app/static/styles.css

:root {
  --bg: #f4f7ff;
  --bg-elevated: #eef3ff;
  --bg-card: #ffffff;
  --bg-card-soft: #f7f9ff;
  --border: #cdd8f3;
  --border-subtle: #deE6fb;
  --text: #18233f;
  --text-muted: #5f6f94;
  --accent: #5b6cff;
  --accent-hover: #4c5cf0;
  --accent-dim: rgba(91, 108, 255, 0.12);
  --success: #0aa972;
  --success-dim: rgba(10, 169, 114, 0.12);
  --warning: #d68b16;
  --warning-dim: rgba(214, 139, 22, 0.12);
  --error: #d93a5e;
  --error-dim: rgba(217, 58, 94, 0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 34px rgba(75, 95, 148, 0.14);
  --font: "Inter", system-ui, -apple-system, sans-serif;
}

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

body {
  font-family: var(--font);
  background: linear-gradient(160deg, #f9fbff 0%, #eef3ff 50%, #f4f7ff 100%);
  background-image:
    radial-gradient(ellipse 68% 50% at 10% -10%, rgba(91, 108, 255, 0.12), transparent 60%),
    radial-gradient(ellipse 58% 35% at 100% 100%, rgba(91, 108, 255, 0.08), transparent 70%);
  margin: 0;
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  letter-spacing: 0.01em;
}

/* Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 2rem;
  border-bottom: 1px solid rgba(95, 111, 148, 0.16);
  background: rgba(248, 251, 255, 0.95);
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-icon {
  font-size: 2rem;
  line-height: 1;
}

.brand h1 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-tagline {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.health-pills {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.pill.ok {
  border-color: rgba(62, 207, 142, 0.4);
  background: var(--success-dim);
  color: var(--success);
}

.pill.bad {
  border-color: rgba(245, 101, 101, 0.4);
  background: var(--error-dim);
  color: var(--error);
}

.pill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* Layout */
.app-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 1.25rem;
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.5rem 2rem 3rem;
}

.workspace {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  min-width: 0;
}

.panel {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.55)),
    var(--bg-card);
  border: 1px solid rgba(95, 111, 148, 0.16);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.panel-header {
  margin-bottom: 1.1rem;
}

.panel-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.panel-title {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
}

.run-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.run-title-row h2 {
  margin: 0;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.panel-desc {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Form */
.drop-zone {
  border: 1px dashed rgba(95, 111, 148, 0.35);
  border-radius: var(--radius);
  padding: 2rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s, box-shadow 0.2s;
  margin-bottom: 1rem;
  outline: none;
}

.drop-zone:hover,
.drop-zone:focus-visible,
.drop-zone.dragover {
  border-color: var(--accent);
  background: var(--accent-dim);
  box-shadow: inset 0 0 0 1px rgba(91, 108, 255, 0.24);
  transform: translateY(-1px);
}

.drop-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
}

.drop-title {
  margin: 0 0 0.25rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.drop-hint {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.file-name {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
  word-break: break-all;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.9rem;
}

.field-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.tooltip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--border);
  color: var(--text-muted);
  font-size: 0.65rem;
  cursor: help;
}

input[type="text"],
input[type="number"],
select {
  width: 100%;
  padding: 0.55rem 0.7rem;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text);
  background: #f8faff;
  border: 1px solid rgba(95, 111, 148, 0.25);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(91, 108, 255, 0.16);
  background: #ffffff;
}

.input-suffix {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.input-suffix input {
  flex: 1;
}

.input-suffix span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
}

#parallel-value {
  font-weight: 600;
  color: var(--accent);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.1rem;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: inherit;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s, transform 0.1s, box-shadow 0.2s, border-color 0.2s;
}

.btn:active:not(:disabled) {
  transform: scale(0.98);
}

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

.btn-primary {
  background: linear-gradient(135deg, #5b6cff 0%, #6f80ff 100%);
  color: #fff;
  box-shadow: 0 10px 20px rgba(91, 108, 255, 0.24);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #4c5cf0 0%, #6376ff 100%);
  box-shadow: 0 12px 24px rgba(91, 108, 255, 0.3);
}

.btn-secondary {
  background: #f3f6ff;
  color: var(--text);
  border: 1px solid rgba(95, 111, 148, 0.26);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-danger {
  background: var(--error-dim);
  color: var(--error);
  border: 1px solid rgba(217, 58, 94, 0.3);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(245, 101, 101, 0.25);
}

.btn-danger.btn-ghost {
  background: transparent;
}

.btn-ghost {
  background: #f3f6ff;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.35rem 0.6rem;
}

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

.btn-sm {
  font-size: 0.85rem;
  padding: 0.35rem 0.65rem;
}

.btn-block {
  width: 100%;
  margin-top: 0.25rem;
}

.btn-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Run history */
.run-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 220px;
  overflow-y: auto;
}

.run-list-empty {
  padding: 1.5rem 0.5rem;
  text-align: center;
  font-size: 0.85rem;
}

.run-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.run-item-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.run-delete-btn {
  padding: 0.2rem 0.45rem;
  font-size: 0.75rem;
  line-height: 1;
}

.run-item:hover {
  background: #eef3ff;
  border-color: rgba(91, 108, 255, 0.24);
  transform: translateY(-1px);
}

.run-item.active {
  background: linear-gradient(90deg, rgba(91, 108, 255, 0.16), rgba(91, 108, 255, 0.07));
  border-color: rgba(91, 108, 255, 0.32);
}

.run-item-info {
  flex: 1;
  min-width: 0;
}

.run-item-name {
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.run-item-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.1rem;
}

/* Status badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: capitalize;
  white-space: nowrap;
}

.badge-queued {
  background: var(--border);
  color: var(--text-muted);
}

.badge-running,
.badge-uploading,
.badge-processing,
.badge-downloading {
  background: var(--accent-dim);
  color: var(--accent);
}

.badge-completed,
.badge-succeeded {
  background: var(--success-dim);
  color: var(--success);
}

.badge-failed,
.badge-interrupted,
.badge-cancelled {
  background: var(--error-dim);
  color: var(--error);
}

/* Active run */
.run-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.meta-chip {
  font-size: 0.78rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
}

.meta-chip.muted {
  color: var(--text-muted);
}

/* Pipeline */
.pipeline {
  display: flex;
  align-items: center;
  margin-bottom: 1.25rem;
  padding: 0.75rem 0;
}

.pipeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
}

.step-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--border);
  border: 2px solid var(--border);
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.pipeline-step.active .step-dot {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-dim);
}

.pipeline-step.done .step-dot {
  background: var(--success);
  border-color: var(--success);
}

.step-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 500;
}

.pipeline-step.active .step-label,
.pipeline-step.done .step-label {
  color: var(--text);
}

.pipeline-line {
  flex: 1;
  height: 2px;
  background: var(--border);
  margin: 0 0.25rem;
  margin-bottom: 1.2rem;
  transition: background 0.3s;
}

.pipeline-line.done {
  background: var(--success);
}

/* Progress */
.progress-block {
  margin-bottom: 1rem;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  margin-bottom: 0.45rem;
}

.progress-bar {
  height: 10px;
  background: #e9efff;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid rgba(95, 111, 148, 0.16);
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #5b6cff 0%, #7863ff 50%, #4f98ff 100%);
  border-radius: 999px;
  transition: width 0.35s ease;
  will-change: width;
}

/* Alert */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.alert-error {
  background: var(--error-dim);
  border: 1px solid rgba(245, 101, 101, 0.3);
  color: var(--error);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

/* Estimates */
.estimate-panel {
  background: #f6f9ff;
  border: 1px solid rgba(95, 111, 148, 0.18);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  margin-bottom: 0.9rem;
}

.estimate-panel h3 {
  margin: 0 0 0.6rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.estimate-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.estimate-grid > div {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.estimate-label {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.estimate-grid span:last-child {
  font-size: 0.95rem;
  font-weight: 600;
}

.estimate-disclaimer {
  margin: 0.55rem 0 0;
  font-size: 0.72rem;
}

/* Video preview */
.video-preview {
  margin-bottom: 1rem;
}

.video-preview h3 {
  margin: 0 0 0.6rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.video-preview video {
  width: 100%;
  max-height: 360px;
  border-radius: var(--radius-sm);
  background: #000;
  border: 1px solid rgba(95, 111, 148, 0.22);
  box-shadow: 0 10px 28px rgba(43, 59, 102, 0.2);
}

/* Segments table */
.segments-details {
  margin-top: 0.5rem;
}

.segments-details summary {
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 0.5rem 0;
  user-select: none;
}

.segments-details summary .muted {
  font-weight: 400;
  margin-left: 0.5rem;
}

.table-wrap {
  overflow-x: auto;
  margin-top: 0.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

th,
td {
  border: 1px solid var(--border-subtle);
  padding: 0.45rem 0.6rem;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--bg-elevated);
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

td .badge {
  font-size: 0.68rem;
}

.prediction-id {
  font-family: ui-monospace, monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.error-cell {
  color: var(--error);
  font-size: 0.78rem;
  max-width: 200px;
  word-break: break-word;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 1000;
  pointer-events: none;
}

.toast {
  padding: 0.75rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(95, 111, 148, 0.24);
  box-shadow: var(--shadow);
  animation: slideIn 0.3s ease;
  pointer-events: auto;
  max-width: 360px;
}

.toast-success {
  border-color: rgba(62, 207, 142, 0.4);
}

.toast-error {
  border-color: rgba(245, 101, 101, 0.4);
}

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

.hidden {
  display: none !important;
}

.muted {
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .app-layout {
    grid-template-columns: 1fr;
    padding: 1rem;
  }

  .app-header {
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
  }

  .field-row {
    grid-template-columns: 1fr;
  }
}