:root {
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-card: #16213e;
    --bg-input: #1a1a2e;
    --border-color: #2a2a4a;
    --text-primary: #e0e0e0;
    --text-secondary: #8899aa;
    --text-muted: #556677;
    --accent: #00d4aa;
    --accent-hover: #00b894;
    --danger: #ff6b6b;
    --warning: #ffd93d;
    --info: #6bcbff;
    --success: #00d4aa;
    --sidebar-width: 250px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
}

body.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 50%, #16213e 100%);
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 0;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.sidebar-header h3 {
    color: var(--accent);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 1px;
}

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

.sidebar-user {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-user .avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--bg-primary);
    flex-shrink: 0;
}

.sidebar-user .user-info small {
    display: block;
    color: var(--text-muted);
    font-size: 0.7rem;
}

.sidebar-user .user-info strong {
    font-size: 0.85rem;
}

.nav-list {
    list-style: none;
    padding: 10px 0;
}

.nav-list li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.88rem;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-list li a:hover, .nav-list li a.active {
    background: rgba(0, 212, 170, 0.08);
    color: var(--accent);
    border-left-color: var(--accent);
}

.nav-list li a .bi { font-size: 1.1rem; }
.nav-list .nav-label { color: var(--text-muted); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 1.5px; padding: 15px 20px 5px; }

/* Main content */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 0;
    min-height: 100vh;
}

.top-bar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 999;
}

.top-bar h4 { font-size: 1.1rem; font-weight: 600; }
.top-bar .breadcrumb { font-size: 0.8rem; color: var(--text-muted); }
.top-bar .breadcrumb span { color: var(--text-secondary); }

.page-content { padding: 25px 30px; }

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,0.3); }

.card .card-title { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.card .card-value { font-size: 1.8rem; font-weight: 700; color: var(--text-primary); }
.card .card-desc { font-size: 0.78rem; color: var(--text-muted); margin-top: 5px; }

/* Tables */
.table-container { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
table th { text-align: left; padding: 12px 15px; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); border-bottom: 2px solid var(--border-color); }
table td { padding: 12px 15px; font-size: 0.88rem; border-bottom: 1px solid var(--border-color); color: var(--text-secondary); }
table tr:hover td { background: rgba(255,255,255,0.02); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 8px;
    border: none;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

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

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.85; }

.btn-warning { background: var(--warning); color: #333; }

.btn-info { background: var(--info); color: #fff; }
.btn-info:hover { opacity: 0.85; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

.btn-sm { padding: 5px 12px; font-size: 0.78rem; }
.btn-lg { padding: 12px 28px; font-size: 1rem; }

/* Forms */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.82rem; color: var(--text-secondary); margin-bottom: 6px; font-weight: 500; }
.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: border-color 0.2s;
    outline: none;
}
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,212,170,0.1); }
.form-control::placeholder { color: var(--text-muted); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 100px; }

/* Login */
.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
}

.login-card h2 { text-align: center; color: var(--accent); font-size: 1.5rem; margin-bottom: 5px; }
.login-card p { text-align: center; color: var(--text-muted); font-size: 0.85rem; margin-bottom: 30px; }

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 20px;
}
.alert-danger { background: rgba(255,107,107,0.15); border: 1px solid rgba(255,107,107,0.3); color: var(--danger); }
.alert-success { background: rgba(0,212,170,0.15); border: 1px solid rgba(0,212,170,0.3); color: var(--accent); }
.alert-info { background: rgba(107,203,255,0.15); border: 1px solid rgba(107,203,255,0.3); color: var(--info); }

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.7);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

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

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 30px;
}

.modal h3 { margin-bottom: 20px; font-size: 1.1rem; color: var(--text-primary); }

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

/* Badges */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-admin { background: rgba(255,107,107,0.2); color: var(--danger); }
.badge-user { background: rgba(0,212,170,0.2); color: var(--accent); }
.badge-ssl { background: rgba(0,212,170,0.2); color: var(--accent); }
.badge-nossl { background: rgba(255,107,107,0.2); color: var(--danger); }
.badge-active { background: rgba(0,212,170,0.2); color: var(--accent); }
.badge-inactive { background: rgba(255,107,107,0.2); color: var(--danger); }

/* File browser */
.file-browser { margin-top: 0; }
.file-browser .file-header {
    display: grid;
    grid-template-columns: 1fr 100px 100px 80px 80px;
    gap: 10px;
    padding: 10px 15px;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border-color);
}

.file-browser .file-item {
    display: grid;
    grid-template-columns: 1fr 100px 100px 80px 80px;
    gap: 10px;
    padding: 10px 15px;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.15s;
    cursor: default;
}

.file-browser .file-item:hover { background: rgba(255,255,255,0.02); }

.file-browser .file-item .file-name {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    text-decoration: none;
}

.file-browser .file-item .file-name .bi { font-size: 1.2rem; }
.file-browser .file-item .file-name .bi-folder { color: var(--warning); }
.file-browser .file-item .file-name .bi-file-earmark, .file-browser .file-item .file-name .bi-file-text { color: var(--text-secondary); }
.file-browser .file-item .file-name .bi-file-code, .file-browser .file-item .file-name .bi-code-slash { color: var(--info); }
.file-browser .file-item .file-name .bi-file-image { color: var(--success); }
.file-browser .file-item .file-name .bi-file-pdf { color: var(--danger); }
.file-browser .file-item .file-name .bi-file-zip { color: var(--warning); }

.file-actions { display: flex; gap: 5px; justify-content: flex-end; }
.file-actions .btn { padding: 4px 8px; font-size: 0.75rem; }

.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    color: var(--text-muted);
    transition: all 0.3s;
    cursor: pointer;
    margin-bottom: 20px;
}

.upload-zone:hover, .upload-zone.dragover { border-color: var(--accent); color: var(--accent); background: rgba(0,212,170,0.05); }
.upload-zone .bi { font-size: 2.5rem; display: block; margin-bottom: 10px; }

/* Code editor */
.code-editor { width: 100%; min-height: 400px; font-family: 'Fira Code', 'Cascadia Code', 'Consolas', monospace; font-size: 0.88rem; line-height: 1.6; padding: 15px; background: #0a0a15; border: 1px solid var(--border-color); border-radius: 8px; color: #e0e0e0; resize: vertical; tab-size: 4; }

/* Grid */
.row { display: flex; flex-wrap: wrap; margin: 0 -10px; }
.col-12 { width: 100%; padding: 0 10px; }
.col-6 { width: 50%; padding: 0 10px; }
.col-4 { width: 33.333%; padding: 0 10px; }
.col-3 { width: 25%; padding: 0 10px; }

@media (max-width: 768px) {
    .col-6, .col-4, .col-3 { width: 100%; }
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .page-content { padding: 15px; }
    .top-bar { padding: 12px 15px; }
    .file-browser .file-header, .file-browser .file-item { grid-template-columns: 1fr 80px; }
    .file-browser .file-header span:nth-child(2), .file-browser .file-header span:nth-child(3),
    .file-browser .file-header span:nth-child(4), .file-browser .file-item span:nth-child(2),
    .file-browser .file-item span:nth-child(3), .file-browser .file-item span:nth-child(4) { display: none; }
}

.hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
}

@media (max-width: 768px) {
    .hamburger { display: block; }
}

.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; margin-bottom: 25px; }

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 10px; }
.mb-3 { margin-bottom: 15px; }
.mb-4 { margin-bottom: 20px; }
.mt-3 { margin-top: 15px; }
.mt-4 { margin-top: 20px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 10px; }
.gap-3 { gap: 15px; }
.flex-wrap { flex-wrap: wrap; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state .bi { font-size: 3rem; display: block; margin-bottom: 15px; }

.toolbar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 20px; align-items: center; justify-content: space-between; }

/* Port monitoring */
.port-info { display: flex; align-items: center; gap: 10px; }
.port-number { font-size: 1.2rem; font-weight: 700; color: var(--text-primary); font-family: 'Fira Code', monospace; }
.port-service { font-size: 0.82rem; color: var(--text-secondary); }
.port-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.port-dot.danger { background: var(--danger); }
.port-dot.warning { background: var(--warning); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Responsive table */
@media (max-width: 768px) {
    table { font-size: 0.82rem; }
    table th, table td { padding: 8px 10px; }
}

/* Loading spinner */
.spinner { width: 20px; height: 20px; border: 2px solid var(--border-color); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.6s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Toast notifications */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 99999; display: flex; flex-direction: column; gap: 10px; }
.toast { padding: 14px 20px; border-radius: 10px; font-size: 0.85rem; min-width: 280px; max-width: 400px; animation: slideIn 0.3s ease; display: flex; align-items: center; gap: 10px; box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
.toast-success { background: rgba(0,212,170,0.15); border: 1px solid rgba(0,212,170,0.3); color: var(--accent); }
.toast-error { background: rgba(255,107,107,0.15); border: 1px solid rgba(255,107,107,0.3); color: var(--danger); }
.toast-info { background: rgba(107,203,255,0.15); border: 1px solid rgba(107,203,255,0.3); color: var(--info); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }