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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #fff5f5 0%, #fff8f3 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

header p {
    font-size: 1.2rem;
    color: #666;
    font-weight: 300;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.tool-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(255, 107, 53, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 107, 53, 0.1);
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(255, 107, 53, 0.15);
    border-color: rgba(255, 107, 53, 0.2);
}

.tool-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.tool-card h3 {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.tool-card p {
    color: #666;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.tool-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.btn {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.3);
}

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

.btn-group {
    display: flex;
    gap: 0.5rem;
}

.btn-group .btn {
    flex: 1;
}

input[type="text"],
input[type="number"],
textarea {
    border: 2px solid #f0f0f0;
    border-radius: 8px;
    padding: 0.75rem;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: #fafafa;
}

input[type="text"]:focus,
input[type="number"]:focus,
textarea:focus {
    outline: none;
    border-color: #ff6b35;
    background: white;
}

textarea {
    min-height: 100px;
    resize: vertical;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
}

.output {
    background: #f8f9fa !important;
    border: 2px solid #e9ecef !important;
    color: #495057;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
}

.copy-btn {
    background: linear-gradient(135deg, #20c997, #17a2b8);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    align-self: flex-start;
}

.copy-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(32, 201, 151, 0.3);
}

.password-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.password-options label {
    font-size: 0.9rem;
    font-weight: 500;
    color: #555;
}

.password-options input[type="number"] {
    width: 80px;
    margin-left: 0.5rem;
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.5rem;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    margin: 0;
    accent-color: #ff6b35;
}

input[type="color"] {
    width: 60px;
    height: 40px;
    border: 2px solid #f0f0f0;
    border-radius: 8px;
    cursor: pointer;
    background: none;
}

input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
    border-radius: 6px;
}

input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 6px;
}

footer {
    text-align: center;
    padding: 2rem 0;
    color: #666;
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 107, 53, 0.1);
    margin-top: 2rem;
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    header h1 {
        font-size: 2.5rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .tool-card {
        padding: 1.5rem;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .checkbox-group {
        grid-template-columns: 1fr;
    }
}

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

.tool-card {
    animation: fadeIn 0.6s ease-out;
}

.tool-card:nth-child(1) { animation-delay: 0.1s; }
.tool-card:nth-child(2) { animation-delay: 0.2s; }
.tool-card:nth-child(3) { animation-delay: 0.3s; }
.tool-card:nth-child(4) { animation-delay: 0.4s; }
.tool-card:nth-child(5) { animation-delay: 0.5s; }
.tool-card:nth-child(6) { animation-delay: 0.6s; }