify-content:center;gap:10px;min-width:0;overflow:hidden}.student-app-nav-link{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;min-width:0;padding:10px 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58%,var(--ds-secondary))}.student-app-streak--rainbow{--streak-flame:var(--ds-primary);--streak-flame-fill:color-mix(in srgb,var(--ds-primary) 18%,transparent);--streak-flame-size:20px;border-color:#e2e8f0;background:#fff;color:var(--ds-primary);box-shadow:none}.student-app-lang{display:inline-flex;align-items:center;gap:8px;padding:0 12px}.student-app-lang span{padding:0 12px}.student-app-lang button{border:0;background:transparent;color:#738197;font:inherit;font-size:13px;font-weight:800;cursor:pointer}.student-app-lang button.is-active{color:#c72127}.student-app-lang span{width:1px;height:20px;background:#d4e0ee}.student-app-icon-btn,.student-app-menu-toggle,.student-app-nav-menu-toggle{display:grid;place-items:center;width:40px;height:40px;padding:0;cursor:pointer}.student-app-icon-btn.has-text{display:inline-flex;width:auto;padding:0 12px;gap:6px}.student-app-menu-toggle{overflow:hidden;border-radius:10px;color:var(--ds-primary)}.student-app-menu-toggle 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14px);right:0;z-index:90;width:260px;padding:14px;border:1px solid #dde6f0;border-radius:8px;background:#fff;box-shadow:0 18px 38px rgba(19,77,139,.16)}.student-app-popover-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;color:#134d8b;font-size:14px;font-weight:800}.student-app-popover-head button{border:0;background:transparent;color:#c72127;font-size:12px;font-weight:800;cursor:pointer}.student-app-dropdown,.student-app-nav-dropdown,.student-app-popover-list{display:grid;gap:8px}.student-app-empty,.student-app-notification-item{padding:10px;border-radius:8px;background:#f2f6f9;color:#5a5a5a;font-size:13px}.student-app-profile-line{display:grid;gap:2px;padding:10px;border-left:4px solid #c72127;background:#f2f6f9}.student-app-profile-line strong{color:#134d8b;font-size:13px}.student-app-profile-line small{color:#818181}.student-app-dropdown button,.student-app-nav-dropdown 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