/* ============================================================
   Silver Sky Photography USA - Main Stylesheet
   ============================================================ */

:root {
  --color-matte: #111111;
  --color-matte-light: #1a1a1a;
  --color-matte-dark: #0a0a0a;
  --color-gold: #C8A34A;
  --color-gold-light: #D4B565;
  --color-gold-dark: #A8862F;
  --color-light-gray: #F5F5F5;
  --color-dark-gray: #2D2D2D;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: 0.5s var(--ease);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body { overflow-x: hidden; }

::selection { background: var(--color-gold); color: var(--color-matte); }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-matte-dark); }
::-webkit-scrollbar-thumb { background: var(--color-dark-gray); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-gold); }

/* ===== Loader ===== */
#page-loader {
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#page-loader.loaded { opacity: 0; visibility: hidden; }
.loader-bar {
  width: 120px; height: 2px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px; overflow: hidden; position: relative;
}
.loader-bar::after {
  content: ''; position: absolute; inset: 0;
  background: var(--color-gold);
  animation: loaderSlide 1.4s ease-in-out infinite;
}
@keyframes loaderSlide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ===== Header ===== */
#site-header { background: transparent; }
#site-header.scrolled {
  background: rgba(17,17,17,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 30px rgba(0,0,0,0.3);
}
.logo-light { display: none; }
#site-header.scrolled .logo-dark { display: none; }
#site-header.scrolled .logo-light { display: block; }

/* ===== Nav Links ===== */
.nav-link {
  position: relative; color: rgba(255,255,255,0.8);
  padding: 4px 0; transition: color var(--transition);
}
.nav-link::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 1px; background: var(--color-gold);
  transition: width var(--transition);
}
.nav-link:hover, .nav-link.active { color: #fff; }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

/* ===== Buttons ===== */
.btn-gold {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px;
  background: var(--color-gold); color: var(--color-matte);
  font-weight: 600; font-size: 13px;
  letter-spacing: 0.1em; text-transform: uppercase;
  border-radius: 999px; border: none; cursor: pointer;
  transition: all var(--transition);
  text-decoration: none; position: relative; overflow: hidden;
}
.btn-gold:hover {
  background: var(--color-gold-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(200,163,74,0.4);
}
.btn-gold::before {
  content: ''; position: absolute; top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.4), transparent);
  transition: left 0.6s ease;
}
.btn-gold:hover::before { left: 100%; }

.btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 31px;
  background: transparent; color: #fff;
  font-weight: 600; font-size: 13px;
  letter-spacing: 0.1em; text-transform: uppercase;
  border-radius: 999px; border: 1px solid rgba(255,255,255,0.3);
  cursor: pointer; transition: all var(--transition);
  text-decoration: none;
}
.btn-outline:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  background: rgba(200,163,74,0.05);
}

/* ===== Scroll Indicator ===== */
.scroll-indicator svg { animation: scrollBounce 2s ease-in-out infinite; }
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ===== Fade In Up ===== */
.fade-in-up {
  opacity: 0; transform: translateY(30px);
  animation: fadeInUp 0.9s var(--ease) forwards;
}
@keyframes fadeInUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Reveal on Scroll ===== */
.reveal {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== Service Cards (light) ===== */
.service-card {
  background: #fff; padding: 32px;
  border-radius: 20px; border: 1px solid rgba(0,0,0,0.06);
  transition: all var(--transition);
  position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 100%; height: 3px; background: var(--color-gold);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.5s var(--ease);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 56px; height: 56px; border-radius: 16px;
  background: rgba(200,163,74,0.1); color: var(--color-gold-dark);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; transition: all var(--transition);
}
.service-card:hover .service-icon {
  background: var(--color-gold); color: #fff;
  transform: rotate(-5deg) scale(1.05);
}

/* ===== Service Cards (dark) ===== */
.service-card-dark {
  background: rgba(255,255,255,0.03);
  padding: 28px; border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.08);
  transition: all var(--transition);
}
.service-card-dark:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(200,163,74,0.3);
  transform: translateY(-4px);
}
.service-icon-dark {
  width: 52px; height: 52px; border-radius: 14px;
  background: rgba(200,163,74,0.12); color: var(--color-gold);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px; transition: all var(--transition);
}
.service-card-dark:hover .service-icon-dark {
  background: var(--color-gold); color: var(--color-matte);
}

/* ===== Footer ===== */
.footer-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.25rem; color: var(--color-gold);
  margin-bottom: 16px; letter-spacing: 0.05em;
}
.footer-link {
  color: rgba(255,255,255,0.6); transition: color var(--transition);
  text-decoration: none; display: inline-block;
}
.footer-link:hover { color: var(--color-gold); }
.social-icon {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.7);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition); text-decoration: none;
}
.social-icon:hover {
  background: var(--color-gold); color: var(--color-matte);
  transform: translateY(-3px);
}

/* ===== Filter Buttons ===== */
.filter-btn {
  padding: 8px 20px; font-size: 12px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  border-radius: 999px; border: 1px solid rgba(255,255,255,0.15);
  background: transparent; color: rgba(255,255,255,0.6);
  cursor: pointer; transition: all var(--transition);
}
.filter-btn:hover { color: #fff; border-color: rgba(255,255,255,0.4); }
.filter-btn.active {
  background: var(--color-gold); color: var(--color-matte);
  border-color: var(--color-gold);
}

/* ===== Glass Card ===== */
.glass-card {
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.1);
}

/* ===== Form Elements ===== */
.form-label {
  display: block; font-size: 12px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(255,255,255,0.5); margin-bottom: 8px;
}
.form-input {
  width: 100%; background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px; padding: 12px 16px;
  color: #fff; font-size: 14px;
  transition: border-color var(--transition), background var(--transition);
}
.form-input:focus {
  outline: none; border-color: var(--color-gold);
  background: rgba(255,255,255,0.08);
}
.form-input::placeholder { color: rgba(255,255,255,0.3); }
select.form-input option { background: var(--color-matte); color: #fff; }

.success-message {
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.3);
  border-radius: 16px; padding: 20px;
}
.error-message {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 16px; padding: 20px;
}

/* ===== Prose Custom ===== */
.prose-custom h2 { margin-top: 2.5rem; }

/* ===== Skill Bar ===== */
.skill-bar { transition: width 1.2s var(--ease); }

/* ===== Back to Top ===== */
#back-to-top.visible { opacity: 1; pointer-events: auto; }

/* ===== Mobile Menu ===== */
#mobile-menu.show { display: block; animation: fadeInUp 0.4s ease forwards; }

/* ===== Lightbox ===== */
#lightbox.show, #video-modal.show {
  display: flex !important;
  animation: fadeIn 0.3s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .btn-gold, .btn-outline { padding: 12px 24px; font-size: 12px; }
}