:root {
    --bg-color: #FFDAB9; /* 따뜻한 주황색 배경 */
    --container-bg: white;
    --text-primary: #333;
    --text-secondary: #555;
    --accent-color: #E67E22;
    --accent-hover: #D35400;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --container-bg: #2d2d2d;
    --text-primary: #f0f0f0;
    --text-secondary: #ccc;
    --accent-color: #F39C12;
    --accent-hover: #E67E22;
    --shadow-color: rgba(0, 0, 0, 0.4);
}

body {
    font-family: 'Nanum Gothic', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    position: relative;
    text-align: center;
    background-color: var(--container-bg);
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 15px 30px var(--shadow-color);
    transition: background-color 0.3s, box-shadow 0.3s;
}

.theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text-primary);
    transition: transform 0.3s;
}

.theme-toggle:hover {
    transform: rotate(20deg);
}

header h1 {
    font-size: 2.8em;
    font-weight: 700;
    color: var(--accent-color);
}

header p {
    font-size: 1.3em;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

main {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.custom-button {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 25px;
    font-size: 1.2em;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.custom-button:hover {
    background-color: var(--accent-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 15px var(--shadow-color);
}

.custom-button i {
    font-size: 1.2em;
}