/* === GLOBAL === */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: #d4a017;
  color: #0f2440;
}

/* === HEADER === */
#header {
  background: transparent;
  transition: background 0.35s ease, box-shadow 0.35s ease, padding 0.35s ease;
}

#header.scrolled {
  background: rgba(15, 36, 64, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
  padding-top: 0;
  padding-bottom: 0;
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #d4a017;
  transition: width 0.3s ease;
}

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

/* === MOBILE MENU === */
.mobile-link {
  position: relative;
  display: block;
}

#mobile-menu.show {
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === BUTTONS === */
.btn-gold {
  background: linear-gradient(135deg, #d4a017 0%, #e8b82e 100%);
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(212, 160, 23, 0.3);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(212, 160, 23, 0.4);
}

/* === SERVICE CARDS === */
.service-card {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.service-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === PROPERTY CARDS === */
.property-card {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.property-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === SCROLL ANIMATIONS === */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === SCROLL TO TOP === */
#scroll-top.visible {
  opacity: 1;
  pointer-events: auto;
}

#scroll-top:hover {
  transform: translateY(-3px);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  html {
    scroll-padding-top: 70px;
  }
}

/* === FORM FOCUS STATES === */
input:focus, textarea:focus, select:focus {
  outline: none;
}

/* === IMAGE LOADING === */
img {
  display: block;
  max-width: 100%;
}