@import url('https://fonts.googleapis.com/css2?family=Plus Jakarta Sans:wght@300;400;500;600;700&display=swap');

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #c8e0f4;
  --secondary: #f5e0e8;
  --dark: #171f26;
  --primary-light: #dceefb;
  --primary-dark: #a8c8e8;
  --secondary-light: #faeef3;
  --secondary-dark: #e8c8d4;
  --text: #171f26;
  --text-soft: #3a4a58;
  --text-muted: #6a7e90;
  --surface: #d4e8f6;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-neu-out: -5px -5px 15px rgba(255,255,255,0.85), 5px 5px 15px rgba(180,210,240,0.55);
  --shadow-neu-in: inset -3px -3px 8px rgba(255,255,255,0.8), inset 3px 3px 8px rgba(160,195,225,0.5);
  --shadow-neu-press: inset -2px -2px 5px rgba(255,255,255,0.7), inset 2px 2px 8px rgba(140,180,215,0.6);
  --header-h: 68px;
  --sticky-h: 44px;
  --total-header: 112px;
  --font: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body.neu-body {
  font-family: var(--font);
  background: var(--primary);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── FULLSCREEN MENU ── */
.fullscreen-menu {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary) 100%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.fullscreen-menu.open {
  opacity: 1;
  pointer-events: all;
}
.menu-close {
  position: absolute;
  top: 28px;
  right: 32px;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--dark);
  cursor: pointer;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  box-shadow: var(--shadow-neu-out);
  transition: box-shadow 0.15s, transform 0.15s;
}
.menu-close:hover {
  box-shadow: var(--shadow-neu-in);
  transform: scale(0.96);
}
.fullscreen-nav p {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
}
.fullscreen-nav .nav-link {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--dark);
  text-decoration: none;
  letter-spacing: 0.02em;
  padding: 0.5rem 2rem;
  border-radius: var(--radius-md);
  transition: background 0.2s, box-shadow 0.2s;
}
.fullscreen-nav .nav-link:hover {
  background: rgba(255,255,255,0.35);
  box-shadow: var(--shadow-neu-out);
}

/* ── HEADER ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  background: linear-gradient(145deg, var(--primary-light), var(--primary));
  box-shadow: 0 4px 20px rgba(160,200,230,0.35);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding: 0 2rem;
  gap: 1rem;
}
.header-left,
.header-right {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.header-right {
  justify-content: flex-end;
}
.header-center {
  flex: 0 0 auto;
}

/* nav p > a structure */
.header-nav p {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
}
.header-nav .nav-link {
  color: var(--text-soft);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  transition: box-shadow 0.2s, background 0.2s;
}
.header-nav .nav-link:hover {
  background: rgba(255,255,255,0.5);
  box-shadow: var(--shadow-neu-out);
}

.brand-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.brand-text {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.logo-img {
  height: 40px;
  width: auto;
}

.header-search {
  display: flex;
  align-items: center;
}
.search-input {
  background: linear-gradient(145deg, var(--primary-light), var(--primary));
  border: none;
  border-radius: 20px;
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
  font-family: var(--font);
  color: var(--text);
  box-shadow: var(--shadow-neu-in);
  outline: none;
  width: 120px;
  transition: width 0.3s, box-shadow 0.2s;
}
.search-input:focus {
  width: 180px;
  box-shadow: var(--shadow-neu-out);
}

.hamburger-btn {
  background: linear-gradient(145deg, var(--primary-light), var(--primary));
  border: none;
  border-radius: var(--radius-sm);
  width: 44px;
  height: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  box-shadow: var(--shadow-neu-out);
  transition: box-shadow 0.15s, transform 0.15s;
}
.hamburger-btn:active {
  box-shadow: var(--shadow-neu-press);
  transform: scale(0.95);
}
.ham-line {
  width: 20px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  display: block;
}

/* ── STICKY BAR ── */
.sticky-bar {
  background: linear-gradient(145deg, var(--secondary-light), var(--secondary));
  border-top: 1px solid rgba(200,170,185,0.3);
  box-shadow: 0 3px 10px rgba(200,160,180,0.2);
}
.sticky-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  height: var(--sticky-h);
  padding: 0 1rem;
  gap: 0.25rem;
  overflow-x: auto;
  scrollbar-width: none;
}
.sticky-inner::-webkit-scrollbar { display: none; }
.sticky-link {
  color: var(--text-soft);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.45rem 0.85rem;
  border-radius: 20px;
  white-space: nowrap;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  transition: background 0.2s, box-shadow 0.2s;
}
.sticky-link:hover {
  background: rgba(255,255,255,0.45);
  box-shadow: var(--shadow-neu-out);
}

/* ── HERO ── */
.hero-section {
  min-height: 100vh;
  padding-top: var(--total-header);
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr;
  position: relative;
  overflow: hidden;
  align-items: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary-light) 100%);
}
.hero-bg-text {
  position: absolute;
  top: 50%;
  left: -2%;
  transform: translateY(-50%);
  font-size: clamp(5rem, 14vw, 14rem);
  font-weight: 700;
  color: rgba(200,224,244,0.2);
  white-space: nowrap;
  pointer-events: none;
  z-index: 0;
  letter-spacing: -0.04em;
  user-select: none;
}
.hero-number {
  position: absolute;
  top: calc(var(--total-header) + 1.5rem);
  right: 2.5rem;
  font-size: 7rem;
  font-weight: 700;
  color: rgba(245,224,232,0.35);
  line-height: 1;
  pointer-events: none;
  z-index: 0;
  user-select: none;
}
.hero-media {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  height: calc(100vh - var(--total-header));
  padding: 3rem 2rem 3rem 3rem;
}
.hero-collage {
  position: relative;
  width: 100%;
  max-width: 460px;
  height: 520px;
}
.hero-img {
  position: absolute;
  border-radius: var(--radius-lg);
  object-fit: cover;
  box-shadow: var(--shadow-neu-out);
}
.hero-img-1 {
  width: 72%;
  height: 68%;
  top: 0;
  left: 0;
  z-index: 2;
}
.hero-img-2 {
  width: 65%;
  height: 60%;
  bottom: 0;
  right: 0;
  z-index: 3;
  box-shadow: -8px -8px 20px rgba(255,255,255,0.7), 8px 8px 25px rgba(160,195,225,0.6);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: right;
  padding: 3rem 3rem 3rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  height: calc(100vh - var(--total-header));
}
.hero-h1 {
  font-size: clamp(2rem, 4.5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--dark);
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  max-width: 480px;
}
.hero-desc {
  font-size: 1.05rem;
  color: var(--text-soft);
  line-height: 1.7;
  max-width: 400px;
  margin-bottom: 2rem;
}
.hero-cta.neu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2.2rem;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--secondary-light), var(--secondary));
  color: var(--dark);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  box-shadow: var(--shadow-neu-out);
  transition: box-shadow 0.15s, transform 0.15s;
  min-height: 48px;
}
.hero-cta.neu-btn:hover {
  box-shadow: -6px -6px 18px rgba(255,255,255,0.9), 6px 6px 18px rgba(200,160,180,0.5);
}
.hero-cta.neu-btn:active {
  box-shadow: var(--shadow-neu-press);
  transform: scale(0.97);
}

/* ── MAIN / CONTENT ── */
main {
  background: var(--primary);
  padding: 3rem 0 4rem;
}
.wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.content-section {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  align-items: start;
}
/* aside on the left */
.content-aside {
  position: sticky;
  top: calc(var(--total-header) + 1.5rem);
}
.aside-inner {
  background: linear-gradient(145deg, var(--primary-light), var(--primary));
  border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem;
  box-shadow: var(--shadow-neu-out);
}
.aside-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}
.aside-title span {
  display: inline-block;
}
.aside-link {
  display: block;
  color: var(--text-soft);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.3rem;
  min-height: 40px;
  display: flex;
  align-items: center;
  transition: background 0.2s, box-shadow 0.2s;
}
.aside-link:hover {
  background: rgba(255,255,255,0.5);
  box-shadow: var(--shadow-neu-out);
  color: var(--dark);
}

/* article: the content goes here */
.content-article {
  min-width: 0;
}

/* ── div scroll margin ── */
div[id] {
  scroll-margin-top: calc(var(--total-header) + 1rem);
}

/* ── CONTENT TYPOGRAPHY ── */
.content-article h1,
.content-article h2,
.content-article h3,
.content-article h4 {
  color: var(--dark);
  line-height: 1.3;
  margin-top: 2.5rem;
  margin-bottom: 0.85rem;
}
.content-article h1 { font-size: 2.1rem; font-weight: 700; }
.content-article h2 { font-size: 1.55rem; font-weight: 700; }
.content-article h3 { font-size: 1.2rem; font-weight: 600; }
.content-article p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-soft);
  margin-bottom: 1rem;
}
.content-article ul,
.content-article ol {
  margin: 1rem 0 1rem 1.5rem;
  color: var(--text-soft);
  line-height: 1.8;
}
.content-article li { margin-bottom: 0.4rem; }
.content-article a {
  color: var(--dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.content-article blockquote {
  border-left: 4px solid var(--secondary-dark);
  padding: 0.75rem 1.25rem;
  background: linear-gradient(145deg, var(--secondary-light), var(--secondary));
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.5rem 0;
  box-shadow: var(--shadow-neu-out);
}
.content-article blockquote p {
  margin: 0;
  font-style: italic;
  color: var(--text);
}

/* div within article gets visual separation */
.content-article > div,
.content-article div {
  padding: 2.5rem;
  background: linear-gradient(145deg, var(--primary-light), var(--primary));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-neu-out);
  margin-bottom: 2.5rem;
}
.content-article > div:first-child,
.content-article div:first-child {
  margin-top: 0;
}

/* cards (description list / plain) */
.content-article dl {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}
.content-article dt {
  font-weight: 600;
  color: var(--dark);
  border: 1px solid rgba(160,195,225,0.4);
  border-radius: 0;
  padding: 0.75rem 1rem;
}
.content-article dd {
  color: var(--text-soft);
  border: 1px solid rgba(160,195,225,0.4);
  border-radius: 0;
  padding: 0.75rem 1rem;
}

/* ── NEU BUTTON ── */
.neu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.8rem;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--primary-light), var(--primary));
  color: var(--dark);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  box-shadow: var(--shadow-neu-out);
  border: none;
  cursor: pointer;
  transition: box-shadow 0.15s, transform 0.15s;
  min-height: 44px;
  font-family: var(--font);
}
.neu-btn:active {
  box-shadow: var(--shadow-neu-press);
  transform: scale(0.97);
}

/* ── FOOTER ── */
.site-footer {
  background: linear-gradient(145deg, var(--secondary), var(--secondary-light));
  padding: 3rem 2rem 1.5rem;
}
.footer-form-block {
  max-width: 560px;
  margin: 0 auto 2.5rem;
  text-align: center;
  padding: 2rem;
  background: linear-gradient(145deg, var(--secondary-light), var(--secondary));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-neu-out);
}
.footer-form-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
}
.footer-form-title span {
  display: inline-block;
}
.footer-form-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}
.footer-contact-info {
  color: var(--text-soft);
  font-size: 0.9rem;
}
.footer-main {
  max-width: 900px;
  margin: 0 auto 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(200,170,185,0.3);
}
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer-brand-desc {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
}
.footer-links-label {
  font-weight: 600;
  color: var(--text-soft);
  font-size: 0.9rem;
}
.footer-links-col small {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}
.footer-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0;
}
.footer-link:hover {
  color: var(--dark);
}
.footer-copyright {
  text-align: center;
  padding-top: 0.5rem;
}
.footer-copyright small {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ── SCROLL REVEAL ── */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.55s ease, transform 0.55s ease;
  }
  .reveal.visible {
    opacity: 1;
    transform: none;
  }
  .stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.45s ease, transform 0.45s ease;
  }
  .stagger-item.visible {
    opacity: 1;
    transform: none;
  }
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .content-section {
    grid-template-columns: 1fr;
  }
  .content-aside {
    position: static;
  }
  .aside-inner {
    display: flex;
    flex-direction: column;
  }
  .hero-section {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    min-height: 100vh;
    padding-top: var(--total-header);
  }
  .hero-media {
    height: 52vw;
    min-height: 260px;
    padding: 2rem;
  }
  .hero-content {
    height: auto;
    padding: 2rem;
    align-items: flex-end;
    text-align: right;
  }
  .hero-h1 { font-size: clamp(1.6rem, 5vw, 2.4rem); }
  .footer-main { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  :root {
    --header-h: 60px;
    --sticky-h: 40px;
    --total-header: 100px;
  }
  .header-inner { padding: 0 1rem; }
  .left-nav { display: none; }
  .right-nav { display: none; }
  .header-search { display: none; }
  .hero-bg-text { font-size: 4rem; }
  .hero-number { font-size: 4rem; }
  .hero-collage { height: 260px; }
  .hero-content { text-align: right; padding: 1.25rem 1rem 2rem; }
  .hero-h1 { font-size: 1.6rem; }
  .hero-desc { font-size: 0.95rem; }
  .content-article > div,
  .content-article div { padding: 1.5rem 1.25rem; }
  .site-footer { padding: 2rem 1rem 1rem; }
  .sticky-inner { justify-content: flex-start; }
  .wrap { padding: 0 1rem; }
  .content-article dl { grid-template-columns: 1fr; }
}

@media (max-width: 375px) {
  .hero-h1 { font-size: 1.4rem; }
  .hero-desc { font-size: 0.9rem; }
}

button[aria-expanded]{min-width:44px;min-height:44px}