/* =========================================================
   Zelala Design Studio — ظلالة للتصميم الداخلي
   Stylesheet · v1.0
   Dark & Architectural · bilingual (AR/EN, RTL/LTR)
   ========================================================= */

/* --------- Tokens --------- */
:root{
  /* Palette */
  --bg: #141110;
  --bg-deep: #0D0B0A;
  --surface: #221C18;
  --surface-2: #2A241F;
  --stone: #BCA88E;
  --stone-dim: #7C6A52;
  --light: #F1ECE3;
  --muted: rgba(241,236,227,.62);
  --faint: rgba(241,236,227,.42);
  --accent: #C77B45;
  --accent-bright: #E8AE74;
  --accent-soft: rgba(199,123,69,.16);
  --hairline: rgba(241,236,227,.10);
  --hairline-strong: rgba(241,236,227,.18);
  --shadow-soft: 0 30px 60px -30px rgba(0,0,0,.7);
  --shadow-amber: 0 0 60px -10px rgba(232,174,116,.35);

  /* Typography */
  --fs-display-1: clamp(64px, 12vw, 200px);
  --fs-display-2: clamp(44px, 7vw, 96px);
  --fs-display-3: clamp(32px, 4.4vw, 64px);
  --fs-h: clamp(24px, 2.6vw, 36px);
  --fs-lead: clamp(18px, 1.5vw, 22px);
  --fs-body: 17px;
  --fs-small: 14px;
  --fs-eyebrow: 12px;

  /* Spacing & layout */
  --sp-section: clamp(96px, 14vw, 180px);
  --sp-gutter: clamp(24px, 5vw, 80px);
  --container: 1320px;
  --r-sm: 4px;
  --r-md: 10px;
  --r-lg: 20px;
  --r-pill: 999px;

  /* Z-index scale */
  --z-grain: 1;
  --z-content: 2;
  --z-fab: 38;
  --z-nav: 40;
  --z-overlay: 60;

  /* Motion */
  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);
  --t-fast: 180ms;
  --t: 280ms;
  --t-slow: 600ms;
}

/* Language-aware font stacks */
html[lang="ar"]{
  --font-body: 'IBM Plex Sans Arabic','Segoe UI', system-ui, sans-serif;
  --font-display: 'Aref Ruqaa', 'Amiri', 'IBM Plex Sans Arabic', serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --tracking-eyebrow: .14em;
}
html[lang="en"]{
  --font-body: 'Hanken Grotesk', system-ui, sans-serif;
  --font-display: 'Cormorant', Georgia, serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --tracking-eyebrow: .26em;
}

/* --------- Reset / base --------- */
*,*::before,*::after{ box-sizing: border-box; }
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top: 92px;
  background: var(--bg);
}
body{
  margin:0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--light);
  background: var(--bg);
  min-height: 100svh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img{ display:block; max-width:100%; height:auto; }
button{ font: inherit; color: inherit; background:none; border:0; cursor:pointer; }
a{ color: inherit; text-decoration: none; }
ul,ol{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0; font-weight: 500; line-height:1.08; letter-spacing:-.01em; font-family: var(--font-display); color: var(--light); }
p{ margin:0; }
hr{ border:0; border-block-start:1px solid var(--hairline); }
:focus-visible{
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
  border-radius: 4px;
}
::selection{ background: var(--accent); color: var(--bg-deep); }

/* --------- Layout primitives --------- */
.container{
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--sp-gutter);
}
section{
  padding-block: var(--sp-section);
  position: relative;
}
.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow::before{
  content:""; inline-size: 28px; block-size:1px; background: var(--accent);
}
.section-head{ margin-block-end: clamp(48px, 6vw, 88px); max-inline-size: 760px; }
.section-title{
  font-size: var(--fs-display-3);
  margin-block-start: 18px;
  letter-spacing: -.015em;
  font-weight: 500;
}
html[lang="ar"] .section-title{ font-weight: 700; }
.section-intro{
  margin-block-start: 24px;
  color: var(--muted);
  font-size: var(--fs-lead);
  max-inline-size: 620px;
  line-height: 1.7;
}

/* --------- Grain overlay (filmic dark texture) --------- */
.grain{
  position: fixed; inset: 0; pointer-events: none; z-index: var(--z-grain);
  opacity: .06; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-size: 240px 240px;
}

/* --------- Navigation --------- */
.nav{
  position: fixed; inset-block-start: 0; inset-inline: 0;
  z-index: var(--z-nav);
  padding: 18px var(--sp-gutter);
  display:flex; align-items:center; justify-content:space-between;
  transition: background var(--t) var(--ease), backdrop-filter var(--t) var(--ease), padding var(--t) var(--ease), border-color var(--t) var(--ease);
  border-block-end: 1px solid transparent;
}
.nav.is-scrolled{
  background: rgba(13,11,10,.72);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  border-block-end-color: var(--hairline);
  padding-block: 14px;
}
.nav__brand{
  display:flex; align-items:center;
  color: var(--light);
  line-height: 0;
}
.nav__logo{
  block-size: 52px; inline-size: auto;
  display: block;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,.45));
  transition: transform var(--t) var(--ease), filter var(--t) var(--ease), block-size var(--t) var(--ease);
}
.nav.is-scrolled .nav__logo{ block-size: 44px; }
.nav__brand:hover .nav__logo{
  transform: scale(1.03);
  filter: drop-shadow(0 6px 18px rgba(232,174,116,.35));
}
@media (max-width: 600px){
  .nav__logo{ block-size: 42px; }
  .nav.is-scrolled .nav__logo{ block-size: 38px; }
}

/* Accessible visually-hidden utility for SR-only text */
.visually-hidden{
  position: absolute !important;
  inline-size: 1px !important; block-size: 1px !important;
  padding: 0 !important; margin: -1px !important;
  overflow: hidden !important; clip: rect(0,0,0,0) !important;
  white-space: nowrap !important; border: 0 !important;
}
.nav__links{
  display:flex; gap: clamp(20px, 3vw, 40px);
  font-family: var(--font-body); font-size: 14px;
  color: var(--muted);
}
.nav__links a{
  position: relative; padding-block: 6px;
  transition: color var(--t-fast) var(--ease);
}
.nav__links a:hover{ color: var(--light); }
.nav__links a::after{
  content:""; position:absolute; inset-inline-start:0; inset-block-end:0;
  inline-size:0; block-size:1px; background: var(--accent);
  transition: inline-size var(--t) var(--ease);
}
.nav__links a:hover::after{ inline-size: 100%; }
.nav__right{ display:flex; align-items:center; gap: 18px; }
.lang-toggle{
  display:inline-flex; align-items:center; gap: 4px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em;
  color: var(--muted);
  padding: 8px 14px; border-radius: var(--r-pill);
  border: 1px solid var(--hairline-strong);
  transition: border-color var(--t) var(--ease), color var(--t) var(--ease), background var(--t) var(--ease);
}
.lang-toggle:hover{ border-color: var(--accent); color: var(--light); background: var(--accent-soft); }
.lang-toggle .sep{ opacity:.45; margin-inline: 4px; }
.lang-toggle .is-active{ color: var(--accent-bright); }
.nav__menu-btn{
  display:none;
  inline-size: 42px; block-size: 42px;
  border:1px solid var(--hairline-strong); border-radius: var(--r-pill);
  align-items:center; justify-content:center;
  color: var(--light);
  transition: border-color var(--t) var(--ease);
}
.nav__menu-btn:hover{ border-color: var(--accent); }
.nav__menu-btn svg{ inline-size: 18px; block-size: 18px; }

/* mobile menu overlay */
.menu-overlay{
  position: fixed; inset: 0; z-index: calc(var(--z-nav) + 1);
  background: rgba(11,9,8,.96);
  backdrop-filter: blur(20px);
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap: 28px;
  opacity: 0; pointer-events:none;
  transition: opacity var(--t) var(--ease);
}
.menu-overlay.is-open{ opacity:1; pointer-events:auto; }
.menu-overlay a{
  font-family: var(--font-display);
  font-size: clamp(32px, 6vw, 56px);
  color: var(--light);
}
html[lang="en"] .menu-overlay a{ font-style: italic; }
.menu-overlay .close{
  position: absolute; inset-block-start: 22px; inset-inline-end: 24px;
  inline-size: 44px; block-size:44px; border:1px solid var(--hairline-strong); border-radius:var(--r-pill);
  display:flex; align-items:center; justify-content:center;
}

/* --------- Hero --------- */
.hero{
  min-block-size: 100svh;
  position: relative;
  display:flex; flex-direction:column; justify-content:center; align-items:center;
  text-align: center;
  padding-block: 140px 80px;
  overflow: hidden;
  isolation: isolate;
}
.hero::before{
  content:""; position:absolute; inset:-10%;
  background: radial-gradient(circle at var(--mx,50%) var(--my,38%),
    rgba(232,174,116,.30) 0%,
    rgba(199,123,69,.10) 22%,
    rgba(199,123,69,0) 55%);
  z-index: -1;
  transition: background var(--t-slow) var(--ease);
}
.hero::after{
  content:""; position:absolute; inset:0;
  background: radial-gradient(ellipse at 50% 100%, rgba(0,0,0,.6) 0%, transparent 65%),
              linear-gradient(180deg, rgba(20,17,16,.0) 0%, rgba(20,17,16,.8) 100%);
  z-index:-1; pointer-events:none;
}
.hero__content{ position: relative; z-index: 2; max-inline-size: 1100px; padding-inline: var(--sp-gutter); }
.hero__eyebrow{
  font-family: var(--font-mono); font-size: var(--fs-eyebrow);
  color: var(--accent); letter-spacing: var(--tracking-eyebrow); text-transform: uppercase;
  margin-block-end: 28px; opacity: 0; transform: translateY(12px);
  animation: rise 900ms var(--ease-out) .15s forwards;
}
.hero__mark{
  position: relative;
  display:flex; flex-direction: column; align-items:center; gap: 10px;
  opacity:0; transform: translateY(20px);
  animation: rise 1200ms var(--ease-out) .25s forwards;
  margin: 0;
}
.hero__logo{
  inline-size: clamp(280px, 38vw, 540px);
  block-size: auto;
  display: block;
  margin-inline: auto;
  filter:
    drop-shadow(0 18px 60px rgba(232,174,116,.30))
    drop-shadow(0 8px 22px rgba(0,0,0,.55));
}
.hero__sub{
  margin-block-start: 28px;
  font-family: var(--font-mono);
  font-size: 13px; letter-spacing: .26em; text-transform: uppercase;
  color: var(--stone);
  opacity:0; transform: translateY(10px);
  animation: rise 1100ms var(--ease-out) .55s forwards;
}
.hero__tagline{
  margin-block-start: 36px;
  max-inline-size: 640px; margin-inline: auto;
  font-family: var(--font-display);
  font-size: var(--fs-lead); line-height: 1.5;
  color: var(--light); opacity:.94;
  opacity: 0; transform: translateY(10px);
  animation: rise 1100ms var(--ease-out) .75s forwards;
}
html[lang="en"] .hero__tagline{ font-style: italic; }
html[lang="ar"] .hero__tagline{ font-family: var(--font-body); }
.hero__cue{
  position: absolute; inset-block-end: 38px; inset-inline-start: 50%;
  transform: translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap: 12px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .3em; text-transform: uppercase;
  color: var(--faint);
  opacity:0; animation: fadeIn 900ms var(--ease-out) 1.15s forwards;
}
.hero__cue::after{
  content:""; inline-size:1px; block-size: 60px;
  background: linear-gradient(180deg, var(--stone) 0%, transparent 100%);
  animation: cueLine 1800ms var(--ease) infinite;
}
@keyframes cueLine{
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}
@keyframes rise{ to { opacity:1; transform: translateY(0); } }
@keyframes fadeIn{ to { opacity:1; } }

/* --------- About / Philosophy --------- */
.about{ background: var(--bg); }
.about__grid{
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: start;
}
.about__text .lead{
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 52px);
  line-height: 1.25;
  color: var(--light);
  margin-block-end: 32px;
  letter-spacing: -.01em;
}
html[lang="en"] .about__text .lead{ font-weight: 400; }
.about__text p{
  color: var(--muted); font-size: var(--fs-lead); line-height: 1.75;
  margin-block-end: 18px;
  max-inline-size: 56ch;
}
.principles{
  margin-block-start: 56px;
  display: grid; gap: 28px;
}
.principle{
  display:grid; grid-template-columns: 64px 1fr; align-items:start; gap: 18px;
  border-block-start: 1px solid var(--hairline);
  padding-block-start: 24px;
}
.principle__num{
  font-family: var(--font-mono); font-size: 11px; letter-spacing:.18em;
  color: var(--accent); padding-block-start: 6px;
}
.principle h3{
  font-size: 22px; margin-block-end: 8px; font-weight: 500;
}
html[lang="ar"] .principle h3{ font-weight: 700; }
.principle p{ color: var(--muted); font-size: 15px; line-height:1.7; }

.about__media{
  position: relative;
  border-radius: var(--r-md);
  overflow:hidden;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--hairline);
}
.about__media img{ inline-size: 100%; block-size: auto; aspect-ratio: 9 / 13; object-fit: cover; }
.about__media::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background: linear-gradient(180deg, transparent 60%, rgba(11,9,8,.55) 100%);
}

.stats{
  margin-block-start: 88px;
  display:grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  border-block-start: 1px solid var(--hairline);
  padding-block-start: 32px;
}
.stat{ display:flex; flex-direction:column; gap: 8px; }
.stat__num{
  font-family: var(--font-display); font-size: clamp(36px, 4.5vw, 64px); line-height: 1;
  color: var(--light); letter-spacing: -.01em;
}
html[lang="en"] .stat__num{ font-style: italic; font-weight: 400; }
.stat__label{
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted);
}

/* --------- Projects --------- */
.projects{ background: var(--bg-deep); position:relative; }
.projects::before{
  content:""; position:absolute; inset-block-start:0; inset-inline:0; block-size: 1px; background: var(--hairline);
}
.filters{
  display:flex; flex-wrap:wrap; gap: 10px;
  margin-block-end: 40px;
}
.filter-chip{
  font-family: var(--font-mono); font-size: 12px; letter-spacing:.12em; text-transform: uppercase;
  padding: 10px 18px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-pill);
  color: var(--muted);
  transition: border-color var(--t) var(--ease), color var(--t) var(--ease), background var(--t) var(--ease);
}
.filter-chip:hover{ border-color: var(--stone); color: var(--light); }
.filter-chip.is-active{
  border-color: var(--accent);
  color: var(--accent-bright);
  background: var(--accent-soft);
}
.projects-grid{
  column-count: 3; column-gap: 24px;
}
@media (max-width: 1024px){ .projects-grid{ column-count: 2; } }
@media (max-width: 640px){  .projects-grid{ column-count: 1; } }
.project-card{
  break-inside: avoid;
  display:block;
  margin-block-end: 24px;
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--hairline);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease);
}
.project-card:hover{ border-color: var(--accent); }
.project-card__media{
  position: relative; overflow:hidden; isolation: isolate; background: var(--bg);
}
.project-card__media img{
  inline-size: 100%; block-size: auto; display:block;
  transition: transform 700ms var(--ease), filter 700ms var(--ease);
  filter: brightness(.86) contrast(1.02);
}
.project-card:hover .project-card__media img{
  transform: scale(1.04);
  filter: brightness(1) contrast(1.04);
}
.project-card__media::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background: linear-gradient(180deg, transparent 45%, rgba(11,9,8,.85) 100%);
  z-index: 1;
}
.project-card__meta{
  position: absolute; inset-inline: 22px; inset-block-end: 20px; z-index: 2;
  display:flex; flex-direction:column; gap: 6px;
  color: var(--light);
}
.project-card__title{
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.2;
  letter-spacing: -.005em;
}
html[lang="en"] .project-card__title{ font-style: italic; font-weight: 500; }
html[lang="ar"] .project-card__title{ font-weight: 700; }
.project-card__sub{
  font-family: var(--font-mono); font-size: 11px; letter-spacing:.14em;
  text-transform: uppercase; color: var(--stone);
  display:flex; gap: 12px;
}
.project-card__sub span + span::before{ content:"·"; margin-inline-end: 12px; color: var(--accent); }
.project-card__chev{
  position: absolute; inset-block-start: 18px; inset-inline-end: 18px; z-index: 2;
  inline-size: 38px; block-size: 38px; border-radius: var(--r-pill);
  border: 1px solid rgba(241,236,227,.25);
  display:flex; align-items:center; justify-content:center;
  color: var(--light);
  background: rgba(13,11,10,.4);
  backdrop-filter: blur(4px);
  opacity:0; transform: translateY(-4px);
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease), border-color var(--t) var(--ease), background var(--t) var(--ease);
}
.project-card:hover .project-card__chev{ opacity:1; transform: translateY(0); border-color: var(--accent); background: var(--accent-soft); }
html[dir="rtl"] .project-card__chev svg{ transform: scaleX(-1); }

/* --------- Services --------- */
.services{ background: var(--bg); }
.services-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  overflow:hidden;
}
@media (max-width: 900px){ .services-grid{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px){ .services-grid{ grid-template-columns: 1fr; } }
.service{
  background: var(--bg);
  padding: 36px 30px 40px;
  display:flex; flex-direction:column; gap: 14px;
  transition: background var(--t) var(--ease), transform var(--t) var(--ease);
}
.service:hover{ background: var(--surface); }
.service__num{
  font-family: var(--font-mono); font-size: 11px; letter-spacing:.18em;
  color: var(--accent);
}
.service__icon{
  inline-size: 36px; block-size: 36px; color: var(--stone);
  transition: color var(--t) var(--ease);
}
.service:hover .service__icon{ color: var(--accent-bright); }
.service h3{
  font-size: clamp(22px, 2vw, 28px);
  font-weight: 500;
  margin-block-start: 4px;
}
html[lang="ar"] .service h3{ font-weight: 700; }
.service p{ color: var(--muted); font-size: 15px; line-height: 1.7; }

/* --------- Process --------- */
.process{ background: var(--bg); padding-block-start: 0; }
.process-strip{
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  border: 1px solid var(--hairline); border-radius: var(--r-md);
  overflow: hidden;
}
@media (max-width: 900px){ .process-strip{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 520px){ .process-strip{ grid-template-columns: 1fr; } }
.process-step{
  padding: 32px 28px;
  border-inline-end: 1px solid var(--hairline);
  display:flex; flex-direction:column; gap: 14px;
  background: var(--bg-deep);
  position: relative;
}
.process-step:last-child{ border-inline-end: 0; }
@media (max-width: 900px){
  .process-step{ border-inline-end: 0; border-block-end: 1px solid var(--hairline); }
  .process-step:nth-child(2n){ border-inline-end: 0; }
}
.process-step__num{
  font-family: var(--font-display);
  font-size: 44px; line-height: 1;
  color: var(--accent);
}
html[lang="en"] .process-step__num{ font-style: italic; }
.process-step h4{
  font-size: 20px; margin: 0; font-weight: 500;
}
html[lang="ar"] .process-step h4{ font-weight: 700; }
.process-step p{ color: var(--muted); font-size: 14px; line-height:1.6; }

/* --------- Testimonial / Recognition --------- */
.testimonial{
  background: var(--bg-deep);
  padding-block: clamp(80px, 12vw, 140px);
  text-align: center;
}
.testimonial blockquote{
  margin:0 auto; max-inline-size: 920px;
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 48px);
  line-height: 1.35;
  color: var(--light);
  letter-spacing: -.005em;
  position: relative;
}
html[lang="en"] .testimonial blockquote{ font-style: italic; }
.testimonial blockquote::before{
  content:"“"; position: absolute; inset-block-start: -50px; inset-inline-start: 50%;
  transform: translateX(-50%);
  font-family: 'Cormorant', Georgia, serif; font-style: italic;
  font-size: 120px; line-height:1; color: var(--accent); opacity:.6;
}
html[lang="ar"] .testimonial blockquote::before{ content:"“"; }
.testimonial cite{
  display:block; margin-block-start: 32px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing:.22em; text-transform: uppercase;
  color: var(--stone); font-style: normal;
}

/* --------- Contact --------- */
.contact{ background: var(--bg); }
.contact__head{ text-align: start; }
.contact__head .invite{
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 76px);
  line-height: 1.1;
  letter-spacing: -.015em;
  max-inline-size: 18ch;
  color: var(--light);
}
html[lang="en"] .contact__head .invite{ font-style: italic; font-weight: 400; }
.contact__grid{
  margin-block-start: 64px;
  display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(40px, 6vw, 96px);
}
@media (max-width: 900px){ .contact__grid{ grid-template-columns: 1fr; } }
.contact__details{
  display: grid; gap: 28px;
}
.contact-row{
  display:grid; grid-template-columns: 100px 1fr; gap: 16px;
  border-block-start: 1px solid var(--hairline);
  padding-block-start: 18px;
}
.contact-row dt{
  font-family: var(--font-mono); font-size: 11px; letter-spacing:.18em; text-transform: uppercase;
  color: var(--accent); padding-block-start: 4px;
}
.contact-row dd{
  margin:0; font-size: 17px; color: var(--light);
}
.contact-row dd a{ border-block-end: 1px solid transparent; transition: border-color var(--t) var(--ease); }
.contact-row dd a:hover{ border-block-end-color: var(--accent); }
.social-row{ display:flex; gap: 14px; margin-block-start: 16px; }
.social-row a{
  inline-size: 42px; block-size: 42px; border-radius: var(--r-pill);
  border: 1px solid var(--hairline-strong);
  display:flex; align-items:center; justify-content:center;
  color: var(--stone);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease), background var(--t) var(--ease);
}
.social-row a:hover{ color: var(--accent-bright); border-color: var(--accent); background: var(--accent-soft); }
.social-row svg{ inline-size: 18px; block-size: 18px; }

/* Form */
.form{ display:grid; gap: 22px; }
.field{ display:flex; flex-direction:column; gap: 8px; }
.field label{
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted);
}
.field input, .field textarea{
  font: inherit; font-size: 16px;
  color: var(--light);
  background: transparent;
  border: 0; border-block-end: 1px solid var(--hairline-strong);
  padding: 12px 0;
  transition: border-color var(--t) var(--ease);
  width: 100%;
}
.field textarea{ resize: vertical; min-block-size: 120px; }
.field input:focus, .field textarea:focus{ border-block-end-color: var(--accent); outline: none; }
.field input::placeholder, .field textarea::placeholder{ color: var(--faint); }
.btn{
  display:inline-flex; align-items:center; gap: 12px;
  font-family: var(--font-mono); font-size: 13px; letter-spacing: .2em; text-transform: uppercase;
  padding: 16px 28px;
  border-radius: var(--r-pill);
  background: var(--accent);
  color: var(--bg-deep);
  border: 1px solid var(--accent);
  transition: background var(--t) var(--ease), color var(--t) var(--ease), transform var(--t) var(--ease);
  cursor: pointer;
}
.btn:hover{ background: var(--accent-bright); border-color: var(--accent-bright); }
.btn--ghost{
  background: transparent; color: var(--light); border-color: var(--hairline-strong);
}
.btn--ghost:hover{ border-color: var(--accent); color: var(--accent-bright); background: var(--accent-soft); }
.btn svg{ inline-size: 14px; block-size: 14px; }
html[dir="rtl"] .btn svg{ transform: scaleX(-1); }

/* --------- Footer --------- */
.footer{
  background: var(--bg-deep);
  padding-block: 80px 32px;
  border-block-start: 1px solid var(--hairline);
}
.footer__grid{
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
}
@media (max-width: 820px){ .footer__grid{ grid-template-columns: 1fr 1fr; } }
.footer__brand{
  display: flex; flex-direction: column; align-items: flex-start;
  color: var(--light);
}
.footer__logo{
  inline-size: clamp(220px, 22vw, 360px);
  block-size: auto;
  display: block;
  margin-block-end: 18px;
  filter: drop-shadow(0 8px 22px rgba(0,0,0,.5));
}
.footer__brand small{
  display:block; font-family: var(--font-mono); font-size: 11px; letter-spacing:.22em;
  text-transform: uppercase; color: var(--stone); opacity:1;
  font-style: normal;
}
.footer__col h5{
  font-family: var(--font-mono); font-size: 11px; letter-spacing:.22em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 18px;
}
.footer__col ul{ display:grid; gap: 10px; }
.footer__col a{ color: var(--muted); font-size: 14px; transition: color var(--t) var(--ease); }
.footer__col a:hover{ color: var(--light); }
.footer__bottom{
  margin-block-start: 48px; padding-block-start: 24px;
  border-block-start: 1px solid var(--hairline);
  display:flex; justify-content:space-between; align-items:center; gap: 16px;
  flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 11px; letter-spacing:.16em; color: var(--faint);
}
.back-to-top{
  display:inline-flex; align-items:center; gap: 10px;
  padding: 8px 14px; border:1px solid var(--hairline-strong); border-radius: var(--r-pill);
  color: var(--stone);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}
.back-to-top:hover{ color: var(--accent-bright); border-color: var(--accent); }

/* --------- Floating WhatsApp button (brand green) --------- */
.fab-wa{
  position: fixed; bottom: 24px; right: 24px;
  inline-size: 60px; block-size: 60px;
  border-radius: var(--r-pill);
  background: #25D366;
  border: 0;
  color: #fff;
  display:flex; align-items:center; justify-content:center;
  z-index: var(--z-fab);
  box-shadow: 0 14px 32px -10px rgba(37,211,102,.55),
              0 22px 40px -16px rgba(0,0,0,.55);
  transition: box-shadow var(--t) var(--ease), background var(--t) var(--ease), transform var(--t) var(--ease);
  opacity: 0; transform: translateY(8px) scale(.92);
  animation: fabIn 800ms var(--ease-out) 1.6s forwards;
}
@keyframes fabIn{ to { opacity:1; transform: translateY(0) scale(1); } }
@keyframes fabPulse{
  0%   { box-shadow: 0 14px 32px -10px rgba(37,211,102,.55), 0 22px 40px -16px rgba(0,0,0,.55), 0 0 0 0 rgba(37,211,102,.55); }
  70%  { box-shadow: 0 14px 32px -10px rgba(37,211,102,.55), 0 22px 40px -16px rgba(0,0,0,.55), 0 0 0 18px rgba(37,211,102,0); }
  100% { box-shadow: 0 14px 32px -10px rgba(37,211,102,.55), 0 22px 40px -16px rgba(0,0,0,.55), 0 0 0 0 rgba(37,211,102,0); }
}
.fab-wa{ animation: fabIn 800ms var(--ease-out) 1.6s forwards, fabPulse 2.6s ease-out 2.6s infinite; }
.fab-wa:hover{
  background: #1FAE4E;
  transform: translateY(-2px);
  box-shadow: 0 18px 36px -10px rgba(37,211,102,.65),
              0 24px 48px -16px rgba(0,0,0,.6);
}
.fab-wa svg{ inline-size: 30px; block-size: 30px; color: #fff; }
.fab-wa:hover svg{ color: #fff; }
.fab-wa__tip{
  position: absolute; inset-block-end: 50%; inset-inline-end: calc(100% + 14px);
  transform: translateY(50%) translateX(8px);
  background: #25D366; color: #fff;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  padding: 10px 14px; border-radius: var(--r-pill);
  white-space: nowrap;
  box-shadow: 0 12px 24px -10px rgba(0,0,0,.5);
  opacity:0; pointer-events:none;
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease);
}
.fab-wa:hover .fab-wa__tip{ opacity:1; transform: translateY(50%) translateX(0); }
html[dir="rtl"] .fab-wa__tip{ transform: translateY(50%) translateX(-8px); }
html[dir="rtl"] .fab-wa:hover .fab-wa__tip{ transform: translateY(50%) translateX(0); }
@media (prefers-reduced-motion: reduce){
  .fab-wa{ animation: fabIn 1ms linear forwards !important; }
}

/* --------- Case-study overlay --------- */
.case{
  position: fixed; inset: 0; z-index: var(--z-overlay);
  background: var(--bg-deep);
  opacity: 0; visibility: hidden;
  transition: opacity var(--t-slow) var(--ease), visibility 0s linear var(--t-slow);
  overflow-y: auto; overflow-x: hidden;
}
.case.is-open{
  opacity: 1; visibility: visible;
  transition: opacity var(--t-slow) var(--ease), visibility 0s;
}
body.no-scroll{ overflow: hidden; }
.case__close{
  position: fixed; inset-block-start: 22px; inset-inline-end: 24px;
  inline-size: 48px; block-size: 48px; border-radius: var(--r-pill);
  border: 1px solid var(--hairline-strong);
  background: rgba(13,11,10,.7); backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display:flex; align-items:center; justify-content:center;
  color: var(--light); z-index: 5;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}
.case__close:hover{ border-color: var(--accent); background: var(--accent-soft); }
.case__close svg{ inline-size: 18px; block-size: 18px; }

.case__hero{
  position: relative;
  block-size: clamp(60vh, 80vh, 92vh);
  inline-size: 100%;
  overflow:hidden;
  background: var(--bg);
}
.case__hero img{
  inline-size: 100%; block-size: 100%; object-fit: cover;
  filter: brightness(.78);
}
.case__hero::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background: linear-gradient(180deg, rgba(11,9,8,.3) 0%, transparent 35%, rgba(11,9,8,.95) 100%);
}
.case__hero-title{
  position: absolute; inset-inline-start: var(--sp-gutter); inset-block-end: 40px;
  inline-size: min(900px, calc(100% - 2*var(--sp-gutter)));
  z-index: 2;
}
.case__hero-eyebrow{
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent); margin-block-end: 18px;
}
.case__hero-title h2{
  font-family: var(--font-display);
  font-size: clamp(36px, 5.5vw, 80px); line-height: 1.05;
  color: var(--light); letter-spacing: -.015em;
}
html[lang="en"] .case__hero-title h2{ font-style: italic; font-weight: 500; }
html[lang="ar"] .case__hero-title h2{ font-weight: 700; }

.case__body{
  max-inline-size: 1100px;
  margin-inline: auto;
  padding: clamp(48px, 6vw, 96px) var(--sp-gutter);
  display: grid; gap: clamp(40px, 5vw, 72px);
}
.case__meta{
  display:grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  border-block: 1px solid var(--hairline);
  padding-block: 28px;
}
@media (max-width: 720px){ .case__meta{ grid-template-columns: repeat(2, 1fr); } }
.case__meta dt{
  font-family: var(--font-mono); font-size: 10px; letter-spacing:.2em; text-transform: uppercase;
  color: var(--accent); margin-block-end: 8px;
}
.case__meta dd{ margin:0; color: var(--light); font-size: 16px; }
.case__section h3{
  font-family: var(--font-mono); font-size: 12px; letter-spacing:.22em; text-transform: uppercase;
  color: var(--accent); margin-block-end: 18px;
}
.case__section p{
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 30px); line-height: 1.45;
  color: var(--light);
  max-inline-size: 60ch;
  letter-spacing: -.005em;
}
html[lang="ar"] .case__section p{ font-family: var(--font-body); line-height: 1.85; font-size: clamp(17px,1.7vw,20px); color: var(--light); }
.case__concept p + p{ margin-block-start: 18px; }
html[lang="en"] .case__section p{ font-weight: 400; }
.case__materials{
  display: flex; flex-wrap: wrap; gap: 10px;
}
.case__materials span{
  font-family: var(--font-mono); font-size: 12px; letter-spacing:.12em;
  padding: 8px 14px; border: 1px solid var(--hairline-strong); border-radius: var(--r-pill);
  color: var(--light);
}
.case__gallery{
  display:grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
}
@media (max-width: 680px){ .case__gallery{ grid-template-columns: 1fr; } }
.case__gallery img{
  inline-size: 100%; border-radius: var(--r-md); border: 1px solid var(--hairline);
}
.case__nav{
  display:flex; justify-content: space-between; align-items:center;
  border-block-start: 1px solid var(--hairline);
  padding-block-start: 28px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--stone);
}
.case__nav a{ color: var(--light); transition: color var(--t) var(--ease); }
.case__nav a:hover{ color: var(--accent-bright); }
.case__nav a small{ display:block; color: var(--stone); font-size: 10px; letter-spacing: .18em; margin-block-end: 4px; }
.case__empty{
  padding: 32px;
  border: 1px dashed var(--hairline-strong); border-radius: var(--r-md);
  text-align: center; color: var(--muted); font-size: 14px;
  font-family: var(--font-mono); letter-spacing: .08em;
}

/* --------- Reveal animations --------- */
.reveal{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 900ms var(--ease-out), transform 900ms var(--ease-out);
  transition-delay: calc(var(--i, 0) * 80ms);
}
.reveal.is-visible{ opacity: 1; transform: translateY(0); }

/* --------- Lang transition --------- */
.lang-switching{
  opacity: .35;
  transition: opacity var(--t-fast) var(--ease);
}

/* --------- Responsive tweaks --------- */
@media (max-width: 1024px){
  .nav__links{ display: none; }
  .nav__menu-btn{ display: inline-flex; }
  .about__grid{ grid-template-columns: 1fr; }
  .about__media{ max-inline-size: 520px; margin-inline: auto; }
  .stats{ grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 600px){
  :root{ --sp-gutter: 22px; }
  .hero{ padding-block: 120px 60px; }
  .nav{ padding-inline: 22px; }
  .contact__details .contact-row{ grid-template-columns: 80px 1fr; gap: 12px; }
  .fab-wa{ inline-size: 56px; block-size:56px; bottom: 18px; right: 18px; }
  .case__close{ inset-block-start: 18px; inset-inline-end: 18px; inline-size: 44px; block-size: 44px; }
  .case__meta{ grid-template-columns: 1fr 1fr; }
  .filters{ overflow-x: auto; flex-wrap: nowrap; padding-block-end: 4px; }
  .filter-chip{ flex-shrink: 0; }
}

/* --------- Reduced motion --------- */
@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
  .hero::before{
    background: radial-gradient(circle at 50% 38%, rgba(232,174,116,.30) 0%, rgba(199,123,69,.10) 22%, transparent 55%);
  }
  .hero__cue::after{ animation: none; opacity:.5; }
  .reveal{ opacity:1; transform:none; }
}