:root {
    --orange: #FF6D00;
    --orange-dark: #D95C00;
    --brown: #47362E;
    --bg: #FAF6F3;
    --card: #FFFFFF;
    --text: #47362E;
    --muted: #8A7A72;
    --line: #EADFD8;
    --ok: #2E7D32;
    --warning: #B26A00;
    --stale: #8A6D00;
    --alert: #C62828;
    --offline: #6B6B6B;
    --radius: 14px;
    --shadow: 0 1px 2px rgba(71, 54, 46, .06), 0 4px 14px rgba(71, 54, 46, .06);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1F1815;
        --card: #2B221E;
        --text: #F3EAE5;
        --muted: #A8978E;
        --line: #3D312B;
        --ok: #66BB6A;
        --warning: #FFB74D;
        --stale: #E0C45A;
        --alert: #EF5350;
        --offline: #9E9E9E;
        --shadow: 0 1px 2px rgba(0, 0, 0, .3);
    }
    .logo { background: #FAF6F3; border-radius: 10px; padding: 4px; }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.4;
}

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px; }

/* Header */
.topbar {
    background: var(--card);
    border-bottom: 3px solid var(--orange);
    position: sticky;
    top: 0;
    z-index: 10;
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 12px; }
.logo { width: 44px; height: 44px; }
h1 { font-size: 1.35rem; margin: 0; line-height: 1.1; }
.sub { margin: 2px 0 0; font-size: .82rem; color: var(--muted); }
.actions { display: flex; align-items: center; gap: 12px; }
.updated { font-size: .85rem; color: var(--muted); }

.btn {
    font: inherit; font-weight: 700; font-size: .9rem;
    background: var(--orange); color: #fff;
    border: 0; border-radius: 999px; padding: 9px 18px; cursor: pointer;
    transition: background .15s;
}
.btn:hover { background: var(--orange-dark); }
.btn:disabled { opacity: .6; cursor: default; }
.btn:focus-visible { outline: 3px solid var(--brown); outline-offset: 2px; }

/* Banner errori */
.banner {
    margin: 16px 0 0; padding: 12px 16px; border-radius: 10px;
    background: #FDECEA; color: #8E1B1B; border: 1px solid #F5C2BE; font-size: .92rem;
}
@media (prefers-color-scheme: dark) { .banner { background: #3A1E1C; color: #FFB4AE; border-color: #6B2D29; } }

/* Riepilogo */
.summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 20px 0 8px; }
.tile { background: var(--card); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.tile .n { font-size: 1.9rem; font-weight: 700; line-height: 1; }
.tile .l { font-size: .82rem; color: var(--muted); margin-top: 4px; }
.tile.ok .n { color: var(--ok); }
.tile.problem .n { color: var(--alert); }
.tile.zero .n { color: var(--muted); }

/* Stazioni */
.station { margin-top: 28px; }
.station h2 { font-size: 1.1rem; margin: 0 0 12px; display: flex; align-items: baseline; gap: 8px; }
.station h2 small { font-weight: 400; color: var(--muted); font-size: .85rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }

.card {
    background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
    padding: 16px; border-left: 6px solid var(--ok); position: relative;
}
.card.warning { border-left-color: var(--warning); }
.card.stale { border-left-color: var(--stale); }
.card.alert { border-left-color: var(--alert); }
.card.offline { border-left-color: var(--offline); opacity: .92; }

.card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.mname { font-weight: 700; font-size: 1rem; }
.mtype { font-size: .78rem; color: var(--muted); }

.badge {
    font-size: .72rem; font-weight: 700; padding: 3px 9px; border-radius: 999px;
    color: #fff; background: var(--ok); white-space: nowrap;
}
.badge.warning { background: var(--warning); }
.badge.stale { background: var(--stale); }
.badge.alert { background: var(--alert); }
.badge.offline { background: var(--offline); }

.temp { font-size: 2.6rem; font-weight: 700; line-height: 1.1; margin: 10px 0 2px; letter-spacing: -.02em; }
.temp .u { font-size: 1.2rem; font-weight: 500; color: var(--muted); margin-left: 2px; }
.temp .trend { font-size: 1.2rem; margin-left: 6px; color: var(--orange); }
.temp.nodata { color: var(--muted); }
.minmax { font-size: .82rem; color: var(--muted); }

.metrics { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line); font-size: .85rem; }
.metrics span b { font-weight: 700; }
.metrics .k { color: var(--muted); }

.alerts { margin: 10px 0 0; padding: 0; list-style: none; font-size: .82rem; color: var(--alert); }
.alerts li::before { content: "\26A0\FE0F\00a0"; }
.seen { font-size: .76rem; color: var(--muted); margin-top: 10px; }

.empty { text-align: center; color: var(--muted); padding: 48px 0; }
.foot { color: var(--muted); font-size: .8rem; padding-top: 28px; padding-bottom: 32px; }

@media (max-width: 520px) {
    .actions { width: 100%; justify-content: space-between; }
}

/* Navigazione */
.nav { display: flex; gap: 4px; }
.nav a { text-decoration: none; color: var(--muted); font-weight: 700; font-size: .92rem; padding: 8px 14px; border-radius: 999px; }
.nav a:hover { color: var(--text); background: var(--bg); }
.nav a[aria-current="page"] { color: #fff; background: var(--brown); }
@media (prefers-color-scheme: dark) { .nav a[aria-current="page"] { background: var(--orange); } }

/* Pagina Storico */
.controls { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 16px 24px; margin: 20px 0 4px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field > span { font-size: .78rem; color: var(--muted); font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
select {
    font: inherit; font-size: .95rem; color: var(--text); background: var(--card);
    border: 1px solid var(--line); border-radius: 10px; padding: 9px 12px; min-width: 220px;
}
select:focus-visible, .chip:focus-visible, .nav a:focus-visible { outline: 3px solid var(--orange); outline-offset: 2px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
    font: inherit; font-size: .88rem; font-weight: 500; color: var(--text); background: var(--card);
    border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px; cursor: pointer;
}
.chip:hover { border-color: var(--orange); }
.chip.active { background: var(--orange); border-color: var(--orange); color: #fff; font-weight: 700; }
.chip[hidden] { display: none; }
.btn-ghost { background: transparent; color: var(--orange-dark); border: 2px solid var(--orange); text-decoration: none; display: inline-block; }
.btn-ghost:hover { background: var(--orange); color: #fff; }

.chart-card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; margin-top: 16px; position: relative; }
.chart-box { position: relative; height: 420px; }
.chart-card .empty { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; padding: 24px; margin: 0; }
.chart-card .empty[hidden] { display: none; }
@media (max-width: 520px) { .chart-box { height: 320px; } select { min-width: 0; width: 100%; } .field { width: 100%; } }

.card .hist { display: inline-block; margin-top: 10px; font-size: .82rem; font-weight: 700; color: var(--orange-dark); text-decoration: none; }
.card .hist:hover { text-decoration: underline; }
@media (prefers-color-scheme: dark) { .card .hist, .btn-ghost { color: var(--orange); } }

/* Login */
.nav a.out { margin-left: 8px; border: 1px solid var(--line); }
.login-page { min-height: 100vh; display: flex; }
.login-wrap { margin: auto; padding: 24px 16px; width: 100%; display: flex; justify-content: center; }
.login-card { background: var(--card); border-radius: 18px; box-shadow: var(--shadow); padding: 32px 28px; width: 100%; max-width: 380px; border-top: 5px solid var(--orange); display: flex; flex-direction: column; gap: 14px; }
.login-card.wide { max-width: 560px; }
.login-card h1 { margin-top: 4px; }
.login-card .sub { margin: -8px 0 4px; }
.logo-lg { width: 56px; height: 56px; }
.input { font: inherit; font-size: 1rem; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 11px 12px; width: 100%; }
.input:focus-visible { outline: 3px solid var(--orange); outline-offset: 1px; background: var(--card); }
.btn-block { width: 100%; padding: 12px 18px; font-size: 1rem; margin-top: 4px; }
.banner.info { background: #FFF4E8; color: #7A3E00; border-color: #FFD2A8; }
@media (prefers-color-scheme: dark) { .banner.info { background: #3A2A18; color: #FFD2A8; border-color: #6B4A27; } }
.hint { font-size: .88rem; color: var(--muted); margin: 0; }
.snippet { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 12px; font-size: .78rem; overflow-x: auto; white-space: pre-wrap; word-break: break-all; margin: 0; }
code { background: var(--bg); padding: 1px 5px; border-radius: 5px; font-size: .88em; }

/* Account / utenti */
.banner.ok { background: #E8F5E9; color: #1B5E20; border-color: #B7DDB9; margin-top: 16px; }
@media (prefers-color-scheme: dark) { .banner.ok { background: #1E3322; color: #A5D6A7; border-color: #2F5A36; } }
.panel { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; margin-top: 20px; }
.panel h2 { margin: 0 0 8px; font-size: 1.1rem; }
.form-grid { display: flex; flex-wrap: wrap; gap: 14px 18px; align-items: flex-end; margin-top: 8px; }
.form-grid .field { flex: 1 1 220px; }
.check { display: flex; align-items: center; gap: 8px; font-size: .92rem; padding-bottom: 10px; }
.table-wrap { overflow-x: auto; margin-top: 8px; }
.tbl { width: 100%; border-collapse: collapse; font-size: .92rem; min-width: 760px; }
.tbl th { text-align: left; font-size: .74rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); padding: 8px 10px; border-bottom: 1px solid var(--line); }
.tbl td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.tbl tr.inactive td { color: var(--muted); }
.muted { color: var(--muted); font-weight: 400; }
.input-sm { padding: 7px 10px; font-size: .88rem; max-width: 190px; }
.inline-form { display: flex; gap: 6px; align-items: center; }
.row-actions { white-space: nowrap; }
.row-actions form { display: inline-block; margin: 0 6px 0 0; }
.chip.danger { color: var(--alert); border-color: var(--alert); }
.chip.danger:hover { background: var(--alert); color: #fff; }

select.input, select.input-sm { min-width: 0; }
.tbl select.input-sm { min-width: 150px; max-width: 200px; }

/* Impostazioni */
textarea.input { resize: vertical; min-height: 84px; }
.sub-h { margin: 18px 0 4px; font-size: .95rem; }
.tbl.tbl-narrow { min-width: 560px; }
.panel form > p { margin: 14px 0 0; }
code { background: var(--bg); padding: 1px 5px; border-radius: 4px; font-size: .88em; }
.panel form .check { margin-top: 10px; padding-bottom: 0; }
.panel form .field + .form-grid, .panel form .field + .field { margin-top: 12px; }