/* ============================================================
   AltiaGeo-Group — Design System
   Charte : Bleu marine · Blanc · Vert épuré · Orange accent
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  /* Couleurs primaires */
  --c-navy:       #040a7a;   /* bleu marine profond */
  --c-blue:       #060d85;   /* bleu principal */
  --c-blue-mid:   #1a22c4;   /* bleu intermédiaire */
  --c-blue-light: #D6E4F0;   /* bleu très clair (fonds) */

  /* Vert épuré */
  --c-green:      #1A6B4A;   /* vert foncé */
  --c-green-mid:  #2A8B5F;   /* vert principal */
  --c-green-light:#D4EDE2;   /* vert très clair (fonds) */

  /* Orange (accent minimal) */
  --c-orange:     #E07B2A;   /* orange principal */
  --c-orange-h:   #C96A1A;   /* orange hover */

  /* Neutres */
  --c-white:      #FFFFFF;
  --c-off-white:  #F7F9FC;
  --c-gray-100:   #EEF1F5;
  --c-gray-300:   #C8D0DB;
  --c-gray-500:   #7A8899;
  --c-gray-700:   #3D4E61;
  --c-gray-900:   #1A2535;

  /* Typographie */
  --font-main: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-display: 'Sora', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Espacements */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Rayons */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-pill: 999px;

  /* Ombres */
  --shadow-sm: 0 1px 3px rgba(11,31,58,.08);
  --shadow-md: 0 4px 16px rgba(11,31,58,.12);
  --shadow-lg: 0 8px 32px rgba(11,31,58,.18);

  /* Transitions */
  --ease: cubic-bezier(.4,0,.2,1);
  --t-fast: 150ms var(--ease);
  --t-med:  250ms var(--ease);
  --t-slow: 400ms var(--ease);

  /* Layout */
  --max-w: 1200px;
  --header-h: 68px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  color: var(--c-gray-900);
  background: var(--c-white);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font: inherit; }
input, textarea, select { font: inherit; }

/* ── Typographie ────────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-navy);
}
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
h4 { font-size: 1.1rem; }

p { color: var(--c-gray-700); }

.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.font-mono { font-family: var(--font-mono); }

/* ── Couleurs utilitaires ───────────────────────────────────── */
.text-navy   { color: var(--c-navy); }
.text-blue   { color: var(--c-blue); }
.text-green  { color: var(--c-green-mid); }
.text-orange { color: var(--c-orange); }
.text-muted  { color: var(--c-gray-500); }
.text-white  { color: var(--c-white); }

.bg-navy      { background: var(--c-navy); }
.bg-blue      { background: var(--c-blue); }
.bg-white     { background: var(--c-white); }
.bg-off-white { background: var(--c-off-white); }
.bg-green-light { background: var(--c-green-light); }
.bg-blue-light  { background: var(--c-blue-light); }

/* ── Layout ─────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.section {
  padding-block: var(--space-3xl);
}

.section--sm {
  padding-block: var(--space-2xl);
}

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }

@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ── Header ─────────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--c-navy);
  z-index: 1000;
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: background var(--t-med), box-shadow var(--t-med);
}

.site-header.scrolled {
  background: rgba(11,31,58,.97);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-lg);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-lg);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.logo__img {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 2px solid var(--c-orange);
  object-fit: cover;
}

.logo__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--c-white);
  letter-spacing: -0.02em;
}

/* Langue switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(255,255,255,.08);
  border-radius: var(--radius-pill);
  padding: 3px;
}

.lang-btn {
  background: none;
  border: none;
  color: rgba(255,255,255,.6);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: .05em;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  transition: all var(--t-fast);
}

.lang-btn.active,
.lang-btn:hover {
  background: var(--c-orange);
  color: var(--c-white);
}

/* Nav desktop */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-link {
  color: rgba(255,255,255,.8);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: .03em;
  padding: 6px 10px;
  border-radius: var(--radius-md);
  transition: all var(--t-fast);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--c-white);
  background: rgba(255,255,255,.1);
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown__menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  /*background: var(--c-white);*/
  background: rgba(11,31,58,0.95); /* bleu semi-transparent */
  border: 1px solid rgb(5, 88, 196);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-lg);
  min-width: 220px;
  opacity: 0;
  pointer-events: none;
  transition: all var(--t-med);
  border: 1px solid var(--c-gray-100);
  overflow: hidden;
}
/* Les liens du menu dropdown ont un style similaire aux nav-links, mais avec un fond transparent par défaut */
.nav-link,
.nav-dropdown > a {
  color: rgba(255,255,255,0.9);
  background: transparent;
}
.nav-link:hover,
.nav-dropdown:hover > a {
  background: rgba(255,255,255,0.15);
  color: #fff;
}


.nav-dropdown:hover .nav-dropdown__menu,
.nav-dropdown__menu:hover {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px 16px;
  color: var(--c-gray-700);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--t-fast);
  border-left: 3px solid transparent;
}

.nav-dropdown__item:hover {
  background: rgba(219, 112, 4, 0.781); /* orange transparent */
  color: #fff;
  border-left-color: var(--c-green-mid);
}

/*.nav-dropdown__item:hover {
  background: var(--c-blue-light);
  color: var(--c-blue);
  border-left-color: var(--c-green-mid);
}*/

.nav-dropdown__icon {
  font-size: 1rem;
  width: 20px;
  text-align: center;
}

/* Bouton contact header */
.btn-contact-header {
  background: var(--c-green-mid);
  color: var(--c-white);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: none;
  transition: all var(--t-fast);
  letter-spacing: .03em;
  white-space: nowrap;
}

.btn-contact-header:hover {
  background: var(--c-green);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(26,107,74,.3);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
  border-radius: var(--radius-sm);
}

.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--c-white);
  border-radius: 2px;
  transition: all var(--t-med);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Menu mobile */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0;
  /* Fond inp-hb.webp avec overlay sombre pour lisibilité du texte */
  background-image:
    linear-gradient(rgba(14, 22, 172, 0.418), rgba(11, 20, 194, 0.603)),
    url("../../font/inp-hb.webp");
  background-size: cover;
  background-position: center top;
  border-top: 1px solid rgba(255,255,255,.15);
  z-index: 999;
  flex-direction: column;
  padding: var(--space-md);
  gap: 4px;
  max-height: calc(100vh - var(--header-h));
  overflow-y: auto;
}

.nav-mobile.open { display: flex; }

.nav-mobile__link {
  color: rgba(255,255,255,.85);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  transition: all var(--t-fast);
  display: block;
}

.nav-mobile__link:hover {
  background: rgba(255,255,255,.1);
  color: var(--c-white);
}

.nav-mobile__submenu {
  padding-left: var(--space-md);
  border-left: 2px solid var(--c-green-mid);
  margin-left: 16px;
  display: none;
}

.nav-mobile__submenu.open { display: block; }

.nav-mobile__sub-item {
  color: rgba(255,255,255,.7);
  font-size: 0.875rem;
  padding: 8px 12px;
  display: block;
  border-radius: var(--radius-sm);
  transition: all var(--t-fast);
}

.nav-mobile__sub-item:hover {
  color: var(--c-white);
  background: rgba(255,255,255,.08);
}

.nav-mobile__toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  background: none;
  border: none;
  color: rgba(255,255,255,.85);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  text-align: left;
  transition: all var(--t-fast);
}

.nav-mobile__toggle:hover { background: rgba(255,255,255,.1); color: var(--c-white); }

.nav-mobile__toggle-arrow {
  transition: transform var(--t-med);
  font-size: 0.7rem;
}
.nav-mobile__toggle.open .nav-mobile__toggle-arrow { transform: rotate(180deg); }

@media (max-width: 900px) {
  .nav-desktop { display: none; }
  .hamburger   { display: flex; }
}

/* ── Boutons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  padding: 10px 24px;
  transition: all var(--t-fast);
  font-size: 0.9rem;
  letter-spacing: .02em;
  cursor: pointer;
  white-space: nowrap;
}

.btn--primary {
  background: var(--c-green-mid);
  color: var(--c-white);
  border-color: var(--c-green-mid);
}
.btn--primary:hover {
  background: var(--c-green);
  border-color: var(--c-green);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26,107,74,.3);
}

.btn--secondary {
  background: transparent;
  color: var(--c-white);
  border-color: rgba(255,255,255,.5);
}
.btn--secondary:hover {
  border-color: var(--c-white);
  background: rgba(255,255,255,.1);
}

.btn--outline-blue {
  background: transparent;
  color: var(--c-blue);
  border-color: var(--c-blue);
}
.btn--outline-blue:hover {
  background: var(--c-blue);
  color: var(--c-white);
}

.btn--orange {
  background: var(--c-orange);
  color: var(--c-white);
  border-color: var(--c-orange);
}
.btn--orange:hover {
  background: var(--c-orange-h);
  border-color: var(--c-orange-h);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(224,123,42,.3);
}

.btn--sm { padding: 7px 16px; font-size: 0.82rem; }
.btn--lg { padding: 14px 32px; font-size: 1rem; }

/* ── Cards ───────────────────────────────────────────────────── */
.card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--c-gray-100);
  overflow: hidden;
  transition: all var(--t-med);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.card__body { padding: var(--space-xl); }
.card__icon {
  font-size: 2.2rem;
  margin-bottom: var(--space-md);
  display: block;
}
.card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-navy);
  margin-bottom: var(--space-sm);
}
.card__text {
  font-size: 0.9rem;
  color: var(--c-gray-500);
  line-height: 1.6;
}

/* Accent vert sur la carte */
.card--accent {
  border-top: 3px solid var(--c-green-mid);
}

/* ── Badges & Tags ───────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: .05em;
}
.badge--blue   { background: var(--c-blue-light);  color: var(--c-blue); }
.badge--green  { background: var(--c-green-light); color: var(--c-green); }
.badge--orange { background: #FEF0E7; color: var(--c-orange-h); }
.badge--red    { background: #FDEAEA; color: #C0392B; }

/* ── Section titles ──────────────────────────────────────────── */
.section-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-green-mid);
  margin-bottom: var(--space-sm);
}

.section-title {
  color: var(--c-navy);
  margin-bottom: var(--space-md);
}

.section-subtitle {
  color: var(--c-gray-500);
  font-size: 1.05rem;
  max-width: 600px;
}

.section-header {
  margin-bottom: var(--space-2xl);
}

.section-header.center {
  text-align: center;
}
.section-header.center .section-subtitle {
  margin-inline: auto;
}

/* ── Divider ─────────────────────────────────────────────────── */
.divider {
  width: 48px; height: 3px;
  background: var(--c-green-mid);
  border-radius: 2px;
  margin-block: var(--space-md);
}
.section-header.center .divider { margin-inline: auto; }

/* ── Formulaires ─────────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-gray-700);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--c-gray-300);
  border-radius: var(--radius-md);
  background: var(--c-white);
  color: var(--c-gray-900);
  font-size: 0.9rem;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--c-blue-mid);
  box-shadow: 0 0 0 3px rgba(30,84,148,.12);
}

.form-textarea { resize: vertical; min-height: 100px; }

.form-hint {
  font-size: 0.78rem;
  color: var(--c-gray-500);
}

.form-error {
  font-size: 0.78rem;
  color: #C0392B;
}

/* Fileupload */
.file-tag {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--c-blue-light);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  margin-top: 4px;
  font-size: 0.82rem;
  color: var(--c-blue);
}
.file-tag__remove {
  background: none;
  border: none;
  color: #C0392B;
  font-size: 1rem;
  line-height: 1;
  padding: 0 2px;
  cursor: pointer;
}


/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  background: var(--c-navy);
  color: rgba(255,255,255,.75);
  margin-top: auto;
}

.footer-main {
  padding-block: var(--space-3xl);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
}

.footer-brand__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--c-white);
  margin-bottom: var(--space-sm);
}

.footer-brand__desc {
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  color: rgba(255,255,255,.6);
}

.footer-brand__contact { font-size: 0.85rem; display: flex; flex-direction: column; gap: 6px; }
.footer-brand__contact a { color: rgba(255,255,255,.7); transition: color var(--t-fast); }
.footer-brand__contact a:hover { color: var(--c-orange); }

.footer-col__title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-white);
  margin-bottom: var(--space-md);
}

.footer-col__links { display: flex; flex-direction: column; gap: 8px; }
.footer-col__links a {
  font-size: 0.875rem;
  color: rgba(255,255,255,.6);
  transition: color var(--t-fast);
}
.footer-col__links a:hover { color: var(--c-white); }
.footer-socials {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
  flex-wrap: wrap; /* utile si tu veux éviter les débordements sur mobile */
}

.footer-social {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, background 0.3s ease;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.15); /* léger contour */
}

.footer-social:hover {
  background: var(--c-green-mid);
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(26,107,74,0.3);
}

.footer-social img {
  width: 16px;
  height: 16px;
  filter: brightness(0) invert(1);
  transition: filter 0.3s ease;
}

.footer-social:hover img {
  filter: brightness(1) invert(0); /* icône devient foncée sur fond vert */
}


/*.footer-socials {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.footer-social {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--t-fast);
}

.footer-social:hover {
  background: var(--c-green-mid);
  transform: translateY(-2px);
}

.footer-social img { width: 16px; height: 16px; filter: brightness(0) invert(1); }*/

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-block: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,.45);
  flex-wrap: wrap;
  gap: var(--space-sm);
}

@media (max-width: 900px) {
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 560px) {
  .footer-main { grid-template-columns: 1fr; }
}

/* ── Alerts & Notifications ──────────────────────────────────── */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  font-size: 0.9rem;
  border: 1px solid transparent;
}

.alert--success {
  background: var(--c-green-light);
  color: var(--c-green);
  border-color: rgba(26,107,74,.2);
}

.alert--info {
  background: var(--c-blue-light);
  color: var(--c-blue);
  border-color: rgba(30,84,148,.2);
}

.alert--warning {
  background: #FEF7E0;
  color: #9A6800;
  border-color: rgba(154,104,0,.2);
}

/* ── Animations ──────────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.04); }
}

.animate-fade-up {
  opacity: 0;
  animation: fadeInUp 0.6s var(--ease) forwards;
}

.animate-pulse { animation: pulse 2s ease-in-out infinite; }

/* Délais en cascade */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

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

.text-center { text-align: center; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* ── Scroll to top ───────────────────────────────────────────── */
.scroll-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 44px; height: 44px;
  background: var(--c-navy);
  color: var(--c-white);
  border: none;
  border-radius: 50%;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: all var(--t-med);
  z-index: 500;
}

.scroll-top.visible {
  opacity: 1;
  pointer-events: all;
}

.scroll-top:hover {
  background: var(--c-green-mid);
  transform: translateY(-3px);
}

/* ── Google Fonts import ─────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;600;700;800&family=Inter:wght@400;500;600&display=swap');