/* SKYPLUS Corporate Homepage — bright theme */

:root {
  --cyan: #22D3E8;
  --cyan-dark: #0FA8BC;
  --cyan-deep: #0B7A8A;
  --coral: #FF6F91;
  --coral-dark: #E85479;
  --yellow: #FFC845;
  --ink: #142433;
  --ink-soft: #4A5C6B;
  --bg: #F5FCFD;
  --bg-alt: #ECFAFB;
  --card-bg: #FFFFFF;
  --border-soft: #DFF3F5;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Noto Sans KR", "Malgun Gothic", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 clamp(1.2rem, 4vw, 2rem); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem clamp(1.2rem, 4vw, 2.4rem);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}

.site-header .brand img { height: 34px; }

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.6vw, 2.2rem);
}

.site-nav a {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--ink-soft);
  padding: 0.4rem 0.1rem;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.site-nav a:hover, .site-nav a.active { color: var(--cyan-deep); border-color: var(--cyan); }

.nav-cta {
  background: var(--ink);
  color: #fff !important;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  font-size: 0.85rem !important;
  border-bottom: none !important;
}
.nav-cta:hover { background: var(--cyan-deep); }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.3rem;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  margin: 5px 0;
  transition: transform 0.2s, opacity 0.2s;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(4rem, 10vw, 7rem) 0 clamp(3rem, 8vw, 5rem);
  background: linear-gradient(155deg, #E9FEFF 0%, #F5FCFD 45%, #FFF3F7 100%);
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
  opacity: 0.55;
  z-index: 0;
}
.hero-blob.b1 { width: 320px; height: 320px; background: radial-gradient(circle, #7BEFFA, transparent 70%); top: -80px; right: -60px; }
.hero-blob.b2 { width: 260px; height: 260px; background: radial-gradient(circle, #FFD6E1, transparent 70%); bottom: -60px; left: -40px; }
.hero-blob.b3 { width: 160px; height: 160px; background: radial-gradient(circle, #FFEBAF, transparent 70%); bottom: 20%; right: 12%; }

.hero .wrap { position: relative; z-index: 1; text-align: center; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #fff;
  border: 1px solid var(--border-soft);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--cyan-deep);
  box-shadow: 0 6px 18px -10px rgba(15, 168, 188, 0.4);
  margin-bottom: 1.6rem;
}

.hero h1 {
  font-size: clamp(2rem, 5.2vw, 3.4rem);
  line-height: 1.28;
  font-weight: 800;
  margin: 0 0 1.2rem;
  letter-spacing: -0.01em;
}

.hero h1 .accent {
  background: linear-gradient(90deg, var(--cyan-dark), var(--coral));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lead {
  max-width: 640px;
  margin: 0 auto 2.2rem;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--ink-soft);
}

.hero-ctas {
  display: flex;
  justify-content: center;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.85rem 1.7rem;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: linear-gradient(90deg, var(--cyan), var(--cyan-dark));
  color: #fff;
  box-shadow: 0 12px 24px -10px rgba(15, 168, 188, 0.55);
}
.btn-ghost {
  background: #fff;
  color: var(--ink);
  border: 1.5px solid var(--border-soft);
}
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan-deep); }

.btn-coral {
  background: linear-gradient(90deg, var(--coral), var(--coral-dark));
  color: #fff;
  box-shadow: 0 12px 24px -10px rgba(232, 84, 121, 0.5);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  max-width: 820px;
  margin: 0 auto;
}

.hero-stats .stat {
  background: #fff;
  border: 1px solid var(--border-soft);
  border-radius: 16px;
  padding: 1.1rem 0.6rem;
}

.hero-stats .stat b {
  display: block;
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  color: var(--cyan-deep);
  font-weight: 800;
}
.hero-stats .stat span { font-size: 0.78rem; color: var(--ink-soft); }

/* ---------- Section shell ---------- */
.section { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.section-alt { background: var(--bg-alt); }

.section-kicker {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--cyan-deep);
  background: #fff;
  border: 1px solid var(--border-soft);
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 0.9rem;
}

.section-title {
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  font-weight: 800;
  margin: 0 0 0.6rem;
  letter-spacing: -0.01em;
}

.section-sub {
  color: var(--ink-soft);
  max-width: 640px;
  margin: 0 0 2.6rem;
  font-size: 0.98rem;
}

.section-head { text-align: center; }
.section-head .section-sub { margin-left: auto; margin-right: auto; }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}

.about-copy p { color: var(--ink-soft); margin: 0 0 1rem; }

.about-facts {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.about-facts li {
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  padding: 0.8rem 1rem;
  font-size: 0.88rem;
}
.about-facts li b { display: block; color: var(--ink); font-size: 0.78rem; font-weight: 700; color: var(--cyan-deep); margin-bottom: 0.15rem; }

.about-panel {
  background: linear-gradient(160deg, #fff, var(--bg-alt));
  border: 1px solid var(--border-soft);
  border-radius: 24px;
  padding: clamp(1.6rem, 3vw, 2.2rem);
  box-shadow: 0 24px 50px -30px rgba(20, 36, 51, 0.25);
}

.about-panel .ceo-name { font-size: 1.3rem; font-weight: 800; margin: 0 0 0.15rem; }
.about-panel .ceo-role { color: var(--cyan-deep); font-weight: 700; font-size: 0.85rem; margin-bottom: 1.1rem; }
.about-panel p { color: var(--ink-soft); font-size: 0.92rem; margin: 0 0 1.2rem; }

.tag-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag {
  background: #fff;
  border: 1px solid var(--border-soft);
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
}

/* ---------- Strength cards ---------- */
.strength-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.1rem;
  margin-top: 2.6rem;
}

.strength-card {
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  border-radius: 18px;
  padding: 1.5rem 1.3rem;
  transition: transform 0.2s, box-shadow 0.2s;
}
.strength-card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px -26px rgba(20,36,51,0.28); }

.strength-card .icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--cyan), var(--cyan-dark));
  color: #fff; font-weight: 800; font-size: 1.1rem;
  margin-bottom: 0.9rem;
}
.strength-card h3 { font-size: 1rem; margin: 0 0 0.4rem; }
.strength-card p { font-size: 0.85rem; color: var(--ink-soft); margin: 0; }

/* ---------- Business pillars ---------- */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.pillar-card {
  background: var(--card-bg);
  border-radius: 22px;
  padding: 2rem 1.6rem;
  border: 1px solid var(--border-soft);
  position: relative;
  overflow: hidden;
}

.pillar-card .pillar-num {
  position: absolute;
  top: -10px; right: 4px;
  font-size: 5rem;
  font-weight: 800;
  color: var(--bg-alt);
  z-index: 0;
}

.pillar-card > * { position: relative; z-index: 1; }

.pillar-card .icon {
  width: 52px; height: 52px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
}
.pillar-card.c1 .icon { background: linear-gradient(135deg, #7BEFFA, var(--cyan)); }
.pillar-card.c2 .icon { background: linear-gradient(135deg, #FFC9D7, var(--coral)); }
.pillar-card.c3 .icon { background: linear-gradient(135deg, #FFE9AE, var(--yellow)); }

.pillar-card h3 { font-size: 1.15rem; margin: 0 0 0.6rem; }
.pillar-card p { font-size: 0.88rem; color: var(--ink-soft); margin: 0 0 1.1rem; }

.pillar-card ul {
  list-style: none; padding: 0; margin: 0 0 1rem;
  display: flex; flex-direction: column; gap: 0.4rem;
}
.pillar-card ul li {
  font-size: 0.82rem; color: var(--ink-soft);
  padding-left: 1.1rem; position: relative;
}
.pillar-card ul li::before {
  content: "";
  position: absolute; left: 0; top: 0.5em;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan);
}

.platform-chip-row { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.platform-chip {
  font-size: 0.72rem; font-weight: 700;
  background: var(--bg-alt); color: var(--cyan-deep);
  padding: 0.25rem 0.6rem; border-radius: 999px;
}

/* ---------- Portfolio ---------- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.4rem;
}

.portfolio-card {
  background: var(--card-bg);
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--border-soft);
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 44px -30px rgba(20, 36, 51, 0.3);
}

.portfolio-thumb { aspect-ratio: 16/9; overflow: hidden; background: linear-gradient(135deg, var(--cyan), var(--coral)); }
.portfolio-thumb img { width: 100%; height: 100%; object-fit: cover; }
.portfolio-thumb.no-img { display: flex; align-items: center; justify-content: center; padding: 1.5rem; text-align: center; }
.portfolio-thumb.no-img span { color: #fff; font-weight: 800; font-size: 1.3rem; text-shadow: 0 2px 10px rgba(0,0,0,0.15); }

.portfolio-body { padding: 1.4rem 1.5rem 1.6rem; display: flex; flex-direction: column; flex: 1; }
.portfolio-genre { font-size: 0.72rem; font-weight: 800; color: var(--coral-dark); margin-bottom: 0.4rem; }
.portfolio-body h3 { font-size: 1.1rem; margin: 0 0 0.5rem; }
.portfolio-body p { font-size: 0.86rem; color: var(--ink-soft); margin: 0 0 1.2rem; flex: 1; }

.play-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  background: var(--ink); color: #fff;
  font-size: 0.85rem; font-weight: 800;
  padding: 0.7rem 1.1rem; border-radius: 999px;
  align-self: flex-start;
  transition: background 0.2s, transform 0.15s;
}
.play-btn:hover { background: var(--cyan-deep); transform: translateY(-2px); }

.play-btn-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.play-btn-alt {
  background: #fff;
  color: var(--ink);
  border: 1.5px solid var(--border-soft);
}
.play-btn-alt:hover { background: #fff; border-color: var(--cyan); color: var(--cyan-deep); }

/* ---------- 2026 lineup ---------- */
.lineup-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}

.lineup-card {
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  border-radius: 18px;
  padding: 1.3rem 1.3rem 1.4rem;
  position: relative;
}

.lineup-badge {
  position: absolute; top: -10px; left: 1.2rem;
  background: var(--coral);
  color: #fff;
  font-size: 0.68rem; font-weight: 800;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
}

.lineup-card .lineup-genre { font-size: 0.72rem; color: var(--cyan-deep); font-weight: 800; margin: 0.6rem 0 0.3rem; }
.lineup-card h4 { font-size: 1.02rem; margin: 0 0 0.5rem; }
.lineup-card p { font-size: 0.82rem; color: var(--ink-soft); margin: 0; }

/* ---------- Partner strip ---------- */
.partner-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
}
.partner-pill {
  background: #fff;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 0.55rem 1.3rem;
  font-weight: 800;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

/* ---------- Contact ---------- */
.contact-panel {
  background: linear-gradient(135deg, var(--cyan-deep), var(--cyan-dark) 60%, var(--coral-dark));
  border-radius: 28px;
  padding: clamp(2.2rem, 6vw, 3.4rem);
  color: #fff;
  text-align: center;
}
.contact-panel h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); margin: 0 0 0.8rem; font-weight: 800; }
.contact-panel p { color: rgba(255,255,255,0.88); max-width: 560px; margin: 0 auto 1.8rem; }
.contact-panel .btn-primary { background: #fff; color: var(--cyan-deep); box-shadow: none; }
.contact-panel .btn-primary:hover { background: #F5FCFD; }

.contact-meta {
  margin-top: 2.2rem;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.6rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.85);
}

/* ---------- Footer ---------- */
.site-footer {
  padding: 2.4rem 0 2rem;
  text-align: center;
}
.site-footer img { height: 26px; margin: 0 auto 0.8rem; }
.site-footer p { font-size: 0.78rem; color: var(--ink-soft); margin: 0.2rem 0; }

.site-footer .footer-links {
  display: flex;
  justify-content: center;
  gap: 1.4rem;
  margin-bottom: 0.9rem;
  font-size: 0.8rem;
  font-weight: 700;
}
.site-footer .footer-links a { color: var(--ink-soft); }
.site-footer .footer-links a:hover { color: var(--cyan-deep); text-decoration: underline; }

/* ---------- Back to top ---------- */
.to-top {
  position: fixed;
  right: 1.4rem; bottom: 1.4rem;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 14px 30px -14px rgba(20,36,51,0.5);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.25s, transform 0.25s;
  z-index: 150;
}
.to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .strength-grid { grid-template-columns: repeat(2, 1fr); }
  .pillar-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .lineup-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .site-nav { position: fixed; top: 62px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 1rem 1.2rem 1.4rem; border-bottom: 1px solid var(--border-soft); box-shadow: 0 18px 30px -20px rgba(20,36,51,0.3); transform: translateY(-8px); opacity: 0; pointer-events: none; transition: opacity 0.2s, transform 0.2s; }
  .site-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .site-nav a { padding: 0.7rem 0.2rem; border-bottom: 1px solid var(--border-soft); }
  .nav-cta { text-align: center; margin-top: 0.4rem; }
  .menu-toggle { display: block; }
  .strength-grid { grid-template-columns: 1fr; }
  .lineup-grid { grid-template-columns: 1fr; }
  .about-facts { grid-template-columns: 1fr; }
}