:root{
    --bg: #F6F5F1;
    --bg-panel: #EFEDE7;
    --ink: #1A1A17;
    --ink-soft: #55534C;
    --line: #DBD7CC;
    --accent: #8C8674;
    --accent-2: #B7AF9D;
    --radius: 2px;
  }

  *{ box-sizing:border-box; margin:0; padding:0; }
  html{ scroll-behavior:smooth; overflow-x:hidden; }
  body{ overflow-x:hidden; }
  body{
    background:var(--bg);
    color:var(--ink);
    font-family:'Inter', sans-serif;
    font-weight:400;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
  }

  ::selection{ background:var(--ink); color:var(--bg); }

  a{ color:inherit; text-decoration:none; }
  img{ max-width:100%; display:block; }

  /* ---------- Mirini d'angolo (linguaggio da disegno tecnico) ---------- */
  .tech-frame{ position:relative; }
  .tech-frame::before,
  .tech-frame::after{
    content:"";
    position:absolute;
    width:13px; height:13px;
    pointer-events:none;
    z-index:3;
  }
  .tech-frame::before{
    top:-1px; left:-1px;
    border-top:1px solid var(--accent);
    border-left:1px solid var(--accent);
  }
  .tech-frame::after{
    bottom:-1px; right:-1px;
    border-bottom:1px solid var(--accent);
    border-right:1px solid var(--accent);
  }

  .wrap{
    max-width:1180px;
    margin:0 auto;
    padding:0 40px;
  }

  h1,h2,h3{
    font-family:'Fraunces', serif;
    font-weight:400;
    letter-spacing:-0.01em;
  }

  .mono{
    font-family:'IBM Plex Mono', monospace;
    font-size:12px;
    letter-spacing:0.12em;
    text-transform:uppercase;
    color:var(--ink-soft);
  }

  /* ---------- Header ---------- */
  header{
    position:fixed;
    top:0; left:0; right:0;
    z-index:100;
    background:rgba(246,245,241,0.85);
    backdrop-filter:blur(6px);
    border-bottom:1px solid var(--line);
  }
  .nav{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:22px 40px;
    max-width:1180px;
    margin:0 auto;
  }
  .logo{
    font-family:'Fraunces', serif;
    font-size:19px;
    letter-spacing:0.01em;
  }
  .logo img{ height:38px; width:auto; display:block; }
  .nav-links{
    display:flex;
    gap:36px;
    font-size:13px;
    letter-spacing:0.04em;
    text-transform:uppercase;
  }
  .nav-links a{
    position:relative;
    padding-bottom:4px;
    color:var(--ink-soft);
    transition:color .25s ease;
  }
  .nav-links a:hover{ color:var(--ink); }
  .nav-links a::after{
    content:"";
    position:absolute;
    left:0; bottom:0;
    width:0%; height:1px;
    background:var(--ink);
    transition:width .3s ease;
  }
  .nav-links a:hover::after{ width:100%; }

  .nav-toggle{
    display:none;
    flex-direction:column;
    justify-content:center;
    width:32px;
    height:26px;
    background:none;
    border:none;
    padding:0;
    cursor:pointer;
    z-index:210;
  }
  .nav-toggle span{
    display:block;
    height:2px;
    width:100%;
    background:var(--ink);
    transition:transform .3s ease, opacity .3s ease;
  }
  .nav-toggle span + span{ margin-top:6px; }
  .nav-toggle.active span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
  .nav-toggle.active span:nth-child(2){ opacity:0; }
  .nav-toggle.active span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

  .menu-overlay{
    position:fixed; inset:0;
    background:rgba(26,26,23,0.35);
    opacity:0;
    pointer-events:none;
    transition:opacity .3s ease;
    z-index:150;
  }
  .menu-overlay.active{ opacity:1; pointer-events:auto; }

  .mobile-menu{
    position:fixed;
    top:0; right:0;
    height:100vh;
    width:min(78%, 340px);
    background:var(--bg);
    border-left:1px solid var(--line);
    display:flex;
    flex-direction:column;
    gap:2px;
    padding:110px 34px 40px;
    transform:translateX(100%);
    transition:transform .35s ease;
    z-index:200;
    overflow-y:auto;
  }
  .mobile-menu.open{ transform:translateX(0); }
  .mobile-menu a{
    padding:16px 0;
    border-bottom:1px solid var(--line);
    font-family:'Fraunces', serif;
    font-size:21px;
    font-weight:400;
    color:var(--ink);
  }
  body.menu-open{ overflow:hidden; }

  @media (max-width:860px){
    .nav-toggle{ display:flex; }
  }

  /* ---------- Hero ---------- */
  .hero{
    min-height:88vh;
    display:flex;
    flex-direction:column;
    justify-content:center;
    position:relative;
    overflow:hidden;
    padding-top:80px;
  }
  .blueprint-grid{
    position:absolute;
    inset:0;
    opacity:0;
    animation: fadeGrid 2.4s ease forwards .3s;
    pointer-events:none;
  }
  @keyframes fadeGrid{
    to{ opacity:1; }
  }
  .hero-inner{
    position:relative;
    z-index:2;
  }
  .blueprint-grid .plan-group{
    opacity:0;
    animation: fadeGrid 1.6s ease forwards .9s;
  }
  @media (max-width:640px), (max-height:480px) and (orientation:landscape), (max-aspect-ratio: 3/2){
    .blueprint-grid .plan-group{ display:none; }
  }
  @media (max-height:480px) and (orientation:landscape){
    .hero{ min-height:auto; padding-top:100px; padding-bottom:40px; }
    .hero-scroll{ display:none; }
  }
  .hero .mono{ margin-bottom:22px; }
  .hero h1{
    font-size:clamp(42px, 7vw, 88px);
    line-height:0.98;
    max-width:14ch;
    font-weight:300;
  }
  .hero h1 em{ font-style:italic; font-weight:400; }
  .hero-sub{
    margin-top:28px;
    max-width:480px;
    color:var(--ink-soft);
    font-size:16px;
  }
  .hero-scroll{
    position:absolute;
    bottom:40px;
    left:40px;
    display:flex;
    align-items:center;
    gap:10px;
  }
  .hero-scroll .stem{
    width:1px; height:40px;
    background:var(--line);
    position:relative;
    overflow:hidden;
  }
  .hero-scroll .stem::after{
    content:"";
    position:absolute;
    top:-40px; left:0;
    width:1px; height:40px;
    background:var(--ink);
    animation: scrollLine 2.2s ease-in-out infinite;
  }
  @keyframes scrollLine{
    0%{ top:-40px; }
    60%{ top:40px; }
    100%{ top:40px; }
  }

  /* ---------- Section shell ---------- */
  section{ padding:130px 0; }
  .section-head{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    gap:40px;
    margin-bottom:70px;
    border-bottom:1px solid var(--line);
    padding-bottom:28px;
  }
  .section-head h2{
    font-size:clamp(30px, 4vw, 46px);
    font-weight:300;
  }
  .section-head .mono{ text-align:right; max-width:220px; }

  /* ---------- Chi sono ---------- */
  .about{ background:var(--bg); padding-top:70px; }
  .about-grid{
    display:grid;
    grid-template-columns:0.9fr 1.1fr;
    gap:70px;
    align-items:start;
  }
  .about-portrait{
    aspect-ratio:4/5;
    background:var(--bg-panel);
    border:1px solid var(--line);
    position:relative;
    overflow:hidden;
    min-width:0;
  }
  .about-portrait svg{ position:absolute; inset:0; width:100%; height:100%; }
  .about-portrait img{
    width:100%; height:100%;
    object-fit:cover;
    object-position:50% 22%;
    display:block;
    filter:grayscale(0.06);
  }

  /* ---------- Striscia processo ---------- */
  .process-strip{
    margin-top:60px;
  }
  .process-strip .mono{ margin-bottom:16px; }
  .process-grid{
    display:grid;
    grid-template-columns:1.4fr 1.4fr 1fr;
    gap:2px;
    background:var(--line);
    border:1px solid var(--line);
  }
  .process-grid figure{ margin:0; overflow:hidden; background:var(--bg-panel); min-width:0; }
  .process-grid img{
    width:100%; height:100%;
    aspect-ratio:1/1;
    object-fit:cover;
    display:block;
    filter:grayscale(0.08);
    transition:transform .5s ease;
  }
  .process-grid figure:hover img{ transform:scale(1.04); }
  .process-grid figure:nth-child(3) img{ aspect-ratio:1/1; object-position:50% 20%; }
  .about-text p{
    font-size:17px;
    color:var(--ink-soft);
    max-width:52ch;
    margin-bottom:22px;
  }
  .about-text p:first-child{
    font-family:'Fraunces', serif;
    font-size:24px;
    color:var(--ink);
    font-weight:400;
    line-height:1.4;
  }
  .about-facts{
    margin-top:40px;
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:24px;
    border-top:1px solid var(--line);
    padding-top:30px;
  }
  .about-facts div .mono{ margin-bottom:6px; }
  .about-facts div p{ font-size:15px; color:var(--ink); margin:0; }

  /* ---------- Progetti ---------- */
  .projects{ background:var(--bg-panel); }
  .project-group{ margin-bottom:64px; }
  .project-group:last-child{ margin-bottom:0; }
  .project-group-head{
    display:flex;
    align-items:baseline;
    justify-content:space-between;
    gap:20px;
    border-bottom:1px solid var(--line);
    padding-bottom:14px;
    margin-bottom:32px;
  }
  .project-group-head h3{
    font-family:'Fraunces', serif;
    font-weight:400;
    font-size:clamp(19px, 2.2vw, 24px);
  }
  .project-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:36px 28px;
  }
  .project-card{ display:block; min-width:0; }
  .project-card figure{
    margin:0 0 16px;
    aspect-ratio:4/3;
    overflow:hidden;
    background:var(--bg);
    border:1px solid var(--line);
  }
  .project-card img{
    width:100%; height:100%;
    object-fit:cover;
    display:block;
    filter:grayscale(0.05);
    transition:transform .5s ease;
  }
  .project-card:hover img{ transform:scale(1.04); }
  .project-card .project-num{
    font-family:'IBM Plex Mono', monospace;
    font-size:12px;
    color:var(--accent);
    display:block;
    margin-bottom:8px;
  }
  .project-card .project-name{
    display:block;
    font-family:'Fraunces', serif;
    font-size:19px;
    font-weight:400;
    line-height:1.3;
    margin-bottom:6px;
  }
  .project-card .project-meta{
    display:block;
    color:var(--ink-soft);
    font-size:13px;
    line-height:1.5;
  }
  .project-card .project-meta .yr{
    font-family:'IBM Plex Mono', monospace;
    color:var(--accent);
  }
  /* card di dimensioni diverse per varietà nella griglia grafica */
  .project-grid.graphic{ grid-template-columns:repeat(4, 1fr); }
  .project-grid.graphic figure{ aspect-ratio:1/1; }

  /* Progetti accademici: molte copertine sono tavole/PDF in formato verticale.
     Con object-fit:contain la copertina è sempre visibile per intero e centrata,
     senza tagli, indipendentemente da proporzioni e dispositivo. */
  .project-grid:not(.graphic) .project-card figure{
    background:var(--bg);
    padding:16px;
  }
  .project-grid:not(.graphic) .project-card img{
    object-fit:contain;
    filter:none;
  }

  /* ---------- Servizi ---------- */
  .services{ background:var(--bg); }
  .service-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:1px;
    background:var(--line);
    border:1px solid var(--line);
  }
  .service-card{
    background:var(--bg);
    padding:44px 36px;
    min-height:220px;
    display:flex;
    flex-direction:column;
    justify-content:space-between;
  }
  .service-card .mono{ margin-bottom:auto; }
  .service-card h3{
    font-size:22px;
    font-weight:400;
    margin:24px 0 12px;
  }
  .service-card p{ font-size:14px; color:var(--ink-soft); }

  /* ---------- Contatti ---------- */
  .contact{ background:var(--ink); color:var(--bg); }
  .contact .mono{ color:var(--accent-2); }
  .contact-grid{
    display:grid;
    grid-template-columns:1.2fr 1fr;
    gap:60px;
  }
  .contact h2{
    font-size:clamp(34px, 5vw, 58px);
    font-weight:300;
    line-height:1.15;
    color:var(--bg);
  }
  .contact-form{ display:flex; flex-direction:column; gap:22px; }
  .field{ border-bottom:1px solid rgba(246,245,241,0.25); padding-bottom:12px; }
  .field label{ display:block; font-size:12px; letter-spacing:0.08em; text-transform:uppercase; color:var(--accent-2); margin-bottom:8px; }
  .field input, .field textarea{
    width:100%;
    background:transparent;
    border:none;
    color:var(--bg);
    font-family:'Inter', sans-serif;
    font-size:16px;
    outline:none;
    resize:none;
  }
  .submit-btn{
    align-self:flex-start;
    margin-top:10px;
    padding:14px 30px;
    border:1px solid var(--bg);
    background:transparent;
    color:var(--bg);
    font-family:'IBM Plex Mono', monospace;
    font-size:12px;
    letter-spacing:0.1em;
    text-transform:uppercase;
    cursor:pointer;
    transition:background .25s ease, color .25s ease;
  }
  .submit-btn:hover{ background:var(--bg); color:var(--ink); }
  .contact-popup{
    position:relative;
    margin-top:22px;
    padding:16px 40px 16px 18px;
    border:1px solid var(--bg);
    color:var(--bg);
    font-size:14px;
    line-height:1.5;
  }
  .contact-popup.is-err{ border-color:var(--accent-2); }
  .popup-msg{ display:none; }
  .contact-popup.is-ok .popup-msg-ok{ display:block; }
  .contact-popup.is-err .popup-msg-err{ display:block; }
  .popup-close{
    position:absolute;
    top:10px; right:12px;
    background:none;
    border:none;
    color:var(--bg);
    font-size:18px;
    line-height:1;
    cursor:pointer;
    opacity:0.7;
    transition:opacity .2s ease;
  }
  .popup-close:hover{ opacity:1; }
  .contact-info{ display:flex; flex-direction:column; gap:26px; justify-content:flex-end; }
  .contact-info .item .mono{ margin-bottom:6px; }
  .contact-info .item p{ font-size:16px; }

  footer{
    background:var(--ink);
    color:var(--accent-2);
    text-align:center;
    padding:30px 0 26px;
    font-size:12px;
    letter-spacing:0.04em;
    border-top:1px solid rgba(246,245,241,0.12);
  }
  footer img{
    height:22px; width:auto;
    display:block;
    margin:0 auto 12px;
    filter:invert(1) brightness(1.6) opacity(0.85);
  }

  /* ---------- Tablet ---------- */
  @media (max-width: 1024px){
    .wrap{ padding:0 30px; }
    .nav{ padding:20px 30px; }
    .about-grid{ gap:44px; }
    .project-grid{ gap:30px 20px; }
    section{ padding:100px 0; }
    .about{ padding-top:60px; }
  }

  @media (max-width: 860px){
    .nav-links{ display:none; }
    .about-grid{ grid-template-columns:1fr; }
    .about-facts{ grid-template-columns:1fr 1fr; }
    .section-head{ flex-direction:column; align-items:flex-start; gap:14px; }
    .service-grid{ grid-template-columns:1fr; }
    .project-grid{ grid-template-columns:1fr 1fr; gap:28px 18px; }
    .project-grid.graphic{ grid-template-columns:1fr 1fr; }
    .process-grid{ grid-template-columns:1fr 1fr 1fr; }
    .contact-grid{ grid-template-columns:1fr; }
    .wrap{ padding:0 22px; }
    .nav{ padding:18px 22px; }
    section{ padding:80px 0; }
    .about{ padding-top:44px; }
    .section-head{ margin-bottom:46px; }
  }

  @media (max-width: 560px){
    .process-grid{ grid-template-columns:1fr; }
    .project-grid{ grid-template-columns:1fr; }
    .project-grid.graphic{ grid-template-columns:1fr; }
    .about-facts{ grid-template-columns:1fr; }
    .hero h1{ max-width:100%; }
    .hero-scroll{ display:none; }
    .hero{ min-height:82vh; }
    section{ padding:64px 0; }
    .about{ padding-top:36px; }
    .contact-grid{ gap:40px; }
  }

  @media (prefers-reduced-motion: reduce){
    *{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; }
  }

  :focus-visible{ outline:2px solid var(--ink); outline-offset:3px; }

  /* ---------- Pagina dettaglio progetto ---------- */
  .detail-hero{
    padding:150px 0 50px;
    background:var(--bg);
  }
  .back-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:var(--ink-soft);
    font-size:13px;
    letter-spacing:0.04em;
    text-transform:uppercase;
    margin-bottom:28px;
    transition:color .25s ease;
  }
  .back-link:hover{ color:var(--ink); }
  .detail-hero h1{
    font-size:clamp(32px, 5vw, 54px);
    font-weight:300;
    max-width:18ch;
    margin-bottom:18px;
  }
  .detail-meta-row{
    display:flex;
    flex-wrap:wrap;
    gap:10px 28px;
    padding-top:22px;
    margin-top:22px;
    border-top:1px solid var(--line);
  }
  .detail-meta-row div{ display:block; min-width:130px; }
  .detail-meta-row div .mono{ display:block; margin-bottom:4px; }
  .detail-meta-row div p{ display:block; font-size:14px; margin:0; }
  .detail-desc{
    max-width:64ch;
    font-size:17px;
    color:var(--ink-soft);
    margin-top:22px;
  }
  .detail-gallery{
    background:var(--bg);
    padding-bottom:120px;
  }
  .detail-gallery-grid{
    display:grid;
    grid-template-columns:repeat(2, 1fr);
    gap:20px;
  }
  .detail-gallery-grid figure{
    margin:0;
    border:1px solid var(--line);
    overflow:hidden;
    background:var(--bg-panel);
    min-width:0;
  }
  .detail-gallery-grid img{
    width:100%; height:100%;
    object-fit:cover;
    display:block;
  }
  .detail-nav{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:30px 0;
    border-top:1px solid var(--line);
    font-size:13px;
    text-transform:uppercase;
    letter-spacing:0.04em;
  }
  .detail-nav a{ color:var(--ink-soft); transition:color .25s ease; }
  .detail-nav a:hover{ color:var(--ink); }

  @media (max-width: 860px){
    .detail-gallery-grid{ grid-template-columns:1fr; }
    .detail-hero{ padding:120px 0 40px; }
  }