/* ============================================================
   VPNDK Design System — tutorial.css
   Tutorial page-specific styles: hero, step sections,
   client cards, plan brief, verify list
   ============================================================ */

/* ================= Tutorial Hero ================= */
.tutorial-hero {
  padding-top: 56px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--c-line);
}

.tutorial-hero .sec-kicker {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 11.5px;
  letter-spacing: .22em;
  color: var(--c-acc);
  font-weight: 700;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.tutorial-hero h1 {
  margin-bottom: 16px;
}

.tutorial-hero .sec-desc {
  max-width: 720px;
  margin-bottom: 24px;
}

.tutorial-hero .callout {
  max-width: 720px;
}

/* ================= Step Nav ================= */
.toc-tabs {
  margin-top: 32px;
}

/* ================= Step Sections ================= */
.tutorial-step {
  padding: 48px 0;
  border-bottom: 1px solid var(--c-line);
}

.tutorial-step:last-child {
  border-bottom: none;
  padding-bottom: 72px;
}

.step-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 20px;
}

.step-num {
  font-family: var(--ff-mono);
  font-size: 14px;
  color: var(--c-acc);
  font-weight: 700;
  flex: none;
  letter-spacing: .08em;
}

.step-head h2 {
  margin: 0;
  font-size: clamp(22px, 2.5vw, 30px);
  font-weight: 900;
  line-height: 1.25;
}

.step-body p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-dim);
  margin-bottom: 14px;
  max-width: 760px;
}

.step-body p strong {
  color: var(--c-ink);
  font-weight: 700;
}

.step-body .cta-row {
  margin-top: 24px;
  margin-bottom: 0;
}

/* ================= Plan Brief ================= */
.plan-brief {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  max-width: 760px;
}

.plan-brief li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-dim);
  padding: 8px 0;
  border-bottom: 1px dashed var(--c-line);
}

.plan-brief li:last-child {
  border-bottom: none;
}

.plan-brief li strong {
  color: var(--c-acc);
  font-family: var(--ff-mono);
  font-weight: 700;
  font-size: 15px;
  flex: none;
  min-width: 76px;
}

/* ================= Subscription Code Block ================= */
.step-body pre {
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: var(--rad-s);
  padding: 14px 18px;
  overflow-x: auto;
  margin: 0 0 18px;
  max-width: 760px;
}

.step-body pre code {
  font-family: var(--ff-mono);
  font-size: 13px;
  color: var(--c-acc);
  white-space: pre;
}

/* ================= Client Cards ================= */
.client-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 20px 0 18px;
}

.client-card {
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: var(--rad-m);
  padding: 22px;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.client-card:hover {
  border-color: var(--tint-acc-bd);
}

.client-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--c-ink);
}

.client-card h3 svg {
  color: var(--c-acc);
  flex: none;
}

.client-card p {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-dim);
  margin-bottom: 14px;
  flex-grow: 1;
}

.client-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--c-acc);
  padding: 8px 14px;
  border: 1px solid var(--tint-acc-bd);
  border-radius: var(--rad-s);
  align-self: flex-start;
  transition: background .15s;
  min-height: 36px;
}

.client-link:hover {
  background: var(--tint-acc);
}

.client-link svg {
  flex: none;
}

/* ================= Verify List ================= */
.verify-list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  max-width: 760px;
}

.verify-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-dim);
  margin-bottom: 10px;
}

.verify-list .tick {
  margin-top: 4px;
  flex: none;
}

/* ================= Responsive ================= */
@media (max-width: 768px) {
  .tutorial-hero {
    padding-top: 40px;
    padding-bottom: 32px;
  }
  .tutorial-step {
    padding: 40px 0;
  }
  .client-grid {
    grid-template-columns: 1fr;
  }
  .plan-brief li {
    flex-wrap: wrap;
  }
  .plan-brief li strong {
    min-width: 0;
  }
}