/* ============================================================
   244 PARK AVENUE — NORTH CALDWELL
   Global Stylesheet
   Brand Palette: Iron #1D1F20 | Stone #A29F97 | Limestone #D8D6CF
                  Ivory #F6F4EF | Cypress #6F7F6D | Slate #5B6670
   ============================================================ */

/* ── CSS Custom Properties ── */
:root {
  /* Brand Colors */
  --color-iron:       #1D1F20;
  --color-stone:      #A29F97;
  --color-limestone:  #D8D6CF;
  --color-ivory:      #F6F4EF;
  --color-cypress:    #6F7F6D;
  --color-slate:      #5B6670;

  /* Semantic Aliases */
  --color-dark:         var(--color-iron);
  --color-surface:      var(--color-ivory);
  --color-text-muted:   var(--color-stone);
  --color-border:       var(--color-limestone);
  --color-accent:       var(--color-cypress);

  /* Typography */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Jost', system-ui, sans-serif;

  /* Type Scale */
  --text-xs:   0.72rem;
  --text-sm:   0.85rem;
  --text-base: 1rem;
  --text-lg:   1.15rem;
  --text-xl:   1.35rem;
  --text-2xl:  1.75rem;
  --text-3xl:  2.25rem;
  --text-4xl:  3rem;
  --text-5xl:  4rem;

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --max-w:      1280px;
  --header-h:   80px;
  --transition: 350ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; scroll-padding-top: 80px; }
body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--color-dark);
  background: var(--color-surface);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { background: none; border: none; cursor: pointer; font-family: inherit; }
ul { list-style: none; }

/* ── Header ── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  background: var(--color-ivory);
  box-shadow: 0 1px 0 var(--color-limestone);
}
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 100%;
  padding: 0 var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.logo { display: flex; align-items: center; }
.logo-svg-wrap { display: block; }

/* Nav */
.site-nav { display: flex; align-items: center; gap: var(--space-8); }
.nav-link {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-dark);
  position: relative;
  padding-bottom: 2px;
  transition: color var(--transition);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--color-cypress);
  transition: width var(--transition);
}
.nav-link:hover::after,
.nav-link.active::after { width: 100%; }
.nav-link.active { color: var(--color-cypress); }

/* Header on hero (light nav over dark/image) */
.header-hero .site-nav .nav-link { color: #fff; }
.header-hero .site-nav .nav-link.active { color: var(--color-limestone); }
.header-hero .site-nav .nav-link::after { background: var(--color-limestone); }
.header-hero.scrolled .site-nav .nav-link { color: var(--color-dark); }
.header-hero.scrolled .site-nav .nav-link.active { color: var(--color-cypress); }
.header-hero.scrolled .site-nav .nav-link::after { background: var(--color-cypress); }

/* Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  color: var(--color-dark);
}
.nav-toggle span {
  display: block;
  height: 1px;
  background: currentColor;
  transition: transform var(--transition), opacity var(--transition);
}
.header-hero .nav-toggle { color: #fff; }
.header-hero.scrolled .nav-toggle { color: var(--color-dark); }

/* Mobile nav overlay */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--color-iron);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
}
.mobile-nav.open { display: flex; }
.mobile-nav .nav-link {
  color: var(--color-ivory);
  font-size: var(--text-lg);
  letter-spacing: 0.18em;
}
.mobile-nav .nav-link::after { background: var(--color-limestone); }

/* ── Section Utility ── */
.section-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-stone);
  display: block;
  margin-bottom: var(--space-4);
}
.section-label--light { color: var(--color-limestone); }
.section-label--accent { color: var(--color-cypress); }

/* ── Reveal Animation ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Text CTA ── */
.text-cta {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-dark);
  border-bottom: 1px solid var(--color-dark);
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
  display: inline-block;
}
.text-cta:hover { color: var(--color-cypress); border-color: var(--color-cypress); }
.text-cta--light { color: var(--color-ivory); border-color: var(--color-ivory); }
.text-cta--light:hover { color: var(--color-limestone); border-color: var(--color-limestone); }

/* ── Divider ── */
.divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-4) 0;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-limestone);
}

/* ── Page Hero (inner pages) ── */
.page-hero {
  background: var(--color-iron);
  padding: clamp(4rem, 12vw, 8rem) var(--space-8) clamp(3rem, 8vw, 5rem);
}
.page-hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  text-align: center;
}
.page-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 300;
  color: var(--color-ivory);
  letter-spacing: 0.02em;
  margin-top: var(--space-3);
}

/* ── Room Sections ── */
.room-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 520px;
}
.room-section--reverse { direction: rtl; }
.room-section--reverse > * { direction: ltr; }

.room-images { position: relative; background: var(--color-limestone); }
.room-content {
  padding: clamp(3rem, 6vw, 5rem) clamp(2rem, 5vw, 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.room-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--color-dark);
  margin-bottom: var(--space-6);
}
.room-body {
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-stone);
  max-width: 48ch;
}
.room-specs {
  margin-top: var(--space-8);
  border-top: 1px solid var(--color-limestone);
}
.room-specs li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-limestone);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
}
.room-specs li span:first-child { color: var(--color-stone); text-transform: uppercase; }
.room-specs li span:last-child { font-weight: 400; color: var(--color-dark); }

/* ── Room Slider ── */
.room-slider { position: relative; width: 100%; }
.room-slider-track { display: flex; transition: transform 600ms cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.room-slide { flex: 0 0 100%; }
.room-slide img { width: 100%; height: auto; display: block; }

.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px; height: 44px;
  background: oklch(0.1 0 0 / 0.45);
  border: 1px solid oklch(1 0 0 / 0.2);
  color: #fff;
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
  transition: background var(--transition);
  z-index: 2;
}
.slider-btn:hover { background: oklch(0.1 0 0 / 0.7); }
.slider-prev { left: var(--space-4); }
.slider-next { right: var(--space-4); }
.slider-dots {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-2);
  z-index: 2;
}
.dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: oklch(1 0 0 / 0.4);
  transition: background var(--transition);
}
.dot.active { background: #fff; }

/* ── Features Grid ── */
.features-grid {
  background: var(--color-iron);
  padding: clamp(4rem, 8vw, 6rem) var(--space-8);
}
.features-grid-inner { max-width: var(--max-w); margin: 0 auto; }
.features-grid-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  color: var(--color-ivory);
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.features-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1px;
  background: oklch(1 0 0 / 0.08);
}
.feature-card {
  padding: var(--space-8) var(--space-6);
  background: oklch(0.12 0 0 / 1);
  transition: background var(--transition);
}
.feature-card:hover { background: oklch(0.15 0 0 / 1); }
.feature-card h3 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-limestone);
  margin-bottom: var(--space-3);
}
.feature-card p {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: oklch(0.75 0 0 / 1);
}

/* ── Inquire CTA Band ── */
.inquire-cta {
  background: var(--color-ivory);
  padding: clamp(3.5rem, 7vw, 5rem) var(--space-8);
  text-align: center;
  border-top: 1px solid var(--color-limestone);
}
.inquire-cta-inner { max-width: 560px; margin: 0 auto; }
.inquire-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 300;
  color: var(--color-dark);
  margin-bottom: var(--space-4);
}
.inquire-cta p {
  font-size: var(--text-sm);
  color: var(--color-stone);
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

/* ── Form ── */
.form-group { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-5); }
.form-group label {
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-stone);
}
.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 300;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-limestone);
  background: var(--color-ivory);
  color: var(--color-dark);
  outline: none;
  transition: border-color var(--transition);
  -webkit-appearance: none;
  border-radius: 0;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--color-stone); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-submit {
  width: 100%;
  padding: var(--space-4) var(--space-8);
  background: var(--color-iron);
  color: var(--color-ivory);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid var(--color-iron);
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
}
.form-submit:hover { background: var(--color-cypress); border-color: var(--color-cypress); }

/* ── Footer ── */
.site-footer { background: var(--color-iron); }
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 5rem) var(--space-8);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}
.footer-address {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-stone);
  line-height: 1.8;
  margin-top: var(--space-4);
}
.footer-agents { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.footer-agent { display: flex; flex-direction: column; gap: var(--space-3); align-items: center; text-align: center; }
.agent-headshot {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  overflow: hidden;
  background: oklch(0.25 0 0 / 1);
  flex-shrink: 0;
}
.agent-headshot img {
  width: 110px;
  height: 110px;
  object-fit: cover;
  object-position: center top;
  display: block;
  border-radius: 50%;
}
.agent-name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 300;
  color: var(--color-ivory);
}
.agent-title {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-stone);
}
.agent-contact {
  font-size: var(--text-xs);
  color: var(--color-limestone);
  letter-spacing: 0.04em;
  transition: color var(--transition);
  display: block;
}
.agent-contact:hover { color: var(--color-ivory); }

/* ── Standalone Agents Section ── */
.agents-section {
  background: var(--color-ivory);
  padding: clamp(3rem, 6vw, 5rem) var(--space-8);
  border-top: 1px solid var(--color-limestone);
}
.agents-section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.agents-section-inner .section-label {
  margin-bottom: var(--space-6);
  display: block;
}
.agents-section-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 700px) {
  .agents-section-grid { grid-template-columns: 1fr; gap: var(--space-8); }
}
/* Override agent text colors for light background context */
.agents-section .agent-name { color: var(--color-dark); }
.agents-section .agent-title { color: var(--color-dark); }
.agents-section .agent-contact { color: var(--color-dark); }
.agents-section .agent-contact:hover { color: var(--color-dark); }

/* Footer cobrand bar */
.footer-cobrand {
  border-top: 1px solid oklch(1 0 0 / 0.1);
  padding: var(--space-6) var(--space-8) var(--space-8);
}
.footer-cobrand-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.footer-cobrand-label {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-stone);
}
.footer-cobrand-logo-img { width: 320px; height: auto; opacity: 1; transition: opacity 0.2s; display: block; overflow: visible; }
.footer-cobrand-logos { overflow: visible; line-height: 0; }
.footer-cobrand-logo-img:hover { opacity: 0.85; }
.footer-eho {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-stone);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  line-height: 1.4;
}
.footer-office-line {
  max-width: var(--max-w);
  margin: var(--space-3) auto 0;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-stone);
  letter-spacing: 0.06em;
}
.footer-office-line a { color: var(--color-limestone); transition: color var(--transition); }
.footer-office-line a:hover { color: var(--color-ivory); }
.footer-office-sep { color: oklch(1 0 0 / 0.2); }

/* Disclosure */
.footer-serhant-disclosure {
  border-top: 1px solid oklch(1 0 0 / 0.08);
  padding: var(--space-5) var(--space-8);
}
.footer-disclosure-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.footer-serhant-disclosure p {
  font-size: 0.65rem;
  color: oklch(0.5 0 0 / 1);
  line-height: 1.65;
  letter-spacing: 0.03em;
  margin-bottom: var(--space-2);
}
.footer-disclaimer-copy { color: oklch(0.42 0 0 / 1) !important; }

/* ── Accordion ── */
.accordion { border-top: 1px solid var(--color-limestone); }
.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-5) 0;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-dark);
  border-bottom: 1px solid var(--color-limestone);
  cursor: pointer;
  transition: color var(--transition);
}
.accordion-trigger:hover { color: var(--color-cypress); }
.accordion-trigger[aria-expanded="true"] .accordion-icon { transform: rotate(45deg); }
.accordion-icon {
  width: 18px; height: 18px;
  position: relative;
  flex-shrink: 0;
  transition: transform var(--transition);
}
.accordion-icon::before,
.accordion-icon::after {
  content: '';
  position: absolute;
  background: currentColor;
}
.accordion-icon::before { width: 12px; height: 1px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.accordion-icon::after { width: 1px; height: 12px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.accordion-panel {
  overflow: hidden;
  max-height: 0;
  transition: max-height 400ms ease;
}
.accordion-panel-inner {
  padding: var(--space-5) 0 var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-stone);
  line-height: 1.8;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .room-section { grid-template-columns: 1fr; }
  .room-section--reverse { direction: ltr; }
  .room-images { min-height: 360px; }
  .room-slider { min-height: 360px; }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .site-nav { display: none; }
  .nav-toggle { display: flex; }
  .footer-agents { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer-cobrand-inner { flex-direction: column; align-items: flex-start; gap: var(--space-5); }
}

@media (max-width: 480px) {
  .features-cards { grid-template-columns: 1fr; }
}