/* =========================================================
   MIRACLES — Global Styles
   BI 기반: 딥 네이비 (#1a2d44) + 크림 아이보리 (#f3eed5)
   ========================================================= */

:root {
  /* Brand Colors — Miracles BI */
  --color-primary: #1a2d44;          /* deep navy (BI main) */
  --color-primary-deep: #122036;     /* darker navy */
  --color-primary-soft: #2a4163;     /* lighter navy */
  --color-cream: #f3eed5;            /* ivory cream (BI accent) */
  --color-cream-soft: #faf6e6;
  --color-cream-deep: #e6dfc1;

  /* Neutrals */
  --color-bg: #ffffff;
  --color-bg-soft: #faf6e6;          /* cream-tinted bg */
  --color-bg-dark: #1a2d44;
  --color-text: #131a26;
  --color-text-muted: #5e6675;
  --color-line: #e6dfc1;
  --color-line-soft: #efe8d0;

  /* Spacing */
  --container: 1240px;
  --section-pad: clamp(80px, 10vw, 140px);

  /* Typography */
  --font-kr: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-display: 'Pretendard', 'Inter', sans-serif;
}

@font-face {
  font-family: 'Pretendard';
  font-weight: 100 900;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/PretendardVariable.woff2') format('woff2-variations');
}

/* ========== Reset ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-kr);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

/* ========== Layout ========== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
section { padding: var(--section-pad) 0; }

/* ========== Typography ========== */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-primary);
}
h1 { font-size: clamp(40px, 6vw, 72px); }
h2 { font-size: clamp(32px, 4vw, 52px); }
h3 { font-size: clamp(22px, 2.4vw, 32px); }
h4 { font-size: clamp(18px, 1.6vw, 22px); }
.eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-primary-soft);
  margin-bottom: 18px;
  display: inline-block;
}
.lead { font-size: clamp(17px, 1.4vw, 20px); color: var(--color-text-muted); max-width: 680px; line-height: 1.7; }

/* ========== Logo (SVG inline) ========== */
.logo-mark {
  width: 32px;
  height: 32px;
  display: inline-block;
  vertical-align: middle;
}
.logo-wrap {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.18em;
  color: var(--color-primary);
}
.logo-wrap span { letter-spacing: 0.22em; }

/* ========== Header ========== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background .25s ease;
}
.header.scrolled {
  border-bottom-color: var(--color-line);
  background: rgba(255, 255, 255, 0.95);
}
.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.nav { display: flex; gap: 36px; align-items: center; }
.nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  position: relative;
  transition: color .2s;
  letter-spacing: 0.02em;
}
.nav a:hover, .nav a.active { color: var(--color-primary); }
.nav a.active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -8px;
  height: 2px;
  background: var(--color-primary);
}

.lang-toggle {
  display: flex;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  overflow: hidden;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.lang-toggle button {
  padding: 7px 13px;
  color: var(--color-text-muted);
  transition: all .2s;
}
.lang-toggle button.active {
  background: var(--color-primary);
  color: var(--color-cream);
}

.menu-btn { display: none; }

/* ========== Hero ========== */
.hero {
  min-height: 100vh;
  padding: 160px 0 80px;
  display: flex;
  align-items: center;
  background: var(--color-bg-soft);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at top right, rgba(26,45,68,0.06), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(26,45,68,0.04), transparent 60%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; }
.hero-eyebrow {
  font-size: 13px;
  letter-spacing: 0.24em;
  font-weight: 700;
  color: var(--color-primary-soft);
  text-transform: uppercase;
  margin-bottom: 32px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.hero-eyebrow::before {
  content: '';
  width: 28px; height: 1px;
  background: var(--color-primary-soft);
  display: inline-block;
}
.hero h1 {
  font-size: clamp(44px, 7.5vw, 104px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.04em;
  color: var(--color-primary);
  margin-bottom: 36px;
}
.hero h1 em {
  font-style: italic;
  font-weight: 500;
  color: var(--color-primary-soft);
}
.hero-sub {
  font-size: clamp(17px, 1.5vw, 22px);
  color: var(--color-text-muted);
  max-width: 720px;
  margin-bottom: 48px;
  line-height: 1.7;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.04em;
  transition: all .25s;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-cream);
}
.btn-primary:hover { background: var(--color-primary-deep); transform: translateY(-2px); }
.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}
.btn-ghost:hover { background: var(--color-primary); color: var(--color-cream); }
.btn-arrow::after { content: '→'; transition: transform .25s; font-weight: 400; }
.btn-arrow:hover::after { transform: translateX(4px); }

/* hero pattern decoration (BI 패턴 모티브) */
.hero-pattern {
  position: absolute;
  right: -160px;
  top: 50%;
  transform: translateY(-50%);
  width: 720px;
  height: 720px;
  opacity: 0.7;
  pointer-events: none;
}
@media (max-width: 1100px) { .hero-pattern { right: -300px; opacity: 0.4; } }
@media (max-width: 720px) { .hero-pattern { display: none; } }

/* ========== Section helpers ========== */
.section-head { margin-bottom: 60px; max-width: 760px; }
.section-head h2 { margin-bottom: 20px; }

.bg-soft { background: var(--color-bg-soft); }
.bg-dark {
  background: var(--color-primary);
  color: var(--color-cream);
}
.bg-dark h2, .bg-dark h3, .bg-dark h4 { color: var(--color-cream); }
.bg-dark .lead, .bg-dark .section-head p { color: rgba(243, 238, 213, 0.75); }
.bg-dark .eyebrow { color: var(--color-cream); opacity: 0.7; }

/* ========== Mission strip ========== */
.mission-strip {
  padding: 100px 0;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: #fff;
}
.mission-strip blockquote {
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  max-width: 1000px;
  position: relative;
  padding-left: 36px;
}
.mission-strip blockquote::before {
  content: '';
  position: absolute;
  left: 0; top: 14px;
  width: 4px; height: 60%;
  background: var(--color-primary);
}
.mission-strip cite {
  display: block;
  margin-top: 28px;
  padding-left: 36px;
  font-style: normal;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 700;
}

/* ========== Brand grid ========== */
.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 60px;
}
.brand-card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 20px;
  padding: 44px 36px;
  transition: all .35s;
  display: block;
  position: relative;
  overflow: hidden;
}
.brand-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-primary);
  box-shadow: 0 30px 60px -20px rgba(26, 45, 68, 0.18);
}
.brand-card .brand-tag {
  font-size: 11px;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: var(--color-primary-soft);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.brand-card h3 {
  font-size: 28px;
  margin-bottom: 14px;
  color: var(--color-primary);
}
.brand-card p {
  font-size: 15px;
  color: var(--color-text-muted);
  margin-bottom: 28px;
  min-height: 60px;
  line-height: 1.65;
}
.brand-card .arrow {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.06em;
}
.brand-card .arrow::after {
  content: '→';
  margin-left: 8px;
  transition: transform .3s;
  font-weight: 400;
}
.brand-card:hover .arrow::after { transform: translateX(8px); }

.brand-card.placeholder {
  background: var(--color-bg-soft);
  border-style: dashed;
  border-color: var(--color-cream-deep);
}
.brand-card.placeholder h3 { color: var(--color-text-muted); }
.brand-card.placeholder:hover { transform: none; box-shadow: none; }

/* ========== R&D feature ========== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 56px;
}
.feature-card {
  padding: 40px 32px;
  border-radius: 16px;
  background: rgba(243, 238, 213, 0.06);
  border: 1px solid rgba(243, 238, 213, 0.14);
}
.bg-dark .feature-card { color: rgba(243, 238, 213, 0.85); }
.feature-card .num {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--color-cream);
  opacity: 0.7;
  font-weight: 700;
  margin-bottom: 28px;
}
.feature-card h4 { margin-bottom: 14px; color: var(--color-cream); }
.feature-card p { font-size: 15px; line-height: 1.7; }

.feature-grid.light .feature-card {
  background: #fff;
  border: 1px solid var(--color-line);
  color: var(--color-text);
}
.feature-grid.light .feature-card h4 { color: var(--color-primary); }
.feature-grid.light .feature-card p { color: var(--color-text-muted); }
.feature-grid.light .feature-card .num { color: var(--color-primary-soft); opacity: 1; }

/* ========== Stats ========== */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
  border-radius: 20px;
  overflow: hidden;
}
.stat {
  background: #fff;
  padding: 44px 32px;
  text-align: left;
}
.stat .num {
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-primary);
  margin-bottom: 8px;
  display: block;
  line-height: 1;
}
.stat .num em { font-style: normal; color: var(--color-primary-soft); font-size: 0.5em; vertical-align: top; margin-left: 4px; }
.stat .label { font-size: 13px; color: var(--color-text-muted); letter-spacing: 0.04em; }

/* ========== Process / Timeline ========== */
.process-list {
  margin-top: 60px;
  border-top: 1px solid var(--color-line);
}
.process-item {
  display: grid;
  grid-template-columns: 100px 1fr 1.6fr;
  gap: 40px;
  padding: 40px 0;
  border-bottom: 1px solid var(--color-line);
  align-items: start;
}
.process-item .step {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-primary-soft);
}
.process-item h4 {
  font-size: 22px;
  color: var(--color-primary);
}
.process-item p { color: var(--color-text-muted); font-size: 15px; line-height: 1.7; }
@media (max-width: 720px) {
  .process-item { grid-template-columns: 1fr; gap: 14px; padding: 28px 0; }
}

/* ========== Values ========== */
.values {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 60px;
}
.value {
  padding: 40px 32px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--color-line);
  transition: all .3s;
}
.value:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -20px rgba(26, 45, 68, 0.15);
}
.value .v-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary-soft);
  letter-spacing: 0.18em;
  margin-bottom: 18px;
  display: block;
}
.value h4 { margin-bottom: 6px; color: var(--color-primary); font-size: 22px; }
.value .v-en { font-size: 12px; color: var(--color-text-muted); margin-bottom: 18px; font-style: italic; letter-spacing: 0.04em; }
.value p { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; }

/* ========== Page header (sub pages) ========== */
.page-head {
  padding: 180px 0 100px;
  background: var(--color-bg-soft);
  border-bottom: 1px solid var(--color-line);
  position: relative;
  overflow: hidden;
}
.page-head .container { position: relative; z-index: 1; }
.page-head .eyebrow { color: var(--color-primary-soft); }
.page-head h1 {
  font-size: clamp(44px, 7vw, 92px);
  color: var(--color-primary);
  margin-bottom: 24px;
  letter-spacing: -0.035em;
}
.page-head .lead { font-size: clamp(17px, 1.5vw, 22px); }

/* ========== Two-col / split ========== */
.split {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}
.split-narrow { grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
@media (max-width: 900px) {
  .split, .split-narrow { grid-template-columns: 1fr; gap: 40px; }
}

/* ========== Office cards ========== */
.office-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 40px;
}
.office {
  padding: 36px 32px;
  border: 1px solid var(--color-line);
  border-radius: 16px;
  background: #fff;
  transition: all .3s;
}
.office:hover { border-color: var(--color-primary); }
.office .badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: 18px;
  display: inline-block;
  padding: 5px 12px;
  border: 1px solid var(--color-primary);
  border-radius: 999px;
}
.office h4 { color: var(--color-primary); margin-bottom: 10px; font-size: 18px; }
.office p { color: var(--color-text-muted); font-size: 14px; line-height: 1.65; }

/* ========== Recruit teams ========== */
.team-list { margin-top: 40px; border-top: 1px solid var(--color-line); }
.team {
  padding: 40px 0;
  border-bottom: 1px solid var(--color-line);
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  align-items: start;
}
.team .t-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-primary);
  padding: 7px 16px;
  border: 1px solid var(--color-primary);
  border-radius: 999px;
  display: inline-block;
}
.team h3 { color: var(--color-primary); margin-bottom: 12px; font-size: 24px; }
.team p { color: var(--color-text-muted); line-height: 1.7; }
.team ul { margin-top: 18px; }
.team ul li {
  padding: 6px 0;
  color: var(--color-text-muted);
  font-size: 14px;
  display: flex;
  gap: 12px;
}
.team ul li::before {
  content: '·';
  color: var(--color-primary-soft);
  font-weight: 700;
}
@media (max-width: 720px) {
  .team { grid-template-columns: 1fr; gap: 16px; }
}

/* ========== Contact form ========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: start;
}
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; gap: 40px; } }
.contact-info h3 { color: var(--color-primary); margin-bottom: 24px; }
.contact-info dl { display: grid; grid-template-columns: 110px 1fr; gap: 14px 20px; margin-bottom: 32px; }
.contact-info dt { font-weight: 700; color: var(--color-primary); font-size: 14px; }
.contact-info dd { color: var(--color-text-muted); font-size: 14px; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 12px; font-weight: 700; margin-bottom: 8px; color: var(--color-primary); letter-spacing: 0.08em; text-transform: uppercase; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  background: #fff;
  transition: border-color .2s;
  color: var(--color-text);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
}
.form-group textarea { resize: vertical; min-height: 140px; }

/* ========== Brand detail ========== */
.brand-hero {
  padding: 200px 0 120px;
  background: var(--color-primary);
  color: var(--color-cream);
  position: relative;
  overflow: hidden;
}
.brand-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top right, rgba(243,238,213,0.08), transparent 60%);
  pointer-events: none;
}
.brand-hero .container { position: relative; z-index: 1; }
.brand-hero .eyebrow { color: var(--color-cream); opacity: 0.7; }
.brand-hero h1 { color: var(--color-cream); }
.brand-hero .lead { color: rgba(243,238,213,0.8); }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 48px;
}
.product {
  padding: 36px 28px;
  border: 1px solid var(--color-line);
  border-radius: 16px;
  background: #fff;
  text-align: center;
  transition: all .3s;
}
.product:hover { border-color: var(--color-primary); transform: translateY(-4px); }
.product .icon {
  width: 56px; height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--color-bg-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  color: var(--color-primary);
}
.product h4 { color: var(--color-primary); margin-bottom: 8px; }
.product p { font-size: 14px; color: var(--color-text-muted); }

/* ========== Footer ========== */
.footer {
  background: var(--color-primary-deep);
  color: rgba(243, 238, 213, 0.7);
  padding: 100px 0 40px;
  font-size: 14px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(243, 238, 213, 0.1);
}
@media (max-width: 900px) { .footer-top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .footer-top { grid-template-columns: 1fr; gap: 32px; } }

.footer h5 {
  color: var(--color-cream);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.footer ul li { margin-bottom: 12px; }
.footer a:hover { color: var(--color-cream); }
.footer .logo-wrap { color: var(--color-cream); margin-bottom: 18px; }
.footer .logo-wrap span { color: var(--color-cream); }
.footer .footer-tag { font-size: 14px; line-height: 1.7; color: rgba(243, 238, 213, 0.55); max-width: 320px; }

.footer-bot {
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 12px;
  color: rgba(243, 238, 213, 0.45);
  letter-spacing: 0.04em;
}

/* ========== Responsive nav ========== */
@media (max-width: 900px) {
  .nav { display: none; }
  .menu-btn {
    display: inline-flex;
    width: 44px; height: 44px;
    border: 1px solid var(--color-line);
    border-radius: 999px;
    align-items: center; justify-content: center;
    color: var(--color-primary);
  }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: #fff;
    padding: 24px;
    border-bottom: 1px solid var(--color-line);
    gap: 18px;
    align-items: flex-start;
  }
}

/* ========== utils ==========
   언어 표시는 JS가 textContent로 swap하므로 별도 display 규칙 불필요 */

/* Animation */
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }