/* ============================================================
   WIA CAREER — Shared Design System
   미니멀 + AI테크 하이브리드
   ============================================================ */

@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.css');

:root{
  /* ── Ink & surface ── */
  --ink:        #0b0b12;
  --ink-2:      #14141e;
  --paper:      #ffffff;
  --paper-2:    #f6f7fb;
  --paper-3:    #eef0f7;
  --line:       #e6e8f0;
  --muted:      #6b7080;
  --muted-2:    #9498a8;

  /* ── Brand accent (per-site overridable) ── */
  --a1: #6366f1;   /* indigo  */
  --a2: #8b5cf6;   /* violet  */
  --a3: #22d3ee;   /* cyan    */
  --accent: var(--a1);
  --grad: linear-gradient(120deg, var(--a1) 0%, var(--a2) 50%, var(--a3) 100%);
  --grad-soft: linear-gradient(120deg, color-mix(in srgb, var(--a1) 14%, transparent), color-mix(in srgb, var(--a3) 14%, transparent));

  /* ── Type ── */
  --sans: "Pretendard", -apple-system, BlinkMacSystemFont, system-ui, "Segoe UI", Roboto, sans-serif;

  /* ── Layout ── */
  --w: 1180px;
  --r: 18px;
  --r-lg: 28px;
  --nav-h: 72px;

  --shadow-s: 0 1px 2px rgba(16,18,40,.04), 0 4px 16px rgba(16,18,40,.05);
  --shadow-m: 0 8px 30px rgba(16,18,40,.08), 0 2px 8px rgba(16,18,40,.04);
  --shadow-l: 0 30px 70px -20px rgba(16,18,40,.28);
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  font-family:var(--sans);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  letter-spacing:-0.011em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
::selection{ background:color-mix(in srgb, var(--a2) 28%, transparent); }

/* ── Layout helpers ── */
.wrap{ width:100%; max-width:var(--w); margin:0 auto; padding:0 24px; }
.section{ padding:clamp(72px, 11vw, 140px) 0; }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:13px; font-weight:650; letter-spacing:.04em;
  color:var(--accent); text-transform:uppercase;
  padding:7px 14px; border-radius:100px;
  background:color-mix(in srgb, var(--accent) 9%, transparent);
  border:1px solid color-mix(in srgb, var(--accent) 18%, transparent);
}
.eyebrow .dot{ width:6px; height:6px; border-radius:50%; background:var(--accent); box-shadow:0 0 0 4px color-mix(in srgb, var(--accent) 20%, transparent); }

h1,h2,h3{ letter-spacing:-0.03em; line-height:1.08; font-weight:800; }
.h-display{ font-size:clamp(40px, 7vw, 84px); font-weight:850; letter-spacing:-0.04em; line-height:1.02; }
.h-section{ font-size:clamp(30px, 4.4vw, 52px); }
.lead{ font-size:clamp(17px, 2.1vw, 21px); color:var(--muted); font-weight:450; line-height:1.55; }
.grad-text{ background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }

/* ── Buttons ── */
.btn{
  display:inline-flex; align-items:center; gap:9px;
  font-weight:650; font-size:15px; letter-spacing:-0.01em;
  padding:14px 26px; border-radius:100px;
  cursor:pointer; border:1px solid transparent;
  transition:transform .25s cubic-bezier(.2,.8,.2,1), box-shadow .25s, background .25s, color .2s;
  white-space:nowrap;
}
.btn .arr{ transition:transform .25s; }
.btn:hover .arr{ transform:translateX(3px); }
.btn-primary{ background:var(--ink); color:#fff; box-shadow:var(--shadow-m); }
.btn-primary:hover{ transform:translateY(-2px); box-shadow:var(--shadow-l); }
.btn-grad{ background:var(--grad); color:#fff; box-shadow:0 10px 30px -8px color-mix(in srgb, var(--a2) 60%, transparent); }
.btn-grad:hover{ transform:translateY(-2px); box-shadow:0 18px 44px -10px color-mix(in srgb, var(--a2) 65%, transparent); }
.btn-ghost{ background:transparent; color:var(--ink); border-color:var(--line); }
.btn-ghost:hover{ background:var(--paper-2); border-color:var(--muted-2); transform:translateY(-1px); }

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:fixed; inset:0 0 auto 0; height:var(--nav-h); z-index:100;
  display:flex; align-items:center;
  transition:background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:color-mix(in srgb, var(--paper) 80%, transparent);
  backdrop-filter:saturate(180%) blur(18px);
  -webkit-backdrop-filter:saturate(180%) blur(18px);
  border-bottom-color:var(--line);
}
.nav .wrap{ display:flex; align-items:center; justify-content:space-between; gap:24px; }
.brand{ display:flex; align-items:center; gap:11px; font-weight:800; font-size:18px; letter-spacing:-0.02em; }
.brand .mark{
  width:30px; height:30px; border-radius:9px; background:var(--grad);
  display:grid; place-items:center; color:#fff; font-size:15px; font-weight:850;
  box-shadow:0 4px 12px -2px color-mix(in srgb, var(--a2) 55%, transparent);
}
.brand small{ display:block; font-size:11px; font-weight:550; color:var(--muted); letter-spacing:.02em; margin-top:1px; }
.nav-links{ display:flex; align-items:center; gap:4px; }
.nav-links a{
  font-size:14.5px; font-weight:550; color:var(--ink); padding:9px 14px; border-radius:10px;
  transition:background .2s, color .2s;
}
.nav-links a:hover{ background:var(--paper-2); color:var(--accent); }
.nav-cta{ display:flex; align-items:center; gap:10px; }
.nav-cta .btn{ padding:10px 20px; font-size:14px; }
.burger{ display:none; width:42px; height:42px; border-radius:11px; border:1px solid var(--line); background:var(--paper); cursor:pointer; position:relative; }
.burger span{ position:absolute; left:11px; right:11px; height:2px; background:var(--ink); border-radius:2px; transition:.3s; }
.burger span:nth-child(1){ top:15px; } .burger span:nth-child(2){ top:20px; } .burger span:nth-child(3){ top:25px; }
.burger.open span:nth-child(1){ top:20px; transform:rotate(45deg); }
.burger.open span:nth-child(2){ opacity:0; }
.burger.open span:nth-child(3){ top:20px; transform:rotate(-45deg); }

.mobile-menu{
  position:fixed; inset:var(--nav-h) 0 auto 0; z-index:99;
  background:color-mix(in srgb, var(--paper) 96%, transparent); backdrop-filter:blur(20px);
  border-bottom:1px solid var(--line);
  padding:18px 24px 26px; display:none; flex-direction:column; gap:4px;
  transform:translateY(-12px); opacity:0; transition:.3s; pointer-events:none;
}
.mobile-menu.open{ display:flex; transform:translateY(0); opacity:1; pointer-events:auto; }
.mobile-menu a{ padding:13px 8px; font-weight:600; border-bottom:1px solid var(--line); }
.mobile-menu a:last-of-type{ border-bottom:none; }
.mobile-menu .btn{ margin-top:14px; justify-content:center; }

/* ============================================================
   HERO
   ============================================================ */
.hero{ position:relative; padding:calc(var(--nav-h) + clamp(60px,9vw,110px)) 0 clamp(70px,9vw,120px); overflow:hidden; }
.hero-aurora{
  position:absolute; inset:-30% -10% auto -10%; height:120%; z-index:-1;
  background:
    radial-gradient(40% 50% at 20% 25%, color-mix(in srgb, var(--a1) 32%, transparent), transparent 70%),
    radial-gradient(38% 46% at 80% 18%, color-mix(in srgb, var(--a3) 30%, transparent), transparent 70%),
    radial-gradient(45% 55% at 55% 40%, color-mix(in srgb, var(--a2) 24%, transparent), transparent 72%);
  filter:blur(36px); opacity:.85; animation:drift 18s ease-in-out infinite alternate;
}
@keyframes drift{ from{ transform:translate3d(-2%,0,0) scale(1);} to{ transform:translate3d(3%,2%,0) scale(1.08);} }
.hero-grid-bg{
  position:absolute; inset:0; z-index:-1; pointer-events:none;
  background-image:linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:54px 54px; opacity:.5;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 75%);
}
.hero-inner{ max-width:920px; }
.hero h1{ margin:22px 0 0; }
.hero .lead{ margin:26px 0 0; max-width:620px; }
.hero-actions{ margin-top:38px; display:flex; gap:14px; flex-wrap:wrap; align-items:center; }
.hero-trust{ margin-top:46px; display:flex; gap:30px; flex-wrap:wrap; align-items:center; color:var(--muted); font-size:14px; }
.hero-trust b{ color:var(--ink); }

/* ── Marquee / logo strip ── */
.strip{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding:22px 0; overflow:hidden; background:var(--paper-2); }
.strip-track{ display:flex; gap:54px; align-items:center; white-space:nowrap; animation:scroll-x 28s linear infinite; }
.strip-track span{ font-weight:700; font-size:17px; color:var(--muted-2); letter-spacing:-0.01em; }
@keyframes scroll-x{ from{ transform:translateX(0);} to{ transform:translateX(-50%);} }

/* ============================================================
   STATS
   ============================================================ */
.stats{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
.stat{ padding:6px 0; }
.stat .num{ font-size:clamp(36px,5vw,58px); font-weight:850; letter-spacing:-0.04em; line-height:1; }
.stat .lbl{ margin-top:10px; color:var(--muted); font-size:15px; font-weight:500; }

/* ============================================================
   CARDS / GRID
   ============================================================ */
.grid{ display:grid; gap:22px; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }

.card{
  position:relative; background:var(--paper); border:1px solid var(--line);
  border-radius:var(--r-lg); padding:30px;
  transition:transform .3s cubic-bezier(.2,.8,.2,1), box-shadow .3s, border-color .3s;
  overflow:hidden;
}
.card:hover{ transform:translateY(-5px); box-shadow:var(--shadow-l); border-color:color-mix(in srgb, var(--accent) 30%, var(--line)); }
.card .ico{
  width:52px; height:52px; border-radius:14px; display:grid; place-items:center;
  background:var(--grad-soft); color:var(--accent); margin-bottom:20px;
  border:1px solid color-mix(in srgb, var(--accent) 20%, transparent);
}
.card .ico svg{ width:24px; height:24px; }
.card h3{ font-size:21px; font-weight:750; letter-spacing:-0.02em; }
.card p{ margin-top:10px; color:var(--muted); font-size:15px; }
.card .more{ margin-top:18px; display:inline-flex; align-items:center; gap:6px; font-weight:650; font-size:14px; color:var(--accent); }
.card .more .arr{ transition:transform .25s; }
.card:hover .more .arr{ transform:translateX(4px); }

/* ── Center cards (linkable, big) ── */
.center-card{
  position:relative; display:flex; flex-direction:column; min-height:280px;
  background:var(--ink); color:#fff; border-radius:var(--r-lg); padding:32px; overflow:hidden;
  transition:transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s;
}
.center-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-l); }
.center-card .cc-glow{ position:absolute; inset:auto -20% -40% -20%; height:80%; background:var(--grad); filter:blur(50px); opacity:.4; transition:opacity .35s; z-index:0; }
.center-card:hover .cc-glow{ opacity:.65; }
.center-card>*{ position:relative; z-index:1; }
.center-card .cc-tag{ font-size:12.5px; font-weight:650; color:rgba(255,255,255,.7); letter-spacing:.05em; text-transform:uppercase; }
.center-card h3{ font-size:25px; margin-top:auto; font-weight:800; }
.center-card .cc-sub{ margin-top:12px; color:rgba(255,255,255,.72); font-size:14.5px; }
.center-card .cc-items{ margin-top:18px; display:flex; flex-wrap:wrap; gap:8px; }
.center-card .cc-items span{ font-size:12.5px; font-weight:550; padding:6px 12px; border-radius:100px; background:rgba(255,255,255,.1); border:1px solid rgba(255,255,255,.16); }
.center-card .cc-go{ position:absolute; top:30px; right:30px; width:40px; height:40px; border-radius:50%; background:rgba(255,255,255,.12); display:grid; place-items:center; transition:.3s; }
.center-card:hover .cc-go{ background:#fff; color:var(--ink); transform:rotate(-45deg); }

/* ── Feature / split ── */
.split{ display:grid; grid-template-columns:1.05fr .95fr; gap:clamp(40px,6vw,80px); align-items:center; }
.feature-list{ display:flex; flex-direction:column; gap:18px; margin-top:30px; }
.feature-list li{ list-style:none; display:flex; gap:15px; align-items:flex-start; }
.feature-list .fi{ flex:none; width:30px; height:30px; border-radius:9px; background:var(--grad-soft); color:var(--accent); display:grid; place-items:center; margin-top:1px; }
.feature-list .fi svg{ width:16px; height:16px; }
.feature-list b{ font-size:16.5px; font-weight:700; }
.feature-list p{ color:var(--muted); font-size:14.5px; margin-top:3px; }

.visual-panel{
  position:relative; border-radius:var(--r-lg); overflow:hidden; aspect-ratio:4/3.4;
  background:var(--ink); border:1px solid var(--line);
}
.visual-panel .vp-glow{ position:absolute; inset:0; background:var(--grad); opacity:.85; }
.visual-panel .vp-grid{ position:absolute; inset:0; background-image:linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px); background-size:40px 40px; }
.visual-panel .vp-orb{ position:absolute; border-radius:50%; filter:blur(2px); }
.visual-panel .vp-card{
  position:absolute; left:50%; top:50%; transform:translate(-50%,-50%);
  background:rgba(255,255,255,.92); backdrop-filter:blur(8px); border-radius:18px; padding:22px 26px;
  box-shadow:0 30px 60px -20px rgba(0,0,0,.5); min-width:230px;
}
.visual-panel .vp-card .vc-row{ display:flex; align-items:center; gap:12px; }
.visual-panel .vp-card .vc-dot{ width:38px; height:38px; border-radius:10px; background:var(--grad); }
.visual-panel .vp-card .vc-bar{ height:9px; border-radius:6px; background:var(--paper-3); margin-top:12px; }

/* ============================================================
   CTA band
   ============================================================ */
.cta-band{ position:relative; border-radius:var(--r-lg); overflow:hidden; background:var(--ink); color:#fff; padding:clamp(48px,7vw,80px) clamp(32px,6vw,72px); text-align:center; }
.cta-band .cb-glow{ position:absolute; inset:auto -10% -60% -10%; height:120%; background:var(--grad); filter:blur(60px); opacity:.45; }
.cta-band>*{ position:relative; z-index:1; }
.cta-band h2{ font-size:clamp(28px,4vw,46px); }
.cta-band p{ margin:18px auto 0; color:rgba(255,255,255,.74); max-width:540px; font-size:17px; }
.cta-band .cta-actions{ margin-top:34px; display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }
.cta-band .btn-light{ background:#fff; color:var(--ink); }
.cta-band .btn-line{ background:transparent; color:#fff; border-color:rgba(255,255,255,.3); }
.cta-band .btn-line:hover{ background:rgba(255,255,255,.1); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer{ background:var(--ink); color:rgba(255,255,255,.66); padding:72px 0 40px; }
.footer .f-top{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; padding-bottom:48px; border-bottom:1px solid rgba(255,255,255,.1); }
.footer .brand{ color:#fff; }
.footer .brand small{ color:rgba(255,255,255,.6); }
.footer .f-desc{ margin-top:18px; font-size:14px; max-width:300px; line-height:1.7; }
.footer h4{ color:#fff; font-size:14px; font-weight:700; letter-spacing:.02em; margin-bottom:16px; }
.footer ul{ list-style:none; display:flex; flex-direction:column; gap:11px; }
.footer ul a{ font-size:14px; color:rgba(255,255,255,.64); transition:color .2s; }
.footer ul a:hover{ color:#fff; }
.footer .f-bot{ margin-top:30px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:14px; font-size:13px; color:rgba(255,255,255,.5); }

/* ============================================================
   Reveal animation
   ============================================================ */
.reveal{ opacity:0; transform:translateY(26px); transition:opacity .7s cubic-bezier(.2,.8,.2,1), transform .7s cubic-bezier(.2,.8,.2,1); }
.reveal.in{ opacity:1; transform:none; }
.reveal.d1{ transition-delay:.08s; } .reveal.d2{ transition-delay:.16s; }
.reveal.d3{ transition-delay:.24s; } .reveal.d4{ transition-delay:.32s; }
@media (prefers-reduced-motion:reduce){ *{ animation:none !important; transition:none !important; } .reveal{ opacity:1; transform:none; } }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:980px){
  .grid-4{ grid-template-columns:repeat(2,1fr); }
  .grid-3{ grid-template-columns:repeat(2,1fr); }
  .split{ grid-template-columns:1fr; }
  .footer .f-top{ grid-template-columns:1fr 1fr; gap:32px; }
}
@media (max-width:760px){
  .nav-links, .nav-cta .btn{ display:none; }
  .burger{ display:block; }
  .stats{ grid-template-columns:repeat(2,1fr); gap:30px 20px; }
  .grid-4,.grid-3,.grid-2{ grid-template-columns:1fr; }
  .footer .f-top{ grid-template-columns:1fr 1fr; }
  .hero-trust{ gap:18px; }
}
@media (max-width:460px){
  .wrap{ padding:0 18px; }
  .footer .f-top{ grid-template-columns:1fr; }
}

/* ============================================================
   DETAIL PAGE COMPONENTS
   ============================================================ */
/* ── Breadcrumb ── */
.breadcrumb{ display:flex; align-items:center; gap:8px; font-size:13.5px; color:var(--muted); flex-wrap:wrap; }
.breadcrumb a{ color:var(--muted); transition:color .2s; }
.breadcrumb a:hover{ color:var(--accent); }
.breadcrumb .sep{ color:var(--muted-2); }
.breadcrumb b{ color:var(--ink); font-weight:600; }

/* ── Sub hero (detail) ── */
.subhero{ position:relative; padding:calc(var(--nav-h) + clamp(40px,6vw,70px)) 0 clamp(40px,6vw,64px); overflow:hidden; border-bottom:1px solid var(--line); }
.subhero .hero-aurora{ opacity:.6; }
.subhero h1{ font-size:clamp(34px,5.4vw,62px); margin:20px 0 0; letter-spacing:-0.035em; line-height:1.05; }
.subhero .lead{ margin-top:20px; max-width:640px; }
.subhero-actions{ margin-top:30px; display:flex; gap:12px; flex-wrap:wrap; }
.subhero-meta{ margin-top:32px; display:flex; gap:12px; flex-wrap:wrap; }
.chip{ font-size:13px; font-weight:600; color:var(--ink); padding:9px 16px; border-radius:100px; background:var(--paper); border:1px solid var(--line); box-shadow:var(--shadow-s); }
.chip b{ color:var(--accent); }

/* ── Prose / overview ── */
.prose{ max-width:760px; }
.prose p{ font-size:17px; color:var(--muted); line-height:1.8; margin-top:18px; }
.prose p:first-child{ margin-top:0; }
.prose strong{ color:var(--ink); font-weight:650; }

/* ── Curriculum / numbered list ── */
.curri{ display:flex; flex-direction:column; gap:14px; }
.curri-item{ display:flex; gap:20px; align-items:flex-start; padding:22px 24px; border:1px solid var(--line); border-radius:var(--r); background:var(--paper); transition:border-color .25s, transform .25s, box-shadow .25s; }
.curri-item:hover{ border-color:color-mix(in srgb,var(--accent) 30%,var(--line)); transform:translateX(4px); box-shadow:var(--shadow-s); }
.curri-item .ci-no{ flex:none; width:42px; height:42px; border-radius:12px; background:var(--grad); color:#fff; font-weight:800; display:grid; place-items:center; font-size:16px; }
.curri-item h4{ font-size:17.5px; font-weight:750; letter-spacing:-0.02em; }
.curri-item p{ margin-top:5px; color:var(--muted); font-size:14.5px; }

/* ── Two-col info / spec ── */
.speclist{ list-style:none; display:grid; gap:0; border:1px solid var(--line); border-radius:var(--r); overflow:hidden; }
.speclist li{ display:grid; grid-template-columns:180px 1fr; gap:20px; padding:18px 24px; border-bottom:1px solid var(--line); align-items:center; }
.speclist li:last-child{ border-bottom:none; }
.speclist .sk{ font-weight:650; font-size:14.5px; color:var(--ink); }
.speclist .sv{ color:var(--muted); font-size:14.5px; }
.speclist li:nth-child(even){ background:var(--paper-2); }

/* ── FAQ (native details) ── */
.faq{ display:flex; flex-direction:column; gap:12px; max-width:820px; }
.faq details{ border:1px solid var(--line); border-radius:var(--r); background:var(--paper); overflow:hidden; transition:border-color .25s, box-shadow .25s; }
.faq details[open]{ border-color:color-mix(in srgb,var(--accent) 28%,var(--line)); box-shadow:var(--shadow-s); }
.faq summary{ cursor:pointer; list-style:none; padding:20px 24px; font-weight:650; font-size:16px; display:flex; justify-content:space-between; align-items:center; gap:16px; }
.faq summary::-webkit-details-marker{ display:none; }
.faq summary .q-ico{ flex:none; width:26px; height:26px; border-radius:8px; background:var(--grad-soft); color:var(--accent); display:grid; place-items:center; font-size:18px; font-weight:700; transition:transform .3s; }
.faq details[open] summary .q-ico{ transform:rotate(45deg); }
.faq .faq-a{ padding:0 24px 22px; color:var(--muted); font-size:15px; line-height:1.75; }

/* ── Related (sibling) cards ── */
.related-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.related-card{ display:flex; flex-direction:column; gap:6px; padding:22px 24px; border:1px solid var(--line); border-radius:var(--r); background:var(--paper); transition:transform .25s, box-shadow .25s, border-color .25s; }
.related-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-m); border-color:color-mix(in srgb,var(--accent) 30%,var(--line)); }
.related-card .rc-tag{ font-size:12px; font-weight:600; color:var(--accent); letter-spacing:.03em; }
.related-card h4{ font-size:17px; font-weight:700; }
.related-card .rc-go{ margin-top:8px; font-size:13.5px; font-weight:650; color:var(--muted); display:inline-flex; gap:6px; align-items:center; }
.related-card:hover .rc-go{ color:var(--accent); }

@media (max-width:760px){
  .related-grid{ grid-template-columns:1fr; }
  .speclist li{ grid-template-columns:120px 1fr; gap:12px; padding:16px 18px; }
}