/* ALLOY site — SI multipage, Nanum Gothic, mid-dark */
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");
@import url("https://fonts.googleapis.com/css2?family=Nanum+Gothic:wght@400;700;800&display=swap");

:root {
  --bg: #0f1218;
  --bg-elev: #171b24;
  --bg-soft: #1e2430;
  --ink: #eef1f6;
  --muted: #9aa3b2;
  --line: rgba(238, 241, 246, 0.1);
  --accent: #c45a32;
  --accent-2: #e8a15a;
  --font: "Nanum Gothic", "Pretendard", sans-serif;
  --wrap: min(1100px, calc(100% - 2.4rem));
  --header-h: 4rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-weight: 400;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--accent-2);
}

em {
  font-style: normal;
  color: var(--accent-2);
}

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

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

.skip {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 100;
  padding: 0.5rem 1rem;
  background: var(--ink);
  color: var(--bg);
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(15, 18, 24, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  font-size: 0.9rem;
}

.brand img {
  width: 1.85rem;
  height: 1.85rem;
  object-fit: cover;
  border-radius: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.2rem 0.9rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.site-nav > a.is-active,
.nav-sub a.is-active {
  color: var(--ink);
}

.nav-item {
  position: relative;
}

.nav-parent {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  letter-spacing: inherit;
  cursor: pointer;
  padding: 0.5rem 0;
}

.nav-parent:hover,
.site-nav > a:hover {
  color: var(--ink);
}

.nav-sub {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 10.5rem;
  padding: 0.4rem 0;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
  z-index: 60;
}

.nav-item:hover .nav-sub,
.nav-item:focus-within .nav-sub {
  display: block;
}

.nav-sub a {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--muted);
  white-space: nowrap;
}

.nav-sub a:hover {
  color: var(--ink);
  background: rgba(238, 241, 246, 0.04);
}

.site-nav__cta {
  color: var(--ink) !important;
  border: 1px solid var(--line);
  padding: 0.35rem 0.85rem !important;
  border-radius: 2px;
}

.site-nav__cta:hover {
  border-color: var(--accent);
  color: var(--accent-2) !important;
}

.nav-toggle {
  display: none;
  width: 2.4rem;
  height: 2.4rem;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  border-radius: 2px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav-toggle__bar,
.nav-toggle__bar::before,
.nav-toggle__bar::after {
  display: block;
  width: 1rem;
  height: 1.5px;
  background: var(--ink);
  position: relative;
}

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

.nav-toggle__bar::before {
  top: -5px;
}

.nav-toggle__bar::after {
  top: 5px;
}

/* Hero */
.hero {
  position: relative;
  min-height: min(78vh, 720px);
  display: grid;
  align-items: end;
  isolation: isolate;
  overflow: hidden;
  background: #0a0c10;
}

.hero__cosmos {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-size: cover;
  background-position: center 40%;
  opacity: 0.42;
  filter: saturate(0.85);
}

.hero__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    180deg,
    rgba(15, 18, 24, 0.4) 0%,
    rgba(15, 18, 24, 0.55) 45%,
    rgba(15, 18, 24, 0.95) 100%
  );
}

.hero__inner {
  padding: 0 0 clamp(3rem, 9vh, 5rem);
  max-width: 40rem;
}

.hero__slogan {
  margin: 0 0 0.85rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--accent-2);
  text-transform: uppercase;
}

.hero__title {
  margin: 0 0 0.85rem;
  font-weight: 800;
  font-size: clamp(1.65rem, 4.2vw, 2.45rem);
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.hero__lead {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 0.98rem;
}

.hero__actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.55rem;
  padding: 0.5rem 1.2rem;
  font-family: var(--font);
  font-size: 0.88rem;
  font-weight: 700;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease;
}

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

.btn--primary:hover {
  background: #d4683c;
  color: #fff;
}

.btn--ghost {
  border-color: var(--line);
  color: var(--ink);
  background: rgba(30, 36, 48, 0.55);
}

.btn--ghost:hover {
  border-color: var(--accent-2);
  color: var(--accent-2);
}

/* Page */
.page-hero {
  padding: clamp(2.5rem, 7vh, 3.75rem) 0 1.75rem;
  border-bottom: 1px solid var(--line);
  background: var(--bg-elev);
}

.crumb {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.crumb a:hover {
  color: var(--accent-2);
}

.page-hero .eyebrow {
  margin: 0 0 0.4rem;
}

.page-hero h1 {
  margin: 0 0 0.55rem;
  font-weight: 800;
  font-size: clamp(1.55rem, 3.2vw, 2.1rem);
}

.page-hero p {
  margin: 0;
  color: var(--muted);
  max-width: 40rem;
}

.section {
  padding: clamp(2.75rem, 7vh, 4.25rem) 0;
}

.section--alt {
  background: var(--bg-elev);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 0.55rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.section > .wrap > h2,
.block-title {
  margin: 0 0 1.1rem;
  font-weight: 800;
  font-size: clamp(1.25rem, 2.4vw, 1.55rem);
}

.prose {
  max-width: 42rem;
  color: var(--muted);
}

.prose p {
  margin: 0 0 1rem;
}

.prose strong {
  color: var(--ink);
  font-weight: 700;
}

.prose h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--ink);
}

.prose h2:first-child {
  margin-top: 0;
}

.prose ul {
  margin: 0 0 1.15rem;
  padding-left: 1.15rem;
}

.prose li {
  margin-bottom: 0.35rem;
}

.lead {
  font-size: 1.05rem;
  color: var(--ink);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.5rem;
}

/* SI service cards */
.svc-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 800px) {
  .svc-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.svc-card {
  display: block;
  padding: 1.4rem 1.25rem;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 2px;
  height: 100%;
  transition: border-color 0.15s ease;
}

.svc-card:hover {
  border-color: rgba(196, 90, 50, 0.55);
  color: inherit;
}

.svc-card .num {
  display: block;
  margin-bottom: 0.65rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent-2);
}

.svc-card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
  font-weight: 800;
}

.svc-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.svc-list {
  display: grid;
  gap: 0.75rem;
  margin: 1.25rem 0 0;
}

.svc-list article {
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--line);
  background: var(--bg);
  border-radius: 2px;
}

.svc-list h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 800;
  color: var(--ink);
}

.svc-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.tags {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.tags li {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  padding: 0.28rem 0.65rem;
  border-radius: 2px;
}

.steps {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  max-width: 36rem;
  counter-reset: step;
}

.steps li {
  position: relative;
  display: grid;
  grid-template-columns: 2.25rem 1fr;
  gap: 0.85rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  counter-increment: step;
}

.steps li::before {
  content: counter(step, decimal-leading-zero);
  font-weight: 800;
  color: var(--accent-2);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  padding-top: 0.15rem;
}

.steps strong {
  display: block;
  color: var(--ink);
  margin-bottom: 0.2rem;
}

.fact-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
  margin: 1.25rem 0 0;
}

.fact-grid div {
  padding: 1rem 1.15rem;
  background: var(--bg);
}

.fact-grid dt {
  margin: 0 0 0.25rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.fact-grid dd {
  margin: 0;
  color: var(--ink);
  font-size: 0.95rem;
}

@media (min-width: 720px) {
  .fact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Forms */
.form {
  max-width: 32rem;
  display: grid;
  gap: 0.85rem;
}

.form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink);
}

.form input,
.form textarea,
.form select {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--bg-elev);
  color: var(--ink);
  font: inherit;
  font-weight: 400;
}

.form textarea {
  min-height: 9rem;
  resize: vertical;
}

.form input:focus,
.form textarea:focus {
  outline: 1px solid var(--accent);
  border-color: var(--accent);
}

.form-note {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 400;
}

.ci-mark {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.ci-mark img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--line);
}

.site-footer {
  padding: 1.5rem 0 2.4rem;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
  color: var(--muted);
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer strong {
  display: block;
  color: var(--ink);
  margin-bottom: 0.2rem;
  font-weight: 800;
}

@media (max-width: 960px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.35rem 1.15rem 1.35rem;
    background: rgba(15, 18, 24, 0.98);
    border-bottom: 1px solid var(--line);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition:
      transform 0.25s ease,
      opacity 0.25s ease;
  }

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

  .site-nav > a,
  .nav-parent {
    display: block;
    width: 100%;
    text-align: left;
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-item:hover .nav-sub,
  .nav-item:focus-within .nav-sub {
    display: none;
  }

  .nav-item.is-open .nav-sub {
    display: block;
  }

  .nav-sub {
    position: static;
    transform: none;
    border: none;
    box-shadow: none;
    background: transparent;
    padding: 0 0 0.5rem 0.7rem;
  }

  .site-nav__cta {
    margin-top: 0.85rem;
    text-align: center;
  }

  .hero {
    min-height: 70vh;
    align-items: center;
  }

  .hero__inner {
    padding-top: 5rem;
  }
}