/* ===================================
   MODERN DESIGN SYSTEM
   =================================== */

:root {
    /* Base Colors - Neutral palette for app UI */
    --app-primary: #af1251;
    --app-primary-hover: #8d0e41;
    --app-secondary: #64748b;
    --app-success: #10b981;
    --app-danger: #ef4444;
    --app-warning: #f59e0b;
    --app-info: #3b82f6;
    
    /* Neutral Grays */
    --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;
    
    /* Spacing System */
    --space-xs: 0.25rem;   /* 4px */
    --space-sm: 0.5rem;    /* 8px */
    --space-md: 1rem;      /* 16px */
    --space-lg: 1.5rem;    /* 24px */
    --space-xl: 2rem;      /* 32px */
    --space-2xl: 3rem;     /* 48px */
    --space-3xl: 4rem;     /* 64px */
    
    /* Typography */
    --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    --font-family-display: 'Inter', system-ui, sans-serif;
    --font-size-xs: 0.75rem;   /* 12px */
    --font-size-sm: 0.875rem;  /* 14px */
    --font-size-base: 1rem;    /* 16px */
    --font-size-lg: 1.125rem;  /* 18px */
    --font-size-xl: 1.25rem;   /* 20px */
    --font-size-2xl: 1.5rem;   /* 24px */
    --font-size-3xl: 1.875rem; /* 30px */
    --font-size-4xl: 2.25rem;  /* 36px */
    
    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Border Radius */
    --radius-sm: 0.375rem;  /* 6px */
    --radius-md: 0.5rem;    /* 8px */
    --radius-lg: 0.75rem;   /* 12px */
    --radius-xl: 1rem;      /* 16px */
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ===================================
   BASE STYLES
   =================================== */

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html, body {
    font-family: var(--font-family-base);
    color: var(--gray-900);
    line-height: 1.6;
    background-color: var(--gray-50);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-display);
    font-weight: var(--font-weight-semibold);
    line-height: 1.3;
    margin-bottom: var(--space-md);
    color: var(--gray-900);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

h1:focus, h2:focus, h3:focus, h4:focus, h5:focus, h6:focus {
    outline: none;
}

p {
    margin-bottom: var(--space-md);
    color: var(--gray-700);
}

a, .btn-link {
    color: var(--app-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover, .btn-link:hover {
    color: var(--app-primary-hover);
    text-decoration: underline;
}

.content {
    padding-top: var(--space-lg);
}

/* ===================================
   MODERN BUTTONS
   =================================== */

.btn {
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    padding: 0.625rem 1.25rem;
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    box-shadow: var(--shadow-xs);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-xs);
}

.btn-primary {
    color: white;
    background-color: var(--app-primary);
    border-color: var(--app-primary);
}

.btn-primary:hover {
    background-color: var(--app-primary-hover);
    border-color: var(--app-primary-hover);
    color: white;
}

.btn-secondary {
    color: white;
    background-color: var(--app-secondary);
    border-color: var(--app-secondary);
}

.btn-secondary:hover {
    background-color: var(--gray-600);
    border-color: var(--gray-600);
    color: white;
}

.btn-success {
    color: white;
    background-color: var(--app-success);
    border-color: var(--app-success);
}

.btn-success:hover {
    background-color: #059669;
    border-color: #059669;
    color: white;
}

.btn-danger {
    color: white;
    background-color: var(--app-danger);
    border-color: var(--app-danger);
}

.btn-danger:hover {
    background-color: #dc2626;
    border-color: #dc2626;
    color: white;
}

.btn-outline-primary {
    color: var(--app-primary);
    border-color: var(--app-primary);
    background-color: transparent;
}

.btn-outline-primary:hover {
    background-color: var(--app-primary);
    color: white;
}

.btn-sm {
    padding: 0.375rem 0.875rem;
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-base);
}

/* ===================================
   MODERN FORMS
   =================================== */

.form-control, .form-select {
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-300);
    padding: 0.625rem 0.875rem;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    background-color: white;
    color: var(--gray-900);
}

.form-control:focus, .form-select:focus {
    border-color: var(--app-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    outline: none;
}

.form-control::placeholder {
    color: var(--gray-400);
}

.form-label {
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    color: var(--gray-700);
    margin-bottom: var(--space-xs);
    display: block;
}

.form-check-input {
    border-color: var(--gray-300);
    border-radius: var(--radius-sm);
}

.form-check-input:focus {
    border-color: var(--app-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-check-input:checked {
    background-color: var(--app-primary);
    border-color: var(--app-primary);
}

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

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
    color: var(--gray-400);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* ===================================
   VALIDATION STYLES
   =================================== */

.valid.modified:not([type=checkbox]) {
    border-color: var(--app-success);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.invalid {
    border-color: var(--app-danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.validation-message {
    color: var(--app-danger);
    font-size: var(--font-size-xs);
    margin-top: var(--space-xs);
    display: block;
}

/* ===================================
   MODERN CARDS
   =================================== */

.card {
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    background-color: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--space-lg);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.card-body {
    padding: var(--space-lg);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--gray-900);
    margin-bottom: var(--space-sm);
}

.card-subtitle {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin-bottom: var(--space-md);
}

/* ===================================
   BADGES & ALERTS
   =================================== */

.badge {
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-xs);
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.alert {
    border-radius: var(--radius-lg);
    border: 1px solid;
    padding: var(--space-md) var(--space-lg);
    margin-bottom: var(--space-md);
}

.alert-success {
    background-color: #f0fdf4;
    border-color: #86efac;
    color: #166534;
}

.alert-danger {
    background-color: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

.alert-warning {
    background-color: #fffbeb;
    border-color: #fde68a;
    color: #92400e;
}

.alert-info {
    background-color: #eff6ff;
    border-color: #bfdbfe;
    color: #1e40af;
}

/* ===================================
   TABLES
   =================================== */

.table {
    font-size: var(--font-size-sm);
}

.table thead th {
    font-weight: var(--font-weight-semibold);
    color: var(--gray-700);
    border-bottom: 2px solid var(--gray-300);
    padding: var(--space-md);
    background-color: var(--gray-50);
}

.table tbody td {
    padding: var(--space-md);
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-900);
}

.table-hover tbody tr:hover {
    background-color: var(--gray-50);
    transition: background-color var(--transition-fast);
}

/* ===================================
   ERROR BOUNDARY
   =================================== */

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

.blazor-error-boundary::after {
    content: "An error has occurred."
}

/* ===================================
   UTILITY CLASSES
   =================================== */

/* Spacing utilities */
.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--space-xs) !important; }
.mt-2 { margin-top: var(--space-sm) !important; }
.mt-3 { margin-top: var(--space-md) !important; }
.mt-4 { margin-top: var(--space-lg) !important; }
.mt-5 { margin-top: var(--space-xl) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--space-xs) !important; }
.mb-2 { margin-bottom: var(--space-sm) !important; }
.mb-3 { margin-bottom: var(--space-md) !important; }
.mb-4 { margin-bottom: var(--space-lg) !important; }
.mb-5 { margin-bottom: var(--space-xl) !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--space-xs) !important; }
.p-2 { padding: var(--space-sm) !important; }
.p-3 { padding: var(--space-md) !important; }
.p-4 { padding: var(--space-lg) !important; }
.p-5 { padding: var(--space-xl) !important; }

/* Text utilities */
.text-muted { color: var(--gray-500) !important; }
.text-bold { font-weight: var(--font-weight-bold) !important; }
.text-semibold { font-weight: var(--font-weight-semibold) !important; }

/* Flexbox utilities */
.d-flex { display: flex !important; }
.flex-column { flex-direction: column !important; }
.align-items-center { align-items: center !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-center { justify-content: center !important; }
.gap-1 { gap: var(--space-xs) !important; }
.gap-2 { gap: var(--space-sm) !important; }
.gap-3 { gap: var(--space-md) !important; }
.gap-4 { gap: var(--space-lg) !important; }

/* Shadow utilities */
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }

/* Border radius utilities */
.rounded-sm { border-radius: var(--radius-sm) !important; }
.rounded-md { border-radius: var(--radius-md) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-full { border-radius: var(--radius-full) !important; }