.password-checker-container {
    max-width: 800px;
    margin: 0 auto 2.5rem;
}

.checker-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    backdrop-filter: blur(10px);
}

.checker-card h2 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.checker-card h2::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, var(--border-color), transparent);
}

.input-group {
    position: relative;
    margin-bottom: 2rem;
}

.input-group input {
    width: 100%;
    padding: 1.25rem;
    padding-right: 3.5rem;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: #fff;
    font-size: 1.1rem;
    font-family: var(--font-primary);
    transition: all 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}

.btn-icon {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0.5rem;
    transition: all 0.2s;
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.strength-meter-container {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius-md);
}

.strength-bar-bg {
    height: 6px;
    background: #1e293b;
    border-radius: 100px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.strength-bar {
    height: 100%;
    width: 0%;
    border-radius: 100px;
    transition: width 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.strength-text {
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.strength-weak {
    background-color: #ef4444;
    color: #ef4444;
}

.strength-fair {
    background-color: #f59e0b;
    color: #f59e0b;
}

.strength-good {
    background-color: #3b82f6;
    color: #3b82f6;
}

.strength-strong {
    background-color: #10b981;
    color: #10b981;
}

.feedback-list {
    margin-top: 1.5rem;
}

.feedback-item {
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feedback-item.valid {
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary-color);
    border-left: 3px solid var(--secondary-color);
}

.feedback-item.invalid {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border-left: 3px solid #ef4444;
}

.crack-time {
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--border-radius-md);
    border-left: 3px solid var(--primary-color);
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.features-info {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), transparent);
    border: 1px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
}

@media (max-width: 768px) {
    .checker-card {
        padding: 1.5rem;
    }
}