:root {
  --bg: #07070c;
  --bg-soft: #10101a;
  --line: rgba(255, 255, 255, 0.09);
  --text: #f2f0ea;
  --muted: #9a98a6;
  --accent: #ffb547;
  --accent-2: #7c5cff;
  --radius: 20px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --display: 'Space Grotesk', system-ui, sans-serif;
  --body: 'Inter', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--display); line-height: 1.05; margin: 0; letter-spacing: -0.02em; }

#scene { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; }
main, .footer, .nav { position: relative; z-index: 1; }

.cursor-glow {
  position: fixed; z-index: 0; pointer-events: none;
  width: 520px; height: 520px; border-radius: 50%;
  left: 0; top: 0; translate: -50% -50%;
  background: radial-gradient(circle, rgba(124, 92, 255, 0.16), transparent 65%);
  transition: opacity 0.4s;
}

/* Nav */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px clamp(16px, 4vw, 48px);
  transition: background 0.3s, backdrop-filter 0.3s;
}
.nav.scrolled { background: rgba(7, 7, 12, 0.7); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.logo { display: flex; align-items: center; gap: 10px; font-family: var(--display); font-weight: 700; font-size: 1.1rem; }
.logo-mark {
  width: 22px; height: 22px; border-radius: 5px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  transform: rotate(45deg) scale(0.8);
  animation: spin 8s linear infinite;
}
@keyframes spin { to { transform: rotate(405deg) scale(0.8); } }
.nav nav { display: flex; align-items: center; gap: clamp(12px, 3vw, 32px); font-size: 0.95rem; }
.nav nav a:not(.btn) { color: var(--muted); transition: color 0.2s; }
.nav nav a:not(.btn):hover { color: var(--text); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 26px; border-radius: 999px; border: 0; cursor: pointer;
  font: 600 0.95rem var(--body); color: #111;
  background: var(--accent);
  transition: transform 0.3s var(--ease), box-shadow 0.3s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -8px rgba(255, 181, 71, 0.6); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--text); box-shadow: none; }
.btn-small { padding: 9px 18px; font-size: 0.85rem; }

/* Hero */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 120px clamp(16px, 6vw, 96px) 80px;
  max-width: 1400px; margin: 0 auto;
}
.eyebrow { color: var(--accent); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.18em; margin: 0 0 18px; }
.hero h1 { font-size: clamp(2.6rem, 8vw, 6.8rem); max-width: 13ch; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--accent), #ff7a59 45%, var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { color: var(--muted); font-size: clamp(1rem, 1.6vw, 1.2rem); max-width: 46ch; margin: 24px 0 0; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.scroll-hint { position: absolute; bottom: 32px; left: 50%; width: 24px; height: 40px; border: 1.5px solid var(--muted); border-radius: 12px; translate: -50% 0; }
.scroll-hint span { position: absolute; left: 50%; top: 8px; width: 3px; height: 8px; border-radius: 2px; background: var(--text); translate: -50% 0; animation: hint 1.8s var(--ease) infinite; }
@keyframes hint { 0% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }

/* Marquee */
.marquee { border-block: 1px solid var(--line); overflow: hidden; padding: 22px 0; background: rgba(7, 7, 12, 0.6); backdrop-filter: blur(6px); }
.marquee-track { display: flex; gap: 56px; width: max-content; animation: marquee 30s linear infinite; }
.marquee-track span { font-family: var(--display); font-size: clamp(1.2rem, 2.4vw, 1.8rem); color: var(--muted); white-space: nowrap; }
.marquee-track span:nth-child(3n) { color: var(--text); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* Stats */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  max-width: 1200px; margin: 100px auto; padding: 0 clamp(16px, 4vw, 48px);
}
.stat { padding: 28px 8px; text-align: center; border-left: 1px solid var(--line); }
.stat:first-child { border-left: 0; }
.stat strong { display: block; font-family: var(--display); font-size: clamp(2.2rem, 5vw, 3.8rem); }
.stat span { color: var(--muted); font-size: 0.9rem; }

/* Sections */
.projects, .process { max-width: 1300px; margin: 0 auto; padding: 80px clamp(16px, 4vw, 48px); }
.section-head h2 { font-size: clamp(2rem, 5vw, 3.6rem); }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 36px 0 44px; }
.filters button {
  padding: 10px 18px; border-radius: 999px; cursor: pointer;
  background: rgba(255, 255, 255, 0.03); border: 1px solid var(--line); color: var(--muted);
  font: 500 0.9rem var(--body); transition: all 0.25s var(--ease);
}
.filters button:hover { color: var(--text); border-color: rgba(255, 255, 255, 0.25); }
.filters button.active { background: var(--text); color: var(--bg); border-color: var(--text); }

/* Project cards with 3D tilt */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 360px), 1fr)); gap: 28px; perspective: 1400px; }
.card {
  position: relative; cursor: pointer;
  border-radius: var(--radius); background: var(--bg-soft); border: 1px solid var(--line);
  transform-style: preserve-3d;
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform 0.6s var(--ease), border-color 0.3s, opacity 0.6s var(--ease), translate 0.6s var(--ease);
  opacity: 0; translate: 0 40px;
}
.card.in { opacity: 1; translate: 0 0; }
.card.tilting { transition: transform 0.12s linear, border-color 0.3s, opacity 0.6s var(--ease), translate 0.6s var(--ease); }
.card:hover { border-color: rgba(255, 255, 255, 0.2); }
.card::after {
  content: ''; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: radial-gradient(500px circle at var(--mx, 50%) var(--my, 50%), rgba(255, 255, 255, 0.09), transparent 40%);
  opacity: 0; transition: opacity 0.3s;
}
.card:hover::after { opacity: 1; }

.cover {
  position: relative; aspect-ratio: 16 / 10; margin: 10px; border-radius: 14px; overflow: hidden;
  background: linear-gradient(135deg, var(--c1), var(--c2));
  transform-style: preserve-3d; transform: translateZ(20px);
}
.cover::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 28px 28px; mask-image: linear-gradient(to bottom, #000, transparent);
}
.mock {
  position: absolute; left: 14%; right: 14%; top: 18%; bottom: -8%;
  border-radius: 10px 10px 0 0; background: rgba(10, 10, 18, 0.88);
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.6);
  transform: translateZ(40px) rotateX(8deg);
  transition: transform 0.6s var(--ease);
  padding: 12px; display: grid; grid-template-rows: auto auto 1fr; gap: 10px;
}
.card:hover .mock { transform: translateZ(70px) rotateX(0deg) translateY(-6%); }
.cover-img {
  position: absolute; left: 10%; right: 10%; top: 16%; width: 80%; height: 92%;
  object-fit: cover; object-position: top; border-radius: 10px 10px 0 0;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.6);
  transform: translateZ(40px) rotateX(8deg);
  transition: transform 0.6s var(--ease);
}
.card:hover .cover-img { transform: translateZ(70px) rotateX(0deg) translateY(-6%); }
.mock-bar { display: flex; gap: 5px; }
.mock-bar i { width: 7px; height: 7px; border-radius: 50%; background: rgba(255, 255, 255, 0.25); }
.mock-hero { height: 34px; border-radius: 6px; background: linear-gradient(90deg, var(--c1), var(--c2)); opacity: 0.85; }
.mock-rows { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.mock-rows i { border-radius: 5px; background: rgba(255, 255, 255, 0.08); min-height: 44px; }
.cover-badge {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  padding: 5px 11px; border-radius: 999px; font-size: 0.72rem; font-weight: 600;
  background: rgba(0, 0, 0, 0.35); backdrop-filter: blur(8px); color: #fff;
  transform: translateZ(60px);
}
.card-body { padding: 14px 22px 24px; transform: translateZ(30px); }
.card-meta { display: flex; justify-content: space-between; color: var(--muted); font-size: 0.82rem; }
.card h3 { font-size: 1.5rem; margin: 6px 0 8px; }
.card p { color: var(--muted); font-size: 0.93rem; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.tags span { font-size: 0.75rem; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.empty { color: var(--muted); grid-column: 1 / -1; text-align: center; padding: 60px 0; }

/* Process */
.steps { list-style: none; padding: 0; margin: 48px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step {
  padding: 28px; border-radius: var(--radius); border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent);
  backdrop-filter: blur(6px);
}
.step span { font-family: var(--display); color: var(--accent); font-size: 0.9rem; }
.step h3 { font-size: 1.4rem; margin: 18px 0 10px; }
.step p { color: var(--muted); margin: 0; font-size: 0.93rem; }

/* Contact */
.contact { padding: 80px clamp(16px, 4vw, 48px) 120px; }
.contact-card {
  max-width: 1100px; margin: 0 auto; padding: clamp(28px, 5vw, 64px);
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
  border-radius: 28px; border: 1px solid var(--line);
  background: radial-gradient(circle at 0% 0%, rgba(255, 181, 71, 0.14), transparent 50%), radial-gradient(circle at 100% 100%, rgba(124, 92, 255, 0.18), transparent 50%), rgba(16, 16, 26, 0.85);
  backdrop-filter: blur(12px);
}
.contact h2 { font-size: clamp(2rem, 4vw, 3rem); }
form { display: grid; gap: 14px; }
label { display: grid; gap: 6px; font-size: 0.85rem; color: var(--muted); }
input, textarea, .contact select {
  font: inherit; color: var(--text); background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; resize: vertical;
  transition: border-color 0.2s;
}
input:focus, textarea:focus, .contact select:focus { outline: none; border-color: var(--accent); }
.form-status { margin: 0; font-size: 0.9rem; min-height: 1.4em; color: var(--accent); }

/* Form richieste */
.contact-card { grid-template-columns: 0.8fr 1.2fr; }
.contact select option { background: var(--bg-soft); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .span-2 { grid-column: span 2; }
.form-grid label { position: relative; min-width: 0; }
.contact .counter { position: absolute; top: 0; right: 0; font-size: 0.75rem; }
.contact .invalid { border-color: #ff6b6b; }
.file-field { display: grid; gap: 6px; font-size: 0.85rem; color: var(--muted); }
.file-field small { opacity: 0.8; }
.file-drop {
  position: relative; display: block; padding: 18px; text-align: center; cursor: pointer; color: var(--text);
  border: 1.5px dashed var(--line); border-radius: 12px; background: rgba(0, 0, 0, 0.2); transition: border-color 0.2s, background 0.2s;
}
.file-drop:hover, .file-drop:focus-within { border-color: var(--accent); background: rgba(255, 181, 71, 0.06); }
.file-drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.file-text { overflow-wrap: anywhere; }
.file-remove { justify-self: start; background: none; border: 0; padding: 0; color: #ff8a8a; font: inherit; font-size: 0.82rem; cursor: pointer; }
.check { display: flex; align-items: flex-start; gap: 10px; cursor: pointer; line-height: 1.45; }
.check input { flex: none; width: 18px; height: 18px; margin: 1px 0 0; accent-color: var(--accent); }
.check input.invalid { outline: 2px solid #ff6b6b; outline-offset: 2px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
#contact-form .btn:disabled { opacity: 0.6; cursor: wait; transform: none; }

.footer { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding: 28px clamp(16px, 4vw, 48px); border-top: 1px solid var(--line); color: var(--muted); font-size: 0.85rem; background: var(--bg); }

/* Modal */
dialog {
  width: min(760px, calc(100% - 32px)); padding: 0; border: 1px solid var(--line); border-radius: 24px;
  background: var(--bg-soft); color: var(--text); overflow: hidden;
}
dialog[open] { animation: pop 0.5s var(--ease); }
dialog::backdrop { background: rgba(0, 0, 0, 0.7); backdrop-filter: blur(6px); }
@keyframes pop { from { opacity: 0; transform: perspective(900px) rotateX(14deg) translateY(30px) scale(0.96); } }
.modal-close { position: absolute; top: 14px; right: 14px; z-index: 3; width: 38px; height: 38px; border-radius: 50%; border: 0; cursor: pointer; background: rgba(0, 0, 0, 0.4); color: #fff; font-size: 1.4rem; }
.modal-body .cover { margin: 0; border-radius: 0; aspect-ratio: 16 / 7; transform: none; }
.modal-content { padding: 28px 32px 32px; }
.modal-content h3 { font-size: 2.2rem; margin: 4px 0 12px; }
.modal-content p { color: var(--muted); }
.modal-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 22px 0; }
.modal-facts div { padding: 14px; border-radius: 12px; border: 1px solid var(--line); }
.modal-facts small { display: block; color: var(--muted); font-size: 0.75rem; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(30px) rotateX(-12deg); transform-origin: top; transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .steps { grid-template-columns: repeat(2, 1fr); }
  .contact-card { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: 0; }
}
@media (max-width: 560px) {
  .nav nav a:not(.btn) { display: none; }
  .steps { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .span-2 { grid-column: auto; }
  .modal-facts { grid-template-columns: 1fr; }
  .cursor-glow { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal, .card { opacity: 1; transform: none; translate: none; }
}