/* ===========================
   UI ENHANCEMENTS
   Modern improvements for better UX
   =========================== */

/* Glass Morphism Effects */
.glass-card {
    background: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-lg);
}

/* Smooth Hover Transitions */
.smooth-hover {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.smooth-hover:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

/* Modern Button Enhancements */
.btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn::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 ease;
}

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

.btn:active {
    transform: scale(0.98);
}

/* Enhanced Card Styles */
.modern-card {
    background: var(--white);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 119, 190, 0.05);
}

.modern-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: rgba(0, 119, 190, 0.15);
}

/* Gradient Text */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Icon Pulse Animation */
@keyframes icon-pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.pulse-icon {
    animation: icon-pulse 2s ease-in-out infinite;
}

/* Shimmer Effect */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.shimmer {
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0) 0%, 
        rgba(255, 255, 255, 0.3) 50%, 
        rgba(255, 255, 255, 0) 100%);
    background-size: 1000px 100%;
    animation: shimmer 3s infinite;
}

/* Floating Animation */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

.float-animation {
    animation: float 4s ease-in-out infinite;
}

/* Border Glow Effect */
.border-glow {
    position: relative;
    border: 2px solid transparent;
    background-clip: padding-box;
}

.border-glow::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-primary);
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.border-glow:hover::before {
    opacity: 1;
}

/* Loading Skeleton */
@keyframes skeleton-loading {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.skeleton {
    background: linear-gradient(90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

/* Modern Input Focus */
input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 119, 190, 0.1);
    transform: translateY(-2px);
}

/* Badge Styles */
.badge {
    display: inline-block;
    padding: 6px 14px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
}

.badge-success {
    background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);
}

.badge-warning {
    background: var(--gradient-accent);
}

.badge-info {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
}

/* Tooltip Enhancement */
[data-tooltip] {
    position: relative;
    cursor: pointer;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%) scale(0);
    background: var(--dark);
    color: white;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
    box-shadow: var(--shadow-lg);
}

[data-tooltip]:hover::after {
    transform: translateX(-50%) scale(1);
    opacity: 1;
}

/* Scroll Progress Bar */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: var(--gradient-primary);
    z-index: 9999;
    transition: width 0.1s ease;
}

/* Modern Section Divider */
.section-divider {
    position: relative;
    margin: 60px 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(0, 119, 190, 0.3) 50%,
        transparent 100%);
}

.section-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    opacity: 0.1;
}

/* Ribbon Effect */
.ribbon {
    position: absolute;
    top: 20px;
    right: -5px;
    background: var(--gradient-accent);
    color: white;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 700;
    box-shadow: var(--shadow-md);
    z-index: 10;
}

.ribbon::before {
    content: '';
    position: absolute;
    bottom: -5px;
    right: 0;
    border-left: 5px solid #d68910;
    border-bottom: 5px solid transparent;
}

/* Stagger Animation for Lists */
.stagger-item {
    opacity: 0;
    animation: stagger-in 0.6s ease forwards;
}

@keyframes stagger-in {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Backdrop Blur Support */
@supports (backdrop-filter: blur(10px)) or (-webkit-backdrop-filter: blur(10px)) {
    .blur-bg {
        background: rgba(255, 255, 255, 0.9);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
    }
}

/* Parallax Effect */
.parallax-layer {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 3D Card Effect */
.card-3d {
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-3d:hover {
    transform: rotateY(5deg) rotateX(5deg);
}

/* Glow on Hover */
.glow-on-hover {
    transition: all 0.3s ease;
}

.glow-on-hover:hover {
    box-shadow: 0 0 30px rgba(0, 201, 255, 0.5);
}

/* Modern Scrollbar */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 6px;
    border: 3px solid var(--bg-light);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gradient-secondary);
}

/* Text Selection */
::selection {
    background: var(--secondary-color);
    color: white;
}

::-moz-selection {
    background: var(--secondary-color);
    color: white;
}

/* Focus Visible for Accessibility */
*:focus-visible {
    outline: 3px solid var(--secondary-color);
    outline-offset: 2px;
}

/* Smooth Transitions */
* {
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Image Overlay Effects */
.image-overlay {
    position: relative;
    overflow: hidden;
}

.image-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-overlay);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.image-overlay:hover::after {
    opacity: 0.7;
}

/* Modern List Styles */
.modern-list {
    list-style: none;
    padding-left: 0;
}

.modern-list li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 12px;
}

.modern-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
    font-size: 18px;
}

/* Gradient Border */
.gradient-border {
    position: relative;
    border-radius: 12px;
    padding: 3px;
    background: var(--gradient-primary);
}

.gradient-border-inner {
    background: white;
    border-radius: 9px;
    padding: 20px;
}