/* ============================================================
   MAIN LAYOUT — Header, Hero, Sections, Footer
   ============================================================ */

/* ---------- NOISE / BACKGROUND MESH ---------- */
.bg-mesh {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(1200px circle at 10% 0%, rgba(107, 138, 253, 0.08), transparent 50%),
    radial-gradient(900px circle at 90% 30%, rgba(212, 255, 58, 0.06), transparent 45%),
    radial-gradient(800px circle at 50% 100%, rgba(255, 91, 46, 0.05), transparent 50%);
}

main {
  position: relative;
  z-index: var(--z-base);
}

/* ============================================================
   HEADER — sticky, minimal, with locale + cta
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  padding: var(--space-4) 0;
  transition: background var(--dur-base) var(--ease-out-quart),
              backdrop-filter var(--dur-base),
              border var(--dur-base);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(10, 10, 15, 0.78);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--color-line-soft);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
}

.site-header__brand-mark {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background:
    conic-gradient(from 45deg, var(--color-acid), var(--color-ember), var(--color-electric), var(--color-acid));
  position: relative;
  overflow: hidden;
  transform: rotate(0deg);
  transition: transform var(--dur-slow) var(--ease-out-expo);
}

.site-header__brand:hover .site-header__brand-mark {
  transform: rotate(180deg);
}

.site-header__brand-mark::after {
  content: "";
  position: absolute;
  inset: 4px;
  background: var(--color-bg);
  border-radius: 2px;
}

.site-header__brand-mark::before {
  content: "";
  position: absolute;
  inset: 8px;
  background: var(--color-acid);
  border-radius: 1px;
  z-index: 1;
}

.site-header__brand em {
  font-style: italic;
  font-family: var(--font-display);
  font-variation-settings: "opsz" 144, "SOFT" 100;
  color: var(--color-acid);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.site-nav__link {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  position: relative;
  padding: var(--space-2) 0;
  transition: color var(--dur-fast);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-acid);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur-base) var(--ease-out-quart);
}

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

.site-nav__link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.site-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .site-header__actions {
    gap: var(--space-2);
  }
  .site-header__actions .btn--sm {
    display: none; /* hide CTA on very small screens, mobile toggle is enough */
  }
}

.lang-switcher {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-line-soft);
  border-radius: var(--radius-full);
  padding: 3px;
  gap: 2px;
}

.lang-switcher__btn {
  padding: 5px 10px;
  font-size: var(--text-2xs);
  font-family: var(--font-mono);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-ink-mute);
  border-radius: var(--radius-full);
  transition: color var(--dur-base), background var(--dur-base);
  line-height: 1;
}

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

.lang-switcher__btn.is-active {
  color: var(--color-bg);
  background: var(--color-acid);
}

.lang-switcher__thumb {
  display: none;
}

.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.mobile-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--color-ink);
  transition: transform var(--dur-base), opacity var(--dur-base);
}

.mobile-toggle.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.mobile-toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.mobile-toggle.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

@media (max-width: 960px) {
  .site-nav__list { display: none; }
  .mobile-toggle { display: flex; }
  .site-nav__list.is-mobile-open {
    display: flex;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: var(--space-8) var(--gutter);
    z-index: var(--z-header);
    gap: var(--space-4);
    align-items: flex-start;
  }
  .site-nav__list.is-mobile-open .site-nav__link {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
  }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  padding-top: calc(var(--space-20) + 40px);
  padding-bottom: var(--space-16);
  overflow: hidden;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line-soft) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: center;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  opacity: 0.5;
  pointer-events: none;
}

.hero__container {
  position: relative;
}

.hero__marquee {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-mute);
  margin-bottom: var(--space-8);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

.hero__marquee-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-acid);
  box-shadow: 0 0 12px var(--color-acid);
  animation: pulse 2s var(--ease-in-out-quart) infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero__title {
  font-size: var(--text-display);
  line-height: 0.9;
  letter-spacing: -0.045em;
  font-weight: 400;
  margin-bottom: var(--space-6);
  font-variation-settings: "opsz" 144, "SOFT" 0;
}

.hero__title .line {
  display: block;
  overflow: hidden;
}

.hero__title .line > span {
  display: inline-block;
}

.hero__title em {
  font-style: italic;
  font-variation-settings: "opsz" 144, "SOFT" 100;
  color: var(--color-acid);
  position: relative;
}

.hero__title em::after {
  content: "";
  position: absolute;
  bottom: 0.05em;
  left: 0;
  right: 0;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  animation: underline-in 1.2s 0.8s var(--ease-out-expo) forwards;
}

@keyframes underline-in {
  to { transform: scaleX(1); }
}

.hero__lede {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-ink-soft);
  max-width: 58ch;
  margin-bottom: var(--space-8);
}

.hero__lede strong {
  color: var(--color-ink);
  font-weight: 600;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-12);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-6);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-line);
  max-width: 900px;
}

.hero__stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.hero__stat-number {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 500;
  letter-spacing: var(--tracking-tighter);
  color: var(--color-acid);
  line-height: 1;
}

.hero__stat-label {
  font-size: var(--text-xs);
  color: var(--color-ink-mute);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.hero__badge {
  position: absolute;
  right: var(--gutter);
  top: calc(var(--space-20) + 60px);
  display: flex;
  width: 160px;
  height: 160px;
  align-items: center;
  justify-content: center;
  animation: rotate 18s linear infinite;
}

.hero__badge svg {
  width: 100%;
  height: 100%;
}

.hero__badge-core {
  position: absolute;
  inset: 30%;
  border-radius: 50%;
  background: var(--color-acid);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-bg);
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-md);
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@media (max-width: 900px) {
  .hero__badge { display: none; }
}

/* ============================================================
   SECTION SYSTEM
   ============================================================ */
.section {
  padding: var(--space-16) 0;
  position: relative;
}

.section--sm { padding: var(--space-12) 0; }
.section--lg { padding: var(--space-20) 0; }

.section__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: var(--space-8);
  margin-bottom: var(--space-10);
  align-items: end;
}

@media (max-width: 900px) {
  .section__head {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

.section__meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.section__index {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-mute);
  letter-spacing: var(--tracking-wider);
}

.section__title {
  font-size: clamp(2.25rem, 5vw, var(--text-4xl));
  line-height: 0.95;
  letter-spacing: var(--tracking-tighter);
  max-width: 16ch;
}

.section__desc {
  font-size: var(--text-lg);
  color: var(--color-ink-soft);
  line-height: var(--leading-relaxed);
  max-width: 52ch;
}

/* ============================================================
   SERVICES / HOW IT WORKS
   ============================================================ */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

@media (max-width: 900px) {
  .process { grid-template-columns: 1fr; }
}

.process__step {
  padding: var(--space-7) var(--space-5);
  border-right: 1px solid var(--color-line);
  position: relative;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: background var(--dur-base) var(--ease-out-quart);
}

.process__step:last-child {
  border-right: none;
}

@media (max-width: 900px) {
  .process__step {
    border-right: none;
    border-bottom: 1px solid var(--color-line);
    min-height: auto;
  }
  .process__step:last-child { border-bottom: none; }
}

.process__step:hover {
  background: var(--color-surface);
}

.process__step-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-mute);
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.process__step-num::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--color-line);
  transition: background var(--dur-base), border-color var(--dur-base);
}

.process__step:hover .process__step-num::after {
  background: var(--color-acid);
  border-color: var(--color-acid);
}

.process__step-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-3);
  letter-spacing: var(--tracking-tight);
}

.process__step-desc {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  line-height: var(--leading-relaxed);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-bg-deep);
  border-top: 1px solid var(--color-line);
  padding: var(--space-12) 0 var(--space-6);
  margin-top: var(--space-16);
  position: relative;
}

.site-footer__giant {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(5rem, 18vw, 18rem);
  line-height: 0.85;
  letter-spacing: -0.06em;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-line);
  text-stroke: 1px var(--color-line);
  font-variation-settings: "opsz" 144, "SOFT" 100;
  text-align: center;
  margin-bottom: var(--space-10);
  user-select: none;
  pointer-events: none;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--color-line);
}

@media (max-width: 900px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 600px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
}

.site-footer__col h4 {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-ink-mute);
  margin-bottom: var(--space-4);
}

.site-footer__col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer__col a {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  transition: color var(--dur-fast);
}

.site-footer__col a:hover {
  color: var(--color-acid);
}

.site-footer__about {
  max-width: 36ch;
}

.site-footer__about p {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  line-height: var(--leading-relaxed);
  margin-top: var(--space-4);
}

.site-footer__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-xs);
  color: var(--color-ink-mute);
  font-family: var(--font-mono);
  letter-spacing: var(--tracking-wide);
  flex-wrap: wrap;
  gap: var(--space-3);
}

.site-footer__meta a:hover { color: var(--color-acid); }

/* ============================================================
   BANNER / MARQUEE STRIP
   ============================================================ */
.strip {
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  overflow: hidden;
  background: var(--color-bg-deep);
}

.strip__track {
  display: flex;
  gap: var(--space-8);
  animation: scroll-strip 40s linear infinite;
  white-space: nowrap;
  will-change: transform;
}

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

.strip__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-2xl);
  color: var(--color-ink);
  flex-shrink: 0;
}

.strip__item .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-acid);
  flex-shrink: 0;
}