/* ================================
/* ================================
   Base Styles - 대치킨트영어도서관 레벨테스트
   ================================ */

/* Font: TheJamsil (더잠실) */
@font-face {
    font-family: 'TheJamsil';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2302_01@1.0/TheJamsil1Thin.woff2') format('woff2');
    font-weight: 100;
    font-display: swap;
}

@font-face {
    font-family: 'TheJamsil';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2302_01@1.0/TheJamsil2Light.woff2') format('woff2');
    font-weight: 300;
    font-display: swap;
}

@font-face {
    font-family: 'TheJamsil';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2302_01@1.0/TheJamsil3Regular.woff2') format('woff2');
    font-weight: 400;
    font-display: swap;
}

@font-face {
    font-family: 'TheJamsil';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2302_01@1.0/TheJamsil4Medium.woff2') format('woff2');
    font-weight: 500;
    font-display: swap;
}

@font-face {
    font-family: 'TheJamsil';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2302_01@1.0/TheJamsil5Bold.woff2') format('woff2');
    font-weight: 700;
    font-display: swap;
}

@font-face {
    font-family: 'TheJamsil';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2302_01@1.0/TheJamsil6ExtraBold.woff2') format('woff2');
    font-weight: 800;
    font-display: swap;
}

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

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary-color: #64748b;
    --success-color: #22c55e;
    --success-light: #dcfce7;
    --danger-color: #ef4444;
    --danger-light: #fee2e2;
    --warning-color: #f59e0b;
    --warning-light: #fef3c7;
    
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    --font-family: 'TheJamsil', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-color);
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-md);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.3; color: var(--text-primary); }
h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
p { margin-bottom: var(--spacing-md); }

a { color: var(--primary-color); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--primary-hover); }

button {
    font-family: inherit;
    font-size: var(--font-size-base);
    cursor: pointer;
    border: none;
    outline: none;
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-weight: 500;
}
.btn-primary:hover { background-color: var(--primary-hover); }
.btn-primary:disabled { background-color: var(--text-muted); cursor: not-allowed; }

.btn-secondary {
    background-color: var(--card-bg);
    color: var(--text-primary);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    font-weight: 500;
}
.btn-secondary:hover { background-color: var(--bg-color); }

.btn-danger {
    background-color: var(--danger-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-weight: 500;
}
.btn-danger:hover { background-color: #dc2626; }

input, select, textarea {
    font-family: inherit;
    font-size: var(--font-size-base);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    width: 100%;
    transition: border-color var(--transition-fast);
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

label { display: block; font-weight: 500; margin-bottom: var(--spacing-sm); color: var(--text-primary); }
.required { color: var(--danger-color); }

.card {
    background-color: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
}

.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-md);
}

.modal-content {
    background-color: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 400px;
    width: 100%;
    text-align: center;
}
.modal-content h3 { margin-bottom: var(--spacing-md); }
.modal-content p { color: var(--text-secondary); margin-bottom: var(--spacing-lg); }
.modal-buttons { display: flex; gap: var(--spacing-md); justify-content: center; }

.footer {
    margin-top: auto;
    padding: var(--spacing-lg) 0;
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

@media (max-width: 640px) {
    html { font-size: 14px; }
    .container { padding: var(--spacing-sm); }
}