/* ================================================================
   Codenzia Gantt — Custom SVG Gantt Chart
   ================================================================ */

/* ── Theme tokens (light defaults) ── */
:root {
    --cg-bg: #ffffff;
    --cg-row-odd: #fdfdfd;
    --cg-row-even: #f9fafb;
    --cg-header-bg: #ffffff;
    --cg-border: #e5e7eb;
    --cg-tick: #f3f3f3;
    --cg-tick-thick: #e5e7eb;
    --cg-text-primary: #171717;
    --cg-text-muted: #7c7c7c;
    --cg-text-on-bar: #ffffff;
    --cg-today-line: #3B82F6;
    --cg-weekend-fill: rgba(0, 0, 0, 0.02);
    --cg-arrow-color: #d1d5db;
    --cg-arrow-dot: #d1d5db;
    --cg-parent-line-color: #d1d5db;
    --cg-parent-dot-color: #d1d5db;
    --cg-dep-arrow-color: #6b7280;
    --cg-dep-arrowhead-color: #6b7280;
    --cg-progress-bg: rgba(0, 0, 0, 0.1);
    --cg-ignored-hatch: grey;
}

/* ── Dark theme ── */
.dark {
    --cg-bg: #25282E;
    --cg-row-odd: #21242A;
    --cg-row-even: #25282E;
    --cg-header-bg: #25282E;
    --cg-border: #2E3239;
    --cg-tick: #2B2E34;
    --cg-tick-thick: #2E3239;
    --cg-text-primary: #e5e7eb;
    --cg-text-muted: #919EAB;
    --cg-text-on-bar: #ffffff;
    --cg-today-line: #3B82F6;
    --cg-weekend-fill: rgba(255, 255, 255, 0.02);
    --cg-arrow-color: #4b5563;
    --cg-arrow-dot: #4b5563;
    --cg-parent-line-color: #4b5563;
    --cg-parent-dot-color: #4b5563;
    --cg-dep-arrow-color: #9ca3af;
    --cg-dep-arrowhead-color: #9ca3af;
    --cg-progress-bg: rgba(255, 255, 255, 0.08);
    --cg-ignored-hatch: #555;
}

/* ── Container ── */
.cg-container {
    position: relative;
    overflow: visible;
    border-radius: 0;
    background: var(--cg-bg);
    width: fit-content;
    min-width: 100%;
}

.cg-container:active {
    cursor: grabbing;
}

/* ── SVG root ── */
.cg-gantt {
    user-select: none;
    overflow: visible;
}

/* ── Grid ── */
.cg-grid-bg {
    fill: var(--cg-bg);
}

.cg-row {
    fill: var(--cg-row-odd);
}

.cg-row-even {
    fill: var(--cg-row-even);
}

.cg-tick {
    stroke: var(--cg-tick);
    stroke-width: 0.4;
}

.cg-tick-thick {
    stroke: var(--cg-tick-thick);
    stroke-width: 0.7;
}

.cg-row-line {
    stroke: var(--cg-tick);
    stroke-width: 0.3;
}

/* ── Headers (DOM divs) ── */
.cg-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--cg-header-bg);
    border-bottom: 1px solid var(--cg-border);
    overflow: hidden;
    user-select: none;
}

.cg-upper-header {
    position: relative;
    height: 45px;
}

.cg-lower-header {
    position: relative;
    height: 30px;
}

.cg-upper-text {
    position: absolute;
    font-size: 14px;
    font-weight: 600;
    color: var(--cg-text-primary);
    white-space: nowrap;
    padding: 0 8px;
    line-height: 45px;
}

.cg-upper-text.cg-current-upper {
    color: var(--cg-today-line);
}

.cg-lower-text {
    position: absolute;
    font-size: 12px;
    font-weight: 400;
    color: var(--cg-text-muted);
    white-space: nowrap;
    text-align: center;
    line-height: 30px;
}

.cg-lower-text.cg-current-date {
    color: var(--cg-text-primary);
    font-weight: 600;
}

/* ── Highlights ── */
.cg-today-line-svg {
    stroke: var(--cg-today-line);
    stroke-width: 1.5;
}

.cg-today-line {
    position: absolute;
    width: 1px;
    background: var(--cg-today-line);
    z-index: 2;
    pointer-events: none;
}

.cg-today-dot {
    position: absolute;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--cg-today-line);
    z-index: 3;
    pointer-events: none;
}

.cg-weekend {
    fill: var(--cg-weekend-fill);
}

.cg-ignored {
    fill: url(#cg-hatch);
    opacity: 0.5;
}

/* ── Bars ── */
.cg-bar-group {
    cursor: pointer;
}

.cg-bar-group:hover .cg-bar {
    filter: brightness(1.15);
}

.cg-bar {
    transition: filter 0.15s ease;
}

.cg-bar-progress {
    pointer-events: none;
}

.cg-bar-label {
    fill: var(--cg-text-on-bar);
    font-size: 12px;
    font-weight: 600;
    dominant-baseline: central;
    pointer-events: none;
}

.cg-bar-avatar {
    pointer-events: none;
}

/* ── Parent-child bracket connectors ── */
.cg-parent-line {
    stroke: var(--cg-parent-line-color);
    stroke-width: 1.2;
}

.cg-parent-dot {
    fill: var(--cg-parent-dot-color);
}

/* ── Task-to-task dependency arrows ── */
.cg-dep-arrow {
    fill: none;
    stroke: var(--cg-dep-arrow-color);
    stroke-width: 1.5;
}

.cg-arrowhead-fill {
    fill: var(--cg-dep-arrowhead-color);
}

/* ── Date range highlight on hover ── */
.cg-date-highlight {
    position: absolute;
    height: 100%;
    background: var(--cg-today-line);
    opacity: 0.08;
    border-radius: 4px;
    pointer-events: none;
    display: none;
}

.cg-bar-group:hover ~ .cg-date-highlight,
.cg-date-highlight.cg-visible {
    display: block;
}

/* ── Scrollbar styling ── */
.cg-container::-webkit-scrollbar {
    height: 8px;
}

.cg-container::-webkit-scrollbar-track {
    background: var(--cg-bg);
}

.cg-container::-webkit-scrollbar-thumb {
    background: var(--cg-tick-thick);
    border-radius: 4px;
}

.cg-container::-webkit-scrollbar-thumb:hover {
    background: var(--cg-text-muted);
}