@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --ink: #1c2333;
    --navy-900: #161b2e;
    --navy-800: #202849;
    --navy-700: #2b3660;
    --indigo-500: #4a5bd4;
    --indigo-600: #3c4bc0;
    --amber: #e0a530;
    --amber-dark: #c68d1e;
    --bg: #f4f5f9;
    --line: #dfe2ec;
    --muted: #6b7280;
    --danger: #c0392b;
    --success: #1f8a4c;
    --radius: 6px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    color: var(--ink);
    background: var(--bg);
    font-size: 14.5px;
    line-height: 1.55;
}

h1, h2, h3 { margin: 0 0 0.4em; font-weight: 700; letter-spacing: -0.01em; }
a { color: var(--indigo-600); }

/* ---- Buttons ---- */
.btn {
    display: inline-block;
    background: var(--indigo-500);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 13.5px;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s ease;
}
.btn:hover { background: var(--indigo-600); }
.btn-outline { background: transparent; border: 1px solid var(--navy-700); color: var(--navy-700); }
.btn-outline:hover { background: var(--navy-700); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-small { padding: 6px 14px; font-size: 12.5px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---- Cards / forms / alerts ---- */
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--navy-800); }
.form-row input, .form-row select, .form-row textarea {
    width: 100%; padding: 9px 12px; border: 1px solid var(--line); border-radius: var(--radius);
    font-family: inherit; font-size: 13.5px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.alert { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 20px; font-size: 13.5px; }
.alert-error { background: #fbe9e6; color: var(--danger); border: 1px solid #f0c4bc; }
.alert-success { background: #e5f5ea; color: var(--success); border: 1px solid #b9e2c6; }

/* ---- Login page ---- */
.login-shell {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(150deg, var(--navy-900), var(--navy-700));
    padding: 20px;
}
.login-card { width: 360px; background: #fff; border-radius: var(--radius); padding: 32px; }
.login-brand { text-align: center; margin-bottom: 22px; }
.login-brand .logo-mark {
    width: 44px; height: 44px; border-radius: 10px; margin: 0 auto 10px;
    background: linear-gradient(135deg, var(--indigo-500), var(--navy-800));
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 700; font-size: 18px;
}
.login-brand h1 { font-size: 18px; margin: 0; }
.login-brand p { color: var(--muted); font-size: 12.5px; margin: 4px 0 0; }
.role-tabs { display: flex; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-bottom: 20px; }
.role-tabs label { flex: 1; text-align: center; padding: 9px 0; font-size: 13px; cursor: pointer; color: var(--muted); }
.role-tabs input { display: none; }
.role-tabs input:checked + span { display: block; }
.role-tabs label.active { background: var(--navy-900); color: #fff; font-weight: 600; }

/* ---- Dashboard shell (shared by admin/ and staff/) ---- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(22,27,46,0.55); z-index: 40; opacity: 0; transition: opacity 0.2s ease;
}
.sidebar-overlay.visible { display: block; opacity: 1; }

.app-sidebar {
    width: 240px; background: var(--navy-900); color: #cdd3e6;
    flex-shrink: 0; display: flex; flex-direction: column;
}
.sidebar-head { display: flex; align-items: center; justify-content: space-between; padding: 22px 22px 18px; }
.sidebar-brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 16px; }
.sidebar-brand .logo-mark {
    width: 30px; height: 30px; border-radius: 8px; flex-shrink: 0;
    background: linear-gradient(135deg, var(--indigo-500), var(--navy-700));
    display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; color: #fff;
}
.sidebar-close { display: none; background: none; border: none; color: #fff; font-size: 26px; line-height: 1; cursor: pointer; }

.sidebar-section-label { font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.08em; color: #7c85a6; padding: 14px 22px 6px; }
.sidebar-nav { padding: 0 12px; display: flex; flex-direction: column; gap: 2px; }
.sidebar-nav a {
    display: flex; align-items: center; gap: 12px; color: #cdd3e6; text-decoration: none;
    padding: 10px 12px; font-size: 13.5px; border-radius: 6px; border-left: 3px solid transparent;
}
.sidebar-nav a svg { width: 18px; height: 18px; fill: currentColor; flex-shrink: 0; opacity: 0.8; }
.sidebar-nav a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.sidebar-nav a.active { background: rgba(255,255,255,0.08); color: #fff; border-left-color: var(--amber); }
.sidebar-nav a.active svg { opacity: 1; }
.sidebar-divider { height: 1px; background: rgba(255,255,255,0.1); margin: 14px 12px; }

.app-main { flex: 1; background: var(--bg); min-width: 0; display: flex; flex-direction: column; }
.app-topbar {
    background: #fff; border-bottom: 1px solid var(--line); padding: 14px 28px;
    display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; z-index: 20;
}
.topbar-left { display: flex; align-items: center; gap: 14px; }
.sidebar-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 6px; padding: 6px; cursor: pointer; color: var(--navy-900); }
.sidebar-toggle svg { width: 20px; height: 20px; fill: currentColor; display: block; }
.page-title { margin: 0; font-size: 17px; color: var(--navy-900); }

.topbar-right { display: flex; align-items: center; gap: 16px; }
.role-pill {
    font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700;
    padding: 3px 10px; border-radius: 20px; background: #eceffb; color: var(--indigo-600);
}
.user-menu { position: relative; }
.user-menu-trigger { display: flex; align-items: center; gap: 10px; background: none; border: none; cursor: pointer; padding: 4px; }
.avatar {
    width: 32px; height: 32px; border-radius: 50%; background: var(--amber); color: var(--navy-900);
    display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px; flex-shrink: 0;
    overflow: hidden;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.user-name { font-size: 13px; color: var(--ink); }
.user-menu-trigger .chev { width: 16px; height: 16px; fill: var(--muted); }
.user-menu-dropdown {
    display: none; position: absolute; right: 0; top: calc(100% + 8px);
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
    box-shadow: 0 10px 26px rgba(22,27,46,0.14); min-width: 180px; overflow: hidden; z-index: 30;
}
.user-menu-dropdown.open { display: block; }
.user-menu-dropdown a { display: block; padding: 11px 16px; font-size: 13px; color: var(--ink); text-decoration: none; }
.user-menu-dropdown a:hover { background: var(--bg); }

.app-content { padding: 26px 28px 60px; flex: 1; }

/* ---- Stat cards / charts ---- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; margin-bottom: 26px; }
.stat-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.stat-card .label { font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.stat-card .value { font-size: 26px; font-weight: 700; color: var(--navy-900); margin-top: 6px; }
.stat-card .sub { font-size: 12px; color: var(--muted); margin-top: 4px; }

.chart-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; margin-bottom: 22px; }
.chart-card h3 { font-size: 15px; margin-bottom: 4px; }
.chart-tabs { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.chart-tabs button {
    background: var(--bg); border: 1px solid var(--line); border-radius: 20px;
    padding: 6px 16px; font-size: 12.5px; cursor: pointer; color: var(--navy-700);
}
.chart-tabs button.active { background: var(--navy-900); color: #fff; border-color: var(--navy-900); }

/* ---- Tables ---- */
.table-responsive { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table.data-table { width: 100%; border-collapse: collapse; background: #fff; border: none; min-width: 600px; }
table.data-table th, table.data-table td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); font-size: 13px; }
table.data-table th { background: var(--bg); text-transform: uppercase; font-size: 10.5px; letter-spacing: 0.05em; color: var(--muted); }
table.data-table tr:hover td { background: #fafbfd; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11.5px; font-weight: 600; }
.badge-pending { background: #fdf2dd; color: var(--amber-dark); }
.badge-approved { background: #e5f5ea; color: var(--success); }
.badge-rejected { background: #fbe9e6; color: var(--danger); }

.filter-bar { display: flex; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; align-items: flex-end; }
.filter-bar .field label { display: block; font-size: 11.5px; color: var(--muted); margin-bottom: 4px; }
.filter-bar input, .filter-bar select { padding: 8px 10px; border: 1px solid var(--line); border-radius: var(--radius); font-family: inherit; font-size: 13px; }

.progress-bar { height: 8px; background: var(--line); border-radius: 20px; overflow: hidden; }
.progress-bar span { display: block; height: 100%; background: var(--indigo-500); }

.announcement-item { border-bottom: 1px solid var(--line); padding: 14px 0; }
.announcement-item:last-child { border-bottom: none; }
.announcement-item h4 { margin: 0 0 4px; font-size: 14px; }
.announcement-item .meta { font-size: 11.5px; color: var(--muted); margin-bottom: 6px; }
.announcement-item p { margin: 0; font-size: 13px; color: #414868; }

/* ---- Mobile ---- */
@media (max-width: 900px) {
    .app-sidebar {
        position: fixed; top: 0; left: 0; bottom: 0; transform: translateX(-100%);
        transition: transform 0.22s ease; z-index: 50; box-shadow: 8px 0 24px rgba(0,0,0,0.2);
    }
    .app-sidebar.open { transform: translateX(0); }
    .sidebar-close { display: block; }
    .sidebar-toggle { display: inline-flex; }
    .app-topbar { padding: 12px 16px; }
    .app-content { padding: 18px 16px 48px; }
    .user-name { display: none; }
    .page-title { font-size: 15px; }
}
@media (max-width: 560px) {
    .stat-grid { grid-template-columns: 1fr 1fr; }
    .form-grid { grid-template-columns: 1fr; gap: 0; }
}