/* ============================================================
   COMPONENTS.CSS — Reusable UI Components
   Resistor Technology · resistor.technology
   ============================================================ */

/* --- Section Container --- */
.section {
  position: relative;
  padding: var(--space-3xl) var(--space-lg);
}

.section__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* --- Section Headers --- */
.section-header {
  margin-bottom: var(--space-xl);
}

.section-header__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.section-header__title {
  font-size: var(--fs-h1);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.section-header__tagline {
  font-family: var(--font-body);
  font-size: var(--fs-h3);
  font-weight: 400;
  font-style: italic;
  color: var(--color-text-secondary);
  max-width: 600px;
}

/* --- Accent Colors per Section --- */
.accent-brass .section-header__title,
.accent-brass .section-header__label { color: var(--color-brass); }

.accent-amethyst .section-header__title,
.accent-amethyst .section-header__label { color: var(--color-amethyst-light); }

.accent-teal .section-header__title,
.accent-teal .section-header__label { color: var(--color-teal-light); }

/* --- Feature Cards --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition:
    transform var(--duration-med) var(--ease-out),
    box-shadow var(--duration-med) var(--ease-out),
    border-color var(--duration-med);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  border-color: var(--color-border-light);
}

.card__icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
  display: block;
}

.card__title {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.card__description {
  font-size: var(--fs-body);
  color: var(--color-text-secondary);
  line-height: var(--lh-loose);
}

/* Card accent variants */
.accent-brass .card:hover { border-color: var(--color-brass-dark); }
.accent-amethyst .card:hover { border-color: var(--color-amethyst-dark); }
.accent-teal .card:hover { border-color: var(--color-teal-dark); }

/* --- Bento Grid --- */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.bento-grid .card--wide {
  grid-column: span 2;
}

.bento-grid .card--tall {
  grid-row: span 2;
}

/* --- Tech Badges --- */
.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.badge {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  background: var(--color-surface);
}

.accent-brass .badge { border-color: var(--color-brass-dark); color: var(--color-brass); }
.accent-amethyst .badge { border-color: var(--color-amethyst-dark); color: var(--color-amethyst-light); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--fs-body);
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  transition:
    transform var(--duration-fast),
    box-shadow var(--duration-med),
    background var(--duration-med);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
}

.btn:active {
  transform: scale(0.97);
}

.btn--brass {
  background: var(--color-brass);
  color: var(--color-bg);
}

.btn--brass:hover {
  background: var(--color-brass-light);
  box-shadow: 0 0 20px rgba(196, 166, 122, calc(0.3 * var(--glow-intensity)));
}

.btn--amethyst {
  background: var(--color-amethyst);
  color: var(--color-text-primary);
}

.btn--amethyst:hover {
  background: var(--color-amethyst-light);
  box-shadow: 0 0 20px rgba(106, 74, 138, calc(0.3 * var(--glow-intensity)));
}

.btn--ghost {
  background: transparent;
  border: 1px solid var(--color-border-light);
  color: var(--color-text-secondary);
}

.btn--ghost:hover {
  border-color: var(--color-text-secondary);
  color: var(--color-text-primary);
}

/* --- Link Underline Animation --- */
.link-animated {
  position: relative;
  display: inline-block;
}

.link-animated::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width var(--duration-med) var(--ease-out);
}

.link-animated:hover::after {
  width: 100%;
}

/* --- Stat Highlights --- */
.stats {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
}

.stat {
  text-align: center;
}

.stat__value {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 700;
  color: var(--color-brass);
}

.stat__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* --- Editorial Split Layout --- */
.editorial {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.editorial--reversed {
  direction: rtl;
}

.editorial--reversed > * {
  direction: ltr;
}

.editorial__sticky {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-lg));
}

.editorial__content {
  padding-top: var(--space-lg);
}

/* --- Product Mockup --- */
.mockup {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.mockup__inner {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  background: linear-gradient(135deg, var(--color-surface), var(--color-surface-raised));
}

.mockup--scanlines::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  pointer-events: none;
}

/* --- Feature List (within editorial) --- */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* --- Scroll Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1 { transition-delay: 100ms; }
.reveal--delay-2 { transition-delay: 200ms; }
.reveal--delay-3 { transition-delay: 300ms; }
.reveal--delay-4 { transition-delay: 400ms; }