.skip-link{z-index:2000;color:#fff;background:#172019;border-radius:10px;padding:10px 14px;font-weight:850;position:fixed;top:10px;left:12px;transform:translateY(-150%);box-shadow:0 8px 24px #0003}.skip-link:focus{transform:translateY(0)}.mobile-app-nav{display:none}.primary-button:disabled,.secondary-button:disabled{cursor:not-allowed;opacity:.52;transform:none!important}.study-rhythm-note{background:#ffffff8c;border:1px solid #d9ddd7;border-radius:12px;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;padding:10px 12px;font-size:11px;display:flex}.study-rhythm-note span{color:var(--muted)}.applied-track-node{background:linear-gradient(145deg,#f2f8f4,#fffdf7);border-style:dashed}.applied-track-node.complete{border-style:solid}.empty-review a{color:var(--green-dark);font-weight:850}.v1-tool-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.v1-tool-grid>a{background:#ffffffad;border:1px solid #dcddd7;border-radius:18px;flex-direction:column;gap:7px;min-width:0;min-height:175px;padding:18px;transition:transform .15s,border-color .15s;display:flex}.v1-tool-grid>a:hover{border-color:#aac9b6;transform:translateY(-2px)}.v1-tool-grid>a>span{font-size:28px}.v1-tool-grid strong{margin-top:auto;font-size:16px}.v1-tool-grid small{color:var(--muted);line-height:1.45}.v1-tool-section .section-heading .secondary-button{white-space:nowrap}@media (max-width:900px){.v1-tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:720px){body{padding-bottom:calc(72px + env(safe-area-inset-bottom))}.mobile-app-nav{left:10px;right:10px;bottom:calc(8px + env(safe-area-inset-bottom));z-index:1000;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#faf9f4f0;border:1px solid #242d2726;border-radius:18px;grid-template-columns:repeat(5,1fr);min-height:58px;padding:5px;display:grid;position:fixed;box-shadow:0 12px 35px #181f1a33}.mobile-app-nav>a{color:#465149;border-radius:13px;align-content:center;place-items:center;gap:2px;min-width:0;min-height:48px;display:grid}.mobile-app-nav>a:focus-visible{outline-offset:-2px;outline:3px solid #1b7d584d}.mobile-app-nav span{font-size:19px;line-height:1}.mobile-app-nav small{text-overflow:ellipsis;white-space:nowrap;max-width:100%;font-size:8px;font-weight:850;overflow:hidden}.footer{padding-bottom:25px}.study-rhythm-note{flex-direction:column;align-items:flex-start;gap:4px}.v1-tool-grid{grid-template-columns:1fr 1fr}.v1-tool-grid>a{min-height:150px}}@media (max-width:440px){.v1-tool-grid{grid-template-columns:1fr}.v1-tool-grid>a{min-height:130px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto!important}.skip-link{transition:none!important}.mobile-app-nav *,.v1-tool-grid>a{transition:none!important;transform:none!important}}