/* ============================================================
   DENEX - Main Stylesheet (Bright Theme)
   ============================================================ */

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

:root {
  --red:      #c82229;
  --red-dk:   #a01a1f;
  --red-lt:   #fdf2f2;
  --charcoal: #342c2a;
  --char-lt:  #5a4f4d;
  --gray:     #888888;
  --gray-lt:  #f5f4f3;
  --white:    #ffffff;
  --bg:       #ffffff;
  --section-bg:#494949;
  --border:   rgba(52,44,42,.08);
  --font-en:  'Outfit', sans-serif;
  --font-body:'DM Sans', 'Noto Sans KR', sans-serif;
  --ease:     cubic-bezier(.25,.46,.45,.94);
}

html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-body); background: var(--bg); color: var(--charcoal); line-height: 1.6; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
h1, h2, h3, h4, p { overflow-wrap: break-word; word-break: keep-all; }

/* ── Utilities ───────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 40px; }
.tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-en); font-size: 11px; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase;
  color: var(--red); margin-bottom: 16px;
}
.tag::before { content: ''; width: 24px; height: 2px; background: var(--red); }
.section { padding: 100px 0; }

/* ── Scroll Reveal ───────────────────────────────────────── */
.reveal { opacity:0; transform:translateY(40px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.active { opacity:1; transform:translateY(0); }
.reveal-left { opacity:0; transform:translateX(-40px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal-left.active { opacity:1; transform:translateX(0); }
.reveal-right { opacity:0; transform:translateX(40px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal-right.active { opacity:1; transform:translateX(0); }
.stagger > * { opacity:0; transform:translateY(30px); transition:opacity .6s var(--ease), transform .6s var(--ease); }
.stagger.active > *:nth-child(1) { opacity:1; transform:translateY(0); transition-delay:.05s; }
.stagger.active > *:nth-child(2) { opacity:1; transform:translateY(0); transition-delay:.10s; }
.stagger.active > *:nth-child(3) { opacity:1; transform:translateY(0); transition-delay:.15s; }
.stagger.active > *:nth-child(4) { opacity:1; transform:translateY(0); transition-delay:.20s; }
.stagger.active > *:nth-child(5) { opacity:1; transform:translateY(0); transition-delay:.25s; }
.stagger.active > *:nth-child(6) { opacity:1; transform:translateY(0); transition-delay:.30s; }
.stagger.active > *:nth-child(7) { opacity:1; transform:translateY(0); transition-delay:.35s; }
.stagger.active > *:nth-child(8) { opacity:1; transform:translateY(0); transition-delay:.40s; }
.stagger.active > *:nth-child(9) { opacity:1; transform:translateY(0); transition-delay:.45s; }
.stagger.active > *:nth-child(10) { opacity:1; transform:translateY(0); transition-delay:.50s; }
.stagger.active > *:nth-child(11) { opacity:1; transform:translateY(0); transition-delay:.55s; }
.stagger.active > *:nth-child(12) { opacity:1; transform:translateY(0); transition-delay:.60s; }
.stagger.active > *:nth-child(13) { opacity:1; transform:translateY(0); transition-delay:.65s; }
.stagger.active > *:nth-child(14) { opacity:1; transform:translateY(0); transition-delay:.70s; }
.stagger.active > *:nth-child(15) { opacity:1; transform:translateY(0); transition-delay:.75s; }
.stagger.active > *:nth-child(16) { opacity:1; transform:translateY(0); transition-delay:.80s; }
.stagger.active > *:nth-child(17) { opacity:1; transform:translateY(0); transition-delay:.85s; }
.stagger.active > *:nth-child(18) { opacity:1; transform:translateY(0); transition-delay:.90s; }
.stagger.active > *:nth-child(19) { opacity:1; transform:translateY(0); transition-delay:.95s; }
.stagger.active > *:nth-child(20) { opacity:1; transform:translateY(0); transition-delay:.100s; }

/* ── Header ──────────────────────────────────────────────── */
#header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 100;
  /* background: rgba(255,255,255,0); */
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid transparent;
  transition: background .3s, border-color .3s, box-shadow .3s, transform .4s cubic-bezier(.25,.46,.45,.94);
}
#header.scrolled {
  background: rgba(255,255,255,.97);
  border-bottom-color: var(--border);
  box-shadow: 0 2px 16px rgba(0,0,0,.06);
}
#header.hide { transform: translateY(-100%); }

.header-inner {
  display: flex; align-items: center; height: 72px;
  max-width: 1200px; margin: 0 auto; padding: 0 40px; gap: 40px;
}
.logo {
  font-family: var(--font-en); font-size: 22px; font-weight: 800;
  color: var(--red); letter-spacing: -0.5px;
}
.logo span { color: var(--charcoal); }
.logo img { height: 36px; width: auto }

.gnb { display: flex; gap: 4px; margin-left: auto; }

/* ── GNB 드롭다운 ──────────────────────────────────────── */
.gnb-item {
  position: relative;
}
.gnb-item:hover .gnb-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
 
.gnb-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  min-width: 160px;
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,.12);
  border: 1px solid var(--border);
  padding: 6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s var(--ease), transform .2s var(--ease);
  z-index: 200;
  white-space: nowrap;
}
 
/* 말풍선 화살표 */
.gnb-dropdown::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 10px; height: 10px;
  background: var(--white);
  border-left: 1px solid var(--border);
  border-top: 1px solid var(--border);
  rotate: 45deg;
}
 
.gnb-dropdown a {
  display: block;
  padding: 9px 14px;
  font-size: 13px; font-weight: 500;
  color: var(--char-lt);
  border-radius: 8px;
  transition: background .15s, color .15s;
}
.gnb-dropdown a:hover {
  background: var(--gray-lt);
  color: var(--red);
}
.gnb-dropdown a:hover {
  background: var(--gray-lt);
  color: var(--red);
}
.gnb-link {
  font-size: 14px; font-weight: 500; color: var(--charcoal);
  padding: 8px 16px; border-radius: 8px; transition: color .15s, background .15s;
}
.gnb-link:hover { color: var(--red); background: var(--red-lt); }

.lang-toggle { display: flex; background: rgba(52,44,42,.08); border-radius: 20px; padding: 3px; gap: 2px; }
.lang-btn {
  font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 16px;
  cursor: pointer; color: var(--charcoal); border: none; background: none; transition: all .15s;
}
.lang-btn.active { background: var(--red); color: var(--white); }

/* ── Hero Slider ─────────────────────────────────────────── */
.hero-slider {
  position: relative; overflow: hidden;
  height: 100vh; min-height: 600px; margin-top: 72px;
}
.slides-track { height: 100%; }
.slide {
  position: absolute; inset: 0;
  display: flex; align-items: center;
  opacity: 0; transition: opacity .8s var(--ease);
  pointer-events: none;
}
.slide.active { opacity: 1; pointer-events: auto; }

/* 슬라이드별 배경 테마 */
.slide-bg { position: absolute; inset: 0; }
.slide--fpga     .slide-bg { background: linear-gradient(135deg, #fff5f5 0%, #fff 60%, #fdf2f2 100%); }
.slide--embedded .slide-bg { background: linear-gradient(135deg, #f5f7ff 0%, #fff 60%, #eef1ff 100%); }
.slide--nvidia   .slide-bg { background: linear-gradient(135deg, #f5fff8 0%, #fff 60%, #edfff3 100%); }
.slide--product  .slide-bg { background: linear-gradient(135deg, #fffbf0 0%, #fff 60%, #fff8e6 100%); }

/* 배경 패턴 */
.slide-pattern {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(52,44,42,.04) 1px, transparent 1px);
  background-size: 32px 32px;
}
/* 장식 도형 */
.slide-shape {
  position: absolute; border-radius: 50%; opacity: .12;
}
.slide--fpga     .slide-shape { background: var(--red); }
.slide--embedded .slide-shape { background: #4361ee; }
.slide--nvidia   .slide-shape { background: #2d9e5f; }
.slide--product  .slide-shape { background: #e07b00; }

.slide-shape.s1 { width: 500px; height: 500px; top: -200px; right: -100px; }
.slide-shape.s2 { width: 300px; height: 300px; bottom: -100px; right: 200px; opacity: .07; }

/* 슬라이드 콘텐츠 */
.slide-content {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr 420px;
  gap: 60px; align-items: center;
}
.slide-inner { animation: slideIn .7s var(--ease) both; }
.slide:not(.active) .slide-inner { animation: none; }
@keyframes slideIn {
  from { opacity:0; transform: translateY(24px); }
  to   { opacity:1; transform: translateY(0); }
}

.slide-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-en); font-size: 12px; font-weight: 700;
  letter-spacing: 3px; text-transform: uppercase;
  color: var(--red); margin-bottom: 20px;
}
.slide-tag::before { content: ''; width: 20px; height: 2px; background: var(--red); }

.slide h1 {
  font-family: var(--font-en); font-size: clamp(36px, 4.5vw, 64px);
  font-weight: 800; line-height: 1.1; letter-spacing: -2px;
  color: var(--charcoal); margin-bottom: 20px;
}
.slide p {
  font-size: 16px; color: var(--char-lt); line-height: 1.8;
  margin-bottom: 28px; max-width: 440px;
}
.slide-keywords {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 36px;
}
.slide-keywords span {
  font-size: 12px; font-weight: 600; color: var(--red);
  background: var(--red-lt); border: 1px solid rgba(200,34,41,.15);
  padding: 4px 12px; border-radius: 20px;
}
.slide-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--charcoal); color: var(--white);
  font-size: 14px; font-weight: 600; padding: 14px 28px;
  border-radius: 10px; transition: background .15s, transform .15s;
}
.slide-btn:hover { background: var(--red); transform: translateY(-2px); }

/* 슬라이드 비주얼 (이미지 자리) */
.slide-visual { display: flex; align-items: center; justify-content: center; }
.slide-img-placeholder {
  width: 100%; aspect-ratio: 4/3;
  background: rgba(52,44,42,.04); border-radius: 20px;
  border: 2px dashed rgba(52,44,42,.12);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 12px;
}
.placeholder-icon { font-size: 56px; }
.slide-img-placeholder span {
  font-family: var(--font-en); font-size: 13px; font-weight: 700;
  color: var(--gray); letter-spacing: 1px; text-transform: uppercase;
}

/* 슬라이더 컨트롤 */
.slider-controls {
  position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 20px; z-index: 10;
}
.slider-arrow {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--white); border: 1px solid var(--border);
  font-size: 16px; color: var(--charcoal); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s, border-color .15s;
  box-shadow: 0 2px 8px rgba(0,0,0,.08);
}
.slider-arrow:hover { background: var(--red); color: var(--white); border-color: var(--red); }

.slider-dots { display: flex; gap: 8px; align-items: center; }
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(52,44,42,.2); border: none; cursor: pointer;
  transition: all .3s var(--ease); padding: 0;
}
.dot.active { width: 28px; border-radius: 4px; background: var(--red); }

/* 진행 바 */
.slider-progress {
  position: absolute; bottom: 0; left: 0; right: 0; height: 3px;
  background: rgba(52,44,42,.08); z-index: 10;
}
.slider-progress-bar {
  height: 100%; background: var(--red);
  width: 0%; transition: width linear;
}

/* ── Services ────────────────────────────────────────────── */
.services { background: var(--gray-lt); }
.section-head { margin-bottom: 56px; }
.section-head h2 {
  font-family: var(--font-en); font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 800; letter-spacing: -1.5px; color: var(--charcoal); line-height: 1.15;
}
.section-head h2 span { color: var(--red); }
.section-head p { font-size: 15px; color: var(--gray); line-height: 1.7; max-width: 440px; margin-top: 12px; }
 
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.svc-card {
  position: relative;
  background: rgba(200,34,41,0.03);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(200,34,41,0.12);
  border-radius: 20px; padding: 32px 28px; overflow: hidden;
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.svc-card:hover {
  border-color: rgba(200,34,41,.28);
  box-shadow: 0 12px 40px rgba(200,34,41,.08);
  transform: translateY(-2px);
}
.svc-card:hover .svc-icon i { transform: scale(1.05); }
.svc-icon {
  width: 52px; height: 52px;
  background: rgba(200,34,41,0.08);
  border: 1px solid rgba(200,34,41,0.15);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.svc-icon i {
  width: 24px; height: 24px;
  stroke: var(--red); stroke-width: 1.5;
  transition: transform .2s var(--ease);
}
.svc-num { font-family: var(--font-en); font-size: 11px; font-weight: 700; color: var(--red); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 10px; }
.svc-card h3 { font-family: var(--font-en); font-size: 20px; font-weight: 700; color: var(--charcoal); margin-bottom: 10px; }
.svc-card p { font-size: 14px; color: var(--gray); line-height: 1.7; margin-bottom: 20px; }
.svc-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.svc-tag {
  font-size: 11px; font-weight: 600; color: var(--red);
  background: var(--red-lt); border: 1px solid rgba(200,34,41,.15);
  padding: 3px 10px; border-radius: 6px;
}
/* ── About ───────────────────────────────────────────────── */
/* 나중에 이미지로 교체할 때 */
.about {
    background: url('/images/banner/sub_visual06.jpg') center/cover no-repeat;
}
.about-inner { max-width: 860px; }
.about-text h2 {
  font-family: var(--font-en); font-size: clamp(24px, 3vw, 40px);
  font-weight: 800; color: var(--white); letter-spacing: -1.5px; line-height: 1.15; margin-bottom: 20px;
}
.about-text h2 em { color: var(--red); font-style: normal; }
.about-text > p { font-size: 15px; color: rgba(255,255,255,.65); line-height: 1.8; margin-bottom: 36px; }
.about-feats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feat-row {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 20px 16px;
  background: rgba(200,34,41,0.06);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-radius: 14px; border: 1px solid rgba(200,34,41,0.15);
  transition: background .2s, transform .2s, border-color .2s;
}
.feat-row:hover {
  background: rgba(200,34,41,0.1);
  border-color: rgba(200,34,41,0.25);
  transform: translateY(-2px);
}
.feat-row:hover .feat-icon i { transform: scale(1.05); }
.feat-icon {
  width: 40px; height: 40px;
  background: rgba(200,34,41,0.2);
  border: 1px solid rgba(200,34,41,0.25);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.feat-icon i {
  width: 20px; height: 20px;
  stroke: rgba(255,255,255,0.9); stroke-width: 1.5;
  transition: transform .2s var(--ease);
}
.feat-row h4 {
  font-family: var(--font-en); font-size: 12px; font-weight: 700;
  color: var(--white); margin-bottom: 6px; line-height: 1.3; letter-spacing: 0.3px;
}
.feat-row p { font-size: 12px; color: rgba(255,255,255,.55); line-height: 1.6; }

.feat-row:nth-child(2) .feat-icon,
.feat-row:nth-child(3) .feat-icon{
  color:rgba(255,255,255,0.5);
}
/* ── Tech / Products ─────────────────────────────────────── */
.tech { background: var(--white); }
.tech-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.tech-cards { display: flex; flex-direction: column; gap: 12px; }
.tech-card {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 18px 22px;
  background: rgba(200,34,41,0.02);
  border-radius: 14px; border: 1px solid rgba(200,34,41,0.1);
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.tech-card:hover {
  border-color: rgba(200,34,41,.22);
  box-shadow: 0 4px 20px rgba(200,34,41,.07);
  transform: translateY(-2px);
}
.tech-card:hover .tech-card-icon i { transform: scale(1.05); }
.tech-card-icon {
  width: 44px; height: 44px;
  background: rgba(200,34,41,0.07);
  border: 1px solid rgba(200,34,41,0.12);
  border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-top: 2px;
}
.tech-card-icon i {
  width: 20px; height: 20px;
  stroke: var(--red); stroke-width: 1.5;
  transition: transform .2s var(--ease);
}
.tech-card h4 {
  font-family: var(--font-en); font-size: 13px; font-weight: 700;
  color: var(--charcoal); margin-bottom: 4px; line-height: 1.4;
}
.tech-card p { font-size: 12px; color: var(--gray); line-height: 1.6; }
.tech-big {
  font-family: var(--font-en); font-size: clamp(32px, 3.5vw, 48px);
  font-weight: 800; color: var(--charcoal); letter-spacing: -2px; line-height: 1.1; margin-bottom: 20px;
}
.tech-big em { color: var(--red); font-style: normal; }
.tech-right p { font-size: 15px; color: var(--gray); line-height: 1.8; margin-bottom: 28px; }
.tech-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.tech-badge {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 14px; background: var(--gray-lt);
  border: 1px solid var(--border); border-radius: 8px;
  font-size: 13px; font-weight: 600; color: var(--charcoal);
}
.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--red); }

/* ── CTA ─────────────────────────────────────────────────── */
.cta-section { background: var(--red); }
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 80% 50%, rgba(255,255,255,.1) 0%, transparent 60%);
}
.cta-inner {
  position: relative; display: flex; align-items: center;
  justify-content: space-between; gap: 40px;
  padding: 72px 40px; max-width: 1200px; margin: 0 auto;
}
.cta-inner h2 {
  font-family: var(--font-en); font-size: clamp(24px, 3vw, 40px);
  font-weight: 800; color: var(--white); letter-spacing: -1.5px;
  max-width: 500px; line-height: 1.2;
}
.cta-inner h2 span { opacity: .75; font-weight: 400; font-size: .65em; display: block; letter-spacing: 0; margin-top: 6px; }
.btn-white {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--white); color: var(--red);
  font-size: 15px; font-weight: 700; padding: 15px 30px;
  border-radius: 10px; white-space: nowrap;
  transition: transform .15s, box-shadow .15s;
}
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.12); }

/* ── Slide SVG visual ────────────────────────────────────── */
.slide-visual { position: relative; width: 100%; max-width: 480px; }
.slide-svg { width: 100%; height: auto; display: block; }

/* ── Slide SVG animation ────────────────────────────────────── */
.sensor-glow{
  fill:#34d399;
  opacity:.08;

  animation:glowPulse 4s ease-in-out infinite;
}

.sensor-node{
  fill:rgba(52,211,153,0.15);
  stroke:#34d399;
}

@keyframes glowPulse{

  0%,100%{
    opacity:.04;
    transform:scale(1);
  }

  50%{
    opacity:.14;
    transform:scale(1.4);
  }
}

/* ── Footer ──────────────────────────────────────────────── */
#footer { background: var(--section-bg); padding: 60px 0 28px; }
.footer-top {
  display: grid; grid-template-columns: 260px 1fr 1fr; gap: 40px;
  padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-logo { font-family: var(--font-en); font-size: 22px; font-weight: 800; color: var(--white); margin-bottom: 10px; }
.footer-logo img { height: 32px; width: auto;}
.footer-logo span { color: var(--red); }
.footer-desc { font-size: 13px; color: rgba(255,255,255,.4); line-height: 1.7; }
.footer-col h4 {
  font-family: var(--font-en); font-size: 11px; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase; color: rgba(255,255,255,.35); margin-bottom: 16px;
}
.footer-col li { margin-bottom: 8px; }
.footer-col a { font-size: 14px; color: rgba(255,255,255,.6); transition: color .15s; }
.footer-col a:hover { color: var(--white); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 24px; }
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,.3); }
.footer-contact { display: flex; gap: 20px; }
.footer-contact a { font-size: 13px; color: rgba(255,255,255,.45); transition: color .15s; }
.footer-contact a:hover { color: var(--white); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 960px) {
  .slide-content { grid-template-columns: 1fr; }
  .slide-visual { display: none; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .about-feats { grid-template-columns: 1fr; }
  .tech-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .cta-inner { flex-direction: column; text-align: center; }
}
@media (max-width: 760px) {
  .about-feats { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .header-inner { padding: 0 20px; }
  .gnb { display: none; }
  .services-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .cta-inner { padding: 48px 20px; }
}