@import url("https://fonts.googleapis.com/css2?family=Barlow+Semi+Condensed:wght@500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap");

/* ============================================================
   Color Studio / Phối màu — scoped widget styles
   All rules are namespaced under #cs-app or .cs-dlg to avoid
   colliding with the site theme (Bootstrap 5).
   ============================================================ */

#cs-app {
    --cs-ground: #eef0f1;
    --cs-panel: #ffffff;
    --cs-panel-2: #f5f6f8;
    --cs-ink: #1b1e21;
    --cs-ink-soft: #4a4f55;
    --cs-muted: #7a8087;
    --cs-line: #e0e3e6;
    --cs-line-strong: #cdd2d7;
    --cs-accent: #be4a37;
    --cs-accent-ink: #ffffff;
    --cs-radius: 10px;
    --cs-shadow: 0 1px 2px rgba(20, 24, 28, .06), 0 8px 24px rgba(20, 24, 28, .08);

    color: var(--cs-ink);
    margin: 22px 0 40px;
    font-family: "Barlow", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
    #cs-app {
        --cs-ground: #14171a;
        --cs-panel: #1c2024;
        --cs-panel-2: #23282d;
        --cs-ink: #e9ebed;
        --cs-ink-soft: #b7bcc2;
        --cs-muted: #8c9299;
        --cs-line: #2d333a;
        --cs-line-strong: #3b424a;
        --cs-accent: #e0674f;
        --cs-accent-ink: #1b1013;
        --cs-shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px rgba(0, 0, 0, .45);
    }
}

#cs-app * {
    box-sizing: border-box;
}

#cs-app .cs-head {
    margin-bottom: 16px;
}

#cs-app .cs-title {
    font-family: "Barlow Semi Condensed", sans-serif;
    font-weight: 700;
    font-size: clamp(1.4rem, 1.1rem + 1.4vw, 2rem);
    letter-spacing: .01em;
    margin: 0 0 4px;
    color: var(--cs-ink);
}

#cs-app .cs-sub {
    margin: 0;
    color: var(--cs-muted);
    max-width: 60ch;
    font-size: .95rem;
    line-height: 1.5;
}

/* ---- scene tabs ---- */
#cs-app .cs-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: flex-start;
    margin-bottom: 14px;
}

#cs-app .cs-tabgrp {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 7px;
    flex: 1 1 100%;
}

#cs-app .cs-tabgrp-l {
    font-family: "Barlow", sans-serif;
    font-weight: 600;
    font-size: .8rem;
    color: var(--cs-ink-soft);
}

#cs-app .cs-tabgrp-row {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

#cs-app .cs-tab {
    font: inherit;
    font-size: .82rem;
    cursor: pointer;
    border: 1px solid var(--cs-line-strong);
    background: var(--cs-panel-2);
    color: var(--cs-ink-soft);
    border-radius: 999px;
    padding: 5px 13px;
}

#cs-app .cs-tab[aria-pressed="true"] {
    background: var(--cs-ink);
    color: var(--cs-ground);
    border-color: var(--cs-ink);
}

/* ---- layout ---- */
#cs-app .cs-main {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 16px;
    align-items: start;
}

@media (max-width: 900px) {
    #cs-app .cs-main {
        grid-template-columns: 1fr;
    }
}

#cs-app .cs-stagecol {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 0;
}

#cs-app .cs-stage {
    background: var(--cs-panel);
    border: 1px solid var(--cs-line);
    border-radius: var(--cs-radius);
    box-shadow: var(--cs-shadow);
    overflow: hidden;
    min-height: 180px;
}

#cs-app .cs-stage svg {
    display: block;
    width: 100%;
    height: auto;
}

/* ---- toolbar ---- */
#cs-app .cs-toolbar {
    background: var(--cs-panel);
    border: 1px solid var(--cs-line);
    border-radius: var(--cs-radius);
    box-shadow: var(--cs-shadow);
    padding: 11px 13px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

#cs-app .cs-readout {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

#cs-app .cs-chip {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: 1px solid var(--cs-line-strong);
    background: repeating-conic-gradient(#d7d7d7 0 25%, #ececec 0 50%) 50% / 12px 12px;
    flex: none;
}

#cs-app .cs-meta {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
    min-width: 0;
}

#cs-app .cs-bcode {
    font-family: "IBM Plex Mono", ui-monospace, monospace;
    font-weight: 500;
    font-size: .92rem;
}

#cs-app .cs-bhint {
    color: var(--cs-muted);
    font-size: .78rem;
}

#cs-app .cs-spacer {
    flex: 1 1 auto;
}

#cs-app .cs-btn,
.cs-dlg .cs-btn {
    font-family: "Barlow Semi Condensed", sans-serif;
    font-weight: 600;
    letter-spacing: .03em;
    text-transform: uppercase;
    font-size: .77rem;
    cursor: pointer;
    border-radius: 8px;
    padding: 9px 14px;
    border: 1px solid var(--cs-line-strong);
    background: var(--cs-panel-2);
    color: var(--cs-ink);
    text-decoration: none;
    display: inline-block;
    line-height: 1.1;
}

#cs-app .cs-btn:hover,
.cs-dlg .cs-btn:hover {
    border-color: var(--cs-muted);
}

#cs-app .cs-btn:active,
.cs-dlg .cs-btn:active {
    transform: translateY(1px);
}

#cs-app .cs-btn--primary,
.cs-dlg .cs-btn--primary {
    background: var(--cs-accent);
    border-color: var(--cs-accent);
    color: var(--cs-accent-ink);
}

#cs-app .cs-btn:focus-visible,
#cs-app .cs-swatch:focus-visible,
#cs-app .cs-fchip:focus-visible,
#cs-app .cs-tab:focus-visible,
.cs-dlg .cs-btn:focus-visible {
    outline: 2px solid var(--cs-accent);
    outline-offset: 2px;
}

/* ---- legend ---- */
#cs-app .cs-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 5px 16px;
    padding: 0 2px;
    font-family: "IBM Plex Mono", ui-monospace, monospace;
    font-size: .76rem;
    color: var(--cs-ink-soft);
}

#cs-app .cs-legend b {
    color: var(--cs-muted);
    font-weight: 400;
}

#cs-app .cs-legend .cs-est {
    color: var(--cs-accent);
}

/* ---- palette panel ---- */
#cs-app .cs-palette {
    background: var(--cs-panel);
    border: 1px solid var(--cs-line);
    border-radius: var(--cs-radius);
    box-shadow: var(--cs-shadow);
    position: sticky;
    top: 16px;
    overflow: hidden;
}

#cs-app .cs-palette-h {
    font-family: "Barlow Semi Condensed", sans-serif;
    font-weight: 700;
    font-size: .92rem;
    text-transform: uppercase;
    letter-spacing: .09em;
    margin: 0;
    padding: 12px 14px;
    border-bottom: 1px solid var(--cs-line);
    color: var(--cs-ink);
}

#cs-app .cs-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 11px 12px;
    border-bottom: 1px solid var(--cs-line);
}

#cs-app .cs-fchip {
    font: inherit;
    font-size: .78rem;
    cursor: pointer;
    border: 1px solid var(--cs-line-strong);
    background: var(--cs-panel-2);
    color: var(--cs-ink-soft);
    border-radius: 999px;
    padding: 4px 10px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

#cs-app .cs-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    display: inline-block;
}

#cs-app .cs-fchip[aria-pressed="true"] {
    background: var(--cs-ink);
    color: var(--cs-ground);
    border-color: var(--cs-ink);
}

#cs-app .cs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 9px;
    padding: 13px 12px;
    max-height: 58vh;
    overflow-y: auto;
}

#cs-app .cs-cell {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

#cs-app .cs-swatch {
    appearance: none;
    border: 1px solid rgba(0, 0, 0, .14);
    border-radius: 7px;
    aspect-ratio: 1 / 1;
    cursor: pointer;
    padding: 0;
    width: 100%;
    transition: transform .05s ease;
}

#cs-app .cs-swatch:hover {
    transform: scale(1.05);
}

#cs-app .cs-swatch[aria-pressed="true"] {
    box-shadow: 0 0 0 2px var(--cs-panel), 0 0 0 4px var(--cs-accent);
}

#cs-app .cs-code {
    font-family: "IBM Plex Mono", ui-monospace, monospace;
    font-size: .64rem;
    color: var(--cs-muted);
    text-align: center;
}

#cs-app .cs-disclaimer {
    margin: 14px 2px 0;
    font-size: .78rem;
    color: var(--cs-muted);
}

/* ---- svg region affordances ---- */
#cs-app .cs-region {
    cursor: pointer;
}

#cs-app .cs-region [data-fill] {
    transition: fill .12s ease;
}

#cs-app .cs-region:hover [data-edge] {
    stroke: var(--cs-accent);
    stroke-width: 3;
    paint-order: stroke;
}

/* ---- floating tooltip ---- */
.cs-tip {
    position: fixed;
    pointer-events: none;
    z-index: 4000;
    transform: translate(-50%, -140%);
    background: #1b1e21;
    color: #fff;
    font-family: "Barlow Semi Condensed", sans-serif;
    letter-spacing: .03em;
    font-size: .74rem;
    padding: 3px 8px;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0;
    transition: opacity .1s ease;
}

/* ---- export dialog ---- */
.cs-dlg {
    border: 1px solid var(--cs-line, #e0e3e6);
    border-radius: 10px;
    background: var(--cs-panel, #fff);
    color: var(--cs-ink, #1b1e21);
    box-shadow: 0 20px 60px rgba(10, 12, 14, .35);
    padding: 0;
    max-width: min(92vw, 760px);
    font-family: "Barlow", system-ui, sans-serif;
}

.cs-dlg::backdrop {
    background: rgba(10, 12, 14, .55);
}

.cs-dlg .cs-dlg-h {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    border-bottom: 1px solid var(--cs-line, #e0e3e6);
}

.cs-dlg .cs-dlg-h strong {
    font-family: "Barlow Semi Condensed", sans-serif;
    letter-spacing: .03em;
}

.cs-dlg .cs-dlg-b {
    padding: 15px;
}

.cs-dlg .cs-dlg-b img {
    width: 100%;
    border: 1px solid var(--cs-line, #e0e3e6);
    border-radius: 8px;
    display: block;
}

.cs-dlg .cs-dlg-f {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.cs-dlg .cs-note {
    font-size: .8rem;
    color: var(--cs-muted, #7a8087);
}

@media (prefers-reduced-motion: reduce) {
    #cs-app *,
    .cs-tip {
        transition: none !important;
    }
}