:root {
    --primary-color: #9146FF; /* Twitch Purple */
    --on-primary-color: #FFFFFF;
    --font-family: 'Inter', sans-serif;
}

/* Dark theme (default) */
[data-theme="dark"] {
    --background-color: #121212;
    --surface-color: #1e1e1e;
    --text-color: #E0E0E0;
    --text-secondary-color: #A0A0A0;
    --border-color: #333333;
}

/* Light theme */
[data-theme="light"] {
    --background-color: #F4F4F5;
    --surface-color: #FFFFFF;
    --text-color: #18181B;
    --text-secondary-color: #52525B;
    --border-color: #E4E4E7;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: var(--font-family);
    margin: 0;
    padding: 2rem;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.container {
    width: 100%;
    max-width: 800px;
    text-align: center;
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.logo {
    text-decoration: none;
    color: var(--text-color);
}

.main-header h1 {
    margin: 0;
    font-weight: 700;
    font-size: 1.5rem;
}

.card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    text-align: left;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.card h2 {
    margin-top: 0;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--on-primary-color);
    padding: 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s ease-in-out;
}

.btn:hover {
    background-color: #7a3ad9; /* Darker purple */
}

.btn-twitch {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
}

.theme-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
}
.theme-btn:hover {
    background-color: var(--surface-color);
}

[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }