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

:root {
    --bg-color: #f4f4f4;
    --pattern-color: rgba(156, 146, 172, 0.1);
    --text-color: #333;
    --heading-color: #2c3e50;
    --card-bg: #fff;
    --card-shadow: rgba(0, 0, 0, 0.1);
    --muted-color: #7f8c8d;
    --button-bg: #3498db;
    --button-hover-bg: #2980b9;
    --button-shadow: rgba(52, 152, 219, 0.2);
    --button-hover-shadow: rgba(52, 152, 219, 0.3);
    --toggle-bg: #fff;
    --toggle-border: #d9e2ec;
    --toggle-text: #2c3e50;
}

body.dark-mode {
    --bg-color: #111827;
    --pattern-color: rgba(147, 197, 253, 0.08);
    --text-color: #e5e7eb;
    --heading-color: #f9fafb;
    --card-bg: #1f2937;
    --card-shadow: rgba(0, 0, 0, 0.35);
    --muted-color: #a5b4fc;
    --button-bg: #60a5fa;
    --button-hover-bg: #3b82f6;
    --button-shadow: rgba(96, 165, 250, 0.25);
    --button-hover-shadow: rgba(96, 165, 250, 0.35);
    --toggle-bg: #374151;
    --toggle-border: #4b5563;
    --toggle-text: #f9fafb;
}

body {
    font-family: 'Nanum Myeongjo', serif;
    background-color: var(--bg-color);
    background-image: radial-gradient(var(--pattern-color) 1px, transparent 1px);
    background-size: 12px 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    text-align: center;
    padding: 2rem;
}

.app-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

h1 {
    font-size: 2.5rem;
    margin: 0;
    color: var(--heading-color);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.quote-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 20px var(--card-shadow), 0 6px 6px var(--card-shadow);
    max-width: 600px;
    margin: 0 auto 2rem;
    transition: transform 0.3s ease-in-out, background-color 0.3s ease, box-shadow 0.3s ease;
}

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

#quote-text {
    font-size: 1.5rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

#quote-author {
    font-size: 1rem;
    font-style: italic;
    color: var(--muted-color);
    text-align: right;
}

#new-quote-btn {
    background-color: var(--button-bg);
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    border-radius: 50px;
    cursor: pointer;
    transition: background-color 0.3s, box-shadow 0.3s, transform 0.3s;
    box-shadow: 0 4px 6px var(--button-shadow);
}

#new-quote-btn:hover {
    background-color: var(--button-hover-bg);
    box-shadow: 0 6px 12px var(--button-hover-shadow);
    transform: translateY(-2px);
}

#new-quote-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px var(--button-shadow);
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--toggle-bg);
    color: var(--toggle-text);
    border: 1px solid var(--toggle-border);
    border-radius: 50px;
    padding: 0.65rem 1rem;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

.theme-toggle:hover {
    transform: translateY(-2px);
}


@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    .quote-card {
        padding: 1.5rem;
    }
    #quote-text {
        font-size: 1.2rem;
    }
}