/* ============================================
   NT ELEGANZ — ANIMATIONS
   ============================================ */

/* ── Keyframes ── */

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}

@keyframes slideOutRight {
  from { transform: translateX(0); }
  to   { transform: translateX(100%); }
}

@keyframes slideInLeft {
  from { transform: translateX(-100%); }
  to   { transform: translateX(0); }
}

@keyframes slideOutLeft {
  from { transform: translateX(0); }
  to   { transform: translateX(-100%); }
}

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes pulse-gold {
  0%, 100% { box-shadow: 0 0 0 0 rgba(27, 58, 107, 0.3); }
  50%       { box-shadow: 0 0 0 10px rgba(27, 58, 107, 0); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.6; }
  50%       { opacity: 1; }
}

@keyframes borderFlicker {
  0%, 100% { border-color: rgba(27,58,107,0.15); }
  50%       { border-color: rgba(27,58,107,0.4); }
}

/* ── Utility Animation Classes ── */

.anim-fade-in { animation: fadeIn var(--transition-slow) both; }
.anim-fade-in-up { animation: fadeInUp 0.7s both; }
.anim-fade-in-down { animation: fadeInDown 0.5s both; }
.anim-scale-in { animation: scaleIn 0.4s both; }

/* Delay helpers */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }
.delay-800 { animation-delay: 0.8s; }

/* ── Loader ── */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.loader-logo {
  font-family: var(--font-serif);
  font-size: var(--text-3xl);
  font-weight: var(--weight-light);
  letter-spacing: var(--tracking-widest);
  color: var(--gold);
  animation: glowPulse 1.5s ease-in-out infinite;
}

.loader-bar {
  width: 120px;
  height: 1px;
  background: var(--border);
  position: relative;
  overflow: hidden;
}

.loader-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  animation: shimmer 1.2s infinite;
  background-size: 200% 100%;
}

/* ── Scroll Reveal (used by GSAP/AOS fallback) ── */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ── Gold shimmer text ── */
.text-shimmer {
  background: linear-gradient(
    90deg,
    var(--gold-dark) 0%,
    var(--gold-light) 30%,
    var(--gold) 50%,
    var(--gold-light) 70%,
    var(--gold-dark) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s linear infinite;
}

/* ── Hover Glow Button ── */
.btn-glow-hover {
  position: relative;
  overflow: hidden;
}
.btn-glow-hover::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(27,58,107,0.12) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}
.btn-glow-hover:hover::before {
  opacity: 1;
}

/* ── Overlay backdrop ── */
.overlay-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 28, 46, 0.45);
  backdrop-filter: blur(4px);
  z-index: var(--z-drawer);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}
.overlay-backdrop.active {
  opacity: 1;
  visibility: visible;
}