/* ========================================
   PCR Lab Notebook - Main Stylesheet
   Modern, Professional Design System
   ======================================== */

/* ========================================
   CSS Custom Properties (Design Tokens)
   ======================================== */
:root {
    /* Colors - Primary Palette */
    --color-primary: #4f46e5;
    --color-primary-dark: #4338ca;
    --color-primary-light: #6366f1;
    --color-primary-bg: #e0e7ff;
    --color-primary-bg-light: #eef2ff;

    /* Colors - Neutrals */
    --color-gray-50: #f9fafb;
    --color-gray-100: #f4f5fb;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    --color-surface: #ffffff;

    /* Colors - Semantic */
    --color-success: #166534;
    --color-success-bg: #dcfce7;
    --color-warning: #92400e;
    --color-warning-bg: #fef3c7;
    --color-error: #b91c1c;
    --color-error-bg: #fee2e2;
    --color-info: #1e40af;
    --color-info-bg: #dbeafe;

    /* Typography */
    --font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-size-xs: 0.78rem;
    --font-size-sm: 0.85rem;
    --font-size-base: 0.95rem;
    --font-size-lg: 1.05rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.6rem;
    --font-size-3xl: 2.6rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.6rem;
    --radius-md: 0.9rem;
    --radius-lg: 1.25rem;
    --radius-full: 999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.1);
    --shadow-xl: 0 20px 40px rgba(15, 23, 42, 0.12);
    --shadow-primary: 0 10px 25px rgba(79, 70, 229, 0.2);
    --shadow-primary-hover: 0 15px 35px rgba(79, 70, 229, 0.3);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;
}

/* Dark Mode Overrides - Premium "Deep Sea/Slate" Palette */
.dark {
    --color-gray-50: #0f172a;
    --color-gray-100: #10192d;
    --color-gray-200: #1e293b;
    --color-gray-300: #334155;
    --color-gray-400: #475569;
    --color-gray-500: #64748b;
    --color-gray-600: #94a3b8;
    --color-gray-700: #cbd5e1;
    --color-gray-800: #e2e8f0;
    --color-gray-900: #f8fafc;
    --color-surface: #1e293b;

    --color-primary-bg: #1e1b4b;
    --color-primary-bg-light: #232252;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.7);
}

/* ========================================
   Base Styles
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-gray-100) 50%, var(--color-gray-50) 100%);
    color: var(--color-gray-900);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.6;
}

/* ========================================
   Navigation Bar
   ======================================== */
.navbar {
    background: var(--color-surface);
    padding: 0.85rem 2.5rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: inherit;
    transition: transform var(--transition-base);
}

.navbar-brand:hover {
    transform: translateY(-1px);
}

.brand-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.2rem;
}

.navbar h1,
.navbar h2 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-gray-900);
    margin: 0;
}

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

.navbar nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.navbar nav a {
    text-decoration: none;
    color: var(--color-gray-600);
    font-weight: 500;
    font-size: var(--font-size-base);
    transition: color var(--transition-base), transform var(--transition-fast);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    display: inline-block;
}

.navbar nav a:hover {
    color: var(--color-primary);
    transform: translateY(-1px);
    background: var(--color-primary-bg-light);
}

/* Dropdown Support */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--color-surface);
    min-width: 180px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    padding: 0.5rem 0;
    z-index: 1001;
    top: 100%;
    left: 0;
    border: 1px solid var(--color-gray-200);
    flex-direction: column;
}

.dropdown:hover .dropdown-content {
    display: flex;
    animation: fadeIn 0.15s ease;
}

.dropdown-content a {
    color: var(--color-gray-700);
    padding: 0.75rem 1rem;
    text-decoration: none;
    display: block !important;
    font-size: var(--font-size-sm);
    margin: 0;
    border-radius: 0;
    width: 100% !important;
    float: none !important;
    clear: both !important;
}

.dropdown-content a:hover {
    background-color: var(--color-gray-50);
    color: var(--color-primary);
    transform: none;
}

.dropdown-item-active {
    font-weight: bold;
    color: var(--color-primary) !important;
    background: var(--color-gray-50);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.user-info {
    color: var(--color-gray-600);
    font-weight: 500;
    font-size: var(--font-size-base);
}

/* Logout form in navbar */
.logout-form {
    display: inline;
    margin: 0;
}

.logout-btn {
    background: none;
    border: none;
    color: var(--color-gray-600);
    font-weight: 500;
    font-size: var(--font-size-base);
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition-base), background var(--transition-base), transform var(--transition-fast);
    font-family: var(--font-family);
}

.logout-btn:hover {
    color: var(--color-primary);
    background: var(--color-primary-bg-light);
    transform: translateY(-1px);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    padding: 0.7rem 1.6rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    transition: all var(--transition-base);
    white-space: nowrap;
    font-family: var(--font-family);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: #ffffff;
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary-hover);
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-gray-900);
    border-color: var(--color-gray-200);
}

.btn-secondary:hover {
    border-color: #cbd5f5;
    background: var(--color-gray-50);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--color-gray-600);
}

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

.btn-sm {
    padding: 0.55rem 1.1rem;
    font-size: var(--font-size-sm);
}

.btn-group {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ========================================
   Forms
   ======================================== */
form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

form p {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

label {
    color: var(--color-gray-600);
    font-weight: 500;
    font-size: var(--font-size-base);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
textarea,
select {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-gray-300);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px var(--color-primary);
}

textarea {
    resize: vertical;
    min-height: 100px;
}

.form-error {
    color: var(--color-error);
    font-size: var(--font-size-sm);
}

.form-help {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

/* ========================================
   Cards
   ======================================== */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 1.75rem 1.8rem;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-gray-200);
}

.stat-card {
    background: var(--color-surface);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    color: var(--color-gray-600);
    margin-top: 0.35rem;
    font-size: var(--font-size-base);
}

/* ========================================
   Tables
   ======================================== */
.table-container {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--color-gray-100);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-base);
}

th,
td {
    padding: 1rem 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--color-gray-200);
}

th {
    background: var(--color-primary);
    color: var(--color-gray-50);
    font-weight: 600;
}

tr:hover td {
    background: var(--color-gray-50);
}

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

.table-empty {
    text-align: center;
    padding: 2.2rem 1rem;
    color: var(--color-gray-500);
}

.table-empty a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

.table-empty a:hover {
    text-decoration: underline;
}

/* ========================================
   Badges
   ======================================== */
.badge {
    padding: 0.25rem 0.7rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    display: inline-block;
}

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

.badge-pending {
    background: var(--color-gray-200);
    color: var(--color-gray-700);
}

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

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

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

/* ========================================
   Layout
   ======================================== */
.container {
    max-width: 1200px;
    margin: 2.5rem auto;
    padding: 0 2rem;
}

.container-full {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem 4rem;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: 1.8rem;
    flex-wrap: wrap;
}

.page-header h1 {
    font-size: 1.8rem;
    letter-spacing: -0.02em;
    margin: 0;
}

.page-header-sub {
    font-size: var(--font-size-base);
    color: var(--color-gray-500);
    margin-top: 0.25rem;
}

/* ========================================
   Grid Systems
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: var(--spacing-md);
}

.feature {
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    padding: 1rem;
    border: 1px solid var(--color-gray-200);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.feature-header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.4rem;
}

.feature-icon {
    width: 2rem;
    height: 2rem;
    border-radius: 0.65rem;
    background: var(--color-primary-bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.feature h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-gray-900);
    margin: 0;
}

.feature p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    line-height: 1.35;
    margin: 0;
}

/* ========================================
   Messages & Alerts
   ======================================== */
.messages {
    max-width: 1200px;
    margin: 1rem auto;
    padding: 0 2rem;
}

.message {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: var(--font-size-base);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-success {
    background: var(--color-success-bg);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.message-error {
    background: var(--color-error-bg);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.message-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning);
    border: 1px solid var(--color-warning);
}

.message-info {
    background: var(--color-info-bg);
    color: var(--color-info);
    border: 1px solid var(--color-info);
}

/* ========================================
   Utilities
   ======================================== */
.text-center {
    text-align: center;
}

.text-muted {
    color: var(--color-gray-500);
}

.text-primary {
    color: var(--color-primary);
}

.text-error {
    color: var(--color-error);
}

.mt-1 {
    margin-top: var(--spacing-sm);
}

.mt-2 {
    margin-top: var(--spacing-md);
}

.mt-3 {
    margin-top: var(--spacing-lg);
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

.mb-3 {
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 900px) {
    .navbar {
        flex-direction: column;
        gap: var(--spacing-md);
        padding: 1rem 1.5rem;
    }

    .navbar nav {
        flex-wrap: wrap;
        justify-content: center;
    }

    .container {
        padding: 0 1.5rem;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 640px) {

    .stats-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }

    .navbar h1,
    .navbar h2 {
        font-size: var(--font-size-lg);
    }

    .page-header h1 {
        font-size: 1.5rem;
    }
}

/* ========================================
   Custom Modals
   ======================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--color-surface);
    padding: 2rem;
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-gray-200);
}

/* ========================================
   Auth & Hero Components
   ======================================== */
.auth-container {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.auth-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    max-width: 480px;
    width: 100%;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-gray-200);
}

.auth-header {
    margin-bottom: 2rem;
}

.auth-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    background: var(--color-primary-bg);
    color: var(--color-primary);
    font-size: var(--font-size-xs);
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.auth-title {
    font-size: var(--font-size-2xl);
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
    font-weight: 700;
}

.auth-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-gray-500);
    line-height: 1.5;
}

.auth-footer {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-gray-100);
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    text-align: center;
}

.auth-footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Hero Section */
.hero {
    max-width: 1100px;
    width: 100%;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
    margin: 0 auto;
}

.hero-main-title {
    font-size: var(--font-size-3xl);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--color-gray-900);
    letter-spacing: -0.04em;
    font-weight: 800;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-side {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-gray-200);
}

.hero-side-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.hero-side-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: 2rem;
}

.hero-highlight {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-full);
    background: var(--color-primary-bg);
    color: var(--color-primary);
    font-size: var(--font-size-xs);
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}


.modal-header h3 {
    margin: 0 0 1rem 0;
    color: var(--color-gray-900);
}

.modal-body {
    margin-bottom: 2rem;
    color: var(--color-gray-600);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   User Profile Dropdown
   ======================================== */
.user-profile-dropdown {
    position: relative;
    display: inline-block;
}

.user-profile-btn {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 0.75rem 0.4rem 0.4rem;
    background: var(--color-surface);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
    color: var(--color-gray-700);
    font-weight: 500;
    font-size: var(--font-size-base);
    flex-wrap: nowrap;
    white-space: nowrap;
}

.user-profile-btn:hover {
    background: var(--color-gray-50);
    border-color: var(--color-primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-primary-light);
}

.user-avatar-placeholder {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

.user-name {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dropdown-arrow {
    font-size: 0.75rem;
    transition: transform var(--transition-base);
}

.user-profile-btn:hover .dropdown-arrow {
    transform: translateY(2px);
}

.user-dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 0.5rem);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-gray-200);
    min-width: 200px;
    padding: 0.5rem 0;
    z-index: 1001;
    animation: fadeIn 0.2s ease;
}

.user-dropdown-menu.show {
    display: block;
}

.user-dropdown-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--color-gray-700);
    text-decoration: none;
    font-size: var(--font-size-base);
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: center;
    font-family: var(--font-family);
}


.user-dropdown-item:hover {
    background: var(--color-gray-50);
    color: var(--color-primary);
}

.user-dropdown-item.logout-item:hover {
    background: var(--color-error-bg);
    color: var(--color-error);
}

.dropdown-icon {
    font-size: 1.1rem;
    width: 20px;
    display: inline-block;
}

.dropdown-divider {
    height: 1px;
    background: var(--color-gray-200);
    margin: 0.5rem 0;
}

/* Autocomplete Dropdown */
.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    max-height: 250px;
    overflow-y: auto;
    z-index: 1000;
    margin-top: 0.25rem;
}

.autocomplete-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    color: var(--color-gray-700);
    font-size: var(--font-size-base);
    transition: background-color var(--transition-fast);
    border-bottom: 1px solid var(--color-gray-100);
}

.autocomplete-item:last-child {
    border-bottom: none;
}

.autocomplete-item:hover {
    background: var(--color-gray-50);
    color: var(--color-primary);
}

.autocomplete-item.no-results {
    cursor: default;
    color: var(--color-gray-500);
    font-style: italic;
}

.autocomplete-item.no-results:hover {
    background: transparent;
    color: var(--color-gray-500);
}
.user-name-text {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: inline-block;
}