.container {
  max-width: 76rem;
  width: 100%;
  min-width: 0;
  margin-inline: auto;
  padding-inline: var(--section-padding-inline);
  position: relative;
  z-index: 1;
}

.section {
  padding-block: var(--space-2xl);
  position: relative;
  z-index: 1;
}

/* Mobile fit-to-screen: exact 15px side margins, no horizontal scroll,
   and a tighter vertical rhythm so sections don't leave dead air. */
@media (max-width: 640px) {
  :root {
    --section-padding-inline: 15px;
  }

  .section {
    padding-block: var(--space-xl);
  }

  .site-nav {
    inset-inline: 15px;
    padding: 0.6rem var(--space-md);
  }
}

.section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(90%, 64rem);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-panel-border-strong), transparent);
  pointer-events: none;
}

.section--alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0));
}

.section-header {
  max-width: 40rem;
  margin-bottom: var(--space-lg);
}

.section-label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: calc(var(--font-size-label) * 1.3);
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.section-intro {
  margin-top: var(--space-sm);
  font-size: var(--font-size-body-lg);
  color: var(--color-text-soft);
  font-family: var(--font-sans);
  max-width: 38rem;
}

/* Site nav — floating glass bar */
.site-nav {
  position: fixed;
  top: var(--space-sm);
  inset-inline: var(--space-sm);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-lg);
  background: rgba(20, 23, 26, 0.55);
  backdrop-filter: blur(14px);
  border: 1px solid var(--color-panel-border);
  border-radius: 999px;
  transform-origin: top center;
  transition: transform var(--motion-duration) var(--motion-ease),
    padding var(--motion-duration) var(--motion-ease);
}

.site-nav.is-scrolled {
  transform: scale(0.7);
}

.site-nav__mark {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.site-nav__mark img {
  height: 1.4rem;
  width: auto;
}

.site-nav__links {
  display: none;
  gap: var(--space-md);
  font-family: var(--font-display);
  font-size: var(--font-size-small);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.site-nav__links a {
  text-decoration: none;
  padding-block: var(--space-3xs);
  border-bottom: 1px solid transparent;
  color: var(--color-text-soft);
  transition: color var(--motion-duration-fast) var(--motion-ease),
    border-color var(--motion-duration-fast) var(--motion-ease);
}

.site-nav__links a:hover,
.site-nav__links a.is-active {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}

/* Hamburger toggle — mobile only */
.site-nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 2rem;
  height: 2rem;
}

.site-nav__toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 1px;
  background: var(--color-text);
  transition: transform var(--motion-duration-fast) var(--motion-ease),
    opacity var(--motion-duration-fast) var(--motion-ease);
}

.site-nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.site-nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 760px) {
  .site-nav__links {
    display: flex;
  }

  .site-nav__toggle {
    display: none;
  }
}

/* Mobile dropdown menu */
@media (max-width: 759px) {
  .site-nav__links {
    position: absolute;
    top: calc(100% + var(--space-sm));
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-lg);
    background: rgba(20, 23, 26, 0.92);
    backdrop-filter: blur(14px);
    border: 1px solid var(--color-panel-border);
    border-radius: var(--radius-md);
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity var(--motion-duration) var(--motion-ease),
      transform var(--motion-duration) var(--motion-ease);
  }

  .site-nav__links.is-open {
    display: flex;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
}

/* Grids */
.card-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .card-grid--projects,
  .card-grid--built {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1000px) {
  .card-grid--projects {
    grid-template-columns: repeat(3, 1fr);
  }
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* Hero — Section 01 */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--space-3xl);
}

@media (max-width: 640px) {
  .hero {
    padding-top: var(--space-2xl);
  }
}

.hero__eyebrow {
  font-family: var(--font-display);
  font-size: var(--font-size-label);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.hero__title {
  position: relative;
  display: inline-block;
  font-family: var(--font-display);
  font-size: var(--font-size-hero);
  font-weight: 700;
  line-height: var(--line-height-tight);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  max-width: 18ch;
}

@media (max-width: 640px) {
  .hero__title {
    font-size: clamp(1.75rem, 10vw, 2.5rem);
  }
}

.hero__title-outline,
.hero__title-fill {
  display: block;
  white-space: nowrap;
}

.hero__title-outline {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--color-panel-border-strong);
}

.hero__title-fill {
  position: absolute;
  top: 0;
  left: 0;
  color: var(--color-text);
  overflow: hidden;
  width: 0%;
}

.hero__charge-bar {
  position: absolute;
  top: 0.1em;
  bottom: 0.1em;
  right: 0;
  width: 4px;
  border-radius: 2px;
  background: var(--color-accent);
  box-shadow: 0 0 18px 3px var(--color-accent);
  opacity: 1;
}

.hero__lede {
  margin-top: var(--space-lg);
  max-width: 42rem;
  font-size: var(--font-size-body-lg);
  font-family: var(--font-sans);
  color: var(--color-text-soft);
}

.hero__scroll-cue {
  position: absolute;
  bottom: var(--space-lg);
  left: var(--section-padding-inline);
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  font-family: var(--font-display);
  font-size: var(--font-size-small);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  text-decoration: none;
  color: var(--color-text-soft);
  opacity: 0;
  transition: opacity 400ms ease;
}

.hero__scroll-cue.is-visible {
  opacity: 1;
}

.hero__scroll-arrow {
  font-size: 1.1rem;
  color: var(--color-accent);
}

.hero__scroll-cue.is-visible .hero__scroll-arrow {
  animation: bob 2.2s ease-in-out infinite;
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* Let's Build Something — Section 08 */
.cta-section {
  text-align: left;
}

.cta-section__title {
  font-size: var(--font-size-h1);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  max-width: 26ch;
}

.cta-section__lede {
  margin-top: var(--space-md);
  font-size: var(--font-size-body-lg);
  font-family: var(--font-sans);
  color: var(--color-text-soft);
  max-width: 38rem;
}

.cta-section__action {
  margin-top: var(--space-lg);
}

/* Site footer */
.site-footer {
  padding-block: var(--space-lg);
  border-top: 1px solid var(--color-line);
  text-align: center;
  color: var(--color-text-faint);
  font-family: var(--font-display);
  font-size: var(--font-size-small);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}