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var(--portal-blue-hover);--auth-accent-soft: var(--portal-blue-soft);--auth-input-bg: var(--portal-input-bg);--auth-shadow-sm: var(--portal-shadow-soft);--acc-scaffold: var(--portal-bg-main);--acc-surface: var(--portal-card-bg);--acc-text: var(--portal-text);--acc-text-muted: var(--portal-text-muted);--acc-border: var(--portal-line);--acc-success-bg: rgba(34, 197, 94, .12);--acc-error-bg: rgba(239, 68, 68, .12);--acc-shadow: var(--portal-shadow-soft);--acc-shadow-lg: 0 16px 40px rgba(36, 68, 118, .12);--builder-bg: var(--portal-bg-main);--builder-card-bg: var(--portal-card-bg);--builder-border: var(--portal-line);--builder-text: var(--portal-text);--builder-text-muted: var(--portal-text-muted);--builder-canvas-bg: #eef1f4}html{color-scheme:light}html[data-portal-theme=dark]{color-scheme:dark;--portal-bg-main: #0b0f19;--portal-bg-soft: #111827;--portal-card-bg: #1f2937;--portal-card-border: #374151;--portal-input-bg: #111827;--portal-table-head-bg: #111827;--portal-line: #374151;--portal-shadow-soft: 0 4px 24px rgba(0, 0, 0, .32);--portal-overlay-bg: rgba(11, 15, 25, .78);--portal-shell-bar-bg: rgba(17, 24, 39, .96);--portal-text: #ffffff;--portal-text-muted: #9ca3af;--portal-table-head-text: var(--portal-text);--portal-blue-soft: rgba(37, 99, 235, .18);--portal-accent-text: #60a5fa;--portal-sidebar-text: #9ca3af;--portal-sidebar-active-bg: #2563eb;--portal-sidebar-active-text: #ffffff;--portal-nav-hover-bg: rgba(37, 99, 235, .35);--portal-nav-hover-text: #ffffff;--portal-page-nav-active-bg: var(--portal-accent);--portal-page-nav-active-text: #ffffff;--portal-subnav-bg: var(--portal-input-bg);--portal-form-bg: var(--portal-input-bg);--portal-form-border: var(--portal-line);--portal-form-focus-border: var(--portal-accent);--portal-form-focus-ring: rgba(37, 99, 235, .2);--portal-form-disabled-bg: rgba(17, 24, 39, .55);--portal-btn-outline-bg: var(--portal-input-bg);--portal-btn-outline-border: var(--portal-line);--portal-btn-outline-hover-bg: rgba(37, 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i{width:1.125rem;font-size:var(--sidebar-nav-icon-size, 1rem);text-align:center;color:inherit;flex-shrink:0;margin-top:2px}.nav-submenu .nav-subitem .nav-label,.nav-submenu-flyout .nav-subitem .nav-label{flex:1;min-width:0;white-space:normal;overflow:visible;text-overflow:unset;line-height:1.35;word-break:break-word}.nav-subitem:hover{color:var(--sidebar-nav-color-hover, var(--portal-blue, #1677ff));background-color:#ffffffb8;border-color:#1677ff2e}.nav-subitem.active{color:var(--sidebar-nav-color-hover, var(--portal-blue, #1677ff));background-color:#ffffffd1;border-color:#1677ff3d;box-shadow:0 1px 3px #1677ff1f;font-weight:var(--sidebar-nav-font-weight, 500)}html.main-sidebar-collapsed .nav-group-head{margin:0 8px}html.main-sidebar-collapsed .nav-group-link{justify-content:center;gap:0;padding:8px 0;margin:0;width:calc(100% - 16px)}html.main-sidebar-collapsed .nav-group-toggle,html.main-sidebar-collapsed .nav-submenu{display:none}html.main-sidebar-collapsed .nav-group:hover 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var(--main-sidebar-width));min-width:0;max-width:100%;min-height:100vh;box-sizing:border-box;overflow-x:clip;transition:margin-left .2s ease,width .2s ease,background-color .2s ease}.main-content--materials{margin-left:calc(var(--main-sidebar-width) + 260px);padding:24px;width:calc(100% - var(--main-sidebar-width) - 260px);min-width:0;max-width:100%;min-height:100vh;box-sizing:border-box;overflow-x:clip;transition:margin-left .2s ease,width .2s ease,background-color .2s ease}.page-header-bar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px 16px;margin-bottom:24px}.section-title{font-size:1.5rem;font-weight:600;color:#1e2a3a}.btn-create{background-color:#0d6efd;color:#fff;border:none;padding:8px 20px;border-radius:30px;font-size:.9rem;font-weight:500;cursor:pointer;display:inline-flex;align-items:center;gap:8px;flex-shrink:0;white-space:nowrap;transition:background-color 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