/* ================================================================
   COMPONENTS.CSS
   Buttons, cards, badges, forms, accordion, trust row, data panels.
   ================================================================ */

/* --- BUTTONS --- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.8125rem var(--space-6);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--duration-base) var(--ease-base),
    border-color var(--duration-base) var(--ease-base),
    color var(--duration-base) var(--ease-base);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background-color: var(--color-ink);
  color: var(--color-ink-inverse);
  border-color: var(--color-ink);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-ink-hover);
  border-color: var(--color-ink-hover);
  color: var(--color-ink-inverse);
}

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

.btn-outline:hover,
.btn-outline:focus-visible {
  background-color: var(--color-ink);
  color: var(--color-ink-inverse);
}

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

.btn-outline-inverse:hover,
.btn-outline-inverse:focus-visible {
  background-color: var(--color-ink-inverse);
  color: var(--color-ink);
}

.btn-lg {
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-8);
}

.btn-full {
  width: 100%;
}

/* --- CARDS --- */

.card {
  background-color: var(--color-slate);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition:
    background-color var(--duration-base) var(--ease-base),
    border-color var(--duration-base) var(--ease-base);
}

.card:hover {
  background-color: var(--color-bg);
  border-color: var(--color-border-dark);
}

/* Product line top stripe — 3px coloured bar per line */

.card[data-line]::before {
  content: '';
  display: block;
  height: 3px;
  width: 100%;
}

.card[data-line="revia"]::before  { background-color: var(--color-line-revia); }
.card[data-line="vion"]::before   { background-color: var(--color-line-vion); }
.card[data-line="cella"]::before  { background-color: var(--color-line-cella); }
.card[data-line="orin"]::before   { background-color: var(--color-line-orin); }
.card[data-line="eira"]::before   { background-color: var(--color-line-eira); }
.card[data-line="vea"]::before    { background-color: var(--color-line-vea); }

.card-body {
  padding: var(--space-6);
}

.card-image {
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  aspect-ratio: 1;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Product detail card: left accent stripe */

.card-detail {
  border-left: 3px solid var(--color-ink);
}

.card-detail[data-line="revia"]  { border-left-color: var(--color-line-revia); }
.card-detail[data-line="vion"]   { border-left-color: var(--color-line-vion); }
.card-detail[data-line="cella"]  { border-left-color: var(--color-line-cella); }
.card-detail[data-line="orin"]   { border-left-color: var(--color-line-orin); }
.card-detail[data-line="eira"]   { border-left-color: var(--color-line-eira); }
.card-detail[data-line="vea"]    { border-left-color: var(--color-line-vea); }

/* --- BADGES --- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 0.25rem var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  line-height: 1;
  white-space: nowrap;
}

.badge-navy {
  background-color: var(--color-ink);
  color: var(--color-ink-inverse);
  border-color: var(--color-ink);
}

.badge-navy-outline {
  background-color: transparent;
  color: var(--color-ink);
  border-color: var(--color-ink);
}

.badge-gold {
  background-color: var(--color-gold);
  color: var(--color-ink);
  border-color: var(--color-gold);
}

.badge-verified {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  background-color: transparent;
  color: var(--color-sage);
  border-color: var(--color-sage);
  letter-spacing: 0.1em;
}

/* --- PURITY STRIP --- */

.purity-strip {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background-color: var(--color-slate);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
}

.purity-strip__figure {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-sage);
  line-height: 1;
}

.purity-strip__label {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-secondary);
}

/* --- FORMS --- */

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

.form-label {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink);
  letter-spacing: 0.02em;
}

.form-input,
.form-select,
.form-textarea {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-ink);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  transition: border-color var(--duration-fast) var(--ease-base);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-ink);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-ink-disabled);
}

.form-textarea {
  resize: vertical;
  min-height: 8rem;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  margin-top: 3px;
  accent-color: var(--color-ink);
  flex-shrink: 0;
  cursor: pointer;
}

.form-checkbox-label {
  font-size: var(--text-sm);
  color: var(--color-ink-secondary);
  line-height: 1.55;
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
}

/* --- ACCORDION --- */

.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-item:first-child {
  border-top: 1px solid var(--color-border);
}

.accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  padding-block: var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-ink);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
}

.accordion-trigger:hover {
  color: var(--color-ink);
}

.accordion-chevron {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-sage);
  flex-shrink: 0;
  transition: transform var(--duration-base) var(--ease-out);
}

.accordion-item.is-open .accordion-chevron {
  transform: rotate(180deg);
}

.accordion-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration-slow) var(--ease-out);
}

.accordion-item.is-open .accordion-body {
  grid-template-rows: 1fr;
}

.accordion-body-inner {
  overflow: hidden;
}

.accordion-content {
  padding-bottom: var(--space-6);
  font-size: var(--text-base);
  color: var(--color-ink-secondary);
  line-height: 1.7;
}

/* --- TRUST ROW --- */

.trust-row {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-secondary);
  white-space: nowrap;
}

.trust-item svg,
.trust-item img {
  width: 1rem;
  height: 1rem;
  color: var(--color-sage);
  flex-shrink: 0;
}

/* --- PAYMENT CARD --- */

.payment-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: border-color var(--duration-base) var(--ease-base);
}

.payment-card:hover {
  border-color: var(--color-border-dark);
}

.payment-card__name {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-ink);
}

.payment-card__desc {
  font-size: var(--text-sm);
  color: var(--color-ink-secondary);
  line-height: 1.5;
}

/* --- DATA PANEL (science section) --- */

.data-panel {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.data-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(245, 246, 248, 0.08);
}

.data-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.data-label {
  color: rgba(245, 246, 248, 0.4);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.data-value {
  color: var(--color-bronze-light);
  font-weight: 500;
  text-align: right;
}