/* ==========================================================================
   Services page — assets/services.css
   Page-specific layout for services.html / services-ar.html. Loads after
   home.css, which supplies the shared primitives (.hm-wrap, .hm-eyebrow,
   .hm-title, .hm-lede, .hm-btn*, .hm-link, .hm-section*, .hm-cta*, .rv).
   Everything here is prefixed .sv- and uses logical properties for RTL.

   --sv-nav-h is the measured height of the fixed navbar; services.js keeps
   it current so the sticky rail and the anchor offsets track the real bar.
   ========================================================================== */

:root {
  --sv-nav-h: 130px;
}

/* --- Statement hero (white) ------------------------------------------------- */

.sv-hero {
  padding-top: clamp(9rem, 16vh, 12rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
  background: var(--bg-primary);
}

.sv-crumb {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}
.sv-crumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}
.sv-crumb a:hover { color: var(--accent-gold); }
.sv-crumb span[aria-current] { color: var(--accent-gold); }
.sv-crumb .sep { opacity: 0.5; }

.sv-hero-grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

.sv-hero h1 {
  font-family: var(--font-heading);
  font-weight: 300;
  font-size: clamp(2.5rem, 5.6vw, 4.75rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  text-wrap: balance;
  max-width: 15ch;
}
.sv-hero h1 em {
  font-style: normal;
  color: var(--accent-gold);
}

.sv-hero .hm-lede {
  margin-top: 1.5rem;
  max-width: 32rem;
}

.sv-hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.25rem;
}

/* Four photo tiles, one per service, each a jump link to its chapter. The
   second column is nudged down so the block reads as a composition rather
   than a grid of thumbnails. */
.sv-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  max-width: 34rem;
  margin-inline: auto;
}
.sv-index > :nth-child(even) { margin-top: 1.75rem; }
.sv-index > :nth-child(odd):last-child { margin-top: 0; }

.sv-tile {
  position: relative;
  display: block;
  aspect-ratio: 1;
  border-radius: 4px;
  overflow: hidden;
  background: var(--hm-ink-on-dark);
  color: var(--on-image);
  text-decoration: none;
  box-shadow: var(--shadow-card);
}
.sv-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.2s var(--hm-ease);
}
.sv-tile-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(18, 14, 11, 0.88) 0%, rgba(18, 14, 11, 0.35) 45%, rgba(18, 14, 11, 0.05) 100%);
  transition: opacity 0.5s ease;
}
.sv-tile-body {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  padding: 1rem 1.1rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 0.75rem;
}
.sv-tile-num {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-gold-bright);
  margin-bottom: 0.3rem;
}
.sv-tile-name {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.05rem;
  line-height: 1.2;
  color: var(--on-image);
  text-wrap: balance;
}
.sv-tile .hm-arrow {
  width: 1.3rem;
  height: 1.3rem;
  flex: 0 0 auto;
  color: var(--accent-gold-bright);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.sv-tile:hover img { transform: scale(1.06); }
.sv-tile:hover .hm-arrow { opacity: 1; }
.sv-tile:focus-visible { outline: 2px solid var(--accent-gold); outline-offset: 3px; }

@media (min-width: 900px) {
  .sv-hero-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 4rem;
  }
  .sv-index { margin-inline: auto 0; max-width: 36rem; gap: 1rem; }
  [dir="rtl"] .sv-index { margin-inline: 0 auto; }
  .sv-index > :nth-child(even) { margin-top: 2.5rem; }
  .sv-tile-name { font-size: 1.15rem; }
}

/* --- Chapters + rail --------------------------------------------------------- */

.sv-body {
  padding-block: 0 var(--hm-section-y);
  border-top: 1px solid var(--rule-soft);
}

.sv-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
}
.sv-layout > * { min-width: 0; }

/* The aside is the sticky element, not the rail: a sticky box only sticks
   within its parent, and the aside (which spans the whole chapter column
   in the grid) is the parent that is actually tall. */
.sv-aside {
  position: sticky;
  top: var(--sv-nav-h);
  z-index: 5;
  align-self: start;
}

/* Phones and tablets: a sticky chip bar directly under the navbar. */
.sv-rail {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  margin-inline: calc(-1 * var(--hm-pad-x) - 2rem);
  padding: 0.65rem calc(var(--hm-pad-x) + 2rem);
  background: var(--bg-primary);
  border-bottom: 1px solid var(--rule-soft);
}
.sv-rail::-webkit-scrollbar { display: none; }

.sv-rail a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  white-space: nowrap;
  background: var(--bg-primary);
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.sv-rail a span {
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  color: var(--accent-gold);
}
.sv-rail a.is-active {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: #fff;
}
.sv-rail a.is-active span { color: var(--accent-gold-bright); }

.sv-rail-note { display: none; }

.sv-chapters {
  display: grid;
  gap: 0;
  padding-top: 1rem;
}

.sv-chapter {
  padding-block: clamp(3rem, 6vw, 5rem);
  border-bottom: 1px solid var(--rule);
  /* Land below the fixed navbar and the sticky chip bar on deep links. */
  scroll-margin-top: calc(var(--sv-nav-h) + 4rem);
}
.sv-chapter:first-child { padding-top: clamp(1.5rem, 3vw, 2.5rem); }
.sv-chapter:last-child { border-bottom: 0; padding-bottom: 0; }

.sv-chapter-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num sub"
    "num title"
    ".   desc";
  column-gap: 1.25rem;
  align-items: start;
}
.sv-num {
  grid-area: num;
  font-family: var(--font-heading);
  font-weight: 300;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 0.85;
  color: var(--accent-gold);
  padding-top: 0.15rem;
}
.sv-chapter-head .hm-eyebrow { grid-area: sub; margin-bottom: 0.6rem; }
.sv-chapter h2 {
  grid-area: title;
  font-family: var(--font-heading);
  font-weight: 300;
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-wrap: balance;
}
.sv-desc {
  grid-area: desc;
  margin-top: 1.1rem;
  font-size: clamp(1rem, 1.15vw, 1.1rem);
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 40rem;
}

/* Photo mosaic: one lead image and two supporting tiles from real jobs. */
.sv-media {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-block: 2rem;
}
.sv-media figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: 4px;
  background: var(--bg-secondary);
}
.sv-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.2s var(--hm-ease);
}
.sv-media figure:hover img { transform: scale(1.04); }
.sv-media-main { grid-column: 1 / -1; aspect-ratio: 16 / 10; }
.sv-media-tile { aspect-ratio: 4 / 3; }
.sv-media figcaption {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  padding: 1.5rem 0.9rem 0.7rem;
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-image-muted);
  background: linear-gradient(to top, rgba(18, 14, 11, 0.82), transparent);
  pointer-events: none;
}

.sv-details {
  display: grid;
  gap: 2rem;
}

.sv-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.9rem;
}

.sv-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem 1.5rem;
}
.sv-list li {
  position: relative;
  padding-inline-start: 1.1rem;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-light);
}
.sv-list li::before {
  content: '';
  position: absolute;
  inset-inline-start: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--accent-gold-bright);
  transform: rotate(45deg);
}

.sv-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.sv-tags li {
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: var(--bg-primary);
}

.sv-more { margin-top: 1.75rem; }

@media (min-width: 760px) {
  .sv-media {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    grid-template-rows: 1fr 1fr;
    gap: 1rem;
  }
  .sv-media-main { grid-column: 1; grid-row: 1 / 3; aspect-ratio: auto; min-height: 0; }
  .sv-details { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 3rem; }
}

/* Desktop: the rail becomes a sticky column of numbered links. */
@media (min-width: 1000px) {
  .sv-layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: 4.5rem;
    align-items: start;
  }
  .sv-aside {
    top: calc(var(--sv-nav-h) + 1.5rem);
    z-index: 1;
  }
  .sv-rail {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    margin: 0;
    padding: clamp(1.5rem, 3vw, 2.5rem) 0 0;
    border-bottom: 0;
    background: transparent;
  }
  .sv-rail a {
    position: relative;
    border: 0;
    border-bottom: 1px solid var(--rule);
    border-radius: 0;
    padding: 1rem 0;
    gap: 1rem;
    font-family: var(--font-heading);
    font-size: 1.05rem;
    background: transparent;
    white-space: normal;
    transition: color 0.3s ease, padding-inline-start 0.5s var(--hm-ease);
  }
  .sv-rail a:first-child { border-top: 1px solid var(--rule); }
  .sv-rail a::after {
    content: '';
    position: absolute;
    inset-inline-start: 0;
    bottom: -1px;
    height: 1px;
    width: 0;
    background: var(--accent-gold);
    transition: width 0.6s var(--hm-ease);
  }
  .sv-rail a:hover { color: var(--text-primary); }
  .sv-rail a.is-active {
    background: transparent;
    color: var(--text-primary);
    padding-inline-start: 0.4rem;
  }
  .sv-rail a.is-active::after { width: 100%; }
  .sv-rail a.is-active span { color: var(--accent-gold); }
  .sv-rail-note {
    display: block;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    line-height: 1.65;
    color: var(--text-muted);
  }
  .sv-rail-note a { color: var(--text-primary); text-decoration: underline; text-underline-offset: 3px; }
  .sv-chapters { padding-top: 0; }
  .sv-chapter { scroll-margin-top: calc(var(--sv-nav-h) + 1.5rem); }
  .sv-chapter-head { column-gap: 1.75rem; }
}

/* --- "Where to start" cards ---------------------------------------------------- */

.sv-cases {
  display: grid;
  gap: 1rem;
}

.sv-case {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding: 1.75rem 1.5rem;
  background: var(--bg-primary);
  border: 1px solid var(--rule-soft);
  border-radius: var(--hm-radius);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: inherit;
  transition: transform 0.6s var(--hm-ease), box-shadow 0.6s ease, border-color 0.3s ease;
}
.sv-case:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(140, 97, 52, 0.35);
}

.sv-case-say {
  font-family: var(--font-heading);
  font-weight: 300;
  font-size: 1.35rem;
  line-height: 1.3;
  color: var(--text-primary);
  text-wrap: balance;
}
.sv-case-say::before {
  content: '\201C';
  display: block;
  font-size: 2.6rem;
  line-height: 0.6;
  color: var(--accent-gold-bright);
  margin-bottom: 0.5rem;
}

.sv-case-body {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.sv-case-go {
  margin-top: auto;
  padding-top: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--accent-gold);
  transition: gap 0.4s var(--hm-ease);
}
.sv-case:hover .sv-case-go { gap: 0.85rem; }

@media (min-width: 900px) {
  .sv-cases { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; }
  .sv-case { padding: 2.25rem 2rem; }
  .sv-case-say { font-size: 1.5rem; }
}

/* --- FAQ ----------------------------------------------------------------------- */

.sv-faq {
  display: grid;
  gap: 2.5rem;
}

.sv-faq-intro .hm-lede { margin-top: 1.25rem; }
.sv-faq-intro .hm-link { margin-top: 1.5rem; }

.sv-acc {
  border-top: 1px solid var(--rule);
}
.sv-acc details {
  border-bottom: 1px solid var(--rule);
}
.sv-acc summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: 1.35rem 0;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.12rem;
  line-height: 1.35;
  color: var(--text-primary);
  transition: color 0.3s ease;
}
.sv-acc summary::-webkit-details-marker { display: none; }
.sv-acc summary:hover { color: var(--accent-gold); }
.sv-acc summary:focus-visible { outline: 2px solid var(--accent-gold); outline-offset: 4px; }

.sv-acc-icon {
  position: relative;
  flex: 0 0 auto;
  width: 1.7rem;
  height: 1.7rem;
  border: 1px solid var(--rule-strong);
  border-radius: 50%;
  transition: transform 0.5s var(--hm-ease), background-color 0.3s ease, border-color 0.3s ease;
}
.sv-acc-icon::before,
.sv-acc-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.7rem;
  height: 1px;
  background: var(--text-primary);
  transform: translate(-50%, -50%);
  transition: background-color 0.3s ease;
}
.sv-acc-icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.sv-acc details[open] .sv-acc-icon {
  transform: rotate(45deg);
  background: var(--text-primary);
  border-color: var(--text-primary);
}
.sv-acc details[open] .sv-acc-icon::before,
.sv-acc details[open] .sv-acc-icon::after { background: #fff; }

.sv-acc-body {
  padding: 0 0 1.5rem;
  padding-inline-end: 3rem;
  font-size: 0.98rem;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 42rem;
}
.sv-acc-body a { color: var(--text-primary); text-decoration: underline; text-underline-offset: 3px; }

@media (min-width: 900px) {
  .sv-faq {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 5rem;
    align-items: start;
  }
  .sv-faq-intro { position: sticky; top: calc(var(--sv-nav-h) + 1.5rem); }
  .sv-acc summary { padding: 1.6rem 0; font-size: 1.2rem; }
}

/* --- Motion preferences --------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .sv-tile img, .sv-media img, .sv-case, .sv-rail a, .sv-acc-icon { transition: none; }
}