.at-breadcrumb { font-size: .85rem; opacity: .75; margin-bottom: 14px; }
        .at-breadcrumb a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
        .at-breadcrumb span[aria-hidden] { margin: 0 6px; }

        .at-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 28px; }
        .at-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; }
        .at-btn-outline:hover { background: rgba(128,128,128,.1); }

        .at-section { padding: 88px 0; }
        .at-split { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
        .at-split.at-reverse { grid-template-columns: 1.1fr 1fr; }
        .at-split.at-reverse .at-copy { order: 2; }
        .at-copy p { line-height: 1.7; opacity: .85; }
        .at-copy .section-header { text-align: left; margin-bottom: 18px; }
        .at-copy a, .at-related a { color: inherit; font-weight: 600; text-underline-offset: 3px; }
        .at-note { font-size: .78rem; opacity: .6; margin-top: 10px; }
        .at-related { text-align: center; margin-top: 36px; font-size: .95rem; }

        .at-list { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 12px; }
        .at-list li { display: flex; gap: 12px; align-items: flex-start; line-height: 1.5; }
        .at-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; }
        .at-tick svg { width: 13px; height: 13px; }

        /* Mock application window */
        .at-window { 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); }
        .at-window-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid rgba(128,128,128,.22); font-size: .82rem; }
        .at-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(128,128,128,.4); }
        .at-window-title { margin-left: 8px; font-weight: 600; }
        .at-window-flag { margin-left: auto; }
        .at-body { padding: 14px; display: grid; gap: 12px; }
        .at-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 12px 14px; border-top: 1px solid rgba(128,128,128,.22); background: rgba(128,128,128,.06); font-size: .82rem; font-weight: 600; }
        .at-foot > span { margin-right: auto; }

        .at-chip { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 999px; font-size: .75rem; font-weight: 600; white-space: nowrap; }
        .at-chip-sm { font-size: .68rem; padding: 2px 8px; margin-top: 4px; }
        .at-chip.ok { background: rgba(22,163,74,.15); color: #16a34a; }
        .at-chip.info { background: rgba(37,99,235,.14); color: #2563eb; }
        .at-chip.bad { background: rgba(220,38,38,.14); color: #dc2626; }
        .at-chip.muted { background: rgba(128,128,128,.18); opacity: .85; }

        .at-tile { border: 1px solid rgba(128,128,128,.22); border-radius: 14px; padding: 14px; background: rgba(128,128,128,.05); }
        .at-tile-title { margin: 0 0 10px; font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; opacity: .65; font-weight: 600; }
        .at-big { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
        .at-big strong { font-size: 1.7rem; letter-spacing: -.02em; line-height: 1.1; }
        .at-sub { font-size: .8rem; opacity: .7; }
        .at-bar { height: 8px; border-radius: 999px; background: rgba(128,128,128,.22); overflow: hidden; }
        .at-bar > i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #60a5fa, #2563eb); }
        .at-bar.green > i { background: linear-gradient(90deg, #4ade80, #16a34a); }
        .at-li-title { font-weight: 600; font-size: .88rem; }
        .at-li-sub { font-size: .75rem; opacity: .65; margin-top: 1px; }

        .at-btn { border: 1px solid rgba(128,128,128,.4); background: transparent; color: inherit; border-radius: 10px; padding: 8px 14px; font: inherit; font-weight: 600; font-size: .83rem; cursor: pointer; }
        .at-btn:hover { background: rgba(128,128,128,.12); }
        .at-btn[hidden] { display: none; }
        .at-btn-primary { background: #16a34a; border-color: #16a34a; color: #fff; }
        .at-btn-primary:hover { background: #15803d; }
        .at-btn:focus-visible, .at-add:focus-visible, .at-remove:focus-visible, .at-opt:focus-within { outline: 2px solid #2563eb; outline-offset: 2px; }

        /* Icon squares: same gradients as the site's .features-card-icon */
        .at-ico { flex: none; width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; color: #fff; }
        .at-ico svg { width: 17px; height: 17px; }
        .at-ico.blue { background: linear-gradient(135deg, #60a5fa, #2563eb); }
        .at-ico.purple { background: linear-gradient(135deg, #c084fc, #9333ea); }
        .at-ico.orange { background: linear-gradient(135deg, #fb923c, #ea580c); }

        /* Builder canvas */
        .at-builder { display: grid; grid-template-columns: 190px 1fr; }
        .at-palette { padding: 14px; border-right: 1px solid rgba(128,128,128,.22); display: grid; gap: 8px; align-content: start; }
        .at-palette .at-tile-title, .at-canvas .at-tile-title { margin-bottom: 2px; }
        .at-add { display: flex; align-items: center; gap: 10px; width: 100%; text-align: left; border: 1px solid rgba(128,128,128,.3); background: rgba(128,128,128,.05); color: inherit; font: inherit; font-weight: 600; font-size: .85rem; padding: 8px 10px; border-radius: 12px; cursor: pointer; }
        .at-add:hover:not(:disabled) { background: rgba(128,128,128,.14); }
        .at-add:disabled { opacity: .45; cursor: not-allowed; }
        .at-canvas { padding: 14px; display: grid; gap: 10px; align-content: start; min-height: 300px; }
        .at-blocks { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
        .at-block { display: flex; align-items: center; gap: 12px; padding: 12px; border: 1px solid rgba(128,128,128,.25); border-radius: 14px; background: rgba(128,128,128,.07); }
        .at-block-body { flex: 1; min-width: 0; }
        .at-remove { flex: none; width: 28px; height: 28px; border-radius: 8px; border: 1px solid rgba(128,128,128,.35); background: transparent; color: inherit; font-size: 1.1rem; line-height: 1; cursor: pointer; }
        .at-remove:hover { background: rgba(220,38,38,.12); border-color: #dc2626; color: #dc2626; }
        .at-drop { border: 2px dashed rgba(128,128,128,.4); border-radius: 14px; padding: 16px; text-align: center; font-size: .82rem; opacity: .7; }

        /* Skills tracker */
        .at-legend { display: flex; flex-wrap: wrap; gap: 16px; font-size: .75rem; font-weight: 600; opacity: .8; }
        .at-legend span { display: inline-flex; align-items: center; gap: 6px; }
        .at-key { width: 14px; height: 8px; border-radius: 999px; display: inline-block; }
        .at-key.base { background: rgba(96,165,250,.4); }
        .at-key.trav { background: linear-gradient(90deg, #4ade80, #16a34a); }
        .at-skill-row { display: grid; grid-template-columns: 1.1fr 1.6fr 40px; gap: 14px; align-items: center; padding: 10px 0; }
        .at-skill-row + .at-skill-row { border-top: 1px solid rgba(128,128,128,.14); }
        .at-track { display: flex; height: 10px; border-radius: 999px; background: rgba(128,128,128,.2); overflow: hidden; }
        .at-base { background: rgba(96,165,250,.4); }
        .at-trav { background: linear-gradient(90deg, #4ade80, #16a34a); }
        .at-gain { font-size: .8rem; font-weight: 700; text-align: right; }

        /* Learning plan */
        .at-plan { display: grid; gap: 2px; }
        .at-group-title { margin: 8px 0 2px; font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; opacity: .65; font-weight: 600; }
        .at-plan-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 12px; border-radius: 12px; background: rgba(128,128,128,.05); border: 1px solid rgba(128,128,128,.16); margin-top: 6px; }

        /* Quiz */
        .at-q-text { margin: 0; font-weight: 600; font-size: 1.02rem; line-height: 1.4; }
        .at-opts { display: grid; gap: 8px; }
        .at-opt { display: flex; align-items: center; gap: 10px; padding: 11px 14px; border: 1px solid rgba(128,128,128,.3); border-radius: 12px; cursor: pointer; font-size: .92rem; background: rgba(128,128,128,.04); }
        .at-opt:hover { background: rgba(128,128,128,.12); }
        .at-opt input { accent-color: #16a34a; width: 16px; height: 16px; }
        .at-opt.is-selected { border-color: rgba(128,128,128,.7); background: rgba(128,128,128,.12); }
        .at-opt.is-correct { border-color: #16a34a; background: rgba(22,163,74,.14); }
        .at-opt.is-wrong { border-color: #dc2626; background: rgba(220,38,38,.12); }
        .at-feedback { margin: 0; min-height: 1.4em; font-size: .88rem; font-weight: 600; }
        .at-feedback.ok { color: #16a34a; }
        .at-feedback.bad { color: #dc2626; }

        /* Step cards: reuse the site's .features-card styling; only layout is set here. */
        .at-steps { margin-top: 44px; }
        .at-step-card { flex-direction: column; gap: 16px; }
        .at-step-card .features-card-icon { color: #fff; font-weight: 800; font-size: 1.05rem; line-height: 1; }
        @media (min-width: 769px) { .at-steps.features-grid { grid-template-columns: repeat(3, 1fr); } }

        /* FAQ: no page-specific CSS needed. This page reuses the homepage's .faq-* styles and the
           accordion script in assets/js/neuvex-script.js. */

        @media (max-width: 900px) {
            .at-section { padding: 64px 0; }
            .at-split, .at-split.at-reverse { grid-template-columns: 1fr; gap: 32px; }
            .at-split.at-reverse .at-copy { order: 0; }
        }
        @media (max-width: 640px) {
            .at-builder { grid-template-columns: 1fr; }
            .at-palette { border-right: 0; border-bottom: 1px solid rgba(128,128,128,.22); }
            .at-canvas { min-height: 0; }
            .at-skill-row { grid-template-columns: 1fr 40px; }
            .at-skill-row .at-track { grid-column: 1 / span 2; grid-row: 2; }
            .at-plan-row { flex-wrap: wrap; }
        }
        @media (prefers-reduced-motion: reduce) { .at-btn, .at-add, .at-opt { transition: none; } }