/* SPDX-License-Identifier: GPL-3.0-or-later */
/* Copyright (C) 2026 AGENT-047185 (JD) */

/* ZENSICAL IMAGES MANAGEMENT SYSTEM (CORE) */

/* =================== BASE ==================== */

img {
  max-width: 100%;
  height: auto;
}

/* ================= VARIABLES ================= */

:root {
  --z-gap: 1rem;
  --z-radius: 12px;

  --z-size-xs: 130px;
  --z-size-sm: 150px;
  --z-size-md: 250px;
  --z-size-lg: 400px;
  --z-size-xl: 500px;

  --z-hover-scale: 1.05;
  --z-hover-lift: -4px;

  --z-shadow: 0 12px 30px rgba(0,0,0,0.35);

  /* cohérence transitions */
  --z-speed-fast: 0.2s;
  --z-speed-slow: 0.4s;
}

/* =================== SIZES =================== */

.z-xs { --z-size: var(--z-size-xs); }
.z-sm { --z-size: var(--z-size-sm); }
.z-md { --z-size: var(--z-size-md); }
.z-lg { --z-size: var(--z-size-lg); }
.z-xl { --z-size: var(--z-size-xl); }

/* =================== IMAGE =================== */

.z-inline img,
.z-row img,
.z-grid img,
.z-single img {
  display: block;
  max-width: var(--z-size);
  width: 100%;
  height: auto;
  flex-shrink: 0;
  border-radius: var(--z-radius);
  transition: transform var(--z-speed-fast) ease, box-shadow var(--z-speed-fast) ease;
}

/* =================== HOVER =================== */

.z-inline img:hover,
.z-row img:hover,
.z-grid img:hover {
  transform: translateY(var(--z-hover-lift)) scale(var(--z-hover-scale));
  box-shadow: var(--z-shadow);
}

/* ================== SPACING ================== */

.z-gap-sm { --z-gap: 0.5rem; }
.z-gap-md { --z-gap: 2rem; }
.z-gap-lg { --z-gap: 3rem; }

/* =================== ALIGN =================== */

.z-v-top    { align-items: flex-start; }
.z-v-center { align-items: center; }
.z-v-bottom { align-items: flex-end; }

.z-h-left   { justify-content: flex-start; }
.z-h-center { justify-content: center; }
.z-h-right  { justify-content: flex-end; }

.z-h-between { justify-content: space-between; }
.z-h-around  { justify-content: space-around; }

/* ==================== ROW ==================== */

.z-row {
  display: flex;
  gap: var(--z-gap);
}

.z-row > * {
  flex: 0 0 auto;
}

/* ==================== GRID =================== */

.z-grid {
  display: grid;
  gap: var(--z-gap);
}

.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }

.z-grid.z-h-left   { justify-items: start; }
.z-grid.z-h-center { justify-items: center; }
.z-grid.z-h-right  { justify-items: end; }

.z-grid.z-v-top    { align-items: start; }
.z-grid.z-v-center { align-items: center; }
.z-grid.z-v-bottom { align-items: end; }

/* =================== INLINE ================== */

.z-inline {
  display: flex;
  align-items: center;
  gap: var(--z-gap);
}

.z-inline p {
  margin: 0;
}

.z-inline a {
  margin-left: auto;
  flex-shrink: 0;
}

/* =================== LINKS =================== */

.z-row a,
.z-grid a {
  text-align: center;
  text-decoration: none;
  color: inherit;
  display: inline-block;
  transition: opacity var(--z-speed-fast) ease;
}

.z-row a:hover,
.z-grid a:hover {
  opacity: 0.9;
}

.z-row a span,
.z-grid a span {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  opacity: 0.7;
}

/* ================== CAPTION ================== */

.z-caption {
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.7;
}

/* =================== VIEWER ================== */

.z-viewer {
  position: fixed;
  inset: 0;

  /* fallback */
  background-color: rgba(0,0,0,0.75);

  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);

  display: flex;
  justify-content: center;
  align-items: center;

  z-index: 1000; /* plus propre que 9999 */

  cursor: zoom-out;
}

.z-viewer img {
  max-width: 95vw;
  max-height: 95vh;
  border-radius: 12px;
  box-shadow: 0 30px 100px rgba(0,0,0,0.9);
}

/* =================== SINGLE ================== */

.z-single {
  justify-content: center;
}

.z-single a {
  display: flex;
  justify-content: center;
}

/* ==================== PAN ==================== */

.z-pan a,
.z-pan-auto a,
.z-pan-mouse a {
  overflow: hidden;
}

.z-pan a img {
  transition: transform var(--z-speed-slow) ease;
}

.z-pan a:hover img {
  transform: translateY(var(--z-hover-lift)) scale(1.1) translateX(-8px);
}

.z-pan-auto a img {
  transition: transform 0.6s ease;
}

.z-pan-auto a:hover img {
  transform: scale(1.1) translateX(-12px);
}

.z-pan-mouse a img {
  transition: transform var(--z-speed-fast) ease;
  will-change: transform;
}

/* =================== ZOOM ==================== */

.zoomi a,
.zoomv a {
  position: relative;
}

.zoomi a::after {
  content: "🔍";
}

.zoomv a::after {
  content: "▶";
}

.zoomi a::after,
.zoomv a::after {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 16px;
  opacity: 0.7;
  pointer-events: none;
  transition: opacity var(--z-speed-fast) ease, transform var(--z-speed-fast) ease;
}

.zoomi a:hover::after,
.zoomv a:hover::after {
  opacity: 1;
  transform: scale(1.1);
}

/* ===================  ==================== */