* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #f4f6f9;
    color: #222;
}

/* ---------- Login page ---------- */
.login-body {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #003366, #0059b3);
}

.login-box {
    background: #fff;
    padding: 40px 36px;
    border-radius: 10px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.login-box h2 { color: #003366; margin-bottom: 4px; }
.login-box .subtitle { color: #777; margin-bottom: 20px; font-size: 14px; }

.login-box form { display: flex; flex-direction: column; }
.login-box label { font-size: 13px; margin-top: 12px; margin-bottom: 4px; color: #333; }
.login-box input {
    padding: 10px 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 14px;
}
.login-box button {
    margin-top: 22px;
    padding: 11px;
    background: #003366;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 15px;
    cursor: pointer;
}
.login-box button:hover { background: #00509e; }

/* ---------- Alerts ---------- */
.alert {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-error { background: #fdecea; color: #b3261e; border: 1px solid #f5c2c0; }
.alert-success { background: #e8f5e9; color: #1e7d32; border: 1px solid #bfe6c2; }

/* ---------- App layout ---------- */
.app-layout { display: flex; min-height: 100vh; }

.sidebar {
    width: 250px;
    background: #003366;
    color: #fff;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}
.sidebar-header { padding: 20px 18px; border-bottom: 1px solid rgba(255,255,255,0.15); }
.sidebar-header h3 { font-size: 17px; }
.role-badge { font-size: 12px; opacity: 0.75; margin-top: 4px; text-transform: uppercase; letter-spacing: 0.5px; }

.sidebar-nav { flex: 1; padding: 10px 0; overflow-y: auto; }
.nav-section-title {
    font-size: 11px;
    text-transform: uppercase;
    opacity: 0.55;
    margin: 16px 18px 6px;
    letter-spacing: 0.5px;
}
.nav-link {
    display: block;
    padding: 10px 18px;
    color: #d7e3f4;
    text-decoration: none;
    font-size: 14px;
    border-left: 3px solid transparent;
}
.nav-link:hover { background: rgba(255,255,255,0.08); }
.nav-link.active { background: rgba(255,255,255,0.14); border-left-color: #ffb703; color: #fff; }

/* Collapsible module groups (Data Upload + view link) */
.nav-group { border-left: 3px solid transparent; }
.nav-group-label {
    padding: 10px 18px;
    color: #d7e3f4;
    font-size: 14px;
    cursor: pointer;
    list-style: none;
    user-select: none;
}
.nav-group-label::-webkit-details-marker { display: none; }
.nav-group-label::before {
    content: "\25B8";
    display: inline-block;
    margin-right: 8px;
    font-size: 11px;
    transition: transform 0.15s;
}
.nav-group[open] .nav-group-label::before { transform: rotate(90deg); }
.nav-group-label:hover { background: rgba(255,255,255,0.08); }
.nav-group .nav-link { padding-left: 34px; font-size: 13px; }

.sidebar-footer {
    padding: 14px 18px;
    border-top: 1px solid rgba(255,255,255,0.15);
}
.user-name { font-size: 13px; margin-bottom: 8px; }
.logout-link {
    display: inline-block;
    color: #ffb703;
    text-decoration: none;
    font-size: 13px;
}
.logout-link:hover { text-decoration: underline; }

/* ---------- Main content ---------- */
.main-content { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
    background: #fff;
    padding: 16px 26px;
    border-bottom: 1px solid #e2e5ea;
}
.topbar h2 { font-size: 19px; color: #003366; }
.page-body { padding: 24px 26px; }

/* ---------- Dashboard cards ---------- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 20px;
}
.dash-card {
    background: #fff;
    border: 1px solid #e2e5ea;
    border-left: 4px solid #0059b3;
    border-radius: 8px;
    padding: 20px;
    text-decoration: none;
    color: #003366;
    font-weight: 600;
    font-size: 14px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.dash-card:hover { box-shadow: 0 4px 10px rgba(0,0,0,0.1); transform: translateY(-2px); transition: 0.15s; }

/* ---------- Forms ---------- */
.form-box {
    background: #fff;
    border: 1px solid #e2e5ea;
    border-radius: 8px;
    padding: 24px;
    max-width: 420px;
    display: flex;
    flex-direction: column;
}
.form-box label { font-size: 13px; margin-top: 12px; margin-bottom: 4px; color: #333; }
.form-box input, .form-box select {
    padding: 9px 11px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 14px;
}
.form-box button {
    margin-top: 20px;
    padding: 10px;
    background: #003366;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
}
.form-box button:hover { background: #00509e; }

/* ---------- Upload pages (Bulk + Single side by side) ---------- */
.upload-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    align-items: start;
}
.upload-box h3 { color: #003366; font-size: 16px; margin-bottom: 6px; }
.upload-hint { font-size: 13px; color: #666; margin-bottom: 14px; line-height: 1.5; }
.upload-box input[type="file"] {
    padding: 8px 0;
    border: none;
    font-size: 13px;
}

/* ---------- Analytics pages ---------- */
.analytics-filter-bar {
    background: #fff;
    border: 1px solid #e2e5ea;
    border-radius: 8px;
    padding: 14px 18px;
    margin-bottom: 20px;
}
.inline-filter-form {
    display: flex;
    align-items: center;
    gap: 10px;
}
.inline-filter-form label {
    font-size: 13px;
    color: #333;
    font-weight: 600;
}
.inline-filter-form select {
    padding: 8px 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 14px;
    min-width: 160px;
}
.chart-box {
    background: #fff;
    border: 1px solid #e2e5ea;
    border-radius: 8px;
    padding: 20px;
}

/* ---------- Tables ---------- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border: 1px solid #e2e5ea;
    border-radius: 8px;
    overflow: hidden;
}
.data-table th, .data-table td {
    padding: 10px 14px;
    text-align: left;
    font-size: 13px;
    border-bottom: 1px solid #eef0f3;
}
.data-table th {
    background: #f0f3f7;
    color: #003366;
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.4px;
}
.data-table tr:hover td { background: #fafbfd; }

.btn-small {
    padding: 5px 10px;
    font-size: 12px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    color: #fff;
    margin-right: 4px;
}
.btn-ok { background: #2e7d32; }
.btn-warn { background: #e6a100; }
.btn-danger { background: #c62828; }