/* =========================================================
   Antonio Trevisi — Photography
   Minimal editorial system. The site is a quiet container;
   the photographs carry the colour.
   ========================================================= */

:root {
  --paper:      #ffffff;   /* pure white */
  --ink:        #16140f;   /* near-black, soft */
  --ink-soft:   #6b665c;   /* muted captions / meta */
  --line:       #e7e3da;   /* hairline rules */
  --accent:     #b8482b;   /* terracotta — used with extreme restraint */
  --paper-2:    #f5f3ee;   /* faint section fill */

  --measure: 68ch;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --max: 1320px;

  --display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --step--1: clamp(0.78rem, 0.74rem + 0.18vw, 0.88rem);
  --step-0:  clamp(0.98rem, 0.94rem + 0.2vw, 1.08rem);
  --step-1:  clamp(1.3rem, 1.1rem + 0.9vw, 1.85rem);
  --step-2:  clamp(1.9rem, 1.4rem + 2.4vw, 3.4rem);
  --step-3:  clamp(2.8rem, 1.8rem + 5vw, 6rem);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* If JS is disabled, never hide content behind the reveal animation. */
.no-js .reveal { opacity: 1; transform: none; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: var(--step-0);
  line-height: 1.6;
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- Eyebrow / labels ---------- */
.eyebrow {
  font-size: var(--step--1);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 500;
}

/* =========================================================
   Header / nav
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.2) blur(8px);
  border-bottom: 1px solid var(--line);
}
/* Transparent header overlaid on the full-screen hero */
.site-header--transparent {
  position: fixed;
  left: 0; right: 0;
  background: transparent;
  backdrop-filter: none;
  border-bottom: 1px solid rgba(255,255,255,0.18);
}
.site-header--transparent .brand,
.site-header--transparent .nav a,
.site-header--transparent .nav-toggle { color: #fff; }
.site-header--transparent .brand span { color: rgba(255,255,255,0.7); }
.site-header--transparent .nav a { color: rgba(255,255,255,0.85); }
.site-header--transparent .nav a:hover,
.site-header--transparent .nav a[aria-current="page"] { color: #fff; }
.site-header--transparent .nav__lang {
  border-color: rgba(255,255,255,0.35);
  color: rgba(255,255,255,0.85) !important;
}
.site-header--transparent .nav__lang:hover { border-color: #fff; color: #fff !important; }
.site-header__inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.05rem;
}
.brand {
  font-family: var(--display);
  font-weight: 500;
  font-size: var(--step-0);
  letter-spacing: -0.01em;
  line-height: 1;
  text-transform: none;
}
.brand span { color: var(--ink-soft); font-style: normal; font-weight: 400; }

.nav {
  display: flex;
  gap: clamp(0.9rem, 2vw, 2rem);
  align-items: baseline;
  flex-wrap: wrap;
}
.nav a {
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  position: relative;
  padding-block: 0.2rem;
  transition: color 0.25s ease;
}
.nav a:hover,
.nav a[aria-current="page"] { color: var(--ink); }
.nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -0.15rem;
  height: 1px;
  background: var(--accent);
}

/* Hamburger toggle — hidden on desktop */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  margin: -0.4rem;
  color: var(--ink);
}
.nav-toggle svg { display: block; width: 1.5rem; height: 1.5rem; }

@media (max-width: 720px) {
  .site-header__inner { align-items: center; }
  .nav-toggle { display: block; }
  .site-header .nav {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    height: 100dvh;
    background: var(--paper);
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    justify-content: center;
    align-items: flex-start;
    gap: 0.4rem;
    padding: var(--gutter);
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 60;
  }
  .site-header .nav.is-open { transform: translateX(0); }
  .site-header .nav a {
    font-family: var(--display);
    font-size: var(--step-2);
    text-transform: none;
    letter-spacing: -0.01em;
    color: var(--ink);
    padding-block: 0.5rem;
  }
  .site-header .nav a[aria-current="page"]::after { display: none; }
  .site-header .nav a[aria-current="page"] { color: var(--accent); }
  .nav__close {
    position: absolute;
    top: 1.05rem; right: var(--gutter);
    background: none; border: none; cursor: pointer;
    color: var(--ink); padding: 0.4rem; margin: -0.4rem;
  }
  .nav__close svg { width: 1.6rem; height: 1.6rem; display: block; }
}
@media (min-width: 721px) {
  .nav__close { display: none; }
}

/* =========================================================
   Full-screen hero
   ========================================================= */
.hero-full {
  position: relative;
  height: 100vh;
  height: 100svh;
  min-height: 600px;
  overflow: hidden;
}
.hero-full__media { position: absolute; inset: 0; }
.hero-full__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-full__media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to bottom,
    rgba(0,0,0,0.32) 0%,
    rgba(0,0,0,0.12) 35%,
    rgba(0,0,0,0.20) 70%,
    rgba(0,0,0,0.55) 100%);
}
.hero-full__overlay {
  position: absolute;
  left: 0; right: 0; bottom: clamp(4rem, 12vh, 9rem);
  color: #fff;
  z-index: 2;
}
.hero-full__eyebrow {
  font-size: var(--step--1);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-weight: 400;
  margin: 0 0 1.2rem;
  color: rgba(255,255,255,0.85);
}
.hero-full__title {
  font-weight: 300;
  font-size: clamp(2.6rem, 1.5rem + 5.5vw, 6.5rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  margin: 0;
  max-width: 16ch;
}
.hero-full__lede {
  margin-top: 1.6rem;
  max-width: 42ch;
  font-size: var(--step-1);
  line-height: 1.45;
  font-weight: 300;
  color: rgba(255,255,255,0.92);
}
.hero-full__meta {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
}
.hero-full__scroll {
  position: absolute;
  bottom: 1.6rem; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255,255,255,0.8);
  animation: bob 2.4s ease-in-out infinite;
}
.hero-full__scroll svg { width: 1.6rem; height: 1.6rem; display: block; }
@keyframes bob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-full__scroll { animation: none; }
}

/* =========================================================
   Index — the signature spine
   ========================================================= */
.index {
  padding-block: clamp(2.5rem, 7vh, 5rem);
}
.index__list { display: grid; gap: 0; }
.index__item {
  display: grid;
  grid-template-columns: 3.5rem 1fr auto;
  align-items: center;
  gap: 1rem;
  padding-block: clamp(1.1rem, 3vw, 2rem);
  border-top: 1px solid var(--line);
  transition: padding-left 0.3s ease;
}
.index__item:last-child { border-bottom: 1px solid var(--line); }
.index__item:hover { padding-left: 0.6rem; }
.index__num {
  font-family: var(--display);
  font-size: var(--step-0);
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}
.index__name {
  font-family: var(--display);
  font-size: var(--step-2);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1;
}
.index__name em { font-style: normal; }
.index__count {
  font-size: var(--step--1);
  color: var(--ink-soft);
  letter-spacing: 0.05em;
}
.index__item:hover .index__name { color: var(--accent); }

/* =========================================================
   Gallery
   ========================================================= */
.page-head {
  padding-block: clamp(2.5rem, 8vh, 5.5rem) clamp(1.5rem, 4vh, 3rem);
  border-bottom: 1px solid var(--line);
}
.page-head__num {
  font-family: var(--display);
  color: var(--accent);
  font-size: var(--step-1);
  font-variant-numeric: tabular-nums;
}
.page-head__title {
  font-family: var(--display);
  font-weight: 300;
  font-size: var(--step-3);
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0.4rem 0 0;
}
.page-head__title em { font-style: normal; }
.page-head__lede {
  margin-top: 1.3rem;
  max-width: var(--measure);
  color: var(--ink-soft);
  font-size: var(--step-1);
  line-height: 1.45;
}

.gallery {
  padding-block: clamp(2rem, 6vh, 4rem);
  columns: 3 280px;
  column-gap: clamp(0.6rem, 1.6vw, 1.2rem);
}
.gallery figure {
  margin: 0 0 clamp(0.6rem, 1.6vw, 1.2rem);
  break-inside: avoid;
  position: relative;
  background: var(--paper-2);
  overflow: hidden;
}
.gallery img {
  width: 100%;
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.8s ease;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none; /* disables iOS long-press save sheet */
  pointer-events: none;        /* clicks go to the figure, not the img */
}
.lightbox img {
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}
.gallery figure:hover img { transform: scale(1.03); }
.gallery figcaption {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  padding: 0.7rem 0.9rem;
  font-size: var(--step--1);
  color: #fff;
  background: linear-gradient(to top, rgba(0,0,0,0.55), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
  letter-spacing: 0.03em;
}
.gallery figure:hover figcaption,
.gallery figure:focus-within figcaption { opacity: 1; }

.gallery--empty {
  columns: auto;
  padding-block: clamp(3rem, 10vh, 6rem);
  text-align: center;
  color: var(--ink-soft);
}
.gallery--empty code {
  background: var(--paper-2);
  padding: 0.15em 0.45em;
  border-radius: 3px;
  font-size: 0.9em;
}

/* =========================================================
   Lightbox
   ========================================================= */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(18,16,12,0.94);
  display: none;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vw, 3rem);
}
.lightbox[open], .lightbox.is-open { display: flex; }
.lightbox img {
  max-width: 100%;
  max-height: 88vh;
  object-fit: contain;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.lightbox__close,
.lightbox__nav {
  position: absolute;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  font-family: var(--display);
  opacity: 0.7;
  transition: opacity 0.2s ease;
}
.lightbox__close:hover,
.lightbox__nav:hover { opacity: 1; }
.lightbox__close { top: 1.2rem; right: 1.5rem; font-size: 2rem; line-height: 1; }
.lightbox__nav { top: 50%; transform: translateY(-50%); font-size: 2.5rem; padding: 1rem; }
.lightbox__nav--prev { left: 0.5rem; }
.lightbox__nav--next { right: 0.5rem; }
.lightbox__count {
  position: absolute;
  bottom: 1.3rem; left: 50%; transform: translateX(-50%);
  color: #fff; opacity: 0.6;
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  font-variant-numeric: tabular-nums;
}

/* =========================================================
   Prose sections (About / Contact)
   ========================================================= */
.prose {
  padding-block: clamp(2.5rem, 7vh, 5rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
}
@media (min-width: 820px) {
  .prose { grid-template-columns: 1fr 0.5fr; align-items: start; }
}
.prose__body p {
  max-width: 58ch;
  margin: 0 0 1.15rem;
  font-size: var(--step-0);
  line-height: 1.7;
}
.prose__body p:first-child {
  font-size: var(--step-1);
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: 1.5rem;
}
.prose__body p:last-child { margin-bottom: 0; }
.prose__aside {
  font-size: var(--step-0);
  position: sticky;
  top: 6rem;
}
.prose__aside dt {
  font-size: var(--step--1);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 1.6rem;
}
.prose__aside dt:first-child { margin-top: 0; }
.prose__aside dd {
  margin: 0.3rem 0 0;
  font-family: var(--display);
  font-size: var(--step-0);
}

/* ---------- About portrait photo ---------- */
.prose--portrait {
  align-items: start;
}
@media (min-width: 820px) {
  .prose--portrait { grid-template-columns: 1fr 0.7fr; }
}
.prose__portrait { margin: 0; }
.prose__portrait figure {
  margin: 0;
  background: var(--paper-2);
  overflow: hidden;
}
.prose__portrait img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  display: block;
}
.prose__contact {
  margin-top: 2rem !important;
  font-size: var(--step-0) !important;
}
.prose__contact a {
  border-bottom: 1px solid var(--accent);
}
.prose__contact a:hover { color: var(--accent); }

/* ---------- Contact form ---------- */
.form { max-width: 34rem; margin-top: 1rem; }
.field { margin-bottom: 1.4rem; }
.field label {
  display: block;
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 0.5rem;
}
.field input,
.field textarea {
  width: 100%;
  font: inherit;
  color: var(--ink);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--ink);
  padding: 0.6rem 0;
  border-radius: 0;
}
.field textarea { resize: vertical; min-height: 6rem; }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-bottom-color: var(--accent);
}
.field input::placeholder,
.field textarea::placeholder { color: var(--line); }

.btn {
  display: inline-block;
  font: inherit;
  font-size: var(--step--1);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  padding: 0.85rem 2rem;
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease;
}
.btn:hover { background: var(--accent); border-color: var(--accent); }

.form__note {
  margin-top: 1rem;
  font-size: var(--step--1);
  color: var(--ink-soft);
}

/* ---------- Language switch ---------- */
.nav__lang {
  font-size: var(--step--1) !important;
  letter-spacing: 0.12em;
  border: 1px solid var(--line);
  padding: 0.25rem 0.55rem !important;
  border-radius: 2px;
  color: var(--ink-soft) !important;
}
.nav__lang:hover { color: var(--ink) !important; border-color: var(--ink); }

/* =========================================================
   Footer
   ========================================================= */
.site-footer {
  margin-top: clamp(3rem, 10vh, 7rem);
  border-top: 1px solid var(--line);
  padding-block: clamp(2rem, 5vh, 3.5rem) clamp(1.5rem, 3vh, 2.5rem);
}
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem 2rem;
}
.site-footer .brand { font-size: var(--step-1); }
.site-footer__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  font-size: var(--step--1);
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}
.site-footer__meta a:hover { color: var(--accent); }

/* ---------- Instagram icon ---------- */
.ig-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.25s ease;
}
.ig-link svg { width: 1.05em; height: 1.05em; }
.ig-link:hover { color: var(--accent); }
.prose__aside .ig-link {
  font-family: var(--display);
  font-size: var(--step-0);
}

/* ---------- focus visibility ---------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- reveal-on-scroll ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-in { opacity: 1; transform: none; }