/* ═══════════════════════════════════════════════════════════
   style.css — Audiosensible
   Typographie : Inter (titres + corps) + JetBrains Mono
   ═══════════════════════════════════════════════════════════ */

/* ── RESET & BASE ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-padding-top: calc(var(--nav-h, 5rem) + var(--rn-nav-h, 0px)); }

:root {
  --rouge:           #8B1A1A;
  --rouge-vif:       #C0392B;
  --rouge-pale:      #f5eeee;
  --rouge-mid:       #d4a0a0;
  --blanc:           #fafaf8;
  --gris-tres-clair: #f4f3f0;
  --gris-clair:      #e8e6e1;
  --gris:            #9a9690;
  --gris-fonce:      #4a4846;
  --encre:           #1a1916;
  --creme:           #f7f5f0;
  --font-titre:      'Inter', sans-serif;
  --font-corps:      'Inter', sans-serif;
  --font-mono:       'JetBrains Mono', monospace;
  --transition:      cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-corps);
  font-weight: 400;
  background: var(--blanc);
  color: var(--encre);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ── SCROLL TOP ── */
#scroll-top {
  position: fixed;
  cursor: pointer;
  top: calc(1.5rem + 60px);
  left: 50%;
  transform: translateX(-50%) scale(0);
  width: 2.75rem;
  height: 2.75rem;
  background-color: var(--encre);
  color: var(--blanc);
  border-radius: 100%;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  opacity: 0;
  transition: opacity 0.3s var(--transition), transform 0.3s var(--transition), background-color 0.3s;
}
#scroll-top.visible { opacity: 1; transform: translateX(-50%) scale(1); }
#scroll-top:hover   { background-color: var(--rouge); transform: translateX(-50%) scale(1.1); }
#scroll-top svg     { width: 16px; height: 16px; }

/* ════════════════════════════════
   NAVIGATION
   ════════════════════════════════ */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 4rem;
  transition: background 0.5s var(--transition), padding 0.4s;
}
nav.scrolled {
  background: rgba(250,250,248,0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 1rem 4rem;
  border-bottom: 0.5px solid var(--gris-clair);
}

/* Logo */
.nav-logo {
  font-family: var(--font-titre);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--encre);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}
.nav-logo-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--rouge);
  flex-shrink: 0;
}

/* Liens desktop */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}
.nav-links > li { position: relative; }

.nav-links a,
.nav-dropdown-trigger {
  font-family: var(--font-titre);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gris-fonce);
  text-decoration: none;
  padding: 0.45rem 0.75rem;
  border-radius: 5px;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 0.2s, background 0.2s;
  background: none;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-dropdown-trigger:hover,
.nav-item-dropdown:hover .nav-dropdown-trigger,
.nav-item-dropdown:focus-within .nav-dropdown-trigger {
  color: var(--encre);
  background: var(--gris-tres-clair);
}

/* Chevron animé */
.nav-chevron {
  width: 10px; height: 10px;
  flex-shrink: 0;
  transition: transform 0.25s var(--transition);
}
.nav-item-dropdown:hover .nav-chevron,
.nav-item-dropdown:focus-within .nav-chevron { transform: rotate(180deg); }

/* Dropdown desktop */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 0.75rem);
  right: 0;
  min-width: 230px;
  background: var(--blanc);
  border: 0.5px solid var(--gris-clair);
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(26,25,22,0.1), 0 2px 8px rgba(26,25,22,0.06);
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 1px;
  list-style: none;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px) scale(0.98);
  transform-origin: top right;
  transition: opacity 0.2s var(--transition), transform 0.2s var(--transition);
  z-index: 200;
}
.nav-item-dropdown:hover .nav-dropdown,
.nav-item-dropdown:focus-within .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}
/* Petit bridge invisible pour éviter le gap entre trigger et dropdown */
.nav-item-dropdown::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  height: 0.75rem;
}
.nav-dropdown a {
  font-family: var(--font-corps);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  text-transform: none;
  color: var(--gris-fonce);
  padding: 0.6rem 0.9rem;
  border-radius: 6px;
  display: block;
  white-space: nowrap;
  background: none;
  transition: color 0.2s, background 0.2s;
}
.nav-dropdown a:hover {
  color: var(--encre);
  background: var(--gris-tres-clair);
}

/* Séparateur optionnel dans dropdown */
.nav-dropdown li + li { border-top: none; }

/* Burger */
.burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.burger span {
  display: block;
  width: 24px; height: 1.5px;
  background: var(--encre);
  transition: transform 0.3s, opacity 0.3s;
}
.burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Menu mobile */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--blanc);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  transition: opacity 0.4s;
}
.mobile-nav.open { opacity: 1; }
.mobile-nav a {
  font-family: var(--font-titre);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--encre);
  text-decoration: none;
  transition: color 0.3s;
}
.mobile-nav a:hover { color: var(--rouge); }

/* ════════════════════════════════
   HERO
   ════════════════════════════════ */
#hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
  overflow: hidden;
  background: var(--blanc);
}
.hero-left {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 4rem 6rem 4rem;
  position: relative;
  z-index: 2;
}
.hero-title {
  font-family: var(--font-titre);
  font-size: clamp(3.5rem, 6vw, 7rem);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.04em;
  color: var(--encre);
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 1s var(--transition) 0.5s forwards;
}
/* "sensible" en italique Inter */
.hero-title em {
  font-style: italic;
  font-weight: 600;
  color: var(--rouge);
  font-size: 0.88em;
  letter-spacing: -0.03em;
}
.hero-subtitle {
  font-family: var(--font-corps);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.75;
  color: var(--gris-fonce);
  max-width: 480px;
  margin-bottom: 3.5rem;
  opacity: 0;
  animation: fadeUp 1s var(--transition) 0.7s forwards;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 2rem;
  opacity: 0;
  animation: fadeUp 1s var(--transition) 0.9s forwards;
}

/* ── BOUTONS ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-titre);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blanc);
  background: var(--encre);
  padding: 1rem 2rem;
  border-radius: 2rem;
  text-decoration: none;
  transition: background 0.3s, transform 0.2s;
  border: none;
  cursor: pointer;
}
.btn-primary:hover { background: var(--rouge); transform: translateY(-2px); }
.btn-primary svg { width: 14px; height: 14px; transition: transform 0.3s; }
.btn-primary:hover svg { transform: translateX(3px); }

.btn-rouge {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-titre);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blanc);
  background: var(--rouge);
  padding: 1.1rem 2.5rem;
  border-radius: 2rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.3s, transform 0.2s, box-shadow 0.3s;
  box-shadow: 0 4px 24px rgba(139,26,26,0.2);
}
.btn-rouge:hover {
  background: var(--rouge-vif);
  transform: translateY(-2px);
  box-shadow: 0 8px 36px rgba(139,26,26,0.35);
}

/* ── HERO DROITE (CANVAS) ── */
.hero-right { position: relative; overflow: hidden; }
.waveform-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  animation: fadeIn 2s ease 1s forwards;
}
.hero-freq-label {
  position: absolute;
  bottom: 5rem;
  right: 4rem;
  text-align: right;
  opacity: 0;
  animation: fadeUp 1s var(--transition) 1.2s forwards;
}
.hero-freq-label .num {
  font-family: var(--font-mono);
  font-size: 5rem;
  font-weight: 300;
  color: var(--encre);
  line-height: 1;
  display: block;
}
.hero-freq-label .unit {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--rouge);
  text-transform: uppercase;
}
.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  animation: fadeIn 1s ease 1.5s forwards;
  z-index: 3;
}
.hero-scroll span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gris);
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--rouge), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* ════════════════════════════════
   SECTIONS GÉNÉRIQUES
   ════════════════════════════════ */
section { position: relative; }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--rouge);
  margin-bottom: 1.5rem;
}
.section-title-lg {
  font-family: var(--font-titre);
  font-size: clamp(2.8rem, 5vw, 5.5rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--encre);
}
/* em en italique Inter dans les titres de section */
.section-title-lg em {
  font-style: italic;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: inherit;
}

/* ════════════════════════════════
   POURQUOI
   ════════════════════════════════ */
#pourquoi {
  padding: 12rem 4rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8rem;
  align-items: center;
  background: var(--blanc);
}
.pourquoi-left .section-title-lg { margin-bottom: 2.5rem; }
.pourquoi-stat {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 0.5px solid var(--gris-clair);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.stat-num {
  font-family: var(--font-titre);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--rouge);
  line-height: 1;
  letter-spacing: -0.04em;
}
.stat-label {
  font-family: var(--font-corps);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--gris-fonce);
  line-height: 1.6;
  margin-top: 0.5rem;
}
.pourquoi-text-large {
  font-family: var(--font-corps);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 500;
  line-height: 1.65;
  color: var(--encre);
  margin-bottom: 2.5rem;
}
.pourquoi-text-large strong { color: var(--rouge); font-weight: 700; }
.pourquoi-body {
  font-family: var(--font-corps);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.8;
  color: var(--gris-fonce);
}

/* ════════════════════════════════
   DISPOSITIF
   ════════════════════════════════ */
#dispositif { background: var(--encre); color: var(--blanc); padding: 10rem 4rem; }
.dispositif-header {
  display: flex; align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 6rem; gap: 4rem;
}
.dispositif-header .section-label { color: rgba(255,255,255,0.8); }
.dispositif-header .section-title-lg { color: var(--blanc); }
.dispositif-header .section-title-lg em { color: var(--rouge-mid); }
.dispositif-intro {
  font-family: var(--font-corps);
  font-size: 1rem; font-weight: 400; line-height: 1.75;
  color: rgba(255,255,255,0.85);
  max-width: 380px; flex-shrink: 0; align-self: flex-end;
}
.dispositif-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5px;
  background: rgba(255,255,255,0.08);
}
.dispositif-item {
  background: var(--encre);
  padding: 3rem 2.5rem;
  position: relative; overflow: hidden;
  transition: background 0.4s var(--transition);
}
.dispositif-item::before {
  content: '';
  position: absolute; bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--rouge);
  transition: width 0.5s var(--transition);
}
.dispositif-item:hover { background: #1e1d19; }
.dispositif-item:hover::before { width: 100%; }
.dispositif-num {
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 0.15em; color: rgba(255,255,255,0.8); margin-bottom: 2.5rem;
}
.dispositif-icon { width: 40px; height: 40px; margin-bottom: 1.5rem; opacity: 0.7; }
.dispositif-item-title {
  font-family: var(--font-titre); font-size: 1.05rem; font-weight: 700;
  color: var(--blanc); margin-bottom: 1rem; letter-spacing: -0.02em;
}
.dispositif-item-body {
  font-family: var(--font-corps); font-size: 0.95rem; font-weight: 400;
  line-height: 1.75; color: rgba(255,255,255,0.82);
}

/* ════════════════════════════════
   TROUBLES
   ════════════════════════════════ */
#troubles { padding: 10rem 4rem; background: var(--blanc); }
.troubles-header { margin-bottom: 5rem; }
.troubles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5px;
  background: var(--gris-clair);
}
.trouble-card {
  background: var(--blanc);
  padding: 3.5rem 3rem;
  position: relative; overflow: hidden;
  cursor: pointer;
  transition: background 0.4s var(--transition);
  display: flex; flex-direction: column;
  text-decoration: none; color: inherit;
}
.trouble-card::after {
  content: '';
  position: absolute; inset: 0;
  background: var(--rouge);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.5s var(--transition);
  z-index: 0;
}
.trouble-card:hover { background: var(--rouge); }
.trouble-card:hover::after { transform: scaleY(1); }
.trouble-card > * { position: relative; z-index: 1; }
.trouble-card:hover .trouble-num,
.trouble-card:hover .trouble-tag,
.trouble-card:hover .trouble-title,
.trouble-card:hover .trouble-desc,
.trouble-card:hover .trouble-freq { color: rgba(255,255,255,0.9) !important; }
.trouble-card:hover .trouble-title { color: #fff !important; }
.trouble-card:hover .trouble-wave path { stroke: rgba(255,255,255,0.6); }
.trouble-num {
  font-family: var(--font-mono); font-size: 0.68rem;
  letter-spacing: 0.15em; color: var(--gris); margin-bottom: 3rem; transition: color 0.4s;
}
.trouble-wave { width: 100%; height: 40px; margin-bottom: 2rem; overflow: visible; }
.trouble-wave path { stroke: var(--rouge-mid); stroke-width: 1.5; fill: none; transition: stroke 0.4s; }
.trouble-tag {
  font-family: var(--font-mono); font-size: 0.62rem;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--rouge); margin-bottom: 0.75rem; transition: color 0.4s;
}
.trouble-title {
  font-family: var(--font-titre); font-size: 1.9rem; font-weight: 800;
  letter-spacing: -0.04em; color: var(--encre); margin-bottom: 1.25rem; transition: color 0.4s;
}
.trouble-desc {
  font-family: var(--font-corps); font-size: 0.95rem; font-weight: 400;
  line-height: 1.75; color: var(--gris-fonce); flex: 1; transition: color 0.4s;
}
.trouble-freq {
  margin-top: 2.5rem;
  font-family: var(--font-mono); font-size: 0.68rem;
  letter-spacing: 0.15em; color: var(--gris);
  padding-top: 1.5rem;
  border-top: 0.5px solid var(--gris-clair);
  transition: color 0.4s, border-color 0.4s;
}
.trouble-card:hover .trouble-freq { border-color: rgba(255,255,255,0.25) !important; }

/* ════════════════════════════════
   FOOTER
   ════════════════════════════════ */
footer {
  background: var(--encre);
  color: var(--blanc);
  padding: 6rem 4rem 3rem;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 4rem;
  padding-bottom: 5rem;
  border-bottom: 0.5px solid rgba(255,255,255,0.1);
  margin-bottom: 3rem;
}

/* Footer brand / logo */
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.footer-brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
}
.footer-logo-svg {
  width: 36px; height: 36px;
  flex-shrink: 0;
}
.footer-brand-name {
  font-family: var(--font-titre);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--blanc);
}
.footer-brand-tagline {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.8);
}
.footer-brand-body {
  font-family: var(--font-corps);
  font-size: 0.9rem;
  font-weight: 400;
  line-height: 1.7;
  color: rgba(255,255,255,0.82);
  max-width: 280px;
}

/* Footer colonnes */
.footer-col-title {
  font-family: var(--font-titre);
  font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: rgba(255,255,255,0.8); margin-bottom: 1.5rem;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.75rem; }
.footer-col ul a {
  font-family: var(--font-corps);
  font-size: 0.9rem; font-weight: 400;
  color: rgba(255,255,255,0.82); text-decoration: none; transition: color 0.3s;
}
.footer-col ul a:hover { color: var(--blanc); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.65rem; letter-spacing: 0.1em; color: rgba(255,255,255,0.8);
}

/* ════════════════════════════════
   SCROLL REVEAL
   ════════════════════════════════ */
.reveal {
  opacity: 0; transform: translateY(32px);
  transition: opacity 0.9s var(--transition), transform 0.9s var(--transition);
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.3s; }
.reveal-delay-3 { transition-delay: 0.45s; }

/* ════════════════════════════════
   ANIMATIONS
   ════════════════════════════════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: none; }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50%       { transform: scaleY(0.5); opacity: 0.5; }
}

/* ════════════════════════════════
   FOCUS VISIBLE (accessibilité clavier)
   ════════════════════════════════ */
:focus-visible {
  outline: 2px solid var(--rouge);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ════════════════════════════════
   RESPONSIVE
   ════════════════════════════════ */
@media (max-width: 1200px) {
  .nav-links a,
  .nav-dropdown-trigger { font-size: 0.7rem; padding: 0.4rem 0.55rem; }
}

@media (max-width: 1024px) {
  #hero { grid-template-columns: 1fr; }
  .hero-left {
    padding: 7rem 2.5rem 5rem;
    justify-content: center;
  }
  .hero-right { position: absolute; inset: 0; opacity: 0.25; }
  nav { padding: 1.25rem 2.5rem; }
  nav.scrolled { padding: 1rem 2.5rem; }
  .nav-links { display: none; }
  .burger { display: flex; }
  #pourquoi { grid-template-columns: 1fr; padding: 8rem 2.5rem; gap: 5rem; }
  #dispositif { padding: 8rem 2.5rem; }
  .dispositif-header { flex-direction: column; gap: 2rem; }
  .dispositif-grid { grid-template-columns: 1fr; }
  #troubles { padding: 8rem 2.5rem; }
  .troubles-grid { grid-template-columns: 1fr; }
  footer { padding: 5rem 2.5rem 2.5rem; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 3rem; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}

@media (max-width: 640px) {
  .hero-title { font-size: clamp(2.8rem, 10vw, 4.5rem); }
  .section-title-lg { font-size: clamp(2.2rem, 8vw, 3.5rem); }
  .pourquoi-stat { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  nav { padding: 1.25rem 1.5rem; }
  nav.scrolled { padding: 0.85rem 1.5rem; }
  .hero-left { padding: 5.5rem 1.5rem 4rem; }
  .hero-subtitle { max-width: 100%; }
  .hero-actions { display: none; }
  #pourquoi, #dispositif, #troubles { padding-left: 1.5rem; padding-right: 1.5rem; }
  footer { padding-left: 1.5rem; padding-right: 1.5rem; }
}