@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Plus+Jakarta+Sans:wght@700;800;900&display=swap";:root{--color-bg-primary:#0d1b2e;--color-bg-content:#e8eef6;--color-bg-card:#fff;--color-bg-secondary:#1b263b;--color-bg-surface:#fff;--color-accent:#2196f3;--color-text-primary:#0d1b2e;--color-text-secondary:#5f6b7a;--color-status-progress:#f5c518;--color-status-error:#e84040;--color-status-done:#4caf50;--color-status-not-started:#e84040;--color-status-in-progress:var(--color-status-progress);--color-status-completed:var(--color-status-done);--color-battery-low:#e84040;--color-battery-medium:#f5c518;--color-battery-high:#4caf50;--color-btn-active-bg:#2196f3;--color-btn-inactive-bg:#fff;--color-btn-active-icon:#fff;--color-btn-inactive-icon:#1a1a2e;--color-btn-border:#e0e0e0;--color-text-on-primary:#fff;--sidebar-width:82px;--header-h:58px;--spacing-xs:4px;--spacing-sm:8px;--spacing-md:12px;--spacing-lg:16px;--spacing-xl:24px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-full:9999px;--font-size-sm:12px;--font-size-md:14px;--font-size-lg:18px;--font-size-xl:20px;--font-head:"Plus Jakarta Sans", sans-serif;--font-body:"Inter", sans-serif;--transition-fast:.15s ease;--shadow-card:0 2px 8px #0d1b2e1f;--shadow-modal:0 8px 32px #0000003d}*,:before,:after{box-sizing:border-box;margin:0}body{font-family:var(--font-body);font-size:var(--font-size-md);color:#fff;background:#0d1b2e;flex-direction:column;height:100vh;display:flex;overflow:hidden}#header{height:var(--header-h);z-index:150;background:#0d1b2e;position:fixed;top:0;left:0;right:0}#sidebar{width:var(--sidebar-width);z-index:140;height:100vh;padding:16px 0;padding-top:calc(var(--header-h) + 16px);background:#0d1b2e;border-right:1px solid #ffffff0d;flex-direction:column;align-items:center;display:flex;position:fixed;top:0;left:0}#app{margin-left:var(--sidebar-width);padding-top:var(--header-h);width:calc(100% - var(--sidebar-width));background:var(--color-bg-content);height:100vh;overflow-y:auto}body.route-login #sidebar,body.route-login #header{display:none}body.route-login 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0;border:none;font-size:13px;font-weight:500}.header-bar__logout:hover{color:#fff}.login-view{width:100%;min-height:100vh;padding:var(--spacing-lg);background:#0d1b2e;justify-content:center;align-items:center;display:flex}.login-card{background:#132035;border:1px solid #ffffff14;border-radius:14px;width:100%;max-width:400px;padding:36px;box-shadow:0 8px 32px #0006}.login-logo{flex-direction:column;align-items:center;margin-bottom:24px;display:flex}.login-logo__img{width:auto;height:52px}.login-logo__mark{color:#fff;width:44px;height:44px;font-family:var(--font-head);background:#2196f3;border-radius:10px;place-items:center;font-size:26px;font-weight:900}.login-logo__subtitle{letter-spacing:2px;color:#ffffff73;text-transform:uppercase;margin-top:6px;font-size:10px;font-weight:600}.login-title{font-family:var(--font-head);color:#fff;margin:0 0 20px;font-size:22px;font-weight:800}.login-card input{color:#fff;width:100%;transition:border-color 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#111827!important}#lobby-start-btn{color:#fff;cursor:pointer;font-family:var(--font-head);transition:background-color var(--transition-fast), opacity var(--transition-fast);background:#2196f3;border:none;border-radius:8px;padding:10px 24px;font-size:15px;font-weight:800}#lobby-start-btn:hover:not(:disabled){background:#1976d2}#lobby-start-btn:disabled{opacity:.4;cursor:not-allowed}.session-view{background:#0d1b2e;flex-direction:column;height:100%;display:flex}#session-controls{background:#0d1b2e;border-bottom:1px solid #ffffff14;justify-content:space-between;align-items:center;height:52px;padding:0 24px;display:flex}.session-controls__left{align-items:center;gap:12px;min-width:0;display:flex}.session-controls__label{font-family:var(--font-head);color:#fff;font-size:14px;font-weight:700}.session-ws-status{font-family:var(--font-head);color:#f5c518;font-size:12px;font-weight:600;display:none}.session-ws-status--visible{display:inline}#session-end-btn{color:#fff;font-family:var(--font-head);cursor:pointer;transition:background-color var(--transition-fast), opacity var(--transition-fast);background:#e84040;border:none;border-radius:8px;padding:8px 20px;font-size:13px;font-weight:800}#session-end-btn:hover:not(:disabled){background:#c62828}#session-end-btn:disabled{opacity:.4}#session-main{flex:1;display:flex;overflow:hidden}#session-stream-grid{background:#0d1b2e;flex:1;padding:20px;overflow:auto}#session-message-panel{overflow:auto}#session-right-panel{background:#0a1628;border-left:1px solid #ffffff14;flex-direction:column;flex-shrink:0;width:300px;display:flex;overflow:hidden}#session-right-panel #session-message-panel{border-left:none;flex:1;width:300px;overflow:auto}#session-waiting-panel{border-top:1px solid #ffffff14;flex-shrink:0}.stream-grid{align-content:start;gap:16px;width:100%;display:grid}.stream-grid[data-count="1"]{grid-template-columns:1fr}.stream-grid[data-count="2"],.stream-grid[data-count="3"],.stream-grid[data-count="4"]{grid-template-columns:repeat(2,minmax(0,1fr))}.stream-grid[data-count="5"],.stream-grid[data-count="6"]{grid-template-columns:repeat(3,minmax(0,1fr))}.stream-grid[data-count="7"],.stream-grid[data-count="8"],.stream-grid[data-count="9"],.stream-grid[data-count="10"]{grid-template-columns:repeat(4,minmax(0,1fr))}@media (width<=720px){.stream-grid[data-count="2"],.stream-grid[data-count="3"],.stream-grid[data-count="4"],.stream-grid[data-count="5"],.stream-grid[data-count="6"],.stream-grid[data-count="7"],.stream-grid[data-count="8"],.stream-grid[data-count="9"],.stream-grid[data-count="10"]{grid-template-columns:1fr}}.stream-tile{aspect-ratio:16/9;cursor:default;background:#1a2035;border-radius:12px;position:relative;overflow:hidden}.stream-tile 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#ffffff14;border-radius:10px;margin-bottom:20px;padding:14px}.message-panel__subheading{font-family:var(--font-head);letter-spacing:.04em;text-transform:uppercase;color:#ffffff73;margin-bottom:8px;font-size:11px;font-weight:700;display:block}.message-panel__recipient{margin-bottom:12px}.message-panel__mode{flex-wrap:wrap;gap:12px 20px;margin-bottom:10px;display:flex}.message-panel__radio{font-family:var(--font-body);color:#ffffffe0;cursor:pointer;align-items:center;gap:6px;font-size:13px;display:inline-flex}.message-panel__radio input{accent-color:#2196f3}.message-panel__device-list{background:#0003;border-radius:8px;max-height:160px;margin-bottom:8px;padding:8px 10px;overflow-y:auto}.message-panel__device-row{font-family:var(--font-body);color:#fff;cursor:pointer;align-items:center;gap:10px;padding:5px 0;font-size:13px;display:flex}.message-panel__device-name{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.message-panel__selected-summary{font-family:var(--font-body);color:#ffffff8c;margin:0 0 8px;font-size:12px}.message-panel__label{font-family:var(--font-head);color:#ffffffbf;margin-bottom:6px;font-size:12px;font-weight:700;display:block}.message-panel__textarea{box-sizing:border-box;color:#fff;width:100%;font-family:var(--font-body);resize:vertical;background:#0d1b2e80;border:1px solid #ffffff26;border-radius:8px;min-height:72px;padding:10px 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10px;font-size:11px;font-weight:600}.mute-row__btn.is-muted{color:#e84040;background:#e8404033}.mute-row__btn.is-unmuted{color:#fff9;background:#ffffff1a}.content-view{min-height:calc(100vh - var(--header-h));background:var(--color-bg-content);padding:32px 40px}.content-view__heading{font-family:var(--font-head);color:#0d1b2e;margin:0 0 20px;font-size:24px;font-weight:900}.content-view__chip-bar{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:16px;display:flex}.content-view__chip{color:#fff;font-family:var(--font-body);cursor:pointer;transition:background-color var(--transition-fast);background:#2a3a52;border:none;border-radius:20px;padding:5px 12px;font-size:13px}.content-view__chip.is-selected{background:#4caf50}.content-view__chip:hover:not(.is-selected){background:#3a4d6a}.content-view__chip-meta{color:#0d1b2e8c;align-items:center;gap:12px;margin-left:4px;font-size:13px;display:flex}.content-view__toggle-link{color:#2196f3;cursor:pointer;background:0 0;border:none;padding:0;font-size:13px;text-decoration:underline}.content-view__search{box-sizing:border-box;width:100%;font-family:var(--font-body);color:#0d1b2e;background:#fff;border:1px solid #0d1b2e1f;border-radius:8px;margin-bottom:24px;padding:10px 14px;font-size:15px}.content-view__search::placeholder{color:#0d1b2e59}.content-view__grid{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}@media (width<=1200px){.content-view__grid{grid-template-columns:repeat(3,1fr)}}@media (width<=768px){.content-view__grid{grid-template-columns:repeat(2,1fr)}}@media (width<=480px){.content-view__grid{grid-template-columns:1fr}}.scene-card{background:#fff;border:1px solid #0d1b2e1a;border-radius:10px;flex-direction:column;gap:8px;padding:16px;display:flex}.scene-card__name{font-family:var(--font-head);color:#0d1b2e;margin:0;font-size:15px;font-weight:700}.scene-card__availability{color:#0d1b2e8c;margin:0;font-size:12px}.scene-card__active-badge{color:#fff;background:#4caf50;border-radius:10px;align-self:flex-start;padding:2px 8px;font-size:11px;font-weight:700;display:inline-block}.scene-card__actions{gap:8px;margin-top:auto;padding-top:8px;display:flex}.scene-card__btn{font-family:var(--font-body);cursor:pointer;transition:background-color var(--transition-fast), opacity var(--transition-fast);border-radius:6px;flex:1;padding:7px 10px;font-size:12px;font-weight:600}.scene-card__btn--all{color:#fff;background:#2196f3;border:none}.scene-card__btn--all:hover{background:#1976d2}.scene-card__btn--selected{color:#2196f3;background:0 0;border:1.5px solid #2196f3}.scene-card__btn--selected:hover:not(:disabled){background:#2196f314}.scene-card__btn--selected:disabled{opacity:.4;cursor:not-allowed}.content-view__placeholder{text-align:center;color:#0d1b2e73;padding:64px 0;font-size:15px}.admin-view{min-height:calc(100vh - var(--header-h));background:var(--color-bg-content);padding:32px 40px}.admin-view__heading{font-family:var(--font-head);color:#0d1b2e;margin:0 0 24px;font-size:24px;font-weight:900}.admin-tabs{border-bottom:2px solid #0d1b2e1a;gap:4px;margin-bottom:28px;display:flex}.admin-tabs__tab{font-family:var(--font-body);color:#0d1b2e8c;cursor:pointer;transition:color var(--transition-fast), border-color var(--transition-fast);background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-2px;padding:10px 20px;font-size:14px;font-weight:600}.admin-tabs__tab:hover{color:#0d1b2e}.admin-tabs__tab.is-active{color:#2196f3;border-bottom-color:#2196f3}.admin-panel{background:#fff;border:1px solid #0d1b2e14;border-radius:10px;margin-bottom:24px;overflow:hidden}.admin-panel__header{border-bottom:1px solid #0d1b2e14;justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.admin-panel__title{font-family:var(--font-head);color:#0d1b2e;margin:0;font-size:15px;font-weight:800}.admin-table{border-collapse:collapse;width:100%}.admin-table th,.admin-table td{text-align:left;border-bottom:1px solid #0d1b2e0f;padding:12px 20px;font-size:13px}.admin-table th{font-family:var(--font-head);color:#0d1b2e8c;background:#0d1b2e05;font-weight:700}.admin-table td{color:#0d1b2e;vertical-align:middle}.admin-table tr:last-child td{border-bottom:none}.admin-table__sub{color:#0d1b2e73;margin-top:2px;font-size:11px;display:block}.admin-table__mono{color:#0d1b2ea6;text-overflow:ellipsis;white-space:nowrap;max-width:160px;font-family:monospace;font-size:12px;display:block;overflow:hidden}.admin-table__actions{flex-wrap:wrap;gap:6px;display:flex}.pill{border-radius:10px;padding:2px 9px;font-size:11px;font-weight:700;display:inline-block}.pill--admin{color:#1565c0;background:#2196f31f}.pill--teacher,.pill--active{color:#2e7d32;background:#4caf501f}.pill--inactive{color:#0d1b2e8c;background:#0d1b2e14}.pill--approved{color:#2e7d32;background:#4caf501f}.pill--pending{color:#9a6700;background:#f5c51826}.pill--devices{color:#1565c0;background:#2196f31a}.btn-sm{font-family:var(--font-body);cursor:pointer;transition:background-color var(--transition-fast), opacity var(--transition-fast);border:1px solid #0000;border-radius:5px;padding:4px 10px;font-size:12px;font-weight:600}.btn-sm--primary{color:#fff;background:#2196f3;border-color:#2196f3}.btn-sm--primary:hover{background:#1976d2;border-color:#1976d2}.btn-sm--danger{color:#e53935;background:0 0;border-color:#e53935}.btn-sm--danger:hover{background:#e539350f}.btn-sm--outline{color:#0d1b2ea6;background:0 0;border-color:#0d1b2e40}.btn-sm--outline:hover{background:#0d1b2e0a}.btn-sm--green{color:#fff;background:#4caf50;border-color:#4caf50}.btn-sm--green:hover{background:#43a047;border-color:#43a047}.btn-sm:disabled{opacity:.35;cursor:not-allowed}.invite-box{background:#2196f30f;border:1px solid #2196f333;border-radius:8px;margin:0 20px 16px;padding:14px 16px}.invite-box__row{align-items:center;gap:8px;margin-bottom:8px;display:flex}.invite-box__input{color:#0d1b2e;background:#fff;border:1px solid #0d1b2e26;border-radius:6px;flex:1;padding:7px 10px;font-family:monospace;font-size:12px}.invite-box__note{color:#0d1b2e8c;margin:0;font-size:11px}.invite-box__dismiss{color:#0d1b2e73;cursor:pointer;background:0 0;border:none;padding:0 4px;font-size:16px;line-height:1}.invite-list{padding:0 20px 16px}.invite-list__row{border-bottom:1px solid #0d1b2e0f;justify-content:space-between;align-items:center;padding:10px 0;display:flex}.invite-list__row:last-child{border-bottom:none}.invite-list__meta{color:#0d1b2e8c;font-size:12px}.invite-list__expires-soon{color:#f5c518;font-weight:600}.warn-icon{color:#f5c518;cursor:help;margin-left:4px;font-size:12px}.rename-input{font-size:13px;font-family:var(--font-body);border:1px solid #0d1b2e40;border-radius:5px;width:160px;padding:4px 8px}.settings-form{padding:20px}.settings-form__label{font-family:var(--font-head);color:#0d1b2e8c;margin-bottom:6px;font-size:12px;font-weight:700;display:block}.settings-form__hint{color:#0d1b2e73;margin:4px 0 16px;font-size:11px}.settings-form__input{width:120px;font-size:14px;font-family:var(--font-body);color:#0d1b2e;border:1px solid #0d1b2e26;border-radius:6px;padding:8px 12px}.settings-form__saved{color:#4caf50;opacity:0;margin-left:12px;font-size:13px;font-weight:600;transition:opacity .3s}.settings-form__saved.is-visible{opacity:1}.admin-empty{text-align:center;color:#0d1b2e73;padding:32px 20px;font-size:14px}.admin-loading{color:#0d1b2e73;padding:20px;font-size:13px}.toast{padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-sm);color:#fff;font-size:var(--font-size-sm);box-shadow:var(--shadow-card);margin-top:var(--spacing-xs);animation:.2s toast-in}.toast--success{background:var(--color-status-done)}.toast--error{background:var(--color-status-error)}.toast--info{background:var(--color-accent)}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.placeholder-page{min-height:calc(100vh - var(--header-h));justify-content:center;align-items:center;padding:40px;display:flex}.placeholder-page__inner{text-align:center;max-width:480px;box-shadow:var(--shadow-card);color:#0d1b2e;background:#fff;border-radius:12px;padding:48px}.placeholder-page__icon{color:#0d1b2e4d;margin-bottom:16px;font-size:36px}.placeholder-page__inner h2{font-family:var(--font-head);margin-bottom:12px;font-size:24px;font-weight:800}.placeholder-page__inner p{color:#0d1b2e8c;font-size:14px}