:root {
    --bg-dark: #0a0a0c;
    --bg-card: rgba(20, 20, 25, 0.7);
    --primary: #8b5cf6; /* Purple Neon */
    --secondary: #06b6d4; /* Cyan Neon */
    --accent: #f43f5e; /* Rose Neon */
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.05);
    --glow-purple: 0 0 15px rgba(139, 92, 246, 0.3);
    --glow-cyan: 0 0 15px rgba(6, 182, 212, 0.3);
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at 20% 20%, rgba(139, 92, 246, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.05) 0%, transparent 40%);
}

/* Header & Navigation */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-container h1 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

#by-velora {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-left: 4px;
}

.tagline {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-style: italic;
    display: none; /* Hide on mobile, show on desktop */
}

@media (min-width: 768px) {
    .tagline { display: block; }
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.credits-badge {
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
}

/* Main Layout */
.app-container {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.generator-section {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 24px;
    backdrop-filter: blur(12px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group.full-width {
    width: 100%;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-muted);
    font-size: 0.85rem;
}

textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem;
    color: white;
    font-family: inherit;
    font-size: 1rem;
    resize: vertical;
    min-height: 80px;
    transition: all 0.3s ease;
}

textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: var(--glow-purple);
}

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

@media (min-width: 600px) {
    .form-grid {
        grid-template-columns: 1fr 1fr;
    }
}

select {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.75rem;
    color: white;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1rem;
}

/* Output Mode Selector */
.output-mode-selector {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.output-mode-selector input[type="radio"] {
    display: none;
}

.output-mode-selector label {
    flex: 1;
    min-width: 120px;
    text-align: center;
    padding: 0.75rem;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    margin: 0;
    transition: all 0.2s;
    font-size: 0.8rem;
}

.output-mode-selector input[type="radio"]:checked + label {
    background: rgba(139, 92, 246, 0.1);
    border-color: var(--primary);
    color: white;
    box-shadow: var(--glow-purple);
}

/* Buttons */
.primary-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    border-radius: 12px;
    color: white;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.2s, opacity 0.2s, box-shadow 0.2s;
    margin-top: 1rem;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(139, 92, 246, 0.4);
}

.secondary-btn, .accent-btn {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.05);
    color: white;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.accent-btn {
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    border: none;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Results Area */
.results-hidden {
    display: none;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
}

.prompts-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.prompt-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 1.5rem;
    position: relative;
    animation: slideUp 0.5s ease backwards;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.prompt-card h3 {
    font-size: 0.9rem;
    color: var(--secondary);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.prompt-content {
    font-size: 1rem;
    color: var(--text-main);
    background: rgba(0,0,0,0.2);
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    border-left: 3px solid var(--secondary);
}

.copy-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s;
}

.copy-btn:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--primary);
    padding: 2.5rem;
    border-radius: 24px;
    max-width: 500px;
    width: 90%;
    text-align: center;
}

.features-list {
    text-align: left;
    margin: 1.5rem 0;
    list-style: none;
}

.features-list li {
    margin-bottom: 0.75rem;
}

.close-modal {
    background: none;
    border: none;
    color: var(--text-muted);
    margin-top: 1.5rem;
    cursor: pointer;
    text-decoration: underline;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Loading Animation */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(139, 92, 246, 0.1);
    border-left-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}