/* ── Reset & Base ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 18px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  color: #111;
  background: #fafafa;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── Typography ── */
h1, h2, h3 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

/* ── Layout ── */
.section {
  padding: 12rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.section--wide {
  max-width: 1100px;
}

/* ══════════════════════════════════
   Scroll Animations (Apple-style)
   ══════════════════════════════════ */

/* Slide up */
[data-scroll="slide-up"] {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-scroll="slide-up"].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Scale (hero title) */
[data-scroll="scale"] {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 1s ease, transform 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-scroll="scale"].is-visible {
  opacity: 1;
  transform: scale(1);
}

/* Fade */
[data-scroll="fade"] {
  opacity: 0;
  transition: opacity 1s ease;
}

[data-scroll="fade"].is-visible {
  opacity: 1;
}

/* Parallax text — driven by JS */
[data-scroll="parallax-text"] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s ease, transform 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-scroll="parallax-text"].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Word reveal */
[data-scroll="word-reveal"] {
  display: inline-block;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-scroll="word-reveal"].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ══════════════════════════════════
   Hero
   ══════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 4rem 2rem;
  position: relative;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__title {
  font-size: 5rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  margin-bottom: 1.2rem;
}

.hero__tagline {
  font-size: 1.6rem;
  font-weight: 300;
  color: #555;
  margin-bottom: 2.5rem;
}

.hero__sub {
  font-size: 1rem;
  color: #777;
  line-height: 1.9;
  margin-bottom: 3.5rem;
  max-width: 420px;
}

.hero__buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

/* Scroll hint */
.hero__scroll-hint {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
}

.hero__scroll-hint span {
  display: block;
  width: 1px;
  height: 48px;
  background: #ccc;
  position: relative;
  overflow: hidden;
}

.hero__scroll-hint span::after {
  content: '';
  position: absolute;
  top: -48px;
  left: 0;
  width: 1px;
  height: 48px;
  background: #111;
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%   { top: -48px; }
  50%  { top: 48px; }
  100% { top: 48px; }
}

/* Hero parallax on scroll — driven by JS */
.hero.is-scrolling .hero__title {
  transition: none;
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 0.8rem 2.2rem;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn--primary {
  background: #111;
  color: #fff;
  border: 1px solid #111;
}

.btn--primary:hover {
  background: #333;
  border-color: #333;
}

.btn--outline {
  background: transparent;
  color: #111;
  border: 1px solid #ccc;
}

.btn--outline:hover {
  border-color: #111;
}

/* ══════════════════════════════════
   About
   ══════════════════════════════════ */
.about {
  border-top: 1px solid #e5e5e5;
}

.about__heading {
  font-size: 0.85rem;
  font-weight: 400;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 3rem;
}

.about__statement {
  font-size: 1.75rem;
  font-weight: 500;
  margin-bottom: 3.5rem;
}

.about__poetry {
  font-size: 1.05rem;
  color: #555;
  line-height: 2;
}

.about__poetry p {
  margin-bottom: 2rem;
}

/* ══════════════════════════════════
   Sticky Section (Current Vertical)
   ══════════════════════════════════ */
.sticky-section {
  min-height: 200vh;
  position: relative;
  border-top: 1px solid #e5e5e5;
}

.sticky-section__inner {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sticky-section__content {
  max-width: 900px;
  padding: 2rem;
  width: 100%;
}

.vertical__label {
  font-size: 0.85rem;
  font-weight: 400;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 2rem;
}

.vertical__name {
  font-size: 3rem;
  font-weight: 600;
  margin-bottom: 2.5rem;
}

.vertical__desc {
  font-size: 1.05rem;
  color: #555;
  line-height: 2;
}

.vertical__desc p {
  margin-bottom: 1.5rem;
}

/* ══════════════════════════════════
   Philosophy
   ══════════════════════════════════ */
.philosophy {
  border-top: 1px solid #e5e5e5;
}

.philosophy__label {
  font-size: 0.85rem;
  font-weight: 400;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 5rem;
}

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4rem;
}

.pillar__title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.pillar__text {
  font-size: 0.95rem;
  color: #555;
  line-height: 1.7;
}

/* ══════════════════════════════════
   Vision
   ══════════════════════════════════ */
.vision {
  border-top: 1px solid #e5e5e5;
}

.vision__label {
  font-size: 0.85rem;
  font-weight: 400;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 3rem;
}

.vision__statement {
  font-size: 2rem;
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 4rem;
  max-width: 620px;
}

.vision__words {
  font-size: 1.2rem;
  color: #555;
  line-height: 2.5;
}

/* ══════════════════════════════════
   Partnership
   ══════════════════════════════════ */
.partnership {
  border-top: 1px solid #e5e5e5;
}

.partnership__label {
  font-size: 0.85rem;
  font-weight: 400;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 3rem;
}

.partnership__headline {
  font-size: 1.75rem;
  font-weight: 500;
  margin-bottom: 2.5rem;
}

.partnership__list {
  font-size: 1.05rem;
  color: #555;
  line-height: 2;
  margin-bottom: 2.5rem;
}

.partnership__closer {
  font-size: 1.05rem;
  color: #555;
  font-style: italic;
}

/* ══════════════════════════════════
   Footer
   ══════════════════════════════════ */
.footer {
  border-top: 1px solid #e5e5e5;
  padding: 5rem 2rem;
  text-align: center;
}

.footer__name {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.footer__location {
  font-size: 0.85rem;
  color: #999;
  margin-bottom: 0.25rem;
}

.footer__type {
  font-size: 0.8rem;
  color: #bbb;
}

/* ══════════════════════════════════
   Responsive
   ══════════════════════════════════ */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }

  .section {
    padding: 7rem 1.5rem;
  }

  .hero {
    min-height: 90vh;
    padding: 3rem 1.5rem;
  }

  .hero__title {
    font-size: 2.8rem;
  }

  .hero__tagline {
    font-size: 1.2rem;
  }

  .pillars {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero__buttons {
    flex-direction: column;
    width: 100%;
    max-width: 280px;
  }

  .btn {
    text-align: center;
  }

  .about__statement,
  .vision__statement,
  .partnership__headline {
    font-size: 1.4rem;
  }

  .vertical__name {
    font-size: 2.2rem;
  }

  .sticky-section {
    min-height: 150vh;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 2.2rem;
    letter-spacing: 0.1em;
  }

  .section {
    padding: 5rem 1.25rem;
  }
}