/* ═══════════════════════════════════════
   MIT Marine Info Tech — style.css
   Google Fonts loaded in each HTML head
═══════════════════════════════════════ */

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

/* ── TOKENS ── */
:root {
  --bg:      #f0f5f9;
  --bg2:     #e2ecf4;
  --bg3:     #d0dfe9;
  --white:   #ffffff;
  --navy:    #0d2b45;
  --navy2:   #1a3f60;
  --navy3:   #235070;
  --blue:    #1a7abf;
  --blue2:   #2290d9;
  --teal:    #0ea5c4;
  --teal-l:  rgba(14,165,196,.18);
  --teal-ll: rgba(14,165,196,.07);
  --gold:    #b8860b;
  --gold-l:  rgba(184,134,11,.13);
  --tx1:     #0d1f2d;
  --tx2:     #1e3a50;
  --tx3:     #3a5a72;
  --tx4:     #6b8fa8;
  --txw:     #ffffff;
  --shadow:  0 2px 16px rgba(13,43,69,.10);
  --shadow2: 0 4px 28px rgba(13,43,69,.14);
  --radius:  4px;
  --fd: 'Barlow Condensed', sans-serif;
  --fb: 'Noto Sans KR', sans-serif;
  --fm: 'DM Mono', monospace;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--fb);
  background: var(--bg);
  color: var(--tx1);
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
  min-height: 100vh;
}

/* ═══════════════════
   NAV
═══════════════════ */
nav {
  position: sticky; top: 0; z-index: 200;
  height: 68px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 52px;
  background: var(--navy);
  box-shadow: 0 2px 12px rgba(0,0,0,.25);
}
.nav-logo {
  display: flex; align-items: center;
  cursor: pointer; text-decoration: none;
}
.logo-emblem {
  height: 55px;
  background: rgba(255, 255, 255, 0.92); /* 흰 배경 */
  border-radius: 6px;
  padding: 4px;
  display: flex; align-items: center; justify-content: center;
}
.logo-emblem img {
  width: 100%; height: 100%;
  object-fit: contain;
}




.nav-menu { display: flex; gap: 2px; list-style: none; align-items: center; }
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 5px;
  font-family: var(--fb); font-size: 14px; font-weight: 500;
  letter-spacing: .02em; color: rgba(255,255,255,.8);
  cursor: pointer; padding: 8px 14px; border-radius: var(--radius);
  transition: color .2s, background .2s;
  white-space: nowrap; border: none; background: none;
  text-decoration: none;
}
.nav-link:hover, .nav-link.active {
  color: #fff; background: rgba(255,255,255,.12);
}
.nav-link svg { width: 11px; height: 11px; transition: transform .25s; opacity: .7; }
.nav-item:hover .nav-link svg { transform: rotate(180deg); }

/* Dropdown */
.dropdown {
  position: absolute; top: calc(100% + 6px); left: 0;
  background: var(--white);
  border: 1px solid var(--bg3);
  border-radius: var(--radius);
  box-shadow: var(--shadow2);
  min-width: 220px;
  opacity: 0; visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .2s, transform .2s, visibility .2s;
  z-index: 300; overflow: hidden;
}
.nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dd-item {
  display: flex; align-items: center; gap: 14px;
  padding: 13px 18px; cursor: pointer;
  transition: background .15s; background: none;
  text-decoration: none;
}
.dd-item:hover { background: var(--teal-ll); }
.dd-item + .dd-item { border-top: 1px solid var(--bg2); }
.dd-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); flex-shrink: 0; }
.dd-name { font-size: 14px; font-weight: 700; color: var(--tx1); display: block; }
.dd-sub { font-size: 11px; color: var(--tx4); margin-top: 1px; font-family: var(--fm); }

.nav-cta {
  font-family: var(--fb); font-size: 14px; font-weight: 700;
  color: var(--navy); background: #fff;
  border: none; padding: 9px 20px; border-radius: var(--radius);
  cursor: pointer; transition: all .2s; white-space: nowrap;
}
.nav-cta:hover { background: var(--teal); color: #fff; }

/* ═══════════════════
   BUTTONS
═══════════════════ */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--navy); color: #fff;
  font-family: var(--fb); font-size: 15px; font-weight: 700;
  padding: 13px 30px; border: none; border-radius: var(--radius);
  cursor: pointer; transition: all .2s; text-decoration: none;
}
.btn-primary:hover { background: var(--navy2); transform: translateY(-1px); box-shadow: var(--shadow); }

.btn-blue {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--blue); color: #fff;
  font-family: var(--fb); font-size: 15px; font-weight: 700;
  padding: 13px 30px; border: none; border-radius: var(--radius);
  cursor: pointer; transition: all .2s; text-decoration: none;
}
.btn-blue:hover { background: var(--blue2); transform: translateY(-1px); }

.btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; color: var(--navy);
  font-family: var(--fb); font-size: 15px; font-weight: 700;
  padding: 12px 28px; border: 2px solid var(--navy);
  border-radius: var(--radius); cursor: pointer; transition: all .2s;
  text-decoration: none;
}
.btn-outline:hover { background: var(--navy); color: #fff; }

.btn-outline-w {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.1); color: #fff;
  font-family: var(--fb); font-size: 15px; font-weight: 700;
  padding: 12px 28px; border: 2px solid rgba(255,255,255,.4);
  border-radius: var(--radius); cursor: pointer; transition: all .2s;
  text-decoration: none;
}
.btn-outline-w:hover { background: rgba(255,255,255,.2); }

.btn-gold {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--gold);
  font-family: var(--fm); font-size: 11px; font-weight: 500;
  letter-spacing: .08em; text-transform: uppercase;
  padding: 9px 18px; border: 1.5px solid var(--gold);
  border-radius: var(--radius); cursor: pointer; transition: all .2s;
}
.btn-gold:hover { background: var(--gold-l); }

/* ═══════════════════
   SECTION HELPERS
═══════════════════ */
.label {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--fm); font-size: 11px; font-weight: 500;
  letter-spacing: .22em; color: var(--blue); text-transform: uppercase;
  margin-bottom: 10px;
}
.label::before { content: ''; width: 20px; height: 2px; background: var(--blue); }
.label-w { color: var(--teal); }
.label-w::before { background: var(--teal); }

.sec-h {
  font-family: var(--fd);
  font-size: clamp(30px, 3.8vw, 48px);
  font-weight: 800; line-height: 1; letter-spacing: .03em;
  color: var(--tx1); margin-bottom: 14px;
}
.sec-h-w { color: #fff; }
.sec-sub { font-size: 16px; color: var(--tx3); line-height: 1.7; margin-bottom: 36px; }
.sec-sub-w { color: rgba(255,255,255,.7); }

/* Sol back button */
.sol-back {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--fb); font-size: 14px; font-weight: 500;
  color: rgba(255,255,255,.65); cursor: pointer;
  background: none; border: none; margin-bottom: 24px;
  transition: color .2s; text-decoration: none;
}
.sol-back:hover { color: #fff; }

/* ═══════════════════
   HOME HERO
═══════════════════ */
.hero {
  position: relative; overflow: hidden;
  min-height: calc(100vh - 68px);
  display: flex; align-items: center;
  padding: 0 52px 0 52px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy2) 50%, #1e5080 100%);
}
.hero-pattern {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-glow {
  position: absolute; pointer-events: none;
  right: -80px; top: 50%; transform: translateY(-50%);
  width: 700px; height: 700px; border-radius: 50%;
  background: radial-gradient(circle, rgba(14,165,196,.14) 0%, transparent 65%);
}
.hero-glow2 {
  position: absolute; pointer-events: none;
  right: 200px; bottom: -200px;
  width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(26,122,191,.1) 0%, transparent 65%);
}
.hero-ship {
  position: absolute; right: 52px; bottom: 60px; z-index: 2;
  animation: shipFloat 7s ease-in-out infinite;
}
@keyframes shipFloat { 0%,100%{transform:translateY(0);} 50%{transform:translateY(-14px);} }

/* ── WAVE FIX: full 100vw ── */
.hero-wave {
  position: absolute; bottom: 0; left: 0;
  width: 100%; min-width: 100%;
  display: block; line-height: 0;
}
.hero-wave svg {
  display: block;
  width: 100%; height: auto;
  min-width: 100%;
}

.hero-content { position: relative; z-index: 3; max-width: 660px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(14,165,196,.2); border: 1px solid rgba(14,165,196,.4);
  padding: 6px 14px; border-radius: 20px; margin-bottom: 24px;
  font-family: var(--fm); font-size: 11px; letter-spacing: .15em;
  color: rgba(255,255,255,.9); text-transform: uppercase;
}
.hero-tag::before {
  content: ''; width: 7px; height: 7px; border-radius: 50%;
  background: var(--teal); animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1;} 50%{opacity:.4;} }

.hero-h1 {
  font-family: var(--fd);
  font-size: clamp(52px, 6.5vw, 88px);
  font-weight: 800; line-height: .95; letter-spacing: .03em;
  color: #fff; margin-bottom: 22px;
}
.hero-h1 .c  { color: var(--teal); }
.hero-h1 .sm {
  font-size: clamp(26px, 3.2vw, 42px); display: block;
  font-weight: 600; color: rgba(255,255,255,.7); margin-bottom: 6px;
}
.hero-p {
  font-size: 18px; line-height: 1.75; color: rgba(255,255,255,.85);
  font-weight: 400; max-width: 520px; margin-bottom: 40px;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats {
  position: absolute; right: 52px; top: 50%; transform: translateY(-60%);
  z-index: 3;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius);
}
.hst { padding: 18px 28px; text-align: center; }
.hst + .hst { border-top: 1px solid rgba(255,255,255,.1); }
.hst-n { font-family: var(--fd); font-size: 38px; font-weight: 800; color: #fff; line-height: 1; }
.hst-n span { color: var(--teal); }
.hst-l { font-size: 12px; color: rgba(255,255,255,.6); margin-top: 3px; }

/* ═══════════════════
   PRODUCTS SECTION
═══════════════════ */
.products-section { padding: 80px 52px; background: var(--white); }
.section-header { margin-bottom: 48px; }

.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.prod-card {
  background: var(--white); border: 1.5px solid var(--bg3);
  border-radius: 6px; padding: 36px 30px 52px;
  position: relative; overflow: hidden;
  cursor: pointer; transition: border-color .25s, box-shadow .25s, transform .2s;
  text-decoration: none; display: block; color: inherit;
}
.prod-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--teal), var(--blue));
  transform: scaleX(0); transition: transform .35s; transform-origin: left;
}
.prod-card:hover { border-color: var(--blue); box-shadow: var(--shadow2); transform: translateY(-3px); }
.prod-card:hover::before { transform: scaleX(1); }

.pc-num { font-family: var(--fm); font-size: 11px; color: var(--tx4); letter-spacing: .15em; margin-bottom: 20px; }
.pc-icon {
  width: 54px; height: 54px; border-radius: 12px;
  background: linear-gradient(135deg, var(--teal-ll), rgba(26,122,191,.1));
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.pc-icon svg { width: 28px; height: 28px; color: var(--blue); }
.pc-type {
  display: inline-block; font-family: var(--fm); font-size: 10px;
  font-weight: 500; letter-spacing: .1em; text-transform: uppercase;
  background: var(--teal-ll); color: var(--teal);
  padding: 3px 10px; border-radius: 20px; margin-bottom: 12px;
}
.pc-type-gold { background: var(--gold-l); color: var(--gold); }
.pc-name { font-family: var(--fd); font-size: 28px; font-weight: 800; letter-spacing: .04em; color: var(--tx1); margin-bottom: 6px; }
.pc-sub { font-family: var(--fm); font-size: 10px; letter-spacing: .12em; color: var(--blue); text-transform: uppercase; margin-bottom: 14px; }
.pc-desc { font-size: 14px; color: var(--tx3); line-height: 1.7; margin-bottom: 14px; }
.pc-badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; color: var(--tx2); }
.pc-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }
.pc-badge-gold { color: var(--gold); }
.pc-badge-gold::before { background: var(--gold); }
.pc-arrow {
  position: absolute; bottom: 24px; right: 24px;
  font-size: 13px; font-weight: 700; color: var(--blue);
  display: flex; align-items: center; gap: 5px; transition: gap .2s;
}
.prod-card:hover .pc-arrow { gap: 10px; }

.dl-strip {
  display: grid; grid-template-columns: repeat(3, 1fr);
  background: var(--bg2); border: 1px solid var(--bg3);
  border-radius: var(--radius); overflow: hidden; margin-top: 14px;
}
.dl-item {
  background: var(--bg); padding: 16px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.dl-item + .dl-item { border-left: 1px solid var(--bg3); }
.dl-lbl { font-size: 13px; color: var(--tx3); font-weight: 500; }

/* ═══════════════════
   IT SERVICE (HOME)
═══════════════════ */
.it-section { padding: 80px 52px; background: var(--bg); }
.it-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; margin-top: 44px; }
.it-card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.itc {
  background: var(--white); border: 1.5px solid var(--bg3);
  border-radius: 6px; padding: 24px 20px;
  cursor: pointer; transition: border-color .2s, box-shadow .2s;
  text-decoration: none; display: block; color: inherit;
}
.itc:hover { border-color: var(--blue); box-shadow: var(--shadow); }
.itc svg { width: 28px; height: 28px; color: var(--blue); margin-bottom: 12px; display: block; }
.itc-name { font-size: 15px; font-weight: 700; color: var(--tx1); margin-bottom: 6px; }
.itc-desc { font-size: 13px; color: var(--tx3); line-height: 1.6; }

.it-pts { list-style: none; display: flex; flex-direction: column; gap: 18px; margin: 24px 0; }
.it-pt { display: flex; gap: 14px; align-items: flex-start; }
.it-pt-n {
  width: 28px; height: 28px; border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--fm); font-size: 11px; color: #fff;
  flex-shrink: 0; margin-top: 2px;
}
.it-pt-c h4 { font-size: 15px; font-weight: 700; color: var(--tx1); margin-bottom: 4px; }
.it-pt-c p  { font-size: 14px; color: var(--tx3); line-height: 1.6; }

.hours-box {
  background: var(--white); border: 1.5px solid var(--bg3);
  border-left: 4px solid var(--blue); border-radius: var(--radius);
  padding: 18px 20px; display: flex; align-items: flex-start; gap: 12px;
}
.hours-box svg { color: var(--blue); flex-shrink: 0; margin-top: 1px; }
.hours-text { font-size: 14px; color: var(--tx2); line-height: 1.75; }
.hours-text strong { color: var(--tx1); font-weight: 700; }

/* ═══════════════════
   NAS SECTION
═══════════════════ */
.nas-section { padding: 72px 52px; background: var(--navy); }
.nas-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 36px; }
.nas-card {
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12);
  border-radius: 6px; padding: 28px 22px; transition: background .25s;
}
.nas-card:hover { background: rgba(255,255,255,.12); }
.nas-card svg { width: 30px; height: 30px; color: var(--teal); margin-bottom: 14px; display: block; }
.nas-name { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.nas-desc { font-size: 13px; color: rgba(255,255,255,.65); line-height: 1.65; }

/* ═══════════════════
   CONTACT SECTION
═══════════════════ */
.contact-section { padding: 80px 52px; background: var(--white); }
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; margin-top: 44px; }
.ci-row { display: flex; gap: 16px; align-items: flex-start; padding: 20px 0; border-bottom: 1px solid var(--bg2); }
.ci-row:last-child { border-bottom: none; }
.ci-icon { width: 44px; height: 44px; border-radius: 10px; background: var(--teal-ll); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.ci-icon svg { width: 22px; height: 22px; color: var(--blue); }
.ci-lbl { font-family: var(--fm); font-size: 10px; font-weight: 500; letter-spacing: .18em; color: var(--tx4); text-transform: uppercase; margin-bottom: 5px; }
.ci-val { font-size: 18px; font-weight: 700; color: var(--tx1); line-height: 1.3; }
.ci-sub { font-size: 13px; color: var(--tx4); margin-top: 2px; }

.biz-card { background: var(--bg); border: 1.5px solid var(--bg3); border-radius: 6px; padding: 28px 24px; }
.biz-hdr { font-size: 16px; font-weight: 700; color: var(--tx1); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--bg3); }
.biz-row { display: flex; justify-content: space-between; gap: 12px; font-size: 14px; padding: 10px 0; border-bottom: 1px solid var(--bg2); }
.biz-row:last-child { border-bottom: none; }
.biz-k { color: var(--tx4); font-weight: 400; flex-shrink: 0; width: 120px; }
.biz-v { color: var(--tx1); text-align: right; font-weight: 600; }

/* ═══════════════════
   FOOTER
═══════════════════ */
footer {
  padding: 28px 52px; background: var(--navy);
  display: flex; justify-content: space-between;
  align-items: center; flex-wrap: wrap; gap: 12px;
}
.fn { font-family: var(--fd); font-size: 16px; font-weight: 800; letter-spacing: .12em; color: #fff; }
.fs { font-family: var(--fm); font-size: 9px; letter-spacing: .16em; color: rgba(255,255,255,.45); margin-top: 3px; text-transform: uppercase; }
.footer-copy { font-size: 12px; color: rgba(255,255,255,.45); line-height: 1.7; text-align: right; }

/* ═══════════════════
   SOL PAGE HERO
═══════════════════ */
.sol-hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy2) 60%, #1e5080 100%);
  padding: 60px 52px 52px; position: relative; overflow: hidden;
}
.sol-hero-pattern {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 50px 50px;
}
.sol-hero-glow {
  position: absolute; right: -100px; top: -100px; pointer-events: none;
  width: 500px; height: 500px; border-radius: 50%;
  background: radial-gradient(circle, rgba(14,165,196,.12) 0%, transparent 65%);
}
.sh-inner {
  display: grid; grid-template-columns: 1.2fr 1fr;
  gap: 52px; align-items: center; position: relative; z-index: 2;
}
.sh-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(14,165,196,.2); border: 1px solid rgba(14,165,196,.4);
  padding: 5px 14px; border-radius: 20px; margin-bottom: 18px;
}
.sh-badge span { font-family: var(--fm); font-size: 10px; font-weight: 500; letter-spacing: .18em; text-transform: uppercase; color: rgba(255,255,255,.9); }
.sh-badge-gold { background: rgba(184,134,11,.2); border-color: rgba(184,134,11,.4); }
.sh-badge-gold span { color: #f0c060; }

.sh-h1 { font-family: var(--fd); font-size: clamp(52px,6vw,80px); font-weight: 800; letter-spacing: .04em; line-height: .95; color: #fff; margin-bottom: 16px; }
.sh-tagline { font-size: 17px; line-height: 1.7; color: rgba(255,255,255,.8); font-weight: 400; margin-bottom: 24px; }
.sh-tagline-bold { font-size: 17px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.sh-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.sh-tag { font-size: 13px; font-weight: 500; padding: 5px 14px; border: 1px solid rgba(255,255,255,.25); color: rgba(255,255,255,.85); border-radius: 20px; background: rgba(255,255,255,.07); }

.sh-kpi { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sh-kpi-item { background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.15); border-radius: 6px; padding: 20px; text-align: center; }
.sh-kpi-n { font-family: var(--fd); font-size: 32px; font-weight: 800; color: var(--teal); line-height: 1; }
.sh-kpi-n-sm { font-size: 18px; }
.sh-kpi-n-gold { color: var(--gold); }
.sh-kpi-l { font-size: 12px; color: rgba(255,255,255,.6); margin-top: 4px; }

/* ═══════════════════
   SCREENSHOT SLIDER
═══════════════════ */
.slide-section       { padding: 64px 52px; background: var(--white); }
.slide-section-alt   { padding: 64px 52px; background: var(--bg); }

.slider-outer { position: relative; overflow: hidden; margin-top: 36px; }
.slider-track {
  display: flex; gap: 16px;
  transition: transform .4s cubic-bezier(.4,0,.2,1);
}

/* 3-col items */
.slide-item {
  flex: 0 0 calc(33.333% - 11px);
  background: var(--bg); border: 2px solid var(--bg3);
  border-radius: 6px; overflow: hidden;
  transition: border-color .25s, box-shadow .25s;
}
.slide-item:hover { border-color: var(--blue); box-shadow: var(--shadow); }

/* 2-col items (with desc) */
.slide-item-wide {
  flex: 0 0 calc(50% - 8px);
  background: var(--white); border: 1.5px solid var(--bg3);
  border-radius: 6px; overflow: hidden;
  transition: border-color .25s, box-shadow .25s;
}
.slide-item-wide:hover { border-color: var(--blue); box-shadow: var(--shadow); }

.slide-img {
  width: 100%; aspect-ratio: 16/10;
  background: var(--bg2);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; position: relative;
}
.slide-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.slide-img-ph {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  position: absolute; inset: 0; justify-content: center;
  background: var(--bg2);
}
.slide-img-ph svg { width: 36px; height: 36px; color: var(--tx4); opacity: .45; }
.slide-img-ph span { font-size: 11px; color: var(--tx4); font-family: var(--fm); letter-spacing: .08em; text-transform: uppercase; }

.slide-wide-img { width: 100%; aspect-ratio: 16/9; background: var(--bg2); display: flex; align-items: center; justify-content: center; overflow: hidden; position: relative; }
.slide-wide-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

.slide-caption { padding: 14px 16px; }
.slide-caption-title { font-size: 14px; font-weight: 700; color: var(--tx1); margin-bottom: 3px; }
.slide-caption-desc  { font-size: 12px; color: var(--tx3); line-height: 1.5; }

.slide-wide-body { padding: 20px 22px; }
.slide-wide-badge { display: inline-block; font-family: var(--fm); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; background: var(--teal-ll); color: var(--teal); padding: 3px 10px; border-radius: 20px; margin-bottom: 10px; }
.slide-wide-title { font-size: 16px; font-weight: 700; color: var(--tx1); margin-bottom: 8px; }
.slide-wide-desc  { font-size: 14px; color: var(--tx3); line-height: 1.65; }

.slider-controls { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; }
.slider-dots { display: flex; gap: 8px; }
.slider-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--bg3);
  cursor: pointer; transition: background .2s, width .2s;
  border: none;
}
.slider-dot.active { background: var(--blue); width: 24px; border-radius: 4px; }
.slider-btns { display: flex; gap: 8px; }
.slider-btn {
  width: 40px; height: 40px; border-radius: 50%;
  border: 2px solid var(--bg3); background: var(--white);
  color: var(--tx2); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all .2s;
}
.slider-btn:hover { border-color: var(--blue); background: var(--blue); color: #fff; }
.slider-btn svg { width: 16px; height: 16px; }

/* ═══════════════════
   FEATURES GRID
═══════════════════ */
.feat-section     { padding: 64px 52px; background: var(--white); }
.feat-section-alt { padding: 64px 52px; background: var(--bg); }

.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 36px; }
.feat-card {
  background: var(--bg); border: 1.5px solid var(--bg3);
  border-radius: 6px; padding: 28px 24px;
  transition: border-color .2s, box-shadow .2s;
}
.feat-card:hover { border-color: var(--blue); box-shadow: var(--shadow); }
.feat-num { font-family: var(--fm); font-size: 10px; color: var(--tx4); letter-spacing: .18em; margin-bottom: 12px; }
.feat-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--teal-ll); display: flex; align-items: center;
  justify-content: center; margin-bottom: 14px;
}
.feat-icon svg { width: 22px; height: 22px; color: var(--blue); }
.feat-name { font-size: 16px; font-weight: 700; color: var(--tx1); margin-bottom: 10px; }
.feat-desc { font-size: 14px; color: var(--tx2); line-height: 1.7; }
.feat-list { list-style: none; display: flex; flex-direction: column; gap: 7px; }
.feat-list li { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; color: var(--tx2); line-height: 1.55; }
.feat-list li::before { content: '›'; color: var(--blue); flex-shrink: 0; font-weight: 900; font-size: 16px; line-height: 1.2; }
.feat-list li.warn { color: var(--blue); font-weight: 700; }
.feat-list li.warn::before { color: var(--blue); }

/* ═══════════════════
   SOL CTA
═══════════════════ */
.sol-cta {
  padding: 52px; background: var(--bg); border-top: 2px solid var(--bg3);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px;
}
.sol-cta h2 { font-family: var(--fd); font-size: 28px; font-weight: 800; color: var(--tx1); margin-bottom: 6px; letter-spacing: .03em; }
.sol-cta p  { font-size: 15px; color: var(--tx3); }
.sol-cta-btns { display: flex; gap: 12px; flex-wrap: wrap; }

/* ═══════════════════
   DARK GRID SECTIONS
═══════════════════ */
.sec-dark { padding: 64px 52px; background: var(--navy); }

.security-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 36px; }
.sec-card { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: 6px; padding: 26px 20px; transition: background .2s; }
.sec-card:hover { background: rgba(255,255,255,.13); }
.sec-card svg { width: 28px; height: 28px; color: var(--teal); margin-bottom: 12px; display: block; }
.sec-card-name { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 7px; }
.sec-card-desc { font-size: 13px; color: rgba(255,255,255,.6); line-height: 1.65; }

.process-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 36px; }
.ps-item { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: 6px; padding: 26px 20px; }
.ps-num { font-family: var(--fd); font-size: 42px; font-weight: 800; color: rgba(14,165,196,.25); line-height: 1; margin-bottom: 10px; }
.ps-name { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.ps-desc { font-size: 13px; color: rgba(255,255,255,.6); line-height: 1.65; }

/* ═══════════════════
   OCEANOFFICE MODULES
═══════════════════ */
.oo-benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 36px; }
.oo-ben { background: var(--white); border: 1.5px solid var(--bg3); border-radius: 6px; padding: 30px 26px; transition: border-color .2s, box-shadow .2s; }
.oo-ben:hover { border-color: var(--blue); box-shadow: var(--shadow); }
.oo-ben svg { width: 32px; height: 32px; color: var(--blue); margin-bottom: 14px; display: block; }
.oo-ben-name { font-size: 17px; font-weight: 700; color: var(--tx1); margin-bottom: 8px; }
.oo-ben-desc { font-size: 14px; color: var(--tx2); line-height: 1.7; }

.oo-modules { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 36px; }
.oo-mod { background: var(--white); border: 1.5px solid var(--bg3); border-radius: 6px; padding: 28px 24px; transition: border-color .2s, box-shadow .2s; }
.oo-mod:hover { border-color: var(--blue); box-shadow: var(--shadow); }
.oo-mod-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.oo-emoji { font-size: 24px; }
.oo-title { font-size: 17px; font-weight: 700; color: var(--tx1); }
.oo-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.oo-list li { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; color: var(--tx2); line-height: 1.55; }
.oo-list li::before { content: '›'; color: var(--blue); flex-shrink: 0; font-weight: 900; font-size: 16px; line-height: 1.2; }

/* ═══════════════════
   ABOUT
═══════════════════ */
.about-overview  { padding: 72px 52px; background: var(--white); }
.overview-grid   { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; margin-top: 44px; }
.overview-text p { font-size: 16px; color: var(--tx2); line-height: 1.85; margin-bottom: 18px; }

.kpi-strip { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.kpi-item { background: var(--bg); border: 1.5px solid var(--bg3); border-radius: 6px; padding: 24px; text-align: center; }
.kpi-n { font-family: var(--fd); font-size: 36px; font-weight: 800; color: var(--blue); line-height: 1; }
.kpi-l { font-size: 13px; color: var(--tx3); margin-top: 5px; }

.history-section { padding: 72px 52px; background: var(--bg); }
.history { list-style: none; max-width: 800px; margin-top: 36px; }
.hi { display: grid; grid-template-columns: 64px 1fr; gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--bg3); }
.hi:last-child { border-bottom: none; }
.hi-y { font-family: var(--fm); font-size: 13px; font-weight: 500; color: var(--blue); padding-top: 3px; }
.hi-c { font-size: 15px; color: var(--tx2); line-height: 1.7; }
.hi-c strong { color: var(--tx1); font-weight: 700; }
.hi-sub { font-size: 13px; color: var(--tx4); margin-top: 4px; line-height: 1.6; }
.hi-now { background: var(--teal-ll); border-left: 4px solid var(--teal); padding: 16px 16px !important; border-radius: 0 var(--radius) var(--radius) 0; }

/* ═══════════════════
   CERT PAGE
═══════════════════ */
.cert-section { padding: 72px 52px; background: var(--white); }
.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 36px; }
.cert-card {
  background: var(--white); border: 1.5px solid var(--bg3);
  border-radius: 6px; padding: 36px 28px;
  display: flex; flex-direction: column; align-items: center; text-align: center;
  transition: border-color .25s, box-shadow .25s;
}
.cert-card:hover { border-color: var(--gold); box-shadow: 0 4px 20px rgba(184,134,11,.12); }
.cert-issuer { font-family: var(--fm); font-size: 10px; font-weight: 500; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); margin-bottom: 18px; }
.cert-img-area {
  width: 160px; height: 110px;
  background: var(--bg); border: 2px dashed var(--bg3);
  border-radius: 4px; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; position: relative;
}
.cert-img-area img { width: 100%; height: 100%; object-fit: contain; }
.cert-img-ph { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.cert-img-ph svg { width: 32px; height: 32px; color: var(--tx4); opacity: .5; }
.cert-img-ph span { font-family: var(--fm); font-size: 10px; color: var(--tx4); letter-spacing: .08em; text-transform: uppercase; }
.cert-name { font-size: 17px; font-weight: 700; color: var(--tx1); margin-bottom: 7px; }
.cert-desc { font-size: 14px; color: var(--tx3); line-height: 1.6; }
.cert-note {
  background: var(--bg); border: 1.5px solid var(--bg3);
  border-left: 4px solid var(--blue); border-radius: var(--radius);
  padding: 18px 22px; margin-top: 32px;
  display: flex; gap: 12px; align-items: flex-start;
}
.cert-note svg { color: var(--blue); flex-shrink: 0; margin-top: 2px; }
.cert-note-txt { font-size: 14px; color: var(--tx2); line-height: 1.7; }
.cert-note-txt strong { color: var(--tx1); font-weight: 700; }

/* ═══════════════════
   FAQ
═══════════════════ */
.faq-section { padding: 72px 52px; background: var(--white); }
.faq-list { border: 1.5px solid var(--bg3); border-radius: 6px; overflow: hidden; margin-top: 36px; }
.faq-item { background: var(--white); }
.faq-item + .faq-item { border-top: 1px solid var(--bg2); }
.faq-q { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; cursor: pointer; transition: background .15s; }
.faq-q:hover { background: var(--bg); }
.faq-item.open .faq-q { background: var(--teal-ll); }
.faq-qt { display: flex; align-items: center; gap: 14px; }
.faq-qn  { font-family: var(--fm); font-size: 11px; font-weight: 500; color: var(--blue); letter-spacing: .1em; flex-shrink: 0; }
.faq-qtxt { font-size: 15px; font-weight: 700; color: var(--tx1); }
.faq-tog { color: var(--blue); flex-shrink: 0; transition: transform .3s; width: 20px; height: 20px; }
.faq-item.open .faq-tog { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 24px 20px 54px; font-size: 15px; color: var(--tx2); line-height: 1.8; border-top: 1px solid var(--bg2); }
.faq-item.open .faq-a { display: block; padding-top: 16px; }

/* ═══════════════════
   INTRO / LOADING SCREEN
═══════════════════ */
#intro-screen {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--navy);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
  transition: opacity .8s ease, visibility .8s ease;
}
#intro-screen.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.intro-content { text-align: center; position: relative; z-index: 2; }

/* 나침반 */
.intro-compass {
  width: 180px; height: 180px;
  position: relative; margin: 0 auto 32px;
}
.compass-ring1 {
  position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid rgba(14,165,196,.5);
  animation: compassSpin 8s linear infinite;
}
.compass-ring2 {
  position: absolute; inset: 12px; border-radius: 50%;
  border: 1px dashed rgba(14,165,196,.3);
  animation: compassSpin 5s linear infinite reverse;
}
.compass-ring3 {
  position: absolute; inset: 26px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.1);
}
@keyframes compassSpin { to { transform: rotate(360deg); } }

/* 나침반 선 */
.compass-lines {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
}
.compass-lines::before,
.compass-lines::after {
  content: '';
  position: absolute;
  background: rgba(14,165,196,.3);
}
.compass-lines::before { width: 1px; height: 100%; }
.compass-lines::after  { width: 100%; height: 1px; }

/* 나침반 바늘 */
.compass-needle {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  animation: needleSway 4s ease-in-out infinite;
}
@keyframes needleSway {
  0%,100%{ transform: rotate(-12deg); }
  50%    { transform: rotate(12deg); }
}
.compass-needle svg { width: 80px; height: 80px; }

/* 나침반 중앙 점 */
.compass-center {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
}
.compass-center::after {
  content: ''; width: 10px; height: 10px; border-radius: 50%;
  background: var(--teal); box-shadow: 0 0 12px var(--teal);
}

/* 배경 파도 */
.intro-waves {
  position: absolute; bottom: 0; left: 0; right: 0; height: 160px;
  overflow: hidden; pointer-events: none;
}
.iwave {
  position: absolute; bottom: 0; width: 200%; height: 100%;
}
.iwave-a { animation: iwaveMove 8s ease-in-out infinite; }
.iwave-b { animation: iwaveMove 6s ease-in-out infinite reverse; opacity: .5; }
@keyframes iwaveMove { 0%,100%{transform:translateX(0);} 50%{transform:translateX(-20%);} }

/* 별 배경 */
.intro-stars {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 10% 8%, rgba(255,255,255,.8) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 25% 5%, rgba(14,165,196,.7) 0%, transparent 100%),
    radial-gradient(1px 1px at 40% 12%, rgba(255,255,255,.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 60% 6%, rgba(255,255,255,.5) 0%, transparent 100%),
    radial-gradient(2px 2px at 75% 10%, rgba(14,165,196,.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 88% 7%, rgba(255,255,255,.7) 0%, transparent 100%),
    radial-gradient(1px 1px at 5%  25%, rgba(255,255,255,.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 50% 20%, rgba(255,255,255,.5) 0%, transparent 100%);
}

/* 로고 텍스트 */
.intro-logo-name {
  font-family: var(--fd); font-size: 44px; font-weight: 800;
  letter-spacing: .16em; color: #fff;
  margin-bottom: 8px;
  animation: introFadeUp .8s .3s ease both;
}
.intro-logo-sub {
  font-family: var(--fm); font-size: 11px; letter-spacing: .3em;
  color: var(--teal); text-transform: uppercase;
  margin-bottom: 36px;
  animation: introFadeUp .8s .5s ease both;
}

/* 슬로건 */
.intro-slogan {
  font-size: 16px; color: rgba(255,255,255,.6); font-weight: 300;
  letter-spacing: .05em;
  animation: introFadeUp .8s .7s ease both;
}

/* 로딩 바 */
.intro-bar-wrap {
  width: 200px; height: 3px; background: rgba(255,255,255,.1);
  border-radius: 2px; margin: 24px auto 0; overflow: hidden;
  animation: introFadeUp .8s .9s ease both;
}
.intro-bar {
  height: 100%; background: linear-gradient(90deg, var(--teal), var(--blue));
  border-radius: 2px;
  animation: loadBar 2s .5s ease forwards;
  width: 0;
}
@keyframes loadBar { to { width: 100%; } }

@keyframes introFadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════
   PAGE ANIMATIONS
═══════════════════ */
.page-in {
  animation: pageIn .45s ease both;
}
@keyframes pageIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════
   RESPONSIVE (간단)
═══════════════════ */
@media (max-width: 960px) {
  nav { padding: 0 24px; }
  .hero { padding: 40px 24px 100px; }
  .hero-stats { display: none; }
  .hero-ship  { display: none; }
  .sh-inner   { grid-template-columns: 1fr; }
  .prod-grid, .it-layout, .contact-layout,
  .overview-grid, .cert-grid, .nas-grid,
  .security-grid, .process-strip { grid-template-columns: 1fr; }
  section[class*="-section"], section[class*="-dark"] { padding: 48px 24px; }
  .sol-cta { padding: 36px 24px; }
  .feat-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .feat-grid { grid-template-columns: 1fr; }
  .dl-strip  { grid-template-columns: 1fr; }
  .dl-item + .dl-item { border-left: none; border-top: 1px solid var(--bg3); }
}