:root {
    --primary: #D63031;
    --primary-hover: #AF2424;
    --secondary: #FF7675;
    --accent: #FDCB6E;
    --bg-color: #1A0D0D;
    --card-bg: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-color: #F5F5F5;
    --text-muted: #B2BEC3;
    --radius: 12px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    padding-top: 2rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.main-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .main-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: var(--transition);
}

.card:hover {
    border-color: rgba(214, 48, 49, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-title i {
    color: var(--secondary);
}

textarea {
    width: 100%;
    height: 200px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: calc(var(--radius) - 4px);
    color: var(--text-color);
    padding: 1rem;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.9rem;
    resize: vertical;
    outline: none;
    transition: var(--transition);
}

textarea:focus {
    border-color: var(--primary);
    background: rgba(0, 0, 0, 0.3);
}

.actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 1rem;
}

button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    font-size: 0.95rem;
}

button:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

button:active {
    transform: translateY(0);
}

button.secondary {
    background: rgba(255, 255, 255, 0.1);
}

button.secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

button.outline {
    background: transparent;
    border: 1px solid var(--border-color);
}

button.outline:hover {
    border-color: var(--secondary);
    color: var(--secondary);
}

.reference-section {
    margin-top: 3rem;
}

.reference-section h2 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    text-align: center;
}

.reference-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
}

.ref-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.ref-item:hover {
    background: rgba(214, 48, 49, 0.1);
    border-color: var(--secondary);
}

.ref-char {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.25rem;
    display: block;
}

.ref-entity {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: monospace;
}

footer {
    margin-top: auto;
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #1A0D0D;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 1000;
}

.toast.show {
    opacity: 1;
}