:root {
    --bg: #eef3f8;
    --surface: rgba(255, 255, 255, 0.92);
    --surface-strong: #ffffff;
    --surface-muted: #f7f9fc;
    --border: rgba(31, 52, 84, 0.12);
    --text: #17212f;
    --muted: #5f6f86;
    --brand: #c49644;
    --brand-deep: #8a6223;
    --accent: #1f4b7a;
    --accent-soft: #eaf1fb;
    --danger: #c2413b;
    --warning: #d98c10;
    --success: #218552;
    --shadow: 0 18px 40px rgba(19, 38, 68, 0.09);
}

[data-theme="dark"] {
    --bg: #0f1722;
    --surface: rgba(18, 27, 39, 0.94);
    --surface-strong: #162131;
    --surface-muted: #111b29;
    --border: rgba(203, 216, 236, 0.12);
    --text: #ecf1f2;
    --muted: #a3b2c7;
    --brand: #ddb173;
    --brand-deep: #f0cf9a;
    --accent: #7fb1eb;
    --accent-soft: rgba(127, 177, 235, 0.12);
    --danger: #f97066;
    --warning: #fdb022;
    --success: #74d7a3;
    --shadow: 0 18px 40px rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(196, 150, 68, 0.14), transparent 24%),
        linear-gradient(180deg, rgba(31, 75, 122, 0.08), transparent 38%),
        var(--bg);
    color: var(--text);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea {
    font: inherit;
    border-radius: 10px;
}
button, .ghost-btn {
    background: var(--brand);
    color: #fff;
    border: 0;
    padding: 0.8rem 1rem;
    cursor: pointer;
    font-weight: 600;
}
.ghost-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}
.ghost-btn:hover,
button:hover {
    filter: brightness(1.03);
}
.full-width { width: 100%; }
.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.72rem;
    color: var(--muted);
    font-weight: 700;
}
.app-shell {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
}
.sidebar {
    padding: 1.6rem;
    border-right: 1px solid var(--border);
    background:
        linear-gradient(180deg, rgba(16, 28, 44, 0.98), rgba(12, 21, 33, 0.98)),
        #10161a;
    backdrop-filter: blur(18px);
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
}
.brand-block { display: flex; gap: 1rem; align-items: flex-start; padding: 0.35rem 0 0.75rem; border-bottom: 1px solid rgba(255,255,255,0.08); }
.brand-mark {
    width: 64px;
    min-width: 64px;
    height: 64px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: rgba(255,255,255,0.96);
    padding: 0.5rem;
    box-shadow: 0 12px 24px rgba(0,0,0,0.2);
}
.brand-mark img { width: 100%; height: auto; object-fit: contain; }
.brand-block h1, .topbar h2, .login-panel h1 { margin: 0.15rem 0; }
.brand-copy { margin: 0.3rem 0 0; color: #a7b6c7; font-size: 0.88rem; line-height: 1.5; }
.nav-links { display: grid; gap: 0.5rem; }
.sidebar,
.sidebar .eyebrow,
.sidebar h1,
.sidebar strong,
.sidebar small,
.sidebar .ghost-btn,
.sidebar a {
    color: #ecf1f2;
}
.nav-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1rem;
    border-radius: 8px;
    color: #a4b1b8;
    border: 1px solid transparent;
}
.nav-links a.active, .nav-links a:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
    border-color: rgba(255,255,255,0.06);
}
.nav-count {
    min-width: 1.6rem;
    height: 1.6rem;
    padding: 0 0.35rem;
    border-radius: 999px;
    background: rgba(221, 177, 115, 0.18);
    color: var(--brand-deep);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 700;
}
.sidebar-foot { margin-top: auto; display: grid; gap: 1rem; }
.profile-card, .profile-inline, .timeline-item { display: flex; gap: 0.8rem; align-items: flex-start; }
.avatar {
    width: 46px;
    height: 46px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    color: #fff;
    font-weight: 700;
}
.avatar.small { width: 40px; height: 40px; border-radius: 14px; }
.avatar.tiny { width: 32px; height: 32px; border-radius: 10px; font-size: 0.8rem; }
.badge-row, .meta-row, .button-row { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }
.badge, .chip, .pill, .priority {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
}
.badge.role, .chip { background: var(--accent-soft); color: var(--accent); }
.badge.dept, .pill { background: rgba(196, 150, 68, 0.14); color: var(--brand-deep); }
.priority.low { background: rgba(91,101,114,0.12); color: var(--muted); }
.priority.normal { background: var(--accent-soft); color: var(--accent); }
.priority.high { background: rgba(217,119,6,0.12); color: var(--warning); }
.priority.urgent, .metric-card.urgent { background: rgba(180,35,24,0.11); color: var(--danger); }
.priority.critical { background: rgba(180,35,24,0.18); color: var(--danger); }
.content { padding: 1.6rem; display: grid; gap: 1.3rem; }
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}
.topbar-copy p {
    margin: 0.35rem 0 0;
    color: var(--muted);
    max-width: 52rem;
}
.topbar-actions { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.panel, .metric-card, .login-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}
.panel { padding: 1.2rem; position: relative; overflow: hidden; }
.panel::before,
.metric-card::before,
.login-panel::before {
    content: "";
    position: absolute;
    inset: 0 auto auto 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--brand), var(--accent));
}
.panel-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1rem;
}
.panel-head h3,
.page-intro h3 {
    margin: 0;
}
.page-intro {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start;
    padding: 1.25rem 1.35rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: linear-gradient(180deg, rgba(196, 150, 68, 0.08), rgba(31, 75, 122, 0.04));
    box-shadow: var(--shadow);
}
.page-intro p {
    margin: 0.45rem 0 0;
    color: var(--muted);
    max-width: 54rem;
    line-height: 1.6;
}
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 1rem;
}
.metric-card { padding: 1rem; position: relative; overflow: hidden; }
.metric-card span { color: var(--muted); font-size: 0.85rem; }
.metric-card strong { display: block; font-size: 2rem; margin-top: 0.5rem; }
.metric-card.warning { color: var(--warning); }
.dashboard-grid, .detail-layout {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 1rem;
}
.detail-main, .detail-side, .list-stack, .stack-form, .comment-stack, .timeline {
    display: grid;
    gap: 1rem;
}
.entry-card, .notification-card, .comment-card, .empty-card {
    display: grid;
    gap: 0.5rem;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface-strong);
    transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}
.entry-card:hover, .notification-card:hover, .comment-card:hover { transform: translateY(-1px); border-color: rgba(31,75,122,0.2); box-shadow: 0 12px 24px rgba(19,38,68,0.08); }
.entry-card.compact { padding: 0.85rem; }
.entry-card-head, .stats-row, .spread {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}
.filters-grid, .form-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.9rem;
}
.form-grid .full { grid-column: 1 / -1; }
label { display: grid; gap: 0.35rem; font-size: 0.92rem; }
input, select, textarea {
    width: 100%;
    padding: 0.82rem 0.9rem;
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.8);
    color: var(--text);
}
[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    background: rgba(255,255,255,0.04);
}
.checkbox {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    align-self: end;
}
.checkbox input { width: auto; }
.kanban-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(260px, 1fr));
    gap: 1rem;
    overflow-x: auto;
}
.kanban-col {
    background: rgba(255,255,255,0.18);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--border);
    display: grid;
    gap: 0.8rem;
    align-content: start;
}
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td {
    text-align: left;
    padding: 0.9rem 0.8rem;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}
th {
    color: var(--muted);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}
.detail-grid div {
    display: grid;
    gap: 0.25rem;
    padding: 0.85rem;
    border-radius: 8px;
    background: var(--surface-muted);
}
.detail-grid.single { grid-template-columns: 1fr; }
.body-copy { line-height: 1.7; }
.text-link, .text-danger { color: var(--danger); }
.muted, small { color: var(--muted); }
.lookup-card {
    display: grid;
    gap: 0.6rem;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface-strong);
}
.lookup-selected {
    font-size: 0.9rem;
    color: var(--muted);
}
.lookup-results {
    display: grid;
    gap: 0.4rem;
}
.lookup-result {
    text-align: left;
    display: grid;
    gap: 0.2rem;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 8px;
}
.lookup-error {
    padding: 0.7rem 0.8rem;
    border-radius: 8px;
    background: rgba(180, 35, 24, 0.12);
    color: var(--danger);
}
.mention {
    display: inline-block;
    padding: 0 0.25rem;
    border-radius: 4px;
    background: rgba(23, 73, 77, 0.16);
    color: var(--accent);
    font-weight: 600;
}
.notification-unread {
    border-color: rgba(221, 177, 115, 0.5);
    box-shadow: inset 0 0 0 1px rgba(221,177,115,0.18);
}
.status-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.75rem;
    align-items: end;
}
.entry-form { display: grid; gap: 1rem; }
.alert {
    padding: 0.9rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}
.login-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 2rem;
    background:
        radial-gradient(circle at top left, rgba(196, 150, 68, 0.18), transparent 24%),
        radial-gradient(circle at bottom right, rgba(31, 75, 122, 0.14), transparent 28%),
        var(--bg);
}
.login-panel {
    width: min(560px, 100%);
    padding: 2rem;
    position: relative;
}
.login-brand {
    width: 86px;
    margin-bottom: 1rem;
}
.alert.error {
    background: rgba(180, 35, 24, 0.12);
    color: var(--danger);
}
.alert.success {
    background: rgba(22, 101, 52, 0.12);
    color: var(--success);
}
.helper-note { margin-top: 1rem; color: var(--muted); }

@media (max-width: 1180px) {
    .metrics-grid, .filters-grid, .form-grid, .dashboard-grid, .detail-layout {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .app-shell { grid-template-columns: 1fr; }
    .sidebar { border-right: 0; border-bottom: 1px solid var(--border); }
    .metrics-grid, .filters-grid, .form-grid, .dashboard-grid, .detail-layout, .detail-grid {
        grid-template-columns: 1fr;
    }
    .topbar { flex-direction: column; align-items: flex-start; }
    .page-intro { flex-direction: column; }
}

@media (max-width: 640px) {
    .content,
    .sidebar,
    .login-shell {
        padding: 1rem;
    }
    .panel,
    .metric-card,
    .login-panel {
        border-radius: 8px;
    }
    .brand-mark {
        width: 54px;
        min-width: 54px;
        height: 54px;
    }
    .button-row {
        width: 100%;
    }
    .button-row > * {
        flex: 1 1 auto;
    }
}