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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
        Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.5;
    background: #f7f7f7;
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header.app-header {
    background: #2a9d8f;
    color: #fff;
    padding: 1rem;
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

header.app-header h1 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 1rem;
    list-style: none;
}

.nav-links a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: background 0.3s;
}

.nav-links a:hover {
    background: rgba(255, 255, 255, 0.2);
}

main {
    flex: 1;
    padding: 1rem;
}

.section {
    margin-bottom: 2rem;
}

.section h2 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: #264653;
}

.card {
    background: #ffffff;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.list-item {
    background: #ffffff;
    border-radius: 8px;
    padding: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.list-item h3 {
    font-size: 1.1rem;
    color: #2a9d8f;
}

.list-item button {
    align-self: flex-start;
    background: #e76f51;
    color: #ffffff;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s;
}

.list-item button:hover {
    background: #d55b43;
}

ul.itinerary {
    list-style: none;
    padding-left: 0;
}

ul.itinerary li {
    margin-bottom: 0.5rem;
    padding: 0.5rem;
    background: #ffffff;
    border-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

footer {
    background: #264653;
    color: #fff;
    text-align: center;
    padding: 1rem;
    font-size: 0.9rem;
}