/**
 * OLIO — componenti condivisi
 * Header, footer, bottoni, form, chat, scroll, pills
 */

/* -------------------------------------------------------------------------- */
/* Header                                                                     */
/* -------------------------------------------------------------------------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--color-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.8);
  transition:
    background 0.35s ease,
    border-color 0.35s ease,
    backdrop-filter 0.35s ease,
    -webkit-backdrop-filter 0.35s ease;
}

.site-header.is-scrolled {
  background: rgba(13, 2, 225, 0.43);
  border-bottom-color: rgba(255, 255, 255, 0.43);
  backdrop-filter: blur(10px) saturate(100%);
  -webkit-backdrop-filter: blur(10px) saturate(100%);
}

@media (prefers-reduced-transparency: reduce) {
  .site-header.is-scrolled {
    background: rgba(14, 2, 225, 0.88);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  width: 100%;
  max-width: none;
  padding: 0 clamp(1.5rem, 3.5vw, 3rem);
  gap: clamp(1.5rem, 3vw, 3rem);
}

.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 0;
}

.header-logo-img {
  display: block;
  width: auto;
  height: clamp(32px, 3vw, 40px);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1;
  gap: clamp(2rem, 4.5vw, 4.25rem);
  margin-right: clamp(0.75rem, 1.5vw, 1.5rem);
  font-family: var(--font-sans);
  font-size: clamp(1rem, 1.15vw, 1.125rem);
  font-weight: 500;
  letter-spacing: var(--tracking-header);
  line-height: 1.2;
}

.site-nav a {
  position: relative;
  padding-bottom: 3px;
  text-decoration: underline;
  text-underline-offset: 1px;
  text-decoration-thickness: 1px;
  text-decoration-color: currentColor;
  font-weight: 600;
  white-space: nowrap;
}

.site-nav a:hover {
  opacity: 1;
}

.site-nav a.active {
  opacity: 1;
  text-decoration: none;
}

.header-utils {
  display: flex;
  align-items: center;
  gap: clamp(0.15rem, 0.35vw, 0.35rem);
  flex-shrink: 0;
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: var(--color-text);
  font-weight: bold;
  opacity: 1;
  transition: background var(--ease), opacity var(--ease);
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.icon-btn svg,
.icon-btn-img {
  display: block;
  width: 22px;
  height: 22px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--ease), opacity var(--ease);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile header: account | logo | hamburger (come mockup mobile) */
@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .header-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    grid-template-rows: 1fr;
    align-items: center;
    gap: var(--space-2);
    padding: 0 1rem;
  }

  .logo {
    grid-column: 2;
    grid-row: 1;
    justify-self: center;
    align-self: center;
  }

  .header-logo-img {
    height: 32px;
  }

  .icon-btn-img {
    display: block;
    width: 28px;
    height: 28px;
  }

  .nav-toggle {
    display: flex;
    grid-column: 3;
    grid-row: 1;
    justify-self: end;
    align-self: center;
    order: unset;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 0.5rem 1.25rem 1.25rem;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
  }

  .site-header.is-scrolled .site-nav:not(.is-open) {
    background: rgba(13, 2, 225, 0.43);
    backdrop-filter: blur(10px) saturate(100%);
    -webkit-backdrop-filter: blur(10px) saturate(100%);
  }

  .site-header:has(.nav-toggle[aria-expanded="true"]) {
    background: var(--color-bg);
    border-bottom-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .site-nav.is-open {
    background: var(--color-bg);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  @media (prefers-reduced-transparency: reduce) {
    .site-header.is-scrolled .site-nav:not(.is-open) {
      background: var(--color-bg);
      backdrop-filter: none;
      -webkit-backdrop-filter: none;
    }
  }

  .site-nav a {
    padding: 0.85rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    text-decoration: none;
  }

  .site-nav.is-open {
    display: flex;
  }

  .header-utils {
    grid-column: 1;
    grid-row: 1;
    justify-self: start;
    align-self: center;
    gap: 0.35rem;
  }

  .header-utils .icon-btn {
    width: 40px;
    height: 40px;
  }

  /* Su mobile il mockup mostra solo icona account a sinistra */
  .header-utils .icon-btn[aria-label="Search"] {
    display: none;
  }
}

/* -------------------------------------------------------------------------- */
/* Footer                                                                     */
/* -------------------------------------------------------------------------- */

.site-footer {
  background: var(--color-bg);
  border-top: 1.5px solid white;
  padding: var(--space-8) var(--page-pad-x) var(--space-6);
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr auto auto auto 1.4fr;
  gap: var(--space-6) var(--space-9);
  max-width: 1800px;
  margin: 0 auto var(--space-6);
  align-items: start;
}

.footer-brand {
  text-align: center;
}

.footer-brand .footer-logo {
  display: inline-block;
  line-height: 0;
}

.footer-logo-img {
  width: clamp(160px, 15vw, 188px);
  height: auto;
  display: block;
  margin: 0 auto;
}

.footer-col {
  text-align: center;
}

.footer-col h4 {
  font-size: var(--text-nav);
  font-weight: 400;
  letter-spacing: var(--tracking-body);
  margin-bottom: var(--space-7);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.55rem;
}

.footer-col a {
  font-size: var(--text-nav);
  color: var(--color-cyan);
  opacity: 1;
  transition: color var(--ease), opacity var(--ease);
}

.footer-col a:hover {
  color: var(--color-accent);
  opacity: 1;
}

.footer-col a[href*="privacy"],
.footer-col a.is-underlined {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-address {
  font-size: var(--text-nav);
  line-height: var(--leading-snug);
  color: var(--color-cyan);
  margin: 0 0 var(--space-4);
}

.footer-col--offices {
  text-align: left;
}

.footer-col--offices ul {
  align-items: flex-start;
  gap: 0.55rem;
}

.footer-col--offices .footer-address {
  text-align: left;
}

.footer-help {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.footer-help span {
  font-size: var(--text-nav);
  line-height: var(--leading-snug);
  color: var(--color-cyan);
  opacity: 1;
  text-align: center;
}

.footer-help img {
  width: 128px;
  height: auto;
  flex-shrink: 0;
}

.footer-legal {
  max-width: 100%;
  margin: 0 auto;
  padding-top: var(--space-5);
  font-size: var(--text-md);
  font-weight: 600;
  letter-spacing: var(--tracking-body);
  line-height: var(--leading-snug);
  text-align: left;
}

@media (max-width: 1024px) {
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6) var(--space-5);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .site-footer {
    padding: 0 calc(var(--page-pad-x) + 0.5rem) var(--space-5);
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4) var(--space-5);
    margin: 0 auto;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  /* Contact (4°) e Offices: riga intera; Company + Follow us restano affiancati */
  .footer-main > .footer-col:nth-child(4),
  .footer-col--offices,
  .footer-col--help {
    grid-column: 1 / -1;
  }

  .footer-col {
    text-align: left;
  }

  .footer-col ul {
    align-items: flex-start;
    justify-content: flex-start;
    text-align: left;
    gap: 0.30rem;
  }

  .footer-col a {
    font-size: var(--text-base);
    text-align: left;
  }

  .footer-col h4 {
    margin-bottom: var(--space-4);
    margin-top: 0.55rem;
    font-size: calc(var(--text-sm) + 0.05rem);
    text-transform: uppercase;
  }

  .footer-address {
    font-size: var(--text-base);
    text-align: left;
    margin-bottom: var(--space-4);
  }

  .footer-help {
    justify-content: flex-start;
  }

  .footer-help span {
    font-size: var(--text-base);
    text-align: left;
  }

  .footer-logo-img {
    display: none;
  }

  .footer-legal {
    font-size: var(--text-base);
    text-align: left;
  }
}

/* -------------------------------------------------------------------------- */
/* Buttons                                                                    */
/* -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.85rem 1.3rem 1.85rem;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: var(--text-xl);
  letter-spacing: var(--tracking-btn);
  text-decoration: underline;
  border: 2px solid transparent;
  transition: opacity var(--ease), transform var(--ease), background var(--ease), color var(--ease);
}

.btn:hover {
  opacity: 0.92;
  transform: scale(1.02);
}

.btn:active {
  transform: scale(0.99);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-text);
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  opacity: 1;
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn--ghost:hover,
.btn--ghost.is-selected {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-text);
}

.btn--underline {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

@media (max-width: 768px) {
  .btn {
    font-size: calc(var(--text-lg) - 0.1rem);
    min-height: 43.5px;
    padding: var(--space-2) var(--space-5) var(--space-3);
  }
}

/* -------------------------------------------------------------------------- */
/* Forms (Login + Partner apply)                                              */
/* -------------------------------------------------------------------------- */

.form-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  width: 100%;
  max-width: var(--max-form);
  margin: 0 auto;
}

.form-field {
  width: 100%;
}

.form-hp {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.form-input,
.form-textarea,
.form-select {
  display: block;
  width: 100%;
  padding: 0.95rem 1.5rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-strong);
  background: transparent;
  color: var(--color-text);
  font-size: var(--text-base);
  letter-spacing: var(--tracking-body);
  transition: border-color var(--ease), background var(--ease);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.form-input:hover,
.form-textarea:hover {
  border-color: var(--color-text);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.04);
}

.form-textarea {
  border-radius: var(--radius-lg);
  min-height: 7rem;
  resize: vertical;
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  opacity: 0.85;
}

.form-error {
  margin-top: var(--space-2);
  font-size: var(--text-base);
  color: #ffb4b4;
  text-align: center;
}

.form-error--success {
  color: var(--color-accent);
}

.form-hint {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-cyan);
  text-align: center;
}

.form-actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.form-actions .btn {
  width: 100%;
}

.choice-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin-bottom: var(--space-5);
}

.choice-pill {
  min-width: 9rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-strong);
  background: transparent;
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background var(--ease), border-color var(--ease);
}

.choice-pill:hover,
.choice-pill[aria-pressed="true"],
.choice-pill.is-selected {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-text);
}

/* -------------------------------------------------------------------------- */
/* Scroll chevron                                                             */
/* -------------------------------------------------------------------------- */

.scroll-chevron {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text);
  opacity: 0.85;
  z-index: 2;
  animation: chevron-bounce 2s ease-in-out infinite;
}

.scroll-chevron:hover {
  opacity: 1;
  color: var(--color-accent);
  transition: color var(--ease) 0.2s, opacity var(--ease) 0.2s;
}

@keyframes chevron-bounce {
  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(8px);
  }
}

@media (max-width: 768px) {
  .scroll-chevron {
    display: none;
  }
}

/* -------------------------------------------------------------------------- */
/* Side pills (indicatori sezione)                                            */
/* -------------------------------------------------------------------------- */

.side-pills {
  position: absolute;
  right: -13px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  z-index: 2;
  pointer-events: none;
}

.side-pill {
  display: block;
  width: 53px;
  height: 53px;
  background: white;
  border-radius: 50% 0 0 50%;
  opacity: 0.85;
}

@media (max-width: 768px) {
  .side-pills {
    display: none;
  }
}

/* -------------------------------------------------------------------------- */
/* Chat widget                                                                */
/* -------------------------------------------------------------------------- */

/* Chat widget — nascosto finché la chat non è implementata (ripristinare display: flex) */
.chat-widget {
  display: none;
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 90;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--color-text);
  color: var(--color-bg);
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-chat);
  transition: transform var(--ease);
}

.chat-widget:hover {
  transform: scale(1.08);
}

.chat-widget svg {
  display: block;
}

@media (max-width: 768px) {
  .chat-widget {
    bottom: 1.15rem;
    right: 1.15rem;
    width: 48px;
    height: 48px;
  }
}

/* -------------------------------------------------------------------------- */
/* Split link                                                                 */
/* -------------------------------------------------------------------------- */

.split-link {
  color: var(--olio-cyan);
  font-size: var(--text-2xl);
  letter-spacing: var(--tracking-body);
  transition: color var(--ease);
}

.split-link:hover {
  color: var(--color-accent);
}

.split-link .accent,
.split-link u {
  text-decoration: underline;
  text-underline-offset: 5px;
}