/* ═══════════════════════════════════════════════════════════
   Personas v2 — Upload Zone & Drop Area
   ═══════════════════════════════════════════════════════════ */

.upload-section {
  margin-top: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.7s;
}

.upload-zone {
  border: 1px dashed var(--border-hover);
  background: var(--surface);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition),
    box-shadow var(--transition);
  position: relative;
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-dim);
  box-shadow: 0 0 40px rgba(0, 255, 136, 0.06);
}

.upload-zone.drag-over {
  border-style: solid;
}

.upload-zone.has-file {
  border-style: solid;
  border-color: var(--accent);
}

.upload-icon {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 1rem;
  line-height: 1;
  opacity: 0.9;
}

.upload-title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.upload-desc {
  font-size: 0.7rem;
  color: var(--muted2);
  letter-spacing: 0.05em;
  max-width: 380px;
  margin: 0 auto 1.25rem;
  line-height: 1.7;
}

.upload-file-name {
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  margin-top: 0.75rem;
  word-break: break-all;
}

.upload-hint {
  font-size: 0.6rem;
  color: var(--muted);
  margin-top: 1.25rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* File input visually hidden but accessible */
#fileInput {
  position: absolute;
  width: 0.1px;
  height: 0.1px;
  opacity: 0;
  overflow: hidden;
  z-index: -1;
}

/* Parse status panel */
.parse-panel {
  margin-top: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.4rem;
}

.parse-status {
  font-size: 0.7rem;
  color: var(--text-secondary);
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.parse-detail {
  font-size: 0.6rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  margin-top: 0.75rem;
}

/* AI action panel */
.ai-actions {
  margin-top: 2.5rem;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 1.75rem;
}

.ai-actions-header {
  margin-bottom: 1.25rem;
}

.ai-actions-header .tag {
  font-size: 0.6rem;
  color: var(--accent);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.ai-actions-header h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.ai-actions-header p {
  font-size: 0.7rem;
  color: var(--muted2);
  margin-top: 0.4rem;
  line-height: 1.6;
}

.ai-btn-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.ai-btn-card {
  border: 1px solid var(--border);
  background: var(--bg);
  padding: 1.4rem;
  text-align: left;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition),
    box-shadow var(--transition);
  width: 100%;
}

.ai-btn-card:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
  box-shadow: 0 0 30px rgba(0, 255, 136, 0.06);
}

.ai-btn-card:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.ai-btn-card .ai-icon {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  color: var(--accent);
}

.ai-btn-card h4 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  color: var(--text);
}

.ai-btn-card p {
  font-size: 0.65rem;
  color: var(--muted2);
  line-height: 1.6;
  letter-spacing: 0.02em;
}

.ai-btn-card.gemini:hover {
  border-color: #8ab4f8;
  background: rgba(138, 180, 248, 0.06);
  box-shadow: 0 0 30px rgba(138, 180, 248, 0.06);
}

.ai-btn-card.gemini .ai-icon { color: #8ab4f8; }

/* ── How to get Discord data ── */
.howto-section {
  max-width: 720px;
  margin: 0 auto 1.5rem;
}

.howto-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.25rem 1.4rem 1.4rem;
}

.howto-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.9rem;
  font-weight: 700;
}

.howto-list {
  margin: 0 0 0.9rem 1.1rem;
  color: var(--muted2);
  font-size: 0.72rem;
  line-height: 1.75;
}

.howto-list li {
  margin-bottom: 0.45rem;
}

.howto-list strong {
  color: var(--text);
  font-weight: 700;
}

.howto-emph {
  color: var(--accent3);
  font-weight: 700;
}

.howto-note {
  font-size: 0.65rem;
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

.howto-note a {
  color: var(--accent);
}

.pipeline-steps {
  margin-top: 0.75rem;
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ── Subject username ── */
.username-section {
  max-width: 720px;
  margin: 0 auto 1.5rem;
}

.username-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.25rem 1.4rem;
}

.username-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.username-at {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 700;
}

.username-input {
  flex: 1;
  min-width: 0;
}

.username-input.invalid {
  border-color: var(--accent2);
}

.share-status {
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  margin: 0.5rem 0 1rem;
  min-height: 1.2em;
}

.share-status a {
  color: var(--accent);
}

.dim {
  color: var(--muted2);
}

@media (max-width: 600px) {
  .ai-btn-grid {
    grid-template-columns: 1fr;
  }

  .upload-zone {
    padding: 2rem 1.25rem;
  }
}