/* Base Styles */
:root {
    --primary-color: #3498db;
    --secondary-color: #2980b9;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --text-color: #333;
    --text-light: #fff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Open Sans', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background */
.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/travel-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    z-index: -1;
    opacity: 0.8;
    filter: brightness(0.9);
}

/* Layout */
.container {
    display: flex;
    min-height: 100vh;
}

.main-content {
    width: 75%;
    padding: 2rem;
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(5px);
}

.sidebar {
    width: 25%;
    padding: 1.5rem;
    background-color: rgba(40, 40, 40, 0.85);
    color: var(--text-light);
    backdrop-filter: blur(5px);
}

/* Main Content Styles */
.city-content {
    max-width: 900px;
    margin: 0 auto;
}

.city-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    margin: 2rem 0;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.city-description {
    margin-top: 2rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.city-description p {
    margin-bottom: 1rem;
}

/* Sidebar Styles */
.search-box {
    margin-bottom: 2rem;
}

.search-box input[type="text"] {
    width: 100%;
    padding: 0.75rem;
    border: none;
    border-radius: 4px;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.search-box button {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.search-box button:hover {
    background-color: var(--secondary-color);
}

.sidebar-title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--light-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.city-nav ul {
    list-style: none;
    margin-bottom: 2rem;
}

.city-nav li {
    margin-bottom: 0.5rem;
}

.city-nav a {
    display: block;
    padding: 0.75rem;
    color: var(--light-color);
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s;
}

.city-nav a:hover, .city-nav a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--primary-color);
    padding-left: 1rem;
}

.about-us p {
    font-size: 0.95rem;
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .main-content {
        width: 70%;
    }
    .sidebar {
        width: 30%;
    }
}

@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    .main-content, .sidebar {
        width: 100%;
    }
    .sidebar {
        order: -1;
        padding-top: 1rem;
    }
    .city-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 1.5rem;
    }
    .sidebar {
        padding: 1rem;
    }
    .city-title {
        font-size: 1.8rem;
    }
}