* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f7fb;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3 {
    margin-top: 0;
}

section {
    padding: 40px 0;
}

header {
    background-color: #1e3a5f;
    color: white;
    padding: 30px 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

header p {
    margin: 5px 0 0 0;
}

nav a {
    color: white;
    text-decoration: none;
    margin-left: 15px;
    font-weight: bold;
}

nav a:hover {
    text-decoration: underline;
}

#hero {
    background-color: #e9f1fb;
    text-align: center;
    padding: 60px 0;
}

#hero h2 {
    font-size: 32px;
    margin-bottom: 10px;
}

#hero p {
    font-size: 18px;
}

.section-status {
    margin-bottom: 20px;
    font-weight: bold;
}

.success-text {
    color: green;
}

.error-text {
    color: red;
}

.rooms {
    display: flex;
    gap: 20px;
}

.room-card {
    background-color: white;
    border: 1px solid #dbe3ec;
    border-radius: 10px;
    padding: 20px;
    flex: 1;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.room-card h3 {
    color: #1e3a5f;
}

.reserve-room-btn {
    margin-top: 12px;
}

form {
    background-color: white;
    padding: 25px;
    border-radius: 10px;
    border: 1px solid #dbe3ec;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

form.is-loading {
    opacity: 0.75;
}

label {
    display: block;
    margin-bottom: 6px;
    font-weight: bold;
}

input,
select,
textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #c7d2de;
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 16px;
}

button {
    background-color: #2d6cdf;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    margin-right: 10px;
    margin-top: 5px;
}

button:hover {
    background-color: #1f56b8;
}

button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

#booking-status {
    margin-top: 15px;
    font-weight: bold;
}

#contact {
    background-color: #eef3f8;
}

#booking-list {
    margin-top: 20px;
}

.booking-item {
    background-color: white;
    border: 1px solid #dbe3ec;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 12px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.booking-item strong {
    color: #1e3a5f;
}

footer {
    background-color: #1e3a5f;
    color: white;
    text-align: center;
    padding: 20px 0;
    margin-top: 30px;
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        align-items: flex-start;
    }

    nav a {
        display: block;
        margin: 8px 0 0 0;
    }

    .rooms {
        flex-direction: column;
    }

    #hero {
        padding: 40px 0;
    }

    #hero h2 {
        font-size: 26px;
    }

    form {
        padding: 20px 15px;
    }

    input,
    select,
    textarea,
    button {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    #hero h2 {
        font-size: 22px;
    }

    .room-card,
    .booking-item,
    form {
        padding: 15px;
    }

    button {
        width: 100%;
        margin-right: 0;
    }
}