@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
  --bg: #06060e;
  --surface: #0d0d1a;
  --surface-2: #14142a;
  --surface-3: #1a1a33;
  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(255,255,255,0.12);
  --text: #e8e8f0;
  --text-muted: #7878a0;
  --accent: #6c5ce7;
  --accent-light: #a29bfe;
  --accent-glow: rgba(108,92,231,0.2);
  --green: #00cec9;
  --green-dim: rgba(0,206,201,0.15);
  --yellow: #fdcb6e;
  --yellow-dim: rgba(253,203,110,0.15);
  --red: #ff6b6b;
  --red-dim: rgba(255,107,107,0.15);
  --blue: #74b9ff;
  --blue-dim: rgba(116,185,255,0.15);
  --gradient: linear-gradient(135deg, #6c5ce7, #00cec9);
  --radius: 12px;
  --radius-sm: 8px;
  --sidebar-w: 280px;
  --log-w: 340px;
  --font: 'Inter', -apple-system, system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'SF Mono', monospace;
}

html, body { height: 100%; }
body { font-family: var(--font); background: var(--bg); color: var(--text); -webkit-font-smoothing: antialiased; overflow: hidden; }

/* ── Auth overlay ── */
#auth-overlay {
  position: fixed; inset: 0; z-index: 200;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
}
#auth-overlay.hidden { display: none; }
.auth-card { text-align: center; animation: fadeIn .5s ease-out; }
.auth-logo {
  font-size: 1.6rem; font-weight: 800; letter-spacing: -0.04em;
  background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: 12px;
}
.auth-sub { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 28px; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* ── App layout ── */
#app { display: grid; grid-template-columns: var(--sidebar-w) 1fr; height: 100vh; position: relative; }

/* ── Sidebar ── */
#sidebar {
  background: var(--surface); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; overflow-y: auto;
  scrollbar-width: thin; scrollbar-color: var(--surface-3) transparent;
}
.sidebar-header { padding: 20px 20px 0; display: flex; align-items: center; gap: 8px; }
.sidebar-logo {
  font-weight: 800; font-size: 1.05rem; text-decoration: none;
  background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.sidebar-badge {
  font-size: 0.6rem; text-transform: uppercase; letter-spacing: 0.08em;
  padding: 2px 7px; border-radius: 4px; background: var(--surface-2); border: 1px solid var(--border);
  color: var(--text-muted); font-weight: 600;
}
.sidebar-user {
  margin: 20px 16px; padding: 12px; border-radius: var(--radius-sm);
  background: var(--surface-2); border: 1px solid var(--border);
  display: flex; gap: 10px; align-items: center;
}
.avatar {
  width: 32px; height: 32px; border-radius: 50%; background: var(--accent-glow);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700; color: var(--accent-light); flex-shrink: 0;
}
.user-info { min-width: 0; }
.user-email { font-size: 0.75rem; color: var(--text-muted); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.connect-btn {
  font: 500 0.7rem var(--font); color: var(--accent-light); background: none; border: none;
  cursor: pointer; padding: 0; margin-top: 2px;
}
.connect-btn:hover { text-decoration: underline; }

.sidebar-section { padding: 0 16px 16px; flex: 1; }
.section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.section-header span { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); font-weight: 600; }
.icon-btn {
  background: none; border: 1px solid var(--border); border-radius: 6px;
  color: var(--text-muted); cursor: pointer; padding: 5px; display: flex;
  transition: border-color .2s, color .2s;
}
.icon-btn:hover { border-color: var(--border-hover); color: var(--text); }

.create-flow { display: flex; gap: 6px; margin-bottom: 12px; }
.create-flow input {
  flex: 1; font: 400 0.8rem var(--font); padding: 8px 12px;
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text); outline: none; transition: border-color .2s;
}
.create-flow input::placeholder { color: var(--text-muted); }
.create-flow input:focus { border-color: var(--accent); }
.btn-create {
  background: var(--accent); border: none; border-radius: var(--radius-sm);
  color: #fff; cursor: pointer; padding: 0 10px; display: flex; align-items: center;
  transition: background .2s;
}
.btn-create:hover { background: #7c6ef7; }

.flow-list { display: flex; flex-direction: column; gap: 4px; }
.flow-item {
  padding: 10px 12px; border-radius: var(--radius-sm); cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  transition: background .15s;
}
.flow-item:hover { background: var(--surface-2); }
.flow-item.active { background: var(--accent-glow); border: 1px solid rgba(108,92,231,0.2); }
.flow-item-left { display: flex; flex-direction: column; min-width: 0; }
.flow-item-name { font-size: 0.82rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.flow-item-meta { font-size: 0.68rem; color: var(--text-muted); display: flex; gap: 6px; align-items: center; margin-top: 2px; }
.flow-item-actions { display: flex; gap: 2px; opacity: 0; transition: opacity .15s; }
.flow-item:hover .flow-item-actions { opacity: 1; }
.flow-item-actions button {
  background: none; border: none; color: var(--text-muted); cursor: pointer; padding: 4px;
  font-size: 0.7rem; border-radius: 4px; transition: color .15s, background .15s;
}
.flow-item-actions button:hover { color: var(--red); background: var(--red-dim); }

/* ── Main ── */
#main { overflow-y: auto; padding: 28px 36px; scrollbar-width: thin; scrollbar-color: var(--surface-3) transparent; }

.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 60vh; text-align: center; }
.empty-icon { margin-bottom: 20px; }
.empty-state h2 { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.empty-state p { font-size: 0.85rem; color: var(--text-muted); max-width: 340px; }

/* ── Flow header ── */
.flow-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; flex-wrap: wrap; gap: 12px; }
.flow-header-left { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.flow-name { font-size: 1.3rem; font-weight: 800; letter-spacing: -0.02em; }
.status-badge {
  font-size: 0.68rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  padding: 3px 10px; border-radius: 100px;
}
.status-draft { background: var(--surface-3); color: var(--text-muted); }
.status-ready { background: var(--green-dim); color: var(--green); }
.status-active { background: var(--green-dim); color: var(--green); animation: glow 2s ease-in-out infinite; }
.status-paused { background: var(--yellow-dim); color: var(--yellow); }
.status-archived { background: var(--red-dim); color: var(--red); }
.trigger-mode-badge { font-size: 0.68rem; font-weight: 500; padding: 3px 10px; border-radius: 100px; background: var(--blue-dim); color: var(--blue); }
@keyframes glow { 0%,100% { box-shadow: 0 0 0 0 var(--green-dim); } 50% { box-shadow: 0 0 8px 2px var(--green-dim); } }

.flow-header-actions { display: flex; gap: 6px; align-items: center; }
.action-btn {
  font: 500 0.78rem var(--font); display: inline-flex; align-items: center; gap: 5px;
  padding: 7px 14px; border-radius: var(--radius-sm);
  background: var(--surface-2); border: 1px solid var(--border); color: var(--text-muted);
  cursor: pointer; transition: all .2s;
}
.action-btn:hover { border-color: var(--border-hover); color: var(--text); }
.action-activate { border-color: rgba(0,206,201,0.3); color: var(--green); }
.action-activate:hover { background: var(--green-dim); border-color: var(--green); }
.action-pause { border-color: rgba(253,203,110,0.3); color: var(--yellow); }
.action-pause:hover { background: var(--yellow-dim); border-color: var(--yellow); }

/* ── Pipeline ── */
.pipeline-section { margin-bottom: 32px; }
.pipeline-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); font-weight: 600; margin-bottom: 14px; }
.pipeline { display: flex; flex-direction: column; gap: 0; position: relative; }
.pipeline::before {
  content: ''; position: absolute; left: 19px; top: 0; bottom: 0; width: 2px;
  background: var(--border); z-index: 0;
}

.block-card {
  position: relative; z-index: 1; margin-left: 40px; padding: 18px 20px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 12px; transition: border-color .2s, box-shadow .2s;
}
.block-card:hover { border-color: var(--border-hover); box-shadow: 0 4px 20px rgba(0,0,0,0.3); }
.block-card::before {
  content: ''; position: absolute; left: -28px; top: 22px; width: 16px; height: 2px;
  background: var(--border);
}
.block-dot {
  position: absolute; left: -34px; top: 16px; width: 12px; height: 12px;
  border-radius: 50%; border: 2px solid var(--border); background: var(--bg); z-index: 2;
}
.block-dot.trigger { background: var(--accent); border-color: var(--accent); }
.block-dot.ready { background: var(--green); border-color: var(--green); }
.block-dot.needs-input { background: var(--yellow); border-color: var(--yellow); }
.block-dot.stuck { background: var(--red); border-color: var(--red); }
.block-dot.building { background: var(--blue); border-color: var(--blue); animation: pulse-dot 1.5s infinite; }
@keyframes pulse-dot { 0%,100% { box-shadow: 0 0 0 0 var(--blue-dim); } 50% { box-shadow: 0 0 0 6px transparent; } }

.block-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.block-kind { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }
.block-kind.trigger-kind { color: var(--accent-light); }
.block-kind.action-kind { color: var(--text-muted); }
.block-state {
  font-size: 0.65rem; font-weight: 600; text-transform: uppercase; padding: 2px 8px;
  border-radius: 100px; letter-spacing: 0.04em;
}
.state-READY { background: var(--green-dim); color: var(--green); }
.state-NEEDS_INPUT { background: var(--yellow-dim); color: var(--yellow); }
.state-STUCK { background: var(--red-dim); color: var(--red); }
.state-BUILDING { background: var(--blue-dim); color: var(--blue); }

.block-service { font-size: 0.82rem; font-weight: 600; margin-bottom: 4px; }
.block-meta { font-size: 0.75rem; color: var(--text-muted); }
.block-fns { font: 400 0.72rem var(--mono); color: var(--accent-light); margin-top: 4px; }
.block-webhook { font: 400 0.72rem var(--mono); color: var(--green); margin-top: 4px; word-break: break-all; }
.block-question { margin-top: 8px; padding: 8px 12px; border-radius: var(--radius-sm); background: var(--yellow-dim); color: var(--yellow); font-size: 0.8rem; }
.block-error { margin-top: 8px; padding: 8px 12px; border-radius: var(--radius-sm); background: var(--red-dim); color: var(--red); font-size: 0.8rem; }
.block-actions { display: flex; gap: 6px; margin-top: 10px; }
.block-btn {
  font: 500 0.72rem var(--font); padding: 5px 12px; border-radius: 6px;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--text-muted);
  cursor: pointer; transition: all .15s;
}
.block-btn:hover { border-color: var(--border-hover); color: var(--text); }
.block-btn.test-btn:hover { border-color: var(--green); color: var(--green); background: var(--green-dim); }
.block-btn.answer-btn:hover { border-color: var(--yellow); color: var(--yellow); background: var(--yellow-dim); }

/* ── Add block ── */
.add-block-section { margin-bottom: 32px; }
.add-block-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.ghost-btn {
  font: 500 0.72rem var(--font); color: var(--text-muted); background: none; border: none;
  cursor: pointer; padding: 0; transition: color .2s;
}
.ghost-btn:hover { color: var(--accent-light); }

.add-block-form {
  padding: 20px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius);
}
.form-row { display: flex; gap: 12px; align-items: center; margin-bottom: 12px; }
.select-service {
  font: 500 0.82rem var(--font); padding: 8px 12px; background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text);
  outline: none; cursor: pointer; flex: 1; max-width: 200px; appearance: none;
}
.select-service:focus { border-color: var(--accent); }
.trigger-toggle { display: flex; align-items: center; gap: 6px; cursor: pointer; }
.trigger-toggle input { accent-color: var(--accent); }
.toggle-label { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }

.chat-input-row { display: flex; gap: 8px; align-items: flex-end; }
.chat-input-row textarea {
  flex: 1; font: 400 0.82rem var(--font); padding: 10px 14px; background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text);
  outline: none; resize: none; line-height: 1.5; transition: border-color .2s;
}
.chat-input-row textarea::placeholder { color: var(--text-muted); }
.chat-input-row textarea:focus { border-color: var(--accent); }
.btn-send {
  width: 40px; height: 40px; border-radius: var(--radius-sm); background: var(--gradient);
  border: none; color: #fff; cursor: pointer; display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: transform .15s, box-shadow .2s;
}
.btn-send:hover { transform: scale(1.05); box-shadow: 0 4px 16px var(--accent-glow); }

/* ── Pending (inline answer) ── */
#pending .pending-card {
  margin-top: 12px; padding: 16px; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius);
}
#pending .pending-q { font-size: 0.82rem; color: var(--yellow); margin-bottom: 10px; }
#pending .pending-row { display: flex; gap: 8px; }
#pending input {
  flex: 1; font: 400 0.82rem var(--font); padding: 8px 12px; background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); outline: none;
}
#pending input:focus { border-color: var(--accent); }
#pending button {
  font: 600 0.78rem var(--font); padding: 8px 16px; border-radius: var(--radius-sm);
  background: var(--accent); border: none; color: #fff; cursor: pointer;
}

/* ── Runs ── */
.runs-section { margin-bottom: 32px; }
.runs-list { display: flex; flex-direction: column; gap: 6px; }
.run-card {
  padding: 14px 18px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); display: flex; justify-content: space-between; align-items: center;
  transition: border-color .15s;
}
.run-card:hover { border-color: var(--border-hover); }
.run-left { display: flex; align-items: center; gap: 10px; }
.run-id { font: 500 0.75rem var(--mono); color: var(--text-muted); }
.run-status { font-size: 0.68rem; font-weight: 600; text-transform: uppercase; padding: 2px 8px; border-radius: 100px; }
.run-success { background: var(--green-dim); color: var(--green); }
.run-error { background: var(--red-dim); color: var(--red); }
.run-time { font-size: 0.72rem; color: var(--text-muted); }
.run-actions button {
  font: 500 0.72rem var(--font); padding: 5px 12px; border-radius: 6px;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--text-muted);
  cursor: pointer; transition: all .15s;
}
.run-actions button:hover { border-color: var(--border-hover); color: var(--text); }

.step-card {
  margin-left: 24px; margin-top: 6px; padding: 10px 14px; background: var(--surface-2);
  border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 0.78rem;
}
.step-ok { border-left: 3px solid var(--green); }
.step-err { border-left: 3px solid var(--red); }
.step-data { font: 400 0.72rem var(--mono); color: var(--text-muted); margin-top: 4px; white-space: pre-wrap; word-break: break-word; max-height: 120px; overflow-y: auto; }

/* ── Log panel ── */
.log-toggle {
  position: fixed; bottom: 20px; right: 20px; z-index: 50;
  width: 40px; height: 40px; border-radius: 50%; background: var(--surface-2);
  border: 1px solid var(--border); color: var(--text-muted); cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: all .2s;
}
.log-toggle:hover { border-color: var(--accent); color: var(--accent-light); }
.log-panel {
  position: fixed; right: 0; top: 0; bottom: 0; width: var(--log-w); z-index: 40;
  background: var(--surface); border-left: 1px solid var(--border);
  display: flex; flex-direction: column; transition: transform .3s ease;
}
.log-panel.collapsed { transform: translateX(100%); }
/* Open by default: the panel is where you watch the LLM build the flow, so
   it reserves real space rather than overlaying the pipeline. */
body:has(.log-panel:not(.collapsed)) #main { padding-right: calc(var(--log-w) + 36px); }
.log-header {
  padding: 16px 20px; display: flex; justify-content: space-between; align-items: center;
  border-bottom: 1px solid var(--border);
}
.log-header span { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); font-weight: 600; }
.log-output {
  flex: 1; overflow-y: auto; padding: 12px 16px; font: 400 0.72rem var(--mono);
  color: var(--text-muted); white-space: pre-wrap; word-break: break-word;
  scrollbar-width: thin; scrollbar-color: var(--surface-3) transparent;
}
.log-output .ok { color: var(--green); }
.log-output .err { color: var(--red); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: 3px; }

/* ── Responsive ── */
@media (max-width: 768px) {
  #app { grid-template-columns: 1fr; }
  #sidebar { display: none; }
  #main { padding: 20px 16px; }
}

/* ── Toasts: failures must be visible without opening the log panel ── */
#toasts {
  position: fixed; top: 16px; right: 16px; z-index: 300;
  display: flex; flex-direction: column; gap: 8px; max-width: 520px;
}
.toast {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 12px 14px; border-radius: 10px;
  font: 500 0.8rem/1.5 var(--mono, monospace);
  background: #2a1015; border: 1px solid #e5484d; color: #ffd7d9;
  box-shadow: 0 8px 32px rgba(0,0,0,.45);
  word-break: break-word; animation: toastIn .2s ease-out;
}
.toast-ok { background: #0d2018; border-color: #30a46c; color: #c8f2dc; }
.toast button {
  background: none; border: none; color: inherit; cursor: pointer;
  font-size: 1.1rem; line-height: 1; opacity: .6; flex-shrink: 0;
}
.toast button:hover { opacity: 1; }
@keyframes toastIn { from { opacity: 0; transform: translateX(12px); } to { opacity: 1; transform: none; } }

/* ── Template banner: what this landing page promised to build ── */
.tpl-banner {
  padding: 16px 20px; margin-bottom: 24px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
}
.tpl-title { font-weight: 700; font-size: .95rem; margin-bottom: 10px; }
.tpl-steps { display: flex; flex-wrap: wrap; gap: 8px; }
.tpl-steps span {
  font-size: .72rem; color: var(--text-muted); padding: 4px 10px;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 100px;
}