@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600;700&family=Share+Tech+Mono&display=swap');
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.css');

:root {
  --bg: #04080f;
  --panel: #0a121e;
  --border: #162a45;

  --accent: #00d2ff;
  --accent2: #ffd700;
  --accent3: #ff00c8;

  --warn: #ffb703;
  --danger: #ff0055;
  --success: #00ffcc;

  --text: #e1f5fe;
  --muted: #708898;

  --font-mono: 'Share Tech Mono', monospace;
  --font-ui: 'Rajdhani', 'Pretendard', sans-serif;
  --base: 1rem;

  /* State colors */
  --c-pending: #1e3a5f;
  --c-active: var(--accent2);
  --c-success: var(--success);
  --c-error: var(--danger);
  --c-skip: var(--muted);

  --radius-sm: 4px;
  --radius-md: 8px;
  --panel-glow: inset 0 0 40px rgba(0, 210, 255, 0.03);
  --panel-shadow: 0 4px 24px rgba(0, 0, 0, 0.6);
}

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

html, body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: var(--base);
  line-height: 1.5;
}

/* Subtle scanline overlay on body */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 210, 255, 0.012) 2px,
    rgba(0, 210, 255, 0.012) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--accent);
  background: rgba(0, 210, 255, 0.08);
  padding: 1px 6px;
  border-radius: 3px;
}

pre {
  font-family: var(--font-mono);
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 12px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-size: 0.82rem;
  color: var(--text);
}

/* ============ Layout ============ */

.page-header {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 0;
  border-bottom: 1px solid var(--border);
  padding-bottom: 20px;
  position: relative;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 24px;
  width: 120px; height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.header-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 6px;
}

.header-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: rgba(0, 210, 255, 0.1);
  border: 1px solid rgba(0, 210, 255, 0.25);
  padding: 2px 8px;
  border-radius: 2px;
  text-transform: uppercase;
}

.page-header h1 {
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
}

.subtitle {
  color: var(--muted);
  font-size: 0.9rem;
  font-family: var(--font-ui);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 24px 48px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ============ Panel Base ============ */

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--panel-shadow), var(--panel-glow);
  position: relative;
  overflow: hidden;
}

.panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 210, 255, 0.3), transparent);
}

.panel-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--muted);
  text-transform: uppercase;
  padding: 10px 16px 0;
}

/* ============ Input Panel ============ */

.input-panel {
  padding: 16px;
}

.url-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

#url-input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.4);
  color: var(--accent);
  caret-color: var(--accent);
  transition: border-color 0.15s, box-shadow 0.15s;
}

#url-input::placeholder { color: var(--muted); }

#url-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(0, 210, 255, 0.15), 0 0 12px rgba(0, 210, 255, 0.08);
}

.btn {
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #04080f;
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(0, 210, 255, 0.3);
}

.btn-primary:hover:not(:disabled) {
  background: #33dbff;
  box-shadow: 0 0 20px rgba(0, 210, 255, 0.5);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--muted);
  color: var(--text);
}

.options-row {
  display: flex;
  gap: 20px;
  align-items: center;
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--muted);
  flex-wrap: wrap;
}

.check-label, .timeout-label {
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  user-select: none;
  transition: color 0.15s;
}

.check-label:hover { color: var(--text); }

.check-label input[type="checkbox"] {
  appearance: none;
  width: 14px; height: 14px;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
  position: relative;
  transition: all 0.15s;
}

.check-label input[type="checkbox"]:checked {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 6px rgba(0, 210, 255, 0.5);
}

.check-label input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: -2px; left: 1px;
  font-size: 10px;
  color: #04080f;
  font-weight: 700;
}

#timeout-input {
  width: 72px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(0,0,0,0.4);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-align: right;
}

#timeout-input:focus {
  outline: none;
  border-color: var(--accent);
}

.mock-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--accent3);
  background: rgba(255, 0, 200, 0.12);
  border: 1px solid rgba(255, 0, 200, 0.3);
  padding: 1px 7px;
  border-radius: 2px;
  text-transform: uppercase;
  animation: blink-badge 2s step-end infinite;
}

@keyframes blink-badge {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ============ Headers Editor ============ */

.headers-section {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.headers-section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 10px;
  background: rgba(0, 0, 0, 0.25);
  gap: 10px;
}

.headers-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--muted);
  font-family: inherit;
  padding: 0;
  transition: color 0.15s;
  flex: 1;
}

.headers-toggle:hover { color: var(--text); }

.headers-toggle-icon {
  font-size: 0.6rem;
  transition: transform 0.2s;
  color: var(--muted);
  display: inline-block;
}

.headers-toggle[aria-expanded="true"] .headers-toggle-icon {
  transform: rotate(90deg);
}

.headers-count {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  background: rgba(0, 210, 255, 0.12);
  color: var(--accent);
  border: 1px solid rgba(0, 210, 255, 0.2);
  border-radius: 10px;
  padding: 0 6px;
  min-width: 18px;
  text-align: center;
}

.headers-body {
  padding: 10px 12px 12px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0;
}

.headers-body[hidden] { display: none; }

/* Groups */
.headers-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.headers-group-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 2px;
}

.headers-group-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2px;
}

.headers-divider {
  height: 1px;
  background: var(--border);
  margin: 10px 0;
}

/* Default (common) header rows */
.default-headers-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.default-header-row {
  display: grid;
  grid-template-columns: auto 200px 1fr;
  gap: 8px;
  align-items: center;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
}

.default-header-row:hover {
  background: rgba(0, 210, 255, 0.04);
}

.dh-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
  min-width: 0;
}

.dh-check {
  appearance: none;
  width: 13px;
  height: 13px;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: all 0.15s;
}

.dh-check:checked {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 5px rgba(0, 210, 255, 0.4);
}

.dh-check:checked::after {
  content: '✓';
  position: absolute;
  top: -2px; left: 1px;
  font-size: 15px;
  color: #04080f;
  font-weight: 700;
}

.dh-key {
  font-family: var(--font-mono);
  font-size: 0.77rem;
  color: var(--accent2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.default-header-row.is-disabled .dh-key {
  color: var(--muted);
  opacity: 0.5;
}

.dh-forbidden-badge {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  color: var(--warn);
  background: rgba(255, 183, 3, 0.1);
  border: 1px solid rgba(255, 183, 3, 0.25);
  padding: 0 4px;
  border-radius: 2px;
  text-transform: uppercase;
  flex-shrink: 0;
}

.dh-value {
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 0.77rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  transition: border-color 0.15s, opacity 0.15s;
  min-width: 0;
  width: 100%;
}

.dh-value:focus {
  outline: none;
  border-color: var(--accent);
}

.dh-value::placeholder { color: var(--muted); opacity: 0.5; }

.default-header-row.is-disabled .dh-value {
  opacity: 0.3;
  pointer-events: none;
}

/* Custom header rows */
.headers-list {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.headers-empty {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  padding: 6px 0 2px;
  opacity: 0.7;
}

.header-row {
  display: grid;
  grid-template-columns: 180px 1fr auto;
  gap: 6px;
  align-items: center;
}

.header-key,
.header-value {
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  transition: border-color 0.15s;
  min-width: 0;
}

.header-key { color: var(--accent2); }

.header-key:focus,
.header-value:focus {
  outline: none;
  border-color: var(--accent);
}

.header-key::placeholder,
.header-value::placeholder { color: var(--muted); opacity: 0.5; }

.btn-add-header {
  background: transparent;
  border: 1px solid rgba(0, 210, 255, 0.25);
  border-radius: var(--radius-sm);
  color: var(--accent);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 3px 10px;
  transition: all 0.15s;
}

.btn-add-header:hover {
  background: rgba(0, 210, 255, 0.08);
  border-color: var(--accent);
}

.header-del {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--muted);
  cursor: pointer;
  font-size: 0.72rem;
  padding: 3px 8px;
  font-family: var(--font-mono);
  line-height: 1;
  transition: all 0.15s;
  flex-shrink: 0;
}

.header-del:hover {
  border-color: var(--danger);
  color: var(--danger);
  background: rgba(255, 0, 85, 0.08);
}

/* ============ Pipeline Track (Horizontal) ============ */

.pipeline-panel {
  padding: 0;
}

.pipeline-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px 0;
}

.pipeline-scroll {
  overflow-x: auto;
  overflow-y: visible;
  padding: 20px 16px 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.pipeline-scroll::-webkit-scrollbar { height: 4px; }
.pipeline-scroll::-webkit-scrollbar-track { background: transparent; }
.pipeline-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.pipeline-track {
  list-style: none;
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  min-width: max-content;
  gap: 0;
}

/* Each step */
.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 96px;
  flex: 1;
  cursor: pointer;
  position: relative;
}

/* Dot + connectors row */
.step-track-row {
  display: flex;
  align-items: center;
  width: 100%;
  position: relative;
}

.step-line {
  flex: 1;
  height: 2px;
  background: var(--border);
  transition: background 0.3s;
}

.step:first-child .step-line--left,
.step:last-child .step-line--right {
  visibility: hidden;
}

.step[data-state="success"] .step-line--left {
  background: var(--success);
  box-shadow: 0 0 6px rgba(0, 255, 204, 0.4);
}

.step[data-state="error"] .step-line--left {
  background: var(--danger);
}

.step[data-state="skipped"] .step-line--left {
  background: var(--muted);
}

/* Step dot circle */
.step-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--c-pending);
  background: var(--panel);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--muted);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  transition: all 0.25s;
}

.step[data-state="active"] .step-dot {
  border-color: var(--c-active);
  color: var(--c-active);
  background: rgba(255, 215, 0, 0.1);
  animation: pulse-active 1.1s ease-in-out infinite;
}

.step[data-state="success"] .step-dot {
  border-color: var(--success);
  background: rgba(0, 255, 204, 0.1);
  color: var(--success);
  box-shadow: 0 0 10px rgba(0, 255, 204, 0.4);
}

.step[data-state="error"] .step-dot {
  border-color: var(--danger);
  background: rgba(255, 0, 85, 0.1);
  color: var(--danger);
  box-shadow: 0 0 10px rgba(255, 0, 85, 0.4);
}

.step[data-state="skipped"] .step-dot {
  border-color: var(--muted);
  color: var(--muted);
  opacity: 0.6;
}

.step.is-selected .step-dot {
  box-shadow: 0 0 0 3px rgba(0, 210, 255, 0.3), 0 0 14px rgba(0, 210, 255, 0.3);
}

@keyframes pulse-active {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 215, 0, 0.6); }
  50% { box-shadow: 0 0 0 8px rgba(255, 215, 0, 0); }
}

/* Step label + meta */
.step-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 8px;
  gap: 2px;
  text-align: center;
  padding: 0 4px;
}

.step-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--text);
  white-space: nowrap;
}

.step-meta {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted);
  white-space: nowrap;
  transition: color 0.2s;
}

.step[data-state="active"] .step-meta { color: var(--c-active); }
.step[data-state="success"] .step-meta { color: var(--success); }
.step[data-state="error"] .step-meta { color: var(--danger); }
.step[data-state="skipped"] .step-meta { color: var(--muted); opacity: 0.6; }

/* Hidden detail storage */
[data-role="detail-wrap"] { display: none; }

/* ============ Step Detail Global Panel ============ */

.step-detail-panel {
  padding: 0;
  border-color: rgba(0, 210, 255, 0.2);
  transition: all 0.2s;
}

.step-detail-panel[hidden] { display: none; }

.sdp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
}

.sdp-step-id {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
}

.sdp-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-left: 10px;
}

.sdp-title-group {
  display: flex;
  align-items: center;
  gap: 0;
}

.sdp-close {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 2px 8px;
  transition: all 0.15s;
  font-family: var(--font-mono);
  line-height: 1.4;
}

.sdp-close:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.sdp-body {
  padding: 14px 16px;
  min-height: 60px;
}

/* KV Table */
.kv-table {
  border-collapse: collapse;
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.kv-table th, .kv-table td {
  text-align: left;
  padding: 5px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  word-break: break-all;
}

.kv-table th {
  color: var(--muted);
  width: 32%;
  font-weight: 400;
  letter-spacing: 0.05em;
}

.kv-table td { color: var(--text); }

.kv-table tr:last-child th,
.kv-table tr:last-child td { border-bottom: none; }

/* Progress bar */
.progress-bar {
  --pct: 0%;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 8px;
}

.progress-bar::before {
  content: '';
  display: block;
  height: 100%;
  width: var(--pct);
  background: linear-gradient(90deg, var(--accent), var(--success));
  box-shadow: 0 0 8px rgba(0, 210, 255, 0.5);
  transition: width 0.15s linear;
}

/* ============ Preview Panel ============ */

.preview-panel {
  padding: 0;
}

.preview-panel-header {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
}

.preview-host {
  position: relative;
  width: 100%;
  min-height: 200px;
  background: rgba(0, 0, 0, 0.3);
  overflow: hidden;
}

#preview-frame {
  width: 100%;
  height: 340px;
  border: 0;
  display: none;
  background: #fff;
}

#preview-frame.visible { display: block; }

.preview-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-align: center;
  padding: 16px;
  letter-spacing: 0.05em;
}

/* ============ Error Panel ============ */

.error-panel {
  padding: 16px;
  border-color: rgba(255, 0, 85, 0.4);
  border-left: 3px solid var(--danger);
  box-shadow: var(--panel-shadow), 0 0 20px rgba(255, 0, 85, 0.1);
}

.error-panel[hidden] { display: none; }

.error-panel h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--danger);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
  text-shadow: 0 0 10px rgba(255, 0, 85, 0.4);
}

.error-reason {
  margin-bottom: 12px;
  white-space: pre-wrap;
  font-size: 0.88rem;
  color: var(--text);
}

.error-hints h3 {
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 6px;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.error-hints ul {
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.85rem;
}

.error-hints li { margin-bottom: 4px; }

.error-raw {
  margin-top: 12px;
  font-size: 0.82rem;
}

.error-raw summary {
  cursor: pointer;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ============ Footer ============ */

.page-footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 32px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* ============ Responsive ============ */

@media (max-width: 640px) {
  .url-row { flex-wrap: wrap; }
  #url-input { flex-basis: 100%; }
  .btn { flex: 1 1 auto; }
  #preview-frame { height: 240px; }
  .step { min-width: 72px; }
  .step-label { font-size: 0.66rem; }
}