:root, :root[data-theme="light"] {
    --bg: #0f172a;          /* top bar */
    --app-bg: #f1f5f9;      /* page background */
    --panel: #ffffff;       /* cards / tables / panels */
    --th-bg: #f8fafc;       /* table header */
    --ink: #1e293b;
    --muted: #64748b;
    --border: #e2e8f0;
    --btn-bg: #ffffff;
    --btn-hover: #f1f5f9;
    --up: #16a34a;
    --down: #dc2626;
    --degraded: #d97706;
    --unknown: #94a3b8;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --err-bg: #fef2f2;
    --err-border: #fecaca;
    --err-ink: #b91c1c;
    --warn-bg: #fffbeb;
    --warn-border: #fde68a;
    --warn-ink: #92400e;
    --shadow: rgba(15, 23, 42, .08);
    --shadow-strong: rgba(15, 23, 42, .12);
}

:root[data-theme="dark"] {
    --bg: #0b1120;
    --app-bg: #0f172a;
    --panel: #1e293b;
    --th-bg: #172033;
    --ink: #e2e8f0;
    --muted: #94a3b8;
    --border: #334155;
    --btn-bg: #1e293b;
    --btn-hover: #334155;
    --up: #22c55e;
    --down: #ef4444;
    --degraded: #f59e0b;
    --unknown: #64748b;
    --primary: #3b82f6;
    --primary-hover: #60a5fa;
    --err-bg: #3f1d1d;
    --err-border: #7f1d1d;
    --err-ink: #fca5a5;
    --warn-bg: #3a2e0a;
    --warn-border: #854d0e;
    --warn-ink: #fcd34d;
    --shadow: rgba(0, 0, 0, .35);
    --shadow-strong: rgba(0, 0, 0, .5);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--ink);
    background: var(--app-bg);
    transition: background .2s ease, color .2s ease;
}

.muted { color: var(--muted); }
.small { font-size: 0.8rem; }
.url { word-break: break-all; }

/* Banners */
.banner { border: 1px solid; border-radius: 10px; padding: .8rem 1rem; margin-bottom: 1.25rem; font-size: .9rem; line-height: 1.4; }
.banner-warn { background: var(--warn-bg); border-color: var(--warn-border); color: var(--warn-ink); }

/* Top bar */
.topbar { background: var(--bg); color: #e2e8f0; }
.topbar-inner {
    max-width: 1100px; margin: 0 auto; padding: 0.85rem 1.25rem;
    display: flex; align-items: center; justify-content: space-between;
}
.topbar nav a {
    margin-left: .6rem; padding: .35rem .8rem;
    border: 1px solid rgba(203, 213, 225, .35); border-radius: 8px;
    color: #cbd5e1; text-decoration: none; font-size: .85rem;
    transition: background .15s, color .15s;
}
.topbar nav a:hover { background: rgba(203, 213, 225, .15); color: #fff; }
.topbar nav a.active { color: #fbbf24; border-color: rgba(251, 191, 36, .55); }
.topbar nav a.active:hover { background: rgba(251, 191, 36, .12); color: #fcd34d; }
.brand { font-size: 1.25rem; font-weight: 700; color: #fff; text-decoration: none; }
.brand span { color: #60a5fa; }

.container { max-width: 1100px; margin: 1.5rem auto; padding: 0 1.25rem; }
.footer { text-align: center; padding: 2rem 0; }

.page-head {
    display: flex; align-items: flex-end; justify-content: space-between;
    margin-bottom: 1.25rem; gap: 1rem;
}
.page-head h1 { margin: 0.25rem 0 0; font-size: 1.5rem; }

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1rem; }
.project-card {
    display: block; background: var(--panel); border: 1px solid var(--border);
    border-radius: 12px; padding: 1.1rem; text-decoration: none; color: inherit;
    transition: box-shadow .15s, transform .15s;
}
.project-card:hover { box-shadow: 0 8px 24px var(--shadow); transform: translateY(-2px); }
.project-card-head { display: flex; justify-content: space-between; align-items: baseline; }
.project-card-head h2 { margin: 0; font-size: 1.15rem; }
.status-row { display: flex; flex-wrap: wrap; gap: .4rem; margin: .9rem 0; }
.project-card-foot { font-size: .8rem; }

/* Pills / badges */
.pill {
    display: inline-block; padding: .15rem .55rem; border-radius: 999px;
    font-size: .72rem; font-weight: 600; color: #fff; white-space: nowrap;
}
.pill-lg { font-size: .9rem; padding: .35rem .9rem; }
.status-up { background: var(--up); }
.status-down { background: var(--down); }
.status-degraded { background: var(--degraded); }
.status-unknown { background: var(--unknown); }
.text-up { color: var(--up); font-weight: 600; }
.text-down { color: var(--down); font-weight: 600; }

/* Tables */
.data-table { width: 100%; border-collapse: collapse; background: var(--panel);
    border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.data-table th, .data-table td { text-align: left; padding: .6rem .7rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.data-table th { background: var(--th-bg); font-size: .75rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
.data-table tr:last-child td { border-bottom: none; }
.data-table a { color: var(--primary); text-decoration: none; font-weight: 600; }

/* Panels / detail */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
@media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 1.1rem; margin-bottom: 1rem; }
.panel h3 { margin-top: 0; }
.kv { display: grid; grid-template-columns: 130px 1fr; gap: .35rem .8rem; margin: 0 0 1rem; }
.kv dt { color: var(--muted); font-size: .85rem; }
.kv dd { margin: 0; word-break: break-all; }

/* Buttons */
.btn { display: inline-block; border: 1px solid var(--border); background: var(--btn-bg); color: var(--ink);
    padding: .4rem .8rem; border-radius: 8px; font-size: .85rem; cursor: pointer; text-decoration: none; }
.btn:hover { background: var(--btn-hover); }
.btn-small { padding: .25rem .6rem; font-size: .78rem; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--down); color: #fff; border-color: var(--down); }
.btn-danger:hover { background: var(--down); filter: brightness(1.08); }
.btn-success { background: var(--up); color: #fff; border-color: var(--up); }
.btn-success:hover { background: var(--up); filter: brightness(1.08); }

/* Row actions + disabled targets */
.row-actions { display: flex; gap: .4rem; }
.row-actions form { margin: 0; }
.status-disabled { background: var(--unknown); }
tr.row-disabled td { opacity: .5; }
tr.row-disabled td .row-actions { opacity: 1; }

/* Admin */
.admin-add-project h2, .admin-project h2 { margin: 0 0 .6rem; font-size: 1.05rem; }
.admin-project-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-bottom: .6rem; }
.admin-project-head h2 { margin: 0; }
.admin-project-head form { margin: 0; }
.admin-project .data-table { margin-bottom: .9rem; }
.admin-form { display: flex; flex-wrap: wrap; align-items: flex-end; gap: .8rem; }
.admin-form label { display: block; font-size: .78rem; color: var(--muted); }
.admin-form input, .admin-form select {
    display: block; margin-top: .25rem; padding: .45rem .6rem; min-width: 170px;
    border: 1px solid var(--border); border-radius: 8px; font-size: .9rem;
    background: var(--btn-bg); color: var(--ink);
}
.admin-form input:focus, .admin-form select:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
.admin-add-service { margin-top: .2rem; }
.admin-add-service summary { list-style: none; width: fit-content; }
.admin-add-service summary::-webkit-details-marker { display: none; }
.admin-add-service[open] summary { margin-bottom: .7rem; }
.admin-add-service form { padding: .8rem; background: var(--th-bg); border: 1px solid var(--border); border-radius: 10px; }

/* Login */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card { background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
    padding: 2rem; width: 340px; box-shadow: 0 10px 40px var(--shadow-strong); }
.login-card .brand { color: var(--ink); }
.login-card label { display: block; margin: .8rem 0; font-size: .85rem; color: var(--muted); }
.login-card input { display: block; width: 100%; margin-top: .3rem; padding: .55rem .6rem;
    border: 1px solid var(--border); border-radius: 8px; font-size: .95rem; }
.login-card .btn { width: 100%; margin-top: .6rem; text-align: center; }
.alert-error { background: var(--err-bg); border: 1px solid var(--err-border); color: var(--err-ink);
    padding: .6rem .8rem; border-radius: 8px; font-size: .85rem; }

/* Theme toggle */
.theme-toggle {
    margin-left: .6rem; background: transparent; border: 1px solid rgba(203, 213, 225, .35);
    color: #cbd5e1; width: 32px; height: 32px; border-radius: 8px; cursor: pointer;
    font-size: 1rem; line-height: 1; display: inline-flex; align-items: center; justify-content: center;
    vertical-align: middle; transition: background .15s, border-color .15s;
}
.theme-toggle:hover { background: rgba(203, 213, 225, .15); color: #fff; }
.theme-toggle-floating {
    position: fixed; top: 1rem; right: 1rem; background: var(--btn-bg); color: var(--ink);
    border: 1px solid var(--border);
}
.theme-toggle-floating:hover { background: var(--btn-hover); color: var(--ink); }