/* XtremToolBox — même composition qu’avant, Fluent + palette fraîche
   Confiance (bleu) · fraîcheur (teal) · joie (soleil doux) */

:root {
  --bg: #E8F4FA;
  --bg-elev: rgba(255, 255, 255, 0.72);
  --ink: #0F2942;
  --muted: #4A6578;
  --line: rgba(15, 76, 129, 0.12);
  --accent: #0078D4;
  --accent-hover: #106EBE;
  --accent-soft: rgba(0, 120, 212, 0.12);
  --accent-ink: #ffffff;
  --fresh: #00B7C3;
  --joy: #FFB900;
  --joy-soft: rgba(255, 185, 0, 0.2);
  --ok: #00B294;
  --radius: 8px;
  --radius-lg: 12px;
  --max: 1080px;
  --font-display: "Syne", "Segoe UI Variable", sans-serif;
  --font-body: "Outfit", "Segoe UI Variable", "Segoe UI", sans-serif;
  --shadow-sm: 0 1px 2px rgba(15, 41, 66, 0.06), 0 2px 8px rgba(15, 41, 66, 0.04);
  --shadow-md: 0 2px 4px rgba(15, 41, 66, 0.06), 0 8px 24px rgba(15, 41, 66, 0.08);
  --shadow-lg: 0 4px 8px rgba(15, 41, 66, 0.08), 0 16px 40px rgba(15, 41, 66, 0.1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  color: var(--accent-hover);
}

.atmosphere {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 55% at 15% -10%, rgba(0, 120, 212, 0.22), transparent 55%),
    radial-gradient(ellipse 60% 45% at 95% 15%, rgba(0, 183, 195, 0.2), transparent 50%),
    radial-gradient(ellipse 40% 35% at 70% 80%, rgba(255, 185, 0, 0.12), transparent 55%),
    linear-gradient(165deg, #E8F4FA 0%, #F0FBFF 45%, #E6F7F4 100%);
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.acrylic {
  background: var(--bg-elev);
  backdrop-filter: blur(28px) saturate(1.35);
  -webkit-backdrop-filter: blur(28px) saturate(1.35);
  border: 1px solid rgba(255, 255, 255, 0.75);
  box-shadow: var(--shadow-sm);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
}

.brand-mark:hover {
  color: var(--ink);
  text-decoration: none;
}

.brand-mark img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.site-nav a {
  color: var(--muted);
  font-weight: 500;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--ink);
}

.nav-cta {
  color: var(--accent-ink) !important;
  background: var(--accent);
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius);
  font-weight: 600 !important;
  box-shadow: var(--shadow-sm);
  transition: background 0.15s ease, box-shadow 0.15s ease;
}

.nav-cta:hover {
  background: var(--accent-hover);
  text-decoration: none;
  box-shadow: var(--shadow-md);
}

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3.5rem 1.5rem 4.5rem;
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
  min-height: calc(100vh - 5.5rem);
}

.brand-hero {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--ink);
  animation: rise 0.8s ease both;
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(1.25rem, 2.4vw, 1.65rem);
  line-height: 1.35;
  color: var(--muted);
  max-width: 28ch;
  animation: rise 0.8s ease 0.08s both;
}

.hero-lead {
  margin: 0 0 1.75rem;
  max-width: 42ch;
  color: var(--ink);
  opacity: 0.9;
  animation: rise 0.8s ease 0.16s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  animation: rise 0.8s ease 0.24s both;
}

.hero-meta {
  margin: 1.25rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
  animation: rise 0.8s ease 0.32s both;
}

.hero-visual {
  display: grid;
  place-items: center;
  position: relative;
  animation: float-in 1s ease 0.2s both;
}

.hero-visual::before {
  content: "";
  position: absolute;
  width: min(320px, 70vw);
  height: min(320px, 70vw);
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft), transparent 70%);
  filter: blur(8px);
}

.hero-logo {
  width: min(220px, 55vw);
  height: auto;
  position: relative;
  border-radius: 28px;
  box-shadow: var(--shadow-lg);
  animation: float 6s ease-in-out infinite;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid transparent;
  text-decoration: none;
  transition: transform 0.12s ease, filter 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--accent-ink);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink);
  border-color: var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.btn-ghost:hover {
  background: #fff;
  border-color: rgba(0, 120, 212, 0.25);
  color: var(--accent);
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
}

.section-head {
  margin-bottom: 2rem;
  max-width: 40rem;
}

.section-head h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

.tool-list {
  list-style: none;
  margin: 0;
  padding: 0.25rem 1.25rem;
  display: grid;
  gap: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.tool-list li {
  display: grid;
  grid-template-columns: minmax(10rem, 14rem) 1fr;
  gap: 1rem 1.5rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
}

.tool-list li:last-child {
  border-bottom: none;
}

.tool-list strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--ink);
}

.tool-list span {
  color: var(--muted);
}

.downloads {
  padding-bottom: 5rem;
}

.version-list {
  display: grid;
  gap: 0.85rem;
}

.version-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  background: var(--bg-elev);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.version-row:hover {
  box-shadow: var(--shadow-md);
}

.version-row.is-latest {
  border-color: rgba(0, 120, 212, 0.35);
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(0, 120, 212, 0.08);
}

.version-meta {
  display: grid;
  gap: 0.2rem;
}

.version-meta strong {
  font-size: 1.05rem;
}

.version-meta span {
  color: var(--muted);
  font-size: 0.9rem;
}

.badge {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--joy-soft), var(--accent-soft));
  color: #8A5B00;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  vertical-align: middle;
}

.download-note,
.loading,
.error {
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.error {
  color: #C42B1C;
}

.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0.25rem 0;
}

.site-footer .muted {
  opacity: 0.85;
}

.site-footer strong {
  color: var(--ink);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float-in {
  from {
    opacity: 0;
    transform: scale(0.92);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@media (max-width: 820px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 2rem;
  }

  .hero-visual {
    order: -1;
  }

  .hero-logo {
    width: min(160px, 42vw);
  }

  .tool-list li {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
}

@media (max-width: 520px) {
  .site-nav a:not(.nav-cta) {
    display: none;
  }

  .version-row {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  html {
    scroll-behavior: auto;
  }
}