/* ============================================================
   SPRINT 18 — SUPPLIER NEGOTIATION GUIDE
   ============================================================ */
.tool-nav-row{
  margin-top: 3rem;
  margin-bottom: 1rem;
}
/* ── Header ── */
.s18-header {
  text-align: center;
  margin-bottom: 1.5rem;
}
.s18-header-icon {
  font-size: 3rem;
  margin-bottom: .5rem;
}
.s18-header-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: .3rem;
}
.s18-header-desc {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── Tabs ── */
.s18-tabs {
  display: flex;
  gap: .4rem;
  margin-bottom: 1.2rem;
  overflow-x: auto;
  padding-bottom: 2px;
}
.s18-tab {
  flex-shrink: 0;
  padding: .5rem 1rem;
  border-radius: 20px;
  border: 1.5px solid rgba(200,169,110,.25);
  background: rgba(200,169,110,.07);
  color: var(--text-muted);
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
}
.s18-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #000;
}
.s18-tab-content { display: none; }
.s18-tab-content.active { display: block; }

/* ── Stage Cards ── */
.s18-stage-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: .8rem;
  overflow: hidden;
  transition: border-color .2s;
}
.s18-stage-card:hover { border-color: var(--accent); }

.s18-stage-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 1rem;
  cursor: pointer;
  gap: .5rem;
}
.s18-stage-left {
  display: flex;
  align-items: flex-start;
  gap: .8rem;
  flex: 1;
}
.s18-stage-num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  font-size: .75rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.s18-stage-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}
.s18-stage-title {
  font-size: .95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: .2rem;
}
.s18-stage-desc {
  font-size: .78rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.s18-stage-arrow {
  font-size: .8rem;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform .2s;
  margin-top: 4px;
}
.s18-stage-body {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--border);
}
.s18-stage-body.hidden { display: none; }

.s18-tips-list {
  list-style: none;
  padding: .8rem 0 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: .6rem;
}
.s18-tip-item {
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  font-size: .82rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.s18-tip-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 5px;
}

/* ── Tactics Grid ── */
.s18-tactics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .8rem;
}
@media(max-width:500px){ .s18-tactics-grid { grid-template-columns: 1fr; } }

.s18-tactic-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  transition: border-color .2s, transform .2s;
}
.s18-tactic-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.s18-tactic-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: .5rem;
}
.s18-tactic-icon { font-size: 1.5rem; }
.s18-tactic-tag {
  font-size: .65rem;
  font-weight: 700;
  padding: .2rem .5rem;
  border-radius: 20px;
}
.s18-tactic-title {
  font-size: .9rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: .4rem;
}
.s18-tactic-desc {
  font-size: .78rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: .6rem;
}
.s18-tactic-phrase {
  font-size: .75rem;
  color: var(--accent);
  background: rgba(200,169,110,.1);
  border: 1px solid rgba(200,169,110,.2);
  border-radius: 8px;
  padding: .5rem .7rem;
  line-height: 1.4;
  font-style: italic;
}

/* ── Scripts ── */
.s18-script-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: .8rem;
  transition: border-color .2s;
}
.s18-script-card:hover { border-color: var(--accent); }
.s18-script-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: .7rem;
}
.s18-script-title {
  font-size: .9rem;
  font-weight: 700;
  color: var(--text);
}
.s18-copy-btn {
  background: rgba(200,169,110,.12);
  border: 1px solid rgba(200,169,110,.3);
  color: var(--accent);
  border-radius: 8px;
  padding: .3rem .7rem;
  font-size: .75rem;
  cursor: pointer;
  transition: all .2s;
  font-family: inherit;
}
.s18-copy-btn:hover {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}
.s18-script-text {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .8rem;
  font-size: .78rem;
  color: var(--text-muted);
  line-height: 1.7;
  white-space: pre-wrap;
  font-family: inherit;
  direction: rtl;
  margin: 0 0 .5rem;
}
.s18-script-note {
  font-size: .72rem;
  color: var(--warning);
  background: rgba(255,193,7,.06);
  border: 1px solid rgba(255,193,7,.15);
  border-radius: 6px;
  padding: .4rem .6rem;
}

/* ── Checklist ── */
.s18-checklist-progress {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1rem;
}
.s18-cl-prog-top {
  display: flex;
  justify-content: space-between;
  font-size: .82rem;
  color: var(--text-muted);
  margin-bottom: .4rem;
}
.s18-cl-pct {
  font-weight: 700;
  color: var(--accent);
}
.s18-cl-prog-bar {
  height: 7px;
  background: rgba(255,255,255,.08);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: .4rem;
}
.s18-cl-prog-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #e8c97e);
  border-radius: 4px;
  transition: width .4s ease;
}
.s18-cl-count {
  font-size: .75rem;
  color: var(--text-muted);
}
.s18-cl-phase {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .8rem;
  margin-bottom: .7rem;
}
.s18-cl-phase-title {
  font-size: .75rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: .6rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.s18-cl-item {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .4rem 0;
  cursor: pointer;
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.s18-cl-item:last-child { border-bottom: none; }
.s18-cl-item input[type=checkbox] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  flex-shrink: 0;
  cursor: pointer;
}
.s18-cl-text {
  font-size: .82rem;
  color: var(--text-muted);
  transition: color .2s;
}
.s18-cl-item.done .s18-cl-text {
  text-decoration: line-through;
  color: var(--success);
  opacity: .7;
}
.s18-cl-complete {
  text-align: center;
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.3);
  color: var(--success);
  border-radius: 10px;
  padding: 1rem;
  font-size: .9rem;
  font-weight: 600;
  margin-top: .5rem;
}