/* =========================================================================
   ATOM Campus — Site styles
   Built on top of tokens.css. Orange is the dominant accent.
   ========================================================================= */
@import url("./tokens.css");

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-1);
  color: var(--fg-1);
  overflow-x: hidden;
}

/* Selection */
::selection { background: var(--atom-campus); color: #fff; }

/* Containers */
.container {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}
.container-wide { max-width: 1480px; }
.container-narrow { max-width: 920px; }

/* ========================== NAVBAR ========================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--border-1);
  transition: box-shadow .25s var(--ease-standard);
}
.nav.is-scrolled { box-shadow: var(--shadow-sm); }
.nav-inner {
  display: flex; align-items: center; gap: 32px;
  height: 76px;
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}
.nav-logo {
  display: inline-flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--fg-1);
  font-family: var(--font-display); font-weight: 800;
  letter-spacing: -0.01em;
  font-size: 18px;
}
.nav-logo img { height: 38px; width: auto; }
.nav-logo .nl-sub {
  font-family: var(--font-display); font-size: 11px;
  letter-spacing: 0.18em; color: var(--atom-campus);
  font-weight: 700; text-transform: uppercase;
  margin-top: 4px; line-height: 1;
}
.nav-logo-text { display: flex; flex-direction: column; line-height: 1; }
.nav-logo-text .nl-main { font-size: 18px; letter-spacing: 0; }

.nav-links {
  display: flex; align-items: center; gap: 6px;
  margin-left: auto;
  list-style: none; padding: 0; margin-right: auto;
}
.nav-link {
  position: relative;
  display: inline-flex; align-items: center;
  padding: 10px 14px;
  font-family: var(--font-body); font-size: 14.5px; font-weight: 500;
  color: var(--fg-2);
  text-decoration: none;
  border-radius: 8px;
  transition: color .2s var(--ease-standard), background .2s var(--ease-standard);
}
.nav-link:hover { color: var(--fg-1); background: var(--neutral-50); }
.nav-link[aria-current="page"] { color: var(--fg-1); }
.nav-link[aria-current="page"]::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px;
  height: 2px; background: var(--atom-campus); border-radius: 2px;
}

/* Group dropdown */
.nav-group {
  position: relative;
}
.nav-group-trigger {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 14px;
  background: none; border: none; cursor: pointer;
  font: inherit; color: var(--fg-2);
  font-size: 14.5px; font-weight: 500;
  border-radius: 8px;
  transition: background .2s, color .2s;
}
.nav-group-trigger:hover { color: var(--fg-1); background: var(--neutral-50); }
.nav-group-trigger svg { transition: transform .25s var(--ease-standard); }
.nav-group[data-open="true"] .nav-group-trigger svg { transform: rotate(180deg); }

.nav-group-menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  min-width: 320px;
  background: var(--bg-1);
  border: 1px solid var(--border-1);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 12px;
  display: grid; gap: 4px;
  opacity: 0; pointer-events: none;
  transform: translateY(-4px);
  transition: opacity .2s, transform .2s;
}
.nav-group[data-open="true"] .nav-group-menu {
  opacity: 1; pointer-events: auto; transform: translateY(0);
}
.nav-group-menu a {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  text-decoration: none;
  border-radius: 10px;
  transition: background .2s;
  color: var(--fg-1);
}
.nav-group-menu a:hover { background: var(--neutral-50); }
.nav-group-menu a img { width: 36px; height: 36px; object-fit: contain; }
.nav-group-menu a .ng-name {
  font-family: var(--font-display); font-weight: 700; font-size: 14px;
  letter-spacing: -0.005em; line-height: 1.2;
}
.nav-group-menu a .ng-desc {
  font-size: 12px; color: var(--fg-3); line-height: 1.35;
}

/* Right cluster */
.nav-right { display: flex; align-items: center; gap: 8px; }

.lang-toggle {
  display: inline-flex; align-items: center; gap: 0;
  background: var(--neutral-100);
  border-radius: 999px;
  padding: 3px;
  position: relative;
}
.lang-toggle button {
  position: relative; z-index: 2;
  border: none; background: transparent;
  font-family: var(--font-display); font-weight: 700;
  font-size: 12px; letter-spacing: 0.08em;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--fg-3);
  transition: color .25s var(--ease-standard);
}
.lang-toggle button[aria-pressed="true"] { color: #fff; }
.lang-toggle::after {
  content: ""; position: absolute; z-index: 1;
  top: 3px; bottom: 3px;
  width: calc(50% - 3px);
  border-radius: 999px;
  background: var(--atom-campus);
  transition: transform .3s var(--ease-standard);
  left: 3px;
}
.lang-toggle[data-lang="en"]::after { transform: translateX(100%); }

/* Mobile nav */
.nav-toggle {
  display: none;
  background: none; border: none; cursor: pointer;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  color: var(--fg-1);
}
@media (max-width: 980px) {
  .nav-toggle { display: inline-flex; }
  .nav-links, .nav-group { display: none; }
  .nav.is-mobile-open .nav-links {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; top: 76px; left: 0; right: 0;
    background: #fff;
    padding: 12px;
    gap: 4px;
    border-bottom: 1px solid var(--border-1);
    box-shadow: var(--shadow-md);
  }
  .nav.is-mobile-open .nav-group {
    display: block;
    position: absolute; top: calc(76px + 240px); left: 0; right: 0;
    padding: 0 12px 16px;
    background: #fff;
  }
  .nav.is-mobile-open .nav-group-menu {
    position: static; transform: none; box-shadow: none;
    border: 1px solid var(--border-1);
  }
  .nav.is-mobile-open .nav-group:not([data-open="true"]) .nav-group-menu {
    display: none;
  }
  .nav.is-mobile-open .nav-group[data-open="true"] .nav-group-menu {
    display: grid; opacity: 1; pointer-events: auto;
  }
}

/* ========================== BUTTONS ========================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: var(--tracking-button);
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all .2s var(--ease-standard);
  white-space: nowrap;
}
.btn:focus-visible { outline: 3px solid var(--atom-campus-soft); outline-offset: 2px; }

.btn-primary {
  background: var(--atom-campus); color: #fff;
  box-shadow: 0 6px 16px rgba(248,120,8,0.28);
}
.btn-primary:hover {
  background: var(--atom-campus-hover);
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(248,120,8,0.32);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent; color: var(--fg-1);
  border: 1.5px solid var(--neutral-300);
}
.btn-ghost:hover {
  background: var(--neutral-900); color: #fff; border-color: var(--neutral-900);
}

.btn-light {
  background: #fff; color: var(--neutral-900);
}
.btn-light:hover { background: var(--neutral-100); }

.btn-dark {
  background: var(--neutral-900); color: #fff;
}
.btn-dark:hover { background: var(--neutral-800); }

.btn-sm { padding: 10px 16px; font-size: 12.5px; }
.btn-lg { padding: 18px 28px; font-size: 15px; }

.btn .icon-r { transition: transform .25s var(--ease-standard); }
.btn:hover .icon-r { transform: translateX(3px); }

/* ========================== TYPE UTILITIES ========================== */
.eyebrow-orange {
  font-family: var(--font-display);
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--atom-campus);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow-orange::before {
  content: ""; width: 24px; height: 2px; background: var(--atom-campus);
  display: inline-block;
}
.eyebrow-light::before { background: rgba(255,255,255,0.6); }
.eyebrow-light { color: rgba(255,255,255,0.85); }

.text-mute { color: var(--fg-2); }
.text-orange { color: var(--atom-campus); }

/* Section base */
.section {
  padding: clamp(64px, 9vw, 128px) 0;
  position: relative;
}
.section-tight { padding: clamp(40px, 6vw, 80px) 0; }
.section-dark { background: var(--neutral-900); color: #fff; }
.section-dark p { color: rgba(255,255,255,0.78); }
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }
.section-poster { background: var(--neutral-600); color: #fff; }
.section-poster p { color: rgba(255,255,255,0.85); }
.section-poster h1, .section-poster h2, .section-poster h3, .section-poster h4 { color: #fff; }
.section-soft { background: var(--bg-2); }

/* ========================== CAPSULE CARDS (signature ATOM motif) ========================== */
.capsule-stack {
  position: relative;
  display: inline-block;
  max-width: 100%;
}
.capsule-title {
  background: var(--neutral-700);
  color: #fff;
  font-family: var(--font-display); font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 18px 28px;
  border-radius: var(--radius-lg);
  display: inline-block;
  position: relative;
  z-index: 2;
}
.capsule-body {
  background: var(--atom-campus);
  color: #fff;
  padding: 24px 28px;
  border-radius: var(--radius-lg);
  margin-top: -10px;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-md);
  font-family: var(--font-display); font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.4;
}
.capsule-body ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.capsule-body li { display: flex; gap: 10px; align-items: flex-start; }
.capsule-body li::before {
  content: "●"; color: #fff; flex: 0 0 auto;
  font-size: 10px; line-height: 1.6; margin-top: 2px;
}
.capsule-quote {
  position: absolute;
  left: 12px; bottom: -28px;
  font-family: var(--font-display); font-weight: 900;
  font-size: 96px; line-height: 1;
  color: rgba(255,255,255,0.6);
  z-index: 0;
  pointer-events: none;
}

/* ========================== CARDS ========================== */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--border-1);
  transition: box-shadow .25s var(--ease-standard), border-color .25s var(--ease-standard), transform .25s var(--ease-standard);
}
.card:hover { box-shadow: var(--shadow-md); border-color: transparent; }

.card-flush { padding: 0; overflow: hidden; }

/* ========================== FOOTER ========================== */
.footer {
  background: var(--neutral-900);
  color: rgba(255,255,255,0.78);
  padding: 80px 0 40px;
}
.footer h4 {
  color: #fff; font-family: var(--font-display);
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  margin: 0 0 18px;
}
.footer a { color: rgba(255,255,255,0.78); text-decoration: none; transition: color .2s; }
.footer a:hover { color: var(--atom-campus); }
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
}
.footer-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-size: 14px; }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
  margin-top: 64px; padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 12px; color: rgba(255,255,255,0.5);
}
@media (max-width: 820px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px 24px; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ========================== ECOSYSTEM STRIP ========================== */
.ecosystem-strip {
  background: var(--neutral-50);
  padding: 56px 0;
  border-top: 1px solid var(--border-1);
  border-bottom: 1px solid var(--border-1);
}
.ecosystem-strip-head {
  display: flex; justify-content: space-between; align-items: end;
  flex-wrap: wrap; gap: 16px;
  margin-bottom: 32px;
}
.ecosystem-strip h3 {
  font-family: var(--font-display); font-weight: 800;
  font-size: 28px; line-height: 1.1;
  margin: 0; max-width: 520px;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}
.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.eco-card {
  display: flex; flex-direction: column; gap: 14px;
  padding: 24px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--border-1);
  text-decoration: none;
  color: var(--fg-1);
  transition: transform .3s var(--ease-standard), box-shadow .3s var(--ease-standard), border-color .3s var(--ease-standard);
  position: relative; overflow: hidden;
  min-height: 180px;
}
.eco-card::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 3px;
  background: var(--accent, var(--atom-campus));
  transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease-standard);
}
.eco-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
.eco-card:hover::after { transform: scaleX(1); }
.eco-card img { height: 44px; width: auto; align-self: flex-start; }
.eco-card .eco-name {
  font-family: var(--font-display); font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.02em;
  font-size: 17px;
}
.eco-card .eco-desc { font-size: 13px; color: var(--fg-3); line-height: 1.4; }
.eco-card .eco-cta {
  margin-top: auto;
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-display); font-weight: 700;
  font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent, var(--atom-campus));
}
.eco-card[data-brand="center"]   { --accent: var(--atom-center); }
.eco-card[data-brand="code"]     { --accent: var(--atom-code); }
.eco-card[data-brand="leaders"]  { --accent: var(--atom-leaders); }
.eco-card[data-brand="pioneer"]  { --accent: var(--atom-pioneer); }

@media (max-width: 980px) {
  .ecosystem-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .ecosystem-grid { grid-template-columns: 1fr; }
}

/* ========================== UTILITIES ========================== */
.grid { display: grid; gap: 24px; }
.flex { display: flex; }
.between { display: flex; justify-content: space-between; align-items: center; }
.gap-3 { gap: 12px; } .gap-4 { gap: 16px; } .gap-6 { gap: 24px; } .gap-8 { gap: 32px; }
.mt-3 { margin-top: 12px; } .mt-6 { margin-top: 24px; } .mt-8 { margin-top: 32px; } .mt-12 { margin-top: 64px; }
.mb-3 { margin-bottom: 12px; } .mb-6 { margin-bottom: 24px; } .mb-8 { margin-bottom: 32px; } .mb-12 { margin-bottom: 64px; }

.divider {
  height: 1px; background: var(--border-1); margin: 32px 0;
}
.divider-orange {
  height: 2px; background: var(--atom-campus); width: 64px;
}

/* Reveal-on-scroll */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s var(--ease-standard), transform .7s var(--ease-standard);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
[data-reveal-delay="1"] { transition-delay: .08s; }
[data-reveal-delay="2"] { transition-delay: .16s; }
[data-reveal-delay="3"] { transition-delay: .24s; }
[data-reveal-delay="4"] { transition-delay: .32s; }
[data-reveal-delay="5"] { transition-delay: .40s; }

/* Lang switching morph */
[data-i18n] {
  transition: opacity .2s ease;
}
.lang-morphing [data-i18n] { opacity: 0; }

/* Hide / show */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

/* Marquee */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--border-1);
  border-bottom: 1px solid var(--border-1);
  background: var(--neutral-900);
  color: #fff;
}
.marquee-track {
  display: flex; gap: 56px;
  animation: marquee 40s linear infinite;
  padding: 18px 0;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 14px; font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.marquee-track span { display: inline-flex; align-items: center; gap: 56px; }
.marquee-track span::after {
  content: "●"; color: var(--atom-campus); margin-left: 56px; font-size: 8px;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Page header (sub-page hero) */
.page-header {
  background: var(--neutral-900);
  color: #fff;
  padding: 120px 0 80px;
  position: relative; overflow: hidden;
}
.page-header h1 {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1; text-transform: uppercase;
  letter-spacing: -0.02em;
  color: #fff;
  overflow-wrap: break-word;
}
.page-header p { color: rgba(255,255,255,0.72); max-width: 640px; font-size: 18px; line-height: 1.55; }
.page-header .crumbs {
  font-family: var(--font-display); font-size: 12px; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--atom-campus); margin-bottom: 18px;
  display: flex; gap: 10px; align-items: center;
}
.page-header .crumbs a { color: rgba(255,255,255,0.6); text-decoration: none; }
.page-header .crumbs a:hover { color: #fff; }
.page-header-bg {
  position: absolute; inset: 0; pointer-events: none;
  opacity: 0.5;
  background:
    radial-gradient(700px 380px at 90% 20%, rgba(248,120,8,0.25), transparent 60%),
    radial-gradient(500px 280px at 10% 90%, rgba(248,120,8,0.1), transparent 60%);
}

/* Forms */
.field {
  display: flex; flex-direction: column; gap: 6px;
}
.field label {
  font-family: var(--font-display); font-size: 12px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--fg-2);
}
.field input, .field textarea, .field select {
  font: inherit; font-size: 15px;
  padding: 14px 16px;
  border: 1.5px solid var(--border-1);
  border-radius: var(--radius-md);
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--atom-campus);
  box-shadow: 0 0 0 3px var(--atom-campus-soft);
}
.field textarea { min-height: 120px; resize: vertical; }