/*
  Panel tek bir CSS dosyasi kullanir; harici bir cerceve yuklenmez.
  Sebep: sunucu internetsiz kalsa veya CDN engellense bile panel acilmali.
*/

:root {
    --bg: #f5f6f8;
    --card: #ffffff;
    --text: #1d2129;
    --muted: #6b7280;
    --line: #e3e6ea;
    --accent: #1f6feb;
    --good: #1a7f37;
    --bad: #c62828;
    --warn: #b26a00;
    --alert-bg: #fff8e1;
    --radius: 10px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #14161a;
        --card: #1c1f24;
        --text: #e6e8eb;
        --muted: #9aa4b2;
        --line: #2a2f36;
        --accent: #5596ff;
        --good: #4caf50;
        --bad: #ef5350;
        --warn: #ffb300;
        --alert-bg: #2a2418;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 15px;
    line-height: 1.45;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 16px;
    background: var(--card);
    border-bottom: 1px solid var(--line);
    flex-wrap: wrap;
}

.brand { font-weight: 700; font-size: 17px; color: var(--text); }
.topnav { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.topnav a { color: var(--muted); }
.logout { margin: 0; }
.logout button {
    background: none;
    border: 1px solid var(--line);
    color: var(--muted);
    padding: 4px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}
.logout button:hover { color: var(--text); }

.container { max-width: 1100px; margin: 0 auto; padding: 16px; }
.footer { text-align: center; color: var(--muted); font-size: 12px; padding: 24px 16px; }

h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 24px 0 10px; }
.subtitle { color: var(--muted); margin: 0 0 16px; font-size: 14px; }

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 14px 16px;
    margin-bottom: 16px;
}

/* Sekmeler ve tarih secimi */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.tabs a, .chips a, .chips button {
    display: inline-block;
    padding: 6px 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--card);
    color: var(--muted);
    font-size: 14px;
    cursor: pointer;
}
.tabs a.active, .chips a.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    text-decoration: none;
}
.chips { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.chips form { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; margin: 0; }

/* Ozet kutulari */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.stat {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 12px 14px;
}
.stat .label { color: var(--muted); font-size: 13px; }
.stat .value { font-size: 20px; font-weight: 600; margin-top: 2px; }
.stat .hint { color: var(--muted); font-size: 12px; margin-top: 2px; }
.stat.alert { background: var(--alert-bg); border-color: var(--warn); }
.value.bad { color: var(--bad); }
.value.good { color: var(--good); }

/* Tablolar */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 13px; white-space: nowrap; }
td.num, th.num { text-align: right; white-space: nowrap; }
tr.alert td { background: var(--alert-bg); }
.table-wrap { overflow-x: auto; }

.badge {
    display: inline-block;
    padding: 1px 8px;
    border-radius: 999px;
    font-size: 12px;
    border: 1px solid var(--line);
    color: var(--muted);
    white-space: nowrap;
}
.badge.online { color: #fff; background: var(--good); border-color: var(--good); }
.badge.offline { color: #fff; background: var(--muted); border-color: var(--muted); }
.badge.warn { color: #fff; background: var(--warn); border-color: var(--warn); }
.badge.bad { color: #fff; background: var(--bad); border-color: var(--bad); }

.muted { color: var(--muted); }
.small { font-size: 13px; }
.empty { color: var(--muted); padding: 24px 0; text-align: center; }

/* Formlar */
form.stack { display: grid; gap: 12px; max-width: 420px; }
label { display: block; font-size: 14px; color: var(--muted); margin-bottom: 4px; }
input[type=text], input[type=password], input[type=date], select {
    width: 100%;
    padding: 9px 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--card);
    color: var(--text);
    font-size: 15px;
}
button.primary {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 15px;
    cursor: pointer;
}
button.primary:hover { filter: brightness(1.05); }
.checks { display: grid; gap: 6px; }
.checks label { display: flex; gap: 8px; align-items: center; color: var(--text); margin: 0; }
.checks input { width: auto; }

.error { background: #fdecea; color: #a32018; border: 1px solid #f5c6c2; padding: 10px 12px; border-radius: 8px; }
.notice { background: #e8f4ff; color: #114a8b; border: 1px solid #bcdcff; padding: 10px 12px; border-radius: 8px; }
@media (prefers-color-scheme: dark) {
    .error { background: #3a1d1b; color: #ffb4ad; border-color: #5e2b27; }
    .notice { background: #15293d; color: #a8cffb; border-color: #23415e; }
}

.login-wrap { max-width: 360px; margin: 8vh auto; }
.login-wrap h1 { text-align: center; margin-bottom: 18px; }

.business-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.business-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }
.business-card h3 { margin: 0 0 6px; font-size: 16px; }
.business-card .row { display: flex; justify-content: space-between; gap: 8px; font-size: 14px; margin-top: 4px; }

.bars { display: grid; gap: 6px; }
.bar-row { display: grid; grid-template-columns: 90px 1fr 110px; gap: 8px; align-items: center; font-size: 13px; }
.bar { background: var(--line); border-radius: 4px; height: 14px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--accent); }

@media (max-width: 600px) {
    .container { padding: 12px; }
    th, td { padding: 7px 8px; font-size: 14px; }
    .bar-row { grid-template-columns: 70px 1fr 90px; }
}