/* ===== VARIABLES ===== */
:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2d2d2d;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent: #8b5cf6;
    --accent-hover: #7c3aed;
    --border: #333;
    --success: #10b981;
    --error: #ef4444;
}

/* ===== BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
}

/* ===== HEADER ===== */
header {
    text-align: center;
    margin-bottom: 40px;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, #1f1f1f 100%);
    border-radius: 16px;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
}

header h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--accent), #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 40px;
    border: 1px solid var(--border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* ===== FORM STYLES ===== */
.form-group {
    margin-bottom: 24px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

textarea, select, input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 14px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

textarea:focus, select:focus, input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

textarea {
    resize: vertical;
    min-height: 400px;
    line-height: 1.5;
}

textarea::placeholder {
    color: var(--text-secondary);
}

/* ===== BUTTON STYLES ===== */
.btn {
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: white;
    padding: 14px 32px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.3);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.btn-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

/* ===== PASTE CONTENT ===== */
.paste-content {
    background: var(--bg-tertiary);
    border-radius: 12px;
    padding: 30px;
    margin: 30px 0;
    border: 1px solid var(--border);
    position: relative;
}

.paste-content pre {
    margin: 0;
    overflow-x: auto;
    background: none !important;
}

.paste-content code {
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.5;
    background: none;
}

/* ===== PASTE INFO ===== */
.paste-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 25px;
    padding: 20px;
    background: var(--bg-tertiary);
    border-radius: 10px;
    border: 1px solid var(--border);
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.info-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-value {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* ===== URL FORMATS ===== */
.url-formats {
    margin: 30px 0;
    padding: 25px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.url-formats h3 {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 1.2rem;
}

.url-grid {
    display: grid;
    gap: 15px;
}

.url-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.url-label {
    min-width: 100px;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
}

.url-input {
    flex: 1;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    padding: 10px 12px;
    border-radius: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.url-copy {
    padding: 8px 16px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.url-copy:hover {
    background: var(--accent-hover);
}

/* ===== FOOTER ===== */
footer {
    text-align: center;
    margin-top: 50px;
    padding: 30px 20px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 2.2rem;
    }
    
    .main-content {
        padding: 25px 20px;
    }
    
    .paste-info {
        grid-template-columns: 1fr;
    }
    
    .url-item {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    
    .url-label {
        min-width: auto;
    }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-hover);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.hidden { display: none; }

/* ===== HIGHLIGHT.JS OVERRIDE ===== */
.hljs {
    background: transparent !important;
    padding: 0 !important;
}