/* Design tokens come from variables.css, which every page links first. */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 8px;
  transition: var(--transition-smooth);
  text-align: center;
}

.btn-primary {
  background: var(--gradient-primary);
  background-size: 200% auto;
  color: #0a0e14;
  box-shadow: 0 4px 20px rgba(0, 217, 245, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  background-position: right center;
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--accent-cyan);
  background: rgba(0, 217, 245, 0.05);
  transform: translateY(-2px);
}

/* Inline link styled as a button — used by the demo page's sample controls */
.sample-link {
  color: var(--accent-cyan);
  text-decoration: underline;
  font-weight: 500;
  font-size: inherit;
  padding: 0;
  background: none;
  border: none;
}

.sample-link:hover {
  color: var(--accent-teal);
}

/* Glass Cards */
.glass-card {
  position: relative;
  overflow: hidden;
  background-color: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
  box-shadow: var(--shadow-card);
}

/* Sparrow-style mouse spotlight: a soft radial glow that follows the cursor.
   JS feeds --mx/--my; CSS only fades the layer in and out. */
.glass-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(0, 217, 245, 0.09), transparent 45%);
}

.glass-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(0, 217, 245, 0.1), 0 0 40px rgba(0, 217, 245, 0.06);
}

.glass-card:hover::after {
  opacity: 1;
}

/* Terminal Window */
.terminal-window {
  background: #0d1117;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.6);
}

.terminal-header {
  background: #161b22;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.terminal-dots {
  display: flex;
  gap: 0.5rem;
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.terminal-body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #e6edf3;
  overflow-x: auto;
}

/* Accordion */
.accordion-item {
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  margin-bottom: 1rem;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.accordion-header {
  width: 100%;
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-primary);
  background: transparent;
}

.accordion-icon {
  transition: transform 0.3s ease;
  color: var(--accent-cyan);
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
  padding: 0 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* The max-height value only needs to be larger than the tallest answer. It is deliberately
   generous: clipping the answer is far worse than a slightly eager transition. */
.accordion-item.active .accordion-body {
  max-height: 40rem;
  padding-bottom: 1.5rem;
}

.accordion-body code {
  background: var(--bg-secondary);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.9em;
}