/* Modern Dark Theme CSS for Vending Bot Admin */

/* CSS Variables for Dark Theme */
:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --bg-hover: #30363d;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent-primary: #58a6ff;
    --accent-secondary: #1f6feb;
    --success: #238636;
    --warning: #d29922;
    --error: #f85149;
    --border-primary: #30363d;
    --border-secondary: #21262d;
    --shadow-primary: rgba(0, 0, 0, 0.3);
    --shadow-secondary: rgba(0, 0, 0, 0.5);
    --gradient-primary: linear-gradient(135deg, #1f6feb 0%, #58a6ff 100%);
    --gradient-dark: linear-gradient(135deg, #161b22 0%, #0d1117 100%);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    overflow-x: hidden;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--border-primary);
    border-radius: 4px;
}

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

/* Header */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-primary);
    padding: 1rem 0;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    color: var(--accent-primary);
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

/* Layout with Sidebar */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-primary);
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    transition: var(--transition);
    z-index: 50;
}

.sidebar.collapsed {
    width: 60px;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar.collapsed .sidebar-header {
    padding: 1.5rem 0.75rem;
    justify-content: center;
}

.sidebar-logo {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-logo i {
    color: var(--accent-primary);
    font-size: 1.5rem;
    min-width: 24px;
}

.sidebar.collapsed .sidebar-logo-text {
    display: none;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    margin-left: auto;
}

.sidebar-toggle:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.sidebar.collapsed .sidebar-toggle {
    margin-left: 0;
}

.sidebar-nav {
    padding: 1rem 0;
}

.sidebar-section {
    margin-bottom: 1.5rem;
}

.sidebar-section-title {
    padding: 0.5rem 1.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.sidebar.collapsed .sidebar-section-title {
    display: none;
}

.sidebar-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-menu-item {
    margin: 0;
}

.sidebar-menu-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.sidebar.collapsed .sidebar-menu-link {
    padding: 0.75rem;
    justify-content: center;
}

.sidebar-menu-link:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.sidebar-menu-link.active {
    color: var(--accent-primary);
    background: rgba(88, 166, 255, 0.1);
}

.sidebar-menu-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--accent-primary);
}

.sidebar-menu-icon {
    font-size: 1.1rem;
    min-width: 20px;
    text-align: center;
}

.sidebar.collapsed .sidebar-menu-text {
    display: none;
}

.sidebar-menu-badge {
    margin-left: auto;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    background: var(--accent-primary);
    color: white;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

.sidebar.collapsed .sidebar-menu-badge {
    display: none;
}

.sidebar-user {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-primary);
    background: var(--bg-tertiary);
}

.sidebar.collapsed .sidebar-user {
    padding: 1rem 0.75rem;
    text-align: center;
}

.sidebar-user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.sidebar-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
}

.sidebar-user-details {
    flex: 1;
    min-width: 0;
}

.sidebar.collapsed .sidebar-user-details {
    display: none;
}

.sidebar-user-name {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.875rem;
    line-height: 1.2;
}

.sidebar-user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.sidebar-user-actions {
    display: flex;
    gap: 0.5rem;
}

.sidebar.collapsed .sidebar-user-actions {
    justify-content: center;
}

.sidebar-user-action {
    padding: 0.375rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.sidebar-user-action:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

/* Main Content with Sidebar */
.main-content {
    flex: 1;
    margin-left: 280px;
    transition: var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content.sidebar-collapsed {
    margin-left: 60px;
}

/* Container */
.container {
    flex: 1;
    padding: 2rem;
    max-width: none;
}

/* Card Styles */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
}

.card:hover {
    border-color: var(--accent-secondary);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-primary);
}

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

.card h2, .card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card h2 i, .card h3 i {
    color: var(--accent-primary);
}

/* Grid Layout */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

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

.btn-primary:hover {
    background: var(--accent-secondary);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(88, 166, 255, 0.3);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
}

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

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

.btn-success:hover {
    background: #2ea043;
    box-shadow: 0 4px 12px rgba(35, 134, 54, 0.3);
}

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

.btn-warning:hover {
    background: #f2cc60;
    box-shadow: 0 4px 12px rgba(210, 153, 34, 0.3);
}

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

.btn-danger:hover {
    background: #ff6b6b;
    box-shadow: 0 4px 12px rgba(248, 81, 73, 0.3);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Enhanced Form Elements */
.form-group {
    margin-bottom: 1.75rem;
    position: relative;
}

.form-label {
    display: block;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 0.025em;
    position: relative;
    transition: var(--transition);
}

.form-label::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 18px;
    background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 2px;
    opacity: 0;
    transition: var(--transition);
}

.form-group:hover .form-label::before,
.form-group:focus-within .form-label::before {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

.form-group:focus-within .form-label {
    color: var(--accent-primary);
    transform: translateX(2px);
}

.form-control, .form-input {
    width: 100%;
    padding: 1.25rem 1.5rem;
    background: linear-gradient(145deg, var(--bg-tertiary), rgba(33, 38, 45, 0.8));
    border: 2px solid var(--border-primary);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.5;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    box-shadow:
        0 2px 4px rgba(0, 0, 0, 0.1),
        inset 0 1px 2px rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    min-height: 3.5rem;
}

.form-control:hover, .form-input:hover {
    border-color: var(--accent-secondary);
    background: linear-gradient(145deg, var(--bg-secondary), rgba(22, 27, 34, 0.9));
    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.15),
        0 2px 4px rgba(88, 166, 255, 0.1),
        inset 0 1px 2px rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

.form-control:focus, .form-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: linear-gradient(145deg, var(--bg-secondary), rgba(22, 27, 34, 0.95));
    box-shadow:
        0 0 0 4px rgba(88, 166, 255, 0.15),
        0 8px 25px rgba(88, 166, 255, 0.1),
        0 4px 12px rgba(0, 0, 0, 0.2),
        inset 0 1px 2px rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.form-control::placeholder, .form-input::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
    transition: var(--transition);
    font-style: italic;
}

.form-control:focus::placeholder, .form-input:focus::placeholder {
    opacity: 0.4;
    transform: translateX(8px);
    font-style: normal;
}

/* Input Validation States */
.form-control:invalid, .form-input:invalid {
    border-color: var(--error);
    box-shadow: 0 0 0 2px rgba(248, 81, 73, 0.2);
}

.form-control:valid, .form-input:valid {
    border-color: var(--success);
}

.form-control:disabled, .form-input:disabled {
    background: var(--bg-primary);
    color: var(--text-muted);
    border-color: var(--border-secondary);
    cursor: not-allowed;
    opacity: 0.6;
    transform: none;
}

/* Unified Input Sizing */
.form-input-sm, .form-input-lg {
    /* Legacy classes - all inputs now use unified sizing */
    padding: 1.25rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    min-height: 3.5rem;
}

/* Global Select Reset - 모든 select 요소의 기본 스타일 제거 */
select {
    appearance: none !important;
    -webkit-appearance: none !important;
    -moz-appearance: none !important;
    background-image: none !important;
}

select::-ms-expand {
    display: none !important;
}

/* Enhanced Select Styles */
select.form-control, select.form-input {
    /* 배경 초기화 후 커스텀 화살표만 설정 */
    background: linear-gradient(145deg, var(--bg-tertiary), rgba(33, 38, 45, 0.8)) !important;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%23f0f6fc' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M6 8l4 4 4-4'/%3e%3c/svg%3e") !important;
    background-position: right 1.25rem center !important;
    background-repeat: no-repeat !important;
    background-size: 1rem 1rem !important;
    padding-right: 3rem !important;
    cursor: pointer;
    min-height: 3.5rem;

    /* 추가 브라우저 호환성 */
    -webkit-background-size: 1rem 1rem !important;
    -moz-background-size: 1rem 1rem !important;
}

select.form-control:focus, select.form-input:focus {
    background: linear-gradient(145deg, var(--bg-tertiary), rgba(33, 38, 45, 0.8)) !important;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2358a6ff' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M6 8l4 4 4-4'/%3e%3c/svg%3e") !important;
    background-position: right 1.25rem center !important;
    background-repeat: no-repeat !important;
    background-size: 1rem 1rem !important;
}

select.form-control:hover, select.form-input:hover {
    background: linear-gradient(145deg, var(--bg-tertiary), rgba(33, 38, 45, 0.8)) !important;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2358a6ff' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M6 8l4 4 4-4'/%3e%3c/svg%3e") !important;
    background-position: right 1.25rem center !important;
    background-repeat: no-repeat !important;
    background-size: 1rem 1rem !important;
}

/* Textarea Enhancement */
textarea.form-control, textarea.form-input {
    resize: vertical;
    min-height: 140px;
    line-height: 1.6;
    font-family: inherit;
    padding: 1.25rem 1.5rem;
    font-size: 1rem;
}

/* Input Group Styles */
.input-group {
    display: flex;
    align-items: stretch;
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.input-group .form-control,
.input-group .form-input {
    border-radius: 0;
    border-right: none;
    transform: none;
    box-shadow: none;
}

.input-group .form-control:first-child,
.input-group .form-input:first-child {
    border-top-left-radius: var(--border-radius);
    border-bottom-left-radius: var(--border-radius);
}

.input-group .btn:last-child {
    border-top-right-radius: var(--border-radius);
    border-bottom-right-radius: var(--border-radius);
    border-left: none;
    font-weight: 600;
}

.input-group .form-control:focus,
.input-group .form-input:focus {
    z-index: 2;
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.15);
}

.input-group:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(-1px);
}

/* Enhanced Radio Buttons */
input[type="radio"] {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: 0.75rem;
    appearance: none;
    border: 2px solid var(--border-primary);
    border-radius: 50%;
    background: var(--bg-tertiary);
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

input[type="radio"]:hover {
    border-color: var(--accent-secondary);
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.1);
}

input[type="radio"]:checked {
    border-color: var(--accent-primary);
    background: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.2);
}

input[type="radio"]:checked::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
}

/* Enhanced Checkboxes */
input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: 0.75rem;
    appearance: none;
    border: 2px solid var(--border-primary);
    border-radius: var(--border-radius-sm);
    background: var(--bg-tertiary);
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

input[type="checkbox"]:hover {
    border-color: var(--accent-secondary);
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.1);
}

input[type="checkbox"]:checked {
    border-color: var(--accent-primary);
    background: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.2);
}

input[type="checkbox"]:checked::before {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 0.9rem;
    font-weight: bold;
}

/* Form Text Enhancement */
.form-text {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.825rem;
    color: var(--text-muted);
    font-style: italic;
    line-height: 1.4;
}

.form-text.error {
    color: var(--error);
    font-weight: 600;
    font-style: normal;
}

.form-text.success {
    color: var(--success);
    font-weight: 600;
    font-style: normal;
}

.form-text.warning {
    color: var(--warning);
    font-weight: 600;
    font-style: normal;
}

/* Input Loading State */
.form-control.loading,
.form-input.loading {
    background-image: linear-gradient(90deg, transparent, rgba(88, 166, 255, 0.1), transparent);
    background-size: 200px 100%;
    animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

/* Input Focus Ring Animation */
.form-control:focus::after,
.form-input:focus::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border: 2px solid var(--accent-primary);
    border-radius: var(--border-radius);
    opacity: 0;
    animation: focus-ring 0.3s ease-out;
}

@keyframes focus-ring {
    0% {
        opacity: 1;
        transform: scale(1.05);
    }
    100% {
        opacity: 0;
        transform: scale(1.1);
    }
}

/* Tables */
.table-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
}

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

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-primary);
}

.table th {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.table td {
    color: var(--text-secondary);
}

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

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

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-sm);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(35, 134, 54, 0.1);
    border-color: var(--success);
    color: #3fb950;
}

.alert-warning {
    background: rgba(210, 153, 34, 0.1);
    border-color: var(--warning);
    color: #f2cc60;
}

.alert-error {
    background: rgba(248, 81, 73, 0.1);
    border-color: var(--error);
    color: #ff7b72;
}

.alert-info {
    background: rgba(88, 166, 255, 0.1);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-body {
    padding: 1.5rem;
}

.close {
    color: var(--text-secondary);
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    background: none;
    padding: 0.25rem;
}

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

/* Status Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-success {
    background: rgba(35, 134, 54, 0.2);
    color: #3fb950;
}

.badge-warning {
    background: rgba(210, 153, 34, 0.2);
    color: #f2cc60;
}

.badge-error {
    background: rgba(248, 81, 73, 0.2);
    color: #ff7b72;
}

.badge-info {
    background: rgba(88, 166, 255, 0.2);
    color: var(--accent-primary);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--gradient-dark);
    border: 1px solid var(--border-primary);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-primary);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
    display: block;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.stat-icon {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

/* Loading States */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(88, 166, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--accent-primary);
    animation: spin 1s ease-in-out infinite;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .sidebar {
        width: 60px;
    }
    
    .sidebar .sidebar-logo-text,
    .sidebar .sidebar-section-title,
    .sidebar .sidebar-menu-text,
    .sidebar .sidebar-menu-badge,
    .sidebar .sidebar-user-details {
        display: none;
    }
    
    .sidebar .sidebar-header {
        padding: 1.5rem 0.75rem;
        justify-content: center;
    }
    
    .sidebar .sidebar-menu-link {
        padding: 0.75rem;
        justify-content: center;
    }
    
    .sidebar .sidebar-user {
        padding: 1rem 0.75rem;
        text-align: center;
    }
    
    .sidebar .sidebar-user-actions {
        justify-content: center;
    }
    
    .main-content {
        margin-left: 60px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
        z-index: 1000;
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    
    .sidebar.collapsed {
        transform: translateX(-100%);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .main-content.sidebar-collapsed {
        margin-left: 0;
    }
    
    .mobile-sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
        display: none;
    }
    
    .mobile-sidebar-overlay.show {
        display: block;
    }
    
    .container {
        padding: 1rem;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .table-container {
        overflow-x: auto;
    }
    
    .modal-content {
        width: 95%;
        margin: 1rem;
    }
}

@media (max-width: 480px) {
    .btn {
        padding: 0.75rem 1rem;
        font-size: 0.8rem;
        min-height: 3rem;
    }

    .card {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .form-control, .form-input {
        padding: 1rem 1.125rem;
        font-size: 0.9rem;
        min-height: 3rem;
    }

    .page-header {
        padding: 1.5rem;
    }

    .page-header h1 {
        font-size: 1.75rem;
    }

    .page-header h1 i {
        font-size: 2rem;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

.hidden { display: none; }
.block { display: block; }
.inline { display: inline; }
.inline-block { display: inline-block; }

.w-full { width: 100%; }
.h-full { height: 100%; }

/* Enhanced Page Header */
.page-header {
    margin-bottom: 2.5rem;
    padding: 2rem;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border: 2px solid var(--border-primary);
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.page-header h1 {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.page-header h1 i {
    color: var(--accent-primary);
    font-size: 2.5rem;
    padding: 0.5rem;
    background: rgba(88, 166, 255, 0.1);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(88, 166, 255, 0.2);
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
    margin: 0;
}

.page-header code {
    background: var(--bg-primary);
    color: var(--accent-primary);
    padding: 0.375rem 0.75rem;
    border-radius: var(--border-radius-sm);
    font-family: 'Courier New', monospace;
    font-weight: 600;
    border: 1px solid var(--border-primary);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Enhanced Button Styles */
.btn-small {
    padding: 0.625rem 1.125rem;
    font-size: 0.825rem;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    filter: grayscale(0.7);
}

.btn:disabled:hover {
    transform: none;
    box-shadow: none;
    filter: grayscale(0.7);
}

/* Button with Icon Spacing */
.btn i {
    margin-right: 0.375rem;
    font-size: 0.9em;
}

.btn i:last-child {
    margin-right: 0;
    margin-left: 0.375rem;
}

.btn i:only-child {
    margin: 0;
}

/* Loading Button State */
.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    color: white;
}

/* Enhanced Responsive Grid */
@media (max-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .grid-3 {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.25rem;
    }

    .form-control, .form-input {
        padding: 1.125rem 1.25rem;
        font-size: 0.95rem;
        min-height: 3.25rem;
    }
}

@media (max-width: 640px) {
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .input-group {
        flex-direction: column;
    }

    .input-group .form-control,
    .input-group .form-input {
        border-radius: var(--border-radius);
        border-right: 2px solid var(--border-primary);
        min-height: 3.5rem;
    }

    .input-group .btn {
        border-radius: var(--border-radius);
        border-left: 2px solid var(--border-primary);
        margin-top: 0.5rem;
        min-height: 3.5rem;
    }
}

/* Info Box Styles */
.info-box {
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    position: relative;
    border-left: 4px solid;
    background: var(--bg-tertiary);
    border-color: var(--accent-primary);
    backdrop-filter: blur(10px);
}

.info-box-primary {
    background: rgba(88, 166, 255, 0.1);
    border-color: var(--accent-primary);
}

.info-box-success {
    background: rgba(35, 134, 54, 0.1);
    border-color: var(--success);
}

.info-box-warning {
    background: rgba(210, 153, 34, 0.1);
    border-color: var(--warning);
}

.info-box-danger {
    background: rgba(248, 81, 73, 0.1);
    border-color: var(--error);
}

.info-box-title {
    margin-bottom: 1rem;
    font-weight: 700;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-box-primary .info-box-title {
    color: var(--accent-primary);
}

.info-box-success .info-box-title {
    color: var(--success);
}

.info-box-warning .info-box-title {
    color: var(--warning);
}

.info-box-danger .info-box-title {
    color: var(--error);
}

.info-box p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Statistics Display */
.stats-display {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-top: 1.5rem;
    border: 2px solid var(--border-primary);
}

.stats-display .grid-3 {
    gap: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: bold;
    display: block;
    margin-bottom: 0.5rem;
}

.stat-value.primary {
    color: var(--accent-primary);
}

.stat-value.success {
    color: var(--success);
}

.stat-value.warning {
    color: var(--warning);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Action Section */
.action-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-primary);
}

.action-section h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.action-section h3 i {
    color: var(--accent-primary);
}

.action-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Code Display */
.code-display {
    background: var(--bg-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    font-family: 'Courier New', monospace;
    font-weight: 600;
    border: 1px solid var(--border-primary);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    color: var(--accent-primary);
    display: inline-block;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
}

.empty-state-icon {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    display: block;
}

.empty-state-title {
    color: var(--text-muted);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.empty-state-text {
    color: var(--text-secondary);
    margin: 0;
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-up {
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}