body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #f7fafd;
    margin: 0;
    color: #22355e;
}
header {
    background: #ffffff;
    box-shadow: 0 2px 10px #e2e9f7;
    padding: 24px 0;
    text-align: center;
    border-bottom: 3px solid #2165b5;
}
header h1 {
    margin: 0;
    font-size: 2.5em;
    color: #2165b5;
    font-weight: 700;
    letter-spacing: 2px;
}
nav a {
    color: #2165b5;
    text-decoration: none;
    padding: 0 14px;
    font-size: 1.1em;
    font-weight: 500;
}
nav a:hover {
    color: #193a73;
    border-bottom: 2px solid #2165b5;
}
main {
    max-width: 960px;
    margin: 40px auto 0 auto;
    background: #ffffff;
    border-radius: 24px;
    box-shadow: 0 0 28px #cfe7fa;
    padding: 50px 50px 30px 50px;
}
section { margin-bottom: 54px; }
h2 { color: #193a73; margin-bottom: 12px; font-weight: 600; }
.mainhall {
    width: 100%;
    max-height: 300px;
    object-fit: cover;
    border-radius: 16px;
    margin-bottom: 24px;
    box-shadow: 0 0 40px #d2eaf9;
}
ul, .features {
    margin: 18px 0;
    font-size: 1.06em;
    color: #183383;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 18px;
    font-size: 1em;
}
th, td {
    text-align: left;
    padding: 9px 8px;
    border-bottom: 1px solid #eaf3fa;
}
th {
    background: #e1ecfa;
    color: #22355e;
}
.review {
    border-top: 2px solid #e6f0fa;
    padding: 18px 0;
}
.stars {
    color: #2165b5;
    font-weight: bold;
    letter-spacing: 2px;
}
.review b { color: #22355e; }
.map { margin-top: 12px; }
form label {
    display: block;
    margin: 12px 0 8px 0;
    color: #22355e;
}
form input {
    padding: 7px 12px;
    border: 1px solid #cfe7fa;
    border-radius: 7px;
    background: #f5faff;
    margin-top: 2px;
    margin-bottom: 3px;
    color: #22355e;
}
button {
    background: #2165b5;
    color: #fff;
    border: none;
    border-radius: 9px;
    padding: 12px 26px;
    font-size: 1.08em;
    margin-top: 8px;
    cursor: pointer;
    transition: background 0.2s;
}
button:hover {
    background: #193a73;
}
#calendar {
    margin-bottom: 22px;
}
.calendar-day {
    display: inline-block;
    width: 36px;
    height: 36px;
    margin: 2px;
    text-align: center;
    vertical-align: middle;
    line-height: 36px;
    border-radius: 8px;
    background: #e1ecfa;
    color: #2165b5;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid #ccddef;
    transition: background 0.15s, color 0.15s;
}
.calendar-day.busy {
    background: #c4cce7;
    color: #fff;
    cursor: not-allowed;
}
.calendar-day.selected {
    background: #2165b5;
    color: #fff;
    border: 2px solid #193a73;
}
#response {
    margin-top: 15px;
    color: #059f2d;
    font-weight: 500;
}
footer {
    text-align: center;
    color: #aab5cc;
    font-size: 1em;
    padding: 24px 0 0;
    border-top: 3px solid #2165b5;
    background: #f7fafd;
    margin-top: 30px;
}