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

:root {
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  --radius: 8px;
}

:root, [data-theme="dark"] {
  --bg: #0f1117;
  --bg2: #1a1d27;
  --bg3: #252836;
  --border: #2e3347;
  --text: #e2e8f0;
  --text2: #94a3b8;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --success: #22c55e;
  --warn: #f59e0b;
  --danger: #ef4444;
  --log-bg: #090b11;
  --log-text: #c9d1d9;
}

[data-theme="light"] {
  --bg: #f1f5f9;
  --bg2: #ffffff;
  --bg3: #f8fafc;
  --border: #e2e8f0;
  --text: #0f172a;
  --text2: #64748b;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --success: #16a34a;
  --warn: #d97706;
  --danger: #dc2626;
  --log-bg: #1e293b;
  --log-text: #cbd5e1;
}

html, body { height: 100%; }
body { background: var(--bg); color: var(--text); font-family: var(--font); font-size: 14px; line-height: 1.5; }

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
.nav {
  display: flex; align-items: center; gap: 16px;
  background: var(--bg2); border-bottom: 1px solid var(--border);
  padding: 0 24px; height: 56px; position: sticky; top: 0; z-index: 100;
}
.nav-brand { font-size: 16px; font-weight: 700; color: var(--text); letter-spacing: -0.5px; }
.nav-links { display: flex; gap: 4px; flex: 1; }
.nav-links a {
  color: var(--text2); padding: 6px 12px; border-radius: var(--radius);
  font-size: 13px; transition: background .15s, color .15s;
}
.nav-links a:hover, .nav-links a.active { background: var(--bg3); color: var(--text); text-decoration: none; }
.nav-right { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.nav-user { color: var(--text2); font-size: 13px; }

.page { padding: 32px 24px; max-width: 1200px; margin: 0 auto; }
.page-title { font-size: 22px; font-weight: 700; margin-bottom: 24px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: var(--radius); border: none;
  font-size: 13px; font-weight: 500; cursor: pointer; transition: background .15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--bg3); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-success { background: var(--success); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* Segmented tabs (dashboard overview chart) */
.oc-tabs { display: inline-flex; gap: 2px; background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius); padding: 2px; }
.oc-tab { border: none; background: transparent; color: var(--text2); font: inherit; font-size: 13px; font-weight: 500; padding: 5px 14px; border-radius: 6px; cursor: pointer; transition: background .15s, color .15s; }
.oc-tab:hover { color: var(--text); }
.oc-tab.active { background: var(--primary); color: #fff; }

/* Cards */
.card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.card-title { font-size: 13px; font-weight: 600; color: var(--text2); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 12px; }

/* Grid */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }

/* Status dots */
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; }
.dot-online { background: var(--success); box-shadow: 0 0 6px var(--success); }
.dot-offline { background: var(--text2); }
.dot-banned { background: var(--danger); }

/* Progress bar */
.progress { background: var(--bg3); border-radius: 4px; height: 6px; overflow: hidden; margin: 4px 0; }
.progress-fill { height: 100%; border-radius: 4px; transition: width .3s; }
.progress-fill-cpu { background: var(--primary); }
.progress-fill-ram { background: var(--success); }
.progress-fill-disk { background: var(--warn); }
.progress-fill-danger { background: var(--danger); }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 11px; font-weight: 600; color: var(--text2); text-transform: uppercase; letter-spacing: .5px; padding: 8px 12px; border-bottom: 1px solid var(--border); }
td { padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 13px; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg3); }
tr.row-danger td { background: rgba(239,68,68,.06); }

/* Forms */
.form-group { margin-bottom: 16px; }
label { display: block; font-size: 12px; font-weight: 600; color: var(--text2); margin-bottom: 6px; }
input, select, textarea {
  width: 100%; padding: 8px 12px; background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text); font-size: 14px; outline: none;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); }
input::placeholder { color: var(--text2); }

/* Modal */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 200;
  display: flex; align-items: center; justify-content: center;
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; min-width: 400px; max-width: 560px; width: 100%;
}
.modal-title { font-size: 16px; font-weight: 700; margin-bottom: 20px; }
.modal-footer { display: flex; gap: 8px; justify-content: flex-end; margin-top: 24px; }

/* Alert / Notice */
.alert { padding: 10px 14px; border-radius: var(--radius); font-size: 13px; margin-bottom: 16px; }
.alert-danger { background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.3); color: #fca5a5; }
.alert-success { background: rgba(34,197,94,.1); border: 1px solid rgba(34,197,94,.3); color: #86efac; }
.alert-warn { background: rgba(245,158,11,.1); border: 1px solid rgba(245,158,11,.3); color: #fcd34d; }
.alert-info { background: rgba(99,102,241,.1); border: 1px solid rgba(99,102,241,.3); color: #a5b4fc; }
.hidden { display: none !important; }

/* Logs terminal */
.log-terminal {
  background: var(--log-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; font-family: var(--mono); font-size: 12px; line-height: 1.6;
  height: 500px; overflow-y: auto; white-space: pre-wrap; word-break: break-all;
  color: var(--log-text);
}

/* Badges */
.badge { display: inline-block; padding: 2px 8px; border-radius: 99px; font-size: 11px; font-weight: 600; }
.badge-success { background: rgba(34,197,94,.15); color: var(--success); }
.badge-danger { background: rgba(239,68,68,.15); color: var(--danger); }
.badge-warn { background: rgba(245,158,11,.15); color: var(--warn); }
.badge-info { background: rgba(99,102,241,.15); color: #818cf8; }
.badge-gray { background: var(--bg3); color: var(--text2); }

/* Breadcrumbs */
.breadcrumbs { display: flex; gap: 6px; align-items: center; color: var(--text2); font-size: 13px; margin-bottom: 20px; }
.breadcrumbs span { color: var(--text2); }

/* Pagination */
.pagination { display: flex; gap: 8px; align-items: center; margin-top: 20px; }

/* Deploy progress */
.deploy-progress { margin-top: 20px; }
.deploy-step { display: flex; align-items: center; gap: 10px; padding: 8px 0; font-size: 13px; }
.step-icon { width: 20px; text-align: center; }

/* Slider */
input[type="range"] { padding: 0; border: none; background: none; accent-color: var(--primary); cursor: pointer; }

/* Login page */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-box { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 40px; width: 360px; }
.login-title { font-size: 24px; font-weight: 800; margin-bottom: 8px; }
.login-sub { color: var(--text2); font-size: 13px; margin-bottom: 32px; }

/* Server card */
.server-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; cursor: pointer; transition: border-color .15s, opacity .15s; }
.server-card:hover { border-color: var(--primary); }
.server-card-offline { border-color: var(--warn) !important; opacity: 0.72; }
.server-card-offline:hover { border-color: var(--warn) !important; opacity: 0.9; }
.server-card-header { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.server-name { font-size: 15px; font-weight: 600; }
.server-ip { font-size: 12px; color: var(--text2); }
.agent-offline-banner { display: flex; align-items: center; gap: 10px; background: rgba(245,158,11,.1); border: 1px solid var(--warn); border-radius: var(--radius); padding: 10px 16px; margin-bottom: 16px; font-size: 13px; color: var(--warn); }
.metric-row { display: flex; justify-content: space-between; font-size: 12px; color: var(--text2); margin-bottom: 2px; }
.metric-row span:last-child { color: var(--text); font-weight: 500; }

/* ENV editor */
.env-row { display: grid; grid-template-columns: 1fr 1fr auto; gap: 8px; margin-bottom: 8px; align-items: center; }
.env-row .btn-sm { align-self: center; }

/* Tabs */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
.tab { padding: 8px 16px; font-size: 13px; font-weight: 500; color: var(--text2); cursor: pointer; border-bottom: 2px solid transparent; transition: color .15s; display: flex; align-items: center; }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

@keyframes pulse { 0%,100% { opacity:1 } 50% { opacity:.3 } }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Collapsible */
.collapsible-header { cursor: pointer; user-select: none; display: flex; align-items: center; gap: 8px; }
.collapsible-content { overflow: hidden; transition: max-height .3s; }

@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }

@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  display: inline-block;
  width: 34px;
  height: 34px;
  border: 4px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}