/* ===== assets/css/components.css ===== */
/* =============================================================================
   components.css — Varedat.io prototype
   Reusable components. Each block maps to a future template-part (see
   docs/design-decisions.md §7). Mobile-first; desktop rules live in
   responsive.css unless they are intrinsic to the component.
   ============================================================================= */

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: transparent;
  --btn-fg: var(--color-ink);
  --btn-border: var(--color-ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-block-size: 3rem;             /* ≥ 44px touch target */
  padding: 0.75rem 1.375rem;
  font-size: var(--text-button);
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 1.5px solid var(--btn-border);
  border-radius: var(--radius-pill);
  touch-action: manipulation;
  transition: background-color var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast), transform var(--transition-fast);
}

.btn .icon {
  inline-size: 1.1em;
  block-size: 1.1em;
  transition: transform var(--transition-base);
}

.btn:hover .icon-dir,
.btn:focus-visible .icon-dir {
  transform: scaleX(-1) translateX(-0.2em); /* RTL: "forward" is toward the inline-end */
}

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

.btn--primary {
  --btn-bg: var(--color-accent);
  --btn-fg: var(--color-on-primary);
  --btn-border: var(--color-accent);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  --btn-bg: #7f4017;
  --btn-border: #7f4017;
}

.btn--secondary {
  --btn-bg: transparent;
  --btn-fg: var(--color-ink);
  --btn-border: var(--color-line-strong);
}

.btn--secondary:hover,
.btn--secondary:focus-visible {
  --btn-border: var(--color-ink);
  --btn-bg: var(--color-surface-2);
}

.btn--ghost {
  --btn-border: transparent;
  padding-inline: 0.75rem;
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  --btn-bg: rgba(15, 20, 25, 0.06);
}

.btn--block {
  inline-size: 100%;
}

/* ---------- Site header ---------- */
.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-header);
  block-size: var(--header-height);
  display: flex;
  align-items: center;
  background: transparent;
  border-block-end: 1px solid transparent;
  transition: background-color var(--transition-base), border-color var(--transition-base),
              box-shadow var(--transition-base);
}

.site-header.is-scrolled {
  background: rgba(243, 244, 242, 0.86);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  backdrop-filter: saturate(160%) blur(14px);
  border-block-end-color: var(--color-line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

/* Brand / logo slot. The real SVG logo replaces the text; keep the anchor. */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-ink);
  font-weight: 800;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
  line-height: 1;
}

.brand__mark {
  inline-size: 2rem;
  block-size: 2rem;
  color: var(--color-accent);
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  margin-inline-start: var(--space-2);
}

/* Navigation — off-canvas on mobile, inline from lg (responsive.css) */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  border-radius: var(--radius-md);
  color: var(--color-ink);
  position: relative;
  z-index: calc(var(--z-menu) + 1);
}

.nav-toggle:hover {
  background: rgba(15, 20, 25, 0.06);
}

.nav-toggle__bars {
  position: relative;
  inline-size: 1.25rem;
  block-size: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: background-color var(--transition-fast);
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  block-size: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform var(--transition-base);
}

.nav-toggle__bars::before { inset-block-start: -6px; }
.nav-toggle__bars::after  { inset-block-start: 6px; }

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

.nav {
  position: fixed;
  inset: 0;
  z-index: var(--z-menu);
  display: flex;
  flex-direction: column;
  padding: calc(var(--header-height) + var(--space-5)) var(--gutter) var(--space-7);
  background: var(--color-surface);
  overflow-y: auto;
  transform: translateX(100%);                 /* slides in from the inline-start (right in RTL) */
  visibility: hidden;
  transition: transform var(--transition-slow), visibility 0s linear var(--transition-slow);
}

[dir="ltr"] .nav {
  transform: translateX(-100%);
}

.nav.is-open {
  transform: translateX(0);
  visibility: visible;
  transition: transform var(--transition-slow), visibility 0s;
}

.nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.nav__link {
  display: block;
  padding: var(--space-3) 0;
  font-size: clamp(1.75rem, 6vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--color-ink);
  border-radius: var(--radius-sm);
}

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

.nav__cta {
  margin-block-start: var(--space-6);
}

.nav__contact {
  margin-block-start: auto;
  padding-block-start: var(--space-6);
  border-block-start: 1px solid var(--color-line);
  display: grid;
  gap: var(--space-4);
  font-size: var(--text-small);
  color: var(--color-text-muted);
}

.nav__contact a {
  color: var(--color-ink);
  text-decoration: none;
}

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

/* Lock page scroll while the menu is open (class set by JS on <body>) */
body.menu-open {
  overflow: hidden;
}

.site-header__cta {
  display: none; /* shown from md */
}

/* ---------- Hero ----------
   Moved to components/hero.css (02 Hero + globe). ---------- */

/* ---------- BOM panel (signature component) ---------- */
.bom {
  position: relative;
  background: var(--color-surface-2);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

/* copper trace along the panel's top edge */
.bom::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  block-size: 3px;
  background: linear-gradient(to left, var(--color-accent) 0 38%, transparent 38% 42%, var(--color-accent) 42% 100%);
}

.bom__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-5) var(--space-4);
  border-block-end: 1px solid var(--color-line);
}

.bom__title {
  font-size: var(--text-h4);
  font-weight: 700;
  line-height: 1.3;
}

.bom__hint {
  margin-block-start: var(--space-1);
  font-size: var(--text-small);
  color: var(--color-text-muted);
}

.bom__meta {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  direction: ltr;
  text-align: end;
  white-space: nowrap;
}

.bom__rows {
  display: grid;
}

.bom__cols {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr) 5.5rem;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5) var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.bom__cols-qty {
  text-align: end;
}

.bom__row {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr) 5.5rem;
  gap: var(--space-3);
  align-items: center;
  padding: var(--space-2) var(--space-5);
  border-block-start: 1px solid var(--color-line);
}

.bom__index {
  font-family: var(--font-mono);
  font-size: var(--text-small);
  color: var(--color-text-muted);
  direction: ltr;
}

.bom__field {
  inline-size: 100%;
  min-block-size: 2.75rem;
  padding: 0.5rem 0;
  background: transparent;
  border: 0;
  border-block-end: 1.5px solid transparent;
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-variant-numeric: tabular-nums;
  color: var(--color-ink);
  transition: border-color var(--transition-fast);
}

.bom__field::placeholder {
  color: #8b939c;
}

.bom__field:hover {
  border-block-end-color: var(--color-line-strong);
}

.bom__field:focus {
  outline: none;
  border-block-end-color: var(--color-accent);
}

.bom__field:focus-visible {
  outline: none;
}

.bom__field--pn {
  direction: ltr;
  text-align: start;
}

.bom__field--qty {
  direction: ltr;
  text-align: end;
  -moz-appearance: textfield;
  appearance: textfield;
}

.bom__field--qty::-webkit-outer-spin-button,
.bom__field--qty::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.bom__add {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: var(--space-2) var(--space-5) 0;
  padding: var(--space-2) 0;
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--color-accent);
  border-radius: var(--radius-sm);
}

.bom__add:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.bom__foot {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5) var(--space-5);
  border-block-start: 1px solid var(--color-line);
  background: var(--color-surface);
}

.bom__note {
  font-size: var(--text-small);
  color: var(--color-text-muted);
  text-wrap: pretty;
}

/* ---------- Roadmap stub (prototype only — removed once sections are built) ---------- */
.roadmap {
  border-block-start: 1px solid var(--color-line);
}

.roadmap__inner {
  --stack-space: var(--space-6);
}

.roadmap__intro {
  --stack-space: var(--space-3);
}

.roadmap__list {
  display: grid;
  gap: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-2);
}

.roadmap__item {
  display: grid;
  grid-template-columns: 3rem 1fr auto;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border-block-start: 1px solid var(--color-line);
}

.roadmap__item:first-child {
  border-block-start: 0;
}

.roadmap__item--done {
  background: var(--color-accent-tint);
}

.roadmap__num {
  font-family: var(--font-mono);
  font-size: var(--text-small);
  color: var(--color-text-muted);
  direction: ltr;
}

.roadmap__status {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  direction: ltr;
}

.roadmap__item--done .roadmap__status {
  color: var(--color-accent);
}