/* ============================================================
   Utilities — classes utilitaires réutilisables
   ============================================================ */

/* Glass effect ------------------------------------------------- */
.tkm-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  box-shadow: var(--sh-glass), var(--sh-inner);
  border-radius: var(--r-lg);
}
.tkm-glass--strong {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(var(--glass-blur-lg));
  -webkit-backdrop-filter: blur(var(--glass-blur-lg));
}
.tkm-glass--dark {
  background: var(--glass-bg-dark);
  backdrop-filter: blur(var(--glass-blur-lg));
  -webkit-backdrop-filter: blur(var(--glass-blur-lg));
  border-color: rgba(255,255,255,0.18);
  color: #fff;
}

/* Gradient text ---------------------------------------------- */
.tkm-gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* Eyebrow ---------------------------------------------------- */
.tkm-eyebrow {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-primary);
}

/* Divider ---------------------------------------------------- */
.tkm-divider {
  width: 80px;
  height: 4px;
  background: var(--gradient-brand);
  border-radius: var(--r-full);
  border: 0;
}

/* Full bleed ------------------------------------------------- */
.tkm-full-bleed {
  width: 100vw;
  margin-inline: calc(50% - 50vw);
}

/* Visually hidden -------------------------------------------- */
.tkm-sr-only {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Animations utility ----------------------------------------- */
@keyframes tkm-float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}
@keyframes tkm-fade-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes tkm-shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.tkm-fade-in { animation: tkm-fade-in var(--t-slow) var(--ease-out) both; }
.tkm-float   { animation: tkm-float 6s var(--ease-in-out) infinite; }

/* Reveal on scroll (via IntersectionObserver) */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}
[data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}
[data-reveal][data-reveal-delay="1"].is-revealed { transition-delay: 80ms; }
[data-reveal][data-reveal-delay="2"].is-revealed { transition-delay: 160ms; }
[data-reveal][data-reveal-delay="3"].is-revealed { transition-delay: 240ms; }
[data-reveal][data-reveal-delay="4"].is-revealed { transition-delay: 320ms; }

@media (prefers-reduced-motion: reduce) {
  .tkm-fade-in, .tkm-float { animation: none; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* Background grid (decoration) ------------------------------- */
.tkm-bg-grid {
  background-image:
    linear-gradient(rgba(10,115,186,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,115,186,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* Aspect ratios ---------------------------------------------- */
.tkm-aspect-4-3 { aspect-ratio: 4/3; object-fit: cover; }
.tkm-aspect-16-9 { aspect-ratio: 16/9; object-fit: cover; }
.tkm-aspect-1-1 { aspect-ratio: 1/1; object-fit: cover; }

/* Spacers --------------------------------------------------- */
.tkm-mt-section { margin-top: var(--section-py); }
.tkm-mb-section { margin-bottom: var(--section-py); }