:root {
    --bg-color: #0f1115;
    --card-bg: #181b21;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-color: #00d4ff;
    --accent-hover: #00b8dd;
    --border-color: #2d333b;
    --success-color: #00ff9d;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 20px;
    line-height: 1.6;
}

.container {
    max-width: 900px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 5px;
    background: linear-gradient(to right, #00d4ff, #9d00ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

h2 {
    margin-top: 0;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    font-size: 1.2rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tabs {
    margin-bottom: 15px;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 10px 20px;
    cursor: pointer;
    font-size: 1rem;
    border-bottom: 2px solid transparent;
}

.tab-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

textarea {
    width: 100%;
    height: 150px;
    background: #0a0c10;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 15px;
    font-family: inherit;
    font-size: 1rem;
    resize: vertical;
    box-sizing: border-box; 
    /* Ensures padding doesn't affect width */
}

.file-drop-area {
    border: 2px dashed var(--border-color);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s;
}

.file-drop-area:hover {
    border-color: var(--accent-color);
    background: rgba(0, 212, 255, 0.05);
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
    font-size: 1rem;
}

.btn.primary {
    background: var(--accent-color);
    color: #000;
    width: 100%;
    margin-top: 20px;
}

.btn.primary:hover {
    background: var(--accent-hover);
}

.btn.secondary {
    background: var(--border-color);
    color: var(--text-primary);
}

.btn.secondary:hover {
    background: #3d4550;
}

.hidden {
    display: none;
}

.spinner {
    border: 4px solid rgba(255,255,255,0.1);
    border-left-color: var(--accent-color);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 0 auto 10px;
}

@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

#loading-indicator {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

.code-block {
    background: #0a0c10;
    padding: 15px;
    border-radius: 6px;
    font-family: monospace;
    white-space: pre-wrap;
    border-left: 3px solid var(--accent-color);
}

.grid-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

.output-area {
    margin-top: 25px;
    background: #0a0c10;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.markdown-body h1, .markdown-body h2, .markdown-body h3 {
    margin-top: 1.5em;
    color: var(--accent-color);
}

/* Markdown Specifics */
.markdown-body code {
    background: #2d333b;
    padding: 2px 5px;
    border-radius: 4px;
}

.markdown-body pre {
    background: #181b21;
    padding: 15px;
    overflow-x: auto;
    border-radius: 8px;
}

/* Copy Card Styles */
.copy-card {
    background: #121419;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 20px;
    overflow: hidden;
    transition: box-shadow 0.2s;
}

.copy-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    border-color: #3d4550;
}

.copy-header {
    background: #1c2027;
    padding: 10px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.copy-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-copy-sm {
    background: #2d333b;
    border: none;
    color: var(--text-primary);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-copy-sm:hover {
    background: var(--accent-color);
    color: #000;
}

.copy-body {
    padding: 15px;
    font-size: 0.95rem;
    color: #d0d0d0;
}