:root {
    --bg-color: #1a1a2e;
    --primary-color: #16213e;
    --secondary-color: #0f3460;
    --accent-color: #e94560;
    --text-color: #e0e0e0;
    --light-text-color: #a0a0c0;
    --card-bg: rgba(22, 33, 62, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --hover-color: #e94560;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

header {
    text-align: center;
    padding: 3rem 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: white;
}

header h1 i {
    color: var(--accent-color);
    margin-right: 10px;
}

header p {
    font-size: 1.1rem;
    color: var(--light-text-color);
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.controls-container {
    background-color: var(--primary-color);
    padding: 2rem;
    border-radius: 15px;
    margin-bottom: 2rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    border: 1px solid var(--border-color);
}

#text-input {
    width: 100%;
    min-height: 100px;
    padding: 1rem;
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-color);
    resize: vertical;
    transition: all 0.3s ease;
}

#text-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 15px rgba(233, 69, 96, 0.5);
}

.toolbar {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
}

.font-size-control {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--light-text-color);
}

#font-size-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 150px;
    height: 8px;
    background: var(--secondary-color);
    outline: none;
    border-radius: 5px;
}

#font-size-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    cursor: pointer;
    border-radius: 50%;
}

#font-size-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    cursor: pointer;
    border-radius: 50%;
}

#font-size-value {
    font-weight: 500;
    color: var(--text-color);
    width: 50px;
}

.categories {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 1rem;
}

.category-btn {
    background-color: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    transition: all 0.3s ease;
}

.category-btn:hover, .category-btn.active {
    background-color: var(--accent-color);
    color: white;
}

.font-previews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.font-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.font-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    border-color: var(--accent-color);
}

.font-card .preview-text {
    flex-grow: 1;
    min-height: 80px;
    word-break: break-all;
    overflow: hidden;
    font-size: 28px; /* Default font size */
}

.font-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.font-name {
    font-size: 0.9rem;
    color: var(--light-text-color);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.copy-btn {
    background-color: var(--secondary-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.copy-btn.copied {
    background-color: #28a745;
    color: white;
    border-color: #28a745;
}

footer {
    text-align: center;
    padding: 2rem 1rem;
    margin-top: 2rem;
    color: var(--light-text-color);
    font-size: 0.9rem;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
}

footer i {
    color: var(--accent-color);
}