/* ============================================
   AlStableCoin — Mechanism Page Styles
   ============================================ */

/* --- Process Steps --- */
.process-steps {
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.process-steps::before {
  content: "";
  position: absolute;
  left: 40px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(
    to bottom,
    var(--accent),
    var(--accent-2),
    var(--accent-3),
    transparent
  );
}

.process-step {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-lg) 0;
  position: relative;
}

.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  min-width: 80px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--accent-light);
  z-index: 1;
  transition: all var(--transition-smooth);
}

.process-step:hover::before {
  border-color: var(--border-glow);
  box-shadow: 0 0 24px var(--accent-glow);
  background: rgba(240, 165, 0, 0.1);
}

.process-step-content {
  flex: 1;
  padding-top: var(--space-md);
  min-width: 0;
}

.process-step-content h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.process-step-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* --- Formula Highlight --- */
.formula-highlight {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-md) 0;
  display: inline-block;
  font-family: var(--font-mono);
  transition: all var(--transition-smooth);
  max-width: 100%;
  overflow-x: auto;
}

.formula-highlight:hover {
  border-color: var(--border-glow);
  box-shadow: 0 0 20px var(--accent-glow);
}

/* ============================================
   Architecture Diagram
   ============================================ */
.arch-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  text-align: center;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.arch-diagram {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-lg);
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: var(--space-xl);
  backdrop-filter: blur(10px);
}

.arch-node {
  text-align: center;
  padding: var(--space-lg);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  transition: all var(--transition-smooth);
}

.arch-node:hover {
  border-color: var(--border-glow);
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-2px);
}

.arch-node-icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.arch-node h4 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.arch-node p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.arch-node .arch-formula {
  display: block;
  font-family: var(--font-mono);
  color: var(--accent-light);
  font-size: 0.95rem;
  margin-top: var(--space-sm);
  overflow-x: auto;
  max-width: 100%;
}

.arch-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  color: var(--accent-light);
  font-size: 1.5rem;
}

.arch-arrow-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  writing-mode: vertical-rl;
}

/* ============================================
   Fee Flow
   ============================================ */
.fee-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.fee-step {
  text-align: center;
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  position: relative;
  transition: all var(--transition-smooth);
  backdrop-filter: blur(10px);
}

.fee-step:hover {
  border-color: var(--border-glow);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-2px);
}

.fee-step::after {
  content: "\2192";
  position: absolute;
  right: -1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent-light);
  font-size: 1.2rem;
}

.fee-step:last-child::after {
  content: none;
}

.fee-step-num {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--accent-light);
  margin-bottom: var(--space-sm);
}

.fee-step p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  word-break: break-word;
}

/* ============================================
   Responsive — 768px
   ============================================ */
@media (max-width: 768px) {
  .process-steps::before {
    left: 24px;
  }

  .process-step::before {
    width: 48px;
    height: 48px;
    min-width: 48px;
    font-size: 1rem;
  }

  .process-step {
    gap: var(--space-md);
  }

  .process-step-content h3 {
    font-size: var(--text-lg);
  }

  .process-step-content p {
    font-size: 0.9rem;
  }

  .arch-diagram {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    padding: var(--space-lg);
  }

  .arch-arrow {
    flex-direction: row;
    padding: var(--space-sm) 0;
  }

  .arch-arrow-label {
    writing-mode: horizontal-tb;
  }

  .fee-flow {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }

  .fee-step::after {
    display: none;
  }
}

/* ============================================
   Responsive — 480px
   ============================================ */
@media (max-width: 480px) {
  .fee-flow {
    grid-template-columns: 1fr;
  }

  .arch-diagram {
    padding: var(--space-md);
  }

  .arch-node {
    padding: var(--space-md);
  }

  .formula-highlight {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.85rem;
    display: block;
  }
}