.tk-breadcrumb { font-size: .85rem; opacity: .75; margin-bottom: 14px; }
        .tk-breadcrumb a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
        .tk-breadcrumb span[aria-hidden] { margin: 0 6px; }
        .tk-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 28px; }
        .tk-btn-outline { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 999px; border: 1px solid rgba(128,128,128,.45); color: inherit; font-weight: 600; text-decoration: none; }
        .tk-btn-outline:hover { background: rgba(128,128,128,.1); }

        .tk-section { padding: 88px 0; }
        .tk-first { padding-top: 72px; }
        .tk-split { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }
        .tk-split.tk-reverse { grid-template-columns: 1.2fr 1fr; }
        .tk-split.tk-reverse .tk-copy { order: 2; }
        .tk-copy p { line-height: 1.7; opacity: .85; }
        .tk-copy .section-header { text-align: left; margin-bottom: 18px; }
        .tk-lead { text-align: center; max-width: 680px; margin: 0 auto 36px; line-height: 1.7; opacity: .85; }
        .tk-note { font-size: .78rem; opacity: .6; margin-top: 10px; }
        .tk-note-center { text-align: center; }
        .tk-related { text-align: center; margin-top: 36px; font-size: .95rem; line-height: 1.7; }
        .tk-related a { color: inherit; font-weight: 600; text-underline-offset: 3px; }
        .tk-list { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 12px; }
        .tk-list li { display: flex; gap: 12px; align-items: flex-start; line-height: 1.5; }
        .tk-tick { flex: none; width: 22px; height: 22px; border-radius: 50%; background: rgba(22,163,74,.15); color: #16a34a; display: grid; place-items: center; margin-top: 1px; }
        .tk-tick svg { width: 13px; height: 13px; }
        .tk-sr { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

        /* Window chrome */
        .tk-window { position: relative; border: 1px solid rgba(128,128,128,.28); border-radius: 18px; overflow: hidden; background: rgba(128,128,128,.06); box-shadow: 0 24px 56px -28px rgba(0,0,0,.4); min-width: 0; }
        .tk-window [hidden] { display: none !important; }
        .tk-window-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid rgba(128,128,128,.22); font-size: .82rem; }
        .tk-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(128,128,128,.4); }
        .tk-window-title { margin-left: 8px; font-weight: 600; }
        .tk-foot { padding: 12px 14px; border-top: 1px solid rgba(128,128,128,.22); background: rgba(128,128,128,.06); font-size: .8rem; font-weight: 600; }
        .tk-body { padding: 14px; display: grid; gap: 12px; }

        /* Board toolbar */
        .tk-tools { padding: 14px; display: grid; gap: 12px; border-bottom: 1px solid rgba(128,128,128,.18); }
        .tk-top-row { display: flex; gap: 10px; align-items: center; }
        .tk-search { flex: 1; display: flex; align-items: center; gap: 8px; border: 1px solid rgba(128,128,128,.35); border-radius: 10px; padding: 0 12px; min-width: 0; background: rgba(128,128,128,.06); }
        .tk-search svg { width: 16px; height: 16px; flex: none; opacity: .6; }
        .tk-search input { flex: 1; min-width: 0; border: 0; background: transparent; color: inherit; font: inherit; font-size: .85rem; padding: 10px 0; outline: none; }
        .tk-search:focus-within { outline: 2px solid #2563eb; outline-offset: 1px; }
        .tk-add { display: inline-flex; align-items: center; gap: 6px; border: 0; background: #1e3a5f; color: #fff; font: inherit; font-size: .85rem; font-weight: 600; padding: 10px 16px; border-radius: 10px; cursor: pointer; white-space: nowrap; }
        .tk-add:hover { background: #274b7a; }
        .tk-add svg { width: 16px; height: 16px; }
        .tk-filters { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
        .tk-show { font-size: .8rem; opacity: .65; margin-right: 2px; }
        .tk-pill { border: 1px solid rgba(128,128,128,.3); background: transparent; color: inherit; font: inherit; font-size: .8rem; font-weight: 600; padding: 6px 12px; border-radius: 8px; cursor: pointer; }
        .tk-pill:hover { background: rgba(128,128,128,.12); }
        .tk-pill[aria-pressed="true"] { background: rgba(37,99,235,.14); border-color: rgba(37,99,235,.55); color: #2563eb; }
        .tk-hint { margin: 0; font-size: .78rem; opacity: .65; }
        .tk-pill:focus-visible, .tk-add:focus-visible, .tk-btn:focus-visible, .tk-card:focus-visible, .tk-seg button:focus-visible { outline: 2px solid #2563eb; outline-offset: 2px; }

        .tk-form { border: 1px solid rgba(128,128,128,.3); border-radius: 14px; padding: 14px; background: rgba(128,128,128,.07); display: grid; gap: 12px; }
        .tk-form-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
        .tk-field { display: grid; gap: 5px; min-width: 0; }
        .tk-field-wide { grid-column: 1 / -1; }
        .tk-field label { font-size: .75rem; font-weight: 600; opacity: .8; }
        .tk-field input, .tk-field select { box-sizing: border-box; width: 100%; font: inherit; font-size: .85rem; color: inherit; background: rgba(128,128,128,.08); border: 1px solid rgba(128,128,128,.35); border-radius: 8px; padding: 8px 10px; min-width: 0; }
        .tk-error { margin: 0; font-size: .78rem; color: #dc2626; font-weight: 600; }
        .tk-form-actions { display: flex; gap: 8px; }
        .tk-btn { font: inherit; font-size: .8rem; font-weight: 600; padding: 7px 14px; border-radius: 999px; border: 1px solid rgba(128,128,128,.4); background: transparent; color: inherit; cursor: pointer; }
        .tk-btn:hover { background: rgba(128,128,128,.14); }
        .tk-btn-primary { background: #2563eb; border-color: #2563eb; color: #fff; }
        .tk-btn-primary:hover { background: #1d4ed8; }

        /* Columns and cards */
        .tk-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; padding: 14px; align-items: start; }
        .tk-col { border: 1px solid rgba(128,128,128,.22); border-radius: 14px; background: rgba(128,128,128,.05); min-width: 0; }
        .tk-col-head { display: flex; align-items: center; justify-content: space-between; padding: 12px 14px; border-bottom: 1px solid rgba(128,128,128,.18); }
        .tk-col-title { font-weight: 700; font-size: .88rem; }
        .tk-count { min-width: 26px; text-align: center; font-size: .75rem; font-weight: 700; padding: 3px 8px; border-radius: 999px; background: rgba(37,99,235,.14); color: #2563eb; }
        .tk-col-body { padding: 10px; display: grid; gap: 10px; min-height: 120px; align-content: start; border-radius: 0 0 14px 14px; transition: background .15s; }
        .tk-col-body.is-over { background: rgba(37,99,235,.1); outline: 2px dashed rgba(37,99,235,.5); outline-offset: -4px; }
        .tk-col-empty { margin: 0; font-size: .8rem; opacity: .55; text-align: center; padding: 18px 0; }
        .tk-card { display: grid; grid-template-columns: auto 1fr auto; gap: 8px; align-items: start; border: 1px solid rgba(128,128,128,.28); border-left: 3px solid rgba(128,128,128,.4); border-radius: 12px; padding: 12px; background: rgba(128,128,128,.07); }
        .tk-card[draggable="true"] { cursor: grab; }
        .tk-card.is-dragging { opacity: .45; }
        .tk-card:hover { background: rgba(128,128,128,.12); }
        .tk-card.tk-p-urgent { border-left-color: #b91c1c; }
        .tk-card.is-moved { animation: tkMoved 1s ease; }
        @keyframes tkMoved { 0%, 100% { box-shadow: 0 0 0 0 transparent; } 30% { box-shadow: 0 0 0 5px rgba(37,99,235,.3); } }
        .tk-grip { width: 14px; opacity: .4; padding-top: 1px; }
        .tk-grip svg { width: 14px; height: 18px; }
        .tk-card-title { font-weight: 700; font-size: .86rem; line-height: 1.3; }
        .tk-card-due { display: flex; align-items: center; gap: 6px; font-size: .76rem; opacity: .7; margin-top: 4px; }
        .tk-card-due svg { width: 13px; height: 13px; flex: none; }
        .tk-chips { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 9px; }
        .tk-chip { font-size: .68rem; font-weight: 600; padding: 3px 8px; border-radius: 999px; background: rgba(128,128,128,.2); }
        .tk-chip.tk-pr-urgent { background: rgba(220,38,38,.16); color: #dc2626; }
        .tk-chip.tk-pr-high { background: rgba(225,29,72,.13); color: #e11d48; }
        .tk-chip.tk-pr-medium { background: rgba(217,119,6,.17); color: #d97706; }
        .tk-chip.tk-aud-learner { background: rgba(147,51,234,.15); color: #9333ea; }
        .tk-chip.tk-aud-team { background: rgba(37,99,235,.13); color: #2563eb; }
        .tk-av { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font-size: .66rem; font-weight: 700; color: #fff; flex: none; }
        .tk-av-0 { background: linear-gradient(135deg, #60a5fa, #2563eb); }
        .tk-av-1 { background: linear-gradient(135deg, #34d399, #059669); }
        .tk-av-2 { background: linear-gradient(135deg, #c084fc, #9333ea); }
        .tk-av-3 { background: linear-gradient(135deg, #fb923c, #ea580c); }

        /* Dashboard list */
        .tk-seg { display: inline-flex; gap: 4px; padding: 4px; border-radius: 10px; background: rgba(128,128,128,.12); width: fit-content; }
        .tk-seg button { border: 0; background: transparent; color: inherit; font: inherit; font-size: .78rem; font-weight: 600; padding: 6px 14px; border-radius: 7px; cursor: pointer; opacity: .75; }
        .tk-seg button[aria-pressed="true"] { background: rgba(128,128,128,.28); opacity: 1; }
        .tk-rows { list-style: none; margin: 0; padding: 0; display: grid; }
        .tk-row { display: flex; align-items: center; gap: 12px; padding: 11px 2px; border-top: 1px solid rgba(128,128,128,.14); }
        .tk-row:first-child { border-top: 0; }
        .tk-row[hidden] { display: none; }
        .tk-bar { flex: none; width: 5px; align-self: stretch; border-radius: 4px; background: #9ca3af; min-height: 34px; }
        .tk-bar-urgent { background: #991b1b; }
        .tk-bar-high { background: #d98c8c; }
        .tk-bar-medium { background: #facc15; }
        .tk-bar-low { background: #d1d5db; }
        .tk-row-main { flex: 1; min-width: 0; }
        .tk-row-title { font-weight: 700; font-size: .9rem; }
        .tk-row-sub { font-size: .76rem; opacity: .75; margin-top: 2px; }
        .tk-row-who { color: #2563eb; font-weight: 600; margin-left: 4px; opacity: 1; }
        .tk-row-open { width: 18px; opacity: .6; flex: none; }
        .tk-row-open svg { width: 18px; height: 18px; }

        .tk-steps { margin-top: 44px; }
        .tk-step-card { flex-direction: column; gap: 16px; }
        .tk-step-card .features-card-icon { color: #fff; font-weight: 800; font-size: 1.05rem; line-height: 1; }
        @media (min-width: 769px) { .tk-steps.features-grid { grid-template-columns: repeat(3, 1fr); } }

        @media (max-width: 1000px) { .tk-cols { grid-template-columns: 1fr; } }
        @media (max-width: 900px) {
            .tk-section { padding: 64px 0; }
            .tk-split, .tk-split.tk-reverse { grid-template-columns: 1fr; gap: 32px; }
            .tk-split.tk-reverse .tk-copy { order: 0; }
        }
        @media (max-width: 640px) {
            .tk-form-grid { grid-template-columns: 1fr; }
            .tk-add span { display: none; }
            .tk-add { padding: 10px 12px; }
        }
        @media (prefers-reduced-motion: reduce) { .tk-card.is-moved { animation: none; } .tk-col-body { transition: none; } }