/* ── Base & Utilities ── */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  overflow-x: hidden;
}

::selection {
  background: rgba(200, 150, 12, 0.3);
  color: #F5F0EB;
}

/* ── Animations ── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-up {
  animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── Navbar ── */
#navbar {
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#navbar.scrolled {
  background: rgba(26, 15, 36, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(200, 150, 12, 0.1);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: #C8960C;
  transition: width 0.3s ease;
}

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

/* ── Mobile Menu ── */
#mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

#mobile-menu.closed {
  opacity: 0;
  pointer-events: none;
}

.menu-line {
  display: block;
}

.menu-toggle.active .menu-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active .menu-line:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active .menu-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
  width: 1.5rem;
}

/* ── Service Cards ── */
.service-card {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease, box-shadow 0.4s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(200, 150, 12, 0.15);
}

/* ── Process Steps ── */
.process-step {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.process-step:hover {
  transform: translateY(-4px);
}

/* ── Project Cards ── */
.project-card {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}

/* ── Buttons ── */
button, a[type="submit"] {
  position: relative;
  overflow: hidden;
}

button::before, a[type="submit"]::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

button:hover::before, a[type="submit"]::before {
  opacity: 1;
}

/* ── Form Elements ── */
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23C8960C' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
}

select option {
  background: #2D1B3D;
  color: #F5F0EB;
}

/* ── Custom Scrollbar ── */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #1A0F24;
}

::-webkit-scrollbar-thumb {
  background: #3D2452;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #5C3A6E;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .font-display {
    line-height: 1.1;
  }

  #hero h1 {
    font-size: 2.75rem;
  }

  @media (min-width: 768px) {
    #hero h1 {
      font-size: 3.5rem;
    }
  }

  @media (min-width: 1024px) {
    #hero h1 {
      font-size: 4.5rem;
    }
  }

  @media (min-width: 1280px) {
    #hero h1 {
      font-size: 5rem;
    }
  }
}

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}