:root {
    --navy: #1f2d3d;
    --navy-light: #2c4053;
    --slate: #4a5b6c;
    --teal: #1c7c72;
    --teal-dark: #145f58;
    --amber: #c97a2b;
    --red: #b3452c;
    --bg: #f4f6f7;
    --card-bg: #ffffff;
    --border: #dde3e7;
    --text: #24313d;
    --text-muted: #6b7a87;
    --radius: 6px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.5;
}

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Top navigation ---------- */
.topbar {
    background: var(--navy);
    color: #fff;
    border-bottom: 3px solid var(--teal);
}
.topbar-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 0 24px;
    height: 56px;
    gap: 28px;
}
.brand {
    color: #fff;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 0.3px;
    white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.mainnav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
    flex-wrap: wrap;
}
.mainnav a {
    color: #cbd8e0;
    padding: 8px 12px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
}
.mainnav a:hover, .mainnav a.active {
    background: var(--navy-light);
    color: #fff;
    text-decoration: none;
}
.dropdown { position: relative; }
.dropdown-toggle { cursor: pointer; }
.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    min-width: 200px;
    z-index: 50;
    padding: 6px 0;
}
.dropdown:hover .dropdown-menu, .dropdown:focus-within .dropdown-menu { display: block; }
.dropdown-menu a {
    display: block;
    color: var(--text);
    padding: 8px 16px;
    border-radius: 0;
}
.dropdown-menu a:hover { background: var(--bg); text-decoration: none; }
.topbar-user {
    display: flex;
    align-items: center;
    gap: 14px;
    white-space: nowrap;
}
.user-chip { color: #fff; font-size: 14px; }
.level-tag {
    background: var(--teal);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 10px;
    margin-left: 6px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}
.logout-link { color: #cbd8e0; font-size: 14px; }

/* ---------- Page layout ---------- */
.page-wrap {
    max-width: 1400px;
    margin: 0 auto;
    padding: 28px 24px 60px;
}
.page-title {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 18px;
    color: var(--navy);
}
.site-footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
    padding: 20px;
}

/* ---------- Flash messages ---------- */
.flash {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 18px;
    font-size: 14px;
}
.flash-success { background: #e2f4ef; color: var(--teal-dark); border: 1px solid #b6e2d6; }
.flash-error { background: #fbe8e3; color: var(--red); border: 1px solid #f3c6b8; }

/* ---------- Cards / dashboard ---------- */
.dash-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
}
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
}
.card-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.card-head h2 { font-size: 16px; margin: 0; color: var(--navy); }
.card-link { font-size: 13px; }
.task-list, .module-list { list-style: none; margin: 0; padding: 0; }
.task-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    flex-wrap: wrap;
}
.task-list li:last-child { border-bottom: none; }
.module-list li { padding: 6px 0; font-size: 14px; }
.muted { color: var(--text-muted); font-size: 13px; }

/* ---------- Tags / badges ---------- */
.tag {
    font-size: 11px;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    white-space: nowrap;
}
.tag-late { background: #fbe0d9; color: var(--red); }
.tag-today { background: #fdecd2; color: var(--amber); }
.tag-upcoming { background: #dcf0ea; color: var(--teal-dark); }

.badge {
    font-size: 12px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 12px;
    display: inline-block;
}
.badge-pending { background: #fdecd2; color: var(--amber); }
.badge-progress { background: #dce8fb; color: #2b5fa8; }
.badge-done { background: #dcf0ea; color: var(--teal-dark); }
.badge-danger { background: #fbe0d9; color: var(--red); }

/* ---------- Tables ---------- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.data-table th {
    background: var(--navy);
    color: #fff;
    text-align: left;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 600;
}
.data-table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: #fafcfc; }
.row-muted td { color: var(--text-muted); }
.empty-state { text-align: center; color: var(--text-muted); padding: 24px; }
.actions-cell a, .actions-cell .link-btn { margin-right: 12px; font-size: 13px; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 9px 18px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
}
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-dark); text-decoration: none; }
.btn-secondary { background: #fff; color: var(--navy); border-color: var(--border); }
.btn-secondary:hover { background: var(--bg); text-decoration: none; }
.btn-block { width: 100%; }
.link-btn {
    background: none;
    border: none;
    color: var(--red);
    cursor: pointer;
    font-size: 13px;
    padding: 0;
}
.link-btn:hover { text-decoration: underline; }

.page-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}
.filter-pills { display: flex; gap: 8px; }
.pill {
    background: #fff;
    border: 1px solid var(--border);
    padding: 6px 14px;
    border-radius: 16px;
    font-size: 13px;
    color: var(--text);
}
.pill:hover { background: var(--bg); text-decoration: none; }
.pill-active { background: var(--navy); color: #fff; border-color: var(--navy); }

/* ---------- Forms ---------- */
.form-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    max-width: 720px;
}
.form-card label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--navy);
    margin: 16px 0 6px;
}
.form-card label:first-child { margin-top: 0; }
.form-card input[type=text],
.form-card input[type=email],
.form-card input[type=password],
.form-card input[type=date],
.form-card input[type=number],
.form-card select,
.form-card textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    background: #fff;
    color: var(--text);
}
.form-card textarea { resize: vertical; }
.form-card select[multiple] { padding: 6px; }
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.form-actions { margin-top: 22px; display: flex; gap: 10px; }
.field-hint { font-size: 12px; color: var(--text-muted); margin: 6px 0 0; }

/* ---------- Auth pages ---------- */
.auth-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--navy);
}
.auth-box {
    background: #fff;
    border-radius: var(--radius);
    padding: 36px 32px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}
.auth-box h1 { margin: 0 0 4px; font-size: 22px; color: var(--navy); }
.auth-subtitle { margin: 0 0 20px; color: var(--text-muted); font-size: 14px; }
.auth-box label { display: block; font-size: 13px; font-weight: 600; margin: 14px 0 6px; color: var(--navy); }
.auth-box input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
}
.auth-box .btn { margin-top: 20px; }
.auth-links { text-align: center; margin-top: 18px; font-size: 13px; }

/* ---------- Detail pages (task / escalation view) ---------- */
.detail-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px;
    max-width: 860px;
}
.detail-head {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border);
    padding-bottom: 18px;
    margin-bottom: 18px;
}
.detail-head h2 { margin: 0 0 6px; color: var(--navy); }
.detail-meta p { margin: 4px 0; font-size: 14px; }
.detail-section { margin-bottom: 22px; }
.detail-section h3 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.4px; color: var(--text-muted); margin: 0 0 8px; }
.chip { background: var(--bg); border: 1px solid var(--border); padding: 4px 10px; border-radius: 14px; font-size: 13px; }
.progress-bar { background: var(--bg); border-radius: 8px; height: 10px; overflow: hidden; }
.progress-fill { background: var(--teal); height: 100%; }

.comment {
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
}
.comment:last-of-type { border-bottom: none; }
.comment-meta { font-size: 12px; color: var(--text-muted); margin: 0 0 4px; }
.comment-form { margin-top: 14px; display: flex; flex-direction: column; gap: 10px; }
.comment-form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 14px;
}
.comment-form .btn { align-self: flex-start; }

/* ---------- Calendar ---------- */
.calendar-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}
.calendar-nav h2 { margin: 0; color: var(--navy); font-size: 18px; }
.calendar-legend { display: flex; gap: 10px; margin-bottom: 12px; }
.calendar-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    table-layout: fixed;
}
.calendar-table th {
    background: var(--navy);
    color: #fff;
    padding: 8px;
    font-size: 12px;
    text-transform: uppercase;
}
.calendar-table td {
    border: 1px solid var(--border);
    vertical-align: top;
    height: 100px;
    padding: 6px;
    font-size: 12px;
}
.cal-empty { background: #fafbfc; }
.cal-today { background: #fdf6ea; }
.cal-daynum { font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.cal-item {
    display: block;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
    margin-bottom: 3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .topbar-inner { flex-wrap: wrap; height: auto; padding: 10px 16px; }
    .mainnav { order: 3; width: 100%; }
    .form-row { grid-template-columns: 1fr; }
    .detail-head { flex-direction: column; }
}