/* ============================================================
   Marta — Components: button, card, chip, accordion, form, toast
   ============================================================ */

/* — Buttons — */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--type-body);
  font-size: var(--fs-300);
  font-weight: var(--weight-semibold);
  line-height: 1;
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  isolation: isolate;
  -webkit-tap-highlight-color: transparent;
}

.btn:active {
  transform: scale(0.97);
}

/* display:inline-flex vince sul [hidden] dello user agent: senza questa
   regola i pulsanti nascosti del configuratore restano a schermo. */
.btn[hidden] {
  display: none;
}

.btn--primary {
  background: var(--marta-red-cta);
  color: var(--white);
  box-shadow: var(--shadow-cta);
}

.btn--primary:hover {
  background: var(--marta-red-deep);
  color: var(--white);
  box-shadow: 0.3125rem 0.3125rem 0 rgba(185, 46, 27, 0.32);
  transform: translate(-0.0625rem, -0.0625rem);
}

.btn--primary:active {
  transform: translate(0.0625rem, 0.0625rem);
  box-shadow: 0.0625rem 0.0625rem 0 rgba(185, 46, 27, 0.32);
}

.btn--secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}

.btn--secondary:hover {
  background: var(--ink);
  color: var(--white);
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
}

.btn--ghost:hover {
  background: var(--paper-2);
  color: var(--ink);
}

.btn--lg {
  font-size: var(--fs-400);
  padding: 1.125rem 2rem;
}

.btn--sm {
  font-size: var(--fs-200);
  padding: 0.625rem 1.125rem;
}

/* On dark sections */
.section-dark .btn--secondary {
  color: var(--white);
  border-color: var(--white);
}

.section-dark .btn--secondary:hover {
  background: var(--white);
  color: var(--ink);
}

.section-dark .btn--ghost {
  color: var(--white);
}

.section-dark .btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* Link within button */
.btn-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--marta-red);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: gap var(--dur-fast) var(--ease-out);
}

.btn-link:hover {
  color: var(--marta-red-deep);
  gap: var(--space-3);
}

/* — Card — */
.card {
  background: var(--white);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: box-shadow var(--dur-normal) var(--ease-out),
              border-color var(--dur-normal) var(--ease-out);
  position: relative;
}

.card:hover {
  box-shadow: var(--shadow-2);
  border-color: var(--ink);
}

.card--feature {
  background: var(--white);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
  transition: box-shadow var(--dur-normal) var(--ease-out),
              border-color var(--dur-normal) var(--ease-out);
}

/* Tacca d'angolo: il segno di taglio del cartamodello */
.card--feature::after {
  content: '';
  position: absolute;
  right: -0.0625rem;
  bottom: -0.0625rem;
  width: var(--space-4);
  height: var(--space-4);
  border-right: 1px solid var(--marta-red);
  border-bottom: 1px solid var(--marta-red);
  opacity: 0;
  transition: opacity var(--dur-normal) var(--ease-out);
}

.card--feature:hover {
  box-shadow: var(--shadow-2);
  border-color: var(--ink);
}

.card--feature:hover::after {
  opacity: 1;
}

.card--feature .card-icon {
  width: clamp(2.375rem, 3.2vw, 3rem);
  height: clamp(2.375rem, 3.2vw, 3rem);
  border-radius: 0;
  border: 1px dashed var(--dash);
  background: transparent;
  color: var(--marta-red);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
}

.card--feature .card-icon svg {
  width: clamp(1.275rem, 1.6667vw, 1.875rem);
  height: clamp(1.275rem, 1.6667vw, 1.875rem);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card--feature h3 {
  font-size: var(--fs-500);
  font-weight: var(--weight-semibold);
  font-stretch: var(--stretch-display);
}

.card--feature p {
  color: var(--mute);
  font-size: var(--fs-300);
  line-height: var(--lh-normal);
}

.card--feature--wide {
  grid-column: 1 / -1;
  background: var(--paper-2);
  border-color: var(--hairline);
  text-align: left;
  flex-direction: row;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-7);
  border-left: 4px solid var(--marta-red);
}

.card--feature--wide .card-icon {
  flex-shrink: 0;
  width: clamp(2.75rem, 3.8vw, 3.5rem);
  height: clamp(2.75rem, 3.8vw, 3.5rem);
  display: grid;
  place-items: center;
  background: transparent;
  color: var(--marta-red);
  border: 1px dashed var(--marta-red);
  border-radius: 0;
  margin-bottom: 0;
}

.card--feature--wide .card-icon svg {
  width: clamp(1.4875rem, 1.9444vw, 2.1875rem);
  height: clamp(1.4875rem, 1.9444vw, 2.1875rem);
}


@media (max-width: 700px) {
  .card--feature--wide {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-5);
  }
}

.card--feature--wide h3 {
  margin-bottom: var(--space-1);
}

.card--feature--wide p {
  margin: 0;
}

/* — Chip / pill — */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.5rem 1rem;
  background: var(--marta-red);
  color: var(--white);
  border-radius: var(--radius-sm);
  font-size: var(--fs-200);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-snug);
  font-family: var(--type-mono);
  border: 0;
  white-space: nowrap;
}

.chip--neutral {
  background: var(--paper-2);
  color: var(--ink);
  border: 1px solid var(--hairline);
}

.chip--data {
  background: var(--ink);
  color: var(--white);
  font-family: var(--type-mono);
}

.chip--icon {
  position: relative;
  padding-left: 2rem;
}

.chip--icon::before {
  content: '';
  position: absolute;
  left: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(0.3187rem, 0.4167vw, 0.4688rem);
  height: clamp(0.3187rem, 0.4167vw, 0.4688rem);
  border-radius: 50%;
  background: currentColor;
}

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* — Accordion — */
.accordion {
  border-top: 1px solid var(--hairline);
}

.accordion__item {
  border-bottom: 1px solid var(--hairline);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) 0;
  text-align: left;
  font-size: var(--fs-500);
  font-weight: var(--weight-medium);
  color: var(--ink);
  background: none;
  border: 0;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out);
}

.accordion__trigger:hover {
  color: var(--marta-red);
}

.accordion__trigger::after {
  content: '';
  width: clamp(0.85rem, 1.1111vw, 1.25rem);
  height: clamp(0.85rem, 1.1111vw, 1.25rem);
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") center/contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") center/contain no-repeat;
  transition: transform var(--dur-fast) var(--ease-out);
  flex-shrink: 0;
}

.accordion__trigger[aria-expanded="true"]::after {
  transform: rotate(180deg);
}

.accordion__content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-normal) var(--ease-out);
}

.accordion__content[data-open="true"] {
  grid-template-rows: 1fr;
}

.accordion__content > div {
  overflow: hidden;
}

.accordion__body {
  padding-bottom: var(--space-5);
  color: var(--mute);
  font-size: var(--fs-300);
  line-height: var(--lh-prose);
}

/* — Form — */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

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

.form-field label {
  font-family: var(--type-mono);
  font-size: var(--fs-100);
  font-weight: var(--weight-regular);
  text-transform: uppercase;
  color: var(--mute);
  letter-spacing: var(--tracking-wide);
}

.form-field label .required {
  color: var(--marta-red-ink);
  margin-left: 0.125rem;
}

.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--white);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  font-size: var(--fs-300);
  color: var(--ink);
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
  font-family: var(--type-body);
  -webkit-appearance: none;
  appearance: none;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--mute-2);
}

.form-field input:hover,
.form-field textarea:hover,
.form-field select:hover {
  border-color: var(--paper-3);
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--marta-red);
  box-shadow: var(--shadow-glow);
}

.form-field input[aria-invalid="true"],
.form-field textarea[aria-invalid="true"] {
  border-color: var(--marta-red);
  box-shadow: var(--shadow-glow);
}

.form-field textarea {
  min-height: clamp(7.5rem, 8.3333vw, 9.375rem);
  resize: vertical;
  line-height: var(--lh-normal);
}

.form-field .help {
  font-size: var(--fs-100);
  color: var(--mute);
}

.form-field .error {
  font-size: var(--fs-100);
  color: var(--marta-red-deep);
  font-weight: var(--weight-medium);
}

/* Honeypot — invisibile ad utenti, ignora bot che compilano tutto */
.form-honeypot {
  position: absolute;
  left: -100vw;
  width: 0.0625rem;
  height: 0.0625rem;
  opacity: 0;
  pointer-events: none;
}

/* Checkbox */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
  font-size: var(--fs-200);
  color: var(--mute);
  line-height: var(--lh-normal);
}

.form-check input[type="checkbox"] {
  width: clamp(1.25rem, 1.3889vw, 1.5625rem);
  height: clamp(1.25rem, 1.3889vw, 1.5625rem);
  margin-top: 0.125rem;
  flex-shrink: 0;
  border: 1px solid var(--dash);
  border-radius: 0;
  background: var(--white);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
  -webkit-appearance: none;
  appearance: none;
  position: relative;
}

.form-check input[type="checkbox"]:checked {
  background: var(--marta-red);
  border-color: var(--marta-red);
}

.form-check input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  top: clamp(0.1875rem, 0.2083vw, 0.2344rem);
  left: clamp(0.375rem, 0.4167vw, 0.4688rem);
  width: clamp(0.3125rem, 0.3472vw, 0.3906rem);
  height: clamp(0.5625rem, 0.625vw, 0.7031rem);
  border: solid var(--white);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.form-check a {
  color: var(--marta-red);
  text-decoration: underline;
  text-underline-offset: 0.125rem;
}

/* Submit button — busy state */
.btn-submit {
  position: relative;
  min-width: clamp(11.25rem, 12.5vw, 14.0625rem);
}

.btn-submit[data-loading="true"] {
  pointer-events: none;
  opacity: 0.85;
}

.btn-submit[data-loading="true"] .btn-submit__label {
  opacity: 0;
}

.btn-submit[data-loading="true"]::after {
  content: '';
  position: absolute;
  width: clamp(0.9562rem, 1.25vw, 1.4062rem);
  height: clamp(0.9562rem, 1.25vw, 1.4062rem);
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--white);
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* — Toast — */
.toast {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  /* Chiuso: fuori schermo di tutta l'altezza + la distanza dal fondo + l'ombra.
     Con il solo 140% ne restavano visibili alcuni pixel su ogni pagina. */
  transform: translateX(-50%) translateY(calc(100% + var(--space-6) + 2rem));
  background: var(--ink);
  color: var(--white);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-modal);
  z-index: var(--z-toast);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-300);
  font-weight: var(--weight-medium);
  max-width: 90vw;
  transition: transform var(--dur-normal) var(--ease-out);
}

.toast[data-open="true"] {
  transform: translateX(-50%) translateY(0);
}

.toast--success {
  background: var(--ink);
}

.toast--success .toast__icon {
  color: var(--marta-red);
}

.toast--error {
  background: var(--marta-red-deep);
}

.toast__icon {
  flex-shrink: 0;
  width: clamp(1.275rem, 1.6667vw, 1.875rem);
  height: clamp(1.275rem, 1.6667vw, 1.875rem);
}

.toast__icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.toast__close {
  margin-left: auto;
  color: rgba(255, 255, 255, 0.6);
  background: none;
  border: 0;
  padding: var(--space-1);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color var(--dur-fast) var(--ease-out);
}

.toast__close:hover {
  color: var(--white);
}

/* — Icon Symbol — */
.icon {
  width: 1em;
  height: 1em;
  display: inline-block;
  vertical-align: -0.125em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

/* — Interruttore di lingua (EN / BG) — */
.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  min-height: 2.5rem;
  padding: 0 var(--space-2);
  border: 1px dashed var(--ink);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-family: var(--type-mono);
  font-size: var(--fs-200);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

.lang-switch:hover,
.lang-switch:focus-visible {
  color: var(--marta-red-ink);
  border-color: var(--marta-red-ink);
}