@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;700&display=swap');

:root {
    --primary-color: #5b7ce8;
    --background-color: #f8f9fa;
    --card-bg-color: #ffffff;
    --text-color: #343a40;
    --light-gray-color: #e9ecef;
    --shadow-color: rgba(0, 0, 0, 0.08);
}

body[data-theme='dark'] {
    --primary-color: #6c8ee8;
    --background-color: #1a1a1a;
    --card-bg-color: #2c2c2c;
    --text-color: #f1f1f1;
    --light-gray-color: #444444;
    --shadow-color: rgba(0, 0, 0, 0.4);
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    transition: background-color 0.3s, color 0.3s;
}

.theme-toggle-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: var(--card-bg-color);
    color: var(--text-color);
    border: 1px solid var(--light-gray-color);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 2px 10px var(--shadow-color);
    transition: background-color 0.3s, color 0.3s, transform 0.2s;
}

.theme-toggle-btn:hover {
    transform: scale(1.1);
}

.container {
    width: 100%;
    max-width: 900px;
    text-align: center;
}

/* Tabs */
.tab-nav {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.tab-btn {
    background-color: var(--card-bg-color);
    color: var(--text-color);
    border: 1px solid var(--light-gray-color);
    padding: 10px 18px;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 700;
    transition: background-color 0.2s, border-color 0.2s, transform 0.2s;
}

.tab-btn.active {
    background-color: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
}

.tab-btn:hover {
    transform: translateY(-2px);
}

.page {
    display: none;
}

.page.active {
    display: block;
}


/* Intro and Types Sections */
.intro-section, .types-section {
    background-color: var(--card-bg-color);
    padding: 30px;
    border-radius: 16px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: background-color 0.3s;
}

.intro-section h1, .types-section h2 {
    margin-top: 0;
    color: var(--primary-color);
    font-size: 2em;
}

.intro-section p {
    line-height: 1.7;
    font-size: 1.1em;
    max-width: 80ch;
    margin: 15px auto;
}

.types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.type-card {
    background-color: var(--background-color);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--light-gray-color);
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
    cursor: default;
}

.type-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px var(--shadow-color);
}

.type-card h3 {
    margin: 0 0 10px 0;
    color: var(--primary-color);
    font-size: 1.4em;
}

.type-card p {
    margin: 0;
    font-size: 0.95em;
}

/* Start Button */
.start-btn {
    background-color: var(--primary-color);
    color: white;
    font-size: 1.5em;
    font-weight: 700;
    border: none;
    padding: 15px 40px;
    border-radius: 50px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.2s;
    box-shadow: 0 4px 15px rgba(91, 124, 232, 0.4);
    margin: 20px 0;
}

.question-controls {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background-color: var(--card-bg-color);
    border: 1px solid var(--light-gray-color);
    padding: 12px 18px;
    border-radius: 12px;
    box-shadow: 0 4px 12px var(--shadow-color);
    margin-bottom: 10px;
}

.question-controls label {
    font-weight: 700;
}

.question-controls select {
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid var(--light-gray-color);
    background-color: var(--background-color);
    color: var(--text-color);
    font-weight: 700;
}

.start-btn:hover {
    background-color: #4a69d1;
    transform: translateY(-2px);
}

.question-info {
    margin-top: 15px;
    margin-bottom: 25px;
    font-size: 1.1em;
    color: var(--text-color);
}

/* Question Section */
.question-section, .result-section {
    padding-top: 40px;
}

.question-box, .result-box {
    background-color: var(--card-bg-color);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 15px var(--shadow-color);
    animation: fadeIn 0.5s ease-in-out;
}

.progress-bar {
    width: 100%;
    height: 10px;
    background-color: var(--light-gray-color);
    border-radius: 5px;
    margin-bottom: 20px;
    overflow: hidden;
}

.progress {
    width: 0;
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.4s ease;
}

.question-text {
    font-size: 1.4em;
    font-weight: 700;
    margin-bottom: 30px;
    min-height: 60px;
}

.answer-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.answer-btn {
    background-color: var(--background-color);
    color: var(--text-color);
    font-size: 1.1em;
    border: 1px solid var(--light-gray-color);
    padding: 20px;
    border-radius: 12px;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
    text-align: center;
    width: 100%;
}

.answer-btn:hover {
    background-color: var(--light-gray-color);
    border-color: var(--primary-color);
}

/* Result Section */
.result-type {
    font-size: 4em;
    color: var(--primary-color);
    margin: 10px 0;
}

.result-title {
    font-size: 1.8em;
    font-weight: 700;
    margin: 0 0 15px 0;
}

.result-description {
    font-size: 1.1em;
    line-height: 1.7;
    margin-bottom: 30px;
}

.result-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.secondary-btn {
    background-color: var(--card-bg-color);
    color: var(--text-color);
    border: 1px solid var(--light-gray-color);
    padding: 10px 18px;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 700;
    transition: background-color 0.2s, transform 0.2s;
}

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

.secondary-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.result-stats {
    text-align: left;
    margin: 20px auto 26px;
    max-width: 520px;
}

.result-stats h4 {
    margin: 0 0 12px;
    color: var(--primary-color);
}

.stat-row {
    display: grid;
    grid-template-columns: 24px 1fr 24px auto;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.stat-label {
    font-weight: 700;
}

.stat-bar {
    height: 10px;
    background-color: var(--light-gray-color);
    border-radius: 999px;
    overflow: hidden;
}

.stat-fill {
    height: 100%;
    background-color: var(--primary-color);
}

.stat-value {
    font-size: 0.9em;
    color: var(--text-color);
}

.result-details {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    text-align: left;
    margin-bottom: 24px;
}

.detail-card {
    background-color: var(--background-color);
    border: 1px solid var(--light-gray-color);
    border-radius: 12px;
    padding: 16px;
}

.detail-card h4 {
    margin: 0 0 10px;
    color: var(--primary-color);
}

.detail-card ul {
    padding-left: 18px;
    margin: 0;
    line-height: 1.6;
}

/* Lotto Section */
.lotto-hero {
    background-color: var(--card-bg-color);
    padding: 30px;
    border-radius: 16px;
    margin-bottom: 24px;
    box-shadow: 0 4px 15px var(--shadow-color);
}

.lotto-hero h1 {
    margin-top: 0;
    color: var(--primary-color);
}

.lotto-hero p {
    line-height: 1.7;
    margin: 10px auto 20px;
    max-width: 60ch;
}

.lotto-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.lotto-card {
    background-color: var(--card-bg-color);
    border: 1px solid var(--light-gray-color);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 4px 15px var(--shadow-color);
}

.lotto-card h3 {
    margin: 0 0 12px;
    color: var(--primary-color);
}

.lotto-numbers {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.lotto-ball {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: var(--background-color);
    border: 2px solid var(--primary-color);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 600px) {
    body {
        padding: 15px;
    }
    .intro-section, .types-section {
        padding: 20px;
    }
    .types-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 15px;
    }
    .question-controls {
        flex-direction: column;
        align-items: flex-start;
    }
    .stat-row {
        grid-template-columns: 24px 1fr 24px;
    }
    .stat-value {
        grid-column: 1 / -1;
        margin-bottom: 8px;
    }
}