/* ===== Base ===== */
:root {
  --navy: #0E1B33;
  --navy-2: #182742;
  --gold: #C9A86A;
  --gold-soft: #d8bd87;
  --ivory: #F8F5EF;
  --ivory-2: #efe9dc;
  --charcoal: #2A2A2A;
  --muted: #6b6b6b;
  --line: rgba(14, 27, 51, 0.08);
  --line-strong: rgba(14, 27, 51, 0.16);
  --shadow-soft: 0 12px 40px rgba(14, 27, 51, 0.08);
  --shadow-strong: 0 24px 60px rgba(14, 27, 51, 0.18);
  --serif: 'Noto Serif KR', 'Times New Roman', serif;
  --sans: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Apple SD Gothic Neo', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-weight: 400;
  color: var(--charcoal);
  background: var(--ivory);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ===== Reveal animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding: 18px 0;
  background: rgba(14, 27, 51, 0);
  transition: background 0.4s ease, padding 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background: rgba(248, 245, 239, 0.96);
  backdrop-filter: blur(10px);
  padding: 12px 0;
  box-shadow: 0 4px 24px rgba(14, 27, 51, 0.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--serif);
  color: #fff;
  transition: color 0.3s ease;
}
.site-header.scrolled .brand { color: var(--navy); }
.brand-mark {
  width: 38px; height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.brand-name {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.primary-nav {
  display: flex;
  gap: 36px;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.85);
  transition: color 0.3s ease;
}
.site-header.scrolled .primary-nav { color: var(--charcoal); }
.primary-nav a {
  position: relative;
  padding: 4px 0;
}
.primary-nav a::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width 0.3s ease;
}
.primary-nav a:hover::after { width: 100%; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.06em;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: all 0.25s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--gold);
  color: var(--navy);
  border-color: var(--gold);
}
.btn-primary:hover {
  background: var(--gold-soft);
  border-color: var(--gold-soft);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(201, 168, 106, 0.32);
}
.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
}
.btn-compact {
  padding: 11px 22px;
  font-size: 13px;
}
.btn-block {
  width: 100%;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    linear-gradient(135deg, rgba(14, 27, 51, 0.85) 0%, rgba(14, 27, 51, 0.6) 60%, rgba(14, 27, 51, 0.85) 100%),
    url('https://images.unsplash.com/photo-1545324418-cc1a3fa10c00?auto=format&fit=crop&w=1920&q=80');
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: heroZoom 18s ease-out infinite alternate;
}
@keyframes heroZoom {
  from { transform: scale(1.05); }
  to { transform: scale(1.12); }
}
.hero-overlay {
  position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(14, 27, 51, 0.2) 0%, rgba(14, 27, 51, 0.7) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  padding: 160px 28px 80px;
}
.eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.5em;
  color: var(--gold);
  margin: 0 0 28px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(201, 168, 106, 0.4);
}
.hero-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.18;
  margin: 0 0 28px;
  letter-spacing: -0.01em;
}
.hero-sub {
  display: inline-block;
  font-weight: 400;
  font-size: clamp(20px, 2.4vw, 28px);
  color: var(--gold);
  margin-top: 12px;
  letter-spacing: 0.05em;
}
.hero-copy {
  font-size: clamp(15px, 1.4vw, 18px);
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  margin: 0 0 44px;
  line-height: 1.8;
}
.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 88px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 220px));
  gap: 0;
  margin: 0;
  border-top: 1px solid rgba(255,255,255,0.18);
  padding-top: 36px;
}
.hero-stats > div {
  padding-right: 24px;
  border-right: 1px solid rgba(255,255,255,0.12);
}
.hero-stats > div:last-child { border-right: none; }
.hero-stats dt {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.6);
  margin-bottom: 10px;
}
.hero-stats dd {
  margin: 0;
  font-family: var(--serif);
  font-size: 36px;
  font-weight: 500;
  color: #fff;
}
.hero-stats dd span {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 400;
  color: var(--gold);
  margin-left: 6px;
  letter-spacing: 0.05em;
}
.scroll-indicator {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 40px;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 12px;
  z-index: 3;
}
.scroll-indicator span {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: var(--gold);
  border-radius: 2px;
  animation: scrollHint 1.8s ease-in-out infinite;
}
@keyframes scrollHint {
  0%, 100% { opacity: 0.2; transform: translate(-50%, 0); }
  50% { opacity: 1; transform: translate(-50%, 12px); }
}

/* ===== Sections ===== */
.section {
  padding: 130px 0;
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 72px;
}
.section-eyebrow {
  font-size: 12px;
  letter-spacing: 0.5em;
  color: var(--gold);
  margin: 0 0 18px;
  text-transform: uppercase;
}
.section-eyebrow.light, .section-title.light, .section-lead.light {
  color: rgba(255,255,255,0.9);
}
.section-eyebrow.light { color: var(--gold); }
.section-title {
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 500;
  color: var(--navy);
  margin: 0 0 24px;
  letter-spacing: -0.01em;
}
.section-lead {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.9;
  margin: 0;
}

/* ===== Overview ===== */
.overview {
  background: var(--ivory);
}
.overview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.info-card {
  background: #fff;
  padding: 48px 36px;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
  position: relative;
  z-index: 2;
}
.info-num {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--gold);
  letter-spacing: 0.08em;
}
.info-card h3 {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 14px 0 18px;
  text-transform: uppercase;
}
.info-value {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 500;
  color: var(--navy);
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.info-desc {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.7;
}

/* ===== Plans ===== */
.plans {
  background: #fff;
}
.plan-tabs {
  display: flex;
  justify-content: center;
  gap: 0;
  margin: 0 auto 48px;
  border-bottom: 1px solid var(--line-strong);
  max-width: 820px;
  flex-wrap: wrap;
}
.plan-tab {
  flex: 1 1 auto;
  background: transparent;
  border: none;
  padding: 18px 24px;
  font-size: 15px;
  color: var(--muted);
  letter-spacing: 0.04em;
  position: relative;
  transition: color 0.25s ease;
  font-weight: 500;
}
.plan-tab::after {
  content: "";
  position: absolute;
  bottom: -1px; left: 50%;
  transform: translateX(-50%);
  width: 0; height: 2px;
  background: var(--gold);
  transition: width 0.3s ease;
}
.plan-tab.is-active {
  color: var(--navy);
}
.plan-tab.is-active::after { width: 100%; }
.plan-tab:hover { color: var(--navy); }

.plan-panel {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
  background: var(--ivory);
  padding: 56px;
  margin-bottom: 96px;
}
.plan-visual {
  aspect-ratio: 4 / 3;
  background: #fff;
  border: 1px solid var(--line);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 36px;
  overflow: hidden;
}
.plan-visual svg {
  width: 100%;
  height: 100%;
}
.plan-info h3 {
  font-family: var(--serif);
  font-size: 32px;
  color: var(--navy);
  margin: 0 0 8px;
  font-weight: 500;
}
.plan-info .plan-area {
  font-size: 14px;
  color: var(--gold);
  letter-spacing: 0.2em;
  margin: 0 0 28px;
}
.plan-info p.plan-desc {
  color: var(--muted);
  line-height: 1.85;
  margin: 0 0 32px;
}
.plan-spec {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line-strong);
}
.plan-spec li {
  display: flex;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.plan-spec li span:first-child {
  color: var(--muted);
  letter-spacing: 0.04em;
}
.plan-spec li span:last-child {
  color: var(--navy);
  font-weight: 500;
}

/* ===== Features ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.feature-card {
  padding: 40px 32px;
  background: var(--ivory);
  border: 1px solid transparent;
  transition: all 0.35s ease;
}
.feature-card:hover {
  background: #fff;
  border-color: var(--gold);
  transform: translateY(-6px);
  box-shadow: var(--shadow-soft);
}
.feature-icon {
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  border: 1px solid var(--gold);
  margin-bottom: 24px;
}
.feature-card h3 {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--navy);
  margin: 0 0 12px;
  font-weight: 500;
}
.feature-card p {
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.85;
  margin: 0;
}

/* ===== Location ===== */
.location {
  background: var(--ivory-2);
  background:
    linear-gradient(180deg, var(--ivory) 0%, var(--ivory-2) 100%);
}
.location-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.loc-card {
  background: #fff;
  padding: 40px 28px;
  text-align: left;
  border-top: 3px solid var(--gold);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.loc-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-soft);
}
.loc-icon {
  color: var(--gold);
  margin-bottom: 22px;
}
.loc-card h3 {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--navy);
  margin: 0 0 18px;
  font-weight: 500;
}
.loc-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.loc-card li {
  font-size: 14.5px;
  color: var(--charcoal);
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  position: relative;
  padding-left: 14px;
}
.loc-card li:last-child { border-bottom: none; }
.loc-card li::before {
  content: "";
  position: absolute;
  left: 0; top: 19px;
  width: 4px; height: 4px;
  background: var(--gold);
  border-radius: 50%;
}

/* ===== Inquiry ===== */
.inquiry {
  background: var(--navy);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.inquiry::before {
  content: "";
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  border: 1px solid rgba(201, 168, 106, 0.12);
  border-radius: 50%;
  pointer-events: none;
}
.inquiry::after {
  content: "";
  position: absolute;
  bottom: -150px; left: -150px;
  width: 500px; height: 500px;
  border: 1px solid rgba(201, 168, 106, 0.08);
  border-radius: 50%;
  pointer-events: none;
}
.inquiry-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  position: relative;
  z-index: 1;
}
.inquiry-copy .section-title { color: #fff; }
.inquiry-copy .section-lead { color: rgba(255,255,255,0.78); }
.inquiry-meta {
  list-style: none;
  padding: 0;
  margin: 48px 0 0;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.inquiry-meta li {
  padding: 22px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.inquiry-meta span {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--gold);
  display: block;
  margin-bottom: 8px;
}
.inquiry-meta p {
  margin: 0;
  font-size: 16px;
  color: rgba(255,255,255,0.9);
}

.inquiry-form {
  background: #fff;
  color: var(--charcoal);
  padding: 48px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  box-shadow: var(--shadow-strong);
}
.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.field label {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--navy);
  font-weight: 500;
}
.field input,
.field select,
.field textarea {
  font-family: inherit;
  font-size: 15px;
  padding: 14px 16px;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--charcoal);
  border-radius: 2px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
}
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 168, 106, 0.15);
}
.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: #c84a4a;
  box-shadow: 0 0 0 3px rgba(200, 74, 74, 0.1);
}
.consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
  line-height: 1.6;
}
.consent input {
  margin-top: 3px;
  accent-color: var(--gold);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--navy-2);
  color: rgba(255,255,255,0.7);
  padding: 80px 0 40px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.brand-footer { color: #fff; margin-bottom: 18px; }
.footer-tag {
  font-family: var(--serif);
  color: var(--gold);
  font-size: 16px;
  margin: 0;
  letter-spacing: 0.04em;
}
.site-footer h4 {
  color: #fff;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin: 0 0 18px;
}
.site-footer p { margin: 0; line-height: 1.85; }
.footer-bottom {
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12.5px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom p { margin: 0; }

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(40px);
  background: var(--navy);
  color: #fff;
  padding: 18px 28px;
  border: 1px solid var(--gold);
  border-radius: 2px;
  box-shadow: var(--shadow-strong);
  font-size: 14.5px;
  letter-spacing: 0.02em;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease, transform 0.4s ease;
  z-index: 100;
  max-width: 90vw;
  text-align: center;
}
.toast.is-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast .toast-title {
  display: block;
  color: var(--gold);
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.2em;
  margin-bottom: 4px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .overview-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .location-grid { grid-template-columns: repeat(2, 1fr); }
  .inquiry-wrap { grid-template-columns: 1fr; gap: 56px; }
  .plan-panel { grid-template-columns: 1fr; gap: 36px; padding: 36px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .primary-nav { display: none; }
  .section { padding: 90px 0; }
  .section-head { margin-bottom: 48px; }
  .hero-inner { padding: 130px 20px 60px; }
  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 20px 0;
  }
  .hero-stats > div { border-right: none; padding-right: 0; }
  .hero-stats > div:nth-child(2n) { border-right: none; }
  .hide-sm { display: none; }
  .overview-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .location-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .inquiry-form { padding: 32px 24px; }
  .plan-tab { padding: 14px 12px; font-size: 13px; }
  .btn { padding: 14px 26px; font-size: 14px; }
  .info-card { padding: 36px 28px; }
  .feature-card { padding: 32px 26px; }
}