/* Enhanced UI Styles */
:root {
    /* Modern Color Palette */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #eef2ff;
    --success-color: #10b981;
    --success-light: #d1fae5;
    --warning-color: #f59e0b;
    --warning-light: #fef3c7;
    --danger-color: #ef4444;
    --danger-light: #fee2e2;
    --info-color: #3b82f6;
    --info-light: #dbeafe;
    
    /* Neutral Colors */
    --dark-color: #111827;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), #818cf8);
    --gradient-success: linear-gradient(135deg, var(--success-color), #34d399);
    --gradient-warning: linear-gradient(135deg, var(--warning-color), #fbbf24);
    --gradient-danger: linear-gradient(135deg, var(--danger-color), #f87171);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-base: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;
}

/* Modern Card Styles */
.card {
    border: none;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--gray-200);
    padding: 1.5rem;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.card-body {
    padding: 1.5rem;
}

/* Glass Morphism Cards */
.glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    transition: all 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.25);
}

/* Glass Card Border Animation */
.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
    transition: 0.6s;
}

.glass-card:hover::before {
    transform: translateX(100%);
}

/* Gradient Cards */
.gradient-card {
    background: var(--gradient-primary);
    color: white;
}

.gradient-card-success {
    background: var(--gradient-success);
    color: white;
}

.gradient-card-warning {
    background: var(--gradient-warning);
    color: white;
}

/* Floating Cards */
.floating-card {
    position: relative;
    overflow: hidden;
    animation: float 6s ease-in-out infinite;
}

.floating-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: 0.5s;
}

.floating-card:hover::before {
    transform: translateX(100%);
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* Floating Card Shadow */
.floating-card::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 10px;
    bottom: -10px;
    left: 0;
    background: radial-gradient(ellipse at center, rgba(0,0,0,0.15) 0%, transparent 70%);
    animation: shadowFloat 6s ease-in-out infinite;
}

@keyframes shadowFloat {
    0% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(0.85);
        opacity: 0.2;
    }
    100% {
        transform: scale(1);
        opacity: 0.3;
    }
}

/* Enhanced Button Styles */
.btn {
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

/* Button Hover Animation */
.btn::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: -100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: 0.5s;
}

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

/* Gradient Buttons */
.btn-primary {
    background: var(--gradient-primary);
    border: none;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.35);
}

.btn-success {
    background: var(--gradient-success);
    border: none;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

.btn-soft-primary {
    background: var(--primary-light);
    color: var(--primary-color);
    border: none;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.btn-soft-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    z-index: -1;
    transition: 0.3s ease;
    opacity: 0;
}

.btn-soft-primary:hover {
    color: white;
}

.btn-soft-primary:hover::before {
    opacity: 1;
}

/* Animated Icon Button */
.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    color: var(--gray-600);
    transition: var(--transition-smooth);
}

.btn-icon:hover {
    background: var(--primary-light);
    color: var(--primary-color);
    transform: rotate(15deg);
}

/* Modern Form Controls */
.form-control {
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    transition: var(--transition-base);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Enhanced Navigation */
.navbar {
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.25rem;
}

.nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem;
    color: var(--gray-700);
    transition: var(--transition-base);
}

.nav-link:hover {
    color: var(--primary-color);
}

/* Metric Cards */
.metric-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: var(--transition-smooth);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.metric-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
    transition: 0.5s;
}

.metric-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.metric-card:hover::after {
    transform: translateX(100%);
}

.metric-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    font-size: 1.25rem;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.metric-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: inherit;
    filter: brightness(1.1);
    opacity: 0;
    transition: var(--transition-base);
    z-index: -1;
}

.metric-icon:hover::before {
    opacity: 1;
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

.metric-label {
    color: var(--gray-600);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Metric Card Variants */
.metric-card-success .metric-value {
    background: var(--gradient-success);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.metric-card-warning .metric-value {
    background: var(--gradient-warning);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Progress Indicators */
.progress {
    height: 0.5rem;
    border-radius: 1rem;
    background-color: var(--gray-200);
}

.progress-bar {
    background-color: var(--primary-color);
    border-radius: 1rem;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

/* Dark Mode Styles */
[data-theme="dark"] {
    --primary-light: #1e1b4b;
    background-color: var(--gray-900);
    color: white;
}

[data-theme="dark"] .card {
    background-color: var(--gray-800);
    border-color: var(--gray-700);
}

[data-theme="dark"] .navbar {
    background-color: var(--gray-800) !important;
}

[data-theme="dark"] .nav-link {
    color: var(--gray-300);
}

[data-theme="dark"] .nav-link:hover {
    color: white;
}

/* Loading States */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    position: relative;
}

.loading-spinner::before,
.loading-spinner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--gradient-primary);
    animation: pulse 2s ease-out infinite;
    opacity: 0.6;
}

.loading-spinner::after {
    animation-delay: -1s;
}

@keyframes pulse {
    0% {
        transform: scale(0);
        opacity: 0.6;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

/* Progress Animation */
.progress-ring {
    transform: rotate(-90deg);
    transform-origin: 50% 50%;
}

.progress-ring-circle {
    stroke: var(--primary-color);
    stroke-linecap: round;
    transition: stroke-dashoffset 0.35s;
    transform-origin: 50% 50%;
}

.progress-ring-background {
    stroke: var(--gray-200);
}

/* Tooltips */
.tippy-box {
    background-color: var(--dark-color);
    color: white;
    border-radius: 0.5rem;
    font-size: 0.875rem;
}

/* Charts and Visualizations */
.chart-container {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.12);
}

[data-theme="dark"] .chart-container {
    background: var(--gray-800);
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar {
        padding: 0.5rem 0;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .metric-card {
        margin-bottom: 1rem;
    }
}