/* Freightline — dark-first operations dashboard.
 * Direction: Linear-grade near-black slate, hairline borders, one signal-orange
 * accent, mono numerals in data cells. Elevation = lighter surface, no shadows.
 */

:root {
  --bg: #0b0d12;
  --surface: #10131a;
  --surface-2: #161b24;
  --hover: rgba(255, 255, 255, 0.045);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #e6e9ef;
  --text-2: #9aa4b2;
  --text-3: #626d80;
  --accent: #f78e3d;
  --accent-strong: #ff9c4f;
  --accent-dim: rgba(247, 142, 61, 0.14);
  --on-accent: #14100b;
  --green: #2ed3a5;  --green-dim: rgba(46, 211, 165, 0.13);
  --blue: #53b1fd;   --blue-dim: rgba(83, 177, 253, 0.13);
  --amber: #fdb022;  --amber-dim: rgba(253, 176, 34, 0.13);
  --red: #f97066;    --red-dim: rgba(249, 112, 102, 0.14);
  --gray-dim: rgba(154, 164, 178, 0.13);

  /* chart kit theming (cshell-charts reads these) */
  --chart-text: #778193;
  --chart-grid: rgba(255, 255, 255, 0.06);
  --chart-tooltip-bg: #1e2430;
  --chart-tooltip-text: #f2f4f8;
  --chart-c1: #f78e3d;
  --chart-c2: #53b1fd;
  --chart-c3: #2ed3a5;
  --chart-c4: #a48afb;
  --chart-c5: #f97066;
  --chart-c6: #fdb022;

  --font-ui: "Instrument Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --sidebar-w: 232px;
  --radius: 10px;
}

[data-theme="light"] {
  --bg: #f4f5f8;
  --surface: #ffffff;
  --surface-2: #eef0f4;
  --hover: rgba(20, 28, 45, 0.045);
  --border: rgba(20, 28, 45, 0.1);
  --border-strong: rgba(20, 28, 45, 0.2);
  --text: #141c2d;
  --text-2: #4d586c;
  --text-3: #7f8a9e;
  --accent: #e2731c;
  --accent-strong: #c96010;
  --accent-dim: rgba(226, 115, 28, 0.12);
  --on-accent: #ffffff;
  --green: #0e9f6e;  --green-dim: rgba(14, 159, 110, 0.11);
  --blue: #1a73d1;   --blue-dim: rgba(26, 115, 209, 0.1);
  --amber: #b7791f;  --amber-dim: rgba(183, 121, 31, 0.12);
  --red: #d92d20;    --red-dim: rgba(217, 45, 32, 0.1);
  --gray-dim: rgba(77, 88, 108, 0.1);
  --chart-text: #7f8a9e;
  --chart-grid: rgba(20, 28, 45, 0.07);
  --chart-tooltip-bg: #1b2230;
  --chart-tooltip-text: #f2f4f8;
  --chart-c1: #e2731c;
  --chart-c2: #1a73d1;
  --chart-c3: #0e9f6e;
  --chart-c4: #7a5af8;
  --chart-c5: #d92d20;
  --chart-c6: #b7791f;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { color-scheme: dark; }
[data-theme="light"] { color-scheme: light; }

body {
  font-family: var(--font-ui);
  font-size: 13.5px;
  line-height: 1.5;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent-dim); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }

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

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 40;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 16px 14px;
}
.brand svg { flex-shrink: 0; }
.brand-name { font-weight: 650; font-size: 14.5px; letter-spacing: -0.01em; }
.brand-env {
  margin-left: auto; font-family: var(--font-mono); font-size: 10px;
  color: var(--text-3); border: 1px solid var(--border); border-radius: 5px;
  padding: 1px 6px; letter-spacing: 0.04em;
}

.nav { padding: 8px 10px; flex: 1; overflow-y: auto; }
.nav-label {
  font-size: 10.5px; font-weight: 600; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--text-3);
  padding: 16px 8px 6px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 8px; border-radius: 7px;
  color: var(--text-2); font-weight: 500;
  transition: background 0.15s, color 0.15s;
  width: 100%; text-align: left;
}
.nav-item:hover { background: var(--hover); color: var(--text); }
.nav-item.active { background: var(--surface-2); color: var(--text); }
.nav-item.active svg { color: var(--accent); }
.nav-item svg { color: var(--text-3); transition: color 0.15s; }
.nav-item .kbd {
  margin-left: auto; font-family: var(--font-mono); font-size: 10px;
  color: var(--text-3); border: 1px solid var(--border); border-radius: 4px;
  padding: 0 5px;
}

.sidebar-foot { border-top: 1px solid var(--border); padding: 12px 14px; }
.user-chip { display: flex; align-items: center; gap: 10px; }
.avatar {
  width: 28px; height: 28px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #d4562a);
  color: #fff; font-size: 11px; font-weight: 650;
  display: grid; place-items: center;
}
.user-chip .u-name { font-size: 12.5px; font-weight: 550; line-height: 1.2; }
.user-chip .u-role { font-size: 11px; color: var(--text-3); line-height: 1.3; }

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

.topbar {
  height: 54px; flex-shrink: 0;
  display: flex; align-items: center; gap: 12px;
  padding: 0 20px;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 30;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px);
}
.hamburger { display: none; padding: 6px; border-radius: 7px; color: var(--text-2); }
.hamburger:hover { background: var(--hover); color: var(--text); }
.crumb { display: flex; align-items: center; gap: 7px; color: var(--text-3); font-size: 12.5px; }
.crumb b { color: var(--text); font-weight: 550; }
.topbar-search {
  margin-left: auto;
  display: flex; align-items: center; gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 5px 10px; width: 230px;
  color: var(--text-3);
  transition: border-color 0.15s;
}
.topbar-search:focus-within { border-color: var(--border-strong); }
.topbar-search input {
  border: 0; background: none; outline: none; width: 100%;
  font: inherit; font-size: 12.5px; color: var(--text);
}
.topbar-search input::placeholder { color: var(--text-3); }
.topbar-search .kbd {
  font-family: var(--font-mono); font-size: 10px; color: var(--text-3);
  border: 1px solid var(--border); border-radius: 4px; padding: 0 5px; flex-shrink: 0;
}
.icon-btn {
  padding: 6px; border-radius: 7px; color: var(--text-2);
  display: grid; place-items: center;
  transition: background 0.15s, color 0.15s;
}
.icon-btn:hover { background: var(--hover); color: var(--text); }

/* ---------- content ---------- */
.view { padding: 24px 24px 48px; max-width: 1280px; width: 100%; margin: 0 auto; }

.page-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 16px; margin-bottom: 20px; flex-wrap: wrap;
}
.page-head h1 { font-size: 20px; font-weight: 650; letter-spacing: -0.015em; }
.page-head .sub { color: var(--text-3); font-size: 12.5px; margin-top: 2px; }

.seg {
  display: inline-flex; border: 1px solid var(--border); border-radius: 8px;
  background: var(--surface); padding: 2px; gap: 2px;
}
.seg button {
  padding: 4px 12px; border-radius: 6px; font-size: 12px; font-weight: 550;
  color: var(--text-2); transition: background 0.15s, color 0.15s;
}
.seg button:hover { color: var(--text); }
.seg button[aria-pressed="true"] { background: var(--surface-2); color: var(--text); }

.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px; }
.col-3 { grid-column: span 3; } .col-4 { grid-column: span 4; }
.col-6 { grid-column: span 6; } .col-8 { grid-column: span 8; }
.col-12 { grid-column: span 12; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  min-width: 0;
}
.card-head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 14px; gap: 10px;
}
.card-title { font-size: 13px; font-weight: 600; }
.card-note { font-size: 11.5px; color: var(--text-3); }

/* stat cards */
.stat .stat-label { font-size: 12px; color: var(--text-2); font-weight: 500; }
.stat .stat-value {
  font-size: 25px; font-weight: 630; letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums; margin-top: 6px; line-height: 1.1;
}
.stat .stat-delta {
  margin-top: 8px; font-size: 11.5px; font-weight: 550;
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 7px; border-radius: 999px;
}
.stat .stat-delta.up   { color: var(--green); background: var(--green-dim); }
.stat .stat-delta.down { color: var(--red); background: var(--red-dim); }
.stat .stat-delta.flat { color: var(--text-2); background: var(--gray-dim); }
.stat .vs { color: var(--text-3); font-weight: 400; margin-left: 6px; font-size: 11px; }

.chart { min-height: 200px; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; margin: 0 -16px; padding: 0 16px; }
table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
thead th {
  text-align: left; font-size: 10.5px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-3);
  padding: 0 10px; border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
thead th.num { text-align: right; }
th .th-btn {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 8px 0; font: inherit; letter-spacing: inherit;
  text-transform: inherit; color: inherit;
  transition: color 0.15s;
}
th .th-btn:hover { color: var(--text); }
th .arrow { font-size: 8px; opacity: 0; transition: opacity 0.15s; }
th[aria-sort] .arrow { opacity: 1; color: var(--accent); }
tbody td {
  padding: 9px 10px; border-bottom: 1px solid var(--border);
  white-space: nowrap; color: var(--text-2);
}
:root.compact tbody td { padding-top: 5px; padding-bottom: 5px; }
tbody tr { transition: background 0.12s; }
tbody tr:hover { background: var(--hover); }
tbody tr:last-child td { border-bottom: 0; }
td.primary { color: var(--text); font-weight: 550; }
td.num { text-align: right; font-family: var(--font-mono); font-size: 11.5px; }
td.mono { font-family: var(--font-mono); font-size: 11.5px; color: var(--text); }
.route-cell .r-from { color: var(--text); }
.route-cell .r-arrow { color: var(--text-3); margin: 0 4px; }
.route-cell .r-to { color: var(--text); }

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11.5px; font-weight: 550; border-radius: 999px;
  padding: 2px 9px 2px 7px;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge.delivered  { color: var(--green); background: var(--green-dim); }
.badge.in-transit { color: var(--blue); background: var(--blue-dim); }
.badge.pending    { color: var(--text-2); background: var(--gray-dim); }
.badge.delayed    { color: var(--amber); background: var(--amber-dim); }
.badge.exception  { color: var(--red); background: var(--red-dim); }

.mode-tag { display: inline-flex; align-items: center; gap: 6px; color: var(--text-2); }
.mode-tag .swatch { width: 8px; height: 8px; border-radius: 2.5px; }

/* filter bar */
.filter-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 14px;
}
.filter-bar .search {
  display: flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 10px; color: var(--text-3);
  flex: 1; min-width: 180px; max-width: 320px;
  transition: border-color 0.15s;
}
.filter-bar .search:focus-within { border-color: var(--border-strong); }
.filter-bar .search input {
  border: 0; background: none; outline: none; width: 100%;
  font: inherit; font-size: 12.5px; color: var(--text);
}
select {
  font: inherit; font-size: 12.5px; color: var(--text);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 10px; cursor: pointer;
  transition: border-color 0.15s;
}
select:hover { border-color: var(--border-strong); }
.btn-ghost {
  font-size: 12px; font-weight: 550; color: var(--text-2);
  padding: 6px 10px; border-radius: 7px;
  transition: background 0.15s, color 0.15s;
}
.btn-ghost:hover { background: var(--hover); color: var(--text); }
.result-count { margin-left: auto; font-size: 12px; color: var(--text-3); }

.pager {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 12px; font-size: 12px; color: var(--text-3);
}
.pager .pg-btns { display: flex; gap: 6px; }
.pager button {
  border: 1px solid var(--border); border-radius: 7px;
  padding: 4px 12px; font-size: 12px; font-weight: 550; color: var(--text-2);
  transition: background 0.15s, color 0.15s;
}
.pager button:hover:not(:disabled) { background: var(--hover); color: var(--text); }
.pager button:disabled { opacity: 0.4; cursor: default; }

.empty {
  padding: 40px 20px; text-align: center; color: var(--text-3); font-size: 13px;
}
.empty b { color: var(--text-2); display: block; margin-bottom: 4px; font-size: 14px; }

/* ---------- settings ---------- */
.settings-grid { display: grid; gap: 14px; max-width: 720px; }
.setting-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; padding: 13px 0; border-bottom: 1px solid var(--border);
}
.setting-row:last-child { border-bottom: 0; }
.setting-row .s-label { font-weight: 550; font-size: 13px; }
.setting-row .s-desc { color: var(--text-3); font-size: 12px; margin-top: 2px; max-width: 380px; }

.switch {
  position: relative; width: 36px; height: 21px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border-strong);
  transition: background 0.18s, border-color 0.18s; flex-shrink: 0;
}
.switch::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--text-2); transition: transform 0.18s, background 0.18s;
}
.switch[aria-checked="true"] { background: var(--accent); border-color: var(--accent); }
.switch[aria-checked="true"]::after { transform: translateX(15px); background: var(--on-accent); }

.text-input {
  font: inherit; font-size: 12.5px; color: var(--text);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 10px; width: 200px;
  transition: border-color 0.15s;
}
.text-input:focus { outline: none; border-color: var(--accent); }

/* ---------- 404 ---------- */
.err-page {
  min-height: 100vh; display: grid; place-items: center; text-align: center; padding: 24px;
}
.err-page .code { font-family: var(--font-mono); font-size: 13px; color: var(--accent); letter-spacing: 0.1em; }
.err-page h1 { font-size: 26px; font-weight: 650; margin: 10px 0 6px; }
.err-page p { color: var(--text-2); margin-bottom: 20px; }
.btn-primary {
  display: inline-block; background: var(--accent); color: var(--on-accent);
  font-weight: 600; font-size: 13px; padding: 8px 18px; border-radius: 8px;
  transition: background 0.15s;
}
.btn-primary:hover { background: var(--accent-strong); }

/* ---------- drawer / scrim (mobile) ---------- */
.scrim {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.55);
  opacity: 0; pointer-events: none; transition: opacity 0.2s; z-index: 35;
}
.scrim.show { opacity: 1; pointer-events: auto; }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .col-3 { grid-column: span 6; }
  .col-4 { grid-column: span 12; }
  .col-6, .col-8 { grid-column: span 12; }
}
@media (max-width: 760px) {
  .sidebar {
    position: fixed; left: 0; top: 0;
    transform: translateX(-104%);
    transition: transform 0.22s ease;
    box-shadow: 8px 0 32px rgba(0, 0, 0, 0.4);
  }
  .sidebar.open { transform: translateX(0); }
  .hamburger { display: grid; }
  .topbar { padding: 0 14px; }
  .topbar-search { width: auto; flex: 1; max-width: 260px; }
  .topbar-search .kbd { display: none; }
  .crumb { display: none; }
  .view { padding: 16px 14px 40px; }
  .col-3 { grid-column: span 12; }
  .page-head h1 { font-size: 18px; }
  .setting-row { flex-direction: row; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}