/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #ff6b6b 100%);
    background-size: 400% 400%;
    animation: gradientShift 10s ease infinite;
    min-height: 100vh;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

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

/* Header Styles */
.header {
    text-align: center;
    margin-bottom: 30px;
    color: white;
    position: relative;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(15px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.header h1 {
    font-size: 3em;
    margin-bottom: 15px;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
    background: linear-gradient(45deg, #fff, #f0f0f0, #fff);
    background-size: 300% 300%;
    animation: textShine 3s ease-in-out infinite;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes textShine {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.header p {
    font-size: 1.3em;
    opacity: 0.95;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

/* Telegram Section */
.telegram-section {
    text-align: center;
    margin-bottom: 30px;
}

.telegram-btn {
    display: inline-block;
    background: linear-gradient(45deg, #229ED9, #0088cc);
    color: white;
    text-decoration: none;
    padding: 15px 30px;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.1em;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(34, 158, 217, 0.3);
}

.telegram-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(34, 158, 217, 0.4);
}

.telegram-btn i {
    margin-right: 10px;
}

/* Function Selector */
.function-selector {
    margin-bottom: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 25px;
    backdrop-filter: blur(15px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.function-selector h3 {
    color: white;
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.4em;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

.function-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.function-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 15px 25px;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1em;
    font-weight: 600;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
    min-width: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.function-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.function-btn.active {
    background: linear-gradient(45deg, #4facfe 0%, #00f2fe 100%);
    border-color: rgba(255, 255, 255, 0.8);
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.4);
    transform: translateY(-2px);
}

.function-btn i {
    font-size: 1.2em;
}

/* Config Section */
.config-section {
    margin-bottom: 30px;
}

.config-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.config-card h3 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.3em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.config-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: end;
}

@media (max-width: 768px) {
    .config-inputs {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}

.save-config-btn {
    background: linear-gradient(45deg, #28a745, #20c997);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
    height: fit-content;
}

.save-config-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(40, 167, 69, 0.3);
}

/* Main Content */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* Form Section */
.form-section {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.qr-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    font-weight: 600;
    color: #555;
    display: flex;
    align-items: center;
    gap: 8px;
}

.input-group input,
.input-group textarea {
    padding: 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.input-group input:focus,
.input-group textarea:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-hint {
    color: #6c757d;
    font-size: 0.9em;
}

.generate-btn {
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    border: none;
    padding: 15px 25px;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

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

/* Result Section */
.result-section {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    text-align: center;
}

.qr-container h3 {
    margin-bottom: 20px;
    color: #333;
    font-size: 1.5em;
}

.qr-display {
    display: inline-block;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    margin-bottom: 15px;
}

.display-text {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin: 15px 0;
    color: #555;
    font-style: italic;
}

.action-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 20px;
}

.action-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.download-btn {
    background: #28a745;
    color: white;
}

.download-btn:hover {
    background: #218838;
}

.copy-btn {
    background: #17a2b8;
    color: white;
}

.copy-btn:hover {
    background: #138496;
}

.new-btn {
    background: #6c757d;
    color: white;
}

.new-btn:hover {
    background: #5a6268;
}

/* Features Section */
.features-section {
    margin-bottom: 30px;
    background: rgba(255, 255, 255, 0.1);
    padding: 25px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.features-section h3 {
    color: white;
    text-align: center;
    margin-bottom: 25px;
    font-size: 1.5em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.feature-card i {
    font-size: 2.5em;
    color: #667eea;
    margin-bottom: 15px;
    display: block;
}

.feature-card h4 {
    color: #333;
    margin-bottom: 10px;
    font-size: 1.2em;
}

.feature-card p {
    color: #666;
    font-size: 0.9em;
    line-height: 1.4;
}

/* Privacy Notice */
.privacy-notice {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    backdrop-filter: blur(10px);
}

.privacy-notice i {
    margin-right: 8px;
}

/* Footer */
.footer {
    text-align: center;
    color: white;
    opacity: 0.8;
    margin-top: 20px;
}

.footer i {
    color: #ff6b6b;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    color: white;
}

.spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top: 4px solid #fff;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

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

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #333;
    color: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    transform: translateX(400px);
    transition: transform 0.3s ease;
    z-index: 1000;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    background: #28a745;
}

.toast.error {
    background: #dc3545;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header h1 {
        font-size: 2em;
    }
    
    .form-section,
    .result-section {
        padding: 20px;
    }
    
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .action-btn {
        width: 100%;
        justify-content: center;
        max-width: 200px;
    }
    
    .telegram-btn {
        padding: 12px 25px;
        font-size: 1em;
    }
}

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

.form-section,
.result-section {
    animation: fadeInUp 0.6s ease;
}

/* QR Code Styling */
#qrcode canvas {
    border-radius: 8px;
}

/* Warning Text */
.warning-text {
    background: rgba(255, 193, 7, 0.1);
    border: 2px solid rgba(255, 193, 7, 0.3);
    color: #856404;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

.warning-text i {
    color: #ffc107;
    font-size: 1.2em;
}

/* Specialized Form Buttons */
.camera-btn {
    background: linear-gradient(45deg, #e83e8c, #c3185a);
    border: none;
    color: white;
    padding: 15px 30px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    box-shadow: 0 4px 15px rgba(232, 62, 140, 0.3);
}

.camera-btn:hover {
    background: linear-gradient(45deg, #c3185a, #a91447);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(232, 62, 140, 0.4);
}

.video-btn {
    background: linear-gradient(45deg, #fd7e14, #e8590c);
    border: none;
    color: white;
    padding: 15px 30px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    box-shadow: 0 4px 15px rgba(253, 126, 20, 0.3);
}

.video-btn:hover {
    background: linear-gradient(45deg, #e8590c, #d54e0a);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(253, 126, 20, 0.4);
}

.ip-btn {
    background: linear-gradient(45deg, #20c997, #17a085);
    border: none;
    color: white;
    padding: 15px 30px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    box-shadow: 0 4px 15px rgba(32, 201, 151, 0.3);
}

.ip-btn:hover {
    background: linear-gradient(45deg, #17a085, #148f77);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(32, 201, 151, 0.4);
}

.multi-btn {
    background: linear-gradient(45deg, #6f42c1, #5a35a3);
    border: none;
    color: white;
    padding: 15px 30px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    box-shadow: 0 4px 15px rgba(111, 66, 193, 0.3);
}

.multi-btn:hover {
    background: linear-gradient(45deg, #5a35a3, #4c2c85);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(111, 66, 193, 0.4);
}

/* Multi-Function Options */
.multi-options {
    margin: 20px 0;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.multi-options h4 {
    color: #333;
    margin-bottom: 15px;
    font-size: 1.1em;
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.checkbox-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-1px);
}

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

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid #ddd;
    border-radius: 4px;
    margin-right: 10px;
    position: relative;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.checkbox-item input[type="checkbox"]:checked + .checkmark {
    background: linear-gradient(45deg, #4facfe, #00f2fe);
    border-color: #4facfe;
}

.checkbox-item input[type="checkbox"]:checked + .checkmark::after {
    content: "✓";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: bold;
    font-size: 12px;
}