/* ==========================================================================
   Components
   ========================================================================== */

/* Unified photography treatment: photos arrive from different real sources
   (client event photos, campus visits, training sessions) with inconsistent
   color casts and exposure. A single subtle grade — slightly desaturated,
   warmed, with a touch more contrast — reads them as one deliberate
   photography system rather than a scrapbook of mismatched snapshots. */
.program-card__media img,
.program-photo img,
img.program-photo,
.case-block__media img {
  filter: saturate(0.92) contrast(1.04) sepia(0.05) brightness(0.99);
}

/* ---- Header / Nav ---- */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  background: rgba(251, 250, 246, 0.94);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard);
}
/* Masthead stripe: a printed-cover accent line at the very top edge —
   the kind of deliberate, bespoke detail a generic template rarely has. */
.site-header::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-navy-800) 0%, var(--color-gold-500) 50%, var(--color-navy-800) 100%);
}
.site-header.is-scrolled {
  box-shadow: 0 8px 24px -18px rgba(20, 34, 61, 0.4);
}
.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 96px;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}
.brand img { height: 40px; width: auto; }
.brand__name {
  font-family: var(--font-serif-zh);
  font-size: 1.2rem;
  letter-spacing: 0.02em;
  color: var(--color-navy-800);
  line-height: 1.2;
}
.brand__name small {
  display: block;
  font-family: var(--font-sans-en);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--color-text-muted);
  text-transform: uppercase;
  margin-top: 2px;
}

.site-header__right { display: flex; align-items: center; gap: var(--sp-5); }
.nav-desktop { display: flex; align-items: center; gap: var(--sp-6); }
.nav-desktop__list { display: flex; gap: var(--sp-5); }
.nav-desktop__list a {
  font-size: var(--fs-small);
  letter-spacing: 0.03em;
  padding-block: 6px;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-fast) var(--ease-standard), color var(--dur-fast) var(--ease-standard);
  color: var(--color-ink-700);
}
.nav-desktop__list a:hover,
.nav-desktop__list a[aria-current="page"] {
  color: var(--color-navy-800);
  border-color: var(--color-gold-500);
}

.lang-switch {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  font-size: var(--fs-caption);
  letter-spacing: 0.04em;
}
.lang-switch a {
  padding: 6px 12px;
  color: var(--color-text-muted);
}
.lang-switch a[aria-current="true"] {
  background: var(--color-navy-800);
  color: var(--color-paper-0);
}
.lang-switch--header {
  border: 1.5px solid var(--color-navy-800);
  font-size: var(--fs-small);
  font-weight: 500;
  flex-shrink: 0;
}
.lang-switch--header a {
  padding: 8px 14px;
  color: var(--color-navy-800);
}
.lang-switch--header a[aria-current="true"] {
  background: var(--color-navy-800);
  color: var(--color-paper-0);
}
.lang-switch--header a:not([aria-current="true"]):hover {
  background: var(--color-paper-50);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  flex-shrink: 0;
}
.nav-toggle__bars { width: 22px; height: 2px; background: var(--color-navy-800); position: relative; display: block; }
.nav-toggle__bars::before, .nav-toggle__bars::after {
  content: "";
  position: absolute; left: 0; width: 22px; height: 2px; background: var(--color-navy-800);
}
.nav-toggle__bars::before { top: -7px; }
.nav-toggle__bars::after { top: 7px; }

.nav-mobile {
  display: none;
  position: fixed;
  inset: 99px 0 0 0;
  background: var(--color-paper-0);
  z-index: 99;
  padding: var(--sp-6) var(--container-pad);
  overflow-y: auto;
}
.nav-mobile.is-open { display: block; }
.nav-mobile__list a {
  display: block;
  padding: var(--sp-4) 0;
  font-size: 1.15rem;
  font-family: var(--font-heading);
  border-bottom: 1px solid var(--color-border);
}
.nav-mobile .lang-switch { margin-top: var(--sp-6); }

@media (max-width: 900px) {
  .nav-desktop { display: none; }
  .nav-toggle { display: block; }
}

/* ---- Hero: one full-bleed photographic moment, not a text page followed
   by a picture. A real photo fills the frame; a directional scrim (darker
   toward the text, toward the bottom) keeps the headline legible while the
   building stays visible as a ghosted presence on the right — the way a
   masthead photograph works on a serious institutional site, not a stock
   "hero banner" glued under a typography block. ---- */
.hero--photo {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-top: calc(99px + var(--sp-7));
  min-height: clamp(600px, 94vh, 940px);
  overflow: hidden;
  background: var(--color-navy-950);
  box-sizing: border-box;
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.08) brightness(0.92);
}
.hero__scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(180deg, rgba(6,10,22,0.12) 0%, rgba(6,10,22,0.5) 55%, rgba(6,10,22,0.92) 100%),
    linear-gradient(90deg, rgba(6,10,22,0.8) 0%, rgba(6,10,22,0.35) 46%, rgba(6,10,22,0.05) 78%);
}
.hero__mark {
  position: absolute;
  top: calc(99px + var(--sp-7));
  right: var(--container-pad);
  z-index: 2;
  width: 110px; height: 96px;
  color: rgba(251,250,246,0.55);
}
.hero__mark svg { width: 100%; height: 100%; }
.hero__inner { position: relative; z-index: 2; padding-bottom: var(--sp-8); }
.hero__eyebrow {
  font-family: var(--font-sans-en);
  font-size: var(--fs-small);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--color-gold-400);
  margin-bottom: var(--sp-5);
  display: block;
}
.hero__title {
  font-size: clamp(2.8rem, 1.7rem + 5.6vw, 7rem);
  font-family: var(--font-serif-zh);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--color-paper-0);
  max-width: 15ch;
}
.hero__row {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--sp-7);
  margin-top: var(--sp-8);
  padding-top: var(--sp-7);
  border-top: 1px solid rgba(251,250,246,0.28);
  flex-wrap: wrap;
}
.hero__lede {
  font-size: var(--fs-body-lg);
  max-width: 46ch;
  color: rgba(251,250,246,0.86);
  line-height: var(--lh-body);
}
.hero__actions { display: flex; gap: var(--sp-4); flex-wrap: wrap; flex-shrink: 0; }
.hero__foot { position: relative; z-index: 2; border-top: 1px solid rgba(251,250,246,0.2); }
.hero__foot-inner {
  display: flex;
  justify-content: space-between;
  padding-block: var(--sp-4);
  font-family: var(--font-sans-en);
  font-size: var(--fs-caption);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(251,250,246,0.6);
}

@media (max-width: 900px) {
  .hero--photo { min-height: 88vh; padding-top: calc(99px + var(--sp-5)); }
  .hero__mark { width: 64px; height: 56px; top: calc(99px + var(--sp-4)); }
  .hero__row { flex-direction: column; align-items: flex-start; gap: var(--sp-5); }
  .hero__foot-inner { flex-direction: column; gap: 6px; }
}

/* ---- Section headings ---- */
.section-head { max-width: 760px; margin-bottom: var(--sp-8); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head h2 { margin-top: var(--sp-2); }

/* ---- Stat row ---- */
.stat {
  position: relative;
  border-top: 1px solid var(--color-border);
  padding-top: var(--sp-5);
}
.stat::before {
  content: "";
  position: absolute;
  top: -1px; left: 0;
  width: 22px; height: 2px;
  background: var(--color-gold-500);
}
.stat__num {
  font-family: var(--font-serif-en);
  font-size: clamp(2.2rem, 1.7rem + 1.9vw, 3.4rem);
  font-weight: 500;
  color: var(--color-navy-800);
  line-height: 1;
  letter-spacing: -0.01em;
}
.stat__label { margin-top: var(--sp-3); font-size: var(--fs-small); color: var(--color-text-muted); }
.stat__note { margin-top: var(--sp-1); font-size: var(--fs-caption); color: var(--color-ink-300); }

/* ---- Card (small utility box — used sparingly, e.g. contact channels) ---- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

/* Photo wrapper reused for the case-teaser and news thumbnails (aspect box +
   the shared unified-photography filter defined above). */
.program-card__media {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
}
.program-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ease-standard); }

/* ---- Six Solutions: a shared-edge ledger grid, not a deck of cards.
   Every cell sits flush against its neighbours; a single hairline is shared
   between them (like a course catalogue or spec table), instead of each
   item getting its own box, background and shadow — the single biggest
   visual tell of an assembled template. ---- */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
}
.solutions-item {
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--sp-7) var(--sp-6);
  display: flex;
  flex-direction: column;
  transition: background var(--dur-base) var(--ease-standard);
}
.solutions-item:hover { background: var(--color-paper-50); }
.solutions-item__num {
  font-family: var(--font-serif-en);
  color: var(--color-gold-600);
  font-size: 2rem;
  line-height: 1;
  display: block;
  margin-bottom: var(--sp-4);
}
.solutions-item__title { font-size: 1.2rem; margin-bottom: var(--sp-3); }
.solutions-item__desc { color: var(--color-text-muted); font-size: var(--fs-small); flex: 1; }
.solutions-item__link {
  margin-top: var(--sp-4);
  font-size: var(--fs-small);
  letter-spacing: 0.04em;
  color: var(--color-navy-800);
  border-bottom: 1px solid var(--color-gold-500);
  align-self: flex-start;
  transition: opacity var(--dur-fast) var(--ease-standard);
}
.solutions-item__link:hover { opacity: 0.65; }
@media (max-width: 900px) {
  .solutions-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .solutions-grid { grid-template-columns: 1fr; }
}

/* ---- Partner tier ---- */
.tier { margin-bottom: var(--sp-8); }
.tier__head { display: flex; align-items: baseline; gap: var(--sp-4); margin-bottom: var(--sp-5); }
.tier__head h3 { color: var(--color-navy-800); }
.partner-list { display: flex; flex-direction: column; }
.partner-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--sp-5);
  align-items: baseline;
  padding-block: var(--sp-5);
  border-top: 1px solid var(--color-border);
  transition: padding-left var(--dur-base) var(--ease-standard);
}
.partner-list > .partner-item:last-child { border-bottom: 1px solid var(--color-border); }
.partner-item:hover { padding-left: var(--sp-3); }
.partner-item__index {
  font-family: var(--font-serif-en);
  font-size: 1.1rem;
  color: var(--color-gold-500);
}
.partner-item__name { font-family: var(--font-heading); font-size: 1.15rem; margin-bottom: 6px; }
.partner-item__note { font-size: var(--fs-small); color: var(--color-text-muted); }
/* Dark-surface variant (used on navy backgrounds) */
.partner-item--on-dark { border-top-color: rgba(251,250,246,0.16); }
.partner-item--on-dark.partner-list > .partner-item:last-child,
.partner-list--on-dark > .partner-item:last-child { border-bottom-color: rgba(251,250,246,0.16); }
.partner-item--on-dark .partner-item__name { color: var(--color-paper-0); }
.partner-item--on-dark .partner-item__note { color: rgba(251,250,246,0.62); }

/* Legacy grid variant retained for smaller reference lists */
.partner-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: var(--sp-4); }
.partner-grid .partner-item {
  display: block;
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-border);
  padding: var(--sp-5);
  background: var(--color-surface);
  transition: border-color var(--dur-base) var(--ease-standard);
}
.partner-grid .partner-item:hover { border-top-color: var(--color-gold-500); }

/* ---- Case ---- */
.case-block {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: var(--sp-7);
  align-items: center;
  padding-block: var(--sp-8);
}
.case-block:nth-child(even) { direction: rtl; }
.case-block:nth-child(even) > * { direction: ltr; }
.case-block__media { aspect-ratio: 4/3; overflow: hidden; }
.case-block__media img { width: 100%; height: 100%; object-fit: cover; }
.case-block__tag { margin-bottom: var(--sp-3); }
@media (max-width: 900px) {
  .case-block, .case-block:nth-child(even) { grid-template-columns: 1fr; direction: ltr; }
}

/* ---- Statement: an "exaggerated minimalism" signature moment — one
   oversized line, a single accent color, extreme whitespace. No card, no
   border, no icon. The kind of confident, quiet-but-loud gesture generic
   templates never risk. ---- */
.statement {
  padding-block: var(--sp-10) var(--sp-10);
  background: var(--color-paper-0);
  text-align: center;
}
.statement .eyebrow { display: block; text-align: center; }
.statement__text {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(2.4rem, 1.6rem + 5vw, 6.5rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--color-navy-900);
  margin: var(--sp-6) auto 0;
  max-width: 18ch;
}
.statement__body {
  margin: var(--sp-7) auto 0;
  max-width: 42ch;
  color: var(--color-text-muted);
  font-size: var(--fs-body-lg);
  line-height: var(--lh-body);
  text-wrap: balance; /* prevents a lonely last line/character (widow) */
}
@media (max-width: 768px) {
  .statement { padding-block: var(--sp-8); }
}

/* ---- Logo wall (scrolling marquee) ---- */
.logo-wall {
  padding-block: var(--sp-6);
  overflow: hidden;
}
.logo-wall__label {
  text-align: center;
  font-family: var(--font-sans-en);
  font-size: var(--fs-caption);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--color-gold-400);
  margin-bottom: var(--sp-2);
}
.logo-wall__intro {
  text-align: center;
  font-size: var(--fs-small);
  color: rgba(251,250,246,0.6);
  max-width: 60ch;
  margin: 0 auto var(--sp-6);
}
.logo-wall__viewport {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.logo-wall__track {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
  width: max-content;
  animation: logo-wall-scroll 46s linear infinite;
}
.logo-wall__viewport:hover .logo-wall__track {
  animation-play-state: paused;
}
.logo-wall__item {
  font-family: var(--font-serif-en);
  font-size: 1.15rem;
  color: rgba(251,250,246,0.68);
  white-space: nowrap;
}
@keyframes logo-wall-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .logo-wall__track { animation: none; }
  .logo-wall__viewport { overflow-x: auto; }
}

/* ---- Footer ---- */
.site-footer {
  background: var(--color-navy-900);
  color: rgba(251,250,246,0.78);
  padding-block: var(--sp-8) var(--sp-6);
}
.site-footer a:hover { color: var(--color-paper-0); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--sp-6); }
.footer-grid h4 { color: var(--color-paper-0); font-size: var(--fs-small); letter-spacing: 0.04em; margin-bottom: var(--sp-4); text-transform: uppercase; font-family: var(--font-sans-en); }
.footer-grid li { margin-bottom: var(--sp-2); font-size: var(--fs-small); }
.footer-bottom {
  margin-top: var(--sp-8);
  padding-top: var(--sp-5);
  border-top: 1px solid rgba(251,250,246,0.14);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--sp-3);
  font-size: var(--fs-caption);
  color: rgba(251,250,246,0.5);
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ---- Form ---- */
.form-field { margin-bottom: var(--sp-5); }
.form-field label { display: block; font-size: var(--fs-small); margin-bottom: var(--sp-2); color: var(--color-ink-700); }
.form-field input, .form-field select, .form-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-sm);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--color-navy-800);
}
.form-status { margin-top: var(--sp-4); font-size: var(--fs-small); display: none; }
.form-status.is-success { display: block; color: #2f6b4f; }
.form-status.is-error { display: block; color: var(--color-seal-600); }

/* ---- Notice banner (placeholder/staging content) ---- */
.notice {
  border: 1px dashed var(--color-gold-500);
  background: var(--color-gold-100);
  padding: var(--sp-4) var(--sp-5);
  font-size: var(--fs-small);
  color: var(--color-navy-800);
}