/* ================================================================
   MONTALBANO TRAIL AREA — Design System
   ================================================================ */

:root {
  /* Palette */
  --forest:  #1B3426;
  --forest-soft: #2A4A38;
  --amber:   #D4853A;
  --amber-soft: #E89C52;
  --sand:    #E8DDD0;
  --cream:   #FAF7F2;
  --dark:    #1A1A18;
  --line:    rgba(26, 26, 24, 0.12);
  --line-strong: rgba(26, 26, 24, 0.24);

  /* Type */
  --serif: 'Playfair Display', Georgia, serif;
  --sans:  'DM Sans', system-ui, -apple-system, sans-serif;
  --mono:  'DM Mono', 'IBM Plex Mono', ui-monospace, monospace;

  /* Scale */
  --step--1: clamp(0.78rem, 0.76rem + 0.10vw, 0.86rem);
  --step-0:  clamp(0.95rem, 0.92rem + 0.15vw, 1.05rem);
  --step-1:  clamp(1.15rem, 1.08rem + 0.35vw, 1.35rem);
  --step-2:  clamp(1.50rem, 1.30rem + 1.00vw, 2.10rem);
  --step-3:  clamp(2.10rem, 1.60rem + 2.50vw, 3.60rem);
  --step-4:  clamp(2.80rem, 2.00rem + 4.00vw, 5.40rem);

  /* Layout */
  --maxw: 1280px;
  --pad-x: clamp(1.25rem, 4vw, 3rem);
  --gap-s: 0.75rem;
  --gap-m: 1.5rem;
  --gap-l: 3rem;
  --gap-xl: 6rem;
  --radius: 4px;
}

/* ================================================================
   Reset
   ================================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; }
img, svg, video { display: block; max-width: 100%; height: auto; }
button { font: inherit; cursor: pointer; }
a { color: inherit; }

/* ================================================================
   Base
   ================================================================ */
body {
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.55;
  color: var(--dark);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  color: var(--forest);
}

h1 { font-size: var(--step-4); letter-spacing: -0.025em; }
h2 { font-size: var(--step-3); letter-spacing: -0.02em; }
h3 { font-size: var(--step-2); }
h4 { font-size: var(--step-1); }

p { margin: 0 0 1em; max-width: 65ch; }

.label {
  font-family: var(--mono);
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 500;
}

.lede {
  font-size: var(--step-1);
  line-height: 1.45;
  color: var(--forest);
  max-width: 60ch;
}

/* ================================================================
   Layout primitives
   ================================================================ */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--pad-x);
}

.section {
  padding-block: clamp(3.5rem, 8vw, 7rem);
}

.section--tight { padding-block: clamp(2rem, 5vw, 4rem); }

.section--forest {
  background: var(--forest);
  color: var(--cream);
}
.section--forest h1, .section--forest h2, .section--forest h3 { color: var(--cream); }

.section--sand { background: var(--sand); }

.row {
  display: grid;
  gap: var(--gap-l);
}

@media (min-width: 720px) {
  .row--2 { grid-template-columns: 1fr 1fr; }
  .row--12-aside { grid-template-columns: 2fr 1fr; }
}

/* ================================================================
   Header / Nav
   ================================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 247, 242, 0.92);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--forest);
}
.brand__mark {
  font-family: var(--serif);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1;
}
.brand__sub {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--amber);
}
@media (max-width: 540px) { .brand__sub { display: none; } }

.nav__menu {
  display: flex;
  gap: clamp(1rem, 2vw, 2rem);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav__menu a {
  text-decoration: none;
  color: var(--forest);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding-block: 0.4rem;
}
.nav__menu a::after {
  content: '';
  position: absolute;
  left: 0; right: 100%; bottom: 0;
  height: 1px;
  background: var(--amber);
  transition: right 0.25s ease;
}
.nav__menu a:hover::after,
.nav__menu a[aria-current="page"]::after { right: 0; }
.nav__menu a[aria-current="page"] { color: var(--amber); }

@media (max-width: 640px) {
  .nav__menu { gap: 0.9rem; font-size: 0.85rem; }
  .nav__menu a { font-size: 0.85rem; }
}

/* ================================================================
   Hero
   ================================================================ */
.hero {
  position: relative;
  min-height: clamp(520px, 78vh, 760px);
  display: grid;
  align-items: end;
  padding-block: clamp(4rem, 12vh, 8rem);
  color: var(--cream);
  overflow: hidden;
  isolation: isolate;
  background: linear-gradient(180deg, #2a4a38 0%, #1B3426 100%);
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image: var(--hero-img, none);
  background-size: cover;
  background-position: center;
  z-index: -2;
  opacity: 0.95;
}
.hero::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(27,52,38,0.25) 0%, rgba(27,52,38,0.55) 60%, rgba(27,52,38,0.85) 100%);
  z-index: -1;
}
.hero h1 { color: var(--cream); margin-bottom: 0.3em; }
.hero .label { color: var(--amber); margin-bottom: 1.2rem; display: inline-block; }
.hero p { color: var(--cream); max-width: 38ch; opacity: 0.92; }
.hero__actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

/* Compact hero (sub-pages) */
.hero--compact { min-height: clamp(320px, 42vh, 440px); }

/* ================================================================
   Buttons
   ================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: transform 0.15s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--amber {
  background: var(--amber);
  color: var(--dark);
}
.btn--amber:hover { background: var(--amber-soft); }
.btn--ghost {
  background: transparent;
  color: var(--cream);
  border-color: rgba(250, 247, 242, 0.5);
}
.btn--ghost:hover { background: rgba(250, 247, 242, 0.1); border-color: var(--cream); }
.btn--outline {
  background: transparent;
  color: var(--forest);
  border-color: var(--forest);
}
.btn--outline:hover { background: var(--forest); color: var(--cream); }
.btn--small { padding: 0.6rem 1rem; font-size: 0.85rem; }

/* ================================================================
   Eyebrow / Section heading
   ================================================================ */
.eyebrow {
  display: block;
  color: var(--amber);
  margin-bottom: 1.2rem;
}
.section--forest .eyebrow { color: var(--amber-soft); }

.section-head {
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
  max-width: 720px;
}
.section-head h2 { margin-bottom: 0.4em; }

/* ================================================================
   Trail cards
   ================================================================ */
.trail-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.trail-card {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  color: inherit;
  min-height: 200px;
}
.section--sand .trail-card { background: var(--cream); }
.trail-card:hover {
  border-color: var(--amber);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -15px rgba(27, 52, 38, 0.25);
}

.trail-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
}
.trail-card__name {
  font-family: var(--serif);
  font-size: 1.35rem;
  line-height: 1.2;
  color: var(--forest);
  margin: 0;
}
.trail-card__cat {
  font-family: var(--mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.3rem 0.55rem;
  border-radius: 2px;
  white-space: nowrap;
  flex-shrink: 0;
}
.cat--down   { background: var(--forest); color: var(--cream); }
.cat--joint  { background: var(--sand); color: var(--forest); }
.cat--ud     { background: var(--amber); color: var(--dark); }
.cat--up     { background: transparent; color: var(--forest); border: 1px solid var(--line-strong); }

.trail-card__meta {
  display: flex;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--forest-soft);
  flex-wrap: wrap;
  margin-top: auto;
}
.trail-card__meta span { display: inline-flex; align-items: baseline; gap: 0.3rem; }
.trail-card__meta strong { color: var(--forest); font-weight: 600; }

.trail-card__link {
  margin-top: 0.5rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--amber);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
}
.trail-card__link::after {
  content: '→';
  transition: transform 0.2s ease;
}
.trail-card:hover .trail-card__link::after { transform: translateX(3px); }

/* Trail group header */
.trail-group {
  margin-top: clamp(2.5rem, 5vw, 4rem);
}
.trail-group:first-of-type { margin-top: 0; }
.trail-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--line-strong);
  flex-wrap: wrap;
}
.trail-group__head h3 { margin: 0; font-size: var(--step-2); }
.trail-group__head p { margin: 0; color: var(--forest-soft); font-size: 0.95rem; max-width: 50ch; }
.trail-group__count {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* ================================================================
   Trail preview (home)
   ================================================================ */
.trail-preview {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* ================================================================
   Map embed
   ================================================================ */
.map-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--sand);
}
.map-wrap iframe {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: 0;
  filter: saturate(0.85);
}

/* ================================================================
   Visit page — info blocks
   ================================================================ */
.info-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.info-block {
  background: var(--cream);
  border: 1px solid var(--line);
  padding: 1.75rem;
  border-radius: var(--radius);
}
.info-block h4 {
  font-family: var(--serif);
  margin: 0 0 0.6em;
  color: var(--forest);
}
.info-block .label {
  display: block;
  color: var(--amber);
  margin-bottom: 1rem;
}
.info-block ul {
  margin: 0; padding: 0; list-style: none;
}
.info-block li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}
.info-block li:last-child { border-bottom: 0; }

/* ================================================================
   Contact form
   ================================================================ */
.form {
  display: grid;
  gap: 1.25rem;
  max-width: 560px;
}
.form__field { display: grid; gap: 0.4rem; }
.form__field label {
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--forest);
}
.form__field input,
.form__field textarea {
  font: inherit;
  font-family: var(--sans);
  padding: 0.85rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--cream);
  color: var(--dark);
  width: 100%;
  resize: vertical;
  transition: border-color 0.2s ease;
}
.form__field input:focus,
.form__field textarea:focus {
  outline: 0;
  border-color: var(--amber);
}
.form__field textarea { min-height: 140px; }
.form__success,
.form__error {
  font-family: var(--mono);
  font-size: 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  display: none;
}
.form__success { background: rgba(27,52,38,0.08); color: var(--forest); border-left: 3px solid var(--forest); }
.form__error   { background: rgba(212,133,58,0.12); color: var(--dark); border-left: 3px solid var(--amber); }
.form.is-success .form__success { display: block; }
.form.is-error .form__error { display: block; }

/* ================================================================
   Footer
   ================================================================ */
.site-footer {
  background: var(--dark);
  color: var(--cream);
  padding-block: clamp(3rem, 6vw, 5rem) 2rem;
}
.site-footer a { color: var(--cream); }
.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
  margin-bottom: 3rem;
}
@media (min-width: 720px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}
.footer__brand .brand__mark { color: var(--cream); font-size: 1.5rem; }
.footer__brand p { color: rgba(250, 247, 242, 0.7); margin-top: 0.6em; max-width: 36ch; }
.footer__col h5 {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin: 0 0 1rem;
  font-weight: 500;
}
.footer__col ul { list-style: none; padding: 0; margin: 0; }
.footer__col li { margin-bottom: 0.5rem; }
.footer__col a {
  text-decoration: none;
  color: rgba(250, 247, 242, 0.85);
  font-size: 0.95rem;
  transition: color 0.2s;
}
.footer__col a:hover { color: var(--amber); }

.footer__bottom {
  border-top: 1px solid rgba(250, 247, 242, 0.15);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(250, 247, 242, 0.55);
}

/* ================================================================
   Misc utilities
   ================================================================ */
.muted { color: var(--forest-soft); }
.center { text-align: center; }
.divider {
  border: 0;
  height: 1px;
  background: var(--line);
  margin-block: var(--gap-l);
}
.tags {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  margin: 1rem 0;
}
.tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
  color: var(--forest);
}

/* placeholder hero gradient when no image yet */
.hero--placeholder::before {
  background-image:
    radial-gradient(at 30% 20%, rgba(212,133,58,0.35) 0%, transparent 50%),
    radial-gradient(at 70% 80%, rgba(27,52,38,1) 0%, transparent 60%),
    linear-gradient(135deg, #2a4a38 0%, #1B3426 100%);
  opacity: 1;
}

/* ================================================================
   Language switcher — i18n
   ================================================================ */
html[lang="it"] .i18n-en { display: none; }
html[lang="en"] .i18n-it { display: none; }

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.lang-btn {
  font-family: var(--mono);
  font-size: 0.70rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  color: var(--forest);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  flex-shrink: 0;
  line-height: 1;
}
.lang-btn:hover {
  background: var(--forest);
  color: var(--cream);
  border-color: var(--forest);
}

/* ================================================================
   Mobile nav — hamburger
   ================================================================ */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
  flex-shrink: 0;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--forest);
  border-radius: 2px;
  transition: transform 0.22s ease, opacity 0.2s ease;
}
.nav__hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 680px) {
  .nav__hamburger { display: flex; }

  .nav > nav[aria-label] {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(250, 247, 242, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
    z-index: 40;
    padding: 0.25rem 0 0.75rem;
  }
  .nav > nav[aria-label].is-open { display: block; }

  .nav__menu {
    flex-direction: column;
    gap: 0;
    padding: 0 var(--pad-x);
    font-size: 1rem;
  }
  .nav__menu li { border-bottom: 1px solid var(--line); }
  .nav__menu a {
    display: block;
    padding: 0.8rem 0;
    font-size: 1rem;
  }
  .nav__menu a::after { display: none; }
}

/* ================================================================
   Partner cards
   ================================================================ */
.partner-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.partner-card {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  color: inherit;
}
.partner-card:hover {
  border-color: var(--amber);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -15px rgba(27, 52, 38, 0.25);
}
.section--sand .partner-card { background: var(--cream); }

.partner-card__cover {
  height: clamp(160px, 18vw, 210px);
  background-size: cover;
  background-position: center;
  background-color: var(--forest-soft);
  flex-shrink: 0;
  position: relative;
  transition: transform 0.4s ease;
  transform-origin: center;
}
.partner-card:hover .partner-card__cover { transform: scale(1.03); }
.partner-card__cover::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(27,52,38,0.3) 100%);
  pointer-events: none;
}

.partner-card__body {
  padding: 1.25rem 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}

.partner-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
}
.partner-card__name {
  font-family: var(--serif);
  font-size: 1.1rem;
  line-height: 1.25;
  color: var(--forest);
  margin: 0;
  font-weight: 500;
}
.partner-card__desc {
  font-size: 0.90rem;
  line-height: 1.55;
  color: var(--forest-soft);
  margin: 0;
  flex: 1;
  max-width: none;
}
.partner-card__link {
  margin-top: auto;
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--amber);
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.partner-card__link::after {
  content: '→';
  transition: transform 0.2s ease;
}
.partner-card:hover .partner-card__link::after { transform: translateX(3px); }

/* ================================================================
   Lang button — globe icon
   ================================================================ */
.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.lang-btn__globe { opacity: 0.65; flex-shrink: 0; }