/* ========================================
   AXOLOTL SOFT - QR GENERATOR
   Cyberpunk Theme Styles
   ======================================== */

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

:root {
    /* Cyberpunk Color Palette */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(18, 18, 26, 0.8);
    
    --accent-cyan: #00ffff;
    --accent-magenta: #ff00ff;
    --accent-purple: #8b5cf6;
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b80;
    
    --success-color: #10b981;
    --error-color: #ef4444;
    
    --border-color: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(0, 255, 255, 0.3);
    
    --border-radius: 16px;
    --border-radius-sm: 8px;
    
    --shadow-neon: 0 0 20px rgba(0, 255, 255, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Grid Overlay Effect */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
}

/* Language Selector */
.lang-selector {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 8px;
    z-index: 100;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.lang-btn:hover {
    border-color: var(--accent-cyan);
    color: var(--text-primary);
}

.lang-btn.active {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
    border-color: transparent;
    color: var(--bg-primary);
    font-weight: 600;
}

.lang-flag {
    font-size: 1.1rem;
}

.lang-code {
    letter-spacing: 1px;
}

/* Glass Card Effect */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
}

/* Header */
header {
    text-align: center;
    padding: 40px 20px;
    margin-bottom: 30px;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 24px;
}

.logo-icon {
    width: 50px;
    height: 50px;
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { filter: drop-shadow(0 0 8px var(--accent-cyan)); }
    50% { filter: drop-shadow(0 0 16px var(--accent-magenta)); }
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.neon-accent {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 4px;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* Main Content Grid */
.content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    animation: fadeIn 0.6s ease-out;
}

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

/* Controls Section */
.controls-section {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Input Groups */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.input-group label {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.label-icon {
    font-size: 1.1rem;
}

.input-group input[type="text"],
.input-group input[type="url"],
.input-group select {
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-family: var(--font-body);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.input-group input[type="text"]:focus,
.input-group input[type="url"]:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 255, 255, 0.1);
}

.input-group input::placeholder {
    color: var(--text-muted);
}

.input-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23a0a0b0' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    padding-right: 44px;
}

.input-group select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* Color Row */
.color-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.color-picker-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

.color-picker-group input[type="color"] {
    width: 50px;
    height: 44px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    background: transparent;
    padding: 2px;
}

.color-picker-group input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.color-picker-group input[type="color"]::-webkit-color-swatch {
    border-radius: 4px;
    border: none;
}

.color-picker-group input[type="text"] {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-family: monospace;
    font-size: 0.9rem;
}

/* Checkbox Custom */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    user-select: none;
    font-weight: 500;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 22px;
    height: 22px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
    border-color: transparent;
}

.checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    color: var(--bg-primary);
    font-size: 14px;
    font-weight: bold;
    transition: transform 0.2s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
    transform: translate(-50%, -50%) scale(1);
}

/* Range Slider */
input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
    transition: transform 0.2s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
    cursor: pointer;
    border: none;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--accent-cyan);
    background: rgba(0, 255, 255, 0.05);
}

.upload-content {
    color: var(--text-secondary);
}

.upload-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.upload-content p {
    margin-bottom: 8px;
}

.upload-link {
    color: var(--accent-cyan);
    text-decoration: underline;
}

.upload-content small {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Image Preview */
.image-preview {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-preview img {
    max-width: 100px;
    max-height: 100px;
    border-radius: var(--border-radius-sm);
    object-fit: contain;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

.remove-image {
    position: absolute;
    top: -10px;
    right: 50%;
    transform: translateX(60px);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--error-color);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
}

.remove-image:hover {
    transform: translateX(60px) scale(1.1);
}

/* Buttons */
.button-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 10px;
}

.btn {
    padding: 16px 24px;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-body);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-icon {
    font-size: 1.1rem;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
    color: var(--bg-primary);
    font-weight: 700;
}

.btn-primary:hover {
    box-shadow: var(--shadow-neon);
}

.neon-border {
    position: relative;
}

.neon-border::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
    border-radius: 10px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.neon-border:hover::before {
    opacity: 0.5;
    filter: blur(8px);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Preview Section */
.preview-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.qr-container {
    padding: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 380px;
}

.qr-container canvas {
    border-radius: 8px;
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.2);
}

.placeholder {
    text-align: center;
    color: var(--text-muted);
}

.placeholder-icon {
    font-size: 4rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.placeholder p {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.placeholder small {
    font-size: 0.9rem;
}

/* Promo Banner */
.promo-banner {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    border: 1px solid rgba(255, 0, 255, 0.2);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(255, 0, 255, 0.05));
}

.promo-content {
    display: flex;
    align-items: center;
    gap: 16px;
}

.promo-icon {
    font-size: 2.5rem;
}

.promo-text h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.promo-text p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.promo-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    background: transparent;
    border: 1px solid var(--accent-magenta);
    border-radius: var(--border-radius-sm);
    color: var(--accent-magenta);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.promo-cta:hover {
    background: var(--accent-magenta);
    color: var(--bg-primary);
    box-shadow: 0 0 20px rgba(255, 0, 255, 0.4);
}

.promo-cta .arrow {
    transition: transform 0.3s ease;
}

.promo-cta:hover .arrow {
    transform: translateX(4px);
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 20px;
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
}

footer p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

footer a {
    color: var(--accent-cyan);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--accent-magenta);
}

.heart {
    color: var(--accent-magenta);
    animation: heartbeat 1.5s ease infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.footer-sub {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Loading Spinner */
.loading {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--accent-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Responsive */
@media (max-width: 900px) {
    .content {
        grid-template-columns: 1fr;
    }
    
    .color-row {
        grid-template-columns: 1fr;
    }
    
    .controls-section {
        order: 1;
    }
    
    .preview-section {
        order: 2;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 12px;
    }
    
    header {
        padding: 30px 16px;
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    header h1 {
        letter-spacing: 2px;
    }
    
    .controls-section {
        padding: 20px;
    }
    
    .qr-container {
        padding: 24px;
        min-height: 300px;
    }
    
    .promo-content {
        flex-direction: column;
        text-align: center;
    }
}