/* ==========================================================================
   Layout — structural rules for header, sections, grids
   ========================================================================== */

.section-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 5.5rem var(--content-pad);
  position: relative;
}

.section--alt { background: var(--panel); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  backdrop-filter: blur(14px) saturate(140%);
  background: rgba(11, 12, 16, 0.72);
  border-bottom: 1px solid var(--hairline);
}

.header-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  height: 100%;
  padding: 0 var(--content-pad);
  display: flex;
  align-items: center;
  gap: 5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-right: auto;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--white);
  letter-spacing: -0.01em;
}
.logo-a { color: var(--magenta); }

.main-nav {
  display: flex;
  gap: 1.9rem;
  align-items: center;
}
.main-nav a {
  font-size: var(--fs-sm);
  color: var(--mist);
  position: relative;
  padding: 0.3rem 0;
}
.main-nav a:hover { color: var(--white); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--white);
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  overflow: hidden;
}

#starfield {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 3rem var(--content-pad);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
  width: 100%;
}

.hero-kicker {
  font-size: var(--fs-sm);
  color: var(--cyan);
  margin-bottom: 1.1rem;
}

.hero-title {
  font-size: clamp(2.2rem, 4.6vw, var(--fs-3xl));
  max-width: 14ch;
}

.hero-sub {
  font-size: var(--fs-md);
  max-width: 46ch;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-visual { 
  display: grid;
  grid-template-areas: "stack";
  align-items: center;
  justify-items: center; 
}

.schematic { width: min(100%, 420px); height: auto; grid-area: stack; }

.scroll-cue {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 1.5px solid var(--hairline-strong);
  border-radius: 20px;
  z-index: 1;
}
.scroll-cue span {
  position: absolute;
  top: 8px;
  left: 50%;
  width: 4px;
  height: 8px;
  margin-left: -2px;
  background: var(--cyan);
  border-radius: 2px;
  animation: scrollCue 1.8s ease-in-out infinite;
}

/* ---------- About / STEM vs STEAM ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3.5rem;
  align-items: center;
}

/* ---------- Offerings ---------- */
.offer-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 3rem;
  align-items: start;
  padding-top: 2.5rem;
}

.track-cards {
  display: grid;
  gap: 1rem;
}

/* ---------- Calculator ---------- */
.calc-widget {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 2.5rem;
  background: var(--panel);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  margin-top: 2rem;
}

.calc-controls {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  justify-content: center;
}

.calc-results {
  display: grid;
  gap: 1rem;
}

.calc-disclaimer {
  font-size: var(--fs-xs);
  color: rgba(197,198,199,0.6);
  margin-top: 1.25rem;
}

/* ---------- Gallery ---------- */
.gallery-filters {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.gallery-grid-container {
  /* width: 100vw; */
  position: relative;
  /* left: 50%; */
  /* right: 50%; */
  /* margin-left: -50vw; */
  /* margin-right: -50vw; */
  overflow: hidden;
  /* background: #0b0c10; */
  padding: 1rem 1rem;
}

.gallery-grid {
  display: flex;
  gap: 1.5rem;
  width: max-content;
  will-change: transform;
  justify-content: center; 
  margin: 0 auto;
}

/* 3. Apply animation ONLY when content overflows screen width */
.gallery-grid.is-scrolling {
  justify-content: flex-start;
  animation: galleryScroll 60s linear infinite;
}

/* 4. Pause auto-scrolling on hover */
.gallery-grid.is-scrolling:hover {
  animation-play-state: paused;
}

/* ---------- Timeline ---------- */
.timeline {
  position: relative;
  display: flex;
  gap: 0;
  overflow-x: auto;
  padding: 3rem 0 1.5rem;
  scrollbar-width: thin;
}

.timeline-track {
  position: absolute;
  left: 0; right: 0;
  top: 3.6rem;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  opacity: 0.4;
}

.timeline-item {
  flex: 0 0 240px;
  padding: 0 1.5rem 0 0;
  position: relative;
}

/* ---------- Impact / stats ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 3.5rem;
}

.testimonial-carousel {
  position: relative;
  overflow: hidden;
}
.testimonial-track {
  display: flex;
  /* gap: 1.5rem; */
  /* overflow: hidden; */
}
.testimonial-card {
  flex: 0 0 100%;
  margin: 0;
  background: var(--void);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 2.2rem;
}
.testimonial-card p {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  color: var(--white);
  max-width: none;
}
.testimonial-card footer {
  margin-top: 1rem;
  color: var(--cyan);
  font-size: var(--fs-sm);
}
.testimonial-controls {
  display: flex;
  gap: 0.6rem;
  justify-content: flex-end;
  margin-top: 1rem;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 3.5rem;
}
.contact-info {
  margin: 1.5rem 0;
  display: grid;
  gap: 0.5rem;
}
.social-links {
  display: flex;
  gap: 0.75rem;
}
.social-links a {
  width: 36px; height: 36px;
  border: 1px solid var(--hairline-strong);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: var(--fs-2xs);
}

.form-row { margin-bottom: 1.1rem; display: flex; flex-direction: column; gap: 0.4rem; }
.form-row label { font-size: var(--fs-sm); color: var(--white); }
.form-row--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.form-row--split > div { display: flex; flex-direction: column; gap: 0.4rem; }
.optional { color: rgba(197,198,199,0.5); font-weight: 400; }


.hp-field {
      opacity: 0;
      position: absolute;
      top: 0;
      left: 0;
      height: 0;
      width: 0;
      z-index: -1;
      overflow: hidden;
    }


/* ---------- Footer ---------- */
.site-footer {
  background: var(--panel);
  border-top: 1px solid var(--hairline);
}
.footer-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 3.5rem var(--content-pad) 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr;
  gap: 2.5rem;
}
.footer-links, .footer-newsletter { display: grid; gap: 0.75rem; align-content: start; }
.footer-links h5, .footer-newsletter h5 {
  font-family: var(--font-body);
  color: var(--white);
  font-size: var(--fs-sm);
  margin: 0 0 0.4rem;
}
.footer-newsletter form { display: flex; gap: 0.5rem; }
.footer-newsletter input {
  flex: 1;
  min-width: 0;
  padding: 0.6rem 0.8rem;
  background: var(--void);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-sm);
}
.footer-bottom {
  border-top: 1px solid var(--hairline);
  text-align: center;
  padding: 1.25rem;
  font-size: var(--fs-xs);
  color: rgba(197,198,199,0.6);
}