/* Modern CSS Custom Properties for Design System */
:root {
    /* Primary Brand Colors */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-500: #10b981;
    --primary-600: #059669;
    --primary-700: #047857;
    --primary-700: #1d4ed8;
    --primary-900: #1e3a8a;
    
    /* Accent Colors */
    --accent-400: #f472b6;
    --accent-500: #ec4899;
    --accent-600: #db2777;
    
    /* Success/Error States */
    --success-400: #4ade80;
    --success-500: #22c55e;
    --success-600: #16a34a;
    --error-400: #f87171;
    --error-500: #ef4444;
    --error-600: #dc2626;
    
    /* Modern Grays with Subtle Emerald Tint */
    --gray-50: #f8faf9;
    --gray-100: #f1f5f3;
    --gray-200: #e2e8e5;
    --gray-300: #cbd5d1;
    --gray-400: #94a3a0;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e2d2b;
    --gray-900: #0f1716;
    
    /* Modern Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --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);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
}

/* Enhanced Loading Spinner */
.loading-spinner {
    border: 3px solid var(--gray-600);
    border-top: 3px solid var(--accent-500);
    border-radius: 50%;
    width: 28px;
    height: 28px;
    animation: spin 1s linear infinite;
    display: inline-block;
    margin-right: 8px;
    filter: drop-shadow(0 2px 4px rgba(236, 72, 153, 0.3));
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Enhanced Animations */
.fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

.slide-up {
    animation: slideUp var(--transition-slow) ease-out;
}

.scale-in {
    animation: scaleIn var(--transition-normal) ease-out;
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}
/* Modern Toast Notifications */
.toast {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 1000;
    padding: 16px 20px;
    border-radius: var(--radius-xl);
    color: white;
    font-weight: 500;
    transform: translateX(calc(100% + 24px));
    transition: all var(--transition-slow);
    max-width: 400px;
    min-width: 280px;
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 12px;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    background: linear-gradient(135deg, var(--success-500), var(--success-600));
}

.toast.error {
    background: linear-gradient(135deg, var(--error-500), var(--error-600));
}

.toast.info {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
}

.toast::before {
    content: '';
    width: 4px;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    border-radius: var(--radius-xl) 0 0 var(--radius-xl);
    background: rgba(255, 255, 255, 0.8);
}

/* Modern Typography System */
body { 
    font-family: 'Inter', sans-serif; 
    line-height: 1.6;
    font-feature-settings: 'cv11', 'ss01';
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 600;
    letter-spacing: -0.025em;
}

.text-display {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.05em;
}

.text-title {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.025em;
}

.text-body {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray-300);
}

.text-caption {
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--gray-400);
}

/* Enhanced Form Components */
.input-field { 
    background-color: var(--gray-600);
    color: var(--gray-100);
    border: 1px solid var(--gray-500);
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
    font-size: 0.875rem;
    font-weight: 500;
}

.input-field::placeholder { 
    color: var(--gray-400);
    font-weight: 400;
}

.input-field:focus { 
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), var(--shadow-md);
    transform: translateY(-1px);
}

.input-field:hover:not(:focus) {
    border-color: var(--gray-400);
    box-shadow: var(--shadow-md);
}

select.input-field option { 
    background-color: var(--gray-600);
    color: var(--gray-100);
    padding: 0.5rem;
}

/* Modern Button System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    line-height: 1;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
}

.btn-secondary {
    background: var(--gray-600);
    color: var(--gray-100);
    border: 1px solid var(--gray-500);
}

.btn-secondary:hover {
    background: var(--gray-500);
    border-color: var(--gray-400);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-500), var(--accent-600));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-accent:hover {
    background: linear-gradient(135deg, var(--accent-600), var(--accent-500));
}

.btn-success {
    background: linear-gradient(135deg, var(--success-500), var(--success-600));
    color: white;
}

.btn-error {
    background: linear-gradient(135deg, var(--error-500), var(--error-600));
    color: white;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
    border-radius: var(--radius-xl);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

/* Modern Card Components */
.card {
    background: var(--gray-800);
    border: 1px solid var(--gray-700);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--gray-600);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.card-body {
    padding: 1.5rem;
}

.card-header {
    padding: 1.5rem 1.5rem 0;
    border-bottom: 1px solid var(--gray-700);
    margin-bottom: 1.5rem;
}

.card-footer {
    padding: 0 1.5rem 1.5rem;
    border-top: 1px solid var(--gray-700);
    margin-top: 1.5rem;
}

/* Modern Modal System */
.custom-modal { 
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.custom-modal.hidden { 
    opacity: 0;
    pointer-events: none;
    backdrop-filter: blur(0px);
}

.custom-modal-content { 
    background: var(--gray-800);
    color: var(--gray-100);
    padding: 2rem;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
    width: 90%;
    max-width: 500px;
    transform: scale(0.95);
    transition: transform var(--transition-normal);
    border: 1px solid var(--gray-700);
    position: relative;
    overflow: hidden;
}

.custom-modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.custom-modal:not(.hidden) .custom-modal-content { 
    transform: scale(1);
}

.custom-modal-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.custom-modal-buttons button { 
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-fast);
    border: none;
    font-size: 0.875rem;
}

/* Enhanced Scrollbar */
::-webkit-scrollbar { 
    width: 8px;
    height: 8px;
} 

::-webkit-scrollbar-track { 
    background: var(--gray-800);
    border-radius: var(--radius-lg);
} 

::-webkit-scrollbar-thumb { 
    background: linear-gradient(180deg, var(--accent-500), var(--accent-600));
    border-radius: var(--radius-lg);
    border: 2px solid var(--gray-800);
} 

::-webkit-scrollbar-thumb:hover { 
    background: linear-gradient(180deg, var(--accent-400), var(--accent-500));
}

/* Chart Container */
.chart-container { 
    height: 400px;
    margin-bottom: 2rem;
    position: relative;
    background: var(--gray-800);
    border-radius: var(--radius-xl);
    padding: 1rem;
    border: 1px solid var(--gray-700);
}

/* SlimSelect Theme */
.ss-main { 
    color: var(--gray-300) !important;
    border: 1px solid var(--gray-500) !important;
    background-color: var(--gray-600) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-sm) !important;
}

.ss-main .ss-single-selected { 
    background-color: var(--gray-600) !important;
    color: var(--gray-100) !important;
    height: auto !important;
    padding: 0.75rem 1rem !important;
    font-weight: 500 !important;
}

.ss-main .ss-multi-selected { 
    background-color: var(--gray-600) !important;
    color: var(--gray-100) !important;
}

.ss-main .ss-multi-selected .ss-values .ss-value { 
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600)) !important;
    color: white !important;
    border-radius: var(--radius-md) !important;
    padding: 0.25rem 0.5rem !important;
    font-weight: 500 !important;
}

.ss-main .ss-multi-selected .ss-values .ss-value .ss-value-delete { 
    color: rgba(255, 255, 255, 0.8) !important;
}

.ss-main .ss-content { 
    background-color: var(--gray-700) !important;
    border: 1px solid var(--gray-600) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-lg) !important;
}

.ss-main .ss-content .ss-list .ss-option { 
    color: var(--gray-300) !important;
    padding: 0.75rem 1rem !important;
    transition: all var(--transition-fast) !important;
}

.ss-main .ss-content .ss-list .ss-option:hover, 
.ss-main .ss-content .ss-list .ss-option.ss-highlighted { 
    color: white !important;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600)) !important;
}

.ss-main .ss-content .ss-list .ss-option.ss-disabled { 
    color: var(--gray-500) !important;
    background-color: transparent !important;
}

.ss-main .ss-content .ss-search input { 
    color: var(--gray-100) !important;
    background-color: var(--gray-600) !important;
    border: 1px solid var(--gray-500) !important;
    border-radius: var(--radius-md) !important;
    padding: 0.5rem !important;
}

.ss-main .ss-content .ss-search input::placeholder { 
    color: var(--gray-400) !important;
}

.ss-main .ss-arrow span:after { 
    border-color: var(--gray-400) !important;
}

/* Navigation Toggle Buttons */
.view-toggle-btn {
    color: var(--gray-400);
    background: transparent;
    border: none;
    cursor: pointer;
}

.view-toggle-btn:hover {
    color: var(--gray-200);
    background: var(--gray-600);
}

.view-toggle-btn.bg-emerald-600,
.view-toggle-btn[class*="bg-blue"] {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600)) !important;
    color: white !important;
    box-shadow: var(--shadow-md);
}

.view-toggle-btn.text-white {
    color: white !important;
}

/* Responsive Design Enhancements */
@media (max-width: 768px) {
    .text-display {
        font-size: 2.5rem;
    }
    
    .card {
        margin: 0.5rem;
        border-radius: var(--radius-lg);
    }
    
    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 0.875rem;
    }
    
    .custom-modal-content {
        margin: 1rem;
        padding: 1.5rem;
    }
    
    nav .inline-flex {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
    }
    
    .view-toggle-btn {
        width: 100%;
        text-align: left;
        justify-content: flex-start;
    }
}

/* Enhanced Focus States */
.btn:focus,
.input-field:focus,
button:focus {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}

/* Hover Effects for Interactive Elements */
.card:hover .btn {
    transform: translateY(-1px);
}

/* Gradient Text Animation */
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.bg-gradient-to-r {
    background-size: 200% 200%;
    animation: gradientShift 4s ease infinite;
}