/* MOTION TECH SYSTEM — corporate theme */

:root {
  /* Phong thủy Kim (Canh Ngọ · giờ Hợi): Kim chủ, Thổ nâng, hạn chế Thủy/Hỏa mạnh */
  --ink: #10131a;
  --ink-soft: #2c313c;
  --paper: #f7f7f8;
  --paper-2: #eef0f2;
  --mist: #d9dde3;
  --gold: #a4843f;
  --gold-bright: #dfc07a;
  --gold-deep: #7d6230;
  --silver: #9aa3ae;
  --metal: #c5ccd4;
  --stone: #b7b3a8;
  --text: #12151c;
  --muted: #3f4652;
  --line: rgba(16, 19, 26, 0.11);
  --header-h: 4.35rem;
  --shell: min(1160px, calc(100% - 2.5rem));
  --font-display: "Be Vietnam Pro", "Segoe UI", sans-serif;
  --font-body: "Be Vietnam Pro", "Segoe UI", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --radius-metal: 999px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.7;
  font-weight: 500;
  color: var(--text);
  background:
    radial-gradient(1000px 520px at 12% -12%, rgba(223, 192, 122, 0.16), transparent 55%),
    radial-gradient(900px 500px at 92% 8%, rgba(154, 163, 174, 0.18), transparent 52%),
    radial-gradient(700px 420px at 50% 100%, rgba(183, 179, 168, 0.12), transparent 60%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: auto;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--gold-deep);
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0;
  color: var(--ink);
  margin: 0 0 0.75rem;
}

p {
  margin: 0 0 1rem;
}

p:last-child {
  margin-bottom: 0;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 100;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}


/* Bilingual visibility */
html[data-lang="vi"] .t-en { display: none !important; }
html[data-lang="en"] .t-vi { display: none !important; }
.t { display: inline; }

.header-tools {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.7);
}

.lang-switch__btn {
  border: 0;
  background: transparent;
  min-width: 2.4rem;
  min-height: 2rem;
  padding: 0.35rem 0.55rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--muted);
  cursor: pointer;
}

.lang-switch__btn.is-active,
.lang-switch__btn[aria-pressed="true"] {
  background: var(--ink);
  color: #f7f6f3;
}


/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  backdrop-filter: blur(14px);
  background: rgba(245, 245, 246, 0.84);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(245, 245, 246, 0.95);
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.site-header__inner .brand { order: 1; }
.site-header__inner .site-nav { order: 2; margin-left: 0.5rem; }
.site-header__inner .header-tools { order: 3; margin-left: auto; }


.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--ink);
}

.brand:hover {
  color: var(--ink);
}

.brand__mark {
  width: 1.45rem;
  height: 1.45rem;
  border-radius: 50%;
  background:
    linear-gradient(145deg, #f0e6cc 0%, var(--gold-bright) 42%, var(--silver) 78%, #5c636e 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
  flex-shrink: 0;
  animation: markPulse 3.6s ease-in-out infinite;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
}

.brand__suffix {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav a {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
}

.site-nav a:hover {
  color: var(--gold-deep);
}

.site-nav__cta {
  padding: 0.55rem 1rem;
  background: var(--ink);
  color: #f7f6f3 !important;
  border-radius: 4px;
}

.site-nav__cta:hover {
  background: var(--gold-deep);
  color: #fff !important;
}

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 0.35rem;
  cursor: pointer;
}

.nav-toggle__label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 1.35rem;
  height: 2px;
  background: var(--ink);
  position: relative;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle__bars::before {
  top: -6px;
}

.nav-toggle__bars::after {
  top: 6px;
}

/* Hero — one composition, brand first, full-bleed visual */
.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #f4f3f0;
}

.hero__visual {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero__photo {
  position: absolute;
  inset: -4%;
  width: 108%;
  height: 108%;
  object-fit: cover;
  transform: scale(1.04);
  animation: heroKen 28s var(--ease) infinite alternate;
  filter: saturate(0.92) contrast(1.05);
}

.hero__svg {
  position: absolute;
  inset: 0;
  opacity: 0.28;
  mix-blend-mode: screen;
  pointer-events: none;
}

.hero__svg svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__grain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(105deg, rgba(10, 12, 16, 0.82) 0%, rgba(10, 12, 16, 0.55) 38%, rgba(10, 12, 16, 0.32) 62%, rgba(10, 12, 16, 0.55) 100%),
    linear-gradient(180deg, rgba(10, 12, 16, 0.25) 0%, rgba(10, 12, 16, 0.55) 55%, rgba(10, 12, 16, 0.88) 100%);
}

.hero__shine {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 35%, rgba(212, 181, 106, 0.12) 48%, transparent 62%);
  background-size: 220% 100%;
  animation: heroShine 9s ease-in-out infinite;
  mix-blend-mode: soft-light;
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 1.35rem;
  z-index: 2;
  width: 1.5rem;
  height: 2.4rem;
  transform: translateX(-50%);
  display: flex;
  justify-content: center;
  text-decoration: none;
}

.hero__scroll-line {
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(212,181,106,0.9), rgba(255,255,255,0.05));
  animation: scrollPulse 2.2s ease-in-out infinite;
}

@keyframes heroKen {
  from { transform: scale(1.04) translate3d(0, 0, 0); }
  to { transform: scale(1.1) translate3d(-1.5%, -1%, 0); }
}

@keyframes heroShine {
  0%, 100% { background-position: 120% 0; opacity: 0.35; }
  50% { background-position: -20% 0; opacity: 0.7; }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.35; transform: scaleY(0.7); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: clamp(3rem, 8vh, 5.5rem) 0 clamp(3.5rem, 9vh, 6rem);
  max-width: 42rem;
  margin-left: max(calc((100% - var(--shell)) / 2), 1.25rem);
  margin-right: auto;
  width: min(42rem, calc(100% - 2.5rem));
}

.hero__brand {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  letter-spacing: 0.04em;
  line-height: 1.15;
  color: #ffffff;
  text-shadow: none;
}

.hero__title {
  margin: 0 0 1.15rem;
  font-size: clamp(1.45rem, 3vw, 2rem);
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0;
  line-height: 1.3;
  text-shadow: none;
}

.hero__lead {
  margin: 0 0 1.85rem;
  max-width: 40rem;
  color: #f2f2f2;
  font-size: clamp(1.08rem, 2vw, 1.22rem);
  font-weight: 500;
  line-height: 1.75;
  text-shadow: none;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.7rem 1.25rem;
  border-radius: 4px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: linear-gradient(135deg, #e0c788 0%, var(--gold-bright) 45%, #b8954f 100%);
  color: var(--ink);
  background-size: 160% 160%;
  transition: transform 0.25s var(--ease), background-position 0.45s var(--ease), filter 0.25s var(--ease);
}

.btn--primary:hover {
  background-position: 100% 50%;
  filter: brightness(1.05);
  color: var(--ink);
}

.btn--ghost {
  background: transparent;
  color: #f4f3f0;
  border-color: rgba(244, 243, 240, 0.45);
}

.btn--ghost:hover {
  border-color: #f4f3f0;
  color: #fff;
}

.section--contact .btn--ghost {
  color: var(--ink);
  border-color: rgba(10, 31, 42, 0.25);
}

.section--contact .btn--ghost:hover {
  border-color: var(--ink);
  color: var(--ink);
}

/* Sections */
.section {
  padding: clamp(4rem, 10vh, 6.5rem) 0;
}

.section__head {
  max-width: 38rem;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.eyebrow {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}

.section__head h2,
.approach__copy h2,
.contact h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.45rem);
}

.section__lead {
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.7;
  font-weight: 500;
}

/* Capabilities — editorial rows, not cards */
.capability-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.capability {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1.25rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
  transition: padding 0.35s var(--ease), background 0.35s var(--ease);
}

.capability:hover {
  padding-left: 0.65rem;
  background: linear-gradient(90deg, rgba(212, 181, 106, 0.08), transparent 55%);
}

.capability__code {
  transition: transform 0.35s var(--ease), color 0.35s var(--ease);
}

.capability:hover .capability__code {
  transform: translateX(2px);
  color: var(--gold-deep);
}

.capability__code {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--gold);
  padding-top: 0.15rem;
}

.capability h3 {
  font-size: 1.28rem;
  margin-bottom: 0.4rem;
}

.capability p {
  color: var(--muted);
  max-width: 46rem;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* Approach */
.section--approach {
  background:
    linear-gradient(135deg, #12151a 0%, #1c2028 55%, #2a2f38 100%);
  color: #e4e2dc;
}

.section--approach h2,
.section--approach .eyebrow {
  color: #f7f6f3;
}

.section--approach .eyebrow {
  color: var(--gold-bright);
}

.approach {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.approach__copy p {
  color: rgba(228, 226, 220, 0.88);
  max-width: 34rem;
}

.approach__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.approach__steps li {
  padding: 1.1rem 0 1.1rem 1.15rem;
  border-left: 2px solid rgba(212, 181, 106, 0.65);
}

.approach__steps strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: #fff;
  margin-bottom: 0.3rem;
}

.approach__steps span {
  color: rgba(228, 226, 220, 0.78);
  font-size: 0.98rem;
}

/* Industries marquee */
.industry-marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 1.35rem 0;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.industry-marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 38s linear infinite;
}

.industry-marquee:hover .industry-marquee__track {
  animation-play-state: paused;
}

.industry-marquee__group {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  padding-right: 2.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: var(--ink);
  white-space: nowrap;
}

.industry-marquee__group > span::after {
  content: "";
  display: inline-block;
  width: 0.35rem;
  height: 0.35rem;
  margin-left: 2.5rem;
  border-radius: 50%;
  background: var(--gold-bright);
  vertical-align: middle;
  transform: translateY(-0.12rem);
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Field gallery */
.section--field {
  padding-bottom: clamp(3rem, 7vh, 4.5rem);
}

.field-gallery {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 0.85rem;
  width: min(1240px, calc(100% - 1.5rem));
  margin: 0 auto;
}

.field-shot {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: #12151a;
  min-height: clamp(240px, 36vw, 420px);
}

.field-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
  transition: transform 1.1s var(--ease), filter 0.6s var(--ease);
  filter: saturate(0.95) contrast(1.04);
}

.field-shot.is-visible img,
.field-shot:hover img {
  transform: scale(1);
}

.field-shot figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.5rem 1.25rem 1.15rem;
  color: #f7f6f3;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  background: linear-gradient(180deg, transparent, rgba(10, 12, 16, 0.78));
}

.field-shot--wide {
  min-height: clamp(280px, 42vw, 480px);
}

@media (max-width: 860px) {
  .field-gallery {
    grid-template-columns: 1fr;
  }
}

/* Contact */
.section--contact {
  padding-bottom: clamp(5rem, 12vh, 7.5rem);
}

.contact {
  max-width: 40rem;
}

.contact__lead {
  color: var(--muted);
  margin-bottom: 1.75rem;
}

.contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.section--contact .btn--primary {
  background: var(--ink);
  color: #f7f6f3;
}

.section--contact .btn--primary:hover {
  background: var(--gold-deep);
  color: #fff;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.25rem 0;
  background: rgba(255, 255, 255, 0.35);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-footer__brand p,
.site-footer__meta p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer a {
  text-decoration: none;
}

.brand--footer .brand__name {
  font-size: 0.85rem;
}

/* Page fallback */
.section--page {
  padding-top: 3rem;
}

.page-article {
  max-width: 42rem;
}

/* Reveal motion */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.75s var(--ease),
    transform 0.75s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal[data-reveal-dir="left"] {
  transform: translateX(-28px);
}

.reveal[data-reveal-dir="right"] {
  transform: translateX(28px);
}

.reveal[data-reveal-dir="left"].is-visible,
.reveal[data-reveal-dir="right"].is-visible {
  transform: none;
}

.hero .reveal:nth-child(1) { transition-delay: 0.08s; }
.hero .reveal:nth-child(2) { transition-delay: 0.18s; }
.hero .reveal:nth-child(3) { transition-delay: 0.3s; }
.hero .reveal:nth-child(4) { transition-delay: 0.42s; }

.capability-list .capability:nth-child(1) { transition-delay: 0.05s; }
.capability-list .capability:nth-child(2) { transition-delay: 0.1s; }
.capability-list .capability:nth-child(3) { transition-delay: 0.15s; }
.capability-list .capability:nth-child(4) { transition-delay: 0.2s; }
.capability-list .capability:nth-child(5) { transition-delay: 0.25s; }
.capability-list .capability:nth-child(6) { transition-delay: 0.3s; }

/* Scroll progress */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  z-index: 80;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-bright), #f0e6cc);
  transform-origin: left center;
  pointer-events: none;
}

/* Brand mark pulse */
@keyframes markPulse {
  0%, 100% { transform: scale(1); filter: brightness(1); }
  50% { transform: scale(1.06); filter: brightness(1.08); }
}

/* Nav underline */
.site-nav__list > li > a:not(.site-nav__cta) {
  position: relative;
}

.site-nav__list > li > a:not(.site-nav__cta)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 100%;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.site-nav__list > li > a:not(.site-nav__cta):hover::after {
  transform: scaleX(1);
}

/* Approach ambient spotlight */
.section--approach {
  position: relative;
  overflow: hidden;
}

.section--approach::before {
  content: "";
  position: absolute;
  width: 42vw;
  height: 42vw;
  max-width: 520px;
  max-height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 181, 106, 0.16) 0%, transparent 70%);
  left: var(--spot-x, 70%);
  top: var(--spot-y, 40%);
  transform: translate(-50%, -50%);
  pointer-events: none;
  transition: left 0.45s var(--ease), top 0.45s var(--ease);
  z-index: 0;
}

.section--approach > * {
  position: relative;
  z-index: 1;
}

.approach__steps li {
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease), background 0.35s var(--ease);
}

.approach__steps li:hover {
  border-left-color: var(--gold-bright);
  transform: translateX(4px);
  background: linear-gradient(90deg, rgba(212, 181, 106, 0.08), transparent 70%);
}

/* Field caption slide */
.field-shot figcaption {
  transform: translateY(12px);
  opacity: 0.85;
  transition: transform 0.6s var(--ease), opacity 0.6s var(--ease);
}

.field-shot.is-visible figcaption,
.field-shot:hover figcaption {
  transform: none;
  opacity: 1;
}

.field-shot::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid transparent;
  transition: border-color 0.45s var(--ease);
  pointer-events: none;
}

.field-shot:hover::after {
  border-color: rgba(212, 181, 106, 0.45);
}

/* Contact ambient */
.section--contact {
  position: relative;
  overflow: hidden;
}

.section--contact::before {
  content: "";
  position: absolute;
  inset: auto -10% -40% auto;
  width: min(520px, 70vw);
  height: min(520px, 70vw);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 181, 106, 0.14), transparent 68%);
  animation: contactOrb 10s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes contactOrb {
  from { transform: translate(-8%, 0) scale(1); }
  to { transform: translate(6%, -10%) scale(1.12); }
}

.section--contact .shell {
  position: relative;
  z-index: 1;
}

/* Button press feedback */
.btn:active {
  transform: translateY(1px) scale(0.985);
}

.btn--ghost {
  position: relative;
  overflow: hidden;
}

.btn--ghost::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.18) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 0.55s var(--ease);
}

.btn--ghost:hover::before {
  transform: translateX(120%);
}

/* Lang switch soft motion */
.lang-switch__btn {
  transition: background 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease);
}

.lang-switch__btn:hover {
  transform: translateY(-1px);
}

/* Page enter */
body {
  animation: pageIn 0.55s var(--ease) both;
}

@keyframes pageIn {
  from { opacity: 0.01; }
  to { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn:hover,
  .btn:active {
    transform: none;
  }

  .hero__photo,
  .hero__shine,
  .hero__scroll-line,
  .industry-marquee__track,
  .brand__mark,
  .section--contact::before,
  body {
    animation: none !important;
  }

  .scroll-progress {
    display: none;
  }
}

/* Responsive */
@media (max-width: 860px) {
  .approach {
    grid-template-columns: 1fr;
  }

  .capability {
    grid-template-columns: 3rem 1fr;
    gap: 0.85rem;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    background: rgba(245, 245, 246, 0.98);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.25rem 1.25rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s var(--ease), opacity 0.35s var(--ease);
  }

  .site-nav.is-open {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
  }

  .hero__content {
    margin-left: 1.25rem;
  }

  .hero__scroll {
    display: none;
  }
}

@media (max-width: 520px) {
  :root {
    --shell: min(1120px, calc(100% - 2rem));
  }

  .hero__actions,
  .contact__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }
}

/* ===== Expanded content sections (v1.5) ===== */

.section--stats {
  padding: clamp(2.5rem, 6vh, 3.75rem) 0;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.4);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat {
  position: relative;
  padding: 1.25rem 1rem 1.25rem 0;
}

.stat::before {
  content: "";
  position: absolute;
  left: -0.35rem;
  top: 0.15rem;
  width: 3.4rem;
  height: 3.4rem;
  border-radius: 50%;
  border: 1px solid rgba(164, 132, 63, 0.35);
  background: radial-gradient(circle at 35% 30%, rgba(223, 192, 122, 0.22), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.stat__value,
.stat__label {
  position: relative;
  z-index: 1;
}

.stat__value {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 2.75rem);
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1;
}

.stat__value [data-count] {
  color: var(--gold-deep);
}

.stat__label {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  font-weight: 500;
  line-height: 1.45;
  max-width: 12rem;
}

/* Solutions — editorial media bands, not cards */
.section--solutions {
  padding-top: clamp(3rem, 7vh, 4.5rem);
  padding-bottom: 0;
}

.section--solutions .section__head {
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.solution {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 0;
  align-items: stretch;
  margin-bottom: 0.85rem;
  background: #0f1217;
  color: #f2f2f2;
  overflow: hidden;
}

.solution--flip {
  direction: rtl;
}

.solution--flip > * {
  direction: ltr;
}

.solution__media {
  margin: 0;
  min-height: clamp(260px, 38vw, 460px);
  overflow: hidden;
}

.solution__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.06);
  transition: transform 1.2s var(--ease), filter 0.5s var(--ease);
  filter: saturate(0.94) contrast(1.05);
}

.solution.is-visible .solution__media img,
.solution:hover .solution__media img {
  transform: scale(1);
}

.solution__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.75rem, 4vw, 3rem) clamp(1.25rem, 3vw, 2.5rem);
  width: min(520px, 100%);
  margin: 0;
}

.solution__code {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--gold-bright);
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.solution__body h3 {
  color: #fff;
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  margin-bottom: 0.75rem;
}

.solution__body > p {
  color: rgba(242, 242, 242, 0.88);
  margin-bottom: 1.15rem;
}

.solution__points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.solution__points li {
  position: relative;
  padding-left: 1.1rem;
  color: rgba(242, 242, 242, 0.9);
  font-weight: 500;
}

.solution__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--gold-bright);
}

.field-gallery--4 {
  grid-template-columns: repeat(2, 1fr);
}

.field-gallery--4 .field-shot {
  min-height: clamp(220px, 32vw, 380px);
}

.approach__timeline {
  position: relative;
}

.approach__n {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--gold-bright);
  margin-bottom: 0.35rem;
  letter-spacing: 0.06em;
}

.approach__steps li {
  position: relative;
}

.approach__steps li.is-visible {
  animation: stepIn 0.55s var(--ease) both;
}

@keyframes stepIn {
  from { opacity: 0.4; transform: translateX(-12px); }
  to { opacity: 1; transform: none; }
}

/* Stack */
.section--stack {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.5), rgba(235,236,239,0.85));
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem 1.75rem;
  border-top: 1px solid var(--line);
  padding-top: 1.75rem;
}

.stack-col h3 {
  font-size: 1.1rem;
  margin-bottom: 0.85rem;
  padding-bottom: 0.55rem;
  border-bottom: 2px solid var(--gold-bright);
  display: inline-block;
}

.stack-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.stack-col li {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.98rem;
  padding: 0.2rem 0;
  transition: color 0.25s var(--ease), transform 0.25s var(--ease);
}

.stack-col li:hover {
  color: var(--ink);
  transform: translateX(3px);
}

/* FAQ */
.faq-list {
  display: grid;
  gap: 0.65rem;
  max-width: 46rem;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.55);
  padding: 0;
  overflow: hidden;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.faq-item[open] {
  border-color: rgba(154, 123, 60, 0.45);
  background: #fff;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 1rem 1.15rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  position: relative;
  padding-right: 2.5rem;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gold);
  font-weight: 700;
  font-size: 1.25rem;
  transition: transform 0.3s var(--ease);
}

.faq-item[open] summary::after {
  content: "–";
}

.faq-item p {
  margin: 0;
  padding: 0 1.15rem 1.15rem;
  color: var(--muted);
  line-height: 1.7;
}

/* Contact grid */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin: 0 0 1.75rem;
}

.contact-card {
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.contact-card__label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.contact-card a,
.contact-card p {
  margin: 0;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.02rem;
}

.contact-card a:hover {
  color: var(--gold-deep);
}

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

  .solution,
  .solution--flip {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .stats-grid,
  .stack-grid,
  .field-gallery--4 {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .approach__steps li.is-visible {
    animation: none;
  }
}

.site-nav a.is-active-nav:not(.site-nav__cta) {
  color: var(--gold-deep);
}

.site-nav a.is-active-nav:not(.site-nav__cta)::after {
  transform: scaleX(1);
}

/* ===== v1.6 Metal refinement + denser content ===== */

.field-gallery--dense {
  grid-template-columns: repeat(4, 1fr);
  gap: 0.7rem;
}

.field-gallery--dense .field-shot {
  min-height: clamp(180px, 22vw, 280px);
}

.section--why {
  padding: clamp(3.5rem, 8vh, 5.5rem) 0;
}

.why {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.why__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  min-height: clamp(280px, 40vw, 460px);
  border-radius: 2px;
  background: #12151a;
}

.why__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
  transition: transform 1.1s var(--ease);
}

.why.is-visible .why__media img,
.why:hover .why__media img {
  transform: scale(1.04);
}

.why__rings {
  position: absolute;
  inset: 12% auto auto 12%;
  width: 42%;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(223, 192, 122, 0.45);
  box-shadow:
    0 0 0 18px rgba(223, 192, 122, 0.08),
    0 0 0 36px rgba(154, 163, 174, 0.06);
  pointer-events: none;
  animation: ringPulse 5.5s ease-in-out infinite;
}

@keyframes ringPulse {
  0%, 100% { transform: scale(1); opacity: 0.85; }
  50% { transform: scale(1.06); opacity: 1; }
}

.why__list {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.why__list li {
  position: relative;
  padding-left: 1.35rem;
  font-weight: 600;
  color: var(--ink);
}

.why__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--gold-bright), var(--silver));
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.case {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 0;
  overflow: hidden;
  background: #12151a;
  color: #f2f2f2;
  min-height: 220px;
  transition: transform 0.4s var(--ease);
}

.case:hover {
  transform: translateY(-3px);
}

.case__media {
  margin: 0;
  min-height: 100%;
  overflow: hidden;
}

.case__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.case:hover .case__media img {
  transform: scale(1.06);
}

.case__body {
  padding: 1.25rem 1.2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.case__body h3 {
  color: #fff;
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.case__result {
  color: rgba(242, 242, 242, 0.9);
  margin-bottom: 0.65rem;
  font-size: 0.98rem;
}

.case__stack {
  margin: 0;
  color: var(--gold-bright);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.prin-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem 1.5rem;
  border-top: 1px solid var(--line);
  padding-top: 1.75rem;
}

.prin {
  padding: 0.85rem 0.85rem 0.85rem 0;
  border-bottom: 1px solid var(--line);
  transition: transform 0.3s var(--ease);
}

.prin:hover {
  transform: translateY(-2px);
}

.prin__n {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 1px solid rgba(164, 132, 63, 0.45);
  color: var(--gold-deep);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.82rem;
  margin-bottom: 0.55rem;
  background: radial-gradient(circle at 30% 30%, rgba(223, 192, 122, 0.2), transparent 65%);
}

.prin strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--ink);
  margin-bottom: 0.35rem;
}

.prin p {
  color: var(--muted);
  font-size: 0.96rem;
  margin: 0;
}

/* Magnetic button polish */
.btn--primary {
  box-shadow: 0 8px 24px rgba(125, 98, 48, 0.18);
}

.btn--primary:hover {
  box-shadow: 0 10px 28px rgba(125, 98, 48, 0.28);
}

/* Floating metal orbs on approach */
.section--approach::after {
  content: "";
  position: absolute;
  right: 8%;
  bottom: 12%;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 1px solid rgba(223, 192, 122, 0.25);
  box-shadow: inset 0 0 0 24px rgba(154, 163, 174, 0.05);
  animation: ringPulse 7s ease-in-out infinite reverse;
  pointer-events: none;
  z-index: 0;
}

@media (max-width: 980px) {
  .why,
  .cases-grid,
  .prin-grid,
  .field-gallery--dense {
    grid-template-columns: 1fr 1fr;
  }

  .case {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .why,
  .cases-grid,
  .prin-grid,
  .field-gallery--dense {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .why__rings,
  .section--approach::after {
    animation: none !important;
  }
}