/* =====================================================================
   ARAPL Project Management Portal - stylesheet
   Self-contained: no CDN, no framework. Works offline on an intranet.
   ===================================================================== */

:root {
    /* surfaces and ink */
    --surface:        #ffffff;
    --page:           #f4f5f7;
    --sidebar:        #14243a;
    --sidebar-hover:  #1d3355;
    --sidebar-active: #2a78d6;
    --ink:            #0b0b0b;
    --ink-2:          #52514e;
    --ink-muted:      #898781;
    --line:           #e3e5e9;
    --line-strong:    #c9ccd3;

    /* categorical series (validated: adjacent CVD dE 9.1, normal-vision 19.6) */
    --series-1: #2a78d6;
    --series-2: #eb6834;
    --series-3: #1baf7a;
    --series-4: #eda100;
    --series-5: #e87ba4;

    /* status - reserved, never used as a series colour */
    --good:     #0ca30c;
    --warning:  #fab219;
    --serious:  #ec835a;
    --critical: #d03b3b;

    --radius:   6px;
    --shadow:   0 1px 2px rgba(11,11,11,.06), 0 1px 8px rgba(11,11,11,.04);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--ink);
    background: var(--page);
}

a { color: var(--series-1); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { margin: 0 0 .5rem; font-weight: 600; line-height: 1.25; }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1rem; }

/* ---------------------------------------------------------------
   Shell
   --------------------------------------------------------------- */

.shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 232px;
    flex: 0 0 232px;
    background: var(--sidebar);
    color: #cfd8e6;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.brand {
    padding: 18px 20px 14px;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.brand .brand-name { color: #fff; font-size: 1.05rem; font-weight: 700; letter-spacing: .02em; }
.brand .brand-sub { font-size: .72rem; text-transform: uppercase; letter-spacing: .09em; color: #7f93b0; }

.nav { padding: 10px 0; flex: 1; }
.nav-group-label {
    padding: 14px 20px 6px;
    font-size: .68rem;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: #6d81a0;
}
.nav a {
    display: block;
    padding: 8px 20px;
    color: #cfd8e6;
    border-left: 3px solid transparent;
    font-size: .9rem;
}
.nav a:hover { background: var(--sidebar-hover); text-decoration: none; color: #fff; }
.nav a.active { background: var(--sidebar-hover); border-left-color: var(--sidebar-active); color: #fff; font-weight: 600; }

.sidebar-foot {
    padding: 12px 20px;
    border-top: 1px solid rgba(255,255,255,.08);
    font-size: .78rem;
    color: #7f93b0;
}

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: 10px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 20;
}
.topbar .page-title { font-weight: 600; font-size: 1.05rem; }
.topbar .spacer { flex: 1; }
.topbar .who { font-size: .85rem; color: var(--ink-2); }
.topbar .who strong { color: var(--ink); }

.content { padding: 20px 24px 48px; }

/* ---------------------------------------------------------------
   Cards, grid
   --------------------------------------------------------------- */

.card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 18px;
}
.card-head {
    padding: 12px 16px;
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    gap: 12px;
}
.card-head h2, .card-head h3 { margin: 0; }
.card-head .spacer { flex: 1; }
.card-body { padding: 16px; }
.card-body.tight { padding: 0; }

.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 1100px) {
    .grid.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid.cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
    .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; }
    .sidebar { display: none; }
}

/* ---------------------------------------------------------------
   Stat tiles
   --------------------------------------------------------------- */

.stat {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 14px 16px;
    box-shadow: var(--shadow);
}
.stat .label { font-size: .78rem; color: var(--ink-2); text-transform: uppercase; letter-spacing: .06em; }
.stat .value { font-size: 1.9rem; font-weight: 600; line-height: 1.1; margin-top: 4px; }
.stat .note { font-size: .8rem; color: var(--ink-muted); margin-top: 2px; }
.stat.alert .value { color: var(--critical); }
.stat.warn .value { color: #b07600; }

/* ---------------------------------------------------------------
   Tables
   --------------------------------------------------------------- */

table.grid-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .875rem;
}
table.grid-table th {
    text-align: left;
    font-weight: 600;
    color: var(--ink-2);
    background: #fafbfc;
    border-bottom: 1px solid var(--line);
    padding: 9px 12px;
    white-space: nowrap;
}
table.grid-table td {
    padding: 9px 12px;
    border-bottom: 1px solid var(--line);
    vertical-align: middle;
}
table.grid-table tbody tr:hover { background: #f7f9fc; }
table.grid-table td.num, table.grid-table th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.grid-table .empty { text-align: center; color: var(--ink-muted); padding: 28px 12px; }
.table-wrap { overflow-x: auto; }

.wbs-indent-1 { padding-left: 22px !important; }
.wbs-indent-2 { padding-left: 44px !important; }
.wbs-indent-3 { padding-left: 66px !important; }
.wbs-indent-4 { padding-left: 88px !important; }
.row-summary td { background: #fbfcfd; font-weight: 600; }

/* ---------------------------------------------------------------
   Pills and badges
   --------------------------------------------------------------- */

.pill {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: .75rem;
    font-weight: 600;
    line-height: 1.5;
    white-space: nowrap;
    border: 1px solid transparent;
}
.pill-idle     { background: #eef0f3; color: #4b5563; border-color: #dfe3e8; }
.pill-progress { background: #e6f0fc; color: #1a5aa6; border-color: #cbdff8; }
.pill-done     { background: #e4f6e4; color: #0a7a0a; border-color: #c6ecc6; }
.pill-hold     { background: #fdf1dc; color: #8a5b00; border-color: #f7e0b5; }
.pill-cancel   { background: #f1f2f4; color: #6b7280; border-color: #e0e2e6; text-decoration: line-through; }
.pill-late     { background: #fbe6e6; color: #a32424; border-color: #f3cccc; }

.health { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: .8rem; }
.health .dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.health-green  .dot { background: var(--good); }
.health-amber  .dot { background: var(--warning); }
.health-red    .dot { background: var(--critical); }
.health-green  { color: #0a7a0a; }
.health-amber  { color: #8a5b00; }
.health-red    { color: #a32424; }

.prio-1 { color: var(--critical); font-weight: 600; }
.prio-2 { color: #b56221; font-weight: 600; }
.prio-3 { color: var(--ink-2); }
.prio-4 { color: var(--ink-muted); }

.overdue-flag { color: var(--critical); font-weight: 600; }

/* ---------------------------------------------------------------
   Progress bars
   --------------------------------------------------------------- */

.progress {
    position: relative;
    height: 8px;
    background: #eceef2;
    border-radius: 999px;
    overflow: hidden;
    min-width: 90px;
}
.progress > span {
    display: block;
    height: 100%;
    background: var(--series-1);
    border-radius: 999px;
}
.progress.done > span { background: var(--good); }
.progress.late > span { background: var(--critical); }
.progress-row { display: flex; align-items: center; gap: 8px; }
.progress-row .pct { font-size: .78rem; color: var(--ink-2); font-variant-numeric: tabular-nums; min-width: 38px; text-align: right; }

.plan-marker {
    position: absolute;
    top: -3px;
    width: 2px;
    height: 14px;
    background: var(--ink-2);
}

/* ---------------------------------------------------------------
   Forms
   --------------------------------------------------------------- */

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 20px; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 760px) { .form-grid { grid-template-columns: 1fr; } }

.field label {
    display: block;
    font-size: .8rem;
    font-weight: 600;
    color: var(--ink-2);
    margin-bottom: 4px;
}
.field input[type=text],
.field input[type=password],
.field input[type=email],
.field input[type=number],
.field input[type=date],
.field select,
.field textarea,
.inline-form input, .inline-form select {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid var(--line-strong);
    border-radius: 4px;
    font: inherit;
    color: var(--ink);
    background: #fff;
}
.field textarea { min-height: 90px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
    outline: none;
    border-color: var(--series-1);
    box-shadow: 0 0 0 3px rgba(42,120,214,.15);
}
.field .hint { font-size: .78rem; color: var(--ink-muted); margin-top: 3px; }
.field-check { display: flex; align-items: center; gap: 8px; }
.field-check label { margin: 0; font-weight: 500; color: var(--ink); }

.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: flex-end;
}
.filters .field { min-width: 170px; }
.filters .field.wide { min-width: 260px; }

.form-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    padding-top: 6px;
}

.validation-summary {
    background: #fbe6e6;
    border: 1px solid #f3cccc;
    color: #a32424;
    border-radius: var(--radius);
    padding: 10px 14px;
    margin-bottom: 14px;
    font-size: .875rem;
}
.validation-summary ul { margin: 0; padding-left: 18px; }
.field-error { color: #a32424; font-size: .78rem; display: block; margin-top: 3px; }
.input-validation-error { border-color: #d03b3b !important; }

/* ---------------------------------------------------------------
   Buttons
   --------------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 4px;
    border: 1px solid var(--line-strong);
    background: #fff;
    color: var(--ink);
    font: inherit;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
}
.btn:hover { background: #f4f6f9; text-decoration: none; }
.btn-primary { background: var(--series-1); border-color: var(--series-1); color: #fff; }
.btn-primary:hover { background: #1f66bd; border-color: #1f66bd; }
.btn-danger { background: #fff; border-color: #e6bcbc; color: #a32424; }
.btn-danger:hover { background: #fbe6e6; }
.btn-sm { padding: 4px 9px; font-size: .8rem; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn-link { background: none; border: none; color: var(--series-1); padding: 0; cursor: pointer; font: inherit; }

.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* ---------------------------------------------------------------
   Flash messages
   --------------------------------------------------------------- */

.flash {
    border-radius: var(--radius);
    padding: 10px 14px;
    margin-bottom: 16px;
    font-size: .9rem;
    border: 1px solid;
    display: flex;
    gap: 8px;
    align-items: flex-start;
}
.flash-success { background: #e4f6e4; border-color: #c6ecc6; color: #0a6b0a; }
.flash-error   { background: #fbe6e6; border-color: #f3cccc; color: #a32424; }
.flash .icon { font-weight: 700; }

/* ---------------------------------------------------------------
   Charts
   --------------------------------------------------------------- */

.legend { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 10px; font-size: .82rem; }
.legend .item { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-2); }
.legend .swatch { width: 11px; height: 11px; border-radius: 3px; display: inline-block; }
.legend .count { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; }

.bar-chart { display: flex; flex-direction: column; gap: 9px; }
.bar-chart .row { display: grid; grid-template-columns: 150px 1fr 46px; align-items: center; gap: 10px; font-size: .84rem; }
.bar-chart .track { background: #f0f2f5; border-radius: 4px; height: 16px; position: relative; overflow: hidden; }
.bar-chart .fill { height: 100%; border-radius: 0 4px 4px 0; }
.bar-chart .val { text-align: right; font-variant-numeric: tabular-nums; color: var(--ink-2); }
.bar-chart .name { color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.donut-wrap { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.donut-center { font-size: 1.4rem; font-weight: 600; fill: var(--ink); }
.donut-label  { font-size: .62rem; fill: var(--ink-muted); text-transform: uppercase; letter-spacing: .08em; }

/* ---------------------------------------------------------------
   Gantt
   --------------------------------------------------------------- */

.gantt-shell { display: flex; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.gantt-left { flex: 0 0 320px; border-right: 1px solid var(--line); overflow: hidden; }
.gantt-right { flex: 1; overflow-x: auto; overflow-y: hidden; }

.gantt-head { height: 46px; border-bottom: 1px solid var(--line); background: #fafbfc; display: flex; align-items: flex-end; }
.gantt-left .gantt-head { padding: 0 12px 8px; font-size: .78rem; font-weight: 600; color: var(--ink-2); text-transform: uppercase; letter-spacing: .05em; }

.gantt-row {
    height: 30px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #f0f2f5;
    font-size: .82rem;
    padding: 0 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.gantt-row.summary { font-weight: 600; background: #fbfcfd; }
.gantt-row .wbs { color: var(--ink-muted); font-variant-numeric: tabular-nums; margin-right: 8px; font-size: .76rem; }
.gantt-row a { color: var(--ink); }
.gantt-row a:hover { color: var(--series-1); }

.gantt-canvas { position: relative; }
.gantt-scale { height: 46px; position: relative; border-bottom: 1px solid var(--line); background: #fafbfc; }
.gantt-month { position: absolute; top: 4px; font-size: .74rem; font-weight: 600; color: var(--ink-2); padding-left: 6px; border-left: 1px solid var(--line); height: 18px; }
.gantt-day  { position: absolute; top: 24px; font-size: .68rem; color: var(--ink-muted); width: 22px; text-align: center; }
.gantt-gridline { position: absolute; top: 0; bottom: 0; width: 1px; background: #f0f2f5; }
.gantt-gridline.week { background: #e3e5e9; }
.gantt-today { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--critical); opacity: .55; z-index: 3; }

.gantt-bars { position: relative; }
.gantt-lane { height: 30px; border-bottom: 1px solid #f0f2f5; position: relative; }
.gantt-lane.summary { background: #fbfcfd; }

.gbar {
    position: absolute;
    top: 8px;
    height: 14px;
    border-radius: 4px;
    background: var(--series-1);
    cursor: pointer;
    min-width: 4px;
}
.gbar.summary { background: #35435c; height: 10px; top: 10px; border-radius: 3px; }
.gbar.done { background: var(--good); }
.gbar.late { background: var(--critical); }
.gbar .gfill { position: absolute; left: 0; top: 0; bottom: 0; background: rgba(255,255,255,.42); border-radius: 4px 0 0 4px; }
.gbar .glabel { position: absolute; left: 100%; top: -2px; margin-left: 8px; font-size: .74rem; color: var(--ink-2); white-space: nowrap; }

.gbaseline { position: absolute; top: 24px; height: 3px; background: #b9bec8; border-radius: 2px; }

.gmilestone {
    position: absolute;
    top: 8px;
    width: 14px;
    height: 14px;
    background: var(--series-4);
    transform: rotate(45deg);
    border: 1px solid #b07600;
}
.gmilestone.late { background: var(--critical); border-color: #8f2020; }
.gmilestone.done { background: var(--good); border-color: #086b08; }

.glink { position: absolute; pointer-events: none; }

.gantt-legend { display: flex; gap: 18px; flex-wrap: wrap; font-size: .8rem; color: var(--ink-2); padding: 10px 2px 0; }
.gantt-legend .k { display: inline-flex; align-items: center; gap: 6px; }
.gantt-legend .sw { width: 16px; height: 8px; border-radius: 3px; display: inline-block; }

/* ---------------------------------------------------------------
   Login
   --------------------------------------------------------------- */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(140deg, #14243a 0%, #1d3355 55%, #24507f 100%);
    padding: 24px;
}
.login-card {
    width: 100%;
    max-width: 380px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 18px 48px rgba(0,0,0,.28);
    padding: 30px 30px 26px;
}
.login-card h1 { font-size: 1.25rem; margin-bottom: 2px; }
.login-card .sub { color: var(--ink-2); font-size: .87rem; margin-bottom: 20px; }
.login-card .field { margin-bottom: 14px; }
.login-card .btn { width: 100%; justify-content: center; }
.login-foot { text-align: center; color: #9fb0c8; font-size: .78rem; margin-top: 18px; }

/* ---------------------------------------------------------------
   Misc
   --------------------------------------------------------------- */

.muted { color: var(--ink-muted); }
.small { font-size: .8rem; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.flex { display: flex; }
.flex-gap { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.hidden { display: none; }

.crumbs { font-size: .82rem; color: var(--ink-muted); margin-bottom: 8px; }
.crumbs a { color: var(--ink-2); }

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { padding: 10px 0; border-bottom: 1px solid var(--line); }
.timeline li:last-child { border-bottom: none; }
.timeline .meta { font-size: .78rem; color: var(--ink-muted); }

.pager { display: flex; gap: 6px; align-items: center; padding: 12px 16px; }
.pager a, .pager span {
    padding: 4px 10px;
    border: 1px solid var(--line-strong);
    border-radius: 4px;
    font-size: .82rem;
    color: var(--ink-2);
}
.pager span.current { background: var(--series-1); border-color: var(--series-1); color: #fff; font-weight: 600; }

.week-nav { display: flex; align-items: center; gap: 12px; }
.week-nav .range { font-weight: 600; }

@media print {
    .sidebar, .topbar, .toolbar, .filters, .btn { display: none !important; }
    .content { padding: 0; }
    .card { box-shadow: none; border-color: #ccc; break-inside: avoid; }
}