/* ==========================================================================
   EasyVPN Admin Portal
   ========================================================================== */

:root {
    --bg-primary: #0f1117;
    --bg-secondary: #161922;
    --bg-tertiary: #1c1f2e;
    --bg-hover: #1f2335;
    --color-primary: #6366f1;
    --color-primary-hover: #818cf8;
    --color-primary-muted: rgba(99, 102, 241, 0.12);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --color-success: #34d399;
    --color-success-muted: rgba(52, 211, 153, 0.12);
    --color-warning: #fbbf24;
    --color-warning-muted: rgba(251, 191, 36, 0.12);
    --color-error: #f87171;
    --color-error-muted: rgba(248, 113, 113, 0.12);
    --border: #1e293b;
    --border-subtle: #1a1f30;
    --radius: 8px;
    --radius-sm: 6px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
    --transition: 0.15s ease;
    --font: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;
    --sidebar-width: 240px;
    --topnav-height: 56px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3 { font-weight: 600; color: #f1f5f9; letter-spacing: -0.01em; }
a { color: var(--color-primary-hover); text-decoration: none; }
a:hover { color: var(--color-primary); }
code { font-family: var(--font-mono); font-size: 0.85em; }

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    font-family: var(--font);
    font-size: 13px;
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    line-height: 1.4;
}

.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}
.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border);
}
.btn-outline:hover:not(:disabled) {
    color: var(--text-primary);
    border-color: var(--text-muted);
    background: var(--bg-hover);
}

.btn-danger {
    background: var(--color-error);
    color: #fff;
}
.btn-danger:hover:not(:disabled) {
    background: #ef4444;
}

.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-block { width: 100%; }

/* ==========================================================================
   Forms
   ========================================================================== */

.form-group { margin-bottom: 16px; }

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 9px 12px;
    font-family: var(--font);
    font-size: 13px;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-muted);
}

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

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2364748b' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.form-row {
    display: flex;
    gap: 24px;
    margin-top: 4px;
    margin-bottom: 16px;
    padding: 12px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.form-check label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-primary);
}

.form-check input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.checkbox-list {
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    padding: 4px 0;
}

.checkbox-list label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-primary);
    transition: background 0.1s;
}

.checkbox-list label:hover {
    background: var(--bg-hover);
}

.checkbox-list input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-list .checkbox-meta {
    color: var(--text-muted);
    font-size: 12px;
    margin-left: auto;
}

.badge-type {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-type-http { background: rgba(99, 102, 241, 0.15); color: #818cf8; }
.badge-type-ssh { background: rgba(52, 211, 153, 0.15); color: #34d399; }
.badge-type-rdp { background: rgba(251, 191, 36, 0.15); color: #fbbf24; }

.form-error {
    padding: 10px 14px;
    margin-bottom: 16px;
    font-size: 13px;
    color: var(--color-error);
    background: var(--color-error-muted);
    border: 1px solid rgba(248, 113, 113, 0.2);
    border-radius: var(--radius-sm);
}

.form-hint {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-muted);
}

/* ==========================================================================
   Login
   ========================================================================== */

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    background: var(--bg-primary);
}

.login-card {
    width: 100%;
    max-width: 380px;
    padding: 40px 32px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.login-logo {
    text-align: center;
    margin-bottom: 16px;
}

.login-brand {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 2px;
    color: #f8fafc;
    letter-spacing: -0.02em;
}

.login-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 28px;
    font-size: 13px;
}

.login-hint {
    text-align: center;
    margin-top: 16px;
    font-size: 12px;
    color: var(--color-warning);
    background: var(--color-warning-muted);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
}

/* ==========================================================================
   Top Navigation
   ========================================================================== */

.topnav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--topnav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    z-index: 100;
}

.topnav-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topnav-brand {
    font-size: 16px;
    font-weight: 700;
    color: #f8fafc;
    letter-spacing: -0.02em;
}

.topnav-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.topnav-user {
    font-size: 12px;
    color: var(--text-muted);
}

.mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
}

/* ==========================================================================
   Sidebar
   ========================================================================== */

.app-layout {
    display: flex;
    padding-top: var(--topnav-height);
    min-height: 100vh;
}

.sidebar {
    position: fixed;
    top: var(--topnav-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 12px 0;
    overflow-y: auto;
    z-index: 90;
}

.sidebar-nav { list-style: none; }

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 20px;
    margin: 1px 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.sidebar-link:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
    text-decoration: none;
}

.sidebar-link.active {
    color: #f1f5f9;
    background: var(--color-primary-muted);
}

.sidebar-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    opacity: 0.7;
}

.sidebar-link.active .sidebar-icon { opacity: 1; }

.sidebar-separator {
    height: 1px;
    background: var(--border);
    margin: 8px 20px;
}

/* ==========================================================================
   Main Content
   ========================================================================== */

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 28px 32px;
    min-width: 0;
}

.view-title {
    font-size: 1.25rem;
    margin-bottom: 20px;
}

.view-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.view-header .view-title { margin-bottom: 0; }

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    margin-bottom: 4px;
    color: var(--text-muted);
}

.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--text-primary); }
.breadcrumb-sep { color: var(--text-muted); opacity: 0.5; }

.section { margin-top: 28px; }

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.section-header h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.stat-card {
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: border-color var(--transition);
}

.stat-card:hover { border-color: var(--border-subtle); }

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: #f1f5f9;
    line-height: 1;
}

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

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 20px;
}

.settings-card {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 24px;
}

.settings-card h3 {
    font-size: 15px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.settings-info p {
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

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

/* ==========================================================================
   Tables
   ========================================================================== */

.table-container {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow-x: auto;
}

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

.data-table th {
    text-align: left;
    padding: 10px 16px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.15);
    white-space: nowrap;
}

.data-table td {
    padding: 10px 16px;
    font-size: 13px;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-secondary);
}

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

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

.data-table .clickable { cursor: pointer; }
.data-table .clickable:hover { background: var(--color-primary-muted); }

.data-table td code {
    color: var(--text-primary);
    font-size: 12px;
    background: var(--bg-primary);
    padding: 2px 6px;
    border-radius: 3px;
}

.empty-state {
    padding: 40px 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
}

.empty-state a { margin-left: 4px; }

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

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

.badge-online::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-success);
}

.badge-offline {
    background: rgba(100, 116, 139, 0.12);
    color: var(--text-muted);
}

.badge-pending {
    background: var(--color-warning-muted);
    color: var(--color-warning);
}

.badge-yes { color: var(--color-success); font-size: 12px; }
.badge-no { color: var(--text-muted); font-size: 12px; }

/* ==========================================================================
   Modals
   ========================================================================== */

.modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.15s ease;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 440px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 24px;
    animation: scaleIn 0.15s ease;
}

.modal-wide { max-width: 580px; }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.modal-header h3 { font-size: 16px; }

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    transition: color var(--transition);
}

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

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

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

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
}

/* ==========================================================================
   Enrollment / Token
   ========================================================================== */

.enrollment-section { margin-bottom: 16px; }

.enrollment-warning {
    padding: 10px 14px;
    margin-bottom: 16px;
    background: var(--color-warning-muted);
    border: 1px solid rgba(251, 191, 36, 0.2);
    border-radius: var(--radius-sm);
    color: var(--color-warning);
    font-size: 13px;
    font-weight: 500;
}

.enrollment-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 6px;
}

.token-display {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 10px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.token-value {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 12px;
    word-break: break-all;
    color: var(--color-success);
    line-height: 1.6;
}

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

/* ==========================================================================
   Notifications
   ========================================================================== */

.notifications {
    position: fixed;
    top: calc(var(--topnav-height) + 12px);
    right: 16px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-width: 360px;
}

.toast {
    padding: 10px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    font-size: 13px;
    animation: slideIn 0.2s ease;
}

.toast-success { border-left: 3px solid var(--color-success); }
.toast-error { border-left: 3px solid var(--color-error); }
.toast-warning { border-left: 3px solid var(--color-warning); }

@keyframes slideIn {
    from { opacity: 0; transform: translateX(16px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ==========================================================================
   Mobile overlay
   ========================================================================== */

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 80;
}

.sidebar-overlay.active { display: block; }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 768px) {
    .mobile-menu-btn { display: flex; }

    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.2s ease;
    }

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

    .main-content {
        margin-left: 0;
        padding: 20px 16px;
    }

    .card-grid { grid-template-columns: 1fr; }
    .settings-grid { grid-template-columns: 1fr; }

    .view-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .topnav-user { display: none; }

    .modal-content { padding: 20px; margin: 0 8px; }

    .token-display { flex-direction: column; }

    .form-row { flex-direction: column; gap: 12px; }

    .data-table th,
    .data-table td {
        padding: 8px 10px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .login-card { padding: 28px 20px; }
    .card-grid { gap: 12px; }
    .stat-card { padding: 16px; }
    .stat-value { font-size: 1.5rem; }
}