/* ==========================================================================
   Odin Design System - Global CSS Variables and Base Styles
   Modern, clean design with consistent spacing, colors, and animations.
   ========================================================================== */

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   ========================================================================== */
:root {
    /* Primary Color Palette */
    --odin-primary: #3b82f6;
    --odin-primary-light: #60a5fa;
    --odin-primary-lighter: #93c5fd;
    --odin-primary-dark: #2563eb;
    --odin-primary-darker: #1d4ed8;

    /* Secondary Colors */
    --odin-secondary: #6366f1;
    --odin-secondary-light: #818cf8;
    --odin-secondary-dark: #4f46e5;

    /* Accent Colors */
    --odin-accent: #8b5cf6;
    --odin-accent-light: #a78bfa;
    --odin-accent-dark: #7c3aed;

    /* Semantic Colors */
    --odin-success: #10b981;
    --odin-success-light: #34d399;
    --odin-success-dark: #059669;
    --odin-success-bg: rgba(16, 185, 129, 0.1);

    --odin-warning: #f59e0b;
    --odin-warning-light: #fbbf24;
    --odin-warning-dark: #d97706;
    --odin-warning-bg: rgba(245, 158, 11, 0.1);

    --odin-danger: #ef4444;
    --odin-danger-light: #f87171;
    --odin-danger-dark: #dc2626;
    --odin-danger-bg: rgba(239, 68, 68, 0.1);

    --odin-info: #0ea5e9;
    --odin-info-light: #38bdf8;
    --odin-info-dark: #0284c7;
    --odin-info-bg: rgba(14, 165, 233, 0.1);

    /* Neutral Colors */
    --odin-gray-50: #f8fafc;
    --odin-gray-100: #f1f5f9;
    --odin-gray-200: #e2e8f0;
    --odin-gray-300: #cbd5e1;
    --odin-gray-400: #94a3b8;
    --odin-gray-500: #64748b;
    --odin-gray-600: #475569;
    --odin-gray-700: #334155;
    --odin-gray-800: #1e293b;
    --odin-gray-900: #0f172a;
    --odin-gray-950: #020617;

    /* Background Colors */
    --odin-bg-primary: #ffffff;
    --odin-bg-secondary: #f8fafc;
    --odin-bg-tertiary: #f1f5f9;
    --odin-bg-elevated: #ffffff;

    /* Text Colors */
    --odin-text-primary: #1e293b;
    --odin-text-secondary: #64748b;
    --odin-text-tertiary: #94a3b8;
    --odin-text-muted: #cbd5e1;

    /* Border Colors */
    --odin-border-light: #f1f5f9;
    --odin-border-default: #e2e8f0;
    --odin-border-dark: #cbd5e1;

    /* Sidebar Colors */
    --odin-sidebar-bg: #0f172a;
    --odin-sidebar-text: rgba(255, 255, 255, 0.85);
    --odin-sidebar-text-muted: rgba(255, 255, 255, 0.55);
    --odin-sidebar-hover: rgba(255, 255, 255, 0.06);
    --odin-sidebar-active: rgba(59, 130, 246, 0.15);
    --odin-sidebar-active-text: #ffffff;

    /* Typography Scale */
    --odin-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --odin-font-mono: 'JetBrains Mono', 'Fira Code', Consolas, Monaco, 'Courier New', monospace;

    --odin-text-xs: 0.75rem;
    --odin-text-sm: 0.875rem;
    --odin-text-base: 1rem;
    --odin-text-lg: 1.125rem;
    --odin-text-xl: 1.25rem;
    --odin-text-2xl: 1.5rem;
    --odin-text-3xl: 1.875rem;
    --odin-text-4xl: 2.25rem;

    /* Font Weights */
    --odin-font-normal: 400;
    --odin-font-medium: 500;
    --odin-font-semibold: 600;
    --odin-font-bold: 700;

    /* Spacing Scale */
    --odin-space-1: 0.25rem;
    --odin-space-2: 0.5rem;
    --odin-space-3: 0.75rem;
    --odin-space-4: 1rem;
    --odin-space-5: 1.25rem;
    --odin-space-6: 1.5rem;
    --odin-space-8: 2rem;
    --odin-space-10: 2.5rem;
    --odin-space-12: 3rem;
    --odin-space-16: 4rem;

    /* Border Radius */
    --odin-radius-sm: 6px;
    --odin-radius-md: 8px;
    --odin-radius-lg: 12px;
    --odin-radius-xl: 16px;
    --odin-radius-2xl: 20px;
    --odin-radius-full: 9999px;

    /* Shadows */
    --odin-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --odin-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --odin-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --odin-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --odin-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --odin-shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.2);
    --odin-shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);

    /* Colored Shadows */
    --odin-shadow-primary: 0 4px 14px rgba(59, 130, 246, 0.25);
    --odin-shadow-success: 0 4px 14px rgba(16, 185, 129, 0.25);
    --odin-shadow-warning: 0 4px 14px rgba(245, 158, 11, 0.25);
    --odin-shadow-danger: 0 4px 14px rgba(239, 68, 68, 0.25);

    /* Transitions */
    --odin-transition-fast: 0.15s ease;
    --odin-transition-normal: 0.2s ease;
    --odin-transition-slow: 0.3s ease;
    --odin-transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-Index Scale */
    --odin-z-dropdown: 100;
    --odin-z-sticky: 200;
    --odin-z-fixed: 300;
    --odin-z-overlay: 400;
    --odin-z-modal: 500;
    --odin-z-popover: 600;
    --odin-z-tooltip: 700;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */
html, body {
    font-family: var(--odin-font-family);
    font-size: 16px;
    line-height: 1.5;
    color: var(--odin-text-primary);
    background-color: var(--odin-bg-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

* {
    box-sizing: border-box;
}

/* ==========================================================================
   Links and Buttons
   ========================================================================== */
a, .btn-link {
    color: var(--odin-primary);
    text-decoration: none;
    transition: color var(--odin-transition-fast);
}

a:hover, .btn-link:hover {
    color: var(--odin-primary-dark);
}

.btn-primary {
    color: #fff;
    background-color: var(--odin-primary);
    border-color: var(--odin-primary-dark);
    transition: all var(--odin-transition-fast);
}

.btn-primary:hover {
    background-color: var(--odin-primary-dark);
    box-shadow: var(--odin-shadow-primary);
}

/* ==========================================================================
   Form Elements
   ========================================================================== */
.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--odin-primary-light);
}

.valid.modified:not([type=checkbox]) {
    outline: 2px solid var(--odin-success);
    outline-offset: -2px;
}

.invalid {
    outline: 2px solid var(--odin-danger);
    outline-offset: -2px;
}

.validation-message {
    color: var(--odin-danger);
    font-size: var(--odin-text-sm);
    margin-top: var(--odin-space-1);
}

/* ==========================================================================
   Focus Styles
   ========================================================================== */
h1:focus {
    outline: none;
}

.content {
    padding-top: 1.1rem;
}

/* ==========================================================================
   Error Boundaries
   ========================================================================== */
.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, var(--odin-danger);
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
    border-radius: var(--odin-radius-md);
    margin: var(--odin-space-4);
}

.blazor-error-boundary::after {
    content: "Si è verificato un errore.";
}

.darker-border-checkbox.form-check-input {
    border-color: var(--odin-gray-400);
}

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

::-webkit-scrollbar-track {
    background: var(--odin-gray-100);
    border-radius: var(--odin-radius-full);
}

::-webkit-scrollbar-thumb {
    background: var(--odin-gray-300);
    border-radius: var(--odin-radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--odin-gray-400);
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

/* Gradients */
.gradient-primary {
    background: linear-gradient(135deg, var(--odin-primary) 0%, var(--odin-secondary) 100%);
}

.gradient-success {
    background: linear-gradient(135deg, var(--odin-success) 0%, #059669 100%);
}

.gradient-warning {
    background: linear-gradient(135deg, var(--odin-warning) 0%, #ea580c 100%);
}

.gradient-danger {
    background: linear-gradient(135deg, var(--odin-danger) 0%, #dc2626 100%);
}

.gradient-info {
    background: linear-gradient(135deg, var(--odin-info) 0%, #0284c7 100%);
}

.gradient-purple {
    background: linear-gradient(135deg, var(--odin-accent) 0%, #7c3aed 100%);
}

/* Glass Effect */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Card Hover Effects */
.hover-lift {
    transition: transform var(--odin-transition-smooth), box-shadow var(--odin-transition-smooth);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--odin-shadow-lg);
}

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--odin-gray-200) 0%,
        var(--odin-gray-100) 50%,
        var(--odin-gray-200) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
    border-radius: var(--odin-radius-md);
}

@keyframes skeleton-pulse {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Fade In Animation */
.fade-in {
    animation: fadeIn var(--odin-transition-slow);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Slide In Animation */
.slide-in-left {
    animation: slideInLeft var(--odin-transition-smooth);
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

.slide-in-right {
    animation: slideInRight var(--odin-transition-smooth);
}

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

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Badge Pulse (for notifications) */
.badge-pulse {
    animation: badgePulse 1.5s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    50% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
}

/* ==========================================================================
   Radzen Component Overrides for Odin Design System
   ========================================================================== */

/* Card Enhancements */
.rz-card {
    border-radius: var(--odin-radius-lg) !important;
    box-shadow: var(--odin-shadow-sm) !important;
    border: 1px solid var(--odin-border-light) !important;
    transition: all var(--odin-transition-smooth) !important;
}

.rz-card:hover {
    box-shadow: var(--odin-shadow-md) !important;
}

/* Button Enhancements */
.rz-button {
    border-radius: var(--odin-radius-md) !important;
    font-weight: var(--odin-font-medium) !important;
    transition: all var(--odin-transition-fast) !important;
}

.rz-button.rz-button-md {
    padding: 0.625rem 1.25rem !important;
}

/* Data Grid Enhancements */
.rz-datatable {
    border-radius: var(--odin-radius-lg) !important;
    overflow: hidden !important;
    border: 1px solid var(--odin-border-light) !important;
}

.rz-datatable .rz-datatable-thead th {
    background: var(--odin-gray-50) !important;
    font-weight: var(--odin-font-semibold) !important;
    color: var(--odin-text-secondary) !important;
    text-transform: uppercase !important;
    font-size: var(--odin-text-xs) !important;
    letter-spacing: 0.05em !important;
    padding: var(--odin-space-4) !important;
}

.rz-datatable .rz-datatable-data tr:hover {
    background: var(--odin-gray-50) !important;
}

/* Input Enhancements */
.rz-textbox {
    border-radius: var(--odin-radius-md) !important;
    border: 1px solid var(--odin-border-default) !important;
    transition: all var(--odin-transition-fast) !important;
}

.rz-textbox:focus-within {
    border-color: var(--odin-primary) !important;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15) !important;
}

/* Badge Enhancements */
.rz-badge {
    border-radius: var(--odin-radius-full) !important;
    font-weight: var(--odin-font-semibold) !important;
    font-size: var(--odin-text-xs) !important;
    letter-spacing: 0.02em !important;
}

/* Alert Enhancements */
.rz-alert {
    border-radius: var(--odin-radius-lg) !important;
    border: none !important;
    padding: var(--odin-space-4) var(--odin-space-5) !important;
}

/* Dropdown Enhancements */
.rz-dropdown, .rz-multiselect {
    border-radius: var(--odin-radius-md) !important;
}

.rz-popup {
    border-radius: var(--odin-radius-lg) !important;
    box-shadow: var(--odin-shadow-xl) !important;
    border: 1px solid var(--odin-border-light) !important;
}

/* ==========================================================================
   Main Application Layout - Global Styles
   These styles must be global to work correctly with Blazor layouts.
   ========================================================================== */

/* Layout CSS Variables */
:root {
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 0px;
    --header-height: 64px;
    --layout-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Main Layout Container */
.app-layout {
    display: flex;
    min-height: 100vh;
    width: 100%;
    background: var(--odin-bg-secondary);
    position: relative;
}

/* Sidebar - Fixed position, adjacent to content */
.app-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: #ffffff;
    border-right: 1px solid var(--odin-border-default);
    z-index: 1000;
    transition: transform var(--layout-transition), width var(--layout-transition);
    overflow: hidden;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.04);
}

/* Sidebar collapsed - slide off screen */
.sidebar-collapsed .app-sidebar {
    transform: translateX(-100%);
}

/* Main content area - positioned next to sidebar */
.app-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin-left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
    transition: margin-left var(--layout-transition), width var(--layout-transition);
}

/* When sidebar is collapsed, main takes full width */
.sidebar-collapsed .app-main {
    margin-left: 0;
    width: 100%;
}

/* Header - sticky at top */
.app-header {
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--odin-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.header-start,
.header-end {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Content area */
.app-content {
    flex: 1;
    padding: 1.5rem 2rem;
    overflow-x: hidden;
}

/* Menu Toggle Button */
.menu-toggle {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.15s ease;
    color: var(--odin-text-secondary);
}

.menu-toggle:hover {
    background: rgba(59, 130, 246, 0.08);
    color: var(--odin-primary);
}

.menu-toggle:active {
    transform: scale(0.92);
}

/* Hamburger Icon */
.menu-icon {
    width: 20px;
    height: 14px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.bar {
    display: block;
    width: 100%;
    height: 2px;
    background-color: currentColor;
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.menu-icon.collapsed .bar-top {
    transform: translateY(6px) rotate(45deg);
}

.menu-icon.collapsed .bar-middle {
    opacity: 0;
    transform: scaleX(0);
}

.menu-icon.collapsed .bar-bottom {
    transform: translateY(-6px) rotate(-45deg);
}

/* Mobile Overlay */
.sidebar-overlay {
    display: none;
}

/* Responsive - Mobile */
@media (max-width: 768px) {
    :root {
        --header-height: 56px;
    }

    .app-sidebar {
        width: 280px;
        box-shadow: 8px 0 30px rgba(0, 0, 0, 0.2);
    }

    .sidebar-collapsed .app-sidebar {
        transform: translateX(-100%);
    }

    .app-main {
        margin-left: 0 !important;
        width: 100% !important;
    }

    .app-header {
        padding: 0 1rem;
    }

    .app-content {
        padding: 1rem;
    }

    .sidebar-overlay.mobile-only {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.6);
        z-index: 999;
        backdrop-filter: blur(4px);
    }

    .sidebar-collapsed .sidebar-overlay.mobile-only {
        display: none;
    }
}