:root {
    --primary: #0b5d3b;      /* hospital green */
    --primary-dark: #073d27;
    --accent: #146c94;       /* clinical blue */
    --bg: #f4f7f6;
    --card-bg: #ffffff;
    --text: #1f2a24;
    --muted: #6b7a72;
    --border: #e1e8e4;
    --danger: #c0392b;
    --warning: #b8860b;
    --success: #1e8449;
    --radius: 10px;
    --shadow: 0 2px 10px rgba(0,0,0,0.06);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

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

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

/* ---------- Sidebar ---------- */
.sidebar {
    width: 240px;
    background: var(--primary-dark);
    color: #fff;
    flex-shrink: 0;
    padding: 20px 0;
}
.sidebar .brand {
    padding: 0 20px 20px;
    font-size: 18px;
    font-weight: 700;
    border-bottom: 1px solid rgba(255,255,255,0.12);
    margin-bottom: 12px;
}
.sidebar .brand span { display: block; font-size: 12px; font-weight: 400; opacity: 0.75; }
.sidebar nav a {
    display: block;
    padding: 11px 20px;
    color: #dfeee6;
    font-size: 14.5px;
}
.sidebar nav a:hover, .sidebar nav a.active {
    background: var(--primary);
    color: #fff;
    text-decoration: none;
}

/* ---------- Main area ---------- */
.main { flex: 1; min-width: 0; }
.topbar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.topbar .user-chip { font-size: 14px; color: var(--muted); }
.topbar .user-chip strong { color: var(--text); }
.content { padding: 24px; }

.page-title { font-size: 22px; font-weight: 700; margin: 0 0 18px; color: var(--primary-dark); }

/* ---------- Cards ---------- */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 20px;
}
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat-card { background: var(--card-bg); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; border-left: 4px solid var(--primary); }
.stat-card .num { font-size: 26px; font-weight: 700; color: var(--primary-dark); }
.stat-card .label { font-size: 13px; color: var(--muted); margin-top: 4px; }

/* ---------- Forms ---------- */
label { display: block; font-size: 13.5px; font-weight: 600; margin: 12px 0 5px; color: var(--text); }
input[type=text], input[type=password], input[type=email], input[type=tel], input[type=date],
input[type=search], input[type=file], select, textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: 14px;
    background: #fff;
    color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }
.btn {
    display: inline-block;
    padding: 10px 18px;
    border-radius: 7px;
    border: none;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}
.btn:hover { background: var(--primary-dark); }
.btn.secondary { background: #eef2f0; color: var(--text); }
.btn.secondary:hover { background: #e2e8e5; }
.btn.danger { background: var(--danger); }
.btn.small { padding: 6px 12px; font-size: 13px; }

/* ---------- Tables ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: .03em; }
tr:hover td { background: #fafcfb; }

/* ---------- Badges ---------- */
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge.admin { background: #fde8e8; color: var(--danger); }
.badge.doctor { background: #e8f0fd; color: var(--accent); }
.badge.staff { background: #e9f7ef; color: var(--success); }
.badge.success { background: #e9f7ef; color: var(--success); }
.badge.warning { background: #fdf3e0; color: var(--warning); }
.badge.danger { background: #fde8e8; color: var(--danger); }

/* ---------- Alerts ---------- */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.alert.error { background: #fdecea; color: var(--danger); border: 1px solid #f5c6c2; }
.alert.success { background: #eafaf1; color: var(--success); border: 1px solid #b7ebc6; }

/* ---------- Login page ---------- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary-dark), var(--primary)); }
.login-box { background: #fff; padding: 36px 34px; border-radius: 14px; width: 360px; box-shadow: 0 10px 40px rgba(0,0,0,0.25); }
.login-box h1 { font-size: 20px; text-align: center; color: var(--primary-dark); margin-bottom: 4px; }
.login-box p.sub { text-align: center; color: var(--muted); font-size: 13px; margin-bottom: 20px; }

/* ---------- Category grid on patient profile ---------- */
.category-block { margin-bottom: 22px; }
.category-block h3 { font-size: 15px; color: var(--primary-dark); border-bottom: 2px solid var(--border); padding-bottom: 6px; margin-bottom: 10px; }

/* ---------- Upload widget ---------- */
.dropzone {
    border: 2px dashed #b9c9c1;
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    color: var(--muted);
    background: #fbfdfc;
}
.file-row { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 13.5px; }
.file-row .name { flex: 1; }
.progress-bar { width: 100%; height: 8px; background: #eef2f0; border-radius: 4px; overflow: hidden; }
.progress-bar .fill { height: 100%; background: var(--primary); width: 0%; transition: width .2s; }

@media (max-width: 800px) {
    .app-shell { flex-direction: column; }
    .sidebar { width: 100%; padding: 10px 0; }
    .sidebar nav { display: flex; overflow-x: auto; }
    .sidebar nav a { white-space: nowrap; }
    .sidebar .brand { border-bottom: none; margin-bottom: 4px; }
}