:root {
    --purple-bg: #f3e8ff;
    --purple-text: #6d28d9;
    --gray-text: #4b5563;
    --border: #e5e7eb;
    --bg: #f9fafb;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", "Hiragino Sans", "Yu Gothic", sans-serif;
    background: var(--bg);
    color: #111827;
}

.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidenav {
    width: 220px;
    flex: none;
    background: #ffffff;
    border-right: 1px solid var(--border);
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 17px;
    color: var(--purple-text);
    padding: 6px 8px 16px;
}
.brand span {
    font-weight: 400;
    font-size: 11px;
    color: var(--gray-text);
}
.brand-logo { height: 32px; width: auto; display: block; }

.nav-list { display: flex; flex-direction: column; gap: 4px; }
.nav-btn {
    text-align: left;
    padding: 10px 12px;
    border: none;
    background: transparent;
    border-radius: 8px;
    font-size: 13px;
    color: var(--gray-text);
    cursor: pointer;
}
.nav-btn:hover { background: #f5f3ff; }
.nav-btn.active { background: var(--purple-bg); color: var(--purple-text); font-weight: 600; }

.content {
    flex: 1;
    padding: 24px 28px;
    min-width: 0;
}
.content h1 {
    font-size: 18px;
    margin: 0 0 14px;
    color: #111827;
}

.subtabs {
    display: flex;
    gap: 6px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.subtab-btn {
    padding: 7px 14px;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 999px;
    font-size: 12px;
    color: var(--gray-text);
    cursor: pointer;
}
.subtab-btn.active { background: var(--purple-text); border-color: var(--purple-text); color: #fff; }

.layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 20px;
    align-items: start;
}

.panel {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 18px 20px;
}

.panel h2 {
    font-size: 14px;
    color: var(--gray-text);
    margin: 0 0 14px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 8px;
}

.field-row { margin-bottom: 14px; }
.field-row label {
    display: block;
    font-size: 12px;
    color: var(--gray-text);
    margin-bottom: 4px;
}
.field-inline {
    display: flex;
    align-items: center;
    gap: 6px;
}
input[type="date"], input[type="month"], input[type="text"], input[type="email"], input[type="password"], input[type="number"], select {
    width: 100%;
    padding: 7px 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
}

.btn-primary {
    width: 100%;
    padding: 10px;
    background: var(--purple-text);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 6px;
}
.btn-primary:hover { background: #5b21b6; }
.btn-primary:disabled { background: #c4b5fd; cursor: default; }

.btn-export {
    padding: 6px 12px;
    background: #fff;
    color: var(--purple-text);
    border: 1px solid var(--purple-text);
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    margin-bottom: 10px;
}
.btn-export:hover { background: var(--purple-bg); }
.results-header .btn-export { margin-bottom: 0; }
.results-header select { width: auto; }

.status {
    font-size: 12px;
    color: var(--gray-text);
    min-height: 16px;
}
.status.error {
    color: #dc2626;
    font-weight: 600;
}
.field-row select.input-error,
.field-row input.input-error {
    border-color: #dc2626;
    background: #fef2f2;
}

.table-wrap { overflow-x: auto; }

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
th, td {
    padding: 8px 10px;
    text-align: right;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
th:first-child, td:first-child { text-align: left; }
thead th {
    background: var(--purple-bg);
    color: var(--purple-text);
    font-weight: 600;
}
tbody tr:hover { background: #faf5ff; }

.chart-wrap { margin-bottom: 18px; }
.chart-title { font-size: 12px; color: var(--gray-text); margin-bottom: 6px; }

@media (max-width: 900px) {
    .layout { grid-template-columns: 1fr; }
}