/* ═══════════════════════════════════════════════════════════════════════
   TUTTO FA BLUFF — Alessandro Squitti
   Theme: Cinema Esquilino · v2 (CRO-optimized)
═══════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;1,300;1,400;1,500&family=EB+Garamond:ital,wght@0,400;0,500;1,400;1,500&family=DM+Mono:wght@300;400&display=swap');

:root {
  --carta:        #F4EFE4;
  --carta-deep:   #EAE3D2;
  --carta-warm:   #F8F5EE;
  --ink:          #1C1915;
  --ink-soft:     #3D3830;
  --ink-faint:    #6B6357;
  --rosso:        #8C2B1A;
  --rosso-hover:  #A83422;
  --oro:          #B8942A;
  --oro-light:    #D4AF4A;
  --grigio:       #9A9185;
  --grigio-light: #C8C0B4;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'EB Garamond', Georgia, serif;
  --font-ui:      'DM Mono', 'Courier New', monospace;

  --nav-h:        72px;
  --side:         clamp(1.5rem, 7vw, 8rem);
  --max-prose:    66ch;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 17px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { background: var(--carta); color: var(--ink); font-family: var(--font-body); line-height: 1.75; min-height: 100vh; }
img { display: block; max-width: 100%; }
a   { color: inherit; }

body::after {
  content: ''; position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.028; pointer-events: none; z-index: 9999;
}

/* ── NAV ──────────────────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: var(--nav-h); padding: 0 var(--side);
  display: flex; align-items: center; justify-content: space-between;
  background: linear-gradient(to bottom, var(--carta) 60%, transparent);
  transition: background 0.35s ease, box-shadow 0.35s ease;
}
.nav.scrolled { background: var(--carta); box-shadow: 0 1px 0 var(--grigio-light); }
.nav__brand { font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.22em; text-transform: uppercase; text-decoration: none; color: var(--ink-soft); transition: color 0.2s; }
.nav__brand:hover { color: var(--ink); }
.nav__links { display: flex; gap: 2.5rem; list-style: none; }
.nav__links a { font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.18em; text-transform: uppercase; text-decoration: none; color: var(--ink-soft); position: relative; transition: color 0.2s; padding-bottom: 2px; }
.nav__links a::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 1px; background: var(--rosso); transition: width 0.25s ease; }
.nav__links a:hover, .nav__links a.active { color: var(--ink); }
.nav__links a:hover::after, .nav__links a.active::after { width: 100%; }
.nav__toggle { display: none; background: none; border: none; cursor: pointer; width: 28px; height: 20px; position: relative; z-index: 201; }
.nav__toggle span, .nav__toggle span::before, .nav__toggle span::after { display: block; position: absolute; width: 24px; height: 1px; background: var(--ink); transition: all 0.25s ease; left: 0; }
.nav__toggle span { top: 50%; transform: translateY(-50%); }
.nav__toggle span::before { content: ''; top: -7px; }
.nav__toggle span::after  { content: ''; top:  7px; }
.nav__toggle.open span { background: transparent; }
.nav__toggle.open span::before { top: 0; transform: rotate(45deg); }
.nav__toggle.open span::after  { top: 0; transform: rotate(-45deg); }

/* ── HERO ──────────────────────────────────────────────────────────────── */
.hero {
  min-height: 100svh;
  padding: calc(var(--nav-h) + 3rem) var(--side) 4rem;
  display: grid; grid-template-rows: auto 1fr auto; gap: 3rem;
}
.hero__status { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; padding-bottom: 0.5rem; }
.hero__status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--rosso); flex-shrink: 0; animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.3); } }
.hero__status-text { font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-soft); }

.hero__epigraph { align-self: center; max-width: 54rem; }
.hero__quote { font-family: var(--font-display); font-size: clamp(1.7rem, 4.5vw, 3.4rem); font-style: italic; font-weight: 300; line-height: 1.28; letter-spacing: -0.01em; color: var(--ink); position: relative; }
.hero__quote::before { content: '\201C'; position: absolute; left: -0.4em; top: 0.1em; font-size: 5em; line-height: 1; color: var(--carta-deep); font-family: var(--font-display); z-index: -1; }
.hero__attribution { margin-top: 1.25rem; font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.1em; color: var(--grigio); }

.hero__footer { border-top: 1px solid var(--grigio-light); padding-top: 2rem; display: flex; align-items: flex-end; justify-content: space-between; flex-wrap: wrap; gap: 2rem; }
.hero__title { font-family: var(--font-display); font-size: clamp(2.2rem, 7vw, 6rem); font-weight: 300; letter-spacing: -0.025em; line-height: 1; }
.hero__meta { margin-top: 0.8rem; font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--grigio); display: flex; gap: 1.5rem; flex-wrap: wrap; }
.hero__meta span::before { content: '·'; margin-right: 1.5rem; color: var(--grigio-light); }
.hero__meta span:first-child::before { display: none; }

.hero__cta { display: flex; flex-direction: column; gap: 0.75rem; align-items: flex-start; }
.hero__cta-group { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.hero__cta-sub { font-family: var(--font-ui); font-size: 0.55rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--grigio); }

/* ── PAGE HERO ─────────────────────────────────────────────────────────── */
.page-hero { padding: calc(var(--nav-h) + 4rem) var(--side) 3rem; border-bottom: 1px solid var(--grigio-light); }
.page-hero__label { font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--grigio); margin-bottom: 1rem; display: block; }
.page-hero__title { font-family: var(--font-display); font-size: clamp(2rem, 5vw, 4.5rem); font-weight: 300; letter-spacing: -0.02em; line-height: 1.1; }
.page-hero__sub { font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--grigio); margin-top: 0.75rem; }

/* ── SECTIONS ──────────────────────────────────────────────────────────── */
.section       { padding: 6rem var(--side); }
.section--alt  { background: var(--carta-warm); padding: 6rem var(--side); }
.section--dark { background: var(--ink); color: var(--carta); padding: 5rem var(--side); }
.section--sm   { padding: 4rem var(--side); }
.section__label { font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--grigio); display: block; margin-bottom: 1.25rem; }
.section--dark .section__label { color: var(--grigio); }
.divider { border: none; border-top: 1px solid var(--grigio-light); }

/* ── TYPO HELPERS ──────────────────────────────────────────────────────── */
.display-lg { font-family: var(--font-display); font-size: clamp(1.8rem, 4vw, 3.5rem); font-weight: 300; letter-spacing: -0.02em; line-height: 1.15; }
.display-md { font-family: var(--font-display); font-size: clamp(1.4rem, 2.5vw, 2.2rem); font-weight: 400; letter-spacing: -0.015em; line-height: 1.2; }
.body-lg    { font-size: 1.1rem; line-height: 1.85; color: var(--ink-soft); max-width: var(--max-prose); }
.body-lg p + p { margin-top: 1.25rem; }
.caption    { font-family: var(--font-ui); font-size: 0.6rem; letter-spacing: 0.12em; color: var(--grigio); }

/* ── BUTTONS ───────────────────────────────────────────────────────────── */
.btn { display: inline-block; font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.22em; text-transform: uppercase; text-decoration: none; padding: 0.95rem 2.2rem; cursor: pointer; border: none; transition: all 0.2s; white-space: nowrap; }
.btn--primary         { background: var(--ink); color: var(--carta); }
.btn--primary:hover   { background: var(--rosso); }
.btn--outline         { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.btn--outline:hover   { background: var(--ink); color: var(--carta); }
.btn--outline-light   { background: transparent; color: var(--carta); border: 1px solid rgba(244,239,228,0.35); }
.btn--outline-light:hover { background: var(--carta); color: var(--ink); }
.btn--oro             { background: var(--oro); color: var(--ink); }
.btn--oro:hover       { background: var(--oro-light); }
.btn--ghost           { background: transparent; color: var(--ink-soft); padding: 0.95rem 0; text-decoration: underline; text-underline-offset: 4px; text-decoration-color: var(--grigio-light); transition: text-decoration-color 0.2s; }
.btn--ghost:hover     { text-decoration-color: var(--rosso); }

/* ── BOOK COVER ────────────────────────────────────────────────────────── */
.book-cover { flex-shrink: 0; aspect-ratio: 5 / 8; position: relative; overflow: hidden; box-shadow: 14px 20px 56px rgba(28,25,21,0.24), 4px 6px 18px rgba(28,25,21,0.10); }
.book-cover--lg { width: clamp(200px, 22vw, 310px); }
.book-cover--md { width: clamp(160px, 16vw, 240px); }
.book-cover__inner { width: 100%; height: 100%; background: linear-gradient(155deg, #1C1915 0%, #282118 45%, #1C1915 100%); padding: 2rem 1.75rem; display: flex; flex-direction: column; }
.book-cover__author { font-family: var(--font-ui); font-size: 0.45rem; letter-spacing: 0.22em; text-transform: uppercase; color: rgba(244,239,228,0.45); }
.book-cover__suit { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); font-size: 7.5rem; color: rgba(184,148,42,0.09); font-family: serif; line-height: 1; pointer-events: none; user-select: none; }
.book-cover__bottom { margin-top: auto; }
.book-cover__rule { height: 1px; background: var(--oro); margin-bottom: 1rem; }
.book-cover__title { font-family: var(--font-display); font-size: 1.75rem; font-weight: 300; color: var(--carta); line-height: 1.0; letter-spacing: -0.01em; }
.book-cover__genre { display: block; font-family: var(--font-ui); font-size: 0.45rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--oro); margin-top: 0.85rem; }

/* ── BOOK LAYOUT ───────────────────────────────────────────────────────── */
.book-grid { display: grid; grid-template-columns: auto 1fr; align-items: start; gap: clamp(3rem, 6vw, 7rem); }
.book-meta { display: flex; flex-direction: column; gap: 1.75rem; }
.book-details { border-top: 1px solid var(--grigio-light); padding-top: 1.5rem; display: flex; flex-direction: column; gap: 0.8rem; }
.book-detail-row { display: flex; gap: 2rem; align-items: baseline; }
.book-detail-val { font-size: 0.95rem; color: var(--ink-soft); }

/* ── CHAPTER CARDS ─────────────────────────────────────────────────────── */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1px; background: var(--grigio-light); border: 1px solid var(--grigio-light); }
.chapter-card { background: var(--carta-warm); padding: 2rem; transition: background 0.2s; cursor: default; }
.chapter-card:hover { background: var(--carta); }
.chapter-card__num   { font-family: var(--font-ui); font-size: 0.55rem; letter-spacing: 0.22em; color: var(--grigio); text-transform: uppercase; margin-bottom: 0.5rem; }
.chapter-card__suit  { font-size: 1.4rem; color: var(--rosso); margin-bottom: 0.75rem; display: block; }
.chapter-card__title { font-family: var(--font-display); font-size: 1.2rem; font-weight: 400; color: var(--ink); margin-bottom: 0.5rem; line-height: 1.2; }
.chapter-card__desc  { font-size: 0.88rem; color: var(--ink-faint); line-height: 1.6; }

/* ── BIO LAYOUT ────────────────────────────────────────────────────────── */
.bio-grid { display: grid; grid-template-columns: 300px 1fr; gap: clamp(3rem, 6vw, 7rem); align-items: start; }
.bio-photo { aspect-ratio: 4/5; overflow: hidden; }
.bio-photo__placeholder {
  width: 100%; height: 100%; min-height: 320px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(145deg, #2A2520, #1C1915);
  position: relative; overflow: hidden;
}
.bio-photo__placeholder::before {
  content: ''; position: absolute; inset: 0;
  background: repeating-linear-gradient(0deg, transparent 0, transparent 2px, rgba(244,239,228,0.02) 2px, rgba(244,239,228,0.02) 3px);
  pointer-events: none;
}
.bio-photo__placeholder span { font-family: var(--font-display); font-size: 5rem; font-style: italic; color: rgba(244,239,228,0.12); position: relative; z-index: 1; }
.bio-photo__note { font-family: var(--font-ui); font-size: 0.5rem; letter-spacing: 0.15em; color: rgba(244,239,228,0.3); text-transform: uppercase; position: absolute; bottom: 1rem; left: 50%; transform: translateX(-50%); z-index: 1; white-space: nowrap; }

.bio-text { display: flex; flex-direction: column; gap: 1.4rem; }
.bio-text p { font-size: 1.05rem; line-height: 1.85; color: var(--ink-soft); max-width: 60ch; }

/* ── CREDITS BLOCK ─────────────────────────────────────────────────────── */
.credits { background: var(--carta-warm); border: 1px solid var(--grigio-light); padding: 2rem; display: flex; flex-direction: column; gap: 0.5rem; }
.credits__title { font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--grigio); margin-bottom: 0.75rem; }
.credits__row { display: grid; grid-template-columns: 130px 1fr; gap: 1.5rem; align-items: baseline; padding: 0.75rem 0; border-bottom: 1px dotted var(--grigio-light); }
.credits__row:last-child { border-bottom: none; }
.credits__key  { font-family: var(--font-ui); font-size: 0.55rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--grigio); }
.credits__val  { font-size: 0.95rem; color: var(--ink); }
.credits__val em { color: var(--ink-faint); font-size: 0.85rem; font-style: normal; display: block; margin-top: 0.2rem; font-family: var(--font-ui); letter-spacing: 0.05em; }

/* ── BLURBS ────────────────────────────────────────────────────────────── */
.blurb { border-left: 3px solid var(--rosso); padding: 1.25rem 1.5rem; background: var(--carta-warm); }
.blurb__quote { font-family: var(--font-display); font-style: italic; font-weight: 400; font-size: 1.15rem; line-height: 1.55; color: var(--ink); }
.blurb__attribution { margin-top: 0.75rem; font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--grigio); }

/* ── DUAL COLUMNS ──────────────────────────────────────────────────────── */
.dual-grid { display: grid; grid-template-columns: 1fr 1px 1fr; }
.dual-col  { padding: 4rem var(--side); }
.dual-sep  { background: var(--grigio-light); margin: 3rem 0; }

/* ── FILM GRID ─────────────────────────────────────────────────────────── */
.films-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 1.25rem; }
.film-card { border: 1px solid var(--grigio-light); padding: 1.75rem; background: var(--carta-warm); transition: border-color 0.2s, transform 0.2s; }
.film-card:hover { border-color: var(--grigio); transform: translateY(-2px); }
.film-card__year     { font-family: var(--font-ui); font-size: 0.55rem; letter-spacing: 0.2em; color: var(--grigio); margin-bottom: 0.5rem; }
.film-card__title    { font-family: var(--font-display); font-size: 1.2rem; font-style: italic; color: var(--ink); margin-bottom: 0.25rem; }
.film-card__director { font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.1em; color: var(--grigio); margin-bottom: 0.75rem; }
.film-card__note     { font-size: 0.88rem; color: var(--ink-faint); line-height: 1.6; }

/* ── GLOSSARY ──────────────────────────────────────────────────────────── */
.glossary { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); background: var(--grigio-light); gap: 1px; border: 1px solid var(--grigio-light); }
.glossary__entry { background: var(--carta-warm); padding: 1.75rem; }
.glossary__term  { font-family: var(--font-display); font-size: 1.3rem; font-style: italic; color: var(--ink); display: block; margin-bottom: 0.5rem; }
.glossary__def   { font-size: 0.9rem; color: var(--ink-soft); line-height: 1.65; }

/* ── NEWSLETTER ────────────────────────────────────────────────────────── */
.nl-block { max-width: 52rem; }
.nl-block h2 { color: var(--carta); }
.nl-block p  { color: var(--carta-deep); max-width: 44ch; }
.nl-form { display: flex; max-width: 420px; border: 1px solid rgba(244,239,228,0.28); margin-top: 2rem; }
.nl-form input { flex: 1; background: transparent; border: none; outline: none; padding: 0.9rem 1.2rem; font-family: var(--font-body); font-size: 0.95rem; color: var(--carta); }
.nl-form input::placeholder { color: rgba(244,239,228,0.35); }
.nl-privacy { margin-top: 0.75rem; font-family: var(--font-ui); font-size: 0.5rem; letter-spacing: 0.1em; color: rgba(244,239,228,0.4); }

/* ── PRESS KIT PAGE ────────────────────────────────────────────────────── */
.press-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1px; background: var(--grigio-light); border: 1px solid var(--grigio-light); }
.press-card { background: var(--carta-warm); padding: 2rem; display: flex; flex-direction: column; gap: 1rem; transition: background 0.2s; text-decoration: none; color: inherit; }
.press-card:hover { background: var(--carta); }
.press-card__icon { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: var(--ink); color: var(--oro); font-family: var(--font-display); font-size: 1.2rem; border-radius: 2px; }
.press-card__title { font-family: var(--font-display); font-size: 1.25rem; font-weight: 400; color: var(--ink); }
.press-card__desc  { font-size: 0.88rem; color: var(--ink-faint); line-height: 1.6; flex-grow: 1; }
.press-card__link  { font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--rosso); margin-top: 0.5rem; }

/* ── CONTACT ROUTE CARDS ───────────────────────────────────────────────── */
.route-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.route-card { border: 1px solid var(--grigio-light); background: var(--carta-warm); padding: 2rem; display: flex; flex-direction: column; gap: 1rem; transition: border-color 0.2s, transform 0.2s; text-decoration: none; color: inherit; }
.route-card:hover { border-color: var(--rosso); transform: translateY(-3px); }
.route-card__tag   { font-family: var(--font-ui); font-size: 0.55rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--rosso); }
.route-card__title { font-family: var(--font-display); font-size: 1.4rem; font-weight: 400; color: var(--ink); }
.route-card__desc  { font-size: 0.92rem; color: var(--ink-faint); flex-grow: 1; line-height: 1.6; }
.route-card__cta   { font-family: var(--font-ui); font-size: 0.55rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink); }

/* ── CONTACT PAGE ──────────────────────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: clamp(3rem, 6vw, 7rem); align-items: start; }
.contact-details { display: flex; flex-direction: column; gap: 0.85rem; margin-top: 1.5rem; }
.contact-row { display: flex; gap: 2rem; align-items: baseline; }
.contact-link { text-decoration: underline; text-underline-offset: 3px; transition: color 0.2s; }
.contact-link:hover { color: var(--rosso); }
.form { display: flex; flex-direction: column; gap: 1.2rem; }
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field label { font-family: var(--font-ui); font-size: 0.55rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--grigio); }
.field input, .field textarea, .field select { background: var(--carta-warm); border: 1px solid var(--grigio-light); padding: 0.75rem 1rem; font-family: var(--font-body); font-size: 0.95rem; color: var(--ink); outline: none; resize: vertical; transition: border-color 0.2s; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--ink); }

/* ── FOOTER ────────────────────────────────────────────────────────────── */
.footer { background: var(--ink); color: var(--carta); padding: 3rem var(--side); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1.5rem; }
.footer__links { display: flex; gap: 2rem; list-style: none; flex-wrap: wrap; }
.footer__links a { font-family: var(--font-ui); font-size: 0.55rem; letter-spacing: 0.18em; text-transform: uppercase; text-decoration: none; color: var(--grigio); transition: color 0.2s; }
.footer__links a:hover { color: var(--carta); }
.footer__copy { font-family: var(--font-ui); font-size: 0.55rem; letter-spacing: 0.1em; color: var(--grigio); }

/* ── ANIMATIONS ────────────────────────────────────────────────────────── */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.anim { opacity: 0; transform: translateY(20px); transition: opacity 0.65s ease, transform 0.65s ease; }
.anim.in { opacity: 1; transform: translateY(0); }
.anim-d1 { transition-delay: 0.1s; }
.anim-d2 { transition-delay: 0.2s; }
.anim-d3 { transition-delay: 0.3s; }
.hero__status, .hero__epigraph, .hero__footer { animation: fadeInUp 0.8s ease both; }
.hero__epigraph { animation-delay: 0.1s; }
.hero__footer   { animation-delay: 0.3s; }

/* ── UTILITY ───────────────────────────────────────────────────────────── */
.mt-xs { margin-top: 0.25rem; }
.mt-sm { margin-top: 0.5rem; }
.mt-md { margin-top: 1rem; }
.mt-lg { margin-top: 2rem; }
.mt-xl { margin-top: 4rem; }
.mb-md { margin-bottom: 1rem; }
.mb-lg { margin-bottom: 2rem; }
.prose { max-width: var(--max-prose); }
.c-grigio { color: var(--grigio); }
.c-rosso  { color: var(--rosso);  }
.c-soft   { color: var(--ink-soft); }

/* ── RESPONSIVE ────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .book-grid { grid-template-columns: 1fr; }
  .book-cover--lg { width: 100%; max-width: 260px; }
  .bio-grid { grid-template-columns: 1fr; }
  .dual-grid { grid-template-columns: 1fr; }
  .dual-sep  { width: 100%; height: 1px; margin: 0; }
  .dual-col  { padding: 3rem var(--side); }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav { padding: 0 1.5rem; }
  .nav__links { display: none; position: fixed; inset: 0; background: var(--carta); flex-direction: column; align-items: center; justify-content: center; gap: 2.5rem; z-index: 200; }
  .nav__links.open { display: flex; }
  .nav__links a { font-size: 0.75rem; }
  .nav__toggle { display: flex; align-items: center; justify-content: center; }
  .hero { padding-top: 6rem; }
  .hero__footer { flex-direction: column; align-items: flex-start; }
  .footer { flex-direction: column; align-items: flex-start; }
  .credits__row { grid-template-columns: 1fr; gap: 0.25rem; }
}