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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    /* padding-top: 80px; */
}

/* Navigation Bar */
.nav-bar {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-left, .nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-center {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}
.nav-back::before {
    content: '🏠';
    font-size: 1.1rem;
}

.nav-back {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.nav-back:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.nav-tool-icon {
    font-size: 1.5rem;
}

.nav-tool-name {
    color: white;
    font-weight: 600;
    font-size: 1.2rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.nav-actions {
    display: flex;
    gap: 0.5rem;
}

.nav-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.nav-btn.primary {
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    color: #333;
    font-weight: 600;
}

/* Container */
.container {
    max-width: 100%;
    margin: 0;
    padding: 2rem;
}

/* Buttons */
.btn {
    padding: 0.8rem 2rem;
    border: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
}

/* Form Elements */
textarea, input[type="text"], input[type="datetime-local"] {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    transition: all 0.3s ease;
    background: #fafafa;
}

textarea {
    min-height: 150px;
    resize: vertical;
}

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

/* Copy Button */
.copy-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(102, 126, 234, 0.9);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 15px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.3s ease;
    z-index: 10;
}

.copy-btn:hover {
    background: rgba(102, 126, 234, 1);
    transform: scale(1.05);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    color: white;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        /* padding-top: 70px; */
    }
    
    .nav-bar {
        padding: 1rem;
    }
    
    .nav-tool-name {
        font-size: 1rem;
    }
    
    .nav-actions {
        display: none;
    }
    
    .container {
        padding: 1rem;
    }
    
    .btn {
        width: 100%;
    }
}