/* ==================================================
   FORMS & CONTACT
   Purpose:
   Field styling, validation states, the project enquiry
   form layout, the contact detail panel and the search
   overlay's input. Validation logic lives in js/forms.js.

   The site is static and has no backend, so the enquiry
   form is a front-end structure only — js/forms.js says
   so plainly instead of faking a successful submission.
================================================== */

/* ==================================================
   FIELD PRIMITIVES
================================================== */

.form-grid {
  display: grid;
  gap: var(--s-5);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
}

.form-field {
  display: grid;
  gap: var(--s-2);
  min-width: 0;
}

.form-field--full { grid-column: 1 / -1; }

.form-label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--ink-700);
}

.form-label__optional {
  font-weight: var(--fw-regular);
  color: var(--ink-400);
}

.form-label__required {
  color: var(--danger-500);
  margin-left: 2px;
}

.form-hint {
  font-size: var(--fs-xs);
  color: var(--ink-400);
  line-height: 1.5;
}

.form-control {
  width: 100%;
  min-height: 48px;
  padding: 0.7rem 1rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background-color: var(--surface);
  color: var(--ink-800);
  font-size: var(--fs-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control::placeholder { color: var(--ink-300); }

.form-control:hover { border-color: var(--ink-300); }

.form-control:focus {
  outline: none;
  border-color: var(--brand-500);
  box-shadow: 0 0 0 3px var(--brand-wash);
}

textarea.form-control {
  min-height: 148px;
  padding-top: 0.85rem;
  line-height: 1.6;
}

select.form-control {
  appearance: none;
  padding-right: 2.75rem;
  background-image: url("../assets/icons/ui/chevron-down.svg");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 18px;
  cursor: pointer;
}

/* ==================================================
   VALIDATION STATES
   Applied by js/forms.js after a field is touched, never
   on first render.
================================================== */

.form-field.has-error .form-control {
  border-color: var(--danger-500);
  background-color: var(--danger-50);
}

.form-field.has-error .form-control:focus {
  box-shadow: 0 0 0 3px rgba(220, 62, 66, 0.16);
}

.form-error {
  display: none;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--danger-500);
}

.form-field.has-error .form-error { display: flex; }

.form-field.is-valid .form-control { border-color: var(--success-500); }

/* ==================================================
   FILE UPLOAD
   The native input is visually hidden behind a styled
   label but stays fully keyboard reachable.
================================================== */

.file-field__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.file-field__dropzone {
  display: flex;
  align-items: center;
  gap: var(--s-4);
  padding: var(--s-5);
  border: 1.5px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  background-color: var(--surface-muted);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.file-field__dropzone:hover,
.file-field__input:focus-visible + .file-field__dropzone {
  border-color: var(--brand-400);
  background-color: var(--brand-50);
}

.file-field__input:focus-visible + .file-field__dropzone {
  outline: 3px solid var(--brand-500);
  outline-offset: 3px;
}

.file-field__icon {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  background-color: var(--brand-500);
  mask: url("../assets/icons/ui/upload.svg") no-repeat center / contain;
  -webkit-mask: url("../assets/icons/ui/upload.svg") no-repeat center / contain;
}

.file-field__text {
  font-size: var(--fs-sm);
  color: var(--ink-600);
}

.file-field__text strong { color: var(--brand-700); }

.file-field__meta {
  display: block;
  font-size: var(--fs-xs);
  color: var(--ink-400);
  margin-top: 2px;
}

/* ==================================================
   CHECKBOX / CONSENT
================================================== */

.checkbox-field {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--s-3);
  align-items: start;
}

.checkbox-field__input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--brand-500);
  cursor: pointer;
  flex-shrink: 0;
}

.checkbox-field__label {
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--ink-500);
  cursor: pointer;
}

.checkbox-field.has-error .checkbox-field__label { color: var(--danger-500); }

/* ==================================================
   FORM FEEDBACK
   A single live region reports both errors and the
   submission outcome to assistive technology.
================================================== */

.form-feedback {
  display: none;
  gap: var(--s-3);
  padding: var(--s-5);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.form-feedback.is-visible { display: flex; }

.form-feedback--error {
  background-color: var(--danger-50);
  border: 1px solid rgba(220, 62, 66, 0.3);
  color: #8B1F22;
}

.form-feedback--success {
  background-color: var(--success-50);
  border: 1px solid rgba(18, 165, 148, 0.3);
  color: #0A5F55;
}

.form-feedback__icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  background-color: currentColor;
  mask-repeat: no-repeat;
  mask-position: center;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  -webkit-mask-size: contain;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-4);
  margin-top: var(--s-6);
}

.form-actions__note {
  font-size: var(--fs-xs);
  color: var(--ink-400);
  max-width: 40ch;
}

/* ==================================================
   CONTACT PAGE LAYOUT
================================================== */

.contact-layout {
  display: grid;
  gap: clamp(2rem, 1.6rem + 2.4vw, 3.5rem);
  align-items: start;
}

@media (min-width: 980px) {
  .contact-layout { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); }
}

.contact-form-card {
  padding: clamp(1.5rem, 1.2rem + 1.6vw, 2.5rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background-color: var(--surface);
  box-shadow: var(--shadow-md);
}

.contact-form-card__title {
  font-size: var(--fs-h3);
  margin-bottom: var(--s-3);
}

.contact-form-card__lead {
  font-size: var(--fs-sm);
  line-height: 1.65;
  color: var(--ink-500);
  margin-bottom: var(--s-8);
}

.contact-panel {
  display: grid;
  gap: var(--s-6);
  padding: clamp(1.5rem, 1.2rem + 1.6vw, 2.25rem);
  border-radius: var(--radius-lg);
  background: var(--gradient-night);
  color: var(--color-on-dark-muted);
}

.contact-panel__title {
  font-size: var(--fs-h4);
  color: #FFFFFF;
}

.contact-panel .contact-list__label { color: var(--ink-300); }
.contact-panel .contact-list__item { color: var(--color-on-dark-muted); }
.contact-panel .contact-list__item a { color: #FFFFFF; }
.contact-panel .contact-list__item a:hover { color: var(--brand-300); }
.contact-panel .contact-list__icon { background-color: var(--brand-300); }

.contact-panel__divider {
  height: 1px;
  background-color: rgba(255, 255, 255, 0.12);
}

/* ==================================================
   SEARCH OVERLAY
   Full-screen search surface opened from the header.
   Interaction lives in js/search.js.
================================================== */

.search-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  display: flex;
  flex-direction: column;
  background-color: rgba(6, 12, 31, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.search-overlay.is-open { opacity: 1; visibility: visible; }

.search-overlay__panel {
  width: 100%;
  max-width: 780px;
  margin: clamp(1rem, 0.5rem + 4vh, 5rem) auto 0;
  max-height: calc(100vh - clamp(2rem, 1rem + 8vh, 8rem));
  display: flex;
  flex-direction: column;
  background-color: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform: translateY(-16px);
  transition: transform var(--transition-normal);
}

.search-overlay.is-open .search-overlay__panel { transform: translateY(0); }

@media (max-width: 640px) {
  .search-overlay__panel {
    margin: 0;
    max-width: none;
    max-height: 100vh;
    height: 100%;
    border-radius: 0;
  }
}

.search-overlay__header {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-4) var(--s-5);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.search-overlay__icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  background-color: var(--ink-400);
  mask: url("../assets/icons/ui/search.svg") no-repeat center / contain;
  -webkit-mask: url("../assets/icons/ui/search.svg") no-repeat center / contain;
}

.search-overlay__input {
  flex: 1;
  min-width: 0;
  border: none;
  background: none;
  font-size: var(--fs-lead);
  color: var(--ink-900);
  padding-block: var(--s-2);
}

.search-overlay__input:focus { outline: none; }
.search-overlay__input::placeholder { color: var(--ink-300); }

.search-overlay__hint {
  display: none;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--color-border-strong);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--ink-400);
  flex-shrink: 0;
}

@media (min-width: 640px) { .search-overlay__hint { display: block; } }

.search-overlay__body {
  flex: 1;
  overflow-y: auto;
  padding: var(--s-4) var(--s-5) var(--s-6);
  overscroll-behavior: contain;
}

/* ---- Results --------------------------------------------------------- */

.search-results { display: grid; gap: var(--s-1); }

.search-result {
  display: grid;
  gap: var(--s-1);
  padding: var(--s-3) var(--s-4);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.search-result:hover,
.search-result.is-highlighted {
  background-color: var(--brand-50);
}

.search-result__top {
  display: flex;
  align-items: center;
  gap: var(--s-3);
}

.search-result__title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--ink-800);
}

.search-result__category {
  font-size: 0.6875rem;
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--brand-600);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-xs);
  background-color: var(--brand-50);
  flex-shrink: 0;
}

.search-result:hover .search-result__category,
.search-result.is-highlighted .search-result__category {
  background-color: var(--brand-100);
}

.search-result__text {
  font-size: var(--fs-xs);
  line-height: 1.55;
  color: var(--ink-400);
}

/* Matched substring highlight injected by js/search.js. */
.search-result mark {
  background-color: rgba(245, 165, 36, 0.32);
  color: inherit;
  border-radius: 2px;
  padding: 0 1px;
}

.search-section-label {
  padding: var(--s-4) var(--s-4) var(--s-2);
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--ink-400);
}

.search-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  padding: var(--s-2) var(--s-4) var(--s-4);
}

.search-suggestion {
  padding: 0.38rem 0.8rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  font-size: var(--fs-xs);
  color: var(--ink-600);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.search-suggestion:hover {
  border-color: var(--brand-300);
  color: var(--brand-700);
}

.search-empty {
  padding: var(--s-10) var(--s-4);
  text-align: center;
  color: var(--ink-400);
  font-size: var(--fs-sm);
}

.search-empty__title {
  font-size: var(--fs-h4);
  color: var(--ink-700);
  margin-bottom: var(--s-2);
}

/* ==================================================
   STANDALONE SEARCH PAGE
   /search.html reuses the same result markup so the
   overlay and the page never drift apart.
================================================== */

.search-page__form {
  display: flex;
  gap: var(--s-3);
  margin-bottom: var(--s-8);
}

.search-page__form .form-control { min-height: 54px; }

.search-page .search-results { gap: var(--s-3); }

.search-page .search-result {
  border: 1px solid var(--color-border);
  background-color: var(--surface);
  padding: var(--s-5);
}