body {
    font-family: Arial, sans-serif;
    max-width: 900px;
    margin: 30px auto;
    padding: 0 15px;
    color: #222;
    background: #f7f7f8;
}
h1, h2 { color: #1976d2; }
.card {
    background: #fff;
    border-radius: 8px;
    padding: 20px 25px;
    box-shadow: 0 1px 4px rgba(0,0,0,.1);
    margin-bottom: 20px;
}
label { display: block; margin-top: 12px; font-weight: bold; }
input[type=text], input[type=email], input[type=password], input[type=tel] {
    width: 100%;
    padding: 8px;
    margin-top: 4px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}
button, .btn {
    display: inline-block;
    margin-top: 16px;
    padding: 10px 18px;
    background: #1976d2;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 15px;
    text-decoration: none;
}
button:hover, .btn:hover { background: #125aa0; }
button:disabled { background: #ccc; cursor: not-allowed; }
.btn-danger { background: #c62828; }
.btn-danger:hover { background: #9c1f1f; }
.error { color: #c62828; font-weight: bold; }
.success { color: #2e7d32; font-weight: bold; }
table { border-collapse: collapse; width: 100%; margin-top: 15px; background: #fff; }
th, td { border: 1px solid #ddd; padding: 8px 10px; text-align: center; }
th { background: #eee; }
.day-header { background: #1976d2; color: #fff; font-size: 16px; }
.seats-free { color: #2e7d32; font-weight: bold; }
.seats-low { color: #e65100; font-weight: bold; }
.seats-full { color: #c62828; font-weight: bold; }
.topbar { display: flex; justify-content: space-between; align-items: center; }
.topbar a { color: #1976d2; }

@keyframes popupFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes popupScaleIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.week-separator {
    margin: 30px 0 12px;
    padding: 10px 16px;
    background: #1976d2;
    color: #fff;
    font-weight: bold;
    font-size: 15px;
    border-radius: 6px;
}
.week-tint-0 { background: #fff; }
.week-tint-1 { background: #f5f8fc; }