/* ===== CXART Gallery — Premium Dark Radiology Aesthetic ===== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&family=Playfair+Display:ital,wght@0,700;0,800;1,700&display=swap');

/* ---------- Design Tokens ---------- */
:root {
  --bg-void: #030308;
  --bg-primary: #06070e;
  --bg-secondary: #0a0c18;
  --bg-card: rgba(12, 14, 28, 0.7);
  --bg-card-solid: #0c0e1c;
  --bg-card-hover: rgba(18, 20, 40, 0.8);

  --border-subtle: rgba(139, 92, 246, 0.08);
  --border-mid: rgba(139, 92, 246, 0.18);
  --border-glow: rgba(139, 92, 246, 0.4);

  --text-primary: #f0eef8;
  --text-secondary: #a09cb8;
  --text-muted: #5c577a;
  --text-accent: #c4b5fd;

  --accent-purple: #8b5cf6;
  --accent-violet: #a78bfa;
  --accent-cyan: #22d3ee;
  --accent-pink: #f472b6;
  --accent-emerald: #34d399;

  --gradient-title: linear-gradient(135deg, #f0eef8 0%, #c4b5fd 40%, #8b5cf6 65%, #22d3ee 100%);
  --gradient-card-border: linear-gradient(145deg, rgba(139, 92, 246, 0.25), rgba(34, 211, 238, 0.1), rgba(139, 92, 246, 0.05));
  --gradient-glow-bg: radial-gradient(ellipse at 50% 0%, rgba(139, 92, 246, 0.08) 0%, transparent 70%);

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-card-hover: 0 12px 48px rgba(139, 92, 246, 0.12), 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lightbox: 0 0 80px rgba(139, 92, 246, 0.15), 0 30px 100px rgba(0, 0, 0, 0.6);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 28px;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 0.2s var(--ease-out-expo);
  --transition-smooth: 0.45s var(--ease-out-expo);
  --transition-spring: 0.55s var(--ease-spring);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-void);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}

/* ---------- Particle Canvas ---------- */
#particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ---------- Ambient Background Effects ---------- */
.ambient-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.ambient-bg__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.5;
  animation: orb-drift 20s ease-in-out infinite alternate;
}

.ambient-bg__orb--1 {
  width: 600px; height: 600px;
  background: rgba(139, 92, 246, 0.07);
  top: -10%; left: 15%;
  animation-duration: 25s;
}

.ambient-bg__orb--2 {
  width: 500px; height: 500px;
  background: rgba(34, 211, 238, 0.04);
  bottom: -15%; right: 10%;
  animation-duration: 30s;
  animation-delay: -10s;
}

.ambient-bg__orb--3 {
  width: 400px; height: 400px;
  background: rgba(244, 114, 182, 0.03);
  top: 40%; left: 60%;
  animation-duration: 22s;
  animation-delay: -5s;
}

@keyframes orb-drift {
  0% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.1); }
  66% { transform: translate(-20px, 30px) scale(0.95); }
  100% { transform: translate(15px, -15px) scale(1.05); }
}

/* ---------- Scanline Overlay ---------- */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(139, 92, 246, 0.012) 2px,
    rgba(139, 92, 246, 0.012) 4px
  );
}

/* ---------- Noise texture overlay ---------- */
.noise {
  position: fixed;
  inset: 0;
  z-index: 9997;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}

/* ---------- Content wrapper ---------- */
.content {
  position: relative;
  z-index: 1;
}

/* ---------- Hero Section ---------- */
.hero {
  text-align: center;
  padding: 120px 24px 80px;
  position: relative;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  border-radius: 100px;
  background: rgba(139, 92, 246, 0.06);
  border: 1px solid rgba(139, 92, 246, 0.15);
  color: var(--accent-violet);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 36px;
  backdrop-filter: blur(10px);
}

.hero__badge::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px rgba(52, 211, 153, 0.6);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 8px rgba(52, 211, 153, 0.6); }
  50% { opacity: 0.5; transform: scale(0.7); box-shadow: 0 0 4px rgba(52, 211, 153, 0.3); }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 7rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 28px;
  background: var(--gradient-title);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: title-shimmer 6s ease-in-out infinite alternate;
  background-size: 200% 200%;
}

@keyframes title-shimmer {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

.hero__subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 16px;
  line-height: 1.75;
  font-weight: 300;
  letter-spacing: 0.01em;
}

.hero__divider {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-purple), transparent);
  margin: 28px auto;
  border: none;
}

.hero__meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.hero__meta span {
  color: var(--accent-violet);
  font-weight: 600;
}

/* ---------- Gallery Grid ---------- */
.gallery {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 28px 120px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ---------- Card ---------- */
.card {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-smooth),
              box-shadow var(--transition-smooth);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);

  /* Animated gradient border */
  border: 1px solid transparent;
  background-clip: padding-box;

  /* Scroll animation initial state */
  opacity: 0;
  transform: translateY(50px) scale(0.97);
}

/* Animated border via pseudo-element */
.card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(
    160deg,
    rgba(139, 92, 246, 0.2),
    rgba(34, 211, 238, 0.08),
    rgba(139, 92, 246, 0.05),
    transparent 60%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  z-index: 1;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

/* Top glow line */
.card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 20%;
  right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.4), transparent);
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.card.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  transition: opacity 0.7s var(--ease-out-expo),
              transform 0.7s var(--ease-out-expo),
              box-shadow var(--transition-smooth);
}

.card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: var(--shadow-card-hover);
}

.card.visible:hover {
  transform: translateY(-8px) scale(1.01);
}

.card:hover::before {
  opacity: 1;
  background: linear-gradient(
    160deg,
    rgba(139, 92, 246, 0.4),
    rgba(34, 211, 238, 0.2),
    rgba(139, 92, 246, 0.1),
    transparent 60%
  );
}

.card:hover::after {
  opacity: 1;
}

/* Card Number Badge */
.card__number {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 4;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(6, 7, 14, 0.7);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(139, 92, 246, 0.25);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-violet);
  letter-spacing: 0.02em;
}

/* Image Container */
.card__image-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--bg-secondary);
}

.card__image-wrap::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60%;
  background: linear-gradient(to top, var(--bg-card-solid) 0%, transparent 100%);
  pointer-events: none;
  z-index: 2;
}

.card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out-expo), filter 0.6s var(--ease-out-expo);
  filter: brightness(0.85) contrast(1.08) saturate(0.9);
}

.card:hover .card__image {
  transform: scale(1.1);
  filter: brightness(0.95) contrast(1.12) saturate(1);
}

/* Card Body */
.card__body {
  padding: 24px 26px 30px;
  position: relative;
  z-index: 3;
}

.card__title {
  font-family: var(--font-sans);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 8px;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.card__tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.88rem;
  color: var(--accent-violet);
  margin-bottom: 14px;
  line-height: 1.55;
  font-weight: 400;
  opacity: 0.85;
}

.card__description {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-weight: 300;
}

.card__tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  padding: 5px 14px;
  border-radius: 100px;
  background: rgba(139, 92, 246, 0.06);
  border: 1px solid rgba(139, 92, 246, 0.12);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.card:hover .card__tag {
  border-color: rgba(139, 92, 246, 0.25);
  color: var(--accent-violet);
}

.card__tag::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent-purple);
  opacity: 0.5;
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(3, 3, 8, 0.88);
  backdrop-filter: blur(30px) saturate(0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox__inner {
  position: relative;
  max-width: 80vw;
  max-height: 85vh;
  transform: scale(0.92) translateY(20px);
  transition: transform var(--transition-spring);
}

.lightbox.active .lightbox__inner {
  transform: scale(1) translateY(0);
}

.lightbox__image {
  max-width: 100%;
  max-height: 78vh;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lightbox);
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.lightbox__caption {
  text-align: center;
  margin-top: 24px;
}

.lightbox__caption-title {
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.lightbox__caption-tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--accent-violet);
  opacity: 0.8;
}

.lightbox__close {
  position: absolute;
  top: -52px;
  right: 0;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(139, 92, 246, 0.2);
  background: rgba(139, 92, 246, 0.08);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  color: var(--text-primary);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.lightbox__close:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: rgba(139, 92, 246, 0.4);
  transform: rotate(90deg);
}

/* ---------- Footer ---------- */
.footer {
  text-align: center;
  padding: 48px 24px 72px;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.15), transparent);
}

.footer__text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 2;
  letter-spacing: 0.02em;
}

.footer__text a {
  color: var(--accent-violet);
  text-decoration: none;
  border-bottom: 1px solid rgba(139, 92, 246, 0.2);
  padding-bottom: 1px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.footer__text a:hover {
  color: var(--accent-cyan);
  border-color: rgba(34, 211, 238, 0.3);
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 640px) {
  .gallery {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 16px 80px;
  }
  .hero {
    padding: 80px 16px 48px;
  }
  .card__body {
    padding: 20px 20px 26px;
  }
  .card__title {
    font-size: 1.1rem;
  }
}

/* ---------- Stagger animation delays ---------- */
.card:nth-child(1) { transition-delay: 0.0s; }
.card:nth-child(2) { transition-delay: 0.08s; }
.card:nth-child(3) { transition-delay: 0.16s; }
.card:nth-child(4) { transition-delay: 0.24s; }
.card:nth-child(5) { transition-delay: 0.32s; }
.card:nth-child(6) { transition-delay: 0.40s; }

/* Clear delay once visible to avoid hover lag */
.card.visible {
  transition-delay: 0s;
}

/* ---------- Selection ---------- */
::selection {
  background: rgba(139, 92, 246, 0.3);
  color: var(--text-primary);
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-void);
}

::-webkit-scrollbar-thumb {
  background: rgba(139, 92, 246, 0.2);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(139, 92, 246, 0.35);
}