/* ==========================================================================
   RSON DESIGN STUDIO — GLOBAL LAYOUT, NAVIGATION & FOOTER (EDITORIAL LIGHT)
   ========================================================================== */

/* --------------------------------------------------------------------------
   01. PRIMARY SITE HEADER (MATCHING REFERENCE MOCKUP)
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--border-hairline);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Brand Identity Lockup with Original Website Logo */
.brand-lockup {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.header-logo-img {
  height: 56px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  display: block;
}

.footer-logo-img {
  height: 54px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  display: block;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  color: var(--text-primary);
  line-height: 1;
}

.brand-tagline {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 4px;
}

/* Primary Desktop Navigation */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.4vw, 1.6rem);
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-primary);
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

/* Active navigation indicator matching reference screenshot */
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--bg-dark);
}

.nav-link:hover {
  color: var(--accent-beige);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.btn-initiate {
  padding: 0.75rem 1.4rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  background-color: var(--bg-dark);
  color: #FFFFFF;
  border-radius: 4px;
  font-weight: 600;
}

.btn-initiate:hover {
  background-color: #23252A;
  color: #FFFFFF;
  transform: translateY(-1px);
}

/* 3x3 Grid Dots Icon Button */
.btn-grid-menu {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #FFFFFF;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-primary);
}

.btn-grid-menu:hover {
  border-color: var(--bg-dark);
  background-color: var(--bg-secondary);
}

.grid-dots-icon {
  display: grid;
  grid-template-columns: repeat(3, 3px);
  gap: 3px;
}

.grid-dots-icon span {
  width: 3px;
  height: 3px;
  background-color: currentColor;
  border-radius: 50%;
}

/* --------------------------------------------------------------------------
   02. MOBILE DRAWER & FULLSCREEN MENU
   -------------------------------------------------------------------------- */
.mobile-drawer {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--header-height));
  background-color: #FFFFFF;
  z-index: 999;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-2xl) var(--container-pad);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition-slow), opacity var(--transition-slow), visibility var(--transition-slow);
  overflow-y: auto;
  border-top: 1px solid var(--border-hairline);
}

.mobile-drawer.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.mobile-nav-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
}

.mobile-nav-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-beige);
}

.mobile-nav-link {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  color: var(--text-primary);
  line-height: 1.1;
  transition: color var(--transition-fast);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--accent-beige);
}

.mobile-drawer-footer {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-hairline);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.mobile-contact-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-contact-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.mobile-contact-val {
  font-size: 0.95rem;
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   03. ARCHITECTURAL SECTION STRUCTURE
   -------------------------------------------------------------------------- */
.section {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
  position: relative;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--space-3xl);
  flex-wrap: wrap;
  gap: var(--space-xl);
}

.section-head-left {
  max-width: 680px;
}

.section-desc {
  font-size: var(--text-body);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-top: var(--space-md);
  font-weight: 400;
}

/* --------------------------------------------------------------------------
   04. MASTER ARCHITECTURAL FOOTER (CLEAN EDITORIAL LIGHT)
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-hairline);
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-xl);
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-4xl);
}

.footer-col-studio {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-manifesto {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 380px;
}

.footer-title {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-link {
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent-beige);
}

.footer-contact-item {
  margin-bottom: var(--space-md);
}

.footer-contact-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 3px;
}

.footer-contact-val {
  font-size: 0.88rem;
  color: var(--text-primary);
  line-height: 1.5;
}

.footer-contact-val a:hover {
  color: var(--accent-beige);
}

.footer-socials {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.social-btn {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background-color: #FFFFFF;
  transition: all var(--transition-base);
}

/* Official Social Media Brand Colors */
.social-btn[aria-label*="Instagram" i],
.social-btn[href*="instagram.com"],
.social-btn.social-instagram {
  color: #E4405F;
  border-color: rgba(228, 64, 95, 0.28);
  background-color: rgba(228, 64, 95, 0.05);
}

.social-btn[aria-label*="Instagram" i]:hover,
.social-btn[href*="instagram.com"]:hover,
.social-btn.social-instagram:hover {
  background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%);
  border-color: transparent;
  color: #FFFFFF;
  box-shadow: 0 6px 16px rgba(228, 64, 95, 0.38);
  transform: translateY(-2px);
}

.social-btn[aria-label*="LinkedIn" i],
.social-btn[href*="linkedin.com"],
.social-btn.social-linkedin {
  color: #0A66C2;
  border-color: rgba(10, 102, 194, 0.28);
  background-color: rgba(10, 102, 194, 0.05);
}

.social-btn[aria-label*="LinkedIn" i]:hover,
.social-btn[href*="linkedin.com"]:hover,
.social-btn.social-linkedin:hover {
  background-color: #0A66C2;
  border-color: #0A66C2;
  color: #FFFFFF;
  box-shadow: 0 6px 16px rgba(10, 102, 194, 0.38);
  transform: translateY(-2px);
}

.social-btn[aria-label*="Facebook" i],
.social-btn[href*="facebook.com"],
.social-btn.social-facebook {
  color: #1877F2;
  border-color: rgba(24, 119, 242, 0.28);
  background-color: rgba(24, 119, 242, 0.05);
}

.social-btn[aria-label*="Facebook" i]:hover,
.social-btn[href*="facebook.com"]:hover,
.social-btn.social-facebook:hover {
  background-color: #1877F2;
  border-color: #1877F2;
  color: #FFFFFF;
  box-shadow: 0 6px 16px rgba(24, 119, 242, 0.38);
  transform: translateY(-2px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-hairline);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-lg);
}

/* --------------------------------------------------------------------------
   05. RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
@media (max-width: 1140px) {
  .desktop-nav {
    gap: 0.85rem;
  }
  .nav-link {
    font-size: 0.82rem;
  }
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
  .desktop-nav {
    gap: 0.65rem;
  }
}

@media (max-width: 860px) {
  .desktop-nav {
    display: none;
  }
  .btn-initiate {
    display: none;
  }
  .header-logo-img {
    height: 44px;
  }
  .footer-logo-img {
    height: 44px;
  }
  .brand-name {
    font-size: 1.08rem;
    letter-spacing: 0.16em;
  }
  .brand-tagline {
    font-size: 0.52rem;
  }
  .mobile-drawer {
    padding: var(--space-xl) var(--container-pad);
  }
  .mobile-nav-list {
    gap: 0.85rem;
  }
  .mobile-nav-link {
    font-size: clamp(1.35rem, 5.5vw, 1.85rem);
  }
  .mobile-drawer-footer {
    padding-top: var(--space-md);
    gap: var(--space-xs);
  }
  .mobile-contact-row {
    font-size: 0.82rem;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .footer-brand-desc {
    font-size: 0.86rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xs);
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
    font-size: 0.7rem;
  }
  .footer-bottom-links {
    gap: var(--space-sm);
  }
}

/* ==========================================================================
   04. ARCHITECTURAL FLOATING WHATSAPP BUTTON (BESPOKE STUDIO AESTHETIC)
   ========================================================================== */
.floating-whatsapp-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 995;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px 10px 12px;
  background-color: rgba(14, 14, 14, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(168, 139, 100, 0.42);
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.22), 0 2px 6px rgba(0, 0, 0, 0.12);
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1),
              border-color 0.3s ease,
              box-shadow 0.3s ease,
              background-color 0.3s ease;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.floating-whatsapp-btn:hover,
.floating-whatsapp-btn:focus-visible {
  transform: translateY(-3px) scale(1.02);
  background-color: #000000;
  border-color: var(--accent);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.32), 0 0 20px rgba(168, 139, 100, 0.25);
  outline: none;
}

.floating-wa-icon-wrap {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #25D366;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 10px rgba(37, 211, 102, 0.35);
  transition: transform 0.3s ease;
}

.floating-whatsapp-btn:hover .floating-wa-icon-wrap {
  transform: scale(1.06);
}

.floating-wa-svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.floating-wa-dot {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 9px;
  height: 9px;
  background-color: #25D366;
  border: 2px solid #0E0E0E;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  animation: waPulseDot 2s infinite;
}

@keyframes waPulseDot {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}

.floating-wa-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.floating-wa-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: #FFFFFF;
  line-height: 1.25;
  text-transform: uppercase;
}

.floating-wa-status {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  color: var(--accent);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

@media (max-width: 600px) {
  .floating-whatsapp-btn {
    bottom: 20px;
    right: 20px;
    padding: 8px 14px 8px 10px;
    gap: 10px;
  }
  .floating-wa-icon-wrap {
    width: 32px;
    height: 32px;
  }
  .floating-wa-svg {
    width: 18px;
    height: 18px;
  }
  .floating-wa-status {
    display: none;
  }
  .floating-wa-label {
    font-size: 0.68rem;
  }
}

@media (max-width: 380px) {
  .floating-whatsapp-btn {
    padding: 8px;
    border-radius: 50%;
  }
  .floating-wa-text {
    display: none;
  }
}