:root {
  --ink: #04111f;
  --ink-2: #0a1a2e;
  --paper: #f6f7f9;
  --paper-2: #eef1f5;
  --line: rgba(4, 17, 31, 0.08);
  --mute: #5a6b7d;
  --mute-2: #7a8b9c;
  --brand: #0b4f8a;
  --brand-soft: #1a6aad;
  --teal: #1f8a7a;
  --gold: #b8954a;
  --white: #ffffff;
  --font-display: "Sora", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --max: 1080px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01" on;
}

::selection {
  background: rgba(11, 79, 138, 0.16);
}

/* —— Header —— */
.top {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem clamp(1.1rem, 4vw, 2.75rem);
  background: rgba(246, 247, 249, 0.82);
  backdrop-filter: blur(14px) saturate(1.15);
  -webkit-backdrop-filter: blur(14px) saturate(1.15);
  border-bottom: 1px solid var(--line);
}

.mark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--ink);
}

.mark-g {
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 0.45rem;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--brand-soft), var(--ink));
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0;
}

.mark-txt {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.nav {
  margin-left: auto;
  display: flex;
  gap: 1.35rem;
}

.nav a {
  color: var(--mute);
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: color 0.2s ease;
}

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

.lang {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.7);
}

.lang-btn {
  border: 0;
  background: transparent;
  padding: 0.35rem 0.7rem;
  font: inherit;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mute);
  cursor: pointer;
}

.lang-btn.is-on {
  background: var(--ink);
  color: #fff;
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: min(100svh, 880px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--ink);
  color: #fff;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-wash {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(90% 70% at 85% 15%, rgba(31, 138, 122, 0.28), transparent 55%),
    radial-gradient(70% 55% at 10% 80%, rgba(11, 79, 138, 0.45), transparent 50%),
    linear-gradient(165deg, #061525 0%, #04111f 55%, #0a2238 100%);
}

.hero-line {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 75%);
  animation: drift 36s linear infinite;
}

.hero-glow {
  position: absolute;
  right: -10%;
  top: 8%;
  width: min(55vw, 560px);
  height: 62%;
  background: linear-gradient(
    135deg,
    rgba(11, 79, 138, 0.35),
    rgba(31, 138, 122, 0.18)
  );
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
  filter: blur(2px);
  opacity: 0;
  animation: fade 1.2s var(--ease) 0.2s forwards;
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(5rem, 14vh, 7.5rem) clamp(1.2rem, 4.5vw, 2.75rem)
    clamp(3.2rem, 8vh, 5rem);
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0;
  animation: rise 0.9s var(--ease) 0.08s forwards;
}

.hero-brand {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 650;
  font-size: clamp(2.6rem, 8.5vw, 4.8rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  max-width: 12ch;
  opacity: 0;
  animation: rise 0.95s var(--ease) 0.16s forwards;
}

.hero-erp {
  display: inline-block;
  margin-left: 0.28em;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: -0.02em;
}

.hero-line-txt {
  margin: 1.35rem 0 0;
  max-width: 22rem;
  font-size: clamp(1.02rem, 2vw, 1.18rem);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.5;
  letter-spacing: -0.01em;
  opacity: 0;
  animation: rise 0.95s var(--ease) 0.3s forwards;
}

.btn {
  display: inline-flex;
  margin-top: 2rem;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: -0.01em;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
  transition: transform 0.25s var(--ease), background 0.2s ease;
  opacity: 0;
  animation: rise 0.95s var(--ease) 0.42s forwards;
}

.btn:hover {
  transform: translateY(-2px);
  background: #f0f4f8;
}

/* —— Story slider —— */
.story {
  padding: clamp(3.5rem, 9vh, 5.5rem) 0 clamp(2.5rem, 6vh, 3.5rem);
  background: var(--paper);
}

.story-head,
.pillars-inner,
.close-inner,
.foot-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 clamp(1.2rem, 4.5vw, 2.75rem);
}

.kicker {
  margin: 0 0 0.55rem;
  font-size: 0.68rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.story-head h2,
.pillars-inner h2,
.close-inner h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 650;
  font-size: clamp(1.65rem, 3.8vw, 2.35rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--ink);
  max-width: 18ch;
}

.slider {
  max-width: var(--max);
  margin: 2rem auto 0;
  padding: 0 clamp(1.2rem, 4.5vw, 2.75rem);
}

.slider-track {
  position: relative;
  min-height: 11.5rem;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(14px);
  pointer-events: none;
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}

.slide.is-on {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  position: relative;
}

.slide-idx {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  color: var(--mute-2);
}

.slide h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 650;
  letter-spacing: -0.025em;
  color: var(--brand);
}

.slide p {
  margin: 0.7rem 0 0;
  max-width: 34rem;
  color: var(--mute);
  font-size: 1.02rem;
  font-weight: 500;
  line-height: 1.55;
}

.slider-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.75rem;
  gap: 1rem;
}

.dots {
  display: flex;
  gap: 0.45rem;
}

.dot {
  width: 1.65rem;
  height: 3px;
  border: 0;
  border-radius: 99px;
  background: rgba(4, 17, 31, 0.12);
  cursor: pointer;
  padding: 0;
  transition: background 0.25s ease, width 0.25s var(--ease);
}

.dot.is-on {
  width: 2.4rem;
  background: var(--brand);
}

.slider-nav {
  display: flex;
  gap: 0.4rem;
}

.nav-btn {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.nav-btn:hover {
  background: var(--paper-2);
  border-color: rgba(4, 17, 31, 0.16);
}

.progress {
  margin-top: 1rem;
  height: 2px;
  background: rgba(4, 17, 31, 0.06);
  border-radius: 99px;
  overflow: hidden;
}

.progress i {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--brand), var(--teal));
  border-radius: inherit;
}

/* —— Pillars —— */
.pillars {
  padding: clamp(3rem, 8vh, 5rem) 0;
  background: linear-gradient(180deg, #fff 0%, var(--paper-2) 100%);
  border-top: 1px solid var(--line);
}

.support {
  margin: 0.85rem 0 0;
  max-width: 32rem;
  color: var(--mute);
  font-size: 1rem;
  font-weight: 500;
}

.pillar-rail {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 2.25rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.pillar {
  padding: 1.5rem 1.1rem 1.6rem;
  border-right: 1px solid var(--line);
  transition: background 0.25s ease;
}

.pillar:last-child {
  border-right: 0;
}

.pillar:hover {
  background: rgba(11, 79, 138, 0.04);
}

.pillar-num {
  display: block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  color: var(--mute-2);
  margin-bottom: 0.85rem;
}

.pillar h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.pillar p {
  margin: 0.4rem 0 0;
  font-size: 0.88rem;
  color: var(--mute);
  font-weight: 500;
}

/* —— Close —— */
.close {
  padding: clamp(4rem, 10vh, 6.5rem) 0;
  background: var(--ink);
  color: #fff;
}

.close .kicker {
  color: var(--gold);
}

.close h2 {
  color: #fff;
  max-width: 16ch;
}

.close-lead {
  margin: 1.25rem 0 0;
  max-width: 34rem;
  font-size: clamp(1.05rem, 2.1vw, 1.2rem);
  font-weight: 500;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.78);
  letter-spacing: -0.01em;
}

.close-soft {
  margin: 1.1rem 0 0;
  font-size: 0.98rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.5);
  max-width: 28rem;
}

/* —— Footer —— */
.foot {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: #030b14;
}

.foot-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  padding-top: 1.5rem;
  padding-bottom: 1.85rem;
}

.foot-brand {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.88);
}

.foot-tag {
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.84rem;
  font-weight: 500;
}

.foot-year {
  margin-left: auto;
  color: rgba(255, 255, 255, 0.35);
  font-size: 0.78rem;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade {
  to {
    opacity: 1;
  }
}

@keyframes drift {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 64px 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .eyebrow,
  .hero-brand,
  .hero-line-txt,
  .btn,
  .hero-glow {
    opacity: 1;
  }
}

@media (max-width: 820px) {
  .nav {
    display: none;
  }

  .hero {
    min-height: min(88svh, 720px);
    align-items: center;
  }

  .pillar-rail {
    grid-template-columns: 1fr 1fr;
  }

  .pillar:nth-child(2) {
    border-right: 0;
  }

  .pillar:nth-child(1),
  .pillar:nth-child(2) {
    border-bottom: 1px solid var(--line);
  }

  .foot-year {
    margin-left: 0;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .pillar-rail {
    grid-template-columns: 1fr;
  }

  .pillar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .pillar:last-child {
    border-bottom: 0;
  }
}