/* =============================================
   Segmentation Dashboard — Scoped Styles
   Uses MD7 design tokens from the host app.css
   ============================================= */

.seg-wrap { max-width: 1500px; margin: 0 auto; padding: 36px 32px 80px; }

/* ============ Header ============ */
header.seg-top {
    display: flex; align-items: flex-end; justify-content: space-between; gap: 40px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--md7-fog);
    margin-bottom: 36px;
}
.seg-brand-row { display: flex; align-items: center; gap: 22px; }
.seg-brand-text .seg-eyebrow {
    font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--md7-orange); font-weight: var(--fw-semibold);
    margin-bottom: 6px;
}
.seg-brand-text h1 {
    font-size: 32px; font-weight: var(--fw-bold);
    letter-spacing: -0.02em; line-height: 1.05;
    color: var(--md7-black); margin: 0;
}
.seg-brand-text .seg-sub {
    font-size: 14px; color: var(--md7-slate); margin-top: 4px;
}

.seg-stats { display: flex; gap: 0; }
.seg-stats-item {
    padding: 4px 22px;
    border-left: 1px solid var(--md7-fog);
}
.seg-stats-item:first-child { border-left: 0; padding-left: 0; }
.seg-stats-num {
    font-size: 28px; font-weight: var(--fw-bold);
    line-height: 1; letter-spacing: -0.02em;
    color: var(--md7-black);
}
.seg-stats-num em { color: var(--md7-orange); font-style: normal; }
.seg-stats-lab {
    font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--md7-slate); margin-top: 8px;
    font-weight: var(--fw-semibold);
}

/* ============ Treemap selector ============ */
.seg-controls {
    background: var(--md7-white);
    border-radius: 0 var(--radius-xl) 0 0;
    padding: 18px 24px;
    margin-bottom: 12px;
    display: flex; align-items: center; gap: 24px;
    flex-wrap: wrap;
}
.seg-controls-label {
    font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--md7-orange); font-weight: var(--fw-semibold);
}
.seg-btn-group { display: flex; gap: 6px; flex-wrap: wrap; }
.seg-btn {
    background: transparent; color: var(--md7-graphite);
    border: 1px solid var(--md7-fog);
    border-radius: 999px;
    padding: 8px 16px;
    font-family: inherit; font-size: 13px;
    font-weight: var(--fw-semibold);
    cursor: pointer;
    transition: color var(--dur-base) var(--ease-out),
                background var(--dur-base) var(--ease-out),
                border-color var(--dur-base) var(--ease-out);
}
.seg-btn:hover { color: var(--md7-orange); border-color: var(--md7-orange); }
.seg-btn.active {
    background: var(--md7-orange); color: var(--md7-white);
    border-color: var(--md7-orange);
}

/* ============ Grid ============ */
.seg-grid {
    display: grid;
    grid-template-columns: 240px repeat(3, 1fr) 1.1fr;
    grid-template-rows: auto;
    grid-auto-rows: 220px;
    gap: 10px;
}

/* Row dimension corner */
.seg-corner {
    background: var(--md7-white);
    border-radius: var(--radius-xl) 0 0 0;
    padding: 18px 20px;
    display: flex; flex-direction: column; gap: 10px;
    justify-content: center;
}
.seg-corner-label {
    font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--md7-orange); font-weight: var(--fw-semibold);
}
.seg-corner-select {
    appearance: none;
    background: var(--md7-paper);
    border: 1px solid var(--md7-fog);
    border-radius: 0;
    padding: 11px 36px 11px 14px;
    font-family: inherit;
    font-size: 16px;
    font-weight: var(--fw-bold);
    color: var(--md7-black);
    letter-spacing: -0.01em;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%23FF6720' d='M5 6L0 0h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    transition: border-color var(--dur-base) var(--ease-out);
}
.seg-corner-select:hover { border-color: var(--md7-orange); }
.seg-corner-select:focus { outline: none; border-color: var(--md7-orange); }

/* Column headers */
.seg-col-head {
    background: var(--md7-white);
    padding: 18px 20px 16px;
    position: relative;
    overflow: hidden;
    display: flex; align-items: flex-end; justify-content: space-between; gap: 16px;
}
.seg-col-head[data-bucket="Total"] { border-radius: 0 var(--radius-xl) 0 0; }
.seg-col-head::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 4px;
    background: var(--md7-navy);
}
.seg-col-meta .seg-col-eyebrow {
    font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
    font-weight: var(--fw-semibold);
    margin-bottom: 6px;
    display: block;
    color: var(--md7-navy);
}
.seg-col-head h2 {
    margin: 0;
    font-size: 22px; font-weight: var(--fw-bold);
    letter-spacing: -0.015em; line-height: 1.05;
    color: var(--md7-black);
}
.seg-col-count {
    font-size: 40px; font-weight: var(--fw-bold);
    line-height: 1; letter-spacing: -0.025em;
    color: var(--md7-navy);
}

/* Row headers */
.seg-row-head {
    background: var(--md7-white);
    padding: 16px 20px;
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.seg-row-name {
    font-size: 15px; font-weight: var(--fw-semibold);
    color: var(--md7-black);
    letter-spacing: -0.005em;
}
.seg-row-count {
    font-size: 22px; font-weight: var(--fw-bold);
    letter-spacing: -0.02em;
    color: var(--md7-orange);
    line-height: 1;
}

/* Data cells */
.seg-cell {
    background: var(--md7-white);
    padding: 12px;
    position: relative;
    overflow: hidden;
}
.seg-cell-empty {
    background:
        repeating-linear-gradient(45deg,
            var(--md7-white) 0, var(--md7-white) 6px,
            var(--md7-paper) 6px, var(--md7-paper) 12px);
    display: flex; align-items: center; justify-content: center;
    font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--md7-stone); font-weight: var(--fw-semibold);
}
.seg-cell-meta {
    position: absolute; top: 10px; left: 14px;
    font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--md7-slate); font-weight: var(--fw-semibold);
    z-index: 2; pointer-events: none;
}
.seg-cell-total {
    position: absolute; top: 10px; right: 14px;
    font-size: 12px; font-weight: var(--fw-bold);
    color: var(--md7-black); letter-spacing: -0.01em;
    z-index: 2; pointer-events: none;
}
.seg-cell .seg-tm { position: absolute; inset: 30px 12px 12px 12px; }

/* Treemap rectangles */
.seg-tm-rect {
    position: absolute;
    overflow: hidden;
    cursor: pointer;
    transition: filter var(--dur-base) var(--ease-out);
    box-shadow: inset 0 0 0 1px var(--md7-white);
}
.seg-tm-rect:hover { filter: brightness(0.94); z-index: 10; }
.seg-tm-lbl {
    position: absolute; inset: 5px 7px;
    font-family: inherit;
    font-size: 11px; font-weight: var(--fw-semibold);
    line-height: 1.2;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    pointer-events: none;
}
.seg-tm-lbl small {
    display: block;
    font-weight: var(--fw-regular);
    font-size: 10px;
    opacity: 0.78;
    margin-top: 1px;
}

/* Total column & total row */
.seg-cell-is-total,
.seg-row-head-total {
    background: var(--md7-paper);
}
.seg-row-head-total .seg-row-name {
    font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--md7-orange); font-weight: var(--fw-semibold);
}
.seg-row-head-total .seg-row-count {
    font-size: 26px; color: var(--md7-black);
}
.seg-cell-is-total .seg-cell-meta {
    color: var(--md7-orange);
}

/* Corner radius bookends */
.seg-grid > .seg-row-head-total { border-radius: 0 0 0 var(--radius-xl); }
.seg-grid > .seg-cell-is-grand-total { border-radius: 0 0 var(--radius-xl) 0; }

/* ============ Tooltip ============ */
#seg-tooltip {
    position: fixed; pointer-events: none; z-index: 1000;
    background: var(--md7-navy); color: var(--md7-white);
    border-radius: 0 var(--radius-md) 0 var(--radius-md);
    padding: 12px 14px;
    font-size: 12px; line-height: 1.5;
    max-width: 280px;
    opacity: 0; transition: opacity 140ms var(--ease-out);
    font-family: var(--font-sans);
}
#seg-tooltip.seg-tip-show { opacity: 1; }
.seg-tip-ttl {
    font-weight: var(--fw-bold);
    font-size: 13px; margin-bottom: 6px;
    color: var(--md7-white); letter-spacing: -0.005em;
}
.seg-tip-row {
    display: flex; justify-content: space-between; gap: 16px;
    color: var(--md7-sky);
}
.seg-tip-row b {
    color: var(--md7-white); font-weight: var(--fw-bold);
}

/* ============ Legend ============ */
.seg-legend {
    margin-top: 18px;
    background: var(--md7-white);
    padding: 18px 22px;
    display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
}
.seg-legend-title {
    font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--md7-orange); font-weight: var(--fw-semibold);
    margin-right: 8px;
}
.seg-legend-item {
    display: flex; align-items: center; gap: 8px;
    font-size: 13px; color: var(--md7-graphite);
}
.seg-legend-swatch {
    width: 14px; height: 14px;
    border: 1px solid var(--md7-fog);
    display: inline-block;
}

/* ============ Responsive ============ */
@media (max-width: 1100px) {
    .seg-grid { grid-template-columns: 200px repeat(3, 1fr) 1.1fr; }
    header.seg-top { flex-direction: column; align-items: flex-start; gap: 24px; }
}