:root {
    --primary: #4f46e5; /* Indigo */
    --primary-hover: #4338ca;
    --bg: #f3f4f6;
    --card-bg: #ffffff;
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --success: #10b981;
    --danger: #ef4444;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Segoe UI', Roboto, Helvetica, sans-serif; }
body { background-color: var(--bg); color: var(--text-main); line-height: 1.5; }

/* Layout */
.navbar {
    background: var(--card-bg);
    padding: 1rem 2rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.brand { font-size: 1.25rem; font-weight: 700; color: var(--primary); }
.container { max-width: 1200px; margin: 2rem auto; padding: 0 1rem; }

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    margin-bottom: 2rem;
}

/* Forms & Inputs */
.form-group { margin-bottom: 1rem; }
label { display: block; margin-bottom: 0.5rem; color: var(--text-muted); font-size: 0.9rem; }
input[type="text"], input[type="password"], input[type="date"] {
    width: 100%; padding: 0.75rem; border: 1px solid var(--border); border-radius: 0.5rem; transition: border 0.2s;
}
input:focus { outline: none; border-color: var(--primary); ring: 2px solid var(--primary); }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 0.75rem 1.5rem; border-radius: 0.5rem; border: none; font-weight: 600; cursor: pointer; transition: all 0.2s; text-decoration: none; color: white;
}
.btn-primary { background: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-logout { background: transparent; color: var(--text-muted); border: 1px solid var(--border); padding: 0.5rem 1rem; font-size: 0.9rem; }
.btn-logout:hover { background: #f9fafb; color: var(--danger); border-color: var(--danger); }

/* Table */
.table-container { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th { text-align: left; padding: 1rem; background: #f9fafb; color: var(--text-muted); font-weight: 600; border-bottom: 1px solid var(--border); }
td { padding: 1rem; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: none; }
tr:hover { background: #f9fafb; }

/* Badges */
.badge { padding: 0.25rem 0.6rem; border-radius: 9999px; font-size: 0.75rem; font-weight: 600; display: inline-block; margin-bottom: 5px; }
.badge-success { background: #d1fae5; color: #065f46; }
.badge-warning { background: #fee2e2; color: #991b1b; }

/* Login Page Specific */
.login-wrapper { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login-card { width: 100%; max-width: 400px; }
.controls-row { display: flex; gap: 1rem; align-items: flex-end; flex-wrap: wrap; }
.separator { width: 1px; background: var(--border); height: 40px; margin: 0 1rem; }