/* ==========================================================================
   NEXTLEVEL - SYSTEM ARCHITECTURE STYLESHEET
   Design System: Dark Premium Aesthetic (Sfondo Nero Puro #000000)
   ========================================================================== */

/* 1. CUSTOM PROPERTIES & TOKENS
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette */
  --color-bg-pure: #000000;       /* Sfondo assoluto per integrare perfettamente il logo */
  --color-bg-surface: #0a0a0c;    /* Superfici primarie leggermente elevate */
  --color-bg-card: #121215;       /* Carte e moduli interattivi */
  --color-bg-card-hover: #1a1a1f; /* Stato hover superfici */

  /* Text Colors */
  --color-text-primary: #ffffff;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;

  /* Accent Colors (Modern Cyber Gold / Amber Premium) */
  --color-accent: #f59e0b;
  --color-accent-hover: #d97706;
  --color-accent-light: #fbbf24;
  --color-accent-glow: rgba(245, 158, 11, 0.15);

  /* Borders & Dividers */
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(245, 158, 11, 0.3);

  /* Typography */
  --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  
  /* Layout Spacing */
  --container-max-width: 1240px;
  --header-height: 80px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 2. RESET & BASE STYLES
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 100%;
  background-color: var(--color-bg-pure);
  color: var(--color-text-primary);
  font-family: var(--font-family);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  line-height: 1.6;
  overflow-x: hidden;
  background-color: var(--color-bg-pure);
}

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

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

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

ul {
  list-style: none;
}

/* Accessible Focus Ring */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

/* 3. LAYOUT UTILITIES & CONTAINERS
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding-top: 6rem;
  padding-bottom: 6rem;
  position: relative;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-text-primary) 30%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.d-none-mobile {
  display: none;
}

@media (min-width: 768px) {
  .d-none-mobile {
    display: inline-block;
  }
}

/* Section Header Component */
.section-header {
  max-width: 700px;
  margin-bottom: 4rem;
}

.section-header.text-center {
  margin-left: auto;
  margin-right: auto;
}

.section-header__eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section-header__title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-header__description {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
}

/* 4. BUTTONS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

.btn--primary {
  background-color: var(--color-accent);
  color: #000000;
  box-shadow: 0 4px 20px var(--color-accent-glow);
}

.btn--primary:hover {
  background-color: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(245, 158, 11, 0.3);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  background-color: rgba(255, 255, 255, 0.03);
  color: var(--color-accent);
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* 5. NAVBAR
   -------------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: #000000; /* Nero puro fisso per fondere il logo */
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast), backdrop-filter var(--transition-fast);
}

.navbar--scrolled {
  border-bottom-color: var(--color-border);
  background-color: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(12px);
}

.navbar__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.navbar__logo {
  object-fit: contain;
}

.navbar__tagline {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-left: 1px solid var(--color-border);
  padding-left: 1rem;
}

.navbar__list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.navbar__link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.navbar__link:hover {
  color: var(--color-text-primary);
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}

.navbar__toggle-bar {
  width: 22px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Mobile Nav Styles */
@media (max-width: 991px) {
  .navbar__toggle {
    display: flex;
  }

  .navbar__nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--color-bg-pure);
    border-bottom: 1px solid var(--color-border);
    padding: 2rem 1.5rem;
    transform: translateY(-150%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }

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

  .navbar__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .navbar__link {
    font-size: 1.25rem;
  }
}

/* 6. HERO SECTION
   -------------------------------------------------------------------------- */
.hero {
  padding-top: calc(var(--header-height) + 4rem);
  padding-bottom: 6rem;
  background-color: #000000;
  position: relative;
  overflow: hidden;
}

/* Sfondi Decorativi */
.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px),
                    linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(circle at center, black 30%, transparent 80%);
  pointer-events: none;
}

.hero__glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
}

.hero__container {
  position: relative;
  z-index: 1;
}

.hero__content {
  max-width: 800px;
  margin: 0 auto 5rem auto;
  text-align: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
}

.hero__title {
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero__subtitle {
  font-size: clamp(1.125rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  max-width: 680px;
  margin: 0 auto 2.5rem auto;
}

.hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

/* Metrics Cards */
.hero__metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.metric-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  text-align: center;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.metric-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-hover);
}

.metric-card__value {
  display: block;
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}

.metric-card__label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* 7. CAREER ROADMAP (TABS)
   -------------------------------------------------------------------------- */
.career {
  background-color: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.career-tabs {
  display: flex;
  overflow-x: auto;
  gap: 0.5rem;
  background-color: var(--color-bg-pure);
  padding: 0.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  margin-bottom: 2rem;
  scrollbar-width: none; /* Firefox */
}

.career-tabs::-webkit-scrollbar {
  display: none; /* Chrome/Safari */
}

.career-tabs__btn {
  flex: 1;
  min-width: 160px;
  padding: 1rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-align: left;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.career-tabs__num {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  font-weight: 700;
}

.career-tabs__btn:hover {
  color: var(--color-text-primary);
  background-color: rgba(255, 255, 255, 0.03);
}

.career-tabs__btn.is-active {
  background-color: var(--color-bg-card);
  color: var(--color-accent);
  border: 1px solid var(--color-border);
}

.career-tabs__btn.is-active .career-tabs__num {
  color: var(--color-accent);
}

/* Panels */
.career-panel {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 4vw, 3.5rem);
}

.career-panel[hidden] {
  display: none;
}

.career-panel__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 992px) {
  .career-panel__grid {
    grid-template-columns: 1.5fr 1fr;
  }
}

.career-panel__tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.career-panel__title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.career-panel__text {
  color: var(--color-text-secondary);
  font-size: 1.0625rem;
  margin-bottom: 2rem;
}

.career-panel__features {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.career-panel__features li {
  position: relative;
  padding-left: 1.75rem;
  color: var(--color-text-primary);
  font-weight: 500;
}

.career-panel__features li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}

.career-panel__meta {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  justify-content: center;
}

.meta-box {
  background-color: var(--color-bg-pure);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
}

.meta-box__title {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.meta-box__desc {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

/* 8. VALUES SECTION
   -------------------------------------------------------------------------- */
.values__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.value-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  transition: all var(--transition-fast);
}

.value-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-hover);
  background-color: var(--color-bg-card);
}

.value-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.value-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.value-card__text {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

/* 9. LOCATIONS (POLO LATINA)
   -------------------------------------------------------------------------- */
.locations {
  background-color: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
}

.locations__wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
  align-items: center;
}

@media (min-width: 992px) {
  .locations__wrapper {
    grid-template-columns: 1.2fr 1fr;
  }
}

.locations__title {
  font-size: clamp(2rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.locations__text {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}

.locations__features {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.loc-feature {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

.loc-feature strong {
  color: var(--color-text-primary);
}

.loc-feature__bullet {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
  margin-top: 0.5rem;
  flex-shrink: 0;
}

/* Visual Card per Latina */
.location-card {
  background-color: var(--color-bg-pure);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.location-card__header {
  margin-bottom: 1.5rem;
}

.location-card__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.location-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
}

.location-card__body {
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}

.location-card__footer {
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.location-card__status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #22c55e;
  box-shadow: 0 0 10px #22c55e;
}

/* 10. FOOTER
   -------------------------------------------------------------------------- */
.footer {
  background-color: #000000;
  border-top: 1px solid var(--color-border);
  padding-top: 5rem;
}

.footer__container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 3rem;
  padding-bottom: 4rem;
}

.footer__logo {
  margin-bottom: 1rem;
}

.footer__tagline {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.footer__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  max-width: 320px;
}

.footer__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__list a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

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

.footer__text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.footer__address {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding: 1.5rem 0;
}

.footer__bottom-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.footer__legal {
  display: flex;
  gap: 1.5rem;
}

.footer__legal a:hover {
  color: var(--color-text-primary);
}

/* 11. ANIMATIONS & ACCESSIBILITY
   -------------------------------------------------------------------------- */
.fade-in-element {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Reduced Motion Override */
@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;
  }

  .fade-in-element {
    opacity: 1;
    transform: none;
  }
}