/* ============================================================
   Design tokens
   Subject: tunnel lighting control-room tooling. Dark control
   panel + warm amber signal-lamp accent (DALI/tunnel-lamp cue),
   cool paper background (not cream), small "signal dot" status
   indicators as the recurring signature element.
   ============================================================ */
:root {
    --ink:        #1B2430;
    --ink-soft:    #4B5768;
    --paper:      #F1F4F7;
    --panel:      #FFFFFF;
    --line:       #DEE3E9;
    --slate:      #1D2634;
    --slate-2:    #262F40;
    --slate-line: #333F54;
    --signal:     #FFB020;
    --signal-deep:#C97C00;
    --signal-ink: #4A2E00;
    --ok:         #1E8E5A;
    --ok-bg:      #E7F7EF;
    --warn:       #B8860B;
    --warn-bg:    #FFF3D6;
    --danger:     #D64545;
    --danger-bg:  #FDECEC;
    --font-display: 'Space Grotesk', 'Inter', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;
}

* { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; }
body {
    margin: 0;
    font-family: var(--font-body);
    background: var(--paper);
    color: var(--ink);
    font-size: 14.5px;
}
:focus-visible { outline: 2px solid var(--signal-deep); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }

h1, h2, h3 { font-family: var(--font-display); letter-spacing: -0.01em; }
h1 { font-size: 1.5rem; font-weight: 700; margin: 0 0 18px; color: var(--ink); }
h2 { font-size: 1.05rem; font-weight: 600; margin-top: 36px; color: var(--ink); }
h3 { font-size: 0.85rem; font-weight: 600; margin: 0 0 14px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.04em; }

.mono { font-family: var(--font-mono); font-size: 0.92em; }

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

.sidebar {
    width: 216px;
    flex-shrink: 0;
    background: linear-gradient(180deg, var(--slate) 0%, var(--slate-2) 100%);
    color: #C9D2E0;
    display: flex;
    flex-direction: column;
    padding: 20px 14px;
    position: sticky;
    top: 0;
    height: 100vh;
}
.sidebar-brand { display: flex; align-items: center; gap: 10px; padding: 4px 6px 22px; }
.signal-mark { display: flex; align-items: center; justify-content: center; }
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: 1.02rem; color: #fff; line-height: 1.1; }
.brand-sub { font-size: 0.7rem; color: #8B96AB; margin-top: 2px; }

.side-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.side-nav a {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 10px; border-radius: 7px;
    color: #AEB8CA; text-decoration: none; font-size: 0.88rem; font-weight: 500;
    transition: background 0.12s, color 0.12s;
}
.side-nav a svg { width: 17px; height: 17px; flex-shrink: 0; opacity: 0.85; }
.side-nav a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.side-nav a.active { background: rgba(255,176,32,0.14); color: var(--signal); }
.side-nav a.active svg { opacity: 1; }
.side-nav-divider {
    font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em;
    color: #6B7690; margin: 16px 10px 4px;
}

.sidebar-user { border-top: 1px solid var(--slate-line); padding-top: 14px; margin-top: 10px; }
.user-name { font-size: 0.85rem; font-weight: 600; color: #fff; display: flex; align-items: center; gap: 6px; }
.admin-chip {
    font-size: 0.62rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em;
    background: var(--signal); color: var(--signal-ink); padding: 1px 6px; border-radius: 8px;
}
.logout-link { font-size: 0.78rem; color: #8B96AB; text-decoration: none; }
.logout-link:hover { color: var(--signal); }

.main-col { flex: 1; min-width: 0; }
.container { max-width: 1180px; margin: 0 auto; padding: 30px 34px 60px; }

/* ---------- Signal dot: the recurring signature element ---------- */
.dot {
    display: inline-block; width: 8px; height: 8px; border-radius: 50%;
    background: #C6CCD6; flex-shrink: 0; vertical-align: middle;
    box-shadow: 0 0 0 3px rgba(0,0,0,0.03);
}
.dot-ok { background: var(--ok); box-shadow: 0 0 0 3px rgba(30,142,90,0.14); }
.dot-warn { background: var(--warn); box-shadow: 0 0 0 3px rgba(184,134,11,0.14); }
.dot-fail { background: var(--danger); box-shadow: 0 0 0 3px rgba(214,69,69,0.14); }
.dot-progress { background: var(--signal); box-shadow: 0 0 0 3px rgba(255,176,32,0.16); }
.dot-todo { background: #9AA5B5; }
.dot-loading { background: #C6CCD6; animation: pulse 1.3s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 0.4; } 50% { opacity: 1; } }

/* ---------- Forms & cards ---------- */
.card {
    background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
    padding: 22px 24px; margin-bottom: 26px; max-width: 720px;
    box-shadow: 0 1px 2px rgba(20,30,50,0.04);
}

label { display: block; font-size: 0.78rem; font-weight: 500; color: var(--ink-soft); margin: 14px 0 5px; }
.checkbox-label { display: flex; align-items: center; gap: 8px; font-size: 0.88rem; color: var(--ink); font-weight: 400; }
.checkbox-label input { width: auto; }

input[type=text], input[type=number], input[type=date], input[type=password], select, textarea {
    width: 100%; padding: 9px 11px; border: 1px solid var(--line); border-radius: 7px;
    font-size: 0.92rem; font-family: var(--font-body); background: #FCFDFE; color: var(--ink);
    transition: border-color 0.12s, box-shadow 0.12s;
}
input:focus, select:focus, textarea:focus {
    border-color: var(--signal-deep); box-shadow: 0 0 0 3px rgba(255,176,32,0.15); outline: none;
}
textarea { resize: vertical; font-family: var(--font-body); }

.form-row { display: flex; gap: 16px; }
.form-row > div { flex: 1; }

button { font-family: var(--font-body); }
.btn-primary, .btn-secondary {
    cursor: pointer; border: none; border-radius: 7px; padding: 10px 18px;
    font-size: 0.88rem; font-weight: 600; transition: transform 0.05s, background 0.12s;
}
.btn-primary { background: var(--signal); color: var(--signal-ink); margin-top: 18px; }
.btn-primary:hover { background: #FFC24D; }
.btn-primary:active { transform: translateY(1px); }
.btn-secondary { background: #EDF0F5; color: var(--ink); }
.btn-secondary:hover { background: #E2E7EE; }
.link-btn { background: none; border: none; color: var(--signal-deep); padding: 0; text-decoration: underline; font-size: 0.82rem; cursor: pointer; font-family: var(--font-body); }
.link-btn:hover { color: var(--ink); }

.support-block, .jira-block { border: 1px solid var(--line); border-radius: 9px; padding: 14px 18px; margin-top: 18px; background: #FBFCFD; }
.jira-block legend { font-size: 0.78rem; font-weight: 600; color: var(--ink-soft); padding: 0 6px; text-transform: uppercase; letter-spacing: 0.03em; }
.support-fields { margin-top: 10px; }

.jira-results { max-height: 230px; overflow-y: auto; margin-top: 8px; }
.jira-result-item { padding: 9px 10px; border: 1px solid var(--line); border-radius: 7px; margin-bottom: 5px; cursor: pointer; font-size: 0.85rem; background: #fff; transition: background 0.1s, border-color 0.1s; }
.jira-result-item:hover { background: #FFF8EB; border-color: var(--signal); }
.jira-selected { margin-top: 10px; padding: 9px 12px; background: #FFF8EB; border: 1px solid #FFE3A8; border-radius: 7px; font-size: 0.88rem; }
.jira-error { color: var(--danger); font-size: 0.83rem; }

details#jira-create-block { margin-top: 12px; }
details#jira-create-block summary { cursor: pointer; font-size: 0.85rem; color: var(--signal-deep); font-weight: 500; }
details#jira-create-block[open] summary { margin-bottom: 8px; }

/* ---------- Tables ---------- */
.data-table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; box-shadow: 0 1px 2px rgba(20,30,50,0.04); }
.data-table th, .data-table td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; font-size: 0.85rem; }
.data-table th { background: #F6F8FA; color: var(--ink-soft); font-weight: 600; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.03em; }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: #FCFAF4; }
.inactive-row { opacity: 0.45; }

.status-badge { display: inline-block; font-size: 0.68rem; font-weight: 600; padding: 2px 7px; border-radius: 10px; margin-left: 5px; white-space: nowrap; }
.status-ok { background: var(--ok-bg); color: var(--ok); }
.status-warn { background: var(--warn-bg); color: var(--warn); }
.status-fail { background: var(--danger-bg); color: var(--danger); }

/* ---------- Alerts ---------- */
.alert { padding: 11px 15px; border-radius: 8px; margin-bottom: 18px; font-size: 0.88rem; }
.alert-error { background: var(--danger-bg); color: var(--danger); border: 1px solid #F7C9C9; }
.alert-success { background: var(--ok-bg); color: var(--ok); border: 1px solid #B9E7CE; }

.muted { color: var(--ink-soft); }
.small { font-size: 0.8rem; }

/* ---------- Login page ---------- */
.auth-page {
    display: flex; align-items: center; justify-content: center; min-height: 100vh;
    background:
        radial-gradient(circle at 20% 15%, rgba(255,176,32,0.10), transparent 40%),
        linear-gradient(180deg, var(--slate) 0%, var(--slate-2) 100%);
}
.auth-box {
    background: var(--panel); border-radius: 14px; padding: 38px 36px; width: 330px;
    box-shadow: 0 20px 50px rgba(10,15,25,0.35);
}
.auth-box h1 { margin-bottom: 4px; display: flex; align-items: center; gap: 9px; }
.auth-box h1::before {
    content: ''; display: inline-block; width: 10px; height: 10px; border-radius: 50%;
    background: var(--signal); box-shadow: 0 0 0 4px rgba(255,176,32,0.16);
}

/* ---------- Filter bar & dashboard stats ---------- */
.filter-bar { display: flex; gap: 18px; align-items: end; margin-bottom: 22px; flex-wrap: wrap; }
.filter-bar label { display: flex; flex-direction: column; font-size: 0.76rem; color: var(--ink-soft); gap: 4px; }
.filter-bar select { min-width: 160px; }

.stat-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px; text-align: center; box-shadow: 0 1px 2px rgba(20,30,50,0.04); }
.stat-value { font-family: var(--font-mono); font-size: 1.7rem; font-weight: 500; color: var(--signal-deep); }
.stat-label { font-size: 0.75rem; color: var(--ink-soft); margin-top: 5px; }

.chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.chart-box { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px; box-shadow: 0 1px 2px rgba(20,30,50,0.04); min-width: 0; }
.chart-box.wide { grid-column: 1 / -1; }
.chart-canvas-wrap { position: relative; height: 260px; width: 100%; }
.chart-canvas-wrap canvas { position: absolute; inset: 0; width: 100% !important; height: 100% !important; }

@media (max-width: 900px) {
    .sidebar { position: static; height: auto; width: 100%; flex-direction: row; align-items: center; padding: 12px 16px; }
    .sidebar-brand { padding: 0; margin-right: 16px; }
    .side-nav { flex-direction: row; flex-wrap: wrap; }
    .side-nav-divider { display: none; }
    .sidebar-user { border: none; margin: 0 0 0 auto; padding: 0; }
    .app-shell { flex-direction: column; }
    .container { padding: 20px 16px 40px; }
}
@media (max-width: 700px) {
    .form-row, .stat-cards, .chart-grid { grid-template-columns: 1fr; flex-direction: column; }
}