:root {
    color-scheme: light;
    --bg: #f4f7fa;
    --card: #ffffff;
    --text: #172033;
    --muted: #6f7b8a;
    --line: #dfe6ee;
    --primary: #2fc6f6;
    --primary-dark: #129dc8;
    --success: #4dbd74;
    --danger: #e5484d;
    --shadow: 0 10px 30px rgba(27, 45, 73, .08);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
}

.app-shell { max-width: 1240px; margin: 0 auto; padding: 22px; }
.app-header { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 16px; }
h1, h2 { margin: 0 0 8px; }
h1 { font-size: 26px; }
h2 { font-size: 21px; }
.eyebrow { margin: 0 0 6px; color: var(--primary-dark); font-size: 11px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
.muted { color: var(--muted); margin: 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); padding: 20px; }

.tabs { display: flex; gap: 4px; margin-bottom: 14px; border-bottom: 1px solid var(--line); }
.tab { border: 0; background: transparent; padding: 12px 16px; color: var(--muted); cursor: pointer; border-bottom: 3px solid transparent; }
.tab.is-active { color: var(--text); border-bottom-color: var(--primary); font-weight: 700; }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.span-2 { grid-column: 1 / -1; }
label { display: grid; gap: 7px; color: #405066; font-weight: 600; }
input, select, textarea {
    width: 100%;
    border: 1px solid #c8d1dc;
    border-radius: 8px;
    padding: 11px 12px;
    background: #fff;
    color: var(--text);
    font: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(47, 198, 246, .3); border-color: var(--primary-dark); }
textarea { resize: vertical; }
.form-actions { display: flex; gap: 10px; align-items: center; }
.button { border: 0; border-radius: 8px; padding: 11px 17px; font-weight: 700; cursor: pointer; }
.button:disabled { opacity: .55; cursor: wait; }
.button-primary { color: #fff; background: var(--primary-dark); }
.button-primary:hover { background: #0c86ad; }
.button-secondary { color: #334155; background: #e9eef4; }

.status { display: none; margin: 0 0 14px; padding: 11px 14px; border-radius: 8px; color: #24633b; background: #eaf8ef; }
.status.is-visible { display: block; }
.status.is-error { color: #8c2024; background: #fdebec; }

.toolbar { display: flex; gap: 12px; align-items: end; margin-bottom: 14px; }
.toolbar label { min-width: 210px; }
.summary-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; margin-bottom: 14px; }
.summary-card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 15px; }
.summary-card span { display: block; color: var(--muted); margin-bottom: 8px; }
.summary-card strong { font-size: 24px; }

.table-wrap { overflow-x: auto; padding: 0; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 13px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
th { background: #f8fafc; color: #4b5b70; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
th small { text-transform: none; letter-spacing: 0; }
tr:last-child td { border-bottom: 0; }
.empty { text-align: center; color: var(--muted); padding: 28px; }
.danger { color: var(--danger); font-weight: 700; }
.plan-input { max-width: 140px; }
.progress { width: 110px; height: 7px; background: #e8edf3; border-radius: 10px; overflow: hidden; display: inline-block; margin-right: 7px; }
.progress span { display: block; height: 100%; background: var(--success); }

.details-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 18px 0; }
.details-grid div { padding: 12px; border-radius: 8px; background: #f7f9fb; }
dt { color: var(--muted); font-size: 12px; margin-bottom: 5px; }
dd { margin: 0; font-weight: 700; }
.description { white-space: pre-wrap; color: #405066; }

.installer { max-width: 680px; margin: 40px auto; padding: 20px; }
.install-steps { line-height: 1.8; padding-left: 22px; }
.install-steps .ok { color: #24633b; }
.install-steps .error { color: var(--danger); }

@media (max-width: 820px) {
    .app-shell { padding: 14px; }
    .form-grid, .details-grid { grid-template-columns: 1fr; }
    .span-2 { grid-column: auto; }
    .summary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .app-header, .toolbar { align-items: stretch; flex-direction: column; }
    .tabs { overflow-x: auto; }
}