/* Header: search pinned top-left, bull watermark centered then shifted by search width */
.ab-header {
    --ab-search-w: 18rem;
    position: relative;
    overflow: hidden;
    width: 100vw;
    margin-left: calc(50% - 50vw);
    color: var(--text);
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-mid) 40%, var(--bg-elevated) 70%, #343a40 100%);
    border-bottom: 1px solid var(--border);
}

.ab-header-mark {
    display: none;
}

.ab-header-bull {
    position: absolute;
    top: 0;
    bottom: 0;
    left: calc(var(--ab-search-w) + 6.5rem);
    right: 0;
    z-index: 0;
    background-image: url("/images/Arachnibull.png");
    background-repeat: no-repeat;
    background-position: left center;
    background-size: auto 100%;
    opacity: 0.34;
    filter: brightness(0);
    pointer-events: none;
}

.ab-header-inner {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.85rem 2rem 1.1rem;
    overflow: hidden;
}

.ab-header-top {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
    position: relative;
    z-index: 2;
    min-height: 2.15rem;
}

.ab-header-left {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
    width: auto;
    max-width: 100%;
    position: relative;
    z-index: 2;
}

.ab-header-lead {
    max-width: 28rem;
}

.ab-kicker {
    margin: 0;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
}

.ab-lede {
    margin: 0.28rem 0 0;
    font-size: 0.95rem;
    line-height: 1.4;
    color: var(--text-muted);
}

.ab-search-toggle {
    display: none;
}

.ab-desk-search {
    display: flex;
    align-items: stretch;
    width: var(--ab-search-w);
    max-width: 100%;
    height: 2.15rem;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg-input);
    z-index: 2;
    flex: 0 0 auto;
}

    .ab-desk-search .search-input,
    .ab-desk-search .form-control.search-input {
        flex: 1 1 auto;
        width: auto;
        max-width: none !important;
        height: 100%;
        padding: 0 0.75rem;
        font-size: 0.82rem;
        border: none !important;
        box-shadow: none !important;
        border-radius: 0;
        background: transparent !important;
    }

        .ab-desk-search .search-input:focus {
            box-shadow: none !important;
        }

.ab-spy {
    flex: 0 0 2.15rem;
    width: 2.15rem;
    height: 100%;
    margin: 0;
    padding: 0;
    border: none;
    border-left: 1px solid var(--border);
    background: transparent;
    color: var(--accent);
    display: grid;
    place-items: center;
    cursor: pointer;
}

    .ab-spy:hover,
    .ab-spy:focus {
        background: var(--accent-dim);
        color: var(--accent-hover);
        box-shadow: none;
    }

    .ab-spy i {
        font-size: 0.95rem;
        line-height: 1;
    }

.ab-overview {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.55rem;
    margin-top: 0.85rem;
    position: relative;
    z-index: 1;
}

.ab-index {
    display: block;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: color-mix(in srgb, var(--bg) 10%, transparent);
    -webkit-backdrop-filter: blur(3px);
    padding: 0.55rem 0.7rem 0.45rem;
    text-decoration: none;
    color: inherit;
}

    .ab-index:hover {
        border-color: var(--accent-border);
        color: inherit;
    }

.ab-index-name {
    display: block;
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.ab-index .ab-chip-top {
    margin-top: 0.2rem;
}

.ab-index .ab-last {
    font-size: 0.95rem;
    color: var(--text) !important;
}

.ab-index .ab-pct {
    font-size: 0.7rem;
    padding: 0.08rem 0.35rem;
    border-radius: 999px;
}

    .ab-index .ab-pct.ab-up {
        background: var(--success-dim);
    }

    .ab-index .ab-pct.ab-dn {
        background: var(--danger-dim);
    }

.ab-index .ab-chip-bot {
    margin-top: 0.35rem;
}

.ab-index .ab-spark {
    margin-left: auto;
}

.ab-tape {
    display: flex;
    align-items: stretch;
    width: 100vw;
    margin-left: calc(50% - 50vw);
    background: var(--bg);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--accent-border-soft);
}

.ab-tape-label {
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    padding: 0 0.95rem;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--accent-dim);
    border-right: 1px solid var(--accent-border-soft);
    white-space: nowrap;
}

.ab-tape-track {
    display: flex;
    flex: 1;
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-muted) var(--bg);
}

.ab-tick {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.55rem 0.4rem 0.55rem 1.15rem;
    border-right: 1px solid var(--border);
    color: inherit;
    white-space: nowrap;
    min-width: 13.5rem;
    flex: 1 0 auto;
    cursor: grab;
}

.ab-tick-main {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    flex: 1;
    min-width: 0;
    text-decoration: none;
    color: inherit;
}

.ab-tick-x {
    flex: 0 0 1.4rem;
    width: 1.4rem;
    height: 1.4rem;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1;
    cursor: pointer;
    border-radius: 4px;
}

    .ab-tick-x:hover {
        color: var(--danger);
        background: var(--danger-dim);
    }

.ab-tape-empty {
    padding: 0.85rem 1rem;
    color: var(--text-muted);
    font-size: 0.88rem;
}

.ab-tick::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.ab-tick.is-up::before {
    background: var(--success);
}

.ab-tick.is-dn::before {
    background: var(--danger);
}

.ab-tick:hover {
    background: var(--accent-dim);
    color: inherit;
}

.ab-chip-top,
.ab-chip-bot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.35rem;
}

.ab-chip-bot {
    align-items: flex-end;
    margin-top: 0.2rem;
}

.ab-tick-sym {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text);
    letter-spacing: 0.04em;
    min-width: 2.6rem;
}

.ab-tick-last {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.82rem;
    font-variant-numeric: tabular-nums;
    color: var(--text);
}

.ab-tick-pct {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.72rem;
    font-variant-numeric: tabular-nums;
    padding: 0.12rem 0.4rem;
    border-radius: 999px;
    min-width: 4.1rem;
    text-align: center;
}

    .ab-tick-pct.ab-up {
        color: var(--success);
        background: var(--success-dim);
    }

    .ab-tick-pct.ab-dn {
        color: var(--danger);
        background: var(--danger-dim);
    }

.ab-tick .ab-spark {
    display: flex;
}

.ab-chip-sym {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.875rem;
    color: var(--text);
}

.ab-chip-px {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.78rem;
    font-variant-numeric: tabular-nums;
}

.ab-up {
    color: var(--success);
}

.ab-dn {
    color: var(--danger);
}

.ab-features {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3.5rem 2rem 4rem;
    display: grid;
    gap: 3.5rem;
    position: relative;
    z-index: 1;
}

.ab-about .promo-title {
    margin-bottom: 0.5rem;
}

.ab-feature {
    display: grid;
    gap: 2rem;
    align-items: center;
}

.ab-panel {
    border-radius: 14px;
    border: 1px solid var(--accent-border-soft, rgba(0, 196, 180, 0.18));
    background: var(--bg-elevated);
    padding: 1rem;
}

.ab-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.875rem;
    padding: 0.4rem 0;
    gap: 0.75rem;
    color: var(--text-muted);
}

    .ab-row + .ab-row {
        border-top: 1px solid var(--border);
    }

.ab-mono {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    color: var(--accent);
}

.ab-books {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.ab-book {
    border-radius: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 0.75rem;
}

    .ab-book span {
        display: block;
        font-size: 0.75rem;
        color: var(--text-muted);
    }

    .ab-book strong {
        display: block;
        margin-top: 0.25rem;
        font-weight: 500;
        color: var(--text);
    }

.ab-tree {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.75;
    padding: 1.25rem;
}

    .ab-tree .on {
        color: var(--accent);
    }

@media (min-width: 640px) {
    .ab-overview {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

/* Midsize: contain the bull inside the header; do not overflow top or right */
@media (min-width: 769px) and (max-width: 1199px) {
    .ab-lede {
        font-size: 0.78rem;
        line-height: 1.35;
        max-width: 22rem;
    }

    .ab-header-lead {
        max-width: 22rem;
    }

    .ab-header-bull {
        top: 0.65rem;
        bottom: 0;
        left: calc(var(--ab-search-w) + 1.25rem);
        right: 0.65rem;
        background-size: contain;
        background-position: left top;
        background-repeat: no-repeat;
    }
}

@media (min-width: 1200px) {
    .ab-header-bull {
        top: 0.65rem;
        bottom: 0.65rem;
    }

    .ab-overview {
        margin-top: 1.15rem;
        margin-bottom: 0.35rem;
    }
}

@media (min-width: 1024px) {
    .ab-overview {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }

    .ab-feature {
        grid-template-columns: 1fr 1fr;
    }

        .ab-feature.is-flip > :first-child {
            order: 2;
        }
}


/* Mobile: search stays top-left; lead copy drops; bull stays a viewport watermark */
@media (max-width: 768px) {
    .ab-header-inner {
        padding: 0.75rem 1.5rem 1rem;
    }

    .ab-header-top {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        min-height: 2.15rem;
        gap: 0.5rem;
        overflow: visible;
    }

    .ab-header-left {
        width: auto;
        max-width: 100%;
    }

    .ab-header-lead {
        display: none;
    }

    .ab-header-bull {
        display: none;
    }

    .ab-header-mark {
        display: block;
        position: absolute;
        inset: 0;
        z-index: 0;
        background-image: url("/images/logo_transparent.png");
        background-repeat: no-repeat;
        background-position: center center;
        background-size: auto 100%;
        opacity: 0.42;
        filter: none;
        pointer-events: none;
    }

    .ab-search-toggle {
        display: none;
    }

    .ab-desk-search {
        display: flex;
        position: relative;
        width: var(--ab-search-w);
        max-width: 100%;
        z-index: 2;
        flex: 0 0 auto;
    }

    .ab-overview {
        margin-top: 0.75rem;
        clear: both;
    }
}