/* ============================================================
   Seven Three Sovereign Real Estate LLC
   Design: Emerald Gateway — Dark luxury with gold accents
   Fonts: Cormorant Garamond (display) + Noto Sans JP (body)
   ============================================================ */

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

:root {
  --gold: #C9A84C;
  --gold-light: #E8C96A;
  --dark: #0A0E14;
  --dark-2: #111720;
  --dark-3: #1A2233;
  --dark-4: #243044;
  --text: #E8E4DC;
  --text-muted: #9AA3B0;
  --border: rgba(201,168,76,0.2);
  --radius: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans JP', sans-serif;
  background: var(--dark);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: 'Cormorant Garamond', 'Noto Serif JP', serif;
  line-height: 1.2;
}

.section-label {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  color: #fff;
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.8;
}

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section { padding: 5rem 0; }

/* ---- Buttons ---- */
.btn-gold {
  display: inline-block;
  background: var(--gold);
  color: #0A0E14;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  font-family: 'Noto Sans JP', sans-serif;
}
.btn-gold:hover { background: var(--gold-light); transform: translateY(-1px); }

.btn-outline {
  display: inline-block;
  background: transparent;
  color: #fff;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.35);
  cursor: pointer;
  transition: background 0.2s;
  font-family: 'Noto Sans JP', sans-serif;
}
.btn-outline:hover { background: rgba(255,255,255,0.08); }

/* ---- Navigation ---- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10,14,20,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: 64px;
  display: flex;
  align-items: center;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.nav-logo img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  filter: invert(1) brightness(2);
}
.nav-logo-text { line-height: 1.2; }
.nav-logo-text .name {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.03em;
}
.nav-logo-text .sub {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.nav-links a:hover { color: #fff; }

.nav-cta { margin-left: 1rem; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: var(--dark-2);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem;
  z-index: 999;
  flex-direction: column;
  gap: 1rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 1rem;
  color: var(--text-muted);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1512453979798-5ea266f8880c?w=1600&q=80');
  background-size: cover;
  background-position: center;
  filter: brightness(0.35);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,14,20,0.7) 0%, rgba(10,14,20,0.3) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  padding: 4rem 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(201,168,76,0.15);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 1rem;
  font-size: 0.78rem;
  color: var(--gold);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  color: #fff;
  margin-bottom: 0.5rem;
  line-height: 1.15;
}
.hero h1 .accent { color: var(--gold); }

.hero-desc {
  color: rgba(255,255,255,0.75);
  font-size: 1rem;
  margin: 1.25rem 0 2rem;
  line-height: 1.8;
}

.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ---- KPI Strip ---- */
.kpi-strip {
  background: var(--dark-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 2.5rem 0;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  text-align: center;
}

.kpi-item { padding: 1rem; }
.kpi-value {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.4rem;
  color: var(--gold);
  font-weight: 700;
  line-height: 1;
}
.kpi-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

/* ---- Services ---- */
.services { background: var(--dark-2); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.service-card {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color 0.2s, transform 0.2s;
}
.service-card:hover {
  border-color: var(--gold);
  transform: translateY(-3px);
}

.service-icon {
  width: 48px; height: 48px;
  background: rgba(201,168,76,0.12);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem;
  font-size: 1.4rem;
}

.service-category {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.4rem;
}

.service-card h3 {
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 0.6rem;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
}

.service-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.service-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.service-tag {
  font-size: 0.7rem;
  background: rgba(201,168,76,0.1);
  color: var(--gold);
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.82rem;
  color: var(--gold);
  margin-top: 0.75rem;
  transition: gap 0.2s;
}
.service-link:hover { gap: 0.6rem; }

/* ---- Market Data ---- */
.market { background: var(--dark); }

.chart-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.chart-tab {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'Noto Sans JP', sans-serif;
}
.chart-tab.active {
  background: var(--gold);
  color: var(--dark);
  border-color: var(--gold);
  font-weight: 700;
}

.chart-container {
  background: var(--dark-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  min-height: 360px;
}

.chart-panel { display: none; }
.chart-panel.active { display: block; }

/* ---- Investment Merits ---- */
.merits { background: var(--dark-2); }

.merits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.merit-card {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.merit-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.merit-card h3 {
  font-size: 1rem;
  color: #fff;
  margin-bottom: 0.5rem;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
}

.merit-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ---- Area Guide ---- */
.areas { background: var(--dark); }

.area-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.area-card {
  background: var(--dark-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s;
}
.area-card:hover { transform: translateY(-3px); border-color: var(--gold); }

.area-card-header {
  padding: 1.25rem 1.5rem;
  background: var(--dark-3);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.area-name { font-size: 1rem; font-weight: 700; color: #fff; }
.area-yield {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gold);
  font-family: 'Cormorant Garamond', serif;
}

.area-card-body { padding: 1.25rem 1.5rem; }
.area-type {
  font-size: 0.75rem;
  color: var(--gold);
  letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
}
.area-desc {
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 0.75rem;
}
.area-price {
  font-size: 0.78rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 0.75rem;
}

/* ---- Steps ---- */
.steps { background: var(--dark-2); }

.steps-list {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step-item {
  display: flex;
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
}
.step-item:last-child { border-bottom: none; }

.step-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3rem;
  color: var(--gold);
  opacity: 0.4;
  line-height: 1;
  min-width: 60px;
  font-weight: 700;
}

.step-content h3 {
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 0.4rem;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
}
.step-content p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ---- CTA Banner ---- */
.cta-banner {
  background: linear-gradient(135deg, var(--dark-3) 0%, var(--dark-4) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
  padding: 5rem 0;
}

.cta-banner h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  color: #fff;
  margin-bottom: 1rem;
}

.cta-banner p {
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ---- Footer ---- */
footer {
  background: var(--dark-2);
  border-top: 1px solid var(--border);
  padding: 3rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.footer-brand .nav-logo { margin-bottom: 1rem; }
.footer-brand p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.footer-contact-item span:first-child { color: var(--gold); min-width: 16px; }

.footer-col h4 {
  font-size: 0.85rem;
  color: #fff;
  font-weight: 700;
  margin-bottom: 1rem;
  font-family: 'Noto Sans JP', sans-serif;
}
.footer-col ul li { margin-bottom: 0.5rem; }
.footer-col ul li a {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: var(--gold); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.footer-bottom p { font-size: 0.78rem; color: var(--text-muted); }
.footer-license {
  font-size: 0.75rem;
  color: var(--gold);
  opacity: 0.7;
}

/* ---- Page Header (inner pages) ---- */
.page-header {
  background: linear-gradient(135deg, var(--dark-2) 0%, var(--dark-3) 100%);
  border-bottom: 1px solid var(--border);
  padding: 7rem 0 3.5rem;
  text-align: center;
}
.page-header h1 { font-size: clamp(2rem, 4vw, 3rem); color: #fff; margin-bottom: 0.75rem; }
.page-header p { color: var(--text-muted); max-width: 560px; margin: 0 auto; }

/* ---- Comparison Table ---- */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 2rem;
  font-size: 0.88rem;
}
.compare-table th {
  background: var(--dark-3);
  color: var(--gold);
  padding: 1rem;
  text-align: center;
  border: 1px solid var(--border);
  font-family: 'Noto Sans JP', sans-serif;
}
.compare-table td {
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  color: var(--text-muted);
  text-align: center;
  vertical-align: middle;
}
.compare-table tr:nth-child(even) td { background: rgba(255,255,255,0.02); }
.compare-table td:first-child { text-align: left; color: var(--text); font-weight: 500; }
.check { color: #4ade80; font-size: 1.1rem; }
.cross { color: #f87171; font-size: 1.1rem; }
.partial { color: var(--gold); }

/* ---- Freezone Cards ---- */
.freezone-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.freezone-card {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color 0.2s, transform 0.2s;
}
.freezone-card:hover { border-color: var(--gold); transform: translateY(-2px); }

.freezone-badge {
  display: inline-block;
  font-size: 0.7rem;
  background: rgba(201,168,76,0.12);
  color: var(--gold);
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}

.freezone-card h3 {
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 0.25rem;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
}
.freezone-card .freezone-full { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.75rem; }
.freezone-card p { font-size: 0.83rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 1rem; }

.freezone-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}
.freezone-stat { font-size: 0.78rem; }
.freezone-stat .stat-label { color: var(--text-muted); }
.freezone-stat .stat-value { color: var(--gold); font-weight: 700; }

/* ---- FAQ Accordion ---- */
.faq-list { margin-top: 2.5rem; }

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background: var(--dark-3);
  border: none;
  color: #fff;
  text-align: left;
  padding: 1.25rem 1.5rem;
  font-size: 0.95rem;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s;
}
.faq-question:hover { background: var(--dark-4); }
.faq-question .faq-icon {
  font-size: 1.2rem;
  color: var(--gold);
  transition: transform 0.3s;
  flex-shrink: 0;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  background: var(--dark-2);
}
.faq-answer-inner {
  padding: 1.25rem 1.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.8;
}
.faq-item.open .faq-answer { max-height: 400px; }

/* ---- Contact Form ---- */
.contact-section { background: var(--dark); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 4rem;
  margin-top: 3rem;
}

.contact-info h3 {
  font-size: 1.2rem;
  color: #fff;
  margin-bottom: 1.5rem;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
}

.contact-info-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  align-items: flex-start;
}
.contact-info-icon {
  width: 40px; height: 40px;
  background: rgba(201,168,76,0.12);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-info-text .label { font-size: 0.75rem; color: var(--gold); margin-bottom: 0.2rem; }
.contact-info-text .value { font-size: 0.88rem; color: var(--text); line-height: 1.5; }

.form-card {
  background: var(--dark-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
}

.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}
.form-group label .required { color: var(--gold); margin-left: 0.25rem; }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 0.75rem 1rem;
  font-size: 0.88rem;
  font-family: 'Noto Sans JP', sans-serif;
  transition: border-color 0.2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--gold); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select option { background: var(--dark-3); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.form-submit { width: 100%; padding: 1rem; font-size: 1rem; margin-top: 0.5rem; }

.form-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.75rem;
}

.form-success {
  display: none;
  text-align: center;
  padding: 2rem;
}
.form-success .success-icon { font-size: 3rem; margin-bottom: 1rem; }
.form-success h3 { color: #4ade80; font-size: 1.3rem; margin-bottom: 0.5rem; }
.form-success p { color: var(--text-muted); font-size: 0.88rem; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .compare-table { font-size: 0.78rem; }
}

@media (max-width: 600px) {
  section { padding: 3.5rem 0; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .form-row { grid-template-columns: 1fr; }
  .step-item { flex-direction: column; gap: 0.75rem; }
  .step-num { font-size: 2rem; }
  .hero-buttons { flex-direction: column; }
  .cta-buttons { flex-direction: column; align-items: center; }
}