/* Shared components: header, navigation, buttons, links, section headings, service and
   project cards, footer and newsletter form. Page layouts live in their own page CSS file. */

/* ---------------------------------------------------------------- Header */

.site-header {
  position: relative;
  z-index: 20;
  background: var(--color-white);
  border-bottom: var(--rule);
}

.site-header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  grid-template-areas: "brand nav tools";
  align-items: center;
  column-gap: var(--space-6);
  min-height: var(--header-height);
}

.site-header__brand {
  grid-area: brand;
  justify-self: start;
  display: block;
  margin-inline-start: -1px;
  border-radius: var(--radius-control);
}

.site-logo {
  width: 182px;
  height: auto;
}

.site-nav {
  grid-area: nav;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 30px;
}

.site-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  min-height: var(--header-height);
  font-size: var(--fs-nav);
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.15s ease;
}

.site-nav__link:not(.is-disabled):hover,
.site-nav__link.is-current {
  color: var(--color-brand);
}

.site-nav__link.is-current {
  font-weight: 600;
}

.site-nav__link.is-current::after {
  content: "";
  position: absolute;
  inset-inline: -6px;
  bottom: 5px;
  height: 3px;
  border-radius: 2px;
  background: var(--color-brand);
}

.site-nav__link:focus-visible {
  outline-offset: -2px;
}

.site-header__tools {
  grid-area: tools;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-tool {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 35px;
  padding: 0;
  border: var(--border);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  color: var(--color-black);
  line-height: 1;
}

.header-tool--pill {
  min-width: 50px;
  padding-inline: 12px;
  font-size: var(--fs-ui);
  font-weight: 500;
}

.header-tool--round {
  width: 36px;
  height: 36px;
  font-size: 18px;
}

.header-tool:disabled {
  cursor: not-allowed;
  opacity: 1;
}

.menu-toggle {
  grid-area: toggle;
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: var(--border);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  color: var(--color-black);
  font-size: 22px;
}

.menu-toggle__close,
.menu-toggle[aria-expanded="true"] .menu-toggle__open {
  display: none;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__close {
  display: block;
}

@media (max-width: 767px) {
  .site-header__inner {
    grid-template-columns: 1fr auto auto;
    grid-template-areas:
      "brand tools toggle"
      "nav nav nav";
    column-gap: var(--space-2);
    min-height: 60px;
  }

  .site-logo {
    width: 150px;
  }

  .js .menu-toggle:not([hidden]) {
    display: inline-flex;
  }

  .site-header__tools {
    gap: var(--space-2);
  }

  .site-nav__list {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0 var(--space-6);
    padding-block-end: var(--space-2);
  }

  .site-nav__link {
    min-height: 44px;
  }

  /* With JavaScript the navigation becomes a disclosure panel under the header bar. */
  .js .site-nav {
    display: none;
  }

  .js .site-header.is-menu-open .site-nav {
    display: block;
  }

  .js .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-block: var(--space-2) var(--space-3);
    border-top: var(--rule);
  }

  .js .site-nav__link {
    min-height: 48px;
    padding-inline: var(--space-1);
  }

  .js .site-nav__item + .site-nav__item {
    border-top: var(--border);
  }

  .js .site-nav__link.is-current::after {
    inset-inline: var(--space-1) auto;
    bottom: 9px;
    width: 28px;
  }
}

@media (max-width: 359px) {
  .site-logo {
    width: 132px;
  }

  .header-tool--pill {
    min-width: 44px;
    padding-inline: 8px;
  }
}

/* --------------------------------------------------------------- Buttons */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: var(--control-height);
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: var(--fs-ui);
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.button .icon {
  font-size: 20px;
}

.button--primary {
  background: var(--color-brand);
  border-color: var(--color-brand);
  color: var(--color-white);
}

.button--primary:hover {
  background: var(--color-white);
  color: var(--color-brand);
}

.button--outline {
  background: var(--color-white);
  border-color: var(--color-black);
  color: var(--color-black);
}

.button--outline:hover {
  border-color: var(--color-brand);
  color: var(--color-brand);
}

.button:disabled {
  cursor: not-allowed;
}

/* ------------------------------------------------------------ Text links */

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 24px;
  color: var(--color-brand);
  font-size: var(--fs-small);
  font-weight: 600;
  line-height: 1.5;
}

.text-link .icon {
  font-size: 18px;
}

.text-link:not(.is-disabled):hover {
  text-decoration: underline;
  text-underline-offset: 5px;
}

/* ------------------------------------------------------- Section heading */

.section-heading {
  display: grid;
  justify-items: center;
  text-align: center;
}

.section-heading::before {
  content: "";
  width: var(--accent-width);
  height: var(--accent-height);
  margin-block-end: 6px;
  background: var(--color-brand);
}

.section-heading__title {
  font-size: var(--fs-section);
  font-weight: var(--weight-heading);
  line-height: 1.45;
}

.section-heading__subtitle {
  margin-block-start: 2px;
  font-size: var(--fs-ui);
  line-height: 1.6;
}

/* ---------------------------------------------------------- Service card */

.service-card {
  display: grid;
  justify-items: center;
  align-content: start;
  text-align: center;
}

.service-card__icon {
  width: auto;
  height: 80px;
  object-fit: contain;
}

.service-card__title {
  margin-block-start: 1px;
  font-size: var(--fs-service-title);
  line-height: 1.7;
  text-wrap: balance;
}

.service-card__text {
  margin-block-start: 1px;
  font-size: var(--fs-body);
  line-height: 29px;
}

/* ---------------------------------------------------------- Project card */

.project-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 2px;
  border: var(--border);
  border-radius: var(--radius-card);
  background: var(--color-white);
}

.project-card__image {
  width: 100%;
  max-width: 340px;
  margin-inline: auto;
  aspect-ratio: 283 / 142;
  object-fit: cover;
  border-radius: 2px;
}

.project-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 5px 13px 7px 9px;
}

.project-card__title {
  font-size: var(--fs-card-title);
  line-height: 1.6;
  text-wrap: balance;
}

.project-card__subtitle {
  font-size: var(--fs-small);
  line-height: 1.6;
}

.project-card__link {
  align-self: flex-end;
  margin-block-start: auto;
  padding-block-start: 3px;
}

/* ---------------------------------------------------------------- Footer */

.site-footer {
  border-top: var(--rule-strong);
  font-size: var(--fs-small);
  line-height: 1.6;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 398px 202px 110px minmax(0, 1fr);
  column-gap: 49px;
  row-gap: var(--space-8);
  padding-block: 12px 0;
}

.footer-block__title {
  margin-block-end: 5px;
  font-size: var(--fs-small);
  font-weight: var(--weight-heading);
  line-height: 1.6;
}

/* Keeps the newsletter content 350px wide while its column also absorbs the wider gap. */
.footer-block--newsletter {
  padding-inline-end: 48px;
}

.footer-block__text {
  font-size: var(--fs-small);
  line-height: 1.6;
}

/* Newsletter */

.newsletter-form {
  margin-block-start: 8px;
}

.newsletter-form__field {
  display: flex;
  height: 41px;
  border: var(--border);
  border-radius: var(--radius-control);
  background: var(--color-white);
}

.newsletter-form__field:focus-within {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.newsletter-form__input {
  flex: 1;
  min-width: 0;
  padding: 0 14px;
  border: 0;
  border-radius: var(--radius-control);
  background: transparent;
  font-size: var(--fs-small);
  text-align: left;
}

.newsletter-form__input:placeholder-shown {
  direction: rtl;
  text-align: right;
}

.newsletter-form__input::placeholder {
  color: var(--color-black);
  opacity: var(--muted-opacity);
}

.newsletter-form__input:focus-visible {
  outline: none;
}

.newsletter-form__submit {
  flex: none;
  min-width: 93px;
  min-height: 0;
  margin: -1px;
  padding-inline: 20px;
  border-radius: var(--radius-control);
  font-size: var(--fs-ui);
}

.newsletter-form__submit:focus-visible {
  outline-offset: 2px;
}

.newsletter-form__status {
  margin-block-start: 6px;
  font-size: var(--fs-xsmall);
  font-weight: 500;
  line-height: 1.6;
}

.newsletter-form__status:empty {
  display: none;
}

.newsletter-form__status.is-error {
  color: var(--color-black);
}

.newsletter-form__status.is-info {
  color: var(--color-brand);
}

/* Contact */

.contact-list__items {
  display: grid;
  gap: 1px;
}

.contact-list__item {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: var(--fs-xsmall);
  line-height: 1.55;
}

.contact-list__item .icon {
  margin-block-start: 0.2em;
  font-size: 14px;
}

.contact-list__link {
  display: inline-block;
  /* 24px hit area without changing the line rhythm */
  padding-block: 2px;
  margin-block: -2px;
}

.contact-list__link:hover {
  color: var(--color-brand);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Quick links */

.footer-links {
  display: grid;
  gap: 0;
}

.footer-links__link {
  display: inline-block;
  padding-block: 1px;
  margin-block: -1px;
  font-size: var(--fs-small);
  line-height: 1.6;
}

.footer-links__link:not(.is-disabled):hover {
  color: var(--color-brand);
}

/* Brand */

.footer-block--brand {
  display: grid;
  justify-items: end;
  align-content: start;
  text-align: left;
}

.site-logo--footer {
  width: 185px;
}

.footer-block__tagline {
  margin-block-start: 1px;
  font-size: var(--fs-small);
  line-height: 1.6;
}

.social-list {
  display: flex;
  gap: 1px;
  margin-block-start: 5px;
  margin-inline-end: -6px;
}

.social-list__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-control);
  font-size: 21px;
}

.social-list__link:not(.is-disabled):hover {
  color: var(--color-brand);
}

/* Legal row */

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2) var(--space-6);
  margin-block-start: 10px;
  padding-block: 8px 11px;
  border-top: var(--rule);
}

.legal-links__list {
  display: flex;
  align-items: center;
}

.legal-links__list > li + li {
  margin-inline-start: 13px;
  padding-inline-start: 13px;
  border-inline-start: 2px solid var(--color-black);
  line-height: 1;
}

.legal-links__link {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  font-size: var(--fs-small);
}

.legal-links__link:not(.is-disabled):hover {
  color: var(--color-brand);
}

.site-footer__copyright {
  font-size: var(--fs-xsmall);
}

@media (max-width: 1180px) {
  .site-footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--space-10);
  }

  .footer-block--newsletter {
    padding-inline-end: 0;
  }

  .footer-block--brand {
    justify-items: start;
    text-align: start;
  }

  .social-list {
    margin-inline: -6px 0;
  }
}

@media (max-width: 599px) {
  .site-footer__grid {
    grid-template-columns: minmax(0, 1fr);
    row-gap: var(--space-6);
    padding-block-start: var(--space-6);
  }

  .site-footer__legal {
    flex-direction: column;
    align-items: flex-start;
    margin-block-start: var(--space-6);
    padding-block: var(--space-3) var(--space-4);
  }
}

/* ======================================================================
   Components added with the portfolio page (reusable on later pages)
   ====================================================================== */

/* Compact button: header call-to-action */
.button--compact {
  min-height: 40px;
  padding-inline: 20px;
  font-size: var(--fs-small);
}

.button--compact .icon {
  font-size: 18px;
}

@media (max-width: 400px) {
  .header-cta {
    min-height: 40px;
    padding-inline: 14px;
  }

  .header-cta .icon {
    display: none;
  }
}

/* Filter chips: real toggle buttons (aria-pressed); disabled until the script is ready */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.filter-chip {
  min-height: 44px;
  padding: 0 26px;
  border: var(--border);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  color: var(--color-black);
  font-size: var(--fs-ui);
  font-weight: 500;
  line-height: 1.2;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.filter-chip:not(:disabled):hover {
  border-color: var(--color-brand);
  color: var(--color-brand);
}

.filter-chip.is-active,
.filter-chip[aria-pressed="true"] {
  border-color: var(--color-brand);
  background: var(--color-brand);
  color: var(--color-white);
  font-weight: 600;
}

.filter-chip:disabled {
  cursor: default;
}

/* Tags */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  padding: 2px 8px;
  border: var(--border);
  border-radius: var(--radius-control);
  font-size: 12px;
  line-height: 1.75;
  white-space: nowrap;
}

/* Facts: icon, label, value */
.fact-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.fact {
  display: grid;
  justify-items: center;
  align-content: start;
  gap: 2px;
  padding: 14px 8px 12px;
  border: var(--border);
  border-radius: var(--radius-panel);
  text-align: center;
}

.fact__icon {
  width: auto;
  height: 30px;
  margin-block-end: 6px;
  color: var(--color-brand);
  font-size: 30px;
}

.fact svg.fact__icon {
  width: 30px;
}

.fact__label {
  color: var(--color-brand);
  font-size: var(--fs-ui);
  font-weight: 700;
  line-height: 1.5;
}

.fact__value {
  font-size: var(--fs-ui);
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.fact__value--link {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.fact__value--link:hover {
  color: var(--color-brand);
}

/* Tabs: without JavaScript every panel is shown with its own heading; the script turns the
   block into a WAI-ARIA tablist (roles, aria-selected, roving tabindex, RTL arrow keys). */
.tabs__list {
  display: flex;
  flex-wrap: wrap;
  border-bottom: var(--rule);
}

.tabs__tab {
  position: relative;
  min-height: 44px;
  padding: 0 18px;
  border: 0;
  background: none;
  color: var(--color-black);
  font-size: var(--fs-body);
  font-weight: 500;
}

.tabs__tab:hover {
  color: var(--color-brand);
}

.tabs__tab[aria-selected="true"] {
  color: var(--color-brand);
  font-weight: 700;
}

.tabs__tab[aria-selected="true"]::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: -2px;
  height: 3px;
  border-radius: 2px;
  background: var(--color-brand);
}

.tabs__tab:focus-visible {
  outline-offset: -3px;
}

.tabs__panel + .tabs__panel {
  margin-block-start: 14px;
}

.tabs.is-enhanced .tabs__panel + .tabs__panel {
  margin-block-start: 0;
}

.tabs__heading {
  margin-block-end: 4px;
  color: var(--color-brand);
  font-size: var(--fs-ui);
}

.tabs.is-enhanced .tabs__panel {
  padding-block-start: 16px;
}

.tabs__text {
  font-size: 17px;
  line-height: 1.9;
}

/* Gallery: stage + optional thumbnails. Images are shown whole (contain) and never enlarged
   beyond their own pixel size. */
.gallery__stage {
  display: grid;
  grid-template: minmax(0, 1fr) / minmax(0, 1fr);
  place-items: center;
  aspect-ratio: 1.26;
  min-height: 0;
  padding: 8px;
  border: var(--border);
  border-radius: var(--radius-panel);
  background: var(--color-white);
}

.gallery__stage picture,
.gallery__thumb picture {
  display: contents;
}

.gallery__image {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
}

.gallery__thumbs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-block-start: 12px;
}

.gallery__thumb {
  display: grid;
  grid-template: minmax(0, 1fr) / minmax(0, 1fr);
  place-items: center;
  width: 100%;
  aspect-ratio: 1.4;
  min-height: 0;
  padding: 4px;
  border: var(--border);
  border-radius: var(--radius-control);
  background: var(--color-white);
}

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

.gallery__thumb[aria-pressed="true"] {
  padding: 3px;
  border: 2px solid var(--color-brand);
}

.gallery__thumb:not(:disabled):hover {
  border-color: var(--color-brand);
}

.gallery__thumb:disabled {
  cursor: default;
}

/* ======================================================================
   Components added with the about page
   ====================================================================== */

/* Language pills (header variant "language"): FA is the current language, EN is disabled
   until a real translation exists. */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: var(--border);
  border-radius: 50%;
  background: var(--color-white);
  color: var(--color-black);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
}

.lang-pill.is-current {
  border-color: var(--color-brand);
  background: var(--color-brand);
  color: var(--color-white);
}

.lang-pill:disabled {
  cursor: not-allowed;
  opacity: 1;
}

/* Compact footer (page option "footerNewsletter": false): contact, quick links and brand. */
@media (min-width: 1024px) {
  .site-footer--compact .site-footer__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: var(--space-12);
  }

  .site-footer--compact .footer-block--brand {
    justify-items: end;
    text-align: left;
  }

  .site-footer--compact .social-list {
    margin-inline: 0 -6px;
  }
}

/* ======================================================================
   Shared layout moved out of about.css (used by about and contact)
   ====================================================================== */

/* Media split: text beside an illustration that bleeds to the window edge (about, contact).
   RTL columns are listed from the right: "media-left" = gutter · text · illustration,
   "media-right" = illustration · text · gutter. Stacks (text first) below 768px. */
.media-split {
  --side: max(var(--gutter), (100% - var(--content-max)) / 2);
  --text: calc((100% - 2 * var(--side)) * 0.43);
  --text-narrow: calc((100% - 2 * var(--side)) * 0.38);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  row-gap: var(--space-6);
}

.media-split__content {
  min-width: 0;
  padding-inline: var(--gutter);
}

.media-split__media {
  display: grid;
  min-width: 0;
  margin: 0;
}

.media-split__media img {
  width: 100%;
  height: auto;
}

@media (min-width: 768px) {
  .media-split {
    align-items: center;
    column-gap: 0;
  }

  .media-split--media-left {
    grid-template-columns: var(--side) var(--text) minmax(0, 1fr);
  }

  .media-split--media-left .media-split__content {
    grid-column: 2;
    grid-row: 1;
    padding-inline: 0 clamp(20px, 3vw, 40px);
  }

  .media-split--media-left .media-split__media {
    grid-column: 3;
    grid-row: 1;
  }

  .media-split--media-right {
    grid-template-columns: minmax(0, 1fr) var(--text-narrow) var(--side);
  }

  .media-split--media-right .media-split__content {
    grid-column: 2;
    grid-row: 1;
    padding-inline: clamp(20px, 3vw, 40px) 0;
  }

  .media-split--media-right .media-split__media {
    grid-column: 1;
    grid-row: 1;
  }

  /* Illustrations are shown whole; on very wide screens the height is capped and the drawing
     stays against its window edge (its white paper fills the rest). */
  .media-split__media img {
    max-height: 560px;
    object-fit: contain;
  }

  .media-split--media-left .media-split__media img {
    object-position: left center;
  }

  .media-split--media-right .media-split__media img {
    object-position: right center;
  }
}

/* Framed illustration: the studio drawing fades into white paper on its right; a 1.3:1 frame
   trims only that blank paper so the drawing itself fills the column. */
@media (min-width: 768px) {
  .media-split__media--framed {
    position: relative;
    align-self: end;
    width: 100%;          /* width from the column, height from the ratio (never the reverse) */
    aspect-ratio: 1.3;
    min-height: 0;
    max-height: 640px;    /* very wide screens: trims only paper above and below the drawing */
    overflow: hidden;
  }

  .media-split__media--framed picture {
    display: contents;
  }

  /* Out of flow, so the frame's height comes only from its ratio and cap, never from the image. */
  .media-split .media-split__media--framed img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    max-height: none;
    object-fit: cover;
    object-position: left center;
  }
}

/* Footer with a services column (page option "footerServices": true, the contact page):
   contact · services · useful links · brand from the right, thin green rules between the
   first three columns and chevrons before the links. */
.site-footer--services .footer-links__link::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-inline-end: 10px;
  border-left: 1.5px solid var(--color-brand);
  border-bottom: 1.5px solid var(--color-brand);
  transform: translateY(-2px) rotate(45deg);
}

@media (min-width: 1024px) {
  .site-footer--services .site-footer__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr) minmax(0, 0.8fr) minmax(0, 1.15fr);
    column-gap: var(--space-8);
  }

  .site-footer--services .footer-block--contact,
  .site-footer--services .footer-block--services {
    padding-inline-end: var(--space-8);
    border-inline-end: var(--rule);
  }
}