/* ============================================================
   ANIMATIONS.CSS  v1.0.0
   Royal Clinical Portfolio — Dr. Marjuq Al Tuhin
   Scroll-reveal · Hero · Hover · Micro-interactions
   ============================================================ */

/* ── SCROLL REVEAL SYSTEM ─────────────────────────────────── */
/* Elements with [data-reveal] are invisible until JS adds .revealed */

[data-reveal] {
  opacity: 0;
  transition-property: opacity, transform;
  transition-duration: 0.8s;
  transition-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

[data-reveal="up"]    { transform: translateY(40px); }
[data-reveal="down"]  { transform: translateY(-40px); }
[data-reveal="left"]  { transform: translateX(-40px); }
[data-reveal="right"] { transform: translateX(40px); }
[data-reveal="fade"]  { transform: none; }
[data-reveal="scale"] { transform: scale(0.92); }

[data-reveal].revealed {
  opacity: 1;
  transform: none !important;
}

/* Stagger delays (add data-delay="X" for X=1..8) */
[data-delay="1"].revealed  { transition-delay: 100ms; }
[data-delay="2"].revealed  { transition-delay: 200ms; }
[data-delay="3"].revealed  { transition-delay: 300ms; }
[data-delay="4"].revealed  { transition-delay: 400ms; }
[data-delay="5"].revealed  { transition-delay: 500ms; }
[data-delay="6"].revealed  { transition-delay: 600ms; }
[data-delay="7"].revealed  { transition-delay: 700ms; }
[data-delay="8"].revealed  { transition-delay: 800ms; }

/* ── HERO ENTRANCE ANIMATION ──────────────────────────────── */
@keyframes hero-fade-up {
  from {
    opacity: 0;
    transform: translateY(32px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hero-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes hero-slide-right {
  from {
    opacity: 0;
    transform: translateX(-48px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-hero-1 { animation: hero-fade-up   0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.1s both; }
.animate-hero-2 { animation: hero-fade-up   0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.25s both; }
.animate-hero-3 { animation: hero-fade-up   0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.4s both; }
.animate-hero-4 { animation: hero-fade-up   0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.55s both; }
.animate-hero-5 { animation: hero-fade-up   0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.7s both; }
.animate-hero-img { animation: hero-fade-in 1.2s cubic-bezier(0.22, 1, 0.36, 1) 0.3s both; }

/* ── FLOATING DECORATIVE RING ─────────────────────────────── */
@keyframes float-slow {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33%       { transform: translateY(-12px) rotate(1deg); }
  66%       { transform: translateY(-6px) rotate(-1deg); }
}
@keyframes float-delayed {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-8px); }
}

.float-slow    { animation: float-slow    8s ease-in-out infinite; }
.float-delayed { animation: float-delayed 6s ease-in-out 2s infinite; }

/* ── SHIMMER / SKELETON ───────────────────────────────────── */
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}

.shimmer {
  background: linear-gradient(
    90deg,
    rgba(255,255,255,0.04) 25%,
    rgba(255,255,255,0.09) 50%,
    rgba(255,255,255,0.04) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.8s ease-in-out infinite;
}

/* ── GOLD GLOW PULSE ──────────────────────────────────────── */
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(197,160,89,0.1); }
  50%       { box-shadow: 0 0 50px rgba(197,160,89,0.25); }
}
.glow-pulse { animation: glow-pulse 3s ease-in-out infinite; }

/* ── HERO DOCTOR IMAGE DECORATIONS ───────────────────────── */
@keyframes orbit-slow {
  from { transform: rotate(0deg) translateX(0px); }
  to   { transform: rotate(360deg) translateX(0px); }
}

@keyframes ring-expand {
  0%, 100% { transform: scale(1);    opacity: 0.3; }
  50%       { transform: scale(1.05); opacity: 0.6; }
}

.ring-pulse { animation: ring-expand 4s ease-in-out infinite; }

/* Dot grid decoration */
@keyframes dot-drift {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-8px); }
}
.dot-drift { animation: dot-drift 7s ease-in-out infinite; }

/* ── COUNTER ANIMATION ────────────────────────────────────── */
/* Handled by JS — this just adds the digit-roll feel */
.counter-value {
  display: inline-block;
  transition: none;
}

/* ── TAB CONTENT CROSSFADE ────────────────────────────────── */
.tab-panel {
  display: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--t-med), transform var(--t-med);
}
.tab-panel.active {
  display: block;
  animation: tab-show 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes tab-show {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── GALLERY HOVER ────────────────────────────────────────── */
.gallery-item {
  overflow: hidden;
  border-radius: var(--r-md);
  position: relative;
  cursor: pointer;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  display: block;
}
.gallery-item:hover img { transform: scale(1.06); }

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(6,15,26,0.85) 0%,
    rgba(6,15,26,0.2)  50%,
    transparent        100%
  );
  opacity: 0;
  transition: opacity var(--t-med);
  display: flex;
  align-items: flex-end;
  padding: var(--sp-5);
}
.gallery-item:hover .gallery-overlay { opacity: 1; }

/* ── LIGHTBOX ─────────────────────────────────────────────── */
#lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: rgba(6,15,26,0.96);
  backdrop-filter: blur(24px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-8);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-med);
}
#lightbox.open {
  opacity: 1;
  pointer-events: auto;
}
#lightbox img {
  max-width: min(90vw, 900px);
  max-height: 85vh;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  animation: lightbox-zoom 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes lightbox-zoom {
  from { opacity: 0; transform: scale(0.9); }
  to   { opacity: 1; transform: scale(1); }
}
.lightbox-close {
  position: absolute;
  top: var(--sp-6);
  right: var(--sp-6);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--glass-dark);
  border: var(--border-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--t-fast);
}
.lightbox-close:hover {
  background: rgba(197,160,89,0.12);
  color: var(--gold);
}

/* ── PROGRESS BAR ─────────────────────────────────────────── */
.progress-bar {
  height: 2px;
  background: rgba(197,160,89,0.12);
  border-radius: var(--r-full);
  overflow: hidden;
}
.progress-bar__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold));
  border-radius: inherit;
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}
.progress-bar__fill.animated { transform: scaleX(1); }

/* ── TIMELINE KEYFRAMES & UTILS ──────────────────────────── */
/* (Base styles managed cleanly in components.css) */

/* ── PAGE TRANSITION ─────────────────────────────────────── */
.page-transition {
  animation: page-in 0.5s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes page-in {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}