/* =============================================
   Lesson 03 — Smart Contract Explainer
   Unique component styles
   ============================================= */

/* ANIMATED CODE LINES BACKGROUND */
.code-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  opacity: 0.06;
}
.code-line {
  position: absolute;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--blue-light);
  white-space: nowrap;
  animation: codeDrift linear infinite;
}

@keyframes codeDrift {
  from { transform: translateX(-100%); }
  to   { transform: translateX(110vw); }
}

/* HERO VISUAL — Contract pill */
.hero-visual {
  margin-top: 56px;
  position: relative;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.8s forwards;
}

.contract-pill {
  display: inline-flex;
  align-items: center;
  gap: 0;
  background: var(--navy-mid);
  border: 1px solid rgba(3,136,166,0.3);
  border-radius: 60px;
  overflow: hidden;
  box-shadow: 0 0 60px rgba(3,136,166,0.12);
}

.pill-part {
  padding: 14px 28px;
  font-family: 'DM Mono', monospace;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.pill-part.input {
  background: rgba(255,154,60,0.08);
  border-right: 1px solid rgba(3,136,166,0.2);
  color: var(--orange);
}

.pill-arrow {
  padding: 14px 16px;
  color: var(--blue);
  font-size: 1rem;
}

.pill-part.contract {
  background: var(--blue-dim);
  border-right: 1px solid rgba(3,136,166,0.2);
  border-left: 1px solid rgba(3,136,166,0.2);
  color: var(--blue-light);
  font-weight: 500;
}

.pill-part.output {
  background: rgba(94,219,160,0.08);
  color: var(--green);
}

/* ANALOGY CARDS */
.analogy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 52px;
}

.analogy-card {
  background: var(--navy-light);
  border: 1px solid rgba(3,136,166,0.15);
  border-radius: 16px;
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.analogy-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--blue-light));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.analogy-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
}

.analogy-card:hover::after {
  transform: scaleX(1);
}

.analogy-card .card-icon {
  width: 48px; height: 48px;
  border-radius: 10px;
  background: var(--blue-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.analogy-card h3 {
  font-family: 'Lora', serif;
  font-size: 1.05rem;
  margin-bottom: 6px;
  color: var(--blue-light);
}

.analogy-card .real-world {
  font-size: 0.78rem;
  font-family: 'DM Mono', monospace;
  letter-spacing: 0.1em;
  color: var(--blue);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.analogy-card p {
  font-size: 0.9rem;
  color: var(--white-dim);
  line-height: 1.7;
  max-width: 100%;
  margin: 0;
}

/* CODE EXPLAINER (how it works) */
.code-explainer {
  margin-top: 56px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

.code-block {
  background: #040d18;
  border: 1px solid rgba(3,136,166,0.2);
  border-radius: 14px;
  overflow: hidden;
  font-family: 'DM Mono', monospace;
}

.code-header {
  background: rgba(3,136,166,0.1);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid rgba(3,136,166,0.15);
}

.code-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}

.code-title {
  font-size: 10px;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  margin-left: 4px;
}

.code-body {
  padding: 24px;
  font-size: 0.82rem;
  line-height: 2;
}

.code-comment { color: rgba(3,136,166,0.6); }
.code-keyword { color: var(--blue-light); }
.code-func    { color: var(--green); }
.code-string  { color: var(--orange); }
.code-num     { color: #a78bfa; }
.code-plain   { color: rgba(255,255,255,0.75); }

/* PLAIN TRANSLATION */
.plain-translation {
  background: var(--navy-light);
  border: 1px solid rgba(3,136,166,0.15);
  border-radius: 14px;
  padding: 32px;
}

.translation-step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.translation-step:last-child { margin-bottom: 0; }

.step-num-circle {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--blue-dim);
  border: 1px solid rgba(3,136,166,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem;
  color: var(--blue-light);
  flex-shrink: 0;
}

.translation-step h4 {
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.translation-step p {
  font-size: 0.875rem;
  color: var(--white-dim);
  margin: 0;
  max-width: 100%;
}

/* TRIGGER-ACTION TABLE */
.trigger-grid {
  margin-top: 52px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.trigger-row {
  display: grid;
  grid-template-columns: 1fr 48px 1fr;
  align-items: center;
  gap: 0;
  background: var(--navy-light);
  border: 1px solid rgba(3,136,166,0.12);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.trigger-row:hover {
  border-color: rgba(3,136,166,0.4);
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
}

.trigger-cell {
  padding: 20px 24px;
  font-size: 0.9rem;
}

.trigger-cell.condition {
  background: rgba(255,154,60,0.06);
  border-right: 1px solid rgba(3,136,166,0.1);
}

.trigger-cell.condition .label {
  font-family: 'DM Mono', monospace;
  font-size: 8px;
  letter-spacing: 0.2em;
  color: var(--orange);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.trigger-cell.condition p {
  color: var(--white);
  margin: 0;
  max-width: 100%;
  font-size: 0.9rem;
}

.trigger-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-faint);
  height: 100%;
  border-left: 1px solid rgba(3,136,166,0.1);
  border-right: 1px solid rgba(3,136,166,0.1);
}

.trigger-cell.action {
  background: rgba(94,219,160,0.04);
}

.trigger-cell.action .label {
  font-family: 'DM Mono', monospace;
  font-size: 8px;
  letter-spacing: 0.2em;
  color: var(--green);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.trigger-cell.action p {
  color: var(--white);
  margin: 0;
  max-width: 100%;
  font-size: 0.9rem;
}

/* BENEFIT CARDS */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
  margin-top: 52px;
}

.benefit-card {
  background: var(--navy-light);
  border: 1px solid rgba(3,136,166,0.14);
  border-radius: 16px;
  padding: 34px 30px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.benefit-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--blue-light));
}

.benefit-card:hover {
  transform: translateY(-5px);
  border-color: rgba(3,136,166,0.35);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.benefit-card .icon {
  width: 50px; height: 50px;
  border-radius: 12px;
  background: var(--blue-dim);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}

.benefit-card h3 {
  font-family: 'Lora', serif;
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.benefit-card p {
  font-size: 0.9rem;
  color: var(--white-dim);
  line-height: 1.75;
  max-width: 100%;
  margin: 0;
}

/* MISCONCEPTIONS */
.myth-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 52px;
}

.myth-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.myth-card {
  border-radius: 14px;
  padding: 28px;
}

.myth-card.myth {
  background: var(--orange-dim);
  border: 1px solid rgba(255,154,60,0.25);
}

.myth-card.reality {
  background: var(--green-dim);
  border: 1px solid rgba(94,219,160,0.25);
}

.myth-label {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.myth-card.myth .myth-label  { color: var(--orange); }
.myth-card.reality .myth-label { color: var(--green); }

.myth-card p {
  font-size: 0.92rem;
  line-height: 1.7;
  margin: 0;
  max-width: 100%;
  color: var(--white-dim);
}

/* REAL WORLD EXAMPLES */
.example-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
  margin-top: 52px;
}

.example-card {
  background: var(--navy-light);
  border: 1px solid rgba(3,136,166,0.14);
  border-radius: 16px;
  padding: 32px;
  position: relative;
  transition: transform 0.3s, box-shadow 0.3s;
}

.example-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.35);
}

.example-tag {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--blue);
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}

.example-card h3 {
  font-family: 'Lora', serif;
  font-size: 1.1rem;
  margin-bottom: 14px;
}

.example-steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}

.ex-step {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.875rem;
  color: var(--white-dim);
  line-height: 1.5;
}

.ex-step svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .analogy-grid    { grid-template-columns: 1fr; }
  .code-explainer  { grid-template-columns: 1fr; }
  .myth-row        { grid-template-columns: 1fr; }
  .trigger-row     { grid-template-columns: 1fr; }
  .trigger-arrow   { display: none; }
}

@media (max-width: 600px) {
  .contract-pill { flex-wrap: wrap; border-radius: 16px; }
  .pill-part { padding: 10px 18px; font-size: .78rem; }
  .code-body { font-size: .75rem; overflow-x: auto; }
  .trigger-cell { padding: 14px 16px; }
  .trigger-cell .label { font-size: 10px; }
}