/* components.css — MBS IoT page-specific styles */

/* ===== SKIP LINK ===== */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  z-index: 200;
  text-decoration: none;
  transition: top 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.skip-link:focus { top: var(--space-4); }

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: oklch(from var(--color-bg) l c h / 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid oklch(from var(--color-border) l c h / 0.5);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.header--hidden { transform: translateY(-100%); }
.header--scrolled { box-shadow: var(--shadow-md); }

.header__inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}
.logo-img {
  flex-shrink: 0;
  height: 36px;
  width: auto;
}
.logo-img--dark { display: none; }
.logo-img--light { display: block; }
[data-theme="dark"] .logo-img--dark { display: block; }
[data-theme="dark"] .logo-img--light { display: none; }
.logo-text__name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.logo-text__tagline {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 400;
  letter-spacing: 0.04em;
}

.header__nav {
  display: none;
  align-items: center;
  gap: var(--space-6);
}
@media (min-width: 768px) {
  .header__nav { display: flex; }
}
.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-interactive);
  padding: var(--space-1) 0;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-interactive);
}
.nav-link:hover { color: var(--color-text); }
.nav-link:hover::after { width: 100%; }

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}
.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-dynamic);
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 36px;
  height: 36px;
  gap: 5px;
  border-radius: var(--radius-md);
  transition: background var(--transition-interactive);
}
.hamburger:hover { background: var(--color-surface-dynamic); }
@media (min-width: 768px) {
  .hamburger { display: none; }
}
.hamburger__line {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.hamburger--active .hamburger__line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger--active .hamburger__line:nth-child(2) { opacity: 0; }
.hamburger--active .hamburger__line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: oklch(from var(--color-bg) l c h / 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.mobile-nav--open {
  opacity: 1;
  pointer-events: auto;
}
.mobile-nav__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
}
.mobile-nav__link {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.mobile-nav__link:hover,
.mobile-nav__link:active { color: var(--color-primary); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition-interactive),
              color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              transform var(--transition-interactive);
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border: none;
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--color-primary-glow);
}
.btn--primary:active {
  background: var(--color-primary-active);
  transform: translateY(0);
}
.btn--full {
  width: 100%;
  justify-content: center;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    oklch(from var(--color-bg) l c h / 0.7) 0%,
    oklch(from var(--color-bg) l c h / 0.85) 50%,
    var(--color-bg) 100%
  );
}
[data-theme="light"] .hero__overlay {
  background: linear-gradient(
    180deg,
    oklch(from var(--color-bg) l c h / 0.85) 0%,
    oklch(from var(--color-bg) l c h / 0.92) 50%,
    var(--color-bg) 100%
  );
}
.hero__grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(oklch(from var(--color-primary) l c h / 0.06) 1px, transparent 1px),
    linear-gradient(90deg, oklch(from var(--color-primary) l c h / 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-32) var(--space-4) var(--space-16);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-primary);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary-highlight);
  border: 1px solid oklch(from var(--color-primary) l c h / 0.2);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.hero__badge-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
  color: var(--color-text);
}
.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 55ch;
  margin-bottom: var(--space-8);
  line-height: 1.6;
}
.hero__cta {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-sm);
}

/* ===== SECTIONS ===== */
.section {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
}
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}
.section__header {
  margin-bottom: var(--space-12);
}
.section__label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}
.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.section__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 55ch;
  margin-top: var(--space-4);
  line-height: 1.6;
}

/* ===== SERVICE CARDS ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
  gap: var(--space-6);
}
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}
.service-card:hover {
  border-color: oklch(from var(--color-primary) l c h / 0.4);
  box-shadow: 0 0 24px var(--color-primary-glow), var(--shadow-md);
}
.service-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-highlight);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
}
.service-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}
.service-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== TECNOLOGIE ===== */
.tecnologie {
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-surface);
}
.tech-marquee {
  overflow: hidden;
  position: relative;
}
.tech-marquee::before,
.tech-marquee::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 60px;
  z-index: 2;
  pointer-events: none;
}
.tech-marquee::before {
  left: 0;
  background: linear-gradient(90deg, var(--color-surface), transparent);
}
.tech-marquee::after {
  right: 0;
  background: linear-gradient(270deg, var(--color-surface), transparent);
}
.tech-track {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}
.tech-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  padding: var(--space-3) var(--space-5);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: border-color var(--transition-interactive), background var(--transition-interactive);
}
.tech-item:hover {
  border-color: oklch(from var(--color-primary) l c h / 0.3);
  background: var(--color-primary-highlight);
}
.tech-item__dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  flex-shrink: 0;
}

/* ===== REFERENZE ===== */
.ref-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: var(--space-6);
}
.ref-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
  position: relative;
  overflow: hidden;
}
.ref-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
  opacity: 0;
  transition: opacity var(--transition-interactive);
}
.ref-card:hover {
  border-color: oklch(from var(--color-primary) l c h / 0.3);
  box-shadow: 0 0 24px var(--color-primary-glow), var(--shadow-md);
}
.ref-card:hover::before { opacity: 1; }

.ref-card__number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: oklch(from var(--color-primary) l c h / 0.2);
  margin-bottom: var(--space-4);
  line-height: 1;
}
.ref-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.ref-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== CONTATTI ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}
@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }
}

.contact-info__person {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-divider);
}
.contact-info__name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}
.contact-info__company {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.contact-info__details {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
a.contact-detail:hover { color: var(--color-primary); }
.contact-detail svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-primary);
}

/* Contact Form */
.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.form-group {
  margin-bottom: var(--space-5);
}
.form-group label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-2);
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-faint);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
  outline: none;
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--color-divider);
  padding: var(--space-6) 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.footer__copy {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.footer__pplx {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.footer__pplx:hover { color: var(--color-text-muted); }

/* ===== SCROLL ANIMATIONS ===== */
.fade-in { opacity: 1; }

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 30%;
  }
}

@keyframes reveal-fade {
  to { opacity: 1; }
}

/* Fallback for browsers without scroll-driven animations */
.fade-in.is-visible { opacity: 1; }

/* ===== FORM SUCCESS STATE ===== */
.form-success {
  text-align: center;
  padding: var(--space-8) var(--space-4);
}
.form-success__icon {
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.form-success__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.form-success__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 767px) {
  .hero__content {
    padding-top: var(--space-24);
  }
  .hero__title {
    font-size: var(--text-3xl);
  }
  .hero__subtitle {
    font-size: var(--text-base);
  }
  .section__title {
    font-size: var(--text-xl);
  }
  .footer__inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

@media (min-width: 1024px) {
  .header__inner {
    padding: var(--space-4) var(--space-8);
  }
  .container {
    padding-inline: var(--space-8);
  }
}