:root {
    --bg: #f4f6f8;
    --panel: #ffffff;
    --text: #17212b;
    --muted: #6b7785;
    --border: #dde3e9;
    --primary: #176b4d;
    --primary-dark: #0e5038;
    --sidebar: #14231d;
    --danger: #b42318;
    --shadow: 0 8px 24px rgba(23, 33, 43, .07);
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
}
a { color: var(--primary); text-decoration: none; }
button, input, select, textarea { font: inherit; }
.app-shell { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.sidebar {
    background: var(--sidebar);
    color: white;
    padding: 24px 18px;
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
}
.brand { display: flex; gap: 12px; align-items: center; margin-bottom: 28px; }
.brand-mark, .login-logo {
    width: 46px; height: 46px; border-radius: 14px;
    display: grid; place-items: center;
    background: white; color: var(--primary-dark); font-weight: 900;
}
.brand small { display: block; color: #a9b8b1; margin-top: 3px; }
.nav { display: grid; gap: 6px; }
.nav a, .nav-disabled {
    padding: 11px 12px; border-radius: 9px; color: #e8f0ec;
}
.nav a:hover { background: rgba(255,255,255,.09); }
.nav-disabled { color: #72827a; cursor: not-allowed; }
.nav-section {
    margin: 18px 12px 5px; font-size: 11px; text-transform: uppercase;
    letter-spacing: .12em; color: #819188;
}
.logout-form { margin-top: auto; }
.logout-form button {
    width: 100%; border: 1px solid rgba(255,255,255,.18); background: transparent;
    color: white; padding: 11px; border-radius: 9px; cursor: pointer;
}
.main { min-width: 0; }
.topbar {
    display: flex; justify-content: space-between; gap: 20px; align-items: center;
    padding: 24px 32px 10px;
}
.topbar h1 { margin: 0; font-size: 28px; }
.topbar p { margin: 5px 0 0; color: var(--muted); }
.user-chip { background: white; border: 1px solid var(--border); padding: 10px 14px; border-radius: 999px; }
.content { padding: 20px 32px 40px; }
.messages { padding: 10px 32px 0; }
.message { padding: 13px 15px; border-radius: 9px; background: #eaf6ef; border: 1px solid #b9ddc8; }
.message.error { background: #fff0ef; border-color: #f3b6b1; color: var(--danger); }
.stats-grid {
    display: grid; grid-template-columns: repeat(6, minmax(130px, 1fr));
    gap: 14px; margin-bottom: 20px;
}
.stat-card, .panel {
    background: var(--panel); border: 1px solid var(--border);
    border-radius: 14px; box-shadow: var(--shadow);
}
.stat-card { padding: 18px; }
.stat-card span { color: var(--muted); font-size: 13px; display: block; }
.stat-card strong { display: block; font-size: 29px; margin-top: 7px; }
.panel { padding: 20px; margin-bottom: 20px; }
.panel h2 { margin: 0; font-size: 18px; }
.panel p { color: var(--muted); margin: 5px 0 0; }
.panel-header {
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; margin-bottom: 16px;
}
.two-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.empty { text-align: center; color: var(--muted); padding: 30px; }
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--border); background: white; color: var(--text);
    padding: 10px 14px; border-radius: 9px; cursor: pointer; font-weight: 700;
}
.btn.primary { background: var(--primary); border-color: var(--primary); color: white; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.full { width: 100%; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; }
.filters input, .filters select {
    border: 1px solid var(--border); border-radius: 9px; padding: 10px 12px; background: white;
}
.form-panel { max-width: 1100px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 17px 20px; }
.field { display: grid; gap: 7px; align-content: start; }
.field-wide { grid-column: 1 / -1; }
.field label { font-weight: 700; font-size: 13px; }
.field small { color: var(--muted); }
.form-control {
    width: 100%; border: 1px solid var(--border); border-radius: 9px;
    padding: 11px 12px; background: white; min-height: 42px;
}
textarea.form-control { min-height: 100px; resize: vertical; }
.field-error { color: var(--danger); font-size: 13px; }
.form-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }
.badge {
    display: inline-block; padding: 5px 9px; border-radius: 999px;
    background: #eaf6ef; color: var(--primary-dark); font-size: 12px; font-weight: 800;
}
.detail-actions { display: flex; justify-content: flex-end; gap: 10px; margin-bottom: 14px; }
.profile-grid { display: grid; grid-template-columns: 260px 1fr 1fr; gap: 20px; }
.profile-card { text-align: center; }
.employee-photo, .photo-placeholder {
    width: 110px; height: 110px; border-radius: 50%; margin: 5px auto 14px;
    object-fit: cover;
}
.photo-placeholder {
    display: grid; place-items: center; background: #e8efeb;
    color: var(--primary-dark); font-size: 34px; font-weight: 900;
}
.detail-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.detail-list div { padding: 10px 0; border-bottom: 1px solid var(--border); }
.detail-list dt { color: var(--muted); font-size: 12px; }
.detail-list dd { margin: 4px 0 0; font-weight: 700; }
.login-body {
    min-height: 100vh; display: grid; place-items: center;
    background: linear-gradient(135deg, #10231b, #1e6f50);
    padding: 20px;
}
.login-card {
    width: min(420px, 100%); background: white; border-radius: 18px;
    padding: 34px; box-shadow: 0 22px 60px rgba(0,0,0,.25);
}
.login-card .login-logo { background: var(--primary); color: white; margin-bottom: 16px; }
.login-card h1 { margin: 0; }
.login-card p { color: var(--muted); margin: 6px 0 22px; }
.stack-form { display: grid; gap: 9px; }
.stack-form input {
    width: 100%; border: 1px solid var(--border); border-radius: 9px;
    padding: 12px; margin-bottom: 8px;
}
@media (max-width: 1100px) {
    .stats-grid { grid-template-columns: repeat(3, 1fr); }
    .profile-grid { grid-template-columns: 1fr 1fr; }
    .profile-card { grid-column: 1 / -1; }
}
@media (max-width: 760px) {
    .app-shell { grid-template-columns: 1fr; }
    .sidebar { position: static; height: auto; }
    .nav { grid-template-columns: 1fr 1fr; }
    .logout-form { margin-top: 20px; }
    .topbar, .content, .messages { padding-left: 16px; padding-right: 16px; }
    .topbar { align-items: flex-start; }
    .stats-grid, .two-columns, .profile-grid, .form-grid { grid-template-columns: 1fr; }
    .detail-list { grid-template-columns: 1fr; }
    .panel-header { align-items: flex-start; flex-direction: column; }
}