/* Custom styles for Interview Assistant */

/* Loading animations */
@keyframes pulse-gentle {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.pulse-gentle {
    animation: pulse-gentle 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

/* Enhanced file upload area */
.file-upload-area.drag-over {
    background: linear-gradient(135deg, #e0f2fe 0%, #f3e5f5 100%);
    border-color: #3b82f6;
    transform: scale(1.02);
}

/* Question card hover effects */
.question-card {
    position: relative;
    overflow: hidden;
}

.question-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.question-card:hover::before {
    left: 100%;
}

/* Enhanced buttons */
.btn-primary {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

/* Animated gradients */
.gradient-animated {
    background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #f5576c);
    background-size: 400% 400%;
    animation: gradient-shift 15s ease infinite;
}

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

/* Form focus states */
input:focus, textarea:focus, select:focus {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    border-color: #3b82f6;
}

/* Enhanced toast notifications */
.toast {
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* Responsive utilities */
@media (max-width: 768px) {
    .mobile-padding {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .mobile-text-sm {
        font-size: 0.875rem;
    }
}

/* Dark mode support (future enhancement) */
@media (prefers-color-scheme: dark) {
    .dark-mode-support {
        background-color: #1f2937;
        color: #f9fafb;
    }
}

/* Print styles */
@media print {
    .no-print {
        display: none;
    }
    
    .print-break {
        page-break-after: always;
    }
}