:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --card-bg: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --hover-bg: #f8fafc;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --glass-bg: rgba(255, 255, 255, 0.95);
    --glass-border: rgba(255, 255, 255, 0.18);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    min-height: 100vh;
    padding: 20px;
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 48px;
    box-shadow: var(--shadow-2xl), 0 0 0 1px var(--glass-border);
    animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

h1 {
    color: var(--text-primary);
    margin-bottom: 16px;
    text-align: center;
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
    line-height: 1.2;
    position: relative;
    padding-bottom: 20px;
}

h1::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

/* Navigation Tabs */
.nav-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
    background: rgba(255, 255, 255, 0.6);
    padding: 8px;
    border-radius: 16px;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.nav-tab {
    flex: 1;
    padding: 16px 24px;
    border: none;
    border-radius: 12px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: inherit;
}

.nav-tab:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.nav-tab.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.nav-tab span {
    font-size: 20px;
}

/* Page Container */
.page {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Form Row Layout */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

/* Filters Container */
.filters-container {
    background: linear-gradient(135deg, rgba(248, 250, 252, 0.9) 0%, rgba(241, 245, 249, 0.9) 100%);
    backdrop-filter: blur(10px);
    padding: 28px;
    border-radius: 20px;
    margin-bottom: 32px;
    border: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.6);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.filters-container h3 {
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.3px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-group input {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: white;
    color: var(--text-primary);
    font-family: inherit;
}

.filter-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
}

.btn-clear-filters {
    background: linear-gradient(135deg, #64748b, #475569);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
    width: 100%;
    font-family: inherit;
}

.btn-clear-filters:hover {
    background: linear-gradient(135deg, #475569, #64748b);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.filter-summary {
    padding-top: 16px;
    border-top: 2px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.filter-summary span {
    color: var(--primary-color);
    font-weight: 600;
}

h2 {
    color: var(--text-primary);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: -0.3px;
}

h2::before {
    content: '';
    width: 5px;
    height: 28px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.form-container,
.import-container {
    background: linear-gradient(135deg, rgba(248, 250, 252, 0.9) 0%, rgba(241, 245, 249, 0.9) 100%);
    backdrop-filter: blur(10px);
    padding: 36px;
    border-radius: 20px;
    margin-bottom: 32px;
    border: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.6);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.form-container::before,
.import-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--primary-color));
    background-size: 200% 100%;
    animation: shimmer 3s linear infinite;
    opacity: 0;
    transition: opacity 0.3s;
}

.form-container:hover::before,
.import-container:hover::before {
    opacity: 1;
}

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

.form-container:hover,
.import-container:hover {
    box-shadow: var(--shadow-xl), inset 0 1px 0 rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

.form-group {
    margin-bottom: 24px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    position: relative;
    padding-left: 4px;
}

.form-group label::after {
    content: '';
    position: absolute;
    left: -4px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.3s;
}

.form-group:focus-within label::after {
    opacity: 1;
}

input[type="text"],
input[type="tel"],
input[type="email"],
select {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-primary);
    font-family: inherit;
    box-shadow: var(--shadow-sm);
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1), var(--shadow-md);
    transform: translateY(-2px);
    background: white;
}

input::placeholder {
    color: var(--text-secondary);
    opacity: 0.5;
    font-weight: 400;
}

.form-actions,
.import-actions {
    display: flex;
    gap: 14px;
    margin-top: 32px;
    flex-wrap: wrap;
}

button {
    padding: 14px 32px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
}

button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

button:hover::before {
    width: 400px;
    height: 400px;
}

button:active {
    transform: scale(0.97);
}

#submit-btn,
.btn-import-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    flex: 1;
    min-width: 160px;
}

#submit-btn:hover,
.btn-import-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

#cancel-btn,
.btn-cancel {
    background: linear-gradient(135deg, #64748b, #475569);
    color: white;
}

#cancel-btn:hover,
.btn-cancel:hover {
    background: linear-gradient(135deg, #475569, #64748b);
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.search-container {
    margin-bottom: 32px;
    position: relative;
}

#search-input {
    width: 100%;
    padding: 18px 24px 18px 56px;
    border: 2px solid var(--border-color);
    border-radius: 16px;
    font-size: 15px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
}

#search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1), var(--shadow-lg);
    transform: translateY(-2px);
    background: white;
}

.search-container::before {
    content: '🔍';
    position: absolute;
    left: 22px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px;
    opacity: 0.4;
    pointer-events: none;
    transition: opacity 0.3s;
}

.search-container:focus-within::before {
    opacity: 0.7;
}

.table-container {
    overflow-x: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(226, 232, 240, 0.8);
    background: white;
    backdrop-filter: blur(10px);
    position: relative;
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 0;
}

thead {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

thead th {
    padding: 20px 24px;
    text-align: left;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    border: none;
    position: relative;
}

thead th:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 25%;
    height: 50%;
    width: 1px;
    background: rgba(255, 255, 255, 0.2);
}

thead th:first-child {
    border-top-left-radius: 16px;
}

thead th:last-child {
    border-top-right-radius: 16px;
}

tbody tr {
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border-bottom: 1px solid var(--border-color);
    background: white;
}

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

tbody tr:hover {
    background: linear-gradient(135deg, rgba(248, 250, 252, 0.8), rgba(241, 245, 249, 0.8));
    transform: scale(1.005);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

td {
    padding: 18px 24px;
    text-align: left;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
}

td:first-child {
    font-weight: 600;
    color: var(--text-primary);
}

.action-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-edit,
.btn-delete {
    padding: 10px 20px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    min-width: 80px;
}

.btn-edit {
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
}

.btn-edit:hover {
    background: linear-gradient(135deg, #059669, var(--success-color));
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.btn-delete {
    background: linear-gradient(135deg, var(--danger-color), #dc2626);
    color: white;
}

.btn-delete:hover {
    background: linear-gradient(135deg, #dc2626, var(--danger-color));
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.message {
    padding: 18px 24px;
    margin: 0 0 28px 0;
    border-radius: 16px;
    text-align: center;
    font-weight: 600;
    animation: slideDown 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--shadow-lg);
    border-left: 5px solid;
    backdrop-filter: blur(10px);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.message.error {
    background: linear-gradient(135deg, rgba(254, 226, 226, 0.95), rgba(254, 202, 202, 0.95));
    color: #991b1b;
    border-left-color: var(--danger-color);
}

.message.success {
    background: linear-gradient(135deg, rgba(209, 250, 229, 0.95), rgba(167, 243, 208, 0.95));
    color: #065f46;
    border-left-color: var(--success-color);
}

tbody tr td[colspan] {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
    font-style: italic;
    font-size: 16px;
}

/* CSV Import Styles */
.file-upload-section {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    padding: 20px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 12px;
    border: 2px dashed var(--border-color);
    transition: all 0.3s;
}

.file-upload-section:hover {
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.8);
}

.btn-import {
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
    padding: 14px 32px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    box-shadow: var(--shadow-md);
}

.btn-import:hover {
    background: linear-gradient(135deg, #059669, var(--success-color));
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.file-name {
    color: var(--text-secondary);
    font-style: italic;
    font-weight: 500;
    font-size: 14px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 8px;
}

.mapping-section {
    margin-top: 28px;
    animation: fadeIn 0.5s ease-out;
}

.mapping-section h3 {
    color: var(--text-primary);
    margin-bottom: 24px;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.mapping-field {
    margin-bottom: 24px;
}

.mapping-field label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.mapping-field .required {
    color: var(--danger-color);
    font-weight: 700;
    margin-left: 4px;
}

.mapping-select {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    box-shadow: var(--shadow-sm);
}

.mapping-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1), var(--shadow-md);
    transform: translateY(-2px);
    background: white;
}

.preview-section {
    margin-top: 32px;
    margin-bottom: 28px;
    background: white;
    padding: 24px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    animation: fadeIn 0.5s ease-out;
}

.preview-section h4 {
    color: var(--text-primary);
    margin-bottom: 18px;
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.2px;
}

.preview-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.preview-table th {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 14px 18px;
    text-align: left;
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.preview-table td {
    padding: 12px 18px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 14px;
}

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

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

.btn-import-primary:disabled {
    background: linear-gradient(135deg, #94a3b8, #64748b);
    cursor: not-allowed;
    transform: none;
    opacity: 0.7;
}

.import-result {
    margin-top: 28px;
    padding: 24px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    border-left: 5px solid;
    animation: slideDown 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    backdrop-filter: blur(10px);
}

.import-result.success {
    background: linear-gradient(135deg, rgba(209, 250, 229, 0.95), rgba(167, 243, 208, 0.95));
    border-left-color: var(--success-color);
    color: #065f46;
}

.import-result.error {
    background: linear-gradient(135deg, rgba(254, 226, 226, 0.95), rgba(254, 202, 202, 0.95));
    border-left-color: var(--danger-color);
    color: #991b1b;
}

.import-result h4 {
    margin-bottom: 14px;
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: -0.3px;
}

.import-result h5 {
    margin-top: 20px;
    margin-bottom: 14px;
    font-size: 1.05rem;
    font-weight: 700;
}

.import-result p {
    margin-bottom: 10px;
    font-weight: 600;
    font-size: 15px;
}

.error-details {
    margin-top: 20px;
    padding-top: 18px;
    border-top: 2px solid rgba(0, 0, 0, 0.1);
}

.error-list-container {
    max-height: 500px;
    overflow-y: auto;
    margin-top: 12px;
    padding-right: 8px;
}

.error-list-container::-webkit-scrollbar {
    width: 8px;
}

.error-list-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 10px;
}

.error-list-container::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

.error-list-container::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

.error-details ul {
    list-style: none;
    padding-left: 0;
    margin-top: 12px;
}

.error-details li {
    padding: 10px 12px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1.5;
    transition: background 0.2s;
}

.error-details li:hover {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 6px;
}

.error-details li:last-child {
    border-bottom: none;
}

.error-number {
    font-weight: 700;
    margin-right: 8px;
    color: rgba(0, 0, 0, 0.6);
    min-width: 30px;
    display: inline-block;
}

/* Loading state */
.loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid var(--primary-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Scrollbar styling */
.table-container::-webkit-scrollbar {
    height: 10px;
}

.table-container::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 10px;
}

.table-container::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.1);
}

.table-container::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 32px;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    .filters-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    body {
        padding: 12px;
    }
    
    .container {
        padding: 24px;
        border-radius: 20px;
    }
    
    h1 {
        font-size: 2rem;
        padding-bottom: 16px;
    }
    
    h1::after {
        width: 60px;
    }
    
    .nav-tabs {
        flex-direction: column;
        gap: 8px;
    }
    
    .nav-tab {
        width: 100%;
    }
    
    .form-container,
    .import-container,
    .filters-container {
        padding: 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .filters-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .form-actions,
    .import-actions {
        flex-direction: column;
    }
    
    #submit-btn,
    #cancel-btn,
    .btn-import-primary,
    .btn-cancel,
    .btn-clear-filters {
        width: 100%;
    }
    
    table {
        font-size: 13px;
    }
    
    th, td {
        padding: 14px 16px;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .btn-edit,
    .btn-delete {
        width: 100%;
    }
}

/* Logout Button */
.btn-logout {
    background: linear-gradient(135deg, #64748b, #475569);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-md);
    font-family: inherit;
    white-space: nowrap;
}

.btn-logout:hover {
    background: linear-gradient(135deg, #475569, #64748b);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .btn-logout {
        padding: 10px 16px;
        font-size: 12px;
    }
    
    h1 {
        font-size: 1.5rem !important;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}