/* ============================================
   Costruzioni Elettriche di Piffer
   Modern minimal stylesheet
   ============================================ */

/* --- Custom Properties --- */
:root {
  --color-navy: #1a2332;
  --color-navy-light: #243044;
  --color-white: #ffffff;
  --color-gray-50: #f8f9fa;
  --color-gray-100: #f1f3f5;
  --color-gray-200: #e9ecef;
  --color-gray-300: #dee2e6;
  --color-gray-400: #adb5bd;
  --color-gray-500: #6c757d;
  --color-gray-600: #495057;
  --color-gray-700: #343a40;
  --color-gray-800: #212529;
  --color-accent: #10b981;
  --color-accent-dark: #059669;
  --color-accent-light: #d1fae5;
  --color-whatsapp: #25d366;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  --max-width: 1200px;
  --nav-height: 72px;
}

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

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

@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;
  }
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-gray-700);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-dark);
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-gray-800);
  line-height: 1.2;
}

ul {
  list-style: none;
}

/* --- Utility --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-header h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: var(--space-xs);
}

.section-header p {
  color: var(--color-gray-500);
  font-size: 1.05rem;
  max-width: 500px;
  margin: 0 auto;
}

.section-divider {
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  border: none;
  border-radius: 2px;
  margin: var(--space-sm) auto var(--space-sm);
}

/* --- Skip to content --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 9999;
  background: var(--color-accent);
  color: var(--color-white);
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
  color: var(--color-white);
}

/* --- Fade-in animation --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.navbar--transparent {
  background: transparent;
}

.navbar--solid {
  background: rgba(26, 35, 50, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.15);
}

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

.navbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
}

.navbar__logo {
  height: 40px;
  width: auto;
}

.navbar__name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-white);
  white-space: nowrap;
}

.navbar__links {
  display: flex;
  gap: var(--space-lg);
}

.navbar__links a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

.navbar__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.navbar__links a:hover {
  color: var(--color-white);
}

.navbar__links a:hover::after,
.navbar__links a.active::after {
  width: 100%;
}

.navbar__links a.active {
  color: var(--color-white);
}

/* Hamburger */
.navbar__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  flex-direction: column;
  gap: 5px;
}

.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.navbar__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar__toggle.active span:nth-child(2) {
  opacity: 0;
}

.navbar__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  overflow: hidden;
  padding: var(--space-xl) var(--space-md);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(16, 185, 129, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero__icon {
  margin: 0 auto var(--space-md);
  width: 72px;
  height: 72px;
  color: var(--color-accent);
}

.hero__title {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-lg);
  font-weight: 400;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--color-accent);
  color: var(--color-white);
  padding: 0.85rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.hero__cta:hover {
  background: var(--color-accent-dark);
  color: var(--color-white);
  transform: translateY(-1px);
}

.hero__cta svg {
  width: 18px;
  height: 18px;
}

/* Hero scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.5);
  animation: bounce 2s ease infinite;
  transition: opacity var(--transition-base);
  z-index: 1;
}

.hero__scroll.hidden {
  opacity: 0;
  pointer-events: none;
}

.hero__scroll svg {
  width: 28px;
  height: 28px;
}

.hero__scroll:hover {
  color: rgba(255, 255, 255, 0.85);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-8px); }
  60% { transform: translateX(-50%) translateY(-4px); }
}

/* --- Trust Strip --- */
.trust {
  background: var(--color-navy-light);
  padding: var(--space-lg) 0;
}

.trust__grid {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.trust__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.trust__number {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.trust__label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 0.35rem;
}

/* --- Services --- */
.services {
  padding: var(--space-2xl) 0;
  background: var(--color-gray-50);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.services__card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.services__icon {
  width: 44px;
  height: 44px;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.services__icon svg {
  width: 100%;
  height: 100%;
}

.services__card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.services__card p {
  font-size: 0.9rem;
  color: var(--color-gray-500);
  line-height: 1.6;
}

/* --- Portfolio --- */
.portfolio {
  padding: var(--space-2xl) 0;
  background: var(--color-white);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.portfolio__card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  aspect-ratio: 4 / 3;
}

.portfolio__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.portfolio__card picture,
.portfolio__card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portfolio__card img {
  transition: transform var(--transition-slow);
}

.portfolio__card:hover img {
  transform: scale(1.05);
}

.portfolio__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 35, 50, 0.85) 0%, transparent 50%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-md);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.portfolio__card:hover .portfolio__overlay {
  opacity: 1;
}

.portfolio__overlay h3 {
  color: var(--color-white);
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.portfolio__overlay p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.85rem;
}

/* --- About --- */
.about {
  padding: var(--space-2xl) 0;
  background: var(--color-gray-50);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about__text h3 {
  font-size: 1.3rem;
  margin-bottom: var(--space-sm);
  color: var(--color-gray-800);
}

.about__text p {
  color: var(--color-gray-600);
  line-height: 1.8;
  margin-bottom: var(--space-sm);
}

.about__highlight {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-accent);
}

.about__highlight p {
  font-size: 1.1rem;
  color: var(--color-gray-700);
  font-style: italic;
  line-height: 1.7;
  margin: 0;
}

/* --- Contact --- */
.contact {
  padding: var(--space-2xl) 0;
  background: var(--color-white);
}

.contact__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  max-width: 900px;
  margin: 0 auto;
}

.contact__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  text-decoration: none;
  color: var(--color-gray-700);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.contact__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
  color: var(--color-gray-700);
}

.contact__card--whatsapp:hover {
  border-color: var(--color-whatsapp);
}

.contact__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-sm);
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.contact__card--whatsapp .contact__icon {
  background: #dcfce7;
  color: var(--color-whatsapp);
}

.contact__icon svg {
  width: 22px;
  height: 22px;
}

.contact__card h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.contact__card p {
  font-size: 0.9rem;
  color: var(--color-gray-500);
}

.contact__actions {
  display: flex;
  gap: 0.5rem;
  margin-top: var(--space-sm);
  width: 100%;
}

.contact__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  flex: 1;
  padding: 0.55rem 0.75rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.contact__btn svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.contact__btn--call {
  background: var(--color-accent);
  color: var(--color-white);
}

.contact__btn--call:hover {
  background: var(--color-accent-dark);
  color: var(--color-white);
  transform: translateY(-1px);
}

.contact__btn--wa {
  background: var(--color-whatsapp);
  color: var(--color-white);
}

.contact__btn--wa:hover {
  background: #1da851;
  color: var(--color-white);
  transform: translateY(-1px);
}

/* --- Footer --- */
.footer {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer__col h4 {
  color: var(--color-white);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.footer__col p,
.footer__col a {
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
}

.footer__col a:hover {
  color: var(--color-accent);
}

.footer__whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-whatsapp);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

.footer__whatsapp:hover {
  color: #22c55e;
}

.footer__whatsapp svg {
  width: 16px;
  height: 16px;
}

.footer__map-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-accent);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.footer__map-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.footer__map-link:hover {
  color: var(--color-accent-dark);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer__bottom a {
  color: rgba(255, 255, 255, 0.5);
}

.footer__bottom a:hover {
  color: var(--color-accent);
}

/* --- Lightbox --- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  padding: var(--space-lg);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox__content {
  position: relative;
  max-width: 900px;
  width: 100%;
  text-align: center;
}

.lightbox__img {
  max-width: 100%;
  max-height: 75vh;
  border-radius: var(--radius-md);
  object-fit: contain;
  margin: 0 auto;
}

.lightbox__caption {
  margin-top: var(--space-md);
}

.lightbox__caption h3 {
  color: var(--color-white);
  font-size: 1.3rem;
  margin-bottom: 0.35rem;
}

.lightbox__caption p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.95rem;
}

.lightbox__close {
  position: absolute;
  top: -48px;
  right: 0;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  padding: var(--space-xs);
  transition: color var(--transition-fast);
}

.lightbox__close:hover {
  color: var(--color-white);
}

.lightbox__close svg {
  width: 28px;
  height: 28px;
}

/* Lightbox navigation arrows */
.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  padding: 0.75rem;
  border-radius: 50%;
  transition: background var(--transition-fast), color var(--transition-fast);
  z-index: 1;
}

.lightbox__nav:hover {
  background: rgba(255, 255, 255, 0.2);
  color: var(--color-white);
}

.lightbox__nav svg {
  width: 28px;
  height: 28px;
}

.lightbox__nav--prev {
  left: -60px;
}

.lightbox__nav--next {
  right: -60px;
}

/* --- Cookie Banner --- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1500;
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.85);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  font-size: 0.85rem;
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.2);
  transform: translateY(100%);
  transition: transform var(--transition-base);
}

.cookie-banner.visible {
  transform: translateY(0);
}

.cookie-banner a {
  color: var(--color-accent);
  text-decoration: underline;
}

.cookie-banner__actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.cookie-banner__accept {
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition-fast);
}

.cookie-banner__accept:hover {
  background: var(--color-accent-dark);
}

.cookie-banner__reject {
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.cookie-banner__reject:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
}

/* --- Floating WhatsApp FAB --- */
.fab-whatsapp {
  position: fixed;
  bottom: var(--space-md);
  right: var(--space-md);
  z-index: 1400;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-whatsapp);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  opacity: 0;
  transform: scale(0.8);
  visibility: hidden;
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base), background var(--transition-fast);
  text-decoration: none;
}

.fab-whatsapp.visible {
  opacity: 1;
  transform: scale(1);
  visibility: visible;
}

.fab-whatsapp:hover {
  background: #1da851;
  color: var(--color-white);
  transform: scale(1.08);
}

.fab-whatsapp svg {
  width: 28px;
  height: 28px;
}

/* --- Back to top --- */
.back-to-top {
  position: fixed;
  bottom: var(--space-md);
  right: calc(var(--space-md) + 56px + var(--space-sm));
  z-index: 1400;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.7);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(8px);
  visibility: hidden;
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base), color var(--transition-fast);
}

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

.back-to-top:hover {
  color: var(--color-white);
}

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

/* --- Responsive --- */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .about__grid {
    gap: var(--space-lg);
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  /* Mobile nav */
  .navbar__toggle {
    display: flex;
  }

  .navbar__links {
    position: absolute;
    top: var(--nav-height);
    right: var(--space-md);
    background: rgba(26, 35, 50, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-xs) 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
    min-width: 180px;
  }

  .navbar__links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .navbar__links a {
    padding: 0.75rem var(--space-md);
    font-size: 0.95rem;
    text-align: left;
  }

  .navbar__links a::after {
    display: none;
  }

  /* Sections */
  .trust__grid {
    gap: var(--space-lg);
  }

  .services__grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .portfolio__grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  /* Show portfolio overlay on touch devices */
  .portfolio__overlay {
    opacity: 1;
    background: linear-gradient(to top, rgba(26, 35, 50, 0.75) 0%, transparent 60%);
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .footer__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer__map-link {
    justify-content: center;
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-xs);
    text-align: center;
  }

  .cookie-banner {
    flex-direction: column;
    text-align: center;
    gap: var(--space-sm);
  }

  .lightbox__close {
    top: -40px;
    right: 0;
  }

  .lightbox__nav--prev {
    left: 0;
    top: auto;
    bottom: -56px;
    transform: none;
  }

  .lightbox__nav--next {
    right: 0;
    top: auto;
    bottom: -56px;
    transform: none;
  }

  .navbar__links a.active {
    color: var(--color-accent);
  }

  .fab-whatsapp {
    bottom: var(--space-sm);
    right: var(--space-sm);
    width: 50px;
    height: 50px;
  }

  .fab-whatsapp svg {
    width: 24px;
    height: 24px;
  }

  .back-to-top {
    bottom: var(--space-sm);
    right: calc(var(--space-sm) + 50px + var(--space-xs));
    width: 40px;
    height: 40px;
  }
}

/* --- Policy page --- */
.policy {
  padding: calc(var(--nav-height) + var(--space-xl)) 0 var(--space-2xl);
}

.policy h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  text-align: center;
  margin-bottom: var(--space-lg);
}

.policy h2 {
  font-size: 1.3rem;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.policy p,
.policy li {
  line-height: 1.8;
  color: var(--color-gray-600);
  margin-bottom: var(--space-sm);
}

.policy ul {
  list-style: disc;
  padding-left: var(--space-md);
  margin-bottom: var(--space-sm);
}

.policy a {
  word-break: break-all;
}

.policy strong {
  color: var(--color-gray-800);
}

/* --- 404 page --- */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl);
}

.error-page h1 {
  font-size: clamp(4rem, 15vw, 8rem);
  color: var(--color-gray-200);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.error-page p {
  font-size: 1.1rem;
  color: var(--color-gray-500);
  margin-bottom: var(--space-lg);
}

.error-page a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--color-accent);
  color: var(--color-white);
  padding: 0.75rem 1.75rem;
  border-radius: 50px;
  font-weight: 600;
  transition: background var(--transition-fast);
}

.error-page a:hover {
  background: var(--color-accent-dark);
  color: var(--color-white);
}