/* ==========================================================================
   Igor Grigis - stile globale
   Struttura: variabili, reset, topbar, header/hero, contenuti, footer, media query
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Variabili
   -------------------------------------------------------------------------- */
:root {
  --color-accent: #f08a24;
  --color-accent-dark: #d9761a;
  --color-topbar: #3c4143;
  --color-text: #6a7175;
  --color-heading: #2f3436;
  --color-white: #ffffff;
  --color-bg: #ffffff;

  --font-base: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;

  --color-header-dark: #1b2a3a;                    /* logo e link su barra bianca */
  --color-header-link: #2c3a45;

  --container: 1150px;
  --topbar-h: 50px;
  --header-stuck-h: 78px;
  --hero-radius: 200px;

  --transition: 0.25s ease;
}

/* --------------------------------------------------------------------------
   2. Reset di base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; height: auto; }

a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent-dark); }

h1, h2, h3, h4 { color: var(--color-heading); margin: 0 0 .6em; line-height: 1.25; }

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

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  color: var(--color-heading);
  padding: 10px 18px;
}
.skip-link:focus { left: 10px; top: 10px; }

/* --------------------------------------------------------------------------
   3. Topbar (contatti + social)
   -------------------------------------------------------------------------- */
.topbar {
  background: var(--color-topbar);
  color: rgba(255, 255, 255, .85);
  font-size: 14px;
  position: relative;
  z-index: 30;
}

.topbar__inner {
  min-height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.topbar__contacts,
.topbar__social {
  display: flex;
  align-items: center;
  gap: 26px;
}

.topbar__contacts { flex-wrap: wrap; }

.topbar__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, .85);
}
.topbar__link:hover { color: var(--color-white); }
.topbar__link svg { width: 16px; height: 16px; flex: 0 0 auto; }

.topbar__social a {
  color: rgba(255, 255, 255, .85);
  display: inline-flex;
  align-items: center;                 /* centra l'icona quando l'anchor ha min-height */
  justify-content: center;
}
.topbar__social a:hover { color: var(--color-white); }
.topbar__social svg { width: 18px; height: 18px; flex: 0 0 auto; display: block; }

/* --------------------------------------------------------------------------
   4. Hero + navigazione
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  color: var(--color-white);
  background-color: #2b3a42;                       /* fallback se manca l'immagine */
  background-image: url("../images/hero.jpg");
  background-size: cover;
  background-position: center;
  border-bottom-right-radius: var(--hero-radius);
}

.hero::before {                                    /* velo scuro sopra la foto */
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, .32);
  border-bottom-right-radius: inherit;             /* segue la curva dell'hero */
}

.hero > * { position: relative; z-index: 2; }

/* --- header interno all'hero (stato iniziale, trasparente) --- */
.site-header {
  padding: 32px 0 0;
  z-index: 20;                                     /* sopra .hero__content (z-index 2) */
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header__inner { position: relative; }

.site-title {
  margin: 0;
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: color var(--transition);
}
.site-title a { color: var(--color-white); }
.site-title a:hover { color: var(--color-white); opacity: .85; }

/* logo immagine: nascosto su desktop, sostituisce il testo su mobile */
.site-title a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.site-logo { display: none; height: 34px; width: auto; }

.nav { margin-top: 18px; }

.nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 34px;
}

.nav__link {
  display: block;
  padding: 6px 2px;
  color: rgba(255, 255, 255, .92);
  font-size: 16px;
  position: relative;
}
.nav__link:hover { color: var(--color-white); }
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.nav__link:hover::after,
.nav__link.is-active::after { width: 100%; }

/* --- pulsante hamburger (solo mobile) --- */
.nav-toggle {
  display: none;
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: rgba(0, 0, 0, .25);
  color: var(--color-white);
  cursor: pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 11px;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle span { top: 20px; }
.nav-toggle span::before { top: -6px; left: 0; }
.nav-toggle span::after  { top: 6px;  left: 0; }

.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after  { transform: translateY(-6px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   4b. Navbar sticky (barra bianca fissa dopo lo scroll)
   -------------------------------------------------------------------------- */
.header-spacer { display: none; }
.header-spacer.is-active { display: block; }        /* evita il salto del layout */

.site-header.is-stuck {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0;
  background: var(--color-white);
  box-shadow: 0 2px 14px rgba(0, 0, 0, .1);
  animation: header-drop .3s ease;
}

@keyframes header-drop {
  from { transform: translateY(-100%); }
  to   { transform: translateY(0); }
}

.site-header.is-stuck .site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  min-height: var(--header-stuck-h);
}

.site-header.is-stuck .site-title {
  text-align: left;
  font-size: 21px;
}
.site-header.is-stuck .site-title a { color: var(--color-header-dark); }
.site-header.is-stuck .site-title a:hover { color: var(--color-accent); opacity: 1; }

/* anche su desktop, appena la barra si aggancia il testo lascia il posto al logo */
.site-header.is-stuck .site-logo { display: block; height: 40px; }
.site-header.is-stuck .site-title__text { display: none; }

.site-header.is-stuck .nav { margin-top: 0; }
.site-header.is-stuck .nav__list { justify-content: flex-end; gap: 10px 34px; }
.site-header.is-stuck .nav__link { color: var(--color-header-link); }
.site-header.is-stuck .nav__link:hover { color: var(--color-accent); }

.site-header.is-stuck .nav-toggle {
  background: transparent;
  color: var(--color-header-dark);
}

/* offset per gli anchor link quando la barra e' fissa */
html { scroll-padding-top: calc(var(--header-stuck-h) + 10px); }

/* --- contenuto centrale hero --- */
.hero__content {
  text-align: center;
  padding: 120px 20px 170px;
}

.hero__title {
  color: var(--color-white);
  font-size: clamp(48px, 9vw, 104px);
  font-weight: 300;
  letter-spacing: -1px;
  margin: 0 0 18px;
}

.hero__subtitle {
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 400;
  max-width: 720px;
  margin: 0 auto 38px;
  color: rgba(255, 255, 255, .95);
}

/* variante hero per le pagine interne */
.hero--inner { border-bottom-right-radius: 140px; }
.hero--inner .hero__content { padding: 70px 20px 110px; }
.hero--inner .hero__title { font-size: clamp(34px, 5.5vw, 60px); }

/* --------------------------------------------------------------------------
   5. Pulsanti
   -------------------------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 15px 34px;
  border: 0;
  border-radius: 40px;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 16px;
  font-family: inherit;
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}
.btn:hover {
  background: var(--color-accent-dark);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  border: 2px solid var(--color-white);
  padding: 13px 32px;
}
.btn--outline:hover { background: var(--color-white); color: var(--color-heading); }

/* --------------------------------------------------------------------------
   6. Sezioni di contenuto
   -------------------------------------------------------------------------- */
.section { padding: 100px 0; }
.section--tight { padding: 60px 0; }

.section__title {
  font-size: 30px;
  font-weight: 500;
  margin-bottom: 30px;
}

.text-block p {
  margin: 0 0 26px;
  text-align: justify;
}

.text-block h3 {
  font-size: 16px;
  font-weight: 700;
  font-style: italic;
  color: var(--color-heading);
  margin: 0 0 12px;
}

.text-block h3 + p { margin-bottom: 32px; }
.text-block > *:last-child { margin-bottom: 0; }

/* griglia riutilizzabile per le pagine interne (elenco escursioni, trek, ecc.) */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.card {
  border: 1px solid #e6e8e9;
  border-radius: 10px;
  overflow: hidden;
  background: var(--color-white);
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover {
  box-shadow: 0 12px 30px rgba(0, 0, 0, .08);
  transform: translateY(-3px);
}
.card__media { aspect-ratio: 3 / 2; background: #dfe3e4; }
.card__media img { width: 100%; height: 100%; object-fit: cover; }
.card__body { padding: 22px 24px 26px; }
.card__title { font-size: 19px; font-weight: 500; margin-bottom: 8px; }
.card__meta {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-accent);
  margin-bottom: 10px;
}
.card__body p { margin: 0 0 18px; }

/* --------------------------------------------------------------------------
   7. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  margin-top: 20px;
  background: var(--color-topbar);
  color: rgba(255, 255, 255, .72);
  font-size: 15px;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-top: 60px;
  padding-bottom: 50px;
}

.site-footer__name {
  margin: 0 0 12px;
  color: var(--color-white);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .5px;
}

.site-footer__claim {
  margin: 0 0 22px;
  max-width: 320px;
  line-height: 1.65;
}

.site-footer__title {
  margin: 0 0 18px;
  color: var(--color-white);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.site-footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-footer__list li { margin-bottom: 10px; }
.site-footer__list a { color: rgba(255, 255, 255, .72); }
.site-footer__list a:hover { color: var(--color-accent); }

.site-footer__mono {
  display: inline-block;
  color: var(--color-white);
  letter-spacing: .6px;
  font-variant-numeric: tabular-nums;
}

.site-footer__social { display: flex; gap: 14px; }
.site-footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 50%;
  color: rgba(255, 255, 255, .8);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.site-footer__social a:hover {
  color: var(--color-white);
  border-color: var(--color-accent);
  background: var(--color-accent);
}
.site-footer__social svg { width: 17px; height: 17px; display: block; }

.site-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding: 20px 0;
  font-size: 14px;
  text-align: center;
}
.site-footer__bottom p { margin: 0; }

/* --------------------------------------------------------------------------
   8. Media query
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  :root { --hero-radius: 110px; }

  .nav-toggle { display: block; }

  .nav__list { flex-direction: column; gap: 0; }
  .nav__link::after { display: none; }

  /* --- navbar bianca gia' dallo stato iniziale (non solo dopo lo scroll) --- */
  .site-header {
    padding: 0;
    background: var(--color-white);
    box-shadow: 0 1px 10px rgba(0, 0, 0, .08);
  }

  .site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 62px;
  }

  .site-title {
    text-align: left;
    font-size: 19px;
    padding: 0 55px 0 0;
  }
  .site-title a { color: var(--color-header-dark); }
  .site-title a:hover { color: var(--color-accent); opacity: 1; }

  /* su mobile il testo lascia il posto al logo */
  .site-logo { display: block; }
  .site-title__text { display: none; }

  .nav-toggle { background: transparent; color: var(--color-header-dark); }

  /* menu a tendina bianco sotto la barra */
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: -20px;
    right: -20px;
    margin-top: 0;
    padding: 10px;
    background: var(--color-white);
    border-radius: 0 0 10px 10px;
    box-shadow: 0 12px 22px rgba(0, 0, 0, .12);
  }
  .nav.is-open { display: block; }

  .nav__list { justify-content: flex-start; }
  .nav__link {
    padding: 13px 20px;
    text-align: left;
    color: var(--color-header-link);
  }
  .nav__link:hover,
  .nav__link.is-active { color: var(--color-accent); }

  /* lo stato sticky eredita lo stesso aspetto: cambia solo il posizionamento */
  .site-header.is-stuck { box-shadow: 0 2px 14px rgba(0, 0, 0, .12); }

  .hero__content { padding: 70px 20px 100px; }
  .hero--inner .hero__content { padding: 50px 20px 80px; }

  .section { padding: 60px 0; }
  .text-block p { text-align: left; }

  /* footer: da 4 colonne a 2 */
  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 34px;
    padding-top: 45px;
    padding-bottom: 35px;
  }
  .site-footer__col--brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  /* topbar su una sola riga: telefono a sinistra, mail e social a destra,
     aree di tocco da 44px, testo della mail nascosto per guadagnare spazio */
  .topbar { font-size: 13px; }

  .topbar__inner {
    min-height: 44px;
    gap: 10px;
    padding-top: 4px;
    padding-bottom: 4px;
  }

  .topbar__contacts { gap: 4px; flex-wrap: nowrap; }
  .topbar__social { gap: 4px; }

  .topbar__link,
  .topbar__social a {
    min-width: 40px;
    min-height: 40px;
    padding: 0 8px;
    align-items: center;
    justify-content: center;
  }

  .topbar__link { gap: 7px; }
  .topbar__link--mail span { display: none; }   /* resta solo l'icona */
  .topbar__link--mail { padding: 0 6px; }

  .topbar__link svg { width: 15px; height: 15px; }
  .topbar__social svg { width: 17px; height: 17px; }

  /* footer: colonna singola */
  .site-footer__inner { grid-template-columns: 1fr; gap: 30px; }
  .site-footer__claim { max-width: none; }
}

@media (max-width: 360px) {
  .topbar__link--phone span { font-size: 12px; }
}

/* --------------------------------------------------------------------------
   9. Accessibilita': animazioni ridotte
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}