/* ============================================================
   CORSI-LIVE — Components
   Navbar, Footer, Buttons, Cards, Forms, Badges, Carousel
   ============================================================ */

/* ── NAVBAR ───────────────────────────────────────────────── */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-navbar);
  height: var(--navbar-height);
  background: var(--color-bg-white);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.navbar__logo img {
  height: 44px;
  width: auto;
}

.navbar__brand {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

/* Desktop nav (hidden on mobile) */
.navbar__nav {
  display: none;
}

.navbar__list {
  display: flex;
  gap: var(--space-5);
}

.navbar__link {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
  position: relative;
  padding: var(--space-1) 0;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.navbar__link:hover,
.navbar__link[aria-current="page"] {
  color: var(--color-primary);
}

.navbar__link:hover::after,
.navbar__link[aria-current="page"]::after {
  width: 100%;
}

/* Desktop actions (hidden on mobile) */
.navbar__actions {
  display: none;
  align-items: center;
  gap: var(--space-3);
}

/* Hamburger */
.navbar__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 28px;
  height: 22px;
  padding: 0;
  cursor: pointer;
  background: transparent;
  border: none;
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.navbar__hamburger[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}

.navbar__hamburger[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.navbar__hamburger[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

/* Mobile overlay */
.navbar__overlay {
  display: none;
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg-white);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  z-index: calc(var(--z-navbar) - 1);
  padding: var(--space-4);
}

.navbar__overlay.is-open {
  display: flex;
}

.navbar__overlay .navbar__list {
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.navbar__overlay .navbar__link {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
}

.navbar__overlay .navbar__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

/* Language switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.lang-switcher__sep {
  color: var(--color-border);
}

.lang-switcher__btn {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  padding: 2px 4px;
  border-radius: var(--radius-sm);
}

.lang-switcher__btn:hover,
.lang-switcher__btn.active {
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

/* Desktop breakpoint */
@media (min-width: 1024px) {
  .navbar__nav,
  .navbar__actions {
    display: flex;
  }

  .navbar__hamburger {
    display: none;
  }
}

/* ── BUTTONS ──────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-base),
              color var(--transition-base),
              border-color var(--transition-base),
              transform var(--transition-fast),
              box-shadow var(--transition-base);
  white-space: nowrap;
  min-height: 44px; /* WCAG touch target */
  min-width: 44px;
  text-decoration: none;
}

.btn:active {
  transform: translateY(1px);
}

/* Primary */
.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-text-on-dark);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: var(--color-text-on-dark);
  box-shadow: 0 4px 16px rgba(58, 0, 214, 0.35);
}

/* Secondary (outline) */
.btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--secondary:hover {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

/* Accent (giallo) */
.btn--accent {
  background-color: var(--color-accent);
  color: var(--color-text-on-accent);
  border-color: var(--color-accent);
}

.btn--accent:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-text-on-accent);
  box-shadow: 0 4px 16px rgba(255, 230, 0, 0.5);
}

/* Ghost (on dark bg) */
.btn--ghost {
  background-color: transparent;
  color: var(--color-text-on-dark);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--ghost:hover {
  background-color: rgba(255, 255, 255, 0.15);
  border-color: var(--color-text-on-dark);
}

/* Sizes */
.btn--sm {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-sm);
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: var(--font-size-lg);
  border-radius: var(--radius-lg);
}

/* ── BADGE ────────────────────────────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge--primary {
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

.badge--accent {
  background: var(--color-accent);
  color: var(--color-text-on-accent);
}

.badge--success {
  background: var(--color-success-light);
  color: #065F46;
}

.badge--light {
  background: var(--color-bg-light);
  color: var(--color-text-secondary);
}

/* ── CARD ─────────────────────────────────────────────────── */

.card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__media {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--color-bg-light);
}

.card__body {
  padding: var(--space-3);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.card__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: 1.3;
}

.card__desc {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
  flex: 1;
}

.card__footer {
  padding: var(--space-2) var(--space-3);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.card__meta svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ── FORM ─────────────────────────────────────────────────── */

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.form-label .required {
  color: var(--color-error);
  margin-left: 2px;
  aria-hidden: true;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: var(--color-bg-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 44px;
  appearance: none;
  -webkit-appearance: none;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(58, 0, 214, 0.15);
}

.form-control.is-invalid {
  border-color: var(--color-error);
}

.form-control.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-control.is-valid {
  border-color: var(--color-success);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-error {
  font-size: var(--font-size-sm);
  color: var(--color-error);
  display: none;
}

.form-error.visible {
  display: block;
}

.form-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* Checkbox / Radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
}

.form-check__input {
  width: 20px;
  height: 20px;
  min-width: 20px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form-check__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.form-check__label a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ── ACCORDION ────────────────────────────────────────────── */

.accordion-item {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.accordion-item + .accordion-item {
  margin-top: var(--space-1);
}

.accordion-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg-white);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  text-align: left;
  cursor: pointer;
  border: none;
  transition: background var(--transition-fast);
  min-height: 44px;
}

.accordion-btn:hover,
.accordion-btn[aria-expanded="true"] {
  background: var(--color-bg-light);
  color: var(--color-primary);
}

.accordion-btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.accordion-btn[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.accordion-panel {
  display: none;
  padding: 0 var(--space-3) var(--space-3);
  background: var(--color-bg-white);
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.accordion-panel.is-open {
  display: block;
}

/* ── CAROUSEL (Testimonianze) ─────────────────────────────── */

.carousel {
  position: relative;
  overflow: hidden;
}

.carousel__track {
  display: flex;
  transition: transform var(--transition-slow);
}

.carousel__slide {
  min-width: 100%;
  padding: 0 var(--space-3);
}

.testimonial-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-4);
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.testimonial-card__text {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  font-style: italic;
  line-height: 1.7;
  margin-bottom: var(--space-3);
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.testimonial-card__avatar {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  object-fit: cover;
  background: var(--color-primary-soft);
}

.testimonial-card__name {
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
}

.testimonial-card__role {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.carousel__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.carousel__btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-primary);
  background: transparent;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.carousel__btn:hover {
  background: var(--color-primary);
  color: var(--color-text-on-dark);
}

.carousel__dots {
  display: flex;
  gap: 0.5rem;
}

.carousel__dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
  min-width: 10px;
  min-height: 10px;
  padding: 0;
}

.carousel__dot.active {
  background: var(--color-primary);
  transform: scale(1.3);
}

/* ── STATS BAR ────────────────────────────────────────────── */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  text-align: center;
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-item__number {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.section--dark .stat-item__number {
  color: var(--color-accent);
}

.stat-item__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.section--dark .stat-item__label {
  color: rgba(255, 255, 255, 0.7);
}

/* ── STEP (Come funziona) ─────────────────────────────────── */

.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  counter-reset: step-counter;
}

@media (min-width: 768px) {
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .steps-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.step-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
  counter-increment: step-counter;
  position: relative;
}

.step-card__icon {
  width: 56px;
  height: 56px;
  background: var(--color-primary-soft);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  flex-shrink: 0;
}

.step-card__icon::before {
  content: counter(step-counter, decimal-leading-zero);
}

.step-card__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.step-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ── FOOTER ───────────────────────────────────────────────── */

.footer {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  padding: var(--space-7) 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
  }
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer__logo {
  height: 44px;
  width: auto;
}

.footer__brand-name {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
}

.footer__brand-desc {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
  max-width: 320px;
}

.footer__social {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-1);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

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

.footer__social-link svg {
  width: 18px;
  height: 18px;
}

.footer__heading {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-2);
}

.footer__nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__nav a {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

.footer__nav a:hover {
  color: var(--color-accent);
}

.footer__contact p {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.footer__contact a {
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

.footer__contact a:hover {
  color: var(--color-accent);
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) 0;
  text-align: center;
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__bottom p {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.4);
}

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

.footer__legal a {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.4);
  transition: color var(--transition-fast);
}

.footer__legal a:hover {
  color: var(--color-accent);
}

/* ── HERO (sezione condivisa) ─────────────────────────────── */

.hero {
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-primary-dark) 50%, var(--color-primary) 100%);
  color: var(--color-text-on-dark);
  padding: var(--space-8) 0 var(--space-7);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 230, 0, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: rgba(255, 230, 0, 0.15);
  border: 1px solid rgba(255, 230, 0, 0.3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-on-dark);
  line-height: 1.15;
  margin-bottom: var(--space-3);
}

.hero__title span {
  color: var(--color-accent);
}

@media (min-width: 768px) {
  .hero__title {
    font-size: var(--font-size-5xl);
  }
}

@media (min-width: 1024px) {
  .hero__title {
    font-size: var(--font-size-6xl);
  }
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.hero__page {
  background: var(--color-bg-light);
  padding: var(--space-7) 0;
}

.hero__page .hero__title {
  color: var(--color-text-primary);
}

.hero__page .hero__subtitle {
  color: var(--color-text-secondary);
}

/* ── CTA BANNER ───────────────────────────────────────────── */

.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-text-on-dark);
  padding: var(--space-7) 0;
  text-align: center;
}

.cta-banner__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-2);
}

.cta-banner__subtitle {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-5);
}

/* ── ALERT / FEEDBACK MESSAGES ───────────────────────────── */

.alert {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  border: 1px solid transparent;
  display: none;
}

.alert.visible {
  display: block;
}

.alert--success {
  background: var(--color-success-light);
  color: #065F46;
  border-color: #A7F3D0;
}

.alert--error {
  background: var(--color-error-light);
  color: #991B1B;
  border-color: #FECACA;
}

/* ── PAGE HEADER (pagine interne) ─────────────────────────── */

.page-header {
  background: var(--color-bg-light);
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-2);
}

.page-header p {
  font-size: var(--font-size-lg);
  max-width: 700px;
}