/* ================================================================
   B.OCR Web - Responsive Tutorial & Guide Modal Stylesheet
   ================================================================ */

.tutorial-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: tutFadeIn 0.2s ease-out;
}

@keyframes tutFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.tutorial-modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-width: 860px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  animation: tutSlideUp 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes tutSlideUp {
  from { transform: translateY(14px) scale(0.98); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}

/* Modal Header */
.tut-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.tut-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tut-header-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.tut-title-wrap {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tut-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.tut-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tut-btn-close {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface-muted);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.tut-btn-close:hover {
  background: var(--surface-subtle);
  color: var(--text);
  border-color: var(--border-hover);
}

/* Modal Mode View Switcher */
.tut-view-switcher {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--surface-muted);
  border-bottom: 1px solid var(--border);
}

.tut-view-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.tut-view-tab:hover {
  color: var(--text);
  border-color: var(--border-hover);
}

.tut-view-tab.active {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
  font-weight: 700;
}

.tut-view-tab.active svg {
  color: #ffffff;
}

/* Modal Body: 2 Columns */
.tut-body {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 20px;
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

/* Left Column: Summary & Pro Tips */
.tut-col-summary {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.tut-summary-box {
  background: var(--surface-muted);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 14px;
}

.tut-summary-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-subtle);
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.tut-summary-text {
  font-size: 12.5px;
  color: var(--text);
  line-height: 1.55;
}

.tut-protips-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tut-protips-header {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--warning);
}

.tut-protips-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tut-protips-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.45;
}

.tut-protips-item::before {
  content: "•";
  color: var(--accent);
  font-weight: bold;
  font-size: 14px;
  line-height: 1;
}

.tut-privacy-note {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: 6px;
  padding: 8px 12px;
  margin-top: auto;
}

.tut-privacy-note svg {
  color: var(--success);
  flex-shrink: 0;
}

/* Right Column: Steps Timeline */
.tut-col-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tut-steps-header {
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
}

.tut-timeline {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tut-step-card {
  display: flex;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  position: relative;
  transition: border-color 0.15s ease;
}

.tut-step-card:hover {
  border-color: var(--border-hover);
}

.tut-step-num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.tut-step-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tut-step-title {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text);
}

.tut-step-desc {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Modal Footer */
.tut-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--surface-muted);
  border-top: 1px solid var(--border);
}

.tut-footer-hint {
  font-size: 11px;
  color: var(--text-subtle);
  font-family: 'JetBrains Mono', monospace;
}

/* Header Trigger Button */
.btn-header-tutorial {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 10px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-header-tutorial:hover {
  background: var(--surface-muted);
  border-color: var(--border-hover);
  color: var(--accent);
}

.btn-header-tutorial svg {
  color: var(--accent);
}

/* Responsive (Tablet & Mobile) */
@media (max-width: 900px) {
  .tut-body {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 16px;
  }
  .tutorial-modal {
    max-height: 94vh;
    border-radius: 8px;
  }
  .tut-footer {
    flex-direction: column;
    gap: 8px;
  }
  .tut-footer .btn {
    width: 100%;
  }
}