@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css');
@import url('https://fonts.googleapis.com/css2?family=Jua&family=Nanum+Pen+Script&display=swap');
/* Casual Fonts */

:root {
    /* Light Theme */
    --primary-color: #FF6B6B;
    /* Softer, warmer red/pink */
    --primary-light: #FFE3E3;
    --secondary-color: #4ECDC4;
    /* Mint/Teal */
    --accent-color: #FFE66D;
    /* Yellow */
    --bg-color: #F7F9FC;
    --card-bg: #FFFFFF;
    --text-main: #2D3436;
    --text-sub: #636E72;
    --border-color: #DFE6E9;
    --shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    --radius: 24px;
    /* More rounded */
    --font-main: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    --font-casual: 'Jua', sans-serif;
    /* For headers */
}

[data-theme="dark"] {
    /* Dark Theme */
    --primary-color: #FF8787;
    --primary-light: #4A2B2B;
    --secondary-color: #45B7AF;
    --bg-color: #1E1E1E;
    --card-bg: #2D2D2D;
    --text-main: #F1F2F6;
    --text-sub: #B2BEC3;
    --border-color: #444;
    --shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-main);
    transition: background-color 0.3s, color 0.3s;
    line-height: 1.6;
    background-image: radial-gradient(var(--border-color) 1px, transparent 1px);
    background-size: 20px 20px;
    /* Dot pattern */
}

.app-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding: 10px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo .icon {
    font-size: 2rem;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
}

.age-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-top: 10px;
}

/* Tab Styles */
.tab-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    color: var(--text-sub);
    transition: all 0.2s;
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 4px 10px rgba(108, 99, 255, 0.3);
}

/* Monetization & Lock Styles */
.blur-content {
    filter: blur(8px);
    user-select: none;
    pointer-events: none;
    transition: filter 0.5s ease;
}

.unlocked .blur-content {
    filter: blur(0);
    user-select: auto;
    pointer-events: auto;
}

.lock-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: rgba(255, 255, 255, 0.6);
    z-index: 10;
    border-radius: var(--radius);
}

.lock-btn {
    background: #2D3436;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: bold;
    cursor: pointer;
    margin: 5px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.1s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.lock-btn:hover {
    transform: scale(1.05);
}

.premium-btn {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: #2D3436;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--radius);
    width: 90%;
    max-width: 400px;
    text-align: center;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-sub);
}

#theme-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: background-color 0.2s;
}

#theme-toggle:hover {
    background-color: var(--border-color);
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease;
}

.card:hover {
    transform: translateY(-5px);
}

/* Form */
.input-section h2 {
    margin-bottom: 20px;
    font-size: 1.2rem;
    color: var(--text-main);
}

.form-group {
    margin-bottom: 20px;
}

.form-group-row {
    display: flex;
    gap: 15px;
}

.form-group-row .form-group {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-sub);
    font-size: 0.9rem;
}

input[type="date"],
input[type="number"] {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    font-family: var(--font-number);
    background-color: var(--bg-color);
    color: var(--text-main);
    transition: border-color 0.2s;
}

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

/* Radio Buttons */
.radio-group {
    display: flex;
    gap: 10px;
}

.radio-label {
    flex: 1;
    cursor: pointer;
}

.radio-label input {
    display: none;
}

.radio-btn {
    display: block;
    text-align: center;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-weight: 500;
    transition: all 0.2s;
}

.radio-label input:checked+.radio-btn {
    background-color: var(--primary-light);
    color: var(--primary-color);
    border-color: var(--primary-color);
    font-weight: 700;
}

/* Button */
.btn-primary {
    width: 100%;
    padding: 16px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50px;
    /* Pill shape */
    font-size: 1.2rem;
    font-weight: 700;
    font-family: var(--font-casual);
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    box-shadow: 0 4px 10px rgba(255, 107, 107, 0.3);
}

.btn-primary:hover {
    filter: brightness(1.1);
    transform: scale(1.02);
}

.btn-primary:active {
    transform: scale(0.98);
}

/* Results */
.hidden {
    display: none;
}

.summary-cheader {
    text-align: center;
    margin-bottom: 40px;
    padding: 20px 0;
}

h1 {
    font-family: var(--font-casual);
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 10px;
    letter-spacing: -1px;
}

h2,
h3,
h4 {
    font-family: var(--font-casual);
    letter-spacing: -0.5px;
}

.age-text {
    font-size: 1.2rem;
    color: var(--text-sub);
    margin-bottom: 20px;
}

.percentile-badges {
    display: flex;
    justify-content: space-around;
    gap: 10px;
}

.badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px;
    background-color: var(--bg-color);
    border-radius: 12px;
    flex: 1;
}

.badge .label {
    font-size: 0.85rem;
    color: var(--text-sub);
    margin-bottom: 5px;
}

.badge .value {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-number);
    color: var(--primary-color);
}

/* Charts */
.charts-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.chart-card {
    position: relative;
    height: 400px;
    /* Fixed height for chart visibility */
}

.chart-card h3 {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.chart-desc {
    margin-top: 15px;
    text-align: center;
    font-size: 0.95rem;
    color: var(--text-sub);
}

.highlight {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.1rem;
}

/* Footer */
footer {
    text-align: center;
    margin-top: 40px;
    color: var(--text-sub);
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 600px) {
    .form-group-row {
        flex-direction: column;
        gap: 0;
    }

    .percentile-badges {
        flex-direction: column;
    }

    .badge {
        flex-direction: row;
        justify-content: space-between;
        padding: 15px 20px;
    }
}