/* ==========================================================================
   SWEET HOME REAL ESTATE — GLOBAL STYLES & LAYOUT (styles.css)
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  line-height: 1.65;
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  filter: contrast(1.05) saturate(1.02);
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s var(--ease-expo-out);
}

ul, ol {
  list-style: none;
}

/* -------------------------------------------------------------------------
   2. Layout Containers
   ------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-wide { max-width: var(--container-wide); }
.container-narrow { max-width: var(--container-narrow); }

.section {
  padding-top: var(--section-padding);
  padding-bottom: var(--section-padding);
  position: relative;
}

.section-sm {
  padding-top: var(--section-padding-sm);
  padding-bottom: var(--section-padding-sm);
}

/* -------------------------------------------------------------------------
   3. Typography Utilities
   ------------------------------------------------------------------------- */
.label-overline {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
  display: inline-block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(30px, 3.5vw, 48px);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.section-title-dark { color: var(--color-text-inverse); }

.section-subtitle {
  font-size: clamp(16px, 1.2vw, 18px);
  color: var(--color-text-secondary);
  max-width: 640px;
  margin-bottom: var(--space-2xl);
  line-height: 1.6;
}

.section-subtitle-dark { color: var(--color-dark-muted); }

/* -------------------------------------------------------------------------
   4. Buttons & Interactive Elements (Metallic Gold Gradient)
   ------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  transition: all 0.35s var(--ease-expo-out);
  white-space: nowrap;
  user-select: none;
}

.btn-gold {
  background: var(--gradient-gold);
  color: var(--color-dark);
  box-shadow: var(--shadow-gold);
}

.btn-gold:hover {
  box-shadow: var(--shadow-gold-hover);
  filter: brightness(1.08);
}

.site-header .btn-gold:hover {
  transform: none;
}

.btn-emerald {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-md);
}

.btn-emerald:hover {
  background-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline-dark {
  background-color: transparent;
  color: var(--color-text-primary);
  border: 1.5px solid var(--color-text-primary);
}

.btn-outline-dark:hover {
  background-color: var(--color-text-primary);
  color: var(--color-text-inverse);
  transform: translateY(-2px);
}

.btn-outline-glass {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--color-text-inverse);
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(12px);
}

.btn-outline-glass:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.7);
  transform: translateY(-2px);
}

/* -------------------------------------------------------------------------
   5. Exponential Silk Scroll Reveal Animation
   ------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity var(--duration-reveal) var(--ease-expo-out),
              transform var(--duration-reveal) var(--ease-expo-out);
  will-change: opacity, transform;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* -------------------------------------------------------------------------
   6. Universal Clean White Navigation Header
   ------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 90px;
  display: flex;
  align-items: center;
  background-color: #FFFFFF;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
  border-bottom: 1px solid var(--color-surface);
  box-sizing: border-box;
}

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

.brand-original-logo {
  height: 60px;
  width: auto;
  object-fit: contain;
  display: block;
}

.brand-original-logo-footer {
  height: 60px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.05);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-link {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #1A1A1A;
  position: relative;
  padding: 8px 0;
  display: inline-block;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width 0.25s ease-out;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.nav-dropdown-menu {
  opacity: 0;
  visibility: hidden;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #FFFFFF;
  min-width: 220px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.14);
  border-radius: var(--radius-lg);
  padding: 8px 0;
  z-index: 1100;
  border: 1px solid var(--color-surface);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  pointer-events: none;
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.nav-dropdown-menu a {
  display: block;
  padding: 10px 20px;
  color: #1A1A1A;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: left;
  white-space: nowrap;
}

.nav-dropdown-menu a:hover {
  background: var(--color-bg-subtle);
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: #5A5A5A;
}

.lang-switch span.active {
  color: var(--color-primary);
  font-weight: 700;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  height: 20px;
  justify-content: center;
}

.mobile-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: #111111;
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* -------------------------------------------------------------------------
   7. Footer (Dark Obsidian Layout)
   ------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-dark);
  color: var(--color-dark-text);
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-2xl);
  border-top: 1px solid var(--color-dark-surface);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.2fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand p {
  color: var(--color-dark-muted);
  font-size: 14px;
  margin-top: var(--space-md);
  max-width: 300px;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

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

.footer-col a {
  color: var(--color-dark-muted);
  font-size: 14px;
}

.footer-col a:hover {
  color: var(--color-accent);
  transform: translateX(4px);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-dark-surface);
  font-size: 13px;
  color: var(--color-dark-muted);
}

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

.footer-socials a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-dark-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-dark-muted);
  transition: all 0.25s ease;
}

.footer-socials a:hover {
  color: var(--color-dark);
  background: var(--gradient-gold);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

/* -------------------------------------------------------------------------
   8. Responsive Modifications
   ------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .mobile-toggle { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--space-md); text-align: center; }
}