.skill-upload-section {
  margin-top: 1.25rem;
  padding: 1.5rem 0 2.25rem;
  position: relative;
  z-index: 1;
}

section.hero {
  padding-bottom: 1.5rem;
}

.hero + .skill-upload-section {
  margin-top: 0;
  padding-top: 1.5rem;
  background: transparent;
}

.skill-upload-section + .problem {
  border-top: none;
}

.skill-upload-shell {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 18px;
  max-width: 980px;
  margin: 0 auto;
  padding: 30px;
  border-radius: 32px;
  border: 1px solid rgba(42, 52, 84, 0.88);
  background: var(--bg-surface);
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.24);
}

.skill-upload-copy h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.skill-upload-panel {
  display: grid;
  gap: 16px;
  width: 100%;
}

.skill-upload-config {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.skill-upload-field {
  display: grid;
  gap: 8px;
}

.skill-upload-field-full {
  grid-column: 1 / -1;
}

.skill-upload-field-label {
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 600;
}

.skill-upload-select,
.skill-upload-input {
  width: 100%;
  min-height: 48px;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  border: 1px solid rgba(42, 52, 84, 0.88);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.skill-upload-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 3rem;
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(214, 224, 255, 0.9) 50%),
    linear-gradient(135deg, rgba(214, 224, 255, 0.9) 50%, transparent 50%);
  background-position:
    calc(100% - 20px) calc(50% - 3px),
    calc(100% - 14px) calc(50% - 3px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

.skill-upload-select:focus,
.skill-upload-input:focus {
  outline: none;
  border-color: rgba(110, 231, 183, 0.48);
  box-shadow: 0 0 0 3px rgba(110, 231, 183, 0.12);
}

.skill-upload-select option {
  color: #0b0f18;
}

.skill-upload-input::placeholder {
  color: var(--text-dim);
}

.skill-upload-dropzone,
.skill-upload-result {
  width: 100%;
  padding: 18px 20px;
  border-radius: 24px;
  border: 1px solid rgba(42, 52, 84, 0.88);
  background: rgba(255, 255, 255, 0.03);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.16);
}

.skill-upload-dropzone {
  position: relative;
  display: grid;
  gap: 10px;
  min-height: 184px;
  justify-items: center;
  align-content: center;
  text-align: center;
  border-style: dashed;
  border-color: rgba(110, 231, 183, 0.3);
  background: rgba(110, 231, 183, 0.06);
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.skill-upload-dropzone:hover,
.skill-upload-dropzone.is-dragover {
  transform: translateY(-1px);
  border-color: rgba(110, 231, 183, 0.48);
  background: rgba(110, 231, 183, 0.1);
}

.skill-upload-dropzone.is-disabled {
  cursor: not-allowed;
  opacity: 0.72;
  transform: none;
}

.skill-upload-dropzone.is-disabled:hover {
  transform: none;
  border-color: rgba(42, 52, 84, 0.88);
  background: rgba(255, 255, 255, 0.03);
}

.skill-upload-dropzone strong {
  color: var(--text);
  font-size: 1.05rem;
}

.skill-upload-dropzone span,
.skill-upload-result p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.7;
}

.skill-upload-dropzone input {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}

.skill-upload-actions,
.skill-upload-result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.skill-upload-button,
.skill-upload-result-link,
.skill-history-link,
.skill-history-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.3rem;
  border-radius: 14px;
  border: 1px solid rgba(42, 52, 84, 0.88);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.skill-upload-actions .skill-upload-button {
  min-width: 180px;
}

.skill-upload-button:hover,
.skill-upload-result-link:hover,
.skill-history-link:hover,
.skill-history-action:hover {
  border-color: rgba(110, 231, 183, 0.34);
  background: rgba(110, 231, 183, 0.08);
}

.skill-upload-button[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
}

.skill-upload-button-primary,
.skill-upload-result-link-primary,
.skill-history-action-primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--mint), #96f2d7);
  color: #04120d;
}

.skill-upload-button-primary:hover,
.skill-upload-result-link-primary:hover,
.skill-history-action-primary:hover {
  background: linear-gradient(135deg, #82f1c5, #baf7e3);
  color: #04120d;
}

.skill-upload-result {
  display: grid;
  gap: 12px;
}

.skill-upload-result a {
  font-weight: 600;
}

.skill-upload-result-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.skill-upload-result strong {
  color: var(--text);
  font-size: 1rem;
}

.skill-upload-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(110, 231, 183, 0.18);
  border-top-color: var(--mint);
  border-radius: 999px;
  animation: skill-upload-spin 0.8s linear infinite;
  flex: 0 0 auto;
}

.skill-upload-spinner[hidden] {
  display: none;
}

@keyframes skill-upload-spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.skill-upload-result.is-loading {
  border-color: rgba(251, 191, 36, 0.28);
  background: rgba(251, 191, 36, 0.08);
}

.skill-upload-result.is-success {
  border-color: rgba(110, 231, 183, 0.28);
  background: rgba(110, 231, 183, 0.08);
}

.skill-upload-result.is-error {
  border-color: rgba(251, 113, 133, 0.32);
  background: rgba(251, 113, 133, 0.08);
}

.skill-history-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.skill-history-list {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.skill-history-card {
  display: grid;
  gap: 14px;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid rgba(42, 52, 84, 0.88);
  background: rgba(255, 255, 255, 0.02);
}

.skill-history-row,
.skill-history-meta,
.skill-history-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  align-items: center;
}

.skill-history-row {
  justify-content: space-between;
}

.skill-history-name {
  font-family: var(--font-display);
  font-size: 1.08rem;
  color: var(--text);
  word-break: break-word;
}

.skill-history-date,
.skill-history-size,
.skill-history-error {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.skill-history-error {
  color: #fda4af;
}

.skill-history-status {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(42, 52, 84, 0.88);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
}

.skill-history-status.is-queued,
.skill-history-status.is-processing {
  border-color: rgba(251, 191, 36, 0.28);
  background: rgba(251, 191, 36, 0.08);
  color: #fcd34d;
}

.skill-history-status.is-completed {
  border-color: rgba(110, 231, 183, 0.28);
  background: rgba(110, 231, 183, 0.08);
  color: var(--mint);
}

.skill-history-status.is-failed {
  border-color: rgba(251, 113, 133, 0.32);
  background: rgba(251, 113, 133, 0.08);
  color: #fda4af;
}

html[data-theme='light'] .skill-upload-shell,
html[data-theme='light'] .skill-upload-result,
html[data-theme='light'] .skill-history-card {
  background: rgba(255, 255, 255, 0.94);
  border-color: rgba(184, 197, 214, 0.9);
  box-shadow: 0 20px 50px rgba(148, 163, 184, 0.16);
}

html[data-theme='light'] .hero + .skill-upload-section {
  background:
    radial-gradient(circle at top right, rgba(15, 157, 106, 0.12), transparent 32%),
    radial-gradient(circle at left center, rgba(79, 70, 229, 0.1), transparent 26%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(239, 245, 252, 0.94));
}

html[data-theme='light'] .skill-upload-dropzone {
  background: rgba(15, 157, 106, 0.06);
  border-color: rgba(15, 157, 106, 0.22);
}

html[data-theme='light'] .skill-upload-select,
html[data-theme='light'] .skill-upload-input {
  background: rgba(255, 255, 255, 0.94);
  border-color: rgba(184, 197, 214, 0.9);
  color: #0f172a;
}

html[data-theme='light'] .skill-upload-select {
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(71, 85, 105, 0.9) 50%),
    linear-gradient(135deg, rgba(71, 85, 105, 0.9) 50%, transparent 50%);
}

html[data-theme='light'] .skill-upload-input::placeholder {
  color: #64748b;
}

html[data-theme='light'] .skill-upload-dropzone:hover,
html[data-theme='light'] .skill-upload-dropzone.is-dragover,
html[data-theme='light'] .skill-upload-button:hover,
html[data-theme='light'] .skill-upload-result-link:hover,
html[data-theme='light'] .skill-history-link:hover,
html[data-theme='light'] .skill-history-action:hover {
  background: rgba(15, 157, 106, 0.08);
}

html[data-theme='light'] .skill-upload-dropzone.is-disabled:hover {
  background: rgba(15, 157, 106, 0.06);
  border-color: rgba(15, 157, 106, 0.22);
}

html[data-theme='light'] .skill-upload-result.is-loading {
  background: rgba(251, 191, 36, 0.12);
}

html[data-theme='light'] .skill-upload-result.is-success {
  background: rgba(15, 157, 106, 0.08);
}

html[data-theme='light'] .skill-upload-result.is-error {
  background: rgba(251, 113, 133, 0.1);
}

html[data-theme='light'] .skill-history-status {
  background: rgba(15, 23, 42, 0.04);
  border-color: rgba(184, 197, 214, 0.9);
}

@media (max-width: 960px) {
  section.hero {
    padding-bottom: 1.25rem;
  }

  .hero + .skill-upload-section {
    margin-top: 0;
    padding-top: 1.25rem;
  }

  .skill-upload-shell {
    padding: 24px;
  }
}

@media (max-width: 640px) {
  .skill-upload-section {
    padding: 1rem 0 1.75rem;
  }

  section.hero {
    padding-bottom: 1rem;
  }

  .hero + .skill-upload-section {
    margin-top: 0;
    padding-top: 1rem;
  }

  .skill-upload-shell,
  .skill-upload-panel {
    padding: 20px;
  }

  .skill-upload-config {
    grid-template-columns: 1fr;
  }

  .skill-upload-actions,
  .skill-upload-result-actions,
  .skill-history-actions {
    display: grid;
  }

  .skill-upload-button,
  .skill-upload-result-link,
  .skill-history-link,
  .skill-history-action {
    width: 100%;
  }

  .skill-upload-actions .skill-upload-button {
    min-width: 0;
  }
}