/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  --bg-base: #0A0F1E;
  --bg-surface: #111827;
  --bg-elevated: #1C2537;
  --border: #2A3A52;
  --border-focus: #3B82F6;
  --accent-blue: #3B82F6;
  --accent-blue-rgb: 59, 130, 246;
  --accent-teal: #14B8A6;
  --accent-red: #EF4444;
  --accent-amber: #F59E0B;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #475569;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius: 12px;
  --radius-sm: 6px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

html.light, body.light-theme {
  --bg-base: #faf8ff;
  --bg-surface: #f2f3ff;
  --bg-elevated: #ffffff;
  --border: #e2e8f0;
  --border-focus: #007a99;
  --accent-blue: #007a99;
  --accent-blue-rgb: 0, 122, 153;
  --accent-teal: #006079;
  --accent-red: #ba1a1a;
  --accent-amber: #f59e0b;
  --text-primary: #131b2e;
  --text-secondary: #505f76;
  --text-muted: #6f797e;
  --shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
}

/* ============================================================
   BASE & SCROLLBAR
   ============================================================ */
*, ::before, ::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  background-image: radial-gradient(var(--border) 1px, transparent 1px);
  background-size: 24px 24px;
  background-attachment: fixed;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* ============================================================
   GLASSMORPHISM
   ============================================================ */
.glass {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
}
html:not(.light) .glass {
  background: rgba(28, 37, 55, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.45);
}

/* ============================================================
   FORMS
   ============================================================ */
input[type="text"],
input[type="password"],
textarea {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  transition: var(--transition);
  outline: none;
  width: 100%;
}
input[type="text"]:focus,
input[type="password"]:focus,
textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px rgba(var(--accent-blue-rgb), 0.2);
}
input::placeholder, textarea::placeholder { color: var(--text-muted); }
textarea { resize: vertical; }

/* ============================================================
   BUTTONS — kept here because app.js injects these classes
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  gap: 0.5rem;
}
.btn-primary { background: var(--accent-blue); color: #fff; box-shadow: 0 4px 14px 0 rgba(0,122,153,0.3); }
.btn-primary:hover { background: var(--accent-teal); transform: translateY(-1px); box-shadow: 0 6px 20px 0 rgba(0,122,153,0.4); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { background: transparent; border-color: var(--border); color: var(--text-secondary); }
.btn-outline:hover { background: var(--bg-elevated); border-color: var(--text-muted); color: var(--text-primary); }
.btn-danger { background: rgba(186,26,26,0.1); border-color: rgba(186,26,26,0.2); color: var(--accent-red); }
.btn-danger:hover { background: var(--accent-red); border-color: var(--accent-red); color: #fff; }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.75rem; }
.btn-icon-only {
  background: transparent; border: none; color: var(--text-secondary);
  cursor: pointer; padding: 0.25rem 0.5rem; display: flex;
  align-items: center; justify-content: center;
  border-radius: var(--radius-sm); transition: var(--transition);
}
.btn-icon-only:hover { background: var(--bg-elevated); color: var(--text-primary); }

/* ============================================================
   BADGES — kept here because app.js injects these classes
   ============================================================ */
.badge {
  display: inline-flex; align-items: center; padding: 0.2rem 0.6rem;
  font-size: 0.75rem; font-weight: 500; border-radius: 9999px;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.badge-accent  { background: rgba(var(--accent-blue-rgb),0.15); color: var(--accent-blue); border: 1px solid rgba(var(--accent-blue-rgb),0.3); }
.badge-success { background: rgba(16,185,129,0.15); color: #10b981; border: 1px solid rgba(16,185,129,0.3); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--accent-amber); border: 1px solid rgba(245,158,11,0.3); }

/* ============================================================
   DATA TABLE — td spacing kept here because app.js injects rows
   ============================================================ */
.data-table td,
.data-table th {
  padding: 0.875rem 1.25rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
  vertical-align: middle;
}
.data-table th {
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  background: var(--bg-surface);
}
.data-table tbody tr { transition: var(--transition); }
.data-table tbody tr:hover { background: rgba(var(--accent-blue-rgb), 0.05); }
.data-table tbody tr:last-child td { border-bottom: none; }

/* TABLE ACTION CELL — kept here because app.js injects this */
.action-cell { display: flex; justify-content: flex-end; gap: 0.5rem; }

/* ============================================================
   CONSOLE LOG LINES — kept here because app.js injects these
   ============================================================ */
.console-line {
  line-height: 1.4; border-left: 2px solid transparent; padding-left: 0.5rem;
  font-family: var(--font-mono); font-size: 0.8125rem;
}
.console-line.info     { color: var(--accent-teal); }
.console-line.progress { color: var(--accent-blue); border-color: var(--accent-blue); }
.console-line.success  { color: #10b981; border-color: #10b981; }
.console-line.error    { color: var(--accent-red); border-color: var(--accent-red); }

/* ============================================================
   PROGRESS BAR — width animated by app.js
   ============================================================ */
.progress-bar-fill {
  height: 100%; width: 0%; background: var(--accent-blue); border-radius: 2px;
  transition: width 0.4s cubic-bezier(0.1, 0.8, 0.25, 1);
}

/* ============================================================
   DROPZONE DRAG STATE — class toggled by app.js
   ============================================================ */
.dragover { border-color: var(--accent-blue) !important; background: rgba(var(--accent-blue-rgb),0.05) !important; }

/* ============================================================
   PULSE RING — complex CSS animation, not doable in Tailwind
   ============================================================ */
.pulse-ring {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  border: 2px solid var(--accent-blue); border-radius: 50%;
  animation: pulseRing 1.5s infinite cubic-bezier(0.215, 0.610, 0.355, 1); opacity: 0;
}

/* ============================================================
   MARKDOWN PREVIEW
   ============================================================ */
.markdown-preview {
  background: var(--bg-elevated); border: 1px solid var(--border);
  color: var(--text-primary); padding: 1rem; border-radius: var(--radius-sm);
  min-height: 8rem; max-height: 400px; overflow-y: auto;
}
.markdown-preview h1, .markdown-preview h2, .markdown-preview h3 {
  margin: 1.25rem 0 0.5rem; font-weight: 600; color: var(--accent-blue);
}
.markdown-preview h1:first-child, .markdown-preview h2:first-child, .markdown-preview h3:first-child { margin-top: 0; }
.markdown-preview p { margin-bottom: 0.75rem; line-height: 1.6; }
.markdown-preview ul, .markdown-preview ol { margin-bottom: 0.75rem; padding-left: 1.5rem; }
.markdown-preview li { margin-bottom: 0.2rem; }
.markdown-preview strong { font-weight: 600; }
.markdown-preview code {
  font-family: var(--font-mono); font-size: 0.875em;
  background: var(--bg-surface); padding: 0.1em 0.3em; border-radius: 3px;
}

/* ============================================================
   TOAST SYSTEM — kept here because app.js creates these
   ============================================================ */
#toast-container {
  position: fixed; bottom: 2rem; right: 2rem;
  display: flex; flex-direction: column; gap: 0.75rem; z-index: 1000;
}
.toast {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-left: 4px solid var(--accent-blue); color: var(--text-primary);
  padding: 1rem 1.25rem; border-radius: var(--radius-sm); box-shadow: var(--shadow);
  display: flex; align-items: center; gap: 0.75rem;
  min-width: 280px; max-width: 400px; font-size: 0.875rem;
  animation: toastSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  transition: opacity 0.3s, transform 0.3s;
}
.toast.success { border-left-color: var(--accent-teal); }
.toast.error   { border-left-color: var(--accent-red); }
.toast.info    { border-left-color: var(--accent-blue); }

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes scaleX {
  0%   { transform: scaleX(0); }
  50%  { transform: scaleX(1); }
  100% { transform: scaleX(0); transform-origin: right; }
}

@keyframes cardFadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes toastSlideIn {
  from { opacity: 0; transform: translateX(100px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes pulseScale {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); color: #60a5fa; }
}
@keyframes pulseRing {
  0%   { transform: scale(0.65); opacity: 0; }
  50%  { opacity: 0.5; }
  100% { transform: scale(1.2); opacity: 0; }
}

/* ============================================================
   AGENT PIPELINE TIMELINE — kept here because app.js builds rows
   ============================================================ */
.agent-row {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  overflow: hidden; background: var(--bg-surface);
  transition: border-color 0.25s, box-shadow 0.25s;
}
.agent-row[data-state="running"] {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 1px rgba(var(--accent-blue-rgb), 0.15);
}
.agent-row[data-state="complete"] { opacity: 0.75; }
.agent-row[data-state="error"]    { border-color: var(--accent-red); }

.agent-row-header {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.7rem 1rem; cursor: pointer; user-select: none;
  transition: background 0.15s;
}
.agent-row-header:hover { background: var(--bg-elevated); }

.agent-state-dot {
  width: 0.5rem; height: 0.5rem; border-radius: 50%; flex-shrink: 0;
  transition: background 0.25s;
}
.agent-state-dot.queued   { background: var(--text-muted); }
.agent-state-dot.running  { background: var(--accent-blue); animation: agentDotPulse 1s infinite; }
.agent-state-dot.complete { background: var(--accent-teal); }
.agent-state-dot.error    { background: var(--accent-red); }

@keyframes agentDotPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.5); }
}

.agent-row-label { font-size: 0.875rem; font-weight: 500; color: var(--text-primary); flex: 1; }

.agent-row-meta { font-size: 0.75rem; font-family: var(--font-mono); white-space: nowrap; }
.agent-row-meta.queued   { color: var(--text-muted); }
.agent-row-meta.running  { color: var(--accent-blue); }
.agent-row-meta.complete { color: var(--accent-teal); }
.agent-row-meta.error    { color: var(--accent-red); }

.agent-toggle { color: var(--text-muted); font-size: 0.625rem; transition: transform 0.2s; flex-shrink: 0; }
.agent-toggle.open { transform: rotate(180deg); }

/* Steps panel inside each agent row */
.agent-steps { border-top: 1px solid var(--border); background: var(--bg-base); }

.agent-step {
  display: flex; align-items: center; gap: 0.625rem;
  padding: 0.375rem 1rem; min-height: 2rem;
}
.agent-step:not(:last-child) { border-bottom: 1px solid rgba(var(--accent-blue-rgb), 0.06); }
.step-icon { font-size: 0.75rem; flex-shrink: 0; width: 1rem; text-align: center; }
.step-label { font-size: 0.75rem; font-family: var(--font-mono); color: var(--text-secondary); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.step-badge {
  font-size: 0.6875rem; font-family: var(--font-mono); flex-shrink: 0;
  padding: 0.1rem 0.45rem; border-radius: 3px;
}
.step-badge.pending { background: rgba(var(--accent-blue-rgb), 0.12); color: var(--accent-blue); }
.step-badge.success { background: rgba(20, 184, 166, 0.12); color: var(--accent-teal); }
.step-badge.warn    { background: rgba(245, 158, 11, 0.12); color: var(--accent-amber); }

.step-expand-btn {
  font-size: 0.6875rem; font-family: var(--font-mono); background: var(--bg-elevated);
  border: 1px solid var(--border); color: var(--text-muted);
  padding: 0.1rem 0.4rem; border-radius: 3px; cursor: pointer; flex-shrink: 0;
  transition: var(--transition);
}
.step-expand-btn:hover { color: var(--text-primary); border-color: var(--text-muted); }

.step-query-block {
  margin: 0 1rem 0.5rem 2.375rem;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 0.5rem 0.75rem;
  font-family: var(--font-mono); font-size: 0.6875rem; color: var(--text-secondary);
  overflow-x: auto; white-space: pre-wrap; word-break: break-all; line-height: 1.5;
}

/* ============================================================
   SAMPLE CARDS
   ============================================================ */
.sample-card { cursor: pointer; }
.sample-card:hover { border-color: var(--accent-blue) !important; background: var(--bg-elevated) !important; }
.sample-card--active {
  border-color: var(--accent-blue) !important;
  box-shadow: 0 0 0 1px var(--accent-blue);
}
.sample-card--active .text-ink { color: var(--accent-blue) !important; }

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0s !important;
  }
}