/* my-deepagent Web GUI — v0.2 PR #3 (Claude design pass).
 *
 * Visual reference: Anthropic / Claude design language
 *   - Warm cream paper background (#F5F0E8 family)
 *   - Charcoal warm-tinted ink for body
 *   - Tiempos / Source Serif headings (serif heads, sans body)
 *   - Rust / terracotta accent (#CC5500 family)
 *   - Generous whitespace, soft 1px borders, minimal shadow
 *   - Rounded corners 6–12 px, no heavy elevation
 *
 * Vanilla CSS only. No framework, no build system.
 */

/* ---------- Reset + tokens ---------- */

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

:root {
  /* Paper / surface */
  --bg: #f5f0e8;
  --surface-1: #fbfaf6;
  --surface-2: #efe9de;
  --surface-3: #e7e0d3;
  --surface-hover: #eee7da;

  /* Borders */
  --border: #e2dccf;
  --border-strong: #cfc7b6;

  /* Ink */
  --text-primary: #1b1916;
  --text-secondary: #54514a;
  --text-muted: #8a857a;
  --text-faint: #b6b0a3;

  /* Accents (rust + supporting palette) */
  --accent: #c14a1a;
  --accent-hover: #a73d12;
  --accent-bg: rgba(193, 74, 26, 0.1);

  --success: #4a6f2a;
  --success-bg: rgba(74, 111, 42, 0.1);
  --warning: #a86c1f;
  --warning-bg: rgba(168, 108, 31, 0.12);
  --danger: #a33419;
  --danger-bg: rgba(163, 52, 25, 0.1);
  --info: #4a5d8c;
  --info-bg: rgba(74, 93, 140, 0.1);

  /* Type */
  --font-serif: "Tiempos Headline", "Source Serif Pro", "IBM Plex Serif",
    "Georgia", "Apple SD Gothic Neo", "Noto Serif KR", serif;
  --font-sans: "Styrene B", "Styrene A", "Inter", "Pretendard",
    -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
    "Noto Sans KR", "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Menlo", "Monaco", "Consolas",
    monospace;

  /* Geometry */
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 12px;

  --shadow-card: 0 1px 0 rgba(28, 25, 22, 0.04);
}

/* ---------- Base ---------- */

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-variant-numeric: tabular-nums;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

code,
kbd,
.mono {
  font-family: var(--font-mono);
  font-size: 0.86em;
  letter-spacing: -0.005em;
}

::selection {
  background: var(--accent);
  color: var(--surface-1);
}

/* ---------- Header / nav ---------- */

header {
  background: transparent;
  border-bottom: 1px solid var(--border);
  padding: 20px 36px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
}

header h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

header h1 a {
  color: inherit;
}

header h1 a:hover {
  text-decoration: none;
  color: var(--accent);
}

header nav {
  display: flex;
  gap: 4px;
  align-self: center;
}

header nav a {
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 400;
  transition: all 0.15s ease;
}

header nav a:hover {
  color: var(--text-primary);
  background: var(--surface-2);
  text-decoration: none;
}

header nav a.active {
  color: var(--accent);
  background: var(--accent-bg);
}

/* ---------- Main ---------- */

main {
  flex: 1;
  max-width: 1180px;
  width: 100%;
  margin: 0 auto;
  padding: 40px 36px 64px;
}

.page-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
}

.page-title h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 500;
  letter-spacing: -0.02em;
  text-transform: none;
  color: var(--text-primary);
}

.page-subtitle {
  color: var(--text-muted);
  font-size: 14px;
}

h2 {
  margin: 36px 0 14px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  text-transform: none;
}

h2.section-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

h2.section-title .hint {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 4px;
}

/* ---------- Cards / tables ---------- */

.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 14px;
}

th,
td {
  text-align: left;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr {
  transition: background 0.12s ease;
}

tbody tr:hover {
  background: var(--surface-2);
}

th {
  background: var(--surface-2);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding-top: 11px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--border-strong);
}

td .mono {
  color: var(--text-secondary);
}

td a {
  font-weight: 500;
}

/* ---------- State badges (pill) ---------- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 11px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  font-variant-numeric: tabular-nums;
}

.badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.badge.state-completed,
.badge.state-ok {
  color: var(--success);
  background: var(--success-bg);
  border-color: rgba(74, 111, 42, 0.2);
}

.badge.state-running,
.badge.state-executing,
.badge.state-validating,
.badge.state-awaiting_artifact,
.badge.state-awaiting_approval {
  color: var(--warning);
  background: var(--warning-bg);
  border-color: rgba(168, 108, 31, 0.22);
}

.badge.state-failed,
.badge.state-aborted {
  color: var(--danger);
  background: var(--danger-bg);
  border-color: rgba(163, 52, 25, 0.2);
}

.badge.state-pending,
.badge.state-created,
.badge.state-bound,
.badge.state-planning,
.badge.state-paused,
.badge.state-skipped {
  color: var(--info);
  background: var(--info-bg);
  border-color: rgba(74, 93, 140, 0.2);
}

.badge.state-running::before,
.badge.state-executing::before,
.badge.state-validating::before,
.badge.state-awaiting_artifact::before {
  animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.85); }
}

/* ---------- Buttons ---------- */

button,
.button {
  appearance: none;
  background: var(--surface-1);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: -0.005em;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

button:hover:not(:disabled),
.button:hover {
  background: var(--surface-hover);
  border-color: var(--text-faint);
  color: var(--text-primary);
  text-decoration: none;
}

button:active:not(:disabled) {
  transform: translateY(0.5px);
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--surface-1);
  font-weight: 500;
}

button.primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--surface-1);
}

button.danger {
  background: transparent;
  color: var(--danger);
  border-color: rgba(163, 52, 25, 0.32);
}

button.danger:hover:not(:disabled) {
  background: var(--danger-bg);
  border-color: var(--danger);
}

/* ---------- Forms ---------- */

label {
  display: block;
  margin: 0 0 6px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
}

label .hint {
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 6px;
  font-size: 12.5px;
}

input[type="text"],
input[type="number"],
textarea,
select {
  width: 100%;
  background: var(--surface-1);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 13px;
  font-family: inherit;
  font-size: 14px;
  line-height: 1.5;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-faint);
}

textarea {
  resize: vertical;
  min-height: 110px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2354514a' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.form-row {
  margin-bottom: 18px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 16px;
}

.action-bar {
  display: flex;
  gap: 8px;
  margin: 28px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.action-bar.no-top-border {
  border-top: none;
  padding-top: 0;
}

/* ---------- Meta panel (key/value lists) ---------- */

.meta-panel {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 0;
  box-shadow: var(--shadow-card);
}

.meta-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.meta-row:last-child {
  border-bottom: none;
}

.meta-row .key {
  color: var(--text-muted);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.meta-row .value {
  color: var(--text-primary);
  font-size: 14px;
  word-break: break-all;
}

.meta-row .value.mono {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-secondary);
}

.meta-row .value.dim {
  color: var(--text-muted);
}

/* ---------- Budget summary cards ---------- */

.budget-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.budget-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-card);
}

.budget-card .scope {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.budget-card .amount {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.budget-card .amount.warn { color: var(--warning); }
.budget-card .amount.over { color: var(--danger); }

.budget-card .cap {
  font-family: var(--font-sans);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 400;
  margin-left: 6px;
}

.budget-card .bar {
  height: 4px;
  background: var(--surface-3);
  border-radius: 2px;
  margin-top: 12px;
  overflow: hidden;
}

.budget-card .bar > div {
  height: 100%;
  background: var(--success);
  transition: width 0.3s ease;
}

.budget-card .bar.warn > div { background: var(--warning); }
.budget-card .bar.over > div { background: var(--danger); }

/* ---------- Event log (SSE) ---------- */

.events {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-height: 60vh;
  overflow-y: auto;
  padding: 8px 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  box-shadow: var(--shadow-card);
}

.event-line {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 14px;
  padding: 6px 18px;
  border-bottom: 1px solid transparent;
}

.event-line:hover {
  background: var(--surface-2);
}

.event-line .ts {
  color: var(--text-faint);
  font-size: 11.5px;
}

.event-line .body .type {
  color: var(--accent);
  font-weight: 500;
}

.event-line .body .payload {
  color: var(--text-muted);
  margin-left: 8px;
  font-size: 11.5px;
  word-break: break-all;
}

.event-line.run-completed .body .type { color: var(--success); }
.event-line.run-failed .body .type,
.event-line.run-aborted .body .type { color: var(--danger); }
.event-line.run-resumed .body .type { color: var(--warning); }

.events::-webkit-scrollbar {
  width: 10px;
}

.events::-webkit-scrollbar-track {
  background: transparent;
}

.events::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 5px;
  border: 2px solid var(--surface-1);
}

/* ---------- Empty / error states ---------- */

.empty {
  padding: 56px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

.empty .empty-icon {
  font-family: var(--font-serif);
  font-size: 30px;
  margin-bottom: 10px;
  opacity: 0.5;
  color: var(--accent);
}

.empty .cta {
  margin-top: 18px;
}

.error-banner {
  background: var(--danger-bg);
  border: 1px solid rgba(163, 52, 25, 0.28);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 16px;
  color: var(--danger);
  font-size: 13.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.error-banner::before {
  content: "!";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  background: var(--danger);
  color: var(--surface-1);
  border-radius: 50%;
  font-weight: 700;
  font-size: 11px;
  flex-shrink: 0;
  font-family: var(--font-sans);
}

/* ---------- Tag chip (per-role override input) ---------- */

.chips {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 14px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.chips:last-child {
  border-bottom: none;
}

.chips .role {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.chips .role .hint {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 400;
  margin-top: 2px;
}

.chips input {
  font-family: var(--font-mono);
  font-size: 12.5px;
}

/* ---------- Responsive ---------- */

@media (max-width: 720px) {
  main { padding: 24px 16px 40px; }
  header { padding: 16px 16px; }
  .page-title h2 { font-size: 24px; }
  .form-grid { grid-template-columns: 1fr; }
  .meta-row { grid-template-columns: 1fr; gap: 4px; padding: 12px 14px; }
  .event-line { grid-template-columns: 1fr; gap: 2px; }
  .chips { grid-template-columns: 1fr; gap: 6px; }
}

/* =================================================================
   v0.3 PR #8 — Conversation page
   ================================================================= */

.conversation-main {
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 80px);
  padding-bottom: 0;
}

.conv-topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.conv-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 600;
}

.conv-picker {
  flex: 1;
  min-width: 240px;
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
}

.conv-action-btn {
  padding: 6px 14px;
  font-size: 13px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.conv-action-btn:hover { filter: brightness(1.08); }

.conv-session-state {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  text-transform: lowercase;
  letter-spacing: 0.04em;
}

.conv-session-state.state-active {
  background: rgba(34,197,94,0.12);
  color: rgb(22,163,74);
}

.conv-session-state.state-ended {
  background: rgba(100,116,139,0.12);
  color: rgb(71,85,105);
}

.messages-thread {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  margin-bottom: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.conv-empty {
  color: var(--text-muted);
  text-align: center;
  padding: 40px 16px;
  font-size: 13px;
}

.msg-bubble {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.msg-bubble.role-user {
  align-self: flex-end;
  background: var(--accent);
  color: white;
}

.msg-bubble.role-assistant {
  align-self: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.msg-bubble.role-system {
  align-self: center;
  max-width: 90%;
  font-style: italic;
  font-size: 12.5px;
  background: rgba(245,158,11,0.08);
  border: 1px dashed rgba(245,158,11,0.4);
  color: rgb(120,53,15);
}

.msg-bubble.pending {
  opacity: 0.6;
  font-size: 20px;
  padding: 6px 14px;
}

.msg-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  opacity: 0.6;
  margin-bottom: 4px;
}

.msg-role {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.conv-input-bar {
  display: flex;
  gap: 8px;
  padding: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.conv-input-bar textarea {
  flex: 1;
  font-family: var(--font-body);
  font-size: 14px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  resize: vertical;
  min-height: 44px;
}

.conv-input-bar textarea:disabled {
  background: var(--bg);
  opacity: 0.5;
}

.conv-input-bar button {
  padding: 0 18px;
  font-size: 13px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.conv-input-bar button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}