/*
 * Perlo Medical - Home Health Platform
 * Modern Healthcare SaaS Design with Sidebar Navigation
 */

/* ============================================
   CSS Variables / Design Tokens
   ============================================ */
:root {
    /* Brand Colors */
    --purple-900: #581C87;
    --purple-800: #6B21A8;
    --purple-700: #7C3AED;
    --purple-600: #9333EA;
    --purple-500: #A855F7;
    --purple-400: #C084FC;
    --purple-300: #D8B4FE;
    --purple-200: #E9D5FF;
    --purple-100: #F3E8FF;
    --purple-50: #FAF5FF;

    /* Neutral Colors */
    --gray-900: #111827;
    --gray-800: #1F2937;
    --gray-700: #374151;
    --gray-600: #4B5563;
    --gray-500: #6B7280;
    --gray-400: #9CA3AF;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --gray-50: #F9FAFB;
    --white: #FFFFFF;

    /* Semantic Colors */
    --success: #10B981;
    --success-light: #D1FAE5;
    --warning: #F59E0B;
    --warning-light: #FEF3C7;
    --error: #EF4444;
    --error-light: #FEE2E2;
    --info: #3B82F6;
    --info-light: #DBEAFE;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, 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;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;

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

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 200ms ease;
    --transition-slow: 300ms ease;

    /* Layout */
    --sidebar-width: 250px;
    --sidebar-collapsed-width: 64px;
    --topbar-height: 56px;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    min-height: 100vh;
}

a {
    color: var(--purple-700);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--purple-800);
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--gray-900);
}

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

.text-muted { color: var(--gray-500); }
.text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }
.text-danger { color: var(--error); }

/* ============================================
   Sidebar Layout
   ============================================ */
.has-sidebar {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Overlay (Mobile) */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity var(--transition);
}

.sidebar-mobile-open .sidebar-overlay {
    display: block;
    opacity: 1;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    z-index: 999;
    transition: width var(--transition), transform var(--transition);
}

/* Sidebar Header / Logo */
.sidebar-header {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--gray-100);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    text-decoration: none;
    color: inherit;
}

.sidebar-logo-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
}

.sidebar-logo-icon svg {
    width: 32px;
    height: 32px;
}

.sidebar-logo-text {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-logo-name {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--gray-900);
    white-space: nowrap;
}

.sidebar-logo-subtitle {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
    white-space: nowrap;
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-4) 0;
}

.sidebar-section {
    margin-bottom: var(--spacing-4);
}

.sidebar-section-title {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-400);
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-2) var(--spacing-4);
    margin: 2px var(--spacing-2);
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
}

.sidebar-link:hover {
    background: var(--purple-50);
    color: var(--purple-700);
}

.sidebar-link.active {
    background: var(--purple-600);
    color: var(--white);
}

.sidebar-link.active .sidebar-icon {
    color: var(--white);
}

.sidebar-link.active:hover {
    background: var(--purple-700);
}

/* Locked sidebar items */
.sidebar-link.locked {
    color: var(--gray-400);
    cursor: not-allowed;
    pointer-events: none;
}

.sidebar-link.locked .sidebar-icon {
    color: var(--gray-300);
}

.sidebar-lock-icon {
    width: 14px;
    height: 14px;
    margin-left: auto;
    color: var(--gray-400);
}

.sidebar-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--gray-500);
    transition: color var(--transition-fast);
}

.sidebar-link:hover .sidebar-icon {
    color: var(--purple-600);
}

.sidebar-link-text {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-badge {
    background: var(--purple-600);
    color: var(--white);
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: var(--radius-full);
    min-width: 18px;
    text-align: center;
}

.sidebar-link.active .sidebar-badge {
    background: var(--white);
    color: var(--purple-600);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--spacing-3) var(--spacing-4);
    border-top: 1px solid var(--gray-100);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.sidebar-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2);
    border-radius: var(--radius);
    font-size: var(--font-size-xs);
    text-decoration: none;
    transition: background var(--transition-fast);
}

.sidebar-status:hover {
    background: var(--gray-100);
}

.sidebar-status .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.sidebar-status.status-running .status-dot {
    background: var(--success);
    animation: pulse 2s infinite;
}

.sidebar-status.status-stopped .status-dot {
    background: var(--gray-400);
}

.sidebar-status.status-warning .status-dot {
    background: var(--warning);
}

.sidebar-status-text {
    color: var(--gray-600);
    white-space: nowrap;
    overflow: hidden;
}

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

.sidebar-hipaa {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2);
    background: var(--success-light);
    border-radius: var(--radius);
    color: #065F46;
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.sidebar-hipaa svg {
    flex-shrink: 0;
}

.sidebar-hipaa-text {
    white-space: nowrap;
    overflow: hidden;
}

/* Sidebar User */
.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2);
    background: var(--gray-50);
    border-radius: var(--radius);
}

.sidebar-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--purple-100);
    color: var(--purple-700);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.sidebar-user-info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.sidebar-user-name {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-800);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-role {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

.sidebar-logout {
    padding: var(--spacing-2);
    color: var(--gray-400);
    border-radius: var(--radius);
    transition: all var(--transition-fast);
}

.sidebar-logout:hover {
    background: var(--error-light);
    color: var(--error);
}

.sidebar-logout svg {
    width: 18px;
    height: 18px;
}

/* Sidebar Toggle Button */
.sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: var(--spacing-2);
    background: var(--gray-100);
    border: none;
    border-radius: var(--radius);
    color: var(--gray-500);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    background: var(--gray-200);
    color: var(--gray-700);
}

.sidebar-toggle svg {
    width: 18px;
    height: 18px;
}

.sidebar-toggle .toggle-expand {
    display: none;
}

/* ============================================
   Sidebar Collapsed State
   ============================================ */
.sidebar-collapsed .sidebar {
    width: var(--sidebar-collapsed-width);
}

.sidebar-collapsed .sidebar-logo-text,
.sidebar-collapsed .sidebar-section-title,
.sidebar-collapsed .sidebar-link-text,
.sidebar-collapsed .sidebar-badge,
.sidebar-collapsed .sidebar-lock-icon,
.sidebar-collapsed .sidebar-status-text,
.sidebar-collapsed .sidebar-hipaa-text,
.sidebar-collapsed .sidebar-user-info {
    display: none;
}

.sidebar-collapsed .sidebar-link {
    justify-content: center;
    padding: var(--spacing-3);
    margin: 2px var(--spacing-1);
}

.sidebar-collapsed .sidebar-link .sidebar-icon {
    margin: 0;
}

.sidebar-collapsed .sidebar-header {
    padding: var(--spacing-3);
}

.sidebar-collapsed .sidebar-logo {
    justify-content: center;
}

.sidebar-collapsed .sidebar-footer {
    padding: var(--spacing-2);
    align-items: center;
}

.sidebar-collapsed .sidebar-status,
.sidebar-collapsed .sidebar-hipaa,
.sidebar-collapsed .sidebar-user {
    justify-content: center;
    padding: var(--spacing-2);
}

.sidebar-collapsed .sidebar-user-avatar {
    width: 28px;
    height: 28px;
    font-size: var(--font-size-xs);
}

.sidebar-collapsed .sidebar-logout {
    display: none;
}

.sidebar-collapsed .sidebar-toggle .toggle-collapse {
    display: none;
}

.sidebar-collapsed .sidebar-toggle .toggle-expand {
    display: block;
}

.sidebar-collapsed .topbar {
    left: var(--sidebar-collapsed-width);
}

.sidebar-collapsed .main-content {
    margin-left: var(--sidebar-collapsed-width);
    width: calc(100% - var(--sidebar-collapsed-width));
}

/* Tooltips for collapsed state */
.sidebar-collapsed .sidebar-link {
    position: relative;
}

.sidebar-collapsed .sidebar-link::after {
    content: attr(title);
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-left: 8px;
    padding: 4px 8px;
    background: var(--gray-900);
    color: var(--white);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    pointer-events: none;
    z-index: 1000;
}

.sidebar-collapsed .sidebar-link:hover::after {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   Top Header Bar
   ============================================ */
.topbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: var(--topbar-height);
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    z-index: 100;
    transition: left var(--transition);
}

.topbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--spacing-6);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.topbar-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    border-radius: var(--radius);
    color: var(--gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.topbar-menu-btn:hover {
    background: var(--gray-100);
    color: var(--gray-800);
}

.topbar-menu-btn svg {
    width: 24px;
    height: 24px;
}

.topbar-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.topbar-timer {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    padding: var(--spacing-1) var(--spacing-2);
    background: var(--gray-100);
    border-radius: var(--radius);
    font-size: var(--font-size-xs);
    color: var(--gray-600);
}

.topbar-timer svg {
    width: 14px;
    height: 14px;
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.topbar-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--purple-100);
    color: var(--purple-700);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.topbar-user-name {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-700);
}

.topbar-logout {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius);
    color: var(--gray-500);
    transition: all var(--transition-fast);
}

.topbar-logout:hover {
    background: var(--error-light);
    color: var(--error);
}

.topbar-logout svg {
    width: 18px;
    height: 18px;
}

/* ============================================
   Main Content Area
   ============================================ */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    margin-top: var(--topbar-height);
    min-height: calc(100vh - var(--topbar-height));
    padding: var(--spacing-6);
    transition: margin-left var(--transition);
    width: calc(100% - var(--sidebar-width));
}

.container {
    width: 100%;
    max-width: 100%;
}

/* ============================================
   Cards
   ============================================ */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: var(--spacing-6);
}

.card-body {
    padding: var(--spacing-6);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4) var(--spacing-6);
    border-bottom: 1px solid var(--gray-100);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.card-title svg {
    color: var(--purple-600);
}

.card-highlight {
    border-left: 4px solid var(--purple-500);
}

/* Stat Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-5);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--purple-500);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-4);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-card.stat-success { border-left-color: var(--success); }
.stat-card.stat-warning { border-left-color: var(--warning); }
.stat-card.stat-danger { border-left-color: var(--error); }

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--purple-100);
    color: var(--purple-600);
}

.stat-card.stat-success .stat-icon { background: var(--success-light); color: var(--success); }
.stat-card.stat-warning .stat-icon { background: var(--warning-light); color: var(--warning); }
.stat-card.stat-danger .stat-icon { background: var(--error-light); color: var(--error); }

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin-top: var(--spacing-1);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn svg {
    width: 16px;
    height: 16px;
}

.btn-primary {
    background: var(--purple-600);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--purple-700);
    color: var(--white);
}

.btn-secondary {
    background: var(--white);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
    color: var(--gray-800);
}

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

.btn-success:hover {
    background: #059669;
    color: var(--white);
}

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

.btn-danger:hover {
    background: #DC2626;
    color: var(--white);
}

.btn-warning {
    background: var(--warning);
    color: var(--white);
}

.btn-warning:hover {
    background: #D97706;
    color: var(--white);
}

.btn-sm {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-4);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
}

.form-input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: var(--spacing-3);
    font-size: var(--font-size-base);
    font-family: inherit;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    background: var(--white);
    transition: all var(--transition-fast);
}

.form-input:focus,
input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--purple-500);
    box-shadow: 0 0 0 3px var(--purple-100);
}

.input-with-icon {
    position: relative;
}

.input-with-icon svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    width: 18px;
    height: 18px;
    pointer-events: none;
}

.input-with-icon input {
    padding-left: 44px;
}

/* ============================================
   Tables
   ============================================ */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    text-align: left;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.table td {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--gray-100);
    font-size: var(--font-size-sm);
}

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

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

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

.table-link {
    color: var(--gray-800);
    text-decoration: none;
    font-weight: 500;
}

.table-link:hover {
    color: var(--purple-700);
}

/* ============================================
   Badges
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
}

.badge-success, .decision-accept { background: #D1FAE5; color: #065F46; }
.badge-warning, .decision-review { background: #FEF3C7; color: #92400E; }
.badge-error, .decision-decline { background: #FEE2E2; color: #991B1B; }
.badge-info { background: #DBEAFE; color: #1E40AF; }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }
.badge-purple { background: var(--purple-100); color: var(--purple-700); }

/* ============================================
   Flash Messages
   ============================================ */
.flash-messages {
    margin-bottom: var(--spacing-4);
}

.flash {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-sm);
}

.flash svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.flash-success {
    background: var(--success-light);
    color: #065F46;
}

.flash-error {
    background: var(--error-light);
    color: #991B1B;
}

.flash-warning {
    background: var(--warning-light);
    color: #92400E;
}

.flash-info {
    background: var(--info-light);
    color: #1E40AF;
}

/* ============================================
   Page Header
   ============================================ */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-6);
}

.page-header-content {
    flex: 1;
}

.page-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

.page-subtitle {
    color: var(--gray-500);
    margin-top: var(--spacing-1);
}

.page-header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.page-header-centered {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

/* ============================================
   Alerts Grid
   ============================================ */
.alerts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.alert-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.alert-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.alert-card-header svg {
    width: 20px;
    height: 20px;
}

.alert-count {
    margin-left: auto;
    background: rgba(0, 0, 0, 0.1);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
}

.alert-card-info .alert-card-header { background: var(--info-light); color: #1E40AF; }
.alert-card-warning .alert-card-header { background: var(--warning-light); color: #92400E; }
.alert-card-danger .alert-card-header { background: var(--error-light); color: #991B1B; }

.alert-card-body {
    padding: var(--spacing-2);
}

.alert-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-3);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: background var(--transition-fast);
}

.alert-item:hover {
    background: var(--gray-50);
}

.alert-item-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.alert-item-content strong {
    font-size: var(--font-size-sm);
    color: var(--gray-800);
}

.alert-item-meta {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

/* ============================================
   Data Grid
   ============================================ */
.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-4);
}

.data-item {
    padding: var(--spacing-4);
    background: var(--gray-50);
    border-radius: var(--radius);
}

.data-item-success { background: var(--success-light); }
.data-item-warning { background: var(--warning-light); }
.data-item-danger { background: var(--error-light); }

.data-item-label {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-1);
}

.data-item-value {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-800);
}

/* ============================================
   Upload Zone
   ============================================ */
.upload-zone {
    border: 2px dashed var(--purple-300);
    border-radius: var(--radius-lg);
    padding: var(--spacing-10);
    text-align: center;
    background: var(--purple-50);
    transition: all var(--transition);
    cursor: pointer;
    position: relative;
}

.upload-zone input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--purple-500);
    background: var(--purple-100);
}

.upload-zone.has-files {
    border-color: var(--success);
    background: var(--success-light);
}

.upload-zone.has-files .upload-icon {
    color: var(--success);
}

.upload-zone-content {
    pointer-events: none;
}

.upload-icon {
    margin: 0 auto var(--spacing-4);
    color: var(--purple-500);
}

.upload-text {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
}

.upload-hint {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

/* ============================================
   Steps List
   ============================================ */
.steps-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-4);
}

.step-number {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--purple-600);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    flex-shrink: 0;
}

.step-content {
    display: flex;
    flex-direction: column;
    padding-top: 4px;
}

.step-content strong {
    font-size: var(--font-size-sm);
    color: var(--gray-800);
}

.step-content span {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
    text-align: center;
    padding: var(--spacing-12) var(--spacing-4);
}

.empty-state-icon {
    margin-bottom: var(--spacing-4);
    color: var(--gray-300);
}

.empty-state-icon svg {
    width: 64px;
    height: 64px;
}

.empty-state h3 {
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
}

.empty-state p {
    color: var(--gray-500);
    margin-bottom: var(--spacing-4);
}

/* ============================================
   Setup Prompt
   ============================================ */
.setup-prompt {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
}

.setup-prompt-icon {
    color: var(--purple-500);
}

.setup-prompt-icon svg {
    width: 48px;
    height: 48px;
}

.setup-prompt-content h3 {
    margin-bottom: var(--spacing-2);
}

.setup-prompt-content p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-4);
}

/* ============================================
   Modal
   ============================================ */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
}

.modal-overlay.active {
    display: flex;
}

.modal-box {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 480px;
    width: 100%;
    padding: var(--spacing-8);
}

.modal-icon {
    text-align: center;
    margin-bottom: var(--spacing-4);
}

.modal-icon.warning {
    color: var(--warning);
}

.modal-icon svg {
    width: 48px;
    height: 48px;
}

.modal-box h3 {
    text-align: center;
    margin-bottom: var(--spacing-2);
}

.modal-box p {
    text-align: center;
    color: var(--gray-600);
}

.modal-box .countdown {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--warning);
    text-align: center;
    margin: var(--spacing-4) 0;
}

.modal-actions {
    display: flex;
    gap: var(--spacing-3);
    justify-content: center;
    margin-top: var(--spacing-6);
}

.session-timeout-modal .modal-box {
    border-top: 4px solid var(--warning);
}

/* ============================================
   Login Page
   ============================================ */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--purple-50) 0%, var(--white) 100%);
    padding: var(--spacing-4);
}

.login-page .sidebar,
.login-page .topbar {
    display: none;
}

.login-page .main-content {
    margin: 0;
    padding: 0;
}

.login-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-6);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-8);
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.login-header h1 {
    font-size: var(--font-size-2xl);
    color: var(--gray-900);
    margin-bottom: var(--spacing-1);
}

.login-subtitle {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
}

.login-form {
    margin-bottom: var(--spacing-6);
}

.remember-row {
    margin-bottom: var(--spacing-4);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--purple-600);
}

.login-footer {
    text-align: center;
    padding-top: var(--spacing-6);
    border-top: 1px solid var(--gray-100);
}

.login-footer p {
    font-size: var(--font-size-xs);
    color: var(--gray-400);
}

.login-compliance {
    text-align: center;
}

.login-compliance .hipaa-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    background: var(--success-light);
    color: #065F46;
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius);
    font-size: var(--font-size-xs);
    font-weight: 500;
    margin-bottom: var(--spacing-3);
}

.login-compliance .security-notice {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
    max-width: 320px;
    line-height: 1.5;
}

.login-brand-footer {
    font-size: var(--font-size-sm);
    color: var(--gray-400);
}

.login-brand-footer strong {
    color: var(--purple-600);
}

/* ============================================
   Auto Refresh Badge
   ============================================ */
.auto-refresh-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    background: var(--gray-100);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
}

.auto-refresh-badge svg {
    width: 14px;
    height: 14px;
}

/* ============================================
   Upload Page Container
   ============================================ */
.upload-page {
    max-width: 600px;
    margin: 0 auto;
}

.upload-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.upload-footer {
    text-align: center;
}

/* ============================================
   Responsive - Tablet
   ============================================ */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================
   Responsive - Mobile
   ============================================ */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar-mobile-open .sidebar {
        transform: translateX(0);
    }

    .topbar {
        left: 0;
    }

    .topbar-menu-btn {
        display: flex;
    }

    .topbar-user-name {
        display: none;
    }

    .main-content {
        margin-left: 0;
        width: 100%;
    }

    .sidebar-collapsed .topbar {
        left: 0;
    }

    .sidebar-collapsed .main-content {
        margin-left: 0;
        width: 100%;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .alerts-grid {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-4);
    }

    .page-header-actions {
        width: 100%;
    }

    .page-header-actions .btn {
        flex: 1;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .main-content {
        padding: var(--spacing-4);
    }

    .card-body {
        padding: var(--spacing-4);
    }
}

/* ============================================
   Utilities
   ============================================ */
.hidden { display: none !important; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--spacing-2); }
.gap-4 { gap: var(--spacing-4); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.text-center { text-align: center; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }

/* Spinner */
.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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