:root {
  --bg: #ffffff;
  --bg-soft: #f3f7fc;
  --bg-alt: #e8f0fa;
  --text: #0f2d52;
  --text-muted: #5a6f85;
  --primary: #1a4f94;
  --primary-dark: #0c3566;
  --primary-light: #2870c0;
  --accent: #d91f1f;
  --accent-light: #3fa832;
  --footer-bg: #0a2d52;
  --footer-accent: #d91f1f;
  --border: #d8e4de;
  --shadow: 0 12px 32px rgba(26, 79, 148, 0.12);
  --shadow-lg: 0 20px 48px rgba(13, 40, 64, 0.18);
  --radius: 14px;
  --radius-lg: 20px;
  --container: 1120px;
  --header-height: 80px;
  --whatsapp: #25d366;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

html[lang="en"] body {
  font-family: "Inter", "Cairo", sans-serif;
}

body {
  margin: 0;
  font-family: "Cairo", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.section {
  padding: 5rem 0;
}

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

.section-heading {
  margin-bottom: 2.5rem;
}

.section-heading--center {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: 3rem;
}

.section-heading h2 {
  margin: 0.5rem 0;
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  color: var(--primary-dark);
}

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

.section-tag {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  background: rgba(26, 79, 148, 0.1);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
}

.section-eyebrow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-line {
  width: 40px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent-light);
  font-weight: 600;
  font-size: 0.9rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  border: 2px solid transparent;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), color var(--transition),
    border-color var(--transition), box-shadow var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 20px rgba(217, 31, 31, 0.35);
}

.btn-primary:hover {
  background: var(--accent-light);
}

.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.85);
  color: #fff;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-light {
  background: #fff;
  color: var(--accent);
  box-shadow: var(--shadow);
}

.btn-light:hover {
  background: #f8f8f8;
}

.btn-block {
  width: 100%;
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-height);
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(10, 45, 82, 0.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
}

.brand-logo {
  height: 56px;
  width: 56px;
  max-width: 56px;
  flex-shrink: 0;
  object-fit: cover;
  object-position: 88% 30%;
  background: transparent;
  filter: drop-shadow(0 3px 10px rgba(0, 0, 0, 0.28));
}

.brand-text {
  color: #fff;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  color: #fff;
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.92rem;
  transition: background var(--transition), color var(--transition);
}

.nav-links a:hover {
  background: rgba(255, 255, 255, 0.1);
}

.lang-toggle {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  padding: 0.45rem 0.9rem;
  border-radius: 8px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background var(--transition);
}

.lang-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-dark);
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    135deg,
    rgba(26, 79, 148, 0.35) 0%,
    rgba(40, 112, 192, 0.22) 45%,
    rgba(12, 53, 102, 0.4) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  max-width: 820px;
  padding: 3rem 0 5rem;
}

.hero-content h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
}

.hero-subtitle {
  margin: 0 0 1rem;
  font-size: clamp(1.1rem, 2.5vw, 1.45rem);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
}

.hero-description {
  margin: 0 0 2rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.05rem;
  max-width: 680px;
  margin-inline: auto;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.8rem;
  animation: bounce 2s infinite;
}

.scroll-mouse {
  width: 22px;
  height: 34px;
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-radius: 12px;
  position: relative;
}

.scroll-mouse::after {
  content: "";
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 2px;
  animation: scroll-dot 2s infinite;
}

@keyframes bounce {
  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(6px);
  }
}

@keyframes scroll-dot {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(10px);
  }
}

/* Why Section */
.why-section {
  background: var(--bg-soft);
  padding: 4.5rem 0;
  border-bottom: 3px solid var(--accent);
}

.why-grid {
  display: grid;
  gap: 1.5rem;
}

.why-card {
  text-align: center;
  padding: 1.5rem 1rem;
}

.why-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: grid;
  place-items: center;
}

.why-icon svg {
  width: 28px;
  height: 28px;
}

.why-card h3 {
  margin: 0 0 0.5rem;
  color: var(--primary-dark);
  font-size: 1.1rem;
}

.why-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Products */
.products-grid {
  display: grid;
  gap: 1.5rem;
}

.product-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(48px);
  transition:
    opacity 0.65s ease,
    transform 0.65s ease,
    box-shadow var(--transition);
  transition-delay: calc(var(--card-index, 0) * 0.14s);
}

.product-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.product-card.is-visible:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-card__media img {
  transform: scale(1.05);
}

.product-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13, 40, 64, 0.9) 0%, transparent 60%);
}

.product-card__badge {
  position: absolute;
  bottom: 4.5rem;
  inset-inline-start: 1.25rem;
  background: var(--accent);
  color: #fff;
  padding: 0.3rem 0.75rem;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  z-index: 1;
}

.product-card__title {
  position: absolute;
  bottom: 1.25rem;
  inset-inline: 1.25rem;
  margin: 0;
  color: #fff;
  font-size: 1.35rem;
  z-index: 1;
}

.product-card__desc {
  margin: 0;
  padding: 1.1rem 1.25rem 1.35rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* About */
.about-layout {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.about-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.about-lead {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary-dark);
  margin: 0 0 1rem;
}

.about-text {
  color: var(--text-muted);
  margin: 0 0 1.5rem;
}

.about-cards {
  display: grid;
  gap: 1rem;
}

.about-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  border-inline-start: 4px solid var(--accent);
}

.about-card h3 {
  margin: 0 0 0.5rem;
  color: var(--primary);
  font-size: 1.05rem;
}

.about-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Values */
.values-section {
  position: relative;
  background:
    radial-gradient(circle at 10% 20%, rgba(26, 79, 148, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 90% 80%, rgba(217, 31, 31, 0.06) 0%, transparent 40%),
    linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 100%);
  overflow: hidden;
}

.values-section::before {
  content: "";
  position: absolute;
  inset-inline-end: -120px;
  top: 10%;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(63, 168, 50, 0.07);
  filter: blur(40px);
  pointer-events: none;
}

.values-grid {
  display: grid;
  gap: 1.5rem;
  position: relative;
  z-index: 1;
}

.value-card {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem 1.75rem;
  text-align: center;
  overflow: hidden;
  cursor: default;
  opacity: 0;
  transform: translateY(40px) scale(0.97);
  transition:
    opacity 0.6s ease,
    transform 0.6s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.3s ease,
    box-shadow 0.35s ease;
  transition-delay: calc(var(--card-index, 0) * 0.12s);
  box-shadow: 0 4px 20px rgba(26, 79, 148, 0.06);
}

.value-card.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.value-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--value-accent, var(--primary)) 8%, transparent) 0%,
    transparent 55%
  );
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.value-card:hover,
.value-card:focus-visible {
  border-color: color-mix(in srgb, var(--value-accent, var(--primary)) 45%, var(--border));
  box-shadow:
    0 16px 40px rgba(26, 79, 148, 0.14),
    0 0 0 1px color-mix(in srgb, var(--value-accent, var(--primary)) 12%, transparent);
  transform: translateY(-8px) scale(1.02);
  outline: none;
}

.value-card.is-visible:hover,
.value-card.is-visible:focus-visible {
  transform: translateY(-8px) scale(1.02);
}

.value-card:hover::before,
.value-card:focus-visible::before {
  opacity: 1;
}

.value-card__number {
  position: absolute;
  top: 1rem;
  inset-inline-start: 1.25rem;
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  color: color-mix(in srgb, var(--value-accent, var(--primary)) 14%, transparent);
  transition: color 0.3s ease, transform 0.3s ease;
  user-select: none;
}

.value-card:hover .value-card__number,
.value-card:focus-visible .value-card__number {
  color: color-mix(in srgb, var(--value-accent, var(--primary)) 28%, transparent);
  transform: scale(1.08);
}

.value-card__icon-wrap {
  width: 76px;
  height: 76px;
  margin: 0.5rem auto 1.25rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--value-accent, var(--primary)) 18%, #fff) 0%,
    color-mix(in srgb, var(--value-accent, var(--primary)) 8%, #fff) 100%
  );
  border: 2px solid color-mix(in srgb, var(--value-accent, var(--primary)) 22%, transparent);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s ease;
}

.value-card:hover .value-card__icon-wrap,
.value-card:focus-visible .value-card__icon-wrap {
  transform: scale(1.1) rotate(-4deg);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--value-accent, var(--primary)) 25%, transparent);
}

.value-icon {
  width: 34px;
  height: 34px;
  color: var(--value-accent, var(--primary));
  transition: transform 0.35s ease;
}

.value-icon svg {
  width: 100%;
  height: 100%;
}

.value-card:hover .value-icon,
.value-card:focus-visible .value-icon {
  transform: scale(1.08);
}

.value-card h3 {
  margin: 0 0 0.65rem;
  color: var(--primary-dark);
  font-size: 1.12rem;
  font-weight: 700;
  transition: color 0.3s ease;
}

.value-card:hover h3,
.value-card:focus-visible h3 {
  color: var(--value-accent, var(--primary));
}

.value-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.75;
}

.value-card__line {
  display: block;
  width: 0;
  height: 3px;
  margin: 1.25rem auto 0;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    var(--value-accent, var(--primary)),
    color-mix(in srgb, var(--value-accent, var(--primary)) 60%, #fff)
  );
  transition: width 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.value-card:hover .value-card__line,
.value-card:focus-visible .value-card__line,
.value-card.is-visible .value-card__line {
  width: 48px;
}

.value-card.is-visible .value-card__line {
  transition-delay: calc(var(--card-index, 0) * 0.12s + 0.35s);
}

/* CTA */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, var(--footer-bg) 100%);
  padding: 4rem 0;
  border-block: 3px solid var(--accent);
}

.cta-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.cta-content {
  flex: 1;
  min-width: 260px;
  color: #fff;
}

.cta-content h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.cta-content p {
  margin: 0;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
}

.cta-btn {
  flex-shrink: 0;
  white-space: nowrap;
}

/* Contact */
.contact-layout {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.contact-form-card,
.contact-info-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.contact-form-card h3,
.contact-info-card h3 {
  margin: 0 0 1.5rem;
  color: var(--primary-dark);
  font-size: 1.2rem;
}

.form-group {
  margin-bottom: 1.1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 600;
  color: var(--primary-dark);
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.95rem;
  background: #fff;
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 79, 148, 0.15);
}

.form-group input.is-invalid,
.form-group textarea.is-invalid {
  border-color: #d64545;
}

.form-error {
  display: block;
  margin-top: 0.35rem;
  color: #d64545;
  font-size: 0.82rem;
}

.contact-info-list li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
}

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

.contact-info-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.contact-info-icon svg {
  width: 18px;
  height: 18px;
}

.contact-info-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.15rem;
}

.contact-info-list a {
  color: var(--primary);
  font-weight: 600;
  transition: color var(--transition);
}

[data-company="phone-link"],
[data-company="email-link"],
[data-company="website-link"] {
  direction: ltr;
  unicode-bidi: isolate;
  display: inline-block;
}

.contact-info-list a:hover {
  color: var(--accent);
}

.contact-info-list a.is-pending {
  color: var(--text-muted);
  font-weight: 500;
  cursor: default;
  pointer-events: none;
}

.map-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.map-card iframe {
  width: 100%;
  height: 360px;
  border: 0;
  display: block;
}

/* Footer */
.site-footer {
  background: var(--footer-bg);
  color: rgba(255, 255, 255, 0.85);
}

.footer-grid {
  display: grid;
  gap: 2.5rem;
  padding: 3.5rem 0 2rem;
}

.footer-logo {
  height: 104px;
  width: auto;
  max-width: 320px;
  margin-bottom: 1rem;
  object-fit: contain;
  filter: drop-shadow(0 2px 10px rgba(0, 0, 0, 0.35));
}

.footer-brand p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.7);
}

.footer-links h3,
.footer-contact h3 {
  color: #fff;
  margin: 0 0 1rem;
  font-size: 1rem;
}

.footer-links ul li,
.footer-contact ul li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.92rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--accent-light);
}

.footer-contact a,
.footer-contact span {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.92rem;
}

.footer-bottom {
  background: var(--accent);
  padding: 1rem 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  position: relative;
}

.footer-bottom-text {
  flex: 1;
  text-align: center;
  color: #fff;
  font-size: 0.88rem;
}

.footer-bottom-text p {
  margin: 0.15rem 0;
}

.footer-back-top {
  position: static;
  opacity: 1;
  visibility: visible;
  transform: none;
  background: rgba(255, 255, 255, 0.2);
}

.footer-back-top:hover {
  background: rgba(255, 255, 255, 0.35);
}

/* Floating widgets */
.float-widgets {
  position: fixed;
  bottom: 1.5rem;
  inset-inline-end: 1.5rem;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.whatsapp-tooltip {
  background: #fff;
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
  font-size: 0.82rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.whatsapp-tooltip strong {
  color: var(--primary-dark);
}

.whatsapp-float {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--whatsapp);
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
  transition: transform var(--transition), box-shadow var(--transition);
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.55);
}

.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  inset-inline-start: 1.5rem;
  z-index: 90;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  display: grid;
  place-items: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition),
    background var(--transition);
  box-shadow: 0 4px 16px rgba(217, 31, 31, 0.4);
}

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

.back-to-top:hover {
  background: var(--accent-light);
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

/* Responsive */
@media (min-width: 600px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 821px) {
  .nav-toggle {
    display: none;
  }

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

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

  .about-layout {
    grid-template-columns: 1fr 1.1fr;
  }

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

  .contact-layout {
    grid-template-columns: 1.2fr 1fr;
  }
}

@media (min-width: 1100px) {
  .products-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

@media (max-width: 820px) {
  .brand-logo {
    height: 48px;
    width: 48px;
    max-width: 48px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    inset-inline: 0;
    background: rgba(10, 45, 82, 0.98);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    gap: 0.25rem;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
  }

  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links a,
  .nav-links .lang-toggle {
    display: block;
    width: 100%;
    text-align: center;
    padding: 0.75rem;
  }

  .cta-inner {
    flex-direction: column;
    text-align: center;
  }

  .cta-content p {
    margin-inline: auto;
  }

  .whatsapp-tooltip {
    display: none;
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .product-card {
    opacity: 1;
    transform: none;
  }

  .value-card {
    opacity: 1;
    transform: none;
  }

  .value-card__line {
    width: 48px;
  }
}