/* Tech Core — one stylesheet for both directions.
   Layout uses logical properties only (inline/block), so RTL and LTR
   mirror correctly without duplicated rules. */

:root {
  --bg: #0E1520;
  --bg-raised: #142030;
  --bg-sunken: #0B111A;
  --line: #22324A;
  --line-strong: #34496A;
  --text: #E4EAF1;
  --muted: #93A3B6;
  --accent: #74C7EC;
  --accent-ink: #062031;
  --focus: #FFD27A;
  --led-live: #5BD49A;
  --led-progress: #E8B44C;
  --led-concept: #A3B1FF;
  --led-archived: #7A8797;
  --danger: #F49A8F;

  --font-latin: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-arabic: "IBM Plex Sans Arabic", "IBM Plex Sans", "Segoe UI", Tahoma, "Geeza Pro", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --wrap: 1180px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --radius-l: 16px;
  --radius-m: 10px;
  --radius-s: 6px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-block-start: 5rem; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-latin);
  font-size: 1.0625rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* Language-specific typography: Arabic gets its own face, a touch more size
   and line height, and never letter-spacing (it breaks letter joining). */
:lang(ar) { font-family: var(--font-arabic); }
html:lang(ar) body { font-size: 1.125rem; line-height: 1.85; }
:lang(en) { font-family: var(--font-latin); }
:lang(ar) h1, :lang(ar) h2, :lang(ar) h3 { letter-spacing: 0 !important; line-height: 1.4; }

img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--accent); color: var(--accent-ink); }

h1, h2, h3 { line-height: 1.2; margin: 0; font-weight: 600; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.1rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.35rem, 2.4vw, 1.7rem); letter-spacing: -0.01em; }
h3 { font-size: 1.2rem; }
p { margin: 0; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }

/* Directional icons mirror in RTL */
.icon { flex: none; }
[dir="rtl"] .flip { transform: scaleX(-1); }
.back.flip { transform: scaleX(-1); }
[dir="rtl"] .back.flip { transform: none; }

.skip-link { position: absolute; inset-inline-start: 1rem; inset-block-start: -4rem; z-index: 100; background: var(--accent); color: var(--accent-ink); padding: 0.6rem 1rem; border-radius: var(--radius-s); font-weight: 600; }
.skip-link:focus { inset-block-start: 1rem; }
main:focus { outline: none; }

/* ---------- Header ---------- */
.site-header { position: sticky; inset-block-start: 0; z-index: 50; background: rgb(14 21 32 / 0.88); backdrop-filter: blur(12px); border-block-end: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; gap: 1.5rem; min-height: 4.25rem; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--text); text-decoration: none; font-weight: 600; font-size: 1.05rem; flex: none; }
.brand-name { font-family: var(--font-latin); letter-spacing: -0.01em; }
.site-nav { margin-inline-start: auto; }
.site-nav ul { display: flex; gap: 0.25rem; list-style: none; margin: 0; padding: 0; }
.site-nav a { display: block; padding: 0.5rem 0.75rem; color: var(--muted); text-decoration: none; font-size: 0.95rem; border-radius: var(--radius-s); white-space: nowrap; }
.site-nav a:hover { color: var(--text); background: var(--bg-raised); }
.site-nav a[aria-current="page"] { color: var(--text); box-shadow: inset 0 -2px 0 var(--accent); border-radius: 0; }
.header-actions { display: flex; align-items: center; gap: 0.5rem; }
.lang-switch { display: inline-flex; align-items: center; gap: 0.45rem; padding: 0.45rem 0.9rem; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--text); text-decoration: none; font-weight: 500; font-size: 0.95rem; white-space: nowrap; }
.lang-switch:hover { border-color: var(--accent); color: var(--accent); }
.lang-switch .icon { color: var(--accent); }
.menu-toggle { display: none; background: none; border: 1px solid var(--line-strong); color: var(--text); border-radius: var(--radius-m); padding: 0.45rem; cursor: pointer; }

@media (max-width: 960px) {
  .menu-toggle { display: inline-flex; }
  .header-actions { margin-inline-start: auto; }
  .site-nav { position: absolute; inset-inline: 0; inset-block-start: 100%; background: var(--bg); border-block-end: 1px solid var(--line); display: none; margin: 0; }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; padding: 0.5rem var(--gutter) 1rem; gap: 0; }
  .site-nav a { padding: 0.85rem 0.25rem; font-size: 1.05rem; border-block-end: 1px solid var(--line); border-radius: 0; }
  .site-nav a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--accent); padding-inline-start: 0.85rem; }
  [dir="rtl"] .site-nav a[aria-current="page"] { box-shadow: inset -3px 0 0 var(--accent); }
}

/* ---------- Notices ---------- */
.notice { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.85rem 1rem; background: var(--bg-raised); border: 1px solid var(--line); border-inline-start: 3px solid var(--accent); border-radius: var(--radius-s); font-size: 0.95rem; }
.notice a { margin-inline-start: 0.35rem; }
.notice-lang { margin-block-start: 1rem; }
.notice-lang[hidden] { display: none; }
.notice-sample { border-inline-start-color: var(--led-progress); margin-block: 1.25rem; display: block; }
.notice-dismiss { background: none; border: 1px solid var(--line-strong); color: var(--text); border-radius: var(--radius-s); padding: 0.3rem 0.7rem; cursor: pointer; font: inherit; font-size: 0.875rem; flex: none; }

/* ---------- Buttons & chips ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; min-height: 2.75rem; padding: 0.6rem 1.15rem; border-radius: var(--radius-m); font: inherit; font-weight: 500; font-size: 0.975rem; text-decoration: none; cursor: pointer; border: 1px solid transparent; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: #9AD7F2; }
.btn-ghost { border-color: var(--line-strong); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--accent); }
.btn[disabled] { opacity: 0.6; cursor: progress; }
.link-button { background: none; border: 0; padding: 0; color: var(--accent); font: inherit; font-size: 0.925rem; cursor: pointer; text-decoration: underline; text-underline-offset: 0.2em; }

.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; list-style: none; margin: 0; padding: 0; }
.chip { display: inline-flex; align-items: center; padding: 0.4rem 0.95rem; border: 1px solid var(--line-strong); border-radius: 999px; background: transparent; color: var(--muted); font: inherit; font-size: 0.9rem; cursor: pointer; text-decoration: none; white-space: nowrap; }
.chip:hover { color: var(--text); border-color: var(--muted); }
.chip[aria-pressed="true"], .chip[aria-current="page"] { background: var(--text); color: var(--bg); border-color: var(--text); }
@media (max-width: 640px) {
  .chips-scroll { flex-wrap: nowrap; overflow-x: auto; padding-block-end: 0.5rem; margin-inline: calc(var(--gutter) * -1); padding-inline: var(--gutter); scrollbar-width: none; }
}

.badge { display: inline-flex; align-items: center; padding: 0.1rem 0.55rem; border-radius: var(--radius-s); font-size: 0.78rem; font-weight: 500; }
.badge-sample { background: rgb(232 180 76 / 0.14); color: var(--led-progress); border: 1px solid rgb(232 180 76 / 0.35); }

.status { display: inline-flex; align-items: center; gap: 0.45rem; font-size: 0.85rem; color: var(--muted); }
.led { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--led-archived); }
.status-live .led { background: var(--led-live); box-shadow: 0 0 0 3px rgb(91 212 154 / 0.18); }
.status-inProgress .led { background: var(--led-progress); }
.status-concept .led { background: var(--led-concept); }

.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; list-style: none; margin: 0; padding: 0; }
.tags li { font-family: var(--font-mono); font-size: 0.8rem; padding: 0.15rem 0.55rem; border: 1px solid var(--line); border-radius: var(--radius-s); color: var(--muted); unicode-bidi: isolate; }

/* ---------- Hero ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); align-items: center; gap: clamp(1.5rem, 4vw, 4rem); padding-block: clamp(3rem, 8vw, 6rem) clamp(2rem, 5vw, 4rem); }
.hero-title { font-size: clamp(3.2rem, 8.4vw, 6.25rem); white-space: nowrap; line-height: 0.95; letter-spacing: -0.045em !important; font-weight: 600; }
.hero-title span { font-family: var(--font-latin); display: inline-block; }
.hero-tagline { margin-block-start: 1rem; font-size: clamp(1.15rem, 2.2vw, 1.5rem); color: var(--accent); font-weight: 500; }
.hero-intro { margin-block-start: 1.25rem; max-width: 36rem; color: var(--muted); font-size: 1.1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-block-start: 2rem; }
.hero-visual { justify-self: center; width: min(100%, 520px); }

.topology .zone { fill: none; stroke: var(--line); stroke-dasharray: 2 6; }
.topology .lk { stroke: var(--line-strong); stroke-width: 1.6; stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 0.7s cubic-bezier(.3,.7,.2,1) forwards; }
.topology .lk-1 { stroke: var(--accent); stroke-width: 2; animation-delay: calc(0.15s + var(--i) * 0.08s); }
.topology .lk-ring { animation-delay: calc(0.6s + var(--i) * 0.08s); }
.topology .lk-2 { animation-delay: calc(0.85s + var(--i) * 0.06s); }
.topology .nd { opacity: 0; transform-box: fill-box; transform-origin: center; animation: pop 0.4s ease-out forwards; }
.topology .nd-1 { fill: var(--bg); stroke: var(--accent); stroke-width: 2; animation-delay: calc(0.55s + var(--i) * 0.08s); }
.topology .nd-2 { fill: var(--bg-raised); stroke: var(--muted); stroke-width: 1.5; animation-delay: calc(1.2s + var(--i) * 0.06s); }
.topology .core { fill: var(--bg-raised); stroke: var(--accent); stroke-width: 2; }
.topology .core-inner { fill: var(--accent); }
.topology .core-pulse { fill: none; stroke: var(--accent); opacity: 0; transform-box: fill-box; transform-origin: center; animation: pulse 1.6s ease-out 1.5s 1; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes pop { from { opacity: 0; transform: scale(0.4); } to { opacity: 1; transform: scale(1); } }
@keyframes pulse { 0% { opacity: 0.8; transform: scale(1); } 100% { opacity: 0; transform: scale(9); } }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
  .hero-visual { width: min(80%, 360px); order: -1; }
}

/* ---------- Sections ---------- */
.section { padding-block: clamp(2.5rem, 6vw, 4.5rem); border-block-start: 1px solid var(--line); }
.section-tight { padding-block: 1rem 4rem; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-block-end: 1.5rem; flex-wrap: wrap; }
.section-intro { color: var(--muted); margin-block: -0.75rem 1.75rem; }
.more-link { display: inline-flex; align-items: center; gap: 0.35rem; text-decoration: none; font-size: 0.95rem; }
.more-link:hover { text-decoration: underline; }

.page-head { padding-block: clamp(2.5rem, 6vw, 4rem) 1.5rem; }
.page-intro { color: var(--muted); font-size: 1.15rem; margin-block-start: 0.75rem; max-width: 42rem; }
.page-actions { margin-block-start: 1.5rem; }

/* Topics: a patch-panel grid with shared borders */
.topic-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); list-style: none; margin: 0; padding: 0; border-block-start: 1px solid var(--line); border-inline-start: 1px solid var(--line); }
.topic-grid li { border-block-end: 1px solid var(--line); border-inline-end: 1px solid var(--line); }
.topic-cell { display: grid; gap: 0.35rem; height: 100%; padding: 1.25rem 1.35rem; color: var(--text); text-decoration: none; }
.topic-cell:hover { background: var(--bg-raised); }
.topic-cell:hover .topic-name { color: var(--accent); }
.topic-name { font-weight: 600; font-size: 1.05rem; }
.topic-desc { color: var(--muted); font-size: 0.92rem; }
.topic-count { font-size: 0.82rem; color: var(--muted); margin-block-start: 0.35rem; }
@media (max-width: 900px) { .topic-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .topic-grid { grid-template-columns: 1fr; } }

/* Projects */
.project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 1.5rem; }
.project-card { display: flex; flex-direction: column; background: var(--bg-raised); border: 1px solid var(--line); border-radius: var(--radius-l); overflow: hidden; }
.project-card:hover { border-color: var(--line-strong); }
.project-card[hidden] { display: none; }
.project-cover { display: block; aspect-ratio: 16 / 9; border-block-end: 1px solid var(--line); }
.project-cover svg, .detail-cover svg, .shot svg { width: 100%; height: 100%; }
.project-body { display: grid; gap: 0.7rem; padding: 1.25rem 1.35rem 1.4rem; align-content: start; }
.card-meta { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.card-title a { color: var(--text); text-decoration: none; }
.card-title a:hover { color: var(--accent); }
.project-body p { color: var(--muted); font-size: 0.97rem; }

.cover .cv-bg { fill: var(--bg-sunken); }
.cover .cv-grid circle { fill: var(--line-strong); }
.cover .cv-links path { fill: none; stroke: var(--line-strong); stroke-width: 1.5; }
.cover .cv-node { fill: var(--bg-raised); stroke: var(--muted); stroke-width: 1.2; }
.cover .cv-accent { fill: var(--accent); }

/* Insights list: rows, not cards */
.insight-list { display: grid; }
.insight-row { display: grid; gap: 0.4rem; padding-block: 1.35rem; border-block-end: 1px solid var(--line); }
.insight-row:first-child { padding-block-start: 0.25rem; }
.insight-row[hidden] { display: none; }
.row-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.35rem 1.1rem; font-size: 0.85rem; color: var(--muted); }
.topic-link { color: var(--accent); text-decoration: none; font-weight: 500; }
.topic-link:hover { text-decoration: underline; }
.row-title { font-size: 1.2rem; }
.row-title a { color: var(--text); text-decoration: none; }
.row-title a:hover { color: var(--accent); }
.insight-row > p { color: var(--muted); max-width: 46rem; }

.home-split { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4rem); }
@media (max-width: 900px) { .home-split { grid-template-columns: 1fr; } }

/* Toolbars, search, empty states */
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-block-end: 1.5rem; }
.result-count { color: var(--muted); font-size: 0.9rem; margin-block: 1rem; }
.toolbar .result-count { margin: 0; }
.search-bar { position: relative; display: flex; align-items: center; gap: 0.75rem; max-width: 40rem; margin-block-end: 1.25rem; padding-inline: 0.9rem; background: var(--bg-raised); border: 1px solid var(--line-strong); border-radius: var(--radius-m); }
.search-bar:focus-within { border-color: var(--accent); }
.search-icon { color: var(--muted); }
.search-bar input { flex: 1; min-width: 0; min-height: 3rem; background: none; border: 0; color: var(--text); font: inherit; outline: none; }
.search-bar input::-webkit-search-cancel-button { display: none; }
.search-bar input::placeholder { color: var(--muted); opacity: 0.85; }
.empty-state { display: grid; justify-items: start; gap: 1rem; padding: 2rem; border: 1px dashed var(--line-strong); border-radius: var(--radius-l); color: var(--muted); }
.empty-state[hidden] { display: none; }
.other-lang { margin-block-start: 3rem; padding-block-start: 2rem; border-block-start: 1px solid var(--line); }
.other-lang h2 { font-size: 1.15rem; }
.other-lang > p { margin-block: 0.4rem 1rem; }

/* ---------- Detail pages ---------- */
.detail { padding-block: 1.75rem 4rem; }
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 0.35rem; list-style: none; margin: 0 0 1.5rem; padding: 0; font-size: 0.9rem; color: var(--muted); }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--text); text-decoration: underline; }
.breadcrumb [aria-current] { color: var(--text); }
.crumb-sep { display: inline-flex; color: var(--line-strong); }
.crumb-sep .icon { width: 14px; height: 14px; }
.detail-head { display: grid; gap: 0.75rem; max-width: 48rem; margin-block-end: 1.5rem; }
.detail-head .page-intro { margin: 0; }
.detail-cover { aspect-ratio: 21 / 8; border: 1px solid var(--line); border-radius: var(--radius-l); overflow: hidden; margin-block: 1.5rem 2.5rem; }
.detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) 18rem; gap: clamp(2rem, 5vw, 4rem); }
.detail-side { display: grid; gap: 0.9rem; align-content: start; padding: 1.4rem; border: 1px solid var(--line); border-radius: var(--radius-l); background: var(--bg-raised); }
.side-title { font-size: 0.95rem; color: var(--muted); font-weight: 500; }
.side-title:not(:first-child) { margin-block-start: 0.75rem; }
.link-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; }
.link-list .btn { width: 100%; justify-content: space-between; }
.link-off { display: flex; justify-content: space-between; gap: 0.5rem; padding: 0.6rem 0.9rem; border: 1px dashed var(--line-strong); border-radius: var(--radius-m); font-size: 0.95rem; }
.link-off .muted { font-size: 0.85rem; }
@media (max-width: 860px) { .detail-grid { grid-template-columns: 1fr; } .detail-cover { aspect-ratio: 16 / 9; } }

.shots { margin-block-start: 3rem; }
.shot-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); gap: 1.25rem; margin-block-start: 1.25rem; }
.shot { margin: 0; }
.shot svg { aspect-ratio: 16 / 9; border: 1px solid var(--line); border-radius: var(--radius-m); }
.shot figcaption { font-size: 0.85rem; color: var(--muted); margin-block-start: 0.5rem; }
.back-link { margin-block-start: 3rem; }
.back-link a { display: inline-flex; align-items: center; gap: 0.45rem; text-decoration: none; }
.related { margin-block-start: 3.5rem; padding-block-start: 2rem; border-block-start: 1px solid var(--line); }
.related h2 { margin-block-end: 1rem; font-size: 1.25rem; }
.article .tags { margin-block-start: 2rem; }

/* Long-form reading */
.prose { max-width: 42rem; }
.prose > * + * { margin-block-start: 1.1em; }
.prose h2 { font-size: 1.4rem; margin-block-start: 2em; }
.prose h3 { margin-block-start: 1.6em; }
.prose ul, .prose ol { padding-inline-start: 1.4em; }
.prose li + li { margin-block-start: 0.4em; }
.prose blockquote { margin-inline: 0; padding-inline-start: 1rem; border-inline-start: 3px solid var(--line-strong); color: var(--muted); }
.prose code { font-family: var(--font-mono); font-size: 0.88em; background: var(--bg-raised); border: 1px solid var(--line); border-radius: 4px; padding: 0.05em 0.35em; unicode-bidi: isolate; }
.prose pre { direction: ltr; text-align: left; background: var(--bg-sunken); border: 1px solid var(--line); border-radius: var(--radius-m); padding: 1rem 1.15rem; overflow-x: auto; font-size: 0.9rem; line-height: 1.6; }
.prose pre code { background: none; border: 0; padding: 0; font-size: inherit; font-family: var(--font-mono); }
.placeholder { padding: 1rem 1.15rem; border: 1px dashed var(--led-progress); border-radius: var(--radius-m); color: var(--muted); font-size: 0.95rem; }

/* ---------- X posts ---------- */
.x-wrap > * { max-width: 44rem; }
.xpost-media img { background: var(--bg-sunken); min-height: 4rem; }
.xpost-stack { display: grid; gap: 1rem; }
.xpost { display: grid; gap: 0.85rem; padding: 1.25rem 1.35rem; background: var(--bg-raised); border: 1px solid var(--line); border-radius: var(--radius-l); }
.xpost[hidden] { display: none; }
.xpost-head { display: flex; align-items: center; gap: 0.75rem; }
.xpost-avatar { display: grid; place-items: center; width: 2.5rem; height: 2.5rem; border-radius: 50%; background: var(--bg-sunken); border: 1px solid var(--line); }
.xpost-avatar svg { width: 22px; height: 22px; }
.xpost-who { display: grid; line-height: 1.3; }
.xpost-who strong { font-family: var(--font-latin); }
.xpost-handle { color: var(--muted); font-size: 0.875rem; }
.xpost-head .badge { margin-inline-start: auto; }
.xpost-text { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 1.05rem; text-align: start; }
.xpost-original { font-size: 0.82rem; color: var(--muted); }
.xpost-media { display: grid; gap: 0.5rem; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.xpost-media img { border-radius: var(--radius-m); border: 1px solid var(--line); width: 100%; height: auto; }
.translation-body { margin-block-start: 0.6rem; padding: 0.85rem 1rem; background: var(--bg-sunken); border-radius: var(--radius-m); border-inline-start: 2px solid var(--accent); }
.translation-label { font-size: 0.8rem; color: var(--muted); margin-block-end: 0.35rem; }
.metrics { display: flex; flex-wrap: wrap; gap: 1.25rem; margin: 0; font-size: 0.875rem; }
.metrics div { display: flex; gap: 0.35rem; }
.metrics dt { color: var(--muted); }
.metrics dd { margin: 0; font-weight: 500; }
.xpost-foot { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-block-start: 0.75rem; border-block-start: 1px solid var(--line); font-size: 0.875rem; color: var(--muted); }
.xpost-foot a { display: inline-flex; align-items: center; gap: 0.35rem; text-decoration: none; }

/* ---------- About & contact ---------- */
.about-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.5rem clamp(2rem, 5vw, 4rem); padding-block: 1rem 4.5rem; }
.about-grid section { display: grid; gap: 1rem; align-content: start; padding-block-start: 1.25rem; border-block-start: 1px solid var(--line); }
.about-grid h2 { font-size: 1.25rem; }
.about-grid .hero-actions { margin: 0; }
.interest-list { display: flex; flex-wrap: wrap; gap: 0.5rem; list-style: none; padding: 0; margin: 0; }
.interest-list a { display: inline-block; padding: 0.35rem 0.85rem; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--text); text-decoration: none; font-size: 0.92rem; }
.interest-list a:hover { border-color: var(--accent); color: var(--accent); }
@media (max-width: 760px) { .about-grid { grid-template-columns: 1fr; } }

.contact-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: clamp(2rem, 6vw, 5rem); padding-block: 1rem 4.5rem; }
.contact-grid h2 { font-size: 1.25rem; margin-block-end: 1.25rem; }
.channels { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.75rem; }
.channel { display: flex; align-items: center; gap: 0.9rem; padding: 1rem 1.15rem; border: 1px solid var(--line); border-radius: var(--radius-l); background: var(--bg-raised); color: var(--text); text-decoration: none; }
.channel:hover { border-color: var(--accent); }
.channel > span { display: grid; gap: 0.15rem; }
.channel .muted { font-size: 0.9rem; }
.contact-form { display: grid; gap: 1.15rem; max-width: 36rem; }
.field { display: grid; gap: 0.4rem; }
.field label { font-weight: 500; font-size: 0.95rem; }
.req { color: var(--muted); font-weight: 400; font-size: 0.85rem; }
.field input, .field textarea { width: 100%; padding: 0.75rem 0.9rem; background: var(--bg-sunken); color: var(--text); border: 1px solid var(--line-strong); border-radius: var(--radius-m); font: inherit; }
.field textarea { resize: vertical; min-height: 9rem; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgb(116 199 236 / 0.2); }
.field [aria-invalid="true"] { border-color: var(--danger); }
[dir="rtl"] .field input[type="email"] { text-align: right; }
.field-error { color: var(--danger); font-size: 0.875rem; }
.form-status { padding: 0.85rem 1rem; border-radius: var(--radius-m); border: 1px solid var(--line-strong); border-inline-start-width: 3px; font-size: 0.95rem; }
.form-status[data-state="success"] { border-inline-start-color: var(--led-live); }
.form-status[data-state="error"], .form-status[data-state="unconfigured"] { border-inline-start-color: var(--danger); }
.contact-form .btn { justify-self: start; }
@media (max-width: 760px) { .contact-grid { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.site-footer { border-block-start: 1px solid var(--line); background: var(--bg-sunken); margin-block-start: 2rem; }
.footer-inner { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 2rem; padding-block: 3rem 2rem; }
.footer-brand p { color: var(--muted); margin-block-start: 0.75rem; max-width: 22rem; font-size: 0.95rem; }
.footer-title { font-size: 0.9rem; color: var(--muted); font-weight: 500; margin-block-end: 0.75rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.45rem; }
.site-footer ul a { color: var(--text); text-decoration: none; font-size: 0.95rem; }
.site-footer ul a:hover { color: var(--accent); }
.footer-base { padding-block: 1.25rem 2rem; border-block-start: 1px solid var(--line); color: var(--muted); font-size: 0.85rem; }
@media (max-width: 700px) { .footer-inner { grid-template-columns: 1fr 1fr; } .footer-brand { grid-column: 1 / -1; } }

/* ---------- 404 ---------- */
.nf { display: grid; gap: 2.5rem; padding-block: 3rem 5rem; }
.nf-block { display: grid; gap: 0.5rem; padding-block-start: 2rem; border-block-start: 1px solid var(--line); }
.nf-block .hero-actions { margin-block-start: 1rem; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-delay: 0s !important; transition: none !important; }
  .topology .core-pulse { display: none; }
}
@media (max-width: 480px) {
  .hero-actions .btn { flex: 1 1 100%; }
  .lang-switch { padding: 0.4rem 0.7rem; }
}

/* ---------- Personal identity: portrait at the core of the network ---------- */
.hero-visual-portrait { position: relative; }
.hero-visual-portrait .core, .hero-visual-portrait .core-inner { display: none; }
.hero-portrait {
  position: absolute; inset-inline-start: 50%; inset-block-start: 50%;
  width: 27%; height: auto; aspect-ratio: 1; transform: translate(-50%, -50%);
  border-radius: 50%; object-fit: cover;
  border: 3px solid var(--accent); box-shadow: 0 0 0 8px rgb(116 199 236 / 0.12), 0 0 0 1px var(--line-strong);
  background: var(--bg-raised);
  opacity: 0; animation: portrait-in 0.6s ease-out 1.1s forwards;
}
[dir="rtl"] .hero-portrait { transform: translate(50%, -50%); }
@keyframes portrait-in { from { opacity: 0; scale: 0.85; } to { opacity: 1; scale: 1; } }
.portrait-fallback { display: grid; place-items: center; color: var(--accent); font-weight: 600; font-size: clamp(1.75rem, 4vw, 3rem); background: var(--bg-raised); }
.hero-byline { margin-block-start: 0.35rem; color: var(--text); font-weight: 500; }

.about-teaser { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
.about-teaser h2 { margin-block-end: 0.75rem; }
.about-teaser .prose { color: var(--muted); }
.teaser-tags { margin-block: 1.25rem; }
.about-portrait { width: clamp(7rem, 16vw, 11rem); height: auto; aspect-ratio: 1; border-radius: 50%; object-fit: cover; border: 2px solid var(--line-strong); }
.teaser-portrait { width: clamp(11rem, 22vw, 16rem); aspect-ratio: 4 / 5; height: auto; object-fit: cover; border-radius: var(--radius-l); border: 1px solid var(--line-strong); background: #000; }
span.teaser-portrait { border-radius: 50%; aspect-ratio: 1; width: clamp(7rem, 16vw, 11rem); }
@media (max-width: 640px) { .about-teaser { grid-template-columns: 1fr; justify-items: start; } }

.about-head { display: flex; align-items: center; gap: clamp(1.25rem, 4vw, 2.5rem); flex-wrap: wrap; }
.about-head .about-portrait { border-color: var(--accent); }
.about-role { color: var(--accent); font-weight: 500; margin-block-start: 0.4rem; font-size: 1.1rem; }

.status-completed .led { background: var(--accent); }
.footer-owner { margin-block-start: 0.35rem !important; color: var(--text) !important; }
@media (prefers-reduced-motion: reduce) { .hero-portrait { opacity: 1; animation: none; } }
.tags li:lang(ar) { font-family: var(--font-arabic); font-size: 0.85rem; }
.project-cover img, .detail-cover img { width: 100%; height: 100%; object-fit: cover; background: var(--bg-sunken); }
.shot-real img { width: 100%; height: auto; border: 1px solid var(--line); border-radius: var(--radius-m); background: var(--bg-sunken); }
.shot-grid:has(.shot-real) { grid-template-columns: 1fr; max-width: 56rem; }
.detail-side p { color: var(--muted); font-size: 0.95rem; }