:root {
    --bg: #f4f6f9;
    --card-bg: #ffffff;
    --text: #333;
    --sub-text: #6c757d;
    --row-bg: #f8f9fa;
    --row-border: #e9ecef;
    --shadow: rgba(0, 0, 0, 0.1);
    --btn-bg: #4361ee;
    --btn-hover: #3f37c9;
}
[data-theme="dark"] {
    --bg: #1a1d24;
    --card-bg: #252a34;
    --text: #f1f1f1;
    --sub-text: #9aa4b2;
    --row-bg: #2e3440;
    --row-border: #3b414d;
    --shadow: rgba(0, 0, 0, 0.4);
    --btn-bg: #4361ee;
    --btn-hover: #5a72f0;
}
body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: var(--bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 24px 0;
    box-sizing: border-box;
    gap: 20px;
    transition: background-color 0.3s;
}
.container {
    background-color: var(--card-bg);
    padding: 32px;
    border-radius: 18px;
    box-shadow: 0 14px 30px var(--shadow);
    text-align: center;
    max-width: 520px;
    width: 100%;
    position: relative;
    transition: background-color 0.3s;
}
h1 {
    color: var(--text);
    margin-bottom: 25px;
    font-size: 24px;
}
h2 {
    color: var(--text);
    margin: 0 0 8px;
    font-size: 20px;
}
p {
    color: var(--sub-text);
}
/* 제휴문의 폼 */
.form-container {
    text-align: left;
}
.form-container h2,
.form-container > p {
    text-align: center;
}
.form-container > p {
    margin-bottom: 20px;
}
.field {
    margin-bottom: 16px;
}
.field label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: bold;
    color: var(--sub-text);
}
.field input,
.field textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 10px 12px;
    font-size: 15px;
    font-family: inherit;
    color: var(--text);
    background-color: var(--row-bg);
    border: 1px solid var(--row-border);
    border-radius: 8px;
    transition: border 0.2s;
}
.field input:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--btn-bg);
}
.field textarea {
    resize: vertical;
}
.form-status {
    text-align: center;
    font-size: 14px;
    margin: 12px 0 0;
    min-height: 18px;
}
.form-status.success { color: #44bd32; }
.form-status.error { color: #e84118; }
/* 댓글(Disqus) */
.comments-container h2 {
    margin-bottom: 20px;
}
#disqus_thread {
    text-align: left;
}
.theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    width: auto;
    background: transparent;
    border: 1px solid var(--row-border);
    color: var(--text);
    padding: 6px 12px;
    font-size: 14px;
    font-weight: normal;
    border-radius: 20px;
    cursor: pointer;
    margin: 0;
    transition: background 0.2s, border 0.2s;
}
.theme-toggle:hover {
    background-color: var(--row-bg);
}
button {
    background-color: var(--btn-bg);
    color: white;
    border: none;
    padding: 12px 30px;
    font-size: 18px;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
    width: 100%;
    margin-bottom: 25px;
}
button:hover {
    background-color: var(--btn-hover);
}
.lotto-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding: 10px;
    background-color: var(--row-bg);
    border-radius: 8px;
    border: 1px solid var(--row-border);
}
.row-label {
    font-weight: bold;
    color: var(--sub-text);
    font-size: 14px;
    width: 40px;
    text-align: left;
}
.ball-container {
    display: flex;
    gap: 8px;
    justify-content: center;
}
.ball {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-weight: bold;
    font-size: 16px;
    text-shadow: 0px 1px 2px rgba(0,0,0,0.4);
}
/* 로또 공식 색상 기준 적용 */
.ball.range-1 { background: radial-gradient(circle at 30% 30%, #fbc531, #e1b12c); } /* 1~10 노랑 */
.ball.range-2 { background: radial-gradient(circle at 30% 30%, #00a8ff, #0097e6); } /* 11~20 파랑 */
.ball.range-3 { background: radial-gradient(circle at 30% 30%, #e84118, #c23616); } /* 21~30 빨강 */
.ball.range-4 { background: radial-gradient(circle at 30% 30%, #718093, #353b48); } /* 31~40 회색 */
.ball.range-5 { background: radial-gradient(circle at 30% 30%, #4cd137, #44bd32); } /* 41~45 녹색 */