/* ═══════════════════════════════════════════════════════════
   Playcity Block — 2026 Join Campaign
   Design system · full-screen immersive
   ═══════════════════════════════════════════════════════════ */

/* ── Reset & Tokens ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* palette */
  --c-bg: #ffffff;
  --c-bg-alt: #f5f5f7;
  --c-bg-dark: #0a0a0a;
  --c-bg-card: #f9f9fb;
  --c-text: #1d1d1f;
  --c-text-2: #6e6e73;
  --c-text-3: #86868b;
  --c-border: #e5e5ea;
  --c-accent: #0071e3;
  --c-accent-hover: #0077ed;
  --c-green: #30d158;
  --c-surface: rgba(255, 255, 255, .72);

  /* dark-mode surfaces */
  --c-dark-card: rgba(255, 255, 255, .04);
  --c-dark-card-hover: rgba(255, 255, 255, .07);
  --c-dark-border: rgba(255, 255, 255, .08);

  /* typography */
  --ff-sans: 'Inter', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --ff-kr: 'Noto Sans KR', 'Inter', sans-serif;

  /* spacing */
  --section-v: clamp(100px, 12vw, 180px);
  --content-max: 1240px;
  --content-wide: 1440px;
  --gutter: clamp(20px, 4vw, 48px);

  /* radius */
  --r-xs: 8px;
  --r-sm: 12px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;
  --r-pill: 999px;

  /* transitions */
  --ease: cubic-bezier(.25, .1, .25, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --dur: .3s;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--ff-kr);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

button {
  font-family: inherit;
}

.hide-mobile {
  display: inline;
}

@media (max-width: 640px) {
  .hide-mobile {
    display: none;
  }
}


/* ─────────────────────────────────────────────
   NAVIGATION
   ───────────────────────────────────────────── */
.c-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.c-nav.is-scrolled {
  background: var(--c-surface);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  box-shadow: 0 1px 0 var(--c-border);
}

.c-nav__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 56px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.c-nav__brand {
  display: inline-flex;
  align-items: center;
  position: relative;
  height: 24px;
  margin-right: auto;
}

.c-nav__logo {
  display: block;
  height: 100%;
  width: auto;
}

.c-nav__logo--dark {
  display: none;
}

.c-nav.is-scrolled .c-nav__logo--light {
  display: none;
}

.c-nav.is-scrolled .c-nav__logo--dark {
  display: block;
}

.c-nav__links {
  display: flex;
  gap: 4px;
}

.c-nav__links a {
  font-size: 14px;
  font-weight: 500;
  color: rgba(245, 248, 255, .85);
  padding: 6px 12px;
  border-radius: var(--r-pill);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.c-nav__links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, .14);
}

.c-nav__actions {
  display: flex;
  gap: 8px;
  margin-left: 8px;
}

.c-nav__btn {
  font-size: 13px;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(255, 255, 255, .34);
  color: rgba(245, 248, 255, .92);
  background: rgba(5, 10, 18, .22);
  transition: all var(--dur) var(--ease);
}

.c-nav__btn:hover {
  background: rgba(255, 255, 255, .15);
}

.c-nav__btn--filled {
  background: rgba(255, 255, 255, .94);
  border-color: rgba(255, 255, 255, .94);
  color: #0f1218;
}

.c-nav__btn--filled:hover {
  background: #fff;
  border-color: #fff;
}

.c-nav.is-scrolled .c-nav__links a {
  color: var(--c-text-2);
}

.c-nav.is-scrolled .c-nav__links a:hover {
  color: var(--c-text);
  background: rgba(0, 0, 0, .04);
}

.c-nav.is-scrolled .c-nav__btn {
  border-color: var(--c-border);
  color: var(--c-text);
  background: transparent;
}

.c-nav.is-scrolled .c-nav__btn:hover {
  background: rgba(0, 0, 0, .04);
}

.c-nav.is-scrolled .c-nav__btn--filled {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #fff;
}

.c-nav.is-scrolled .c-nav__btn--filled:hover {
  background: var(--c-accent-hover);
  border-color: var(--c-accent-hover);
}


/* ─────────────────────────────────────────────
   HERO
   ───────────────────────────────────────────── */
.c-hero {
  --c-hero-overlay: linear-gradient(180deg, rgba(0, 0, 0, .30) 0%, rgba(0, 0, 0, .50) 100%);
  min-height: 100vh;
  min-height: 100svh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px var(--gutter) 60px;
  position: relative;
  overflow: hidden;
  background: #000;
}

.c-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.c-hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--c-hero-overlay);
  z-index: 2;
}

.c-hero__slide {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0;
  z-index: 1;
  will-change: opacity, transform;
  backface-visibility: hidden;
}

.c-hero__slide--1 {
  background-image: url('/static/images/img-9f87845bb019ad6901eb2f0e3c79d7bf.webp');
  animation: c-hero-slide-1 20s linear infinite, c-hero-motion-1 20s ease-in-out infinite;
}

.c-hero__slide--2 {
  background-image: url('/static/images/img-4722e514475787a2accce9be77a032fe.webp');
  animation: c-hero-slide-2 20s linear infinite, c-hero-motion-2 20s ease-in-out infinite;
}

.c-hero__slide--3 {
  background-image: url('/static/images/img-da92954c264493f2a76e914ccc6b0ce2.webp');
  animation: c-hero-slide-3 20s linear infinite, c-hero-motion-3 20s ease-in-out infinite;
}

.c-hero__slide--4 {
  background-image: url('/static/images/img-326a1161fc4c5fc38dd707e1c695970a.webp');
  animation: c-hero-slide-4 20s linear infinite, c-hero-motion-4 20s ease-in-out infinite;
}

@keyframes c-hero-slide-1 {
  0%,
  22% {
    opacity: 1;
  }

  25%,
  100% {
    opacity: 0;
  }
}

@keyframes c-hero-slide-2 {
  0%,
  22% {
    opacity: 0;
  }

  25%,
  47% {
    opacity: 1;
  }

  50%,
  100% {
    opacity: 0;
  }
}

@keyframes c-hero-slide-3 {
  0%,
  47% {
    opacity: 0;
  }

  50%,
  72% {
    opacity: 1;
  }

  75%,
  100% {
    opacity: 0;
  }
}

@keyframes c-hero-slide-4 {
  0%,
  72% {
    opacity: 0;
  }

  75%,
  100% {
    opacity: 1;
  }
}

@keyframes c-hero-motion-1 {
  0% {
    transform: scale(1.1);
  }

  25%,
  100% {
    transform: scale(1.03);
  }
}

@keyframes c-hero-motion-2 {
  0%,
  25% {
    transform: scale(1.08) translate(-2%, 0);
  }

  50%,
  100% {
    transform: scale(1.02) translate(2%, 0);
  }
}

@keyframes c-hero-motion-3 {
  0%,
  50% {
    transform: scale(1.1);
  }

  75%,
  100% {
    transform: scale(1.02);
  }
}

@keyframes c-hero-motion-4 {
  0%,
  75% {
    transform: scale(1.08) translate(2%, 0);
  }

  100% {
    transform: scale(1.02) translate(-1%, 0);
  }
}

/* soft radial glow */
.c-hero::before {
  content: '';
  position: absolute;
  width: 800px;
  height: 800px;
  top: -200px;
  right: -200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 113, 227, .06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.c-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 820px;
  padding-bottom: 72px;
}

.c-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: rgba(242, 246, 255, .94);
  border: 1px solid rgba(255, 255, 255, .42);
  background: rgba(7, 11, 18, .26);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-radius: var(--r-pill);
  padding: 5px 14px 5px 5px;
  margin-bottom: 24px;
}

.c-hero__badge-tag {
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  color: #0e1117;
  background: rgba(255, 255, 255, .96);
  padding: 4px 8px;
  border-radius: var(--r-pill);
  letter-spacing: .02em;
}

.c-hero__title {
  font-family: var(--ff-kr);
  font-size: clamp(40px, 7vw, 80px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.035em;
  color: #f6f8fc;
  text-shadow: 0 8px 24px rgba(0, 0, 0, .26);
}

.c-hero__desc {
  margin-top: 20px;
  font-size: clamp(16px, 1.6vw, 20px);
  color: rgba(241, 247, 255, .96);
  line-height: 1.6;
  text-shadow: 0 3px 14px rgba(0, 0, 0, .22);
}

/* server address bar */
.c-hero__server {
  margin: 32px auto 0;
  max-width: 520px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, .33);
  border-radius: 14px;
  padding: 6px;
  background: rgba(8, 12, 19, .4);
  box-shadow: 0 12px 26px rgba(0, 0, 0, .22);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.c-hero__server:hover {
  border-color: rgba(255, 255, 255, .52);
  box-shadow: 0 16px 28px rgba(0, 0, 0, .26);
}

.c-hero__server-address {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Instrument Sans', 'Inter', sans-serif;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: .004em;
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .1);
  color: #f7f9fd;
  user-select: all;
}

.c-hero__server-address::before {
  content: '접속 주소';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  font-family: 'Noto Sans KR', 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  white-space: nowrap;
  color: rgba(248, 250, 255, .95);
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .2);
}

.c-hero__server-copy {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 48px;
  padding: 0 16px;
  background: rgba(255, 255, 255, .94);
  color: #11141a;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, .94);
  border-radius: 10px;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
  white-space: nowrap;
}

.c-hero__server-copy:hover {
  background: #fff;
  border-color: #fff;
}

.c-hero__copy-feedback {
  margin-top: 10px;
  font-size: 13px;
  min-height: 1.2em;
  color: #d7ffeb;
  text-shadow: 0 1px 4px rgba(0, 0, 0, .24);
}

/* CTA group */
.c-hero__cta {
  margin-top: 28px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

.c-hero__legal {
  position: absolute;
  left: 50%;
  bottom: 48px;
  transform: translateX(-50%);
  width: min(980px, calc(100vw - (var(--gutter) * 2)));
  font-size: 10px;
  line-height: 1.6;
  letter-spacing: .01em;
  color: rgba(208, 216, 230, .62);
  text-align: center;
  z-index: 2;
}

.c-hero .c-btn--ghost {
  color: rgba(245, 248, 255, .95);
  border-color: rgba(255, 255, 255, .42);
  background: rgba(10, 14, 22, .22);
}

.c-hero .c-btn--ghost:hover {
  color: #fff;
  background: rgba(255, 255, 255, .14);
  border-color: rgba(255, 255, 255, .58);
}


/* ─────────────────────────────────────────────
   BUTTONS
   ───────────────────────────────────────────── */
.c-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  padding: 12px 22px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
  white-space: nowrap;
}

.c-btn--primary {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}

.c-btn--primary:hover {
  background: var(--c-accent-hover);
  border-color: var(--c-accent-hover);
}

.c-btn--ghost {
  background: transparent;
  color: var(--c-text);
  border-color: var(--c-border);
}

.c-btn--ghost:hover {
  background: rgba(0, 0, 0, .04);
  border-color: #c5c5ca;
}

.c-btn--outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, .2);
}

.c-btn--outline:hover {
  background: rgba(255, 255, 255, .08);
  border-color: rgba(255, 255, 255, .3);
}

.c-btn--cta {
  background: rgba(255, 255, 255, .08);
  color: #fff;
  border-color: rgba(255, 255, 255, .15);
}

.c-btn--cta:hover {
  background: rgba(255, 255, 255, .14);
  border-color: rgba(255, 255, 255, .25);
}


/* ─────────────────────────────────────────────
   SECTION HEADINGS (shared)
   ───────────────────────────────────────────── */
.c-section-kicker {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 12px;
}

.c-section-kicker--accent {
  color: var(--c-green);
}

.c-section-title {
  font-size: clamp(34px, 5.5vw, 60px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.c-section-desc {
  margin-top: 14px;
  font-size: clamp(16px, 1.4vw, 19px);
  color: var(--c-text-2);
  line-height: 1.6;
}


/* ─────────────────────────────────────────────
   FEATURES SECTION — Chrome "What's New" Style
   ───────────────────────────────────────────── */
.c-features {
  padding: clamp(80px, 10vw, 140px) 0;
  background: #ffffff;
  color: #1f1f1f;
}

.c-features__header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto clamp(80px, 10vw, 120px);
  padding: 0 var(--gutter);
}

.c-features__main-title {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.04em;
  color: #1f1f1f;
  word-break: keep-all;
}

/* Feature Row */
.c-feat-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(40px, 6vw, 100px);
  max-width: calc(var(--content-wide) - 100px);
  margin: 0 auto clamp(80px, 10vw, 140px);
  padding: 0 var(--gutter);
}

.c-feat-row--reverse .c-feat-row__text {
  order: 2;
}

.c-feat-row--reverse .c-feat-row__media {
  order: 1;
}

@media (max-width: 900px) {
  .c-feat-row {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .c-feat-row--reverse .c-feat-row__text,
  .c-feat-row--reverse .c-feat-row__media {
    order: initial;
  }
}

.c-feat-row__text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 20px 0;
}

.c-feat-title {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.03em;
  color: #1f1f1f;
  margin-bottom: 24px;
}

.c-feat-desc {
  font-size: clamp(16px, 1.8vw, 18px);
  line-height: 1.6;
  color: #444746;
}

.c-feat-row__media {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 36px;
  overflow: hidden;
}

.c-feat-row__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.c-feat-row:hover .c-feat-row__media img {
  transform: scale(1.02);
}

/* Explore Grid */
.c-features__explore {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: clamp(60px, 8vw, 100px) var(--gutter) 40px;
}

.c-features__explore-title {
  text-align: center;
  font-size: clamp(32px, 4vw, 42px);
  font-weight: 700;
  color: #1f1f1f;
  margin-bottom: clamp(40px, 6vw, 60px);
}

.c-feat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.c-feat-card {
  position: relative;
  background-color: #f1f3f4;
  border-radius: 32px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s ease;
}

.c-feat-card:hover {
  background-color: #e8eaed;
}

.c-feat-card__media {
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 24px;
  background-color: #ffffff;
}

.c-feat-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.c-feat-card__text {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.c-feat-card__title {
  font-size: 20px;
  font-weight: 700;
  color: #1f1f1f;
  margin-bottom: 12px;
}

.c-feat-card__desc {
  font-size: 15px;
  line-height: 1.6;
  color: #444746;
  margin-bottom: 0;
}


/* ─────────────────────────────────────────────
   PIPELINE SECTION — Modular card layout
   ───────────────────────────────────────────── */
.c-pipeline {
  padding: clamp(80px, 8.6vw, 128px) 0;
  background: var(--c-bg-dark);
  color: #fff;
  position: relative;
  overflow: hidden;
}

/* subtle top glow */
.c-pipeline::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg,
      transparent 0%,
      rgba(48, 209, 88, .4) 30%,
      rgba(0, 113, 227, .4) 70%,
      transparent 100%);
}

.c-pipeline__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.c-pipeline__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.c-pipeline__header .c-section-title {
  color: #fff;
}

.c-pipeline__header .c-section-desc {
  color: rgba(255, 255, 255, .5);
}

/* track tabs */
.c-pipeline__tracks {
  margin-top: 40px;
  display: flex;
  justify-content: center;
  gap: 4px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--c-dark-border);
  border-radius: var(--r-pill);
  padding: 4px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  overflow: hidden;
  --track-indicator-x: 0px;
  --track-indicator-w: 0px;
}

.c-pipeline__tracks::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 4px;
  height: calc(100% - 8px);
  width: var(--track-indicator-w);
  background: #fff;
  border-radius: var(--r-pill);
  transform: translateX(var(--track-indicator-x));
  transition: transform .28s var(--ease-out), width .28s var(--ease-out);
  z-index: 0;
}

.c-pipeline__track-btn {
  appearance: none;
  border: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, .5);
  background: transparent;
  cursor: pointer;
  transition: color var(--dur) var(--ease);
  position: relative;
  z-index: 1;
}

.c-pipeline__track-btn:hover {
  color: rgba(255, 255, 255, .75);
}

.c-pipeline__track-btn.is-active {
  background: transparent;
  color: var(--c-text);
}

.c-pipeline__track-btn.is-active svg {
  color: var(--c-text);
}

/* ── Card Grid ── */
.c-pipeline__cards {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

/* single step card */
.c-step-card {
  position: relative;
  padding: 32px 28px 28px;
  border: 1px solid var(--c-dark-border);
  border-radius: var(--r-lg);
  background: var(--c-dark-card);
  transition: background .35s var(--ease), border-color .35s var(--ease), transform .35s var(--ease);
  display: flex;
  flex-direction: column;
  cursor: default;
}

.c-step-card:hover {
  background: var(--c-dark-card-hover);
  border-color: rgba(255, 255, 255, .12);
  transform: translateY(-2px);
}

.c-step-card.is-active {
  border-color: var(--c-accent);
  background: rgba(0, 113, 227, .08);
}

/* kicker */
.c-step-card__kicker {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--c-green);
  margin-bottom: 6px;
}

.c-step-card__title {
  font-size: clamp(17px, 1.6vw, 20px);
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
}

.c-step-card__desc {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255, 255, 255, .45);
  flex: 1;
}

.c-step-card__actions {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.c-step-card__actions .c-btn {
  font-size: 13px;
  padding: 9px 18px;
}

/* connector line between cards */
.c-step-card::after {
  content: '';
  position: absolute;
  top: 50px;
  right: -16px;
  width: 16px;
  height: 1px;
  background: rgba(255, 255, 255, .08);
}

.c-step-card:last-child::after {
  display: none;
}

/* server bar */
.c-pipeline__server-bar {
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 24px;
  border: 1px solid var(--c-dark-border);
  border-radius: var(--r-pill);
  background: var(--c-dark-card);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.c-pipeline__server-label {
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, .35);
}

.c-pipeline__server-addr {
  font-family: 'Instrument Sans', 'Inter', sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: rgba(255, 255, 255, .85);
  letter-spacing: .01em;
}

.c-pipeline__server-copy-btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, .15);
  background: rgba(255, 255, 255, .06);
  color: rgba(255, 255, 255, .7);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: all var(--dur) var(--ease);
}

.c-pipeline__server-copy-btn:hover {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .25);
  color: #fff;
}

.c-pipeline__scroll-trigger {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  display: flex;
  justify-content: center;
  z-index: 2;
}

.c-pipeline__scroll-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, .74);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 0;
  cursor: pointer;
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.c-pipeline__scroll-btn:hover {
  color: #fff;
  transform: translateY(1px);
}

.c-pipeline__scroll-label {
  font-family: var(--ff-kr);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .01em;
}

.c-pipeline__scroll-chevron {
  display: block;
  width: 34px;
  height: 34px;
  animation: c-chevron-float 1.9s cubic-bezier(.33, 0, .2, 1) infinite;
}

@keyframes c-chevron-float {
  0%,
  100% {
    transform: translateY(0);
  }

  45% {
    transform: translateY(7px);
  }

  70% {
    transform: translateY(2px);
  }
}


/* ─────────────────────────────────────────────
   CTA SECTION
   ───────────────────────────────────────────── */
.c-cta {
  padding: var(--section-v) 0;
  background: var(--c-bg-dark);
  text-align: center;
  position: relative;
}

.c-cta::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg,
      transparent 10%,
      rgba(255, 255, 255, .06) 50%,
      transparent 90%);
}

.c-cta__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.c-cta__title {
  font-size: clamp(30px, 5vw, 52px);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: #fff;
}

.c-cta__desc {
  margin-top: 14px;
  font-size: clamp(15px, 1.3vw, 18px);
  color: rgba(255, 255, 255, .45);
}

.c-cta__links {
  margin-top: 36px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}


/* ─────────────────────────────────────────────
   FOOTER
   ───────────────────────────────────────────── */
.c-footer {
  background: var(--c-bg-dark);
  border-top: 1px solid rgba(255, 255, 255, .06);
  padding: 32px 0;
}

.c-footer__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.c-footer__brand {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: rgba(255, 255, 255, .4);
  letter-spacing: -0.01em;
}

.c-footer__copy {
  font-size: 12px;
  color: rgba(255, 255, 255, .25);
}


/* ─────────────────────────────────────────────
   REVEAL ANIMATIONS
   ───────────────────────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .9s var(--ease-out), transform .9s var(--ease-out);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* feature block slide up */
.c-feature-block[data-reveal] {
  transform: translateY(40px);
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}

/* tile grid children stagger */
.c-tile-grid[data-reveal] .c-tile {
  opacity: 0;
  transform: translateY(30px) scale(.97);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}

.c-tile-grid[data-reveal] .c-tile:nth-child(1) {
  transition-delay: .05s;
}

.c-tile-grid[data-reveal] .c-tile:nth-child(2) {
  transition-delay: .15s;
}

.c-tile-grid[data-reveal] .c-tile:nth-child(3) {
  transition-delay: .25s;
}

.c-tile-grid[data-reveal] .c-tile:nth-child(4) {
  transition-delay: .35s;
}

.c-tile-grid[data-reveal].is-visible .c-tile {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* feature row stagger */
.c-feature-row[data-reveal] .c-feature-row__text {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s .1s var(--ease-out), transform .8s .1s var(--ease-out);
}

.c-feature-row[data-reveal] .c-feature-row__media {
  opacity: 0;
  transform: translateX(40px) scale(.97);
  transition: opacity .9s .15s var(--ease-out), transform .9s .15s var(--ease-out);
}

.c-feature-row[data-reveal].is-visible .c-feature-row__text,
.c-feature-row[data-reveal].is-visible .c-feature-row__media {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

/* pipeline cards stagger */
.c-pipeline__cards[data-reveal] .c-step-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-out);
}

.c-pipeline__cards[data-reveal].is-visible .c-step-card:nth-child(1) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: .05s;
}

.c-pipeline__cards[data-reveal].is-visible .c-step-card:nth-child(2) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: .12s;
}

.c-pipeline__cards[data-reveal].is-visible .c-step-card:nth-child(3) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: .19s;
}

.c-pipeline__cards[data-reveal].is-visible .c-step-card:nth-child(4) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: .26s;
}


/* ─────────────────────────────────────────────
   RESPONSIVE — Tablet
   ───────────────────────────────────────────── */
@media (max-width: 960px) {
  .c-feature-block {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .c-feature-block__copy {
    padding: 0;
  }

  .c-feature-block__media {
    min-height: 0;
  }

  .c-tile-grid {
    grid-template-columns: 1fr 1fr;
  }

  .c-tile--wide {
    grid-column: span 2;
    grid-row: auto;
  }

  .c-tile--wide img {
    aspect-ratio: 16 / 9;
    min-height: auto;
  }

  .c-feature-row {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: clamp(48px, 6vw, 80px) var(--gutter);
  }

  .c-feature-row__media img {
    min-height: 240px;
  }

  .c-feature-row__desc {
    max-width: none;
  }

  .c-pipeline__cards {
    grid-template-columns: 1fr 1fr;
  }

  .c-step-card::after {
    display: none;
  }
}


/* ─────────────────────────────────────────────
   RESPONSIVE — Mobile
   ───────────────────────────────────────────── */
@media (max-width: 640px) {
  .c-nav__links {
    display: none;
  }

  .c-nav__actions {
    margin-left: auto;
  }

  .c-hero {
    min-height: 100vh;
    min-height: 100svh;
    min-height: max(640px, 100svh);
    padding: 100px var(--gutter) 56px;
  }

  .c-hero__inner {
    padding-bottom: 88px;
  }

  .c-hero__title {
    font-size: clamp(34px, 10vw, 48px);
  }

  .c-hero__server {
    grid-template-columns: 1fr;
    gap: 6px;
    border-radius: var(--r-md);
    padding: 7px;
  }

  .c-hero__server-address {
    width: 100%;
    justify-content: center;
    padding: 12px 14px;
  }

  .c-hero__server-copy {
    width: 100%;
    justify-content: center;
    min-height: 46px;
    padding: 10px 14px;
  }

  .c-hero__cta {
    flex-direction: column;
    align-items: stretch;
  }

  .c-feature-block {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .c-feature-block__copy {
    padding: 0;
  }

  .c-feature-block__media {
    border-radius: var(--r-lg);
    min-height: 0;
  }

  .c-tile-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .c-tile--wide {
    grid-column: span 1;
  }

  .c-tile img {
    border-radius: var(--r-md);
  }

  .c-tile__content {
    margin-top: 10px;
    padding: 0;
  }

  .c-tile--wide img,
  .c-tile--tall img,
  .c-tile:not(.c-tile--wide):not(.c-tile--tall) img {
    aspect-ratio: 4 / 3;
  }

  .c-feature-row__media {
    border-radius: var(--r-lg);
  }

  .c-feature-row__media img {
    border-radius: var(--r-lg);
  }

  .c-pipeline__cards {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .c-step-card::after {
    display: none;
  }

  .c-pipeline__server-bar {
    flex-direction: column;
    gap: 8px;
    padding: 16px 20px;
    border-radius: var(--r-md);
  }

  .c-footer__inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .c-pipeline__tracks::before {
    transition: none;
  }

  .c-pipeline__scroll-chevron {
    animation: none;
  }
}