/* ===========================================
   세바스찬 — Vertical Landing Common Styles
   (party-rooms, practice-rooms, meeting-rooms, space-management-app)
   =========================================== */

:root {
  --c-navy:        #071B3A;
  --c-navy-deep:   #031225;
  --c-navy-royal:  #102B57;
  --c-navy-soft:   #0B2348;
  --c-gold:        #D8A85A;
  --c-gold-soft:   #F0C979;
  --c-cream:       #FFF4E3;
  --c-text:        #F7F4EE;
  --c-muted:       #7D8DAA;
  --c-charcoal:    #131A2A;
  --c-border:      rgba(216, 168, 90, 0.18);
  --c-border-soft: rgba(216, 168, 90, 0.10);

  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 24px;
  --r-xl: 32px;

  --container: 1200px;

  --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, system-ui, sans-serif;
  --font-serif: 'Cormorant Garamond', 'Pretendard', serif;

  --shadow-card:       0 24px 60px -24px rgba(0, 0, 0, 0.55);
  --shadow-card-hover: 0 30px 80px -20px rgba(216, 168, 90, 0.25), 0 8px 24px rgba(0,0,0,0.4);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--c-navy-deep);
  color: var(--c-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--c-gold);
  padding: 8px 16px;
  border: 1px solid var(--c-border);
  border-radius: 999px;
  background: rgba(216, 168, 90, 0.06);
}
.eyebrow::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--c-gold); box-shadow: 0 0 10px var(--c-gold);
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--c-text);
  margin: 18px 0 14px;
}
.section-title .accent { color: var(--c-gold); }
.section-subtitle {
  color: var(--c-muted);
  font-size: clamp(15px, 1.6vw, 17px);
  max-width: 640px;
}
.section-head {
  text-align: center;
  display: flex; flex-direction: column; align-items: center;
  margin-bottom: 56px;
}
.section-head .section-subtitle { margin: 0 auto; }
.gold-rule {
  width: 56px; height: 1px; margin: 24px auto;
  background: linear-gradient(90deg, transparent, var(--c-gold), transparent);
  opacity: 0.7;
}

/* ===========================
   Navigation (메인과 동일 톤)
   =========================== */
.nav {
  position: fixed; top: 20px; left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  width: calc(100% - 40px);
  max-width: 1080px;
  transition: top 0.4s ease, transform 0.4s ease;
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
  padding: 0 12px 0 24px;
  background: rgba(7, 27, 58, 0.72);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border: 1px solid var(--c-border-soft);
  border-radius: 999px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 16px; color: var(--c-text);
  letter-spacing: -0.01em;
}
.nav-logo .logo-mark {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--c-navy-royal), var(--c-navy));
  border: 1px solid var(--c-border);
  color: var(--c-gold);
  font-family: var(--font-serif);
  font-weight: 700; font-size: 18px;
}
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu a {
  font-size: 14px; font-weight: 500; color: var(--c-text);
  padding: 8px 14px; border-radius: 999px;
  opacity: 0.82; transition: all 0.25s ease;
}
.nav-menu a:hover {
  opacity: 1;
  background: rgba(216, 168, 90, 0.10);
  color: var(--c-gold-soft);
}
.nav-cta {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--c-gold);
  color: var(--c-navy-deep);
  transition: all 0.25s ease;
  box-shadow: 0 6px 20px -6px rgba(216,168,90,0.5);
}
.nav-cta:hover {
  background: var(--c-gold-soft);
  transform: translateY(-1px);
}
@media (max-width: 720px) {
  .nav-menu { display: none; }
}

/* ===========================
   Hero
   =========================== */
.hero {
  position: relative;
  padding: 160px 0 80px;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 75% 10%, rgba(216,168,90,0.12), transparent 60%),
    radial-gradient(ellipse 70% 80% at 20% 90%, rgba(16,43,87,0.6), transparent 60%),
    linear-gradient(180deg, var(--c-navy-deep) 0%, var(--c-navy) 60%, var(--c-navy-deep) 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.hero-copy { max-width: 580px; }
.hero h1.hero-title {
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--c-text);
  margin-top: 24px;
}
.hero h1.hero-title .accent { color: var(--c-gold); }
.hero-desc {
  margin-top: 22px;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.7;
  color: var(--c-muted);
  max-width: 520px;
}
.hero-actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 26px; border-radius: 999px;
  font-size: 15px; font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--c-gold);
  color: var(--c-navy-deep);
  box-shadow: 0 16px 40px -16px rgba(216,168,90,0.6);
}
.btn-primary:hover {
  background: var(--c-gold-soft);
  transform: translateY(-2px);
}
.btn-ghost {
  background: rgba(255,255,255,0.03);
  color: var(--c-text);
  border-color: var(--c-border);
}
.btn-ghost:hover {
  border-color: var(--c-gold);
  color: var(--c-gold-soft);
}

.hero-visual {
  position: relative;
  aspect-ratio: 4 / 5;
  max-width: 460px;
  width: 100%;
  margin-left: auto;
}
.hero-visual img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: var(--r-xl);
  border: 1px solid var(--c-border);
  box-shadow: 0 40px 100px -30px rgba(0,0,0,0.7);
}

@media (max-width: 900px) {
  .hero { padding: 140px 0 60px; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-visual { max-width: 360px; margin: 0 auto; }
}

/* ===========================
   Pain (운영자 고민)
   =========================== */
.pain { padding: 90px 0; background: var(--c-navy-deep); }
.pain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.pain-card {
  padding: 28px 24px;
  background: linear-gradient(180deg, var(--c-navy-soft), var(--c-navy-deep));
  border: 1px solid var(--c-border-soft);
  border-radius: var(--r-lg);
  transition: all 0.3s ease;
}
.pain-card:hover {
  border-color: var(--c-border);
  transform: translateY(-3px);
}
.pain-card h3 {
  font-size: 18px; font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.pain-card p {
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.65;
}
.pain-card-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: grid; place-items: center;
  margin-bottom: 16px;
  background: rgba(216,168,90,0.10);
  border: 1px solid var(--c-border);
  color: var(--c-gold);
}
.pain-card-icon svg { width: 22px; height: 22px; }

/* ===========================
   Features (해결책)
   =========================== */
.features {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--c-navy-deep), var(--c-navy));
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.feature-card {
  padding: 32px 26px;
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--c-border-soft);
  border-radius: var(--r-lg);
  position: relative;
  transition: all 0.3s ease;
}
.feature-card:hover {
  border-color: var(--c-border);
  background: rgba(255,255,255,0.04);
  box-shadow: var(--shadow-card-hover);
}
.feature-card .feature-num {
  position: absolute; top: 18px; right: 22px;
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--c-gold);
  font-style: italic;
  opacity: 0.7;
}
.feature-card h3 {
  font-size: 19px; font-weight: 700;
  margin: 8px 0 12px;
  letter-spacing: -0.01em;
}
.feature-card p {
  color: var(--c-muted); font-size: 14.5px; line-height: 1.7;
}

/* ===========================
   HowTo (5단계)
   =========================== */
.howto {
  padding: 100px 0;
  background: var(--c-navy-deep);
}
.howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  counter-reset: step;
}
.howto-step {
  padding: 26px 22px;
  background: var(--c-navy-soft);
  border: 1px solid var(--c-border-soft);
  border-radius: var(--r-md);
  position: relative;
  counter-increment: step;
}
.howto-step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-serif);
  font-size: 28px;
  font-style: italic;
  color: var(--c-gold);
  display: block;
  margin-bottom: 12px;
  opacity: 0.85;
}
.howto-step h3 {
  font-size: 16px; font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.howto-step p {
  color: var(--c-muted); font-size: 13.5px; line-height: 1.65;
}

/* ===========================
   FAQ
   =========================== */
.faq {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--c-navy), var(--c-navy-deep));
}
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--c-border-soft);
  border-radius: var(--r-md);
  padding: 22px 26px;
  margin-bottom: 12px;
  background: rgba(255,255,255,0.02);
  transition: all 0.25s ease;
}
.faq-item:hover { border-color: var(--c-border); }
.faq-q {
  font-size: 16px; font-weight: 600;
  color: var(--c-text);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.faq-q::before {
  content: 'Q.'; color: var(--c-gold);
  font-family: var(--font-serif);
  font-style: italic;
  margin-right: 8px;
  font-size: 18px;
}
.faq-a {
  color: var(--c-muted);
  font-size: 14.5px;
  line-height: 1.7;
}

/* ===========================
   CTA + Related
   =========================== */
.cta {
  padding: 100px 0;
  text-align: center;
  background: radial-gradient(ellipse at center, rgba(216,168,90,0.10), transparent 70%), var(--c-navy-deep);
}
.cta h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.cta h2 .accent { color: var(--c-gold); }
.cta p {
  color: var(--c-muted);
  font-size: 16px;
  margin-bottom: 28px;
}

.related {
  padding: 80px 0;
  background: var(--c-navy-deep);
  border-top: 1px solid var(--c-border-soft);
}
.related-title {
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 32px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  max-width: 1000px;
  margin: 0 auto;
}
.related-card {
  padding: 22px 24px;
  background: var(--c-navy-soft);
  border: 1px solid var(--c-border-soft);
  border-radius: var(--r-md);
  display: block;
  transition: all 0.25s ease;
}
.related-card:hover {
  border-color: var(--c-gold);
  transform: translateY(-2px);
}
.related-card h3 {
  font-size: 16px; font-weight: 700; color: var(--c-text);
  margin-bottom: 4px;
}
.related-card p {
  color: var(--c-muted);
  font-size: 13px;
}

/* ===========================
   Footer
   =========================== */
.footer {
  padding: 60px 0 40px;
  background: var(--c-navy-deep);
  border-top: 1px solid var(--c-border-soft);
  color: var(--c-muted);
  text-align: center;
  font-size: 13px;
}
.footer a {
  color: var(--c-muted);
  margin: 0 8px;
  transition: color 0.2s ease;
}
.footer a:hover { color: var(--c-gold-soft); }
.footer .footer-brand {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--c-gold);
  font-size: 15px;
  margin-bottom: 8px;
}

/* ===========================
   Mobile
   =========================== */
@media (max-width: 720px) {
  .container { padding: 0 20px; }
  .hero { padding: 130px 0 50px; }
  .pain, .features, .howto, .faq, .cta { padding: 70px 0; }
}