:root {
    color-scheme: light;
    font-family: Inter, ui-sans-serif, system-ui, sans-serif;
    background: #eef2f7;
    color: #172033;
}
* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; display: grid; place-items: center; padding: 24px; }
.card { width: min(100%, 440px); background: white; border-radius: 18px; padding: 32px; box-shadow: 0 18px 50px rgba(23, 32, 51, .12); }
.eyebrow { color: #315efb; font-size: .75rem; font-weight: 800; letter-spacing: .14em; }
h1 { margin: 8px 0 10px; font-size: 1.75rem; }
.muted { color: #61708a; line-height: 1.55; }
form { display: grid; gap: 10px; margin-top: 24px; }
label, dt { font-size: .85rem; font-weight: 700; }
input { width: 100%; border: 1px solid #cbd4e1; border-radius: 10px; padding: 12px; font: inherit; }
textarea { width: 100%; border: 1px solid #cbd4e1; border-radius: 10px; padding: 12px; font: inherit; resize: vertical; }
input:focus { outline: 3px solid rgba(49, 94, 251, .18); border-color: #315efb; }
button { margin-top: 8px; border: 0; border-radius: 10px; padding: 12px 18px; background: #315efb; color: white; font: inherit; font-weight: 750; cursor: pointer; }
button.secondary { background: #172033; }
.alert { margin-top: 18px; border-radius: 10px; padding: 12px; background: #fff0f0; color: #9a2525; }
.success { margin-top: 18px; border-radius: 10px; padding: 12px; background: #eaf9ef; color: #176b38; }
dl { display: grid; grid-template-columns: 90px 1fr; gap: 8px 16px; margin: 24px 0; }
dd { margin: 0; }
.wide-card { width: min(100%, 1040px); background: white; border-radius: 18px; padding: 32px; box-shadow: 0 18px 50px rgba(23, 32, 51, .12); }
.form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-grid label { display: grid; gap: 7px; }
.form-grid button, .form-grid .check { align-self: end; }
.check { display: flex !important; align-items: center; grid-auto-flow: column; justify-content: start; }
.check input { width: auto; }
select { border: 1px solid #cbd4e1; border-radius: 10px; padding: 12px; font: inherit; background: white; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px; border-bottom: 1px solid #e2e7ef; text-align: left; vertical-align: middle; }
.inline-form { display: inline; margin: 0; }
button.small { margin: 0; padding: 8px 10px; }
.button-link { display: inline-block; border-radius: 10px; padding: 10px 14px; background: #315efb; color: white; text-decoration: none; font-weight: 700; }
.secondary-link { background: #172033; }
nav a { color: #315efb; text-decoration: none; }
@media (max-width: 720px) { .form-grid { grid-template-columns: 1fr; } .wide-card { padding: 22px; } }
.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; align-items: start; }
select[multiple] { min-height: 110px; }
@media (max-width: 720px) { .split { grid-template-columns: 1fr; } }
.full-span { grid-column: 1 / -1; }
.preview { margin: 30px 0; padding: 24px; border: 1px solid #d8e0ec; border-radius: 14px; background: #f8faff; }
.message-preview { white-space: normal; line-height: 1.6; padding: 18px; border-radius: 10px; background: white; }
.stats { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 12px; margin: 22px 0; }
.stats div { padding: 16px; border-radius: 12px; background: #f2f5fa; display: grid; gap: 4px; }
.stats strong { font-size: 1.6rem; }.stats span { color: #61708a; font-size: .85rem; }
.filter-row { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; }.filter-row label { display: grid; gap: 6px; }.filter-row button,.filter-row .button-link { margin: 0; }
.inline-controls { display: flex; gap: 6px; align-items: center; margin: 0; }.inline-controls select { padding: 8px; }
.menu-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; margin: 22px 0; }.menu-grid .button-link { text-align: center; }
@media(max-width:720px){.stats,.menu-grid{grid-template-columns:1fr 1fr}.filter-row{display:grid}.inline-controls{flex-wrap:wrap}}