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

:root {
    --primary-color: #1e3a8a;
    --primary-light: #3b82f6;
    --bg-color: #ffffff;
    --text-color: #000000;
    --box-bg: #f3f4f6;
    --border-color: #e5e7eb;
}

body.dark-mode {
    --primary-color: #1e3a8a;
    --primary-light: #3b82f6;
    --bg-color: #1f2937;
    --text-color: #f3f4f6;
    --box-bg: #374151;
    --border-color: #4b5563;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 20px;
}

.header h1 {
    font-size: 28px;
    color: var(--primary-color);
    flex: 1;
    min-width: 250px;
}

.dark-mode-btn {
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.dark-mode-btn:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
}

.dark-mode-btn:active {
    transform: translateY(0);
}

.content {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

/* 운수 섹션 */
.fortune-section {
    background-color: var(--box-bg);
    border: 2px solid var(--primary-color);
    border-radius: 12px;
    padding: 25px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.fortune-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(30, 58, 138, 0.2);
}

.fortune-section h2 {
    text-align: center;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.fortune-input {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.fortune-input input {
    padding: 10px 15px;
    border: 2px solid var(--primary-color);
    border-radius: 8px;
    font-size: 14px;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: border-color 0.3s ease;
}

.fortune-input input:focus {
    outline: none;
    border-color: var(--primary-light);
}

.fortune-btn {
    padding: 10px 25px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.fortune-btn:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
}

.fortune-btn:active {
    transform: translateY(0);
}

.fortune-result {
    text-align: center;
    padding: 20px;
    border-radius: 8px;
    min-height: 50px;
}

.fortune-result.show {
    background-color: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--primary-light);
    animation: slideIn 0.5s ease-out;
}

.fortune-result h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 18px;
}

.fortune-info {
    text-align: left;
    margin-bottom: 15px;
}

.fortune-info p {
    margin: 8px 0;
    line-height: 1.6;
}

.luck-numbers {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 15px;
}

.luck-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    box-shadow: 0 4px 10px rgba(30, 58, 138, 0.3);
}

/* 로또 섹션 */
.lottery-section {
    text-align: center;
}

.lottery-section h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.generate-btn {
    padding: 16px 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    margin-bottom: 40px;
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.generate-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(30, 58, 138, 0.4);
}

.generate-btn:active {
    transform: translateY(-1px);
}

.lottery-boxes {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.lottery-box {
    background-color: var(--box-bg);
    border: 2px solid var(--primary-color);
    border-radius: 12px;
    padding: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.lottery-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(30, 58, 138, 0.2);
}

.lottery-numbers {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 15px;
}

.number-ball {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    box-shadow: 0 4px 10px rgba(30, 58, 138, 0.3);
    animation: popIn 0.5s ease-out;
}

.bonus-separator {
    font-size: 20px;
    color: var(--primary-color);
    font-weight: bold;
    height: 50px;
    display: flex;
    align-items: center;
}

.bonus-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    box-shadow: 0 4px 10px rgba(59, 130, 246, 0.3);
    animation: popIn 0.5s ease-out;
    border: 3px dashed var(--primary-color);
}

@keyframes popIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    60% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes slideIn {
    0% {
        transform: translateY(-10px);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

.set-number {
    color: var(--text-color);
    opacity: 0.6;
    font-size: 14px;
    text-align: right;
    margin-top: 10px;
}

/* 반응형 디자인 */
@media (max-width: 480px) {
    .header h1 {
        font-size: 24px;
    }

    .header {
        margin-bottom: 30px;
    }

    .generate-btn {
        padding: 14px 30px;
        font-size: 16px;
    }

    .number-ball,
    .bonus-number {
        width: 45px;
        height: 45px;
        font-size: 16px;
    }

    .luck-number {
        width: 35px;
        height: 35px;
        font-size: 14px;
    }

    .lottery-numbers {
        gap: 10px;
    }

    .fortune-input {
        flex-direction: column;
    }

    .fortune-input input,
    .fortune-btn {
        width: 100%;
    }
}