:root {
  --bg: #0b0b10;
  --surface: #12121a;
  --surface-2: #1a1a26;
  --surface-3: #222233;
  --border: #2a2a3e;
  --border-2: #3a3a52;
  --text: #e8e8ef;
  --text-2: #a0a0b8;
  --text-3: #6b6b80;
  --accent: #6366f1;
  --accent-2: #8b5cf6;
  --accent-glow: rgba(99,102,241,0.15);
  --green: #22c55e;
  --green-bg: rgba(34,197,94,0.12);
  --red: #ef4444;
  --red-bg: rgba(239,68,68,0.12);
  --amber: #f59e0b;
  --code-bg: #0f0f16;
  --shadow: 0 4px 24px rgba(0,0,0,0.45);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 13px var(--font);
  height: 100%;
  overflow: hidden;
}

#app { display: flex; flex-direction: column; height: 100vh; }

/* Topbar */
.topbar {
  height: 56px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  flex-shrink: 0;
  gap: 14px;
}

.brand { display: flex; align-items: center; gap: 10px; }
.logo {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 14px;
  box-shadow: 0 0 12px var(--accent-glow);
}
.brand-name { font-size: 15px; font-weight: 700; letter-spacing: -0.2px; }
.brand-tag { font-size: 11px; color: var(--text-3); margin-top: 1px; }

.topbar-center { display: flex; gap: 8px; align-items: center; margin-left: auto; }
.topbar-right { display: flex; gap: 8px; align-items: center; }

.status-pill {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); border-radius: 999px;
  padding: 5px 10px; font-size: 11px; color: var(--text-2); background: var(--surface-2);
}
.status-pill.live { border-color: var(--green); background: var(--green-bg); color: var(--green); }
.status-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--text-3); }
.status-pill.live .status-dot { background: var(--green); }
.status-dot.kernel { background: var(--amber); }

.wallet-bar { display: flex; align-items: center; }
.wallet-icon { margin-right: 6px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface-2); color: var(--text-2);
  padding: 7px 12px; font-size: 12px; font-weight: 500; cursor: pointer; font-family: var(--font);
  transition: all 0.15s ease;
}
.btn:hover { border-color: var(--border-2); color: var(--text); background: var(--surface-3); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-2); border-color: var(--accent-2); box-shadow: 0 0 12px var(--accent-glow); }
.btn-ghost { background: transparent; }
.btn-good { background: var(--green); border-color: var(--green); color: #fff; }
.btn-good:hover { background: #16a34a; border-color: #16a34a; }

.btn-row { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0; }

/* Workspace */
.workspace { display: flex; flex: 1; overflow: hidden; }

/* Sidebar */
.sidebar {
  width: 56px; background: var(--surface); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: center; padding: 10px 0; flex-shrink: 0;
}
.sidebar-section { display: flex; flex-direction: column; gap: 4px; width: 100%; align-items: center; }
.sidebar-section.bottom { margin-top: auto; }

.nav-item {
  width: 40px; height: 40px; border: 0; border-radius: var(--radius-sm);
  background: transparent; color: var(--text-3); font-size: 16px; cursor: pointer;
  display: flex; align-items: center; justify-content: center; position: relative;
  transition: all 0.15s ease;
}
.nav-item:hover { background: var(--surface-2); color: var(--text-2); }
.nav-item.active { background: var(--accent-glow); color: var(--accent); }
.nav-label { display: none; }

/* Main */
.main {
  flex: 1; overflow-y: auto; padding: 20px 24px 60px;
  background: var(--bg);
}

.panel { display: none; }
.panel.active { display: block; animation: fadeIn 0.2s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

.panel-header {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-bottom: 16px;
}
.panel-title { font-size: 18px; font-weight: 700; margin: 0; letter-spacing: -0.3px; }
.toolbar { display: flex; gap: 6px; flex-wrap: wrap; }

/* Cells */
.cells { display: flex; flex-direction: column; gap: 14px; }
.cell {
  display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 10px;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface);
  overflow: hidden;
}
.cell-gutter {
  background: var(--surface-2); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: center; padding: 8px 0; gap: 6px;
}
.cell-run {
  width: 28px; height: 28px; border: 1px solid var(--border-2); border-radius: var(--radius-sm);
  background: var(--surface-3); color: var(--green); font-size: 11px; cursor: pointer;
  display: grid; place-items: center; padding: 0;
}
.cell-run:hover { background: var(--green-bg); border-color: var(--green); }
.cell-num { font-size: 10px; color: var(--text-3); font-family: var(--font-mono); }
.cell-body { padding: 10px 12px 12px; }
.cell-meta { font-size: 11px; color: var(--text-3); margin-bottom: 6px; }
.cell-meta code { font-family: var(--font-mono); background: var(--code-bg); padding: 1px 5px; border-radius: 4px; font-size: 10px; }
.cell-editor {
  width: 100%; min-height: 64px; background: var(--code-bg); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px;
  font: 12.5px var(--font-mono); line-height: 1.5; resize: vertical; outline: none;
}
.cell-editor:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }
.cell-output {
  margin-top: 8px; padding: 10px 12px; background: var(--code-bg); border-radius: var(--radius-sm);
  border: 1px solid var(--border); font: 12px var(--font-mono); line-height: 1.45;
  white-space: pre-wrap; word-break: break-word; max-height: 420px; overflow: auto;
  color: var(--text-2);
}
.cell-output.empty { color: var(--text-3); font-style: italic; border-style: dashed; }
.cell-output.err { border-color: var(--red); background: var(--red-bg); color: var(--red); }

/* Right rail */
.right-rail {
  width: 260px; background: var(--surface); border-left: 1px solid var(--border);
  overflow-y: auto; padding: 14px; flex-shrink: 0;
}
.rail-card {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px; margin-bottom: 12px;
}
.rail-card h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 0.8px; color: var(--text-3); margin: 0 0 10px; }
.stat-row { display: flex; justify-content: space-between; align-items: center; padding: 4px 0; font-size: 12px; }
.stat-label { color: var(--text-3); }
.stat-value { color: var(--text); font-weight: 600; }
.stat-value.mono { font-family: var(--font-mono); font-size: 10.5px; }

.reward-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.reward-item { background: var(--surface-3); border-radius: var(--radius-sm); padding: 6px 8px; font-size: 11px; }
.reward-item .reward-name { color: var(--text-3); }
.reward-item .reward-amt { color: var(--accent); font-weight: 700; }

/* Forms */
.panel-body label { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-3); margin: 12px 0 5px; }
.panel-body input, .panel-body select, .panel-body textarea {
  width: 100%; background: var(--code-bg); color: var(--text); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 8px 10px; font-size: 12px; font-family: var(--font);
  outline: none;
}
.panel-body input:focus, .panel-body select:focus, .panel-body textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }
.field-large { min-height: 80px; resize: vertical; font-family: var(--font-mono); line-height: 1.45; }
.keyrow { display: flex; gap: 6px; }
.keyrow input { flex: 1; }

.hint { font-size: 12px; color: var(--text-3); margin: 4px 0 10px; }

/* Cards */
.card {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px; margin: 8px 0;
}
.card h4 { margin: 0 0 4px; font-size: 13px; }
.card pre { margin: 8px 0 0; background: var(--code-bg); padding: 10px; border-radius: var(--radius-sm); overflow: auto; max-height: 200px; font-size: 11px; }

/* Token cards */
.token-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 14px; }
.token-card {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; text-align: center;
}
.token-label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-3); margin-bottom: 6px; }
.token-value { font-size: 22px; font-weight: 700; color: var(--accent); }
.token-sub { font-size: 11px; color: var(--text-3); margin-top: 4px; }

/* Preview */
.preview-frame { width: 100%; height: 320px; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; margin-top: 10px; }

/* Modal */
.modal { display: none; position: fixed; inset: 0; z-index: 100; align-items: center; justify-content: center; }
.modal.open { display: flex; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); }
.modal-card {
  position: relative; background: var(--surface); border: 1px solid var(--border-2);
  border-radius: var(--radius-lg); padding: 24px; width: 420px; max-width: 92vw;
  box-shadow: var(--shadow);
}
.modal-card h2 { margin: 0 0 6px; font-size: 18px; }
.wallet-options { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 14px 0; }
.wallet-option {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; cursor: pointer; text-align: center; transition: all 0.15s ease;
}
.wallet-option:hover { border-color: var(--accent); background: var(--accent-glow); }
.wallet-opt-icon { font-size: 28px; margin-bottom: 6px; }
.wallet-opt-name { font-weight: 600; font-size: 13px; }
.wallet-opt-desc { font-size: 11px; color: var(--text-3); margin-top: 2px; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* Provider blocks */
.provider-block { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; margin: 10px 0; }
.provider-block h3 { margin: 0 0 8px; font-size: 13px; }

/* Responsive */
@media (max-width: 1100px) {
  .right-rail { display: none; }
}
@media (max-width: 720px) {
  .sidebar { width: 44px; }
  .nav-item { width: 34px; height: 34px; font-size: 14px; }
  .main { padding: 14px 16px 40px; }
  .token-cards { grid-template-columns: 1fr; }
}