/* ===========================================
   MODERN DARK THEME - LICENSE PORTAL
   Clean, accessible, and professional
   =========================================== */

/* CSS Custom Properties (Theme Variables) */
:root {
    /* Primary Colors */
    --color-primary: #3b82f6;           /* Modern blue */
    --color-primary-dark: #2563eb;      /* Darker blue */
    --color-primary-light: #60a5fa;     /* Lighter blue */

    /* Accent Colors */
    --color-accent: #22d3ee;            /* Cyan accent */
    --color-accent-hover: #06b6d4;      /* Darker cyan */
    --color-accent-subtle: rgba(34, 211, 238, 0.1);

    /* Background Colors - Pure neutral, no color tint */
    --color-bg-dark: #09090b;           /* Darkest background */
    --color-bg-medium: #18181b;         /* Medium background */
    --color-bg-light: #27272a;          /* Light background */
    --color-bg-card: #1c1c1f;           /* Card background */
    --color-bg-elevated: #232326;       /* Elevated surfaces */
    --color-bg-input: #27272a;          /* Input background */
    --color-bg-hover: #3f3f46;          /* Hover state */

    /* Text Colors - Clean whites/grays, WCAG compliant */
    --color-text-primary: #fafafa;      /* Primary text */
    --color-text-secondary: #a1a1aa;    /* Secondary text (5.3:1 contrast) */
    --color-text-muted: #71717a;        /* Muted text (4.5:1 contrast) */
    --color-text-disabled: #52525b;     /* Disabled text */

    /* Border Colors */
    --color-border: #27272a;            /* Subtle border */
    --color-border-light: #3f3f46;      /* Light border */
    --color-border-focus: #3b82f6;      /* Focus state */

    /* Status Colors - Vibrant but not harsh */
    --color-success: #22c55e;           /* Green */
    --color-success-light: #4ade80;     /* Light green */
    --color-success-bg: rgba(34, 197, 94, 0.1);
    --color-danger: #ef4444;            /* Red */
    --color-danger-light: #f87171;      /* Light red */
    --color-danger-bg: rgba(239, 68, 68, 0.1);
    --color-warning: #f59e0b;           /* Amber */
    --color-warning-light: #fbbf24;     /* Light amber */
    --color-warning-bg: rgba(245, 158, 11, 0.1);
    --color-info: #3b82f6;              /* Blue */
    --color-info-light: #60a5fa;        /* Light blue */
    --color-info-bg: rgba(59, 130, 246, 0.1);

    /* Extended Status Colors */
    --color-purple: #a855f7;
    --color-purple-bg: rgba(168, 85, 247, 0.1);
    --color-indigo: #6366f1;
    --color-indigo-bg: rgba(99, 102, 241, 0.1);
    --color-orange: #f97316;
    --color-orange-bg: rgba(249, 115, 22, 0.1);

    /* Shadows - Softer, more subtle */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.12), 0 4px 6px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15), 0 10px 10px rgba(0, 0, 0, 0.08);

    /* Border Radius - Modern, rounded */
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Spacing scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
}

/* ===========================================
   GLOBAL STYLES
   =========================================== */

* {
    border-color: var(--color-border);
}

body {
    background-color: var(--color-bg-dark);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Override Tailwind gray backgrounds */
.bg-gray-50, .bg-gray-100 {
    background-color: var(--color-bg-dark) !important;
}

.bg-white {
    background-color: var(--color-bg-card) !important;
}

/* Text color overrides */
.text-gray-900, .text-gray-800, .text-gray-700 {
    color: var(--color-text-primary) !important;
}

.text-gray-600, .text-gray-500 {
    color: var(--color-text-secondary) !important;
}

.text-gray-400 {
    color: var(--color-text-muted) !important;
}

/* Border color overrides */
.border-gray-200, .border-gray-300 {
    border-color: var(--color-border) !important;
}

/* ===========================================
   TYPOGRAPHY
   =========================================== */

h1, h2, h3, h4, h5, h6 {
    color: var(--color-text-primary);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

h1 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: var(--space-6);
}

h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-4);
}

h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-3);
}

/* Page title with subtle accent */
.page-title {
    position: relative;
    padding-bottom: var(--space-3);
}

.page-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 3rem;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    border-radius: var(--radius-full);
}

/* ===========================================
   NAVIGATION
   =========================================== */

nav.bg-white {
    background-color: var(--color-bg-medium) !important;
    border-bottom: 1px solid var(--color-border) !important;
    box-shadow: var(--shadow-sm) !important;
    backdrop-filter: blur(8px);
}

nav a {
    color: var(--color-text-secondary) !important;
    transition: color var(--transition-fast) !important;
    font-weight: 500 !important;
}

nav a:hover {
    color: var(--color-text-primary) !important;
}

/* Active nav link */
nav a.border-blue-500,
nav a.border-blue-500.text-gray-900 {
    border-color: var(--color-accent) !important;
    color: var(--color-accent) !important;
}

/* Mobile menu */
#mobile-menu {
    background-color: var(--color-bg-medium) !important;
    border-top: 1px solid var(--color-border) !important;
}

#mobile-menu a {
    color: var(--color-text-secondary) !important;
    border-radius: var(--radius-md);
    margin: var(--space-1);
}

#mobile-menu a:hover {
    background-color: var(--color-bg-light) !important;
    color: var(--color-text-primary) !important;
}

#mobile-menu a.bg-blue-50 {
    background-color: var(--color-accent-subtle) !important;
    border-color: var(--color-accent) !important;
    color: var(--color-accent) !important;
}

/* Portal title/logo */
nav .text-blue-500 {
    color: var(--color-text-primary) !important;
    font-weight: 700 !important;
    letter-spacing: -0.02em !important;
}

/* ===========================================
   BUTTON COMPONENTS
   =========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.25;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 1px solid transparent;
    text-decoration: none;
    white-space: nowrap;
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--color-bg-dark), 0 0 0 4px var(--color-primary);
}

.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--color-bg-dark), 0 0 0 4px var(--color-primary);
}

/* Primary button */
.btn-primary {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

/* Secondary button */
.btn-secondary {
    background-color: var(--color-bg-light);
    color: var(--color-text-primary);
    border-color: var(--color-border-light);
}

.btn-secondary:hover {
    background-color: var(--color-bg-hover);
    border-color: var(--color-border-light);
}

/* Ghost button */
.btn-ghost {
    background-color: transparent;
    color: var(--color-text-secondary);
    border-color: transparent;
}

.btn-ghost:hover {
    background-color: var(--color-bg-light);
    color: var(--color-text-primary);
}

/* Success button */
.btn-success {
    background-color: var(--color-success);
    color: white;
    border-color: var(--color-success);
}

.btn-success:hover {
    background-color: #16a34a;
    border-color: #16a34a;
}

/* Danger button */
.btn-danger {
    background-color: var(--color-danger);
    color: white;
    border-color: var(--color-danger);
}

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

/* Outline danger */
.btn-danger-outline {
    background-color: transparent;
    color: var(--color-danger);
    border-color: var(--color-danger);
}

.btn-danger-outline:hover {
    background-color: var(--color-danger-bg);
}

/* Accent button */
.btn-accent {
    background-color: var(--color-accent);
    color: var(--color-bg-dark);
    border-color: var(--color-accent);
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
}

/* Disabled state */
.btn:disabled,
.btn.btn-disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button sizes */
.btn-xs {
    padding: 0.375rem 0.625rem;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

.btn-sm {
    padding: 0.5rem 0.875rem;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    border-radius: var(--radius-lg);
}

/* Icon button */
.btn-icon {
    padding: 0.5rem;
    aspect-ratio: 1;
}

/* ===========================================
   FORM INPUT COMPONENTS
   =========================================== */

.form-input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="datetime-local"],
input[type="date"],
input[type="time"],
input[type="search"],
textarea,
select {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    line-height: 1.25 !important;
    color: var(--color-text-primary);
    background-color: var(--color-bg-input);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

/* Fixed height for single-line inputs and selects */
.form-input:not(textarea),
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="datetime-local"],
input[type="date"],
input[type="time"],
input[type="search"],
select {
    height: 2.5rem;
}

.form-input::placeholder,
input::placeholder,
textarea::placeholder {
    color: var(--color-text-muted);
}

.form-input:hover,
input:hover,
textarea:hover,
select:hover {
    border-color: var(--color-border-light);
}

.form-input:focus,
input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-info-bg);
    background-color: var(--color-bg-elevated);
}

/* Select dropdown */
.form-select,
select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%23a1a1aa' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.25em 1.25em;
    padding-left: 0.875rem !important;
    padding-right: 2.5rem;
}

/* Form labels */
.form-label,
label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

/* Form description */
.form-description {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: var(--space-1);
}

/* Form error */
.form-error {
    margin-top: var(--space-2);
    font-size: 0.8125rem;
    color: var(--color-danger);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

/* Form help text */
.form-help {
    margin-top: var(--space-1);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* Error state */
.form-input-error,
.form-input.error,
input.error {
    border-color: var(--color-danger);
}

.form-input-error:focus,
.form-input.error:focus,
input.error:focus {
    box-shadow: 0 0 0 3px var(--color-danger-bg);
}

/* Checkbox and radio */
input[type="checkbox"],
input[type="radio"] {
    width: 1rem;
    height: 1rem;
    accent-color: var(--color-primary);
}

/* ===========================================
   BADGE COMPONENTS
   =========================================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-gray {
    background-color: var(--color-bg-light);
    color: var(--color-text-secondary);
}

.badge-green {
    background-color: var(--color-success-bg);
    color: var(--color-success-light);
}

.badge-red {
    background-color: var(--color-danger-bg);
    color: var(--color-danger-light);
}

.badge-blue {
    background-color: var(--color-info-bg);
    color: var(--color-info-light);
}

.badge-yellow {
    background-color: var(--color-warning-bg);
    color: var(--color-warning-light);
}

.badge-purple {
    background-color: var(--color-purple-bg);
    color: var(--color-purple);
}

.badge-indigo {
    background-color: var(--color-indigo-bg);
    color: var(--color-indigo);
}

.badge-orange {
    background-color: var(--color-orange-bg);
    color: var(--color-orange);
}

/* Badge with dot indicator */
.badge-dot {
    padding-left: 0.5rem;
}

.badge-dot::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    margin-right: 0.375rem;
    background-color: currentColor;
}

/* Status badges in tables - Tailwind overrides */
.bg-green-100 {
    background-color: var(--color-success-bg) !important;
}
.text-green-800 {
    color: var(--color-success-light) !important;
}

.bg-red-100 {
    background-color: var(--color-danger-bg) !important;
}
.text-red-800 {
    color: var(--color-danger-light) !important;
}

.bg-blue-100 {
    background-color: var(--color-info-bg) !important;
}
.text-blue-800 {
    color: var(--color-info-light) !important;
}

.bg-yellow-100 {
    background-color: var(--color-warning-bg) !important;
}
.text-yellow-800 {
    color: var(--color-warning-light) !important;
}

.bg-orange-100 {
    background-color: var(--color-orange-bg) !important;
}
.text-orange-800 {
    color: var(--color-orange) !important;
}

.bg-purple-100 {
    background-color: var(--color-purple-bg) !important;
}
.text-purple-800 {
    color: var(--color-purple) !important;
}

.bg-indigo-100 {
    background-color: var(--color-indigo-bg) !important;
}
.text-indigo-800 {
    color: var(--color-indigo) !important;
}

/* ===========================================
   CARD COMPONENTS
   =========================================== */

.card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-bg-medium);
}

.card-header h3 {
    margin-bottom: 0;
}

.card-body {
    padding: var(--space-5);
}

.card-footer {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--color-border);
    background-color: var(--color-bg-medium);
}

/* Tailwind card overrides */
.shadow, .shadow-sm {
    box-shadow: var(--shadow-sm) !important;
}

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

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

.rounded-lg {
    border-radius: var(--radius-lg) !important;
}

.rounded-xl {
    border-radius: var(--radius-xl) !important;
}

/* ===========================================
   TABLE STYLES
   =========================================== */

table {
    width: 100%;
    background-color: var(--color-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

thead {
    background-color: var(--color-bg-medium) !important;
}

th {
    color: var(--color-text-secondary) !important;
    font-weight: 500 !important;
    font-size: 0.8125rem !important;
    letter-spacing: 0.02em !important;
    padding: var(--space-3) var(--space-4) !important;
    text-align: left !important;
    border-bottom: 1px solid var(--color-border) !important;
}

td {
    color: var(--color-text-primary) !important;
    padding: var(--space-3) var(--space-4) !important;
    border-bottom: 1px solid var(--color-border) !important;
    font-size: 0.875rem !important;
}

tbody tr {
    transition: background-color var(--transition-fast);
}

tbody tr:hover {
    background-color: var(--color-bg-light) !important;
}

tbody tr:last-child td {
    border-bottom: none !important;
}

.divide-gray-200 > * + * {
    border-color: var(--color-border) !important;
}

/* Table wrapper for horizontal scroll */
.table-wrapper {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.table-wrapper table {
    border: none;
    border-radius: 0;
}

/* ===========================================
   MODAL COMPONENTS
   =========================================== */

.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.75);
    overflow-y: auto;
    height: 100%;
    width: 100%;
    z-index: 50;
    backdrop-filter: blur(4px);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: var(--space-8);
}

.modal-content {
    position: relative;
    margin-top: 5vh;
    width: 100%;
    max-width: 32rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background-color: var(--color-bg-card);
    box-shadow: var(--shadow-xl);
    animation: modal-enter 0.2s ease-out;
}

.modal-header {
    padding: var(--space-5);
    border-bottom: 1px solid var(--color-border);
}

.modal-body {
    padding: var(--space-5);
}

.modal-footer {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--color-border);
    background-color: var(--color-bg-medium);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
}

@keyframes modal-enter {
    from {
        opacity: 0;
        transform: translateY(-10px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ===========================================
   LOADING STATES
   =========================================== */

.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn-loading::after {
    content: "";
    position: absolute;
    width: 1rem;
    height: 1rem;
    top: 50%;
    left: 50%;
    margin-left: -0.5rem;
    margin-top: -0.5rem;
    border: 2px solid currentColor;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spinner 0.6s linear infinite;
}

.btn-loading.btn-primary::after,
.btn-loading.btn-success::after,
.btn-loading.btn-danger::after {
    border-color: rgba(255, 255, 255, 0.3);
    border-top-color: white;
}

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

.spinner {
    display: inline-block;
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid var(--color-border-light);
    border-radius: 50%;
    border-top-color: var(--color-primary);
    animation: spinner 0.6s linear infinite;
}

.spinner-sm { width: 1rem; height: 1rem; border-width: 2px; }
.spinner-lg { width: 1.5rem; height: 1.5rem; border-width: 2px; }
.spinner-xl { width: 2rem; height: 2rem; border-width: 3px; }

/* ===========================================
   SKELETON LOADERS
   =========================================== */

.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-light) 0%,
        var(--color-bg-elevated) 50%,
        var(--color-bg-light) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 1rem;
    margin-bottom: var(--space-2);
    border-radius: var(--radius-sm);
}

.skeleton-text:last-child {
    width: 70%;
}

.skeleton-circle {
    border-radius: 50%;
}

.skeleton-row {
    display: flex;
    align-items: center;
    padding: var(--space-4);
    gap: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.skeleton-cell {
    height: 1rem;
    flex: 1;
}

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

/* ===========================================
   TOAST NOTIFICATIONS
   =========================================== */

.toast-container {
    position: fixed;
    top: var(--space-4);
    right: var(--space-4);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-width: 24rem;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: flex-start;
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    animation: toast-slide-in 0.3s ease-out;
    pointer-events: auto;
}

.toast-success {
    border-left: 3px solid var(--color-success);
    background-color: var(--color-bg-elevated);
}
.toast-error {
    border-left: 3px solid var(--color-danger);
    background-color: var(--color-bg-elevated);
}
.toast-warning {
    border-left: 3px solid var(--color-warning);
    background-color: var(--color-bg-elevated);
}
.toast-info {
    border-left: 3px solid var(--color-info);
    background-color: var(--color-bg-elevated);
}

.toast-icon {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
    margin-right: var(--space-3);
}

.toast-success .toast-icon { color: var(--color-success); }
.toast-error .toast-icon { color: var(--color-danger); }
.toast-warning .toast-icon { color: var(--color-warning); }
.toast-info .toast-icon { color: var(--color-info); }

.toast-content {
    flex: 1;
    min-width: 0;
}

.toast-title {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
    line-height: 1.4;
}

.toast-message {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.toast-close {
    flex-shrink: 0;
    margin-left: var(--space-3);
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background-color var(--transition-fast);
    border: none;
    background: none;
}

.toast-close:hover {
    color: var(--color-text-primary);
    background-color: var(--color-bg-light);
}

.toast-exit {
    animation: toast-slide-out 0.2s ease-in forwards;
}

@keyframes toast-slide-in {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes toast-slide-out {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* ===========================================
   ACCESSIBILITY
   =========================================== */

.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-4);
    background: var(--color-primary);
    color: white;
    padding: var(--space-2) var(--space-4);
    z-index: 100;
    text-decoration: none;
    font-weight: 500;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
    outline: none;
}

/* Focus visible for keyboard users */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.focus-ring:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--color-bg-dark), 0 0 0 4px var(--color-primary);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===========================================
   FILTER COMPONENTS
   =========================================== */

.filters-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    align-items: center;
    padding: var(--space-4);
    background-color: var(--color-bg-medium);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.filters-active-indicator {
    display: inline-flex;
    align-items: center;
    margin-left: var(--space-3);
    padding: var(--space-1) var(--space-3);
    background-color: var(--color-info-bg);
    color: var(--color-info);
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    gap: var(--space-1);
}

.filters-active-indicator svg {
    width: 0.875rem;
    height: 0.875rem;
}

.clear-filters-btn {
    display: inline-flex;
    align-items: center;
    margin-left: var(--space-2);
    padding: var(--space-1) var(--space-2);
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    background-color: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    gap: var(--space-1);
}

.clear-filters-btn:hover {
    background-color: var(--color-bg-light);
    color: var(--color-text-primary);
    border-color: var(--color-border-light);
}

/* ===========================================
   TOGGLE SWITCH
   =========================================== */

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 3.5rem;
    height: 2rem;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg-hover);
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast);
}

.toggle-switch-slider::before {
    position: absolute;
    content: "";
    height: 1.5rem;
    width: 1.5rem;
    left: 0.25rem;
    bottom: 0.25rem;
    background-color: white;
    border-radius: 50%;
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-switch-slider {
    background-color: var(--color-primary);
}

.toggle-switch input:checked + .toggle-switch-slider::before {
    transform: translateX(1.5rem);
}

.toggle-switch input:focus + .toggle-switch-slider {
    box-shadow: 0 0 0 2px var(--color-bg-dark), 0 0 0 4px var(--color-primary);
}

/* Toggle label wrapper */
.toggle-label {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
}

.toggle-label-text {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

/* ===========================================
   RESPONSIVE UTILITIES
   =========================================== */

@media (max-width: 768px) {
    .filter-row {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-4);
    }

    .date-filters {
        justify-content: flex-start;
        flex-wrap: wrap;
    }

    .modal-content {
        margin: var(--space-4);
        max-width: calc(100% - 2rem);
    }

    .toast-container {
        left: var(--space-4);
        right: var(--space-4);
        max-width: none;
    }
}

input[type="datetime-local"],
input[type="date"],
input[type="time"] {
    min-width: 180px;
    height: 2.5rem; /* Match button height exactly */
    color-scheme: dark;
}

/* Dark theme for date/time picker calendar icon */
input[type="datetime-local"]::-webkit-calendar-picker-indicator,
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
    opacity: 0.7;
}

input[type="datetime-local"]::-webkit-calendar-picker-indicator:hover,
input[type="date"]::-webkit-calendar-picker-indicator:hover,
input[type="time"]::-webkit-calendar-picker-indicator:hover {
    opacity: 1;
}

/* Filter row button alignment */
.filter-buttons {
    display: flex;
    gap: var(--space-2);
    height: 2.5rem;
}

.filter-buttons .btn {
    height: 100%;
}

.action-buttons {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

/* ===========================================
   DIVIDERS & DECORATIVE
   =========================================== */

.divider {
    height: 1px;
    background-color: var(--color-border);
    margin: var(--space-4) 0;
}

.divider-vertical {
    width: 1px;
    height: 1.5rem;
    background-color: var(--color-border);
    margin: 0 var(--space-3);
}

/* Gradient accent line */
.accent-line {
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    border-radius: var(--radius-full);
}

/* Status indicator dots */
.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: var(--space-2);
}

.status-dot.active {
    background-color: var(--color-success);
    box-shadow: 0 0 0 2px var(--color-success-bg);
}
.status-dot.inactive {
    background-color: var(--color-danger);
    box-shadow: 0 0 0 2px var(--color-danger-bg);
}
.status-dot.pending {
    background-color: var(--color-warning);
    box-shadow: 0 0 0 2px var(--color-warning-bg);
}

/* Animated status dot */
.status-dot.pulse {
    animation: pulse 2s ease-in-out infinite;
}

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

/* ===========================================
   TAILWIND OVERRIDE UTILITIES
   =========================================== */

/* Ring colors */
.ring-blue-500, .focus\:ring-blue-500:focus {
    --tw-ring-color: var(--color-primary) !important;
}

.border-blue-500, .focus\:border-blue-500:focus {
    border-color: var(--color-primary) !important;
}

/* Link colors */
.text-blue-600, .text-blue-500 {
    color: var(--color-primary-light) !important;
}

.text-blue-600:hover, .text-blue-500:hover,
.hover\:text-blue-800:hover {
    color: var(--color-primary) !important;
}

/* Background hovers */
.hover\:bg-blue-50:hover {
    background-color: var(--color-info-bg) !important;
}

.hover\:bg-gray-50:hover {
    background-color: var(--color-bg-light) !important;
}

/* Text colors for actions */
.text-indigo-600 {
    color: var(--color-indigo) !important;
}

.hover\:text-indigo-800:hover {
    color: var(--color-primary-light) !important;
}

.hover\:bg-indigo-50:hover {
    background-color: var(--color-indigo-bg) !important;
}

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

/* Text utilities */
.text-mono {
    font-family: 'Source Code Pro', ui-monospace, monospace;
}

.text-balance {
    text-wrap: balance;
}

/* Truncate with ellipsis */
.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Line clamp */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Backdrop blur */
.backdrop-blur {
    backdrop-filter: blur(8px);
}

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

::-webkit-scrollbar-track {
    background: var(--color-bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border-light);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

/* Selection */
::selection {
    background-color: var(--color-primary);
    color: white;
}

/* Empty state */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
    text-align: center;
    color: var(--color-text-muted);
}

.empty-state-icon {
    width: 3rem;
    height: 3rem;
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

.empty-state-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.empty-state-description {
    font-size: 0.875rem;
    max-width: 20rem;
}

/* ===========================================
   PAGINATION COMPONENTS
   =========================================== */

.pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.pagination-btn:hover {
    background-color: var(--color-bg-light);
    color: var(--color-text-primary);
    border-color: var(--color-border-light);
}

.pagination-btn-active {
    background-color: var(--color-info-bg);
    color: var(--color-info);
    border-color: var(--color-info);
}

.pagination-ellipsis {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2rem;
    padding: 0.375rem 0.5rem;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

@media (max-width: 640px) {
    .pagination-btn {
        min-width: 2.25rem;
        padding: 0.5rem;
        font-size: 0.75rem;
    }
}

/* ===========================================
   RESPONSIVE CONTAINER UTILITIES
   =========================================== */

.container-responsive {
    width: 100%;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

@media (min-width: 640px) {
    .container-responsive {
        padding-left: var(--space-6);
        padding-right: var(--space-6);
    }
}

@media (min-width: 1024px) {
    .container-responsive {
        padding-left: var(--space-8);
        padding-right: var(--space-8);
    }
}

@media (min-width: 1536px) {
    .container-responsive {
        max-width: 1536px;
    }
}

/* ===========================================
   RESPONSIVE GRID UTILITIES
   =========================================== */

.grid-responsive-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .grid-responsive-2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

.grid-responsive-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .grid-responsive-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid-responsive-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

.grid-responsive-4 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .grid-responsive-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid-responsive-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===========================================
   RESPONSIVE TABLE UTILITIES
   =========================================== */

/* Horizontal scroll wrapper for tables on mobile */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-left: calc(-1 * var(--space-4));
    margin-right: calc(-1 * var(--space-4));
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

@media (min-width: 640px) {
    .table-responsive {
        margin-left: 0;
        margin-right: 0;
        padding-left: 0;
        padding-right: 0;
    }
}

/* Card-based table view for very small screens */
@media (max-width: 640px) {
    .table-cards-mobile thead {
        display: none;
    }

    .table-cards-mobile tbody tr {
        display: block;
        margin-bottom: var(--space-4);
        padding: var(--space-4);
        background-color: var(--color-bg-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-lg);
    }

    .table-cards-mobile tbody td {
        display: flex;
        justify-content: space-between;
        padding: var(--space-2) 0 !important;
        border-bottom: 1px solid var(--color-border) !important;
    }

    .table-cards-mobile tbody td:last-child {
        border-bottom: none !important;
    }

    .table-cards-mobile tbody td::before {
        content: attr(data-label);
        font-weight: 500;
        color: var(--color-text-secondary);
        margin-right: var(--space-4);
    }
}

/* ===========================================
   RESPONSIVE SPACING UTILITIES
   =========================================== */

.py-responsive {
    padding-top: var(--space-4);
    padding-bottom: var(--space-4);
}

@media (min-width: 640px) {
    .py-responsive {
        padding-top: var(--space-6);
        padding-bottom: var(--space-6);
    }
}

.px-responsive {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

@media (min-width: 640px) {
    .px-responsive {
        padding-left: var(--space-6);
        padding-right: var(--space-6);
    }
}

@media (min-width: 1024px) {
    .px-responsive {
        padding-left: var(--space-8);
        padding-right: var(--space-8);
    }
}

/* ===========================================
   FLEX RESPONSIVE UTILITIES
   =========================================== */

.flex-col-sm-row {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .flex-col-sm-row {
        flex-direction: row;
    }
}

/* Stack on mobile, side by side on larger screens */
.stack-mobile {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

@media (min-width: 640px) {
    .stack-mobile {
        flex-direction: row;
        align-items: center;
    }
}