:root {
    /* Core colors */
    --primary-color: #594ae2;
    --primary-light: #7468e7;
    --primary-dark: #4939c7;
    --error-color: #ff3b30;
    --success-color: #34c759;
    --warning-color: #ff9500;
    
    /* Text colors */
    --text-primary: rgba(0, 0, 0, 0.87);
    --text-secondary: rgba(0, 0, 0, 0.6);
    --text-tertiary: rgba(0, 0, 0, 0.38);
    --text-on-primary: #ffffff;
    
    /* Background colors */
    --background-primary: #ffffff;
    --background-secondary: #f5f5f7;
    --background-tertiary: #fafafa;
    --background-elevated: #ffffff;
    
    /* Typography */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --letter-spacing-tight: -0.02em;
    --letter-spacing-normal: 0;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Borders & Shadows */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-full: 9999px;
    --box-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --box-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --box-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index */
    --z-index-dropdown: 1000;
    --z-index-modal: 1100;
    --z-index-toast: 1200;
}

/* Base styles */
html {
    font-size: 16px;
    text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
}

html, body {
    font-family: var(--font-family);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: var(--background-primary);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
    line-height: var(--line-height-normal);
    scroll-behavior: smooth;
    overflow-x: hidden;
}

/* Focus styles */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    border-radius: var(--border-radius-sm);
}

/* Loading screen */
.loading-screen {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: var(--text-on-primary);
    z-index: var(--z-index-modal);
    opacity: 1;
    transition: opacity var(--transition-normal);
}

.loading-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loading-progress {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.loading-progress-text {
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 500;
    letter-spacing: var(--letter-spacing-tight);
    opacity: 0.9;
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Error UI */
#blazor-error-ui {
    background: var(--error-color);
    bottom: env(safe-area-inset-bottom, 0);
    color: var(--text-on-primary);
    display: none;
    font-weight: 500;
    left: 0;
    padding: var(--spacing-md) var(--spacing-lg);
    position: fixed;
    width: 100%;
    z-index: var(--z-index-toast);
    box-shadow: var(--box-shadow-lg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

#blazor-error-ui.show {
    transform: translateY(0);
}

#blazor-error-ui .reload,
#blazor-error-ui .dismiss {
    color: var(--text-on-primary);
    opacity: 0.9;
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: opacity var(--transition-fast);
}

#blazor-error-ui .reload:hover,
#blazor-error-ui .dismiss:hover {
    opacity: 1;
}

#blazor-error-ui .dismiss {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
}

/* Adaplio Loader */
.adaplio-loader {
    position: relative;
    width: 40px;
    height: 40px;
    transform: rotate(45deg);
    margin-bottom: var(--spacing-lg);
    animation: loaderEnter var(--transition-normal) cubic-bezier(0.34, 1.56, 0.64, 1);
}

.adaplio-loader .inner {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--text-on-primary);
    border-radius: var(--border-radius-sm);
    animation: adaplioLoaderRotate 2s var(--transition-normal) infinite;
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.3));
}

.adaplio-loader .one {
    top: 0;
    left: 0;
    animation-delay: -0.3s;
}

.adaplio-loader .two {
    top: 0;
    right: 0;
    animation-delay: -0.2s;
}

.adaplio-loader .three {
    bottom: 0;
    right: 0;
    animation-delay: -0.1s;
}

.adaplio-loader .four {
    bottom: 0;
    left: 0;
    animation-delay: 0s;
}

@keyframes adaplioLoaderRotate {
    0%, 10% {
        transform: scale(1) rotate(0);
        opacity: 1;
    }
    30%, 50% {
        transform: scale(0.8) rotate(90deg);
        opacity: 0.7;
    }
    70%, 90% {
        transform: scale(1) rotate(180deg);
        opacity: 1;
    }
    100% {
        transform: scale(1) rotate(180deg);
        opacity: 1;
    }
}

@keyframes loaderEnter {
    from {
        transform: rotate(45deg) scale(0.8);
        opacity: 0;
    }
    to {
        transform: rotate(45deg) scale(1);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.9;
    }
    50% {
        opacity: 0.5;
    }
}

/* Login page styles */
.login-container {
    min-height: 100vh;
    width: 100%;
    margin: 0;
    padding: 0;
    max-width: none !important;
    position: relative;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

.login-card {
    width: 100%;
    max-width: 400px;
    z-index: 1;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-lg);
}

.logo-container {
    text-align: center;
}

.logo-text {
    font-weight: 600;
    letter-spacing: -0.5px;
}

.login-form {
    width: 100%;
}

.login-form .input-field {
    margin-bottom: var(--spacing-md);
}

/* Responsive Design */
@media (max-width: 640px) {
    html {
        font-size: 14px;
    }
    
    #blazor-error-ui {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* Print styles */
@media print {
    .adaplio-loader,
    #blazor-error-ui {
        display: none !important;
    }
}