@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&family=Playfair+Display:ital,wght@0,700;0,800;1,700;1,800&display=swap');

/* === CSS VARIABLES === */
:root {
  --bg-primary: #080808;
  --bg-secondary: #0f0f0f;
  --bg-tertiary: #111111;
  --color-title: #ffffff;
  --color-accent: #c9a84c;
  --color-text: #a0a0a0;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-light: rgba(255, 255, 255, 0.06);
  --color-card-bg: rgba(255, 255, 255, 0.02);
  --font-title: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  background-color: var(--bg-primary);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

/* === CONTAINER === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

/* === TYPOGRAPHY UTILITIES === */
.label-accent {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 24px;
}

h1, h2, h3 {
  font-family: var(--font-title);
  color: var(--color-title);
  line-height: 1.15;
}

h1 em, h2 em, h3 em {
  font-style: italic;
  color: var(--color-title);
}

/* === NAVIGATION === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(8, 8, 8, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo img {
  height: 36px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav-links a {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text);
  letter-spacing: 0.03em;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--color-title);
}

.nav-cta {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 10px 22px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  border-radius: 2px;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-cta:hover {
  background: var(--color-accent);
  color: #000;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  z-index: 1100;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--color-title);
  transition: all 0.3s ease;
  transform-origin: center;
}

.hamburger.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.hamburger.is-open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile menu overlay */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(8, 8, 8, 0.98);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
}

.mobile-menu.is-open {
  display: flex;
}

.mobile-menu a {
  font-family: var(--font-title);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-title);
  letter-spacing: 0.01em;
  transition: color 0.2s ease;
}

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

.mobile-menu .mobile-cta {
  font-family: var(--font-body);
  font-size: 15px;
  letter-spacing: 0.08em;
  padding: 14px 36px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  border-radius: 2px;
  margin-top: 16px;
}

/* === SECTIONS BASE === */
section {
  padding: 120px 0;
}

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

/* === HERO === */
.hero {
  padding-top: 180px;
  padding-bottom: 160px;
  background: radial-gradient(ellipse at 50% 40%, rgba(201, 168, 76, 0.04) 0%, transparent 65%), var(--bg-primary);
  text-align: center;
}

.hero-label {
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(52px, 7vw, 88px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.hero-sub {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 18px;
  color: var(--color-text);
  max-width: 560px;
  margin: 0 auto 48px;
  line-height: 1.75;
}

.hero-ctas {
  display: flex;
  gap: 20px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #000;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 16px 36px;
  border-radius: 2px;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease;
  text-transform: uppercase;
}

.btn-primary:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-title);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.02em;
  transition: gap 0.2s ease;
}

.btn-ghost:hover {
  gap: 14px;
}

.btn-ghost .arrow {
  font-size: 18px;
  line-height: 1;
}

.hero-trust {
  margin-top: 40px;
  font-size: 12px;
  font-weight: 400;
  color: #444;
  letter-spacing: 0.06em;
}

.hero-trust span {
  margin: 0 10px;
  color: #2a2a2a;
}

/* === SECTION PROBLEMA === */
.problema .section-title {
  font-size: clamp(34px, 4vw, 52px);
  font-weight: 800;
  max-width: 700px;
  margin-bottom: 64px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.problem-card {
  border: 1px solid var(--color-border);
  background: var(--color-card-bg);
  padding: 36px 32px;
  border-radius: 2px;
}

.problem-icon {
  width: 36px;
  height: 36px;
  margin-bottom: 24px;
  color: var(--color-accent);
}

.problem-card h3 {
  font-family: var(--font-title);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-title);
  margin-bottom: 14px;
}

.problem-card p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text);
}

/* === SECTION SOLUZIONE === */
.soluzione-grid {
  display: grid;
  grid-template-columns: 60fr 40fr;
  gap: 80px;
  align-items: center;
}

.soluzione-text .section-title {
  font-size: clamp(34px, 4vw, 50px);
  font-weight: 800;
  margin-bottom: 36px;
}

.soluzione-text p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text);
  margin-bottom: 20px;
}

.device-frame {
  background: #0a0a0a;
  border: 1px solid rgba(201, 168, 76, 0.2);
  border-radius: 8px;
  padding: 12px;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.6);
}

.device-frame img {
  border-radius: 4px;
  width: 100%;
}

/* === SECTION FUNZIONALITÀ === */
.funzionalita {
  background: var(--bg-primary);
}

.funzionalita-header {
  text-align: center;
  margin-bottom: 100px;
}

.funzionalita-header .section-title {
  font-size: clamp(34px, 4vw, 52px);
  font-weight: 800;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 80px;
}

.feature-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.feature-item:nth-child(even) {
  direction: rtl;
}

.feature-item:nth-child(even) > * {
  direction: ltr;
}

.feature-text {
  display: flex;
  flex-direction: column;
}

.feature-number {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}

.feature-text h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
}

.feature-text p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
  max-width: 420px;
}

.feature-image img {
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
  width: 100%;
}

/* === SECTION PERCHÉ === */
.perche-header {
  text-align: center;
  margin-bottom: 80px;
}

.perche-header .section-title {
  font-size: clamp(32px, 4vw, 50px);
  font-weight: 800;
}

.perche-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px 80px;
}

.perche-item {
  position: relative;
  padding-top: 28px;
}

.perche-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--color-accent);
}

.perche-item h3 {
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-title);
  margin-bottom: 12px;
  line-height: 1.3;
}

.perche-item p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text);
}

/* === CTA FINALE === */
.cta-finale {
  padding: 120px 0;
  background: var(--bg-primary);
  border-top: 1px solid rgba(201, 168, 76, 0.15);
  text-align: center;
}

.cta-finale .section-title {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 800;
  margin-bottom: 24px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta-finale p {
  font-size: 17px;
  color: var(--color-text);
  margin-bottom: 48px;
  font-weight: 300;
}

.btn-cta-large {
  display: inline-block;
  background: var(--color-accent);
  color: #000;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 18px 48px;
  border-radius: 2px;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.btn-cta-large:hover {
  opacity: 0.88;
  transform: translateY(-2px);
}

/* === FOOTER === */
.footer {
  border-top: 1px solid var(--color-border-light);
  background: var(--bg-primary);
  padding: 28px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo img {
  height: 28px;
  opacity: 0.7;
}

.footer-copy {
  font-size: 12px;
  color: #555;
  letter-spacing: 0.03em;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 12px;
  color: #555;
  letter-spacing: 0.03em;
  transition: color 0.2s ease;
}

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

/* === CONTATTI PAGE === */
.page-hero {
  padding-top: 160px;
  padding-bottom: 80px;
}

.page-hero h1 {
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 800;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 16px;
  color: var(--color-text);
}

.contatti-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding-bottom: 120px;
  align-items: start;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #666;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: #111;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  padding: 14px 16px;
  color: var(--color-title);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 300;
  transition: border-color 0.2s ease;
  outline: none;
  -webkit-appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #555;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 130px;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 28px;
}

.form-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  min-width: 16px;
  accent-color: var(--color-accent);
  margin-top: 3px;
  cursor: pointer;
}

.form-checkbox label {
  font-size: 13px;
  color: var(--color-text);
  line-height: 1.5;
  cursor: pointer;
}

.form-checkbox a {
  color: var(--color-accent);
  text-decoration: underline;
}

.btn-submit {
  background: var(--color-accent);
  color: #000;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 16px 36px;
  border: none;
  border-radius: 2px;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease;
  width: 100%;
}

.btn-submit:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.contatti-info {
  padding-top: 16px;
}

.contatti-info h3 {
  font-family: var(--font-title);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--color-title);
}

.contatti-info p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 20px;
}

.contatti-info a {
  color: var(--color-accent);
  font-weight: 400;
  transition: opacity 0.2s ease;
}

.contatti-info a:hover {
  opacity: 0.8;
}

.info-divider {
  width: 40px;
  height: 1px;
  background: var(--color-accent);
  margin: 32px 0;
  opacity: 0.5;
}

/* === GRAZIE PAGE === */
.grazie-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
}

.grazie-inner h1 {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  margin-bottom: 20px;
}

.grazie-inner p {
  font-size: 17px;
  color: var(--color-text);
  margin-bottom: 48px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.04em;
  transition: gap 0.2s ease;
}

.back-link:hover {
  gap: 14px;
}

/* === SCROLL ANIMATIONS === */
[data-animate] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-animate="fade-left"] {
  transform: translateX(-36px);
  opacity: 0;
}

[data-animate="fade-right"] {
  transform: translateX(36px);
  opacity: 0;
}

[data-animate].is-visible {
  opacity: 1;
  transform: none;
}

/* Stagger delays for grouped items */
[data-delay="1"] { transition-delay: 0.1s; }
[data-delay="2"] { transition-delay: 0.2s; }
[data-delay="3"] { transition-delay: 0.3s; }
[data-delay="4"] { transition-delay: 0.4s; }

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

  .container {
    padding: 0 20px;
  }

  section {
    padding: 80px 0;
  }

  /* Nav */
  .nav-links {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  /* Hero */
  .hero {
    padding-top: 130px;
    padding-bottom: 100px;
  }

  .hero h1 {
    letter-spacing: -0.01em;
  }

  .hero-sub {
    font-size: 16px;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: center;
  }

  .btn-primary {
    width: 100%;
    max-width: 280px;
    text-align: center;
  }

  /* Problema */
  .problem-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Soluzione */
  .soluzione-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  /* Funzionalità */
  .funzionalita-header {
    margin-bottom: 64px;
  }

  .feature-list {
    gap: 56px;
  }

  .feature-item {
    grid-template-columns: 1fr;
    gap: 32px;
    direction: ltr !important;
  }

  .feature-item:nth-child(even) {
    direction: ltr;
  }

  .feature-item:nth-child(even) > * {
    direction: ltr;
  }

  .feature-image {
    order: 2;
  }

  .feature-text {
    order: 1;
  }

  .feature-text p {
    max-width: 100%;
  }

  /* Perché */
  .perche-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  /* CTA */
  .cta-finale {
    padding: 80px 0;
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  /* Contatti */
  .page-hero {
    padding-top: 120px;
    padding-bottom: 48px;
  }

  .contatti-grid {
    grid-template-columns: 1fr;
    gap: 56px;
    padding-bottom: 80px;
  }

  /* Grazie */
  .grazie-inner h1 {
    font-size: clamp(36px, 8vw, 56px);
  }
}