/* ==========================================================================
   WIASC — components.css
   Buttons, cards, spec lists, the project register, the document wall,
   the lightbox, the contact form, and the scroll reveal.
   Selectors are kept to a single class so nothing here can out-specify the
   band spacing in style.css.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Buttons and links
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: var(--fs-meta);
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease),
              transform var(--t-fast) var(--ease);
}

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

.btn-primary {
  background: var(--primary-color);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-deep);
  color: #fff;
}

.btn-ghost {
  border-color: var(--border-strong);
  background: var(--paper-color);
  color: var(--primary-color);
}

.btn-ghost:hover {
  border-color: var(--primary-color);
  background: var(--primary-wash);
  color: var(--primary-deep);
}

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

.btn-on-dark:hover {
  border-color: var(--accent-lift);
  background: rgba(237, 240, 248, 0.08);
  color: #fff;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: var(--fs-meta);
  text-decoration: none;
}

.link-arrow svg { transition: transform var(--t-fast) var(--ease); }

.link-arrow:hover svg { transform: translateX(3px); }

/* --------------------------------------------------------------------------
   2. Cards
   -------------------------------------------------------------------------- */

.card {
  display: flex;
  flex-direction: column;
  padding: clamp(1.25rem, 1rem + 1vw, 1.875rem);
  background: var(--paper-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: border-color var(--t-fast) var(--ease),
              box-shadow var(--t-fast) var(--ease),
              transform var(--t-fast) var(--ease);
}

a.card { text-decoration: none; color: inherit; }

a.card:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-block-end: 14px;
}

.card h3 { font-size: var(--fs-h4); }

.card-index {
  font-family: var(--font-mono);
  font-size: var(--fs-fine);
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

/* Section nav cards on the home page — names only, straight from the menu */

.section-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  list-style: none;
}

.nav-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 22px;
  background: var(--paper-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 1.3125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-color);
  text-decoration: none;
  transition: border-color var(--t-fast) var(--ease),
              box-shadow var(--t-fast) var(--ease),
              transform var(--t-fast) var(--ease);
}

.nav-card svg { flex: none; color: var(--primary-color); transition: transform var(--t-fast) var(--ease); }

.nav-card:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
  color: var(--text-color);
}

.nav-card:hover svg { transform: translateX(3px); }

/* --------------------------------------------------------------------------
   3. Intro block — copy beside the company photograph
   -------------------------------------------------------------------------- */

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: clamp(2rem, 1rem + 4vw, 4rem);
  align-items: start;
}

.intro-figure {
  margin: 0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper-color);
  box-shadow: var(--shadow-card);
}

.intro-figure img { inline-size: 100%; }

/* --------------------------------------------------------------------------
   4. Spec list — the Products and Services content
   A two-column relationship (maker : product) set as two columns.
   -------------------------------------------------------------------------- */

.spec-group + .spec-group { margin-block-start: 28px; }

.spec-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-block-end: 4px;
  font-size: 1.0625rem;
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary-color);
}

.spec-list {
  list-style: none;
  border-block-start: 1px solid var(--border-strong);
}

.spec-list li {
  display: grid;
  grid-template-columns: minmax(200px, 0.85fr) minmax(0, 1.6fr);
  gap: 8px 28px;
  padding-block: 15px;
  border-block-end: 1px solid var(--border-color);
}

.spec-name {
  font-family: var(--font-mono);
  font-size: var(--fs-meta);
  font-weight: 500;
  color: var(--text-color);
}

.spec-origin {
  color: var(--text-muted);
  font-weight: 400;
}

.spec-value { color: var(--text-muted); }

.spec-value em { color: var(--accent-deep); font-style: normal; font-weight: 500; }

/* Plain capability list — the Services page statements */

.capability-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
  list-style: none;
}

.capability-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  background: var(--paper-color);
  border: 1px solid var(--border-color);
  border-inline-start: 2px solid var(--primary-color);
  border-radius: var(--radius);
  font-size: var(--fs-meta);
  line-height: 1.5;
}

.capability-list li svg { flex: none; margin-block-start: 2px; color: var(--accent-deep); }

.sub-list {
  display: block;
  margin-block-start: 9px;
  padding-block-start: 9px;
  border-block-start: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: var(--fs-small);
  line-height: 1.5;
}

/* The valve-size range — the one figure the source actually states */

.range-plate {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  padding: 18px 22px;
  margin-block-end: 26px;
  background: var(--primary-wash);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}

.range-plate dt {
  font-family: var(--font-mono);
  font-size: var(--fs-fine);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary-color);
}

.range-plate dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-color);
}

/* --------------------------------------------------------------------------
   5. The register — projects table
   The wrapper scrolls horizontally on narrow screens; the header row is not
   sticky, because a sticky row inside a horizontal scroll container has
   nothing useful to stick to.
   -------------------------------------------------------------------------- */

.table-wrap {
  overflow-x: auto;
  background: var(--paper-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.register {
  inline-size: 100%;
  min-inline-size: 620px;
  border-collapse: collapse;
  font-size: var(--fs-meta);
}

.register caption {
  padding: 16px 20px;
  text-align: start;
  font-family: var(--font-mono);
  font-size: var(--fs-fine);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-block-end: 1px solid var(--border-color);
}

.register th,
.register td {
  padding: 15px 20px;
  text-align: start;
  vertical-align: top;
  border-block-end: 1px solid var(--border-color);
}

.register thead th {
  background: var(--light-color);
  font-family: var(--font-mono);
  font-size: var(--fs-fine);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary-color);
  border-block-end: 1px solid var(--border-strong);
}

.register tbody th {
  inline-size: 38%;
  font-weight: 600;
  color: var(--text-color);
}

.register tbody tr:last-child th,
.register tbody tr:last-child td { border-block-end: 0; }

.register tbody tr:hover th,
.register tbody tr:hover td { background: var(--light-color); }

.register td { color: var(--text-muted); }

.register .ref {
  display: block;
  margin-block-start: 3px;
  font-family: var(--font-mono);
  font-size: var(--fs-fine);
  color: var(--text-muted);
  font-weight: 400;
}

/* --------------------------------------------------------------------------
   6. The document wall — certificates and gallery
   -------------------------------------------------------------------------- */

.wall {
  display: grid;
  gap: clamp(14px, 1.4vw, 22px);
  list-style: none;
}

.wall-docs { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.wall-photos { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

.plate {
  display: flex;
  flex-direction: column;
  inline-size: 100%;
  padding: 0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--paper-color);
  text-align: start;
  cursor: pointer;
  overflow: hidden;
  transition: border-color var(--t-fast) var(--ease),
              box-shadow var(--t-fast) var(--ease),
              transform var(--t-fast) var(--ease);
}

.plate:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
}

.plate-img {
  position: relative;
  display: block;
  background: var(--light-color);
  overflow: hidden;
}

.plate-doc .plate-img { aspect-ratio: 1000 / 1414; }
.plate-photo .plate-img { aspect-ratio: 3 / 2; }

.plate-img img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  transition: transform 300ms var(--ease);
}

.plate-doc .plate-img img { object-fit: contain; }

.plate-photo:hover .plate-img img { transform: scale(1.03); }

.plate-caption {
  padding: 13px 15px;
  border-block-start: 1px solid var(--border-color);
  font-size: var(--fs-small);
  line-height: 1.45;
  color: var(--text-color);
}

.plate-caption .issuer {
  display: block;
  margin-block-end: 3px;
  font-family: var(--font-mono);
  font-size: var(--fs-fine);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary-color);
}

.plate-zoom {
  position: absolute;
  inset-block-end: 8px;
  inset-inline-end: 8px;
  display: grid;
  place-items: center;
  inline-size: 30px;
  block-size: 30px;
  border-radius: var(--radius-sm);
  background: rgba(13, 21, 51, 0.72);
  color: #fff;
  opacity: 0;
  transition: opacity var(--t-fast) var(--ease);
}

.plate:hover .plate-zoom,
.plate:focus-visible .plate-zoom { opacity: 1; }

/* --------------------------------------------------------------------------
   7. Lightbox
   -------------------------------------------------------------------------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 14px;
  background: rgba(6, 10, 26, 0.94);
  border: 0;
}

.lightbox[hidden] { display: none; }

.lightbox-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--text-on-dark);
}

.lightbox-count {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.08em;
  color: var(--text-on-dark-mu);
}

.lightbox-close,
.lightbox-nav {
  display: grid;
  place-items: center;
  inline-size: 42px;
  block-size: 42px;
  border: 1px solid var(--border-on-dark);
  border-radius: var(--radius);
  background: rgba(237, 240, 248, 0.06);
  color: var(--text-on-dark);
  cursor: pointer;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.lightbox-close:hover,
.lightbox-nav:hover {
  background: rgba(237, 240, 248, 0.16);
  border-color: var(--accent-lift);
}

.lightbox-stage {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  min-block-size: 0;
}

.lightbox-stage img {
  justify-self: center;
  max-inline-size: 100%;
  max-block-size: 100%;
  object-fit: contain;
  border-radius: var(--radius-sm);
  background: #fff;
}

.lightbox-caption {
  padding-block: 12px 4px;
  text-align: center;
  font-size: var(--fs-meta);
  color: var(--text-on-dark);
  min-block-size: 1.5em;
}

/* --------------------------------------------------------------------------
   8. Contact
   -------------------------------------------------------------------------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 1rem + 4vw, 3.5rem);
  align-items: start;
}

.detail-list { margin: 0; }

.detail-list > div {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 16px;
  padding-block: 15px;
  border-block-end: 1px solid var(--border-color);
}

.detail-list > div:first-child { border-block-start: 1px solid var(--border-strong); }

.detail-list dt {
  font-family: var(--font-mono);
  font-size: var(--fs-fine);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-block-start: 3px;
}

.detail-list dd {
  margin: 0;
  font-size: var(--fs-body);
  color: var(--text-color);
}

.detail-list a { text-decoration: none; }
.detail-list a:hover { text-decoration: underline; }

.form-card {
  padding: clamp(1.25rem, 1rem + 1.4vw, 2rem);
  background: var(--paper-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.field { margin-block-end: 18px; }

.field label {
  display: block;
  margin-block-end: 7px;
  font-family: var(--font-mono);
  font-size: var(--fs-fine);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.field .req { color: var(--accent-deep); }

.field input,
.field textarea {
  inline-size: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--paper-color);
  font-family: var(--font-body);
  font-size: var(--fs-meta);
  color: var(--text-color);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.field textarea { min-block-size: 148px; resize: vertical; }

.field input:focus,
.field textarea:focus {
  outline: 0;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(33, 63, 154, 0.16);
}

.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] { border-color: #B4232F; }

.field-error {
  display: block;
  margin-block-start: 6px;
  font-size: var(--fs-small);
  color: #B4232F;
}

.field-error:empty { display: none; }

.field-hint {
  margin-block-start: 6px;
  font-size: var(--fs-small);
  color: var(--text-muted);
}

.notice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 17px;
  margin-block-end: 22px;
  background: var(--light-color);
  border: 1px solid var(--border-color);
  border-inline-start: 2px solid var(--primary-color);
  border-radius: var(--radius);
  font-size: var(--fs-meta);
  line-height: 1.5;
  color: var(--text-muted);
}

.notice svg { flex: none; margin-block-start: 3px; color: var(--primary-color); }

.notice strong { color: var(--text-color); }

.form-status {
  margin-block-start: 16px;
  font-size: var(--fs-meta);
}

.form-status:empty { display: none; }

/* --------------------------------------------------------------------------
   9. Scroll reveal
   -------------------------------------------------------------------------- */

/* The hidden state is applied only once JS has claimed the page (main.js sets
   the .js class). Without JS the content is simply there — nothing on this
   site depends on a script to become visible. */

.js .reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   10. Reduced motion — everything above stops moving
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal { opacity: 1; transform: none; }

  .btn:hover,
  .card:hover,
  .plate:hover,
  .nav-card:hover { transform: none; }

  .plate-photo:hover .plate-img img { transform: none; }
}