/* ==========================================================================
   An-Nour Hemodialysis Center — Stylesheet
   RTL/LTR aware · Firefox / Chrome / Mobile compatible
   ========================================================================== */

:root {
  --primary: #0e7c86;
  --primary-dark: #0a5c66;
  --primary-deep: #073f47;
  --accent: #22b8c9;
  --accent-soft: #e3f6f8;
  --bg: #f4fafb;
  --ink: #173b43;
  --muted: #5b7278;
  --line: #d9e9ec;
  --white: #ffffff;
  --whatsapp: #25d366;
  --whatsapp-dark: #1eb858;
  --shadow-sm: 0 6px 18px rgba(10, 92, 102, 0.08);
  --shadow-md: 0 14px 34px rgba(10, 92, 102, 0.14);
  --radius: 22px;
  --radius-sm: 14px;
  --font-ar: 'Cairo', sans-serif;
  --font-latin: 'Poppins', sans-serif;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-latin);
  background: var(--white);
  color: var(--ink);
  line-height: 1.7;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html[dir="rtl"] body {
  font-family: var(--font-ar);
}

img,
svg {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

iframe {
  border: 0;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Layout helpers ---------- */
.container {
  width: min(1200px, 92%);
  margin-inline: auto;
}

.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--bg);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 52px;
}

.section-kicker {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  padding: 6px 16px;
  border-radius: 999px;
}

html[dir="rtl"] .section-kicker {
  letter-spacing: 0;
}

.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  line-height: 1.3;
  margin: 14px 0 10px;
  color: var(--ink);
}

.section-subtitle {
  color: var(--muted);
  font-size: 1rem;
}

.section-text {
  color: var(--muted);
  margin-bottom: 14px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition),
    background var(--transition), color var(--transition);
}

.btn i {
  font-size: 1.05em;
}

.btn-primary {
  background: var(--white);
  color: var(--primary-deep);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.18);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.65);
  color: var(--white);
}

.btn-ghost:hover {
  background: var(--white);
  color: var(--primary-deep);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: var(--whatsapp);
  color: #063a1b;
}

.btn-whatsapp:hover {
  background: var(--whatsapp-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(37, 211, 102, 0.35);
}

.btn-outline {
  align-self: flex-start;
  border: 2px solid var(--line);
  color: var(--primary);
  background: transparent;
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
}

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

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  inset-inline-start: 16px;
  top: -60px;
  z-index: 3000;
  background: var(--primary-deep);
  color: var(--white);
  padding: 10px 18px;
  border-radius: 0 0 12px 12px;
  transition: top var(--transition);
}

.skip-link:focus {
  top: 0;
}

/* ---------- Load error banner ---------- */
.load-error {
  background: #b91c1c;
  color: #ffffff;
  padding: 12px 20px;
  text-align: center;
  font-size: 0.9rem;
}

/* ---------- Header / Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.site-header.scrolled {
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 78px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: var(--white);
  font-size: 1.3rem;
  background: linear-gradient(135deg, var(--primary-dark), var(--accent));
  box-shadow: 0 8px 18px rgba(14, 124, 134, 0.28);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-name {
  font-weight: 800;
  font-size: 1.12rem;
  color: var(--ink);
}

.brand-tag {
  font-size: 0.75rem;
  color: var(--muted);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 10px 14px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--ink);
  transition: color var(--transition);
}

.nav-link::after {
  content: "";
  position: absolute;
  inset-inline-start: 14px;
  inset-inline-end: 14px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

.lang-switch {
  display: flex;
  gap: 4px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
}

.lang-btn {
  min-width: 34px;
  height: 32px;
  padding: 0 10px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--muted);
  transition: background var(--transition), color var(--transition);
}

.lang-btn.active {
  background: var(--primary);
  color: var(--white);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 12px;
  background: var(--bg);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(7, 63, 71, 0.92) 0%, rgba(10, 92, 102, 0.88) 48%, rgba(34, 184, 201, 0.82) 100%),
    url("../img/1.jpg") center / cover no-repeat;
  padding: 110px 0 140px;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.hero::before {
  width: 420px;
  height: 420px;
  top: -160px;
  inset-inline-end: -120px;
}

.hero::after {
  width: 260px;
  height: 260px;
  bottom: -100px;
  inset-inline-start: -80px;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 44px;
  align-items: center;
  min-height: 520px;
}

.hero-kicker {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.28);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.25;
  font-weight: 800;
  margin: 18px 0 10px;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
  font-weight: 500;
  color: #d6f2f5;
}

.hero-text {
  max-width: 580px;
  color: #e4f7f9;
  margin: 16px 0 30px;
  font-size: 1.02rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-card .hero-actions {
  width: 100%;
  flex-direction: column;
}

.hero-card .btn {
  width: 100%;
  padding: 12px 20px;
  font-size: 0.9rem;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-card {
  position: relative;
  width: min(380px, 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  padding: 46px 30px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 32px;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.hero-card-icon {
  width: 150px;
  height: 150px;
  display: grid;
  place-items: center;
  font-size: 4.2rem;
  color: var(--white);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
}

.hero-card-badge {
  position: absolute;
  top: 22px;
  inset-inline-end: 22px;
  background: var(--whatsapp);
  color: #063a1b;
  font-weight: 800;
  font-size: 0.85rem;
  padding: 7px 16px;
  border-radius: 999px;
}

.hero-pulse {
  position: absolute;
  inset: 0;
  border-radius: 32px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  animation: heroPulse 3s ease-out infinite;
}

@keyframes heroPulse {
  0% {
    transform: scale(1);
    opacity: 0.7;
  }
  100% {
    transform: scale(1.07);
    opacity: 0;
  }
}

/* ---------- Stats ---------- */
.stats {
  position: relative;
  z-index: 2;
  margin-top: -70px;
  padding: 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 38px 34px;
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.stat-label {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 4px;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
}

.media-card {
  position: relative;
  min-height: 440px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 30px;
  background: linear-gradient(145deg, var(--primary-dark), var(--accent));
  box-shadow: var(--shadow-md);
}

.media-card > i {
  font-size: 7rem;
  color: rgba(255, 255, 255, 0.9);
  filter: drop-shadow(0 12px 22px rgba(0, 0, 0, 0.2));
}

.media-chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 9px;
  background: var(--white);
  color: var(--ink);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 12px 18px;
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
}

.media-chip i {
  color: var(--primary);
}

.chip-top {
  top: 24px;
  inset-inline-start: 24px;
}

.chip-bottom {
  bottom: 24px;
  inset-inline-end: 24px;
}

.about-subtitle {
  color: var(--primary);
  font-weight: 600;
  margin: 4px 0 16px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.feature-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}

.feature-icon {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: var(--accent-soft);
  color: var(--primary);
  font-size: 1.15rem;
}

.feature-item h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 3px;
}

.feature-item p {
  font-size: 0.88rem;
  color: var(--muted);
}

/* ---------- Service / Doctor cards ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.card-icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 17px;
  margin-bottom: 20px;
  color: var(--white);
  font-size: 1.5rem;
  background: linear-gradient(135deg, var(--primary-dark), var(--accent));
  box-shadow: 0 10px 20px rgba(14, 124, 134, 0.24);
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}

.card .card-short {
  flex-grow: 1;
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

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

.doctor-card {
  align-items: center;
  text-align: center;
}

.doctor-avatar {
  width: 86px;
  height: 86px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  margin-bottom: 18px;
  color: var(--white);
  font-size: 1.7rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-dark), var(--accent));
  box-shadow: 0 10px 22px rgba(14, 124, 134, 0.26);
}

.doctor-specialty {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  margin: 4px 0 10px;
}

/* ---------- Rendez-vous card ---------- */
.rdv-card {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 52px 54px;
  border-radius: 30px;
  color: var(--white);
  background: linear-gradient(120deg, var(--primary-deep), var(--primary-dark) 55%, var(--accent));
  box-shadow: var(--shadow-md);
}

.rdv-content {
  max-width: 680px;
}

.rdv-title {
  font-size: clamp(1.6rem, 3.2vw, 2.3rem);
  font-weight: 800;
  margin: 14px 0 12px;
}

.rdv-text {
  color: #d9f1f4;
  margin-bottom: 26px;
}

.rdv-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.rdv-note {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #cfe9ec;
  font-size: 0.9rem;
}

.rdv-icon {
  flex: 0 0 auto;
  font-size: 7rem;
  color: rgba(255, 255, 255, 0.16);
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 34px;
  align-items: start;
}

.contact-info {
  display: grid;
  gap: 16px;
}

.info-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.info-icon {
  width: 50px;
  height: 50px;
  flex: 0 0 50px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--primary);
  font-size: 1.2rem;
}

.info-body h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.info-body p,
.info-body .info-link {
  color: var(--muted);
  font-size: 0.95rem;
}

.info-body .info-link {
  display: block;
  transition: color var(--transition);
}

.info-body .info-link:hover {
  color: var(--primary);
}

.map-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.map-frame {
  height: 440px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.map-frame iframe {
  width: 100%;
  height: 100%;
  display: block;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--primary-deep);
  color: #cfe6ea;
  padding-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 44px;
  padding-bottom: 48px;
}

.brand-footer .brand-name {
  color: var(--white);
}

.brand-footer .brand-tag {
  color: #9ccbd1;
}

.footer-about {
  margin: 18px 0;
  color: #b7d9de;
  max-width: 360px;
  font-size: 0.94rem;
}

.footer-wa {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: var(--whatsapp);
  color: var(--white);
  font-size: 1.2rem;
  transition: transform var(--transition), background var(--transition);
}

.footer-wa:hover {
  background: var(--whatsapp-dark);
  transform: translateY(-3px);
}

.footer-col h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 18px;
}

.footer-links li a {
  display: inline-block;
  color: #b7d9de;
  padding: 6px 0;
  font-size: 0.94rem;
  transition: color var(--transition), transform var(--transition);
}

.footer-links li a:hover {
  color: var(--white);
  transform: translateX(4px);
}

html[dir="rtl"] .footer-links li a:hover {
  transform: translateX(-4px);
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  color: #b7d9de;
  font-size: 0.92rem;
}

.footer-contact li i {
  color: var(--accent);
  margin-top: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 18px 0;
}

.footer-bottom p {
  color: #9ccbd1;
  font-size: 0.85rem;
  text-align: center;
}

/* ---------- Modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
}

.modal.open {
  display: block;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7, 63, 71, 0.55);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  animation: fadeIn 0.25s ease;
}

.modal-dialog {
  position: relative;
  max-width: 640px;
  width: 92%;
  margin: 8vh auto;
  background: var(--white);
  border-radius: 26px;
  overflow: hidden;
  animation: slideUp 0.3s ease;
}

.modal-close {
  position: absolute;
  top: 14px;
  inset-inline-end: 14px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg);
  color: var(--ink);
  font-size: 1rem;
  display: grid;
  place-items: center;
  z-index: 2;
  transition: background var(--transition), color var(--transition);
}

.modal-close:hover {
  background: var(--primary);
  color: var(--white);
}

.modal-body {
  padding: 40px 38px;
}

.modal-head {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 22px;
}

.modal-icon {
  width: 68px;
  height: 68px;
  flex: 0 0 68px;
  display: grid;
  place-items: center;
  border-radius: 19px;
  color: var(--white);
  font-size: 1.8rem;
  background: linear-gradient(135deg, var(--primary-dark), var(--accent));
}

.modal-avatar {
  width: 68px;
  height: 68px;
  flex: 0 0 68px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--white);
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-dark), var(--accent));
}

.modal-title {
  font-size: 1.45rem;
  font-weight: 800;
  line-height: 1.3;
}

.modal-sub {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  margin-top: 4px;
}

.modal-desc {
  color: var(--muted);
  margin-bottom: 24px;
}

.modal-section-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--ink);
}

.modal-list {
  display: grid;
  gap: 10px;
}

.modal-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--muted);
  font-size: 0.95rem;
}

.modal-list li i {
  color: var(--primary);
  margin-top: 5px;
}

.modal-meta {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 16px;
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 8px;
}

.modal-meta i {
  color: var(--primary);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(26px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  bottom: 24px;
  inset-inline-end: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  font-size: 1rem;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition),
    visibility var(--transition), background var(--transition);
  z-index: 900;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-dark);
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 992px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero-content {
    max-width: 680px;
    margin-inline: auto;
  }

  .hero-text {
    margin-inline: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    margin-top: 8px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }

  .header-inner {
    min-height: 68px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    inset-inline: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    background: var(--white);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    padding: 16px 20px 20px;
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-link {
    display: block;
    padding: 12px 14px;
  }

  .nav-link::after {
    bottom: 6px;
  }

  .lang-switch {
    justify-content: center;
    margin-top: 8px;
  }

  .hero {
    padding: 80px 0 120px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    padding: 30px 24px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .cards-grid,
  .doctors-grid {
    grid-template-columns: 1fr;
  }

  .rdv-card {
    flex-direction: column;
    align-items: stretch;
    padding: 34px 28px;
    text-align: center;
  }

  .rdv-actions {
    flex-direction: column;
    align-items: center;
  }

  .rdv-icon {
    display: none;
  }

  .map-frame {
    height: 330px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .modal-dialog {
    margin: 4vh auto;
  }

  .modal-body {
    padding: 32px 24px;
  }
}

@media (max-width: 420px) {
  .btn {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
  }
}

/* ---------- Accessibility ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}