* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    /* color: #333; */
}

header {
    margin-bottom: 24px;
    text-align: center;
}

header h1 {
    font-size: 1.6rem;
    font-weight: 600;
}

#search {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

#city-input {
    flex: 1;
    padding: 10px;
    font-size: 1rem;
}

#search-btn {
    padding: 10px 14px;
    font-size: 1rem;
    border: none;
    border-radius: 4px;
    color: white;
    cursor: pointer;
}

#search-btn:hover {
    background-color: darkgray;
}

#controls {
    text-align: center;
    margin-bottom: 16px;
}

#toggle-unit {
    background: transparent;
    border: 1px solid #ccc;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
}

#toggle-unit:hover {
    background-color: #f0f0f0;
}

#weather {
    text-align: center;
    margin-bottom: 16px;
}

#city-name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
}

#temperature {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

#description {
    color: #555;
}

main {
    width: 100%;
    max-width: 420px;
    padding: 24px;
    border-radius: 8px;
}

#error {
    margin-top: 12px;
    text-align: center;
    color: #b91c1c;
    font-size: 0.95rem;
}