/* Import Bootstrap Icons and Fonts */
@import url('https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.1/font/bootstrap-icons.css');
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* nvisionkc Brand Design System */
:root {
    /* Brand Colors */
    --nv-navy: #2C3E75;
    --nv-navy-dark: #1f2c52;
    --nv-navy-light: #3d528f;
    --nv-lime: #C4D82E;
    --nv-lime-dark: #a8bc27;
    --nv-lime-light: #d4e44e;

    /* UI Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fb;
    --bg-tertiary: #f0f2f5;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-tertiary: #718096;
    --border-color: #e2e8f0;
    --border-color-hover: #cbd5e0;

    /* 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);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;

    /* 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);
}

/* Base Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    margin: 0;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

/* Sidebar Navigation */
.sidebar {
    background: linear-gradient(180deg, #2C3E75 0%, #1f2c52 100%);
    min-height: 100vh;
    padding: 0;
    box-shadow: 2px 0 24px rgba(0, 0, 0, 0.12);
    position: relative;
}

.sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 300px;
    background: radial-gradient(ellipse at top, rgba(196, 216, 46, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.sidebar-heading {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.nav-link {
    color: rgba(255, 255, 255, 0.7);
    padding: 0.75rem 1.25rem;
    margin: 0.25rem 0.75rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-link i {
    font-size: 1.125rem;
    width: 20px;
}

.nav-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(2px);
}

.nav-link.active {
    color: var(--nv-navy);
    background: var(--nv-lime);
    font-weight: 600;
}

.nav-link.active:hover {
    background: var(--nv-lime-light);
    transform: translateX(0);
}

/* Cards */
.card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    overflow: hidden;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--nv-navy) 0%, var(--nv-lime) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.card:hover::before {
    opacity: 1;
}

.card-header {
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 1.5rem;
}

/* Dashboard Stat Cards */
.border-left-primary,
.border-left-success,
.border-left-info,
.border-left-warning {
    position: relative;
    overflow: hidden;
}

.border-left-primary:hover,
.border-left-success:hover,
.border-left-info:hover,
.border-left-warning:hover {
    transform: translateY(-4px) !important;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15) !important;
}

.border-left-primary .rounded-circle,
.border-left-success .rounded-circle,
.border-left-info .rounded-circle,
.border-left-warning .rounded-circle {
    transition: all var(--transition-slow);
}

.border-left-primary:hover .rounded-circle,
.border-left-success:hover .rounded-circle,
.border-left-info:hover .rounded-circle,
.border-left-warning:hover .rounded-circle {
    transform: rotate(10deg) scale(1.1);
}

.border-left-primary::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--nv-navy);
}

.border-left-success::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #10b981 0%, #059669 100%);
}

.border-left-info::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--nv-lime);
}

.border-left-warning::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #f59e0b 0%, #d97706 100%);
}

/* Buttons */
.btn {
    border-radius: var(--radius-md);
    font-weight: 600;
    padding: 0.625rem 1.25rem;
    font-size: 0.9375rem;
    transition: all var(--transition-base);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--nv-navy) 0%, var(--nv-navy-light) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(44, 62, 117, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--nv-navy-dark) 0%, var(--nv-navy) 100%);
    box-shadow: 0 6px 20px rgba(44, 62, 117, 0.4);
    transform: translateY(-2px);
}

.btn-success {
    background: linear-gradient(135deg, var(--nv-lime) 0%, var(--nv-lime-light) 100%);
    color: var(--nv-navy);
    box-shadow: 0 4px 12px rgba(196, 216, 46, 0.3);
    font-weight: 700;
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--nv-lime-light) 0%, #dce954 100%);
    box-shadow: 0 6px 20px rgba(196, 216, 46, 0.4);
    transform: translateY(-2px);
}

.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--nv-navy);
    color: var(--nv-navy);
}

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Tables */
.table {
    color: var(--text-primary);
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background: var(--bg-tertiary);
    border-bottom: 2px solid var(--border-color);
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    padding: 1rem 1.5rem;
    white-space: nowrap;
}

.table tbody td {
    padding: 1rem 1.5rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color);
}

.table-hover tbody tr {
    transition: all var(--transition-fast);
}

.table-hover tbody tr:hover {
    background-color: var(--bg-secondary);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* Badges */
.badge {
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.025em;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.badge:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.bg-success {
    background: #10b981 !important;
    color: white !important;
}

.bg-primary {
    background: var(--nv-navy) !important;
    color: white !important;
}

.bg-info {
    background: var(--nv-lime) !important;
    color: var(--nv-navy) !important;
}

.bg-warning {
    background: #f59e0b !important;
    color: white !important;
}

.bg-danger {
    background: #ef4444 !important;
    color: white !important;
}

.bg-secondary {
    background: #6b7280 !important;
    color: white !important;
}

/* Forms */
.form-label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-control,
.form-select {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    transition: all var(--transition-base);
    font-size: 0.9375rem;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--nv-lime);
    box-shadow: 0 0 0 3px rgba(196, 216, 46, 0.1);
    outline: none;
}

.input-group-text {
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-right: none;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Alerts */
.alert {
    border: none;
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    border-left: 4px solid;
}

.alert-info {
    background: rgba(196, 216, 46, 0.1);
    color: var(--nv-navy);
    border-left-color: var(--nv-lime);
}

/* Loading Spinner */
.spinner-border {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    vertical-align: text-bottom;
    border: 0.25em solid var(--nv-lime);
    border-right-color: transparent;
    border-radius: 50%;
    animation: spinner-border 0.75s linear infinite;
}

@keyframes spinner-border {
    to {
        transform: rotate(360deg);
    }
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Utility Classes */
.text-xs {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.font-weight-bold {
    font-weight: 700 !important;
}

.text-uppercase {
    text-transform: uppercase !important;
}

.text-muted {
    color: var(--text-tertiary) !important;
}

.shadow {
    box-shadow: var(--shadow-md) !important;
}

/* Page Layout */
main {
    background: var(--bg-secondary);
    min-height: 100vh;
    position: relative;
}

main::before {
    content: '';
    position: fixed;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(196, 216, 46, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

main > * {
    position: relative;
    z-index: 1;
}

/* Blazor Error UI */
#blazor-error-ui {
    background: #ef4444;
    color: white;
    bottom: 0;
    box-shadow: var(--shadow-xl);
    display: none;
    left: 0;
    padding: 1rem 1.5rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 1.25rem;
    opacity: 0.8;
    transition: opacity var(--transition-base);
}

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

/* Pagination Styles */
.pagination {
    gap: 0.25rem;
}

.pagination .page-link {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--nv-navy);
    font-weight: 500;
    padding: 0.5rem 0.875rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.pagination .page-link:hover:not(:disabled) {
    background: var(--nv-navy);
    color: white;
    border-color: var(--nv-navy);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.pagination .page-item.active .page-link {
    background: linear-gradient(135deg, var(--nv-navy) 0%, var(--nv-navy-light) 100%);
    border-color: var(--nv-navy);
    color: white;
    box-shadow: 0 4px 12px rgba(44, 62, 117, 0.3);
}

.pagination .page-item.disabled .page-link {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-tertiary);
    cursor: not-allowed;
    opacity: 0.6;
}

/* Smooth Page Transitions */
@media (prefers-reduced-motion: no-preference) {
    * {
        scroll-behavior: smooth;
    }
}