/* ===== Tokens ===== */
:root {
  --bg: #070B0E; --bg2: #0D1519; --fg: #E8F4F6; --dim: #78939B;
  --teal: #0B5965; --accent: #00D4E8; --ice: #B9DCE5;
  --border: rgba(185,220,229,.1); --card: rgba(13,21,25,.75);
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --sans: 'Inter', system-ui, sans-serif; --r: 12px;
}
[data-theme="light"] {
  --bg: #EEF5F7; --bg2: #E1EDF0; --fg: #070B0E; --dim: #4A646C;
  --accent: #0B7F8C; --ice: #0B5965;
  --border: rgba(7,11,14,.12); --card: rgba(255,255,255,.85);
}

/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body { background: var(--bg); color: var(--fg); font: 400 1rem/1.6 var(--sans); overflow-x: hidden; }
body::before { /* one cheap fixed background instead of animated blurred blobs */
  content: ''; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(60% 40% at 10% 0, rgba(11,89,101,.35), transparent),
    radial-gradient(50% 40% at 95% 65%, rgba(0,212,232,.07), transparent);
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; }
ul { list-style: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.wrap { max-width: 1000px; margin: 0 auto; padding: 0 1.25rem; }
.skip { position: absolute; left: 1rem; top: -4rem; background: var(--teal); padding: .5rem 1rem; border-radius: 6px; z-index: 99; }
.skip:focus { top: 1rem; }

/* ===== Loader (pure CSS, never gets stuck) ===== */
#loader { position: fixed; inset: 0; z-index: 90; background: var(--bg); display: grid; place-content: center; gap: 1.2rem; justify-items: center; animation: hide .5s ease 1.2s forwards; }
#loader b { font: 700 1.8rem var(--mono); letter-spacing: .35em; }
#loader span { color: var(--accent); }
#loader i { width: 220px; height: 2px; background: var(--border); overflow: hidden; }
#loader i::after { content: ''; display: block; height: 100%; background: linear-gradient(90deg, var(--teal), var(--accent)); animation: fill 1.1s ease forwards; }
@keyframes fill { from { width: 0; } to { width: 100%; } }
@keyframes hide { to { opacity: 0; visibility: hidden; } }

/* ===== Nav ===== */
nav { position: fixed; inset: 0 0 auto; z-index: 50; background: rgba(7,11,14,.85); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
[data-theme="light"] nav { background: rgba(238,245,247,.88); }
.nav-in { max-width: 1000px; margin: 0 auto; padding: .9rem 1.25rem; display: flex; align-items: center; gap: 1rem; }
.logo { font: 700 .95rem var(--mono); letter-spacing: .2em; margin-right: auto; }
.links { display: none; gap: .3rem; }
.links a { font: .65rem var(--mono); letter-spacing: .12em; color: var(--dim); padding: .4rem .8rem; border-radius: 20px; transition: .2s; }
.links a:hover { color: var(--fg); background: var(--border); }
@media (min-width: 800px) { .links { display: flex; } }
.icon-btn { width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--border); background: var(--card); }
.icon-btn:hover { border-color: var(--accent); }

/* ===== Buttons ===== */
.btn { display: inline-flex; align-items: center; gap: .5rem; font: 700 .75rem var(--mono); letter-spacing: .12em; padding: .8rem 1.5rem; border-radius: 8px; border: 1px solid var(--teal); background: var(--teal); color: #E8F4F6; transition: transform .15s, border-color .2s; }
.btn:hover { transform: translateY(-2px); border-color: var(--accent); }
.btn.ghost { background: transparent; color: var(--accent); border-color: var(--border); }
.btn.sm { padding: .5rem 1rem; font-size: .68rem; }

/* ===== Hero ===== */
.hero { min-height: 100svh; display: grid; gap: 2rem; align-content: center; padding-top: 6.5rem; padding-bottom: 3rem; }
.avatar { order: -1; width: 170px; aspect-ratio: 1; border-radius: 50%; padding: 3px; background: conic-gradient(var(--teal), var(--accent), var(--ice), var(--teal)); box-shadow: 0 0 50px rgba(11,89,101,.5); }
.avatar img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; image-rendering: pixelated; }
.tag-line { display: flex; align-items: center; gap: .7rem; font: .65rem var(--mono); letter-spacing: .22em; color: var(--ice); }
.tag-line::before { content: ''; width: 30px; height: 1px; background: var(--accent); }
.name { font-size: clamp(3.4rem, 15vw, 6.5rem); font-weight: 900; line-height: .95; letter-spacing: -.03em; margin: 1rem 0; }
.name span, .name em { display: block; }
.name em { font-style: normal; background: linear-gradient(135deg, var(--ice), var(--accent)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.role { font: 1.05rem var(--mono); color: var(--accent); min-height: 1.7em; }
.role::after { content: ''; display: inline-block; width: 2px; height: 1em; margin-left: 2px; background: var(--accent); vertical-align: middle; animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }
.lead { color: var(--dim); max-width: 32rem; margin: 1.2rem 0 1.8rem; }
.row { display: flex; flex-wrap: wrap; gap: .8rem; }
.stats { display: flex; flex-wrap: wrap; gap: 1.5rem 2.5rem; margin-top: 2.2rem; }
.stats b { display: block; font-size: 2rem; font-weight: 900; color: var(--accent); line-height: 1.1; }
.stats span { font: .58rem var(--mono); letter-spacing: .2em; color: var(--dim); }
@media (min-width: 800px) { .hero { grid-template-columns: 1fr auto; align-items: center; } .avatar { order: 0; width: 250px; } .ticker { grid-column: 1 / -1; } }

/* Hero entrance: time-based CSS animation, can never leave content hidden */
[data-rise] { animation: rise .7s ease both; animation-delay: calc(var(--i, 0) * .1s + .9s); }
@keyframes rise { from { opacity: 0; transform: translateY(22px); } }

.ticker { overflow: hidden; border-block: 1px solid var(--border); padding: .8rem 0; margin-top: 2rem; }
.ticker ul { display: flex; gap: 2rem; width: max-content; animation: scroll 24s linear infinite; }
.ticker li { font: .68rem var(--mono); letter-spacing: .2em; color: var(--dim); white-space: nowrap; }
.ticker li::after { content: '◆'; margin-left: 2rem; color: var(--teal); }
@keyframes scroll { to { transform: translateX(-50%); } }

/* ===== Sections ===== */
.label { padding-top: 5rem; margin-bottom: 1.5rem; font: 400 .75rem var(--mono); letter-spacing: .2em; color: var(--dim); }
.label b { color: var(--accent); font-weight: 400; margin-right: .5rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--r); transition: border-color .25s, transform .25s; }
.card:hover { border-color: var(--teal); }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); }
.reveal { opacity: 1; }
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.in { opacity: 1; transform: none; }

/* About */
.about-title { font-size: clamp(1.7rem, 5vw, 2.8rem); font-weight: 900; line-height: 1.2; max-width: 700px; }
.about-title span { color: var(--accent); }
.about-text { color: var(--dim); max-width: 620px; margin: 1.2rem 0 2rem; }
.edu { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.2rem 1.5rem; border-left: 3px solid var(--teal); }
.edu small { display: block; color: var(--dim); }
.badge { font: .7rem var(--mono); color: var(--ice); border: 1px solid var(--teal); border-radius: 20px; padding: .3rem .9rem; white-space: nowrap; }

/* Projects (native <details>, no JS) */
.project { margin-bottom: 1rem; overflow: hidden; }
.project summary { display: flex; align-items: center; gap: .8rem; padding: 1.4rem 1.6rem; cursor: pointer; list-style: none; }
.project summary::-webkit-details-marker { display: none; }
.project summary::after { content: ''; margin-left: auto; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); transition: transform .3s; }
.project[open] summary::after { transform: scale(1.5); }
.num { font: .65rem var(--mono); color: var(--dim); letter-spacing: .15em; }
.project h3 { font-size: 1.1rem; letter-spacing: .04em; }
.proj-body { padding: 0 1.6rem 1.6rem; border-top: 1px solid var(--border); padding-top: 1.4rem; }
.preview { display: block; margin-bottom: 1.3rem; border: 1px solid var(--border); border-radius: var(--r); overflow: hidden; }
.preview img { width: 100%; height: auto; transition: transform .5s; }
.preview:hover img { transform: scale(1.03); }
.proj-body h4 { font-size: clamp(1.15rem, 3.5vw, 1.6rem); line-height: 1.3; margin-bottom: .8rem; }
.proj-body p { color: var(--dim); font-size: .92rem; margin-bottom: 1.2rem; }
.meta { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; padding: 1.1rem; margin: 1.3rem 0; border: 1px solid var(--border); border-radius: 8px; }
.meta dt { font: .6rem var(--mono); letter-spacing: .15em; color: var(--dim); }
.meta dd { font-weight: 700; }
.meta div:first-child dd { color: var(--accent); }
.tags { display: flex; flex-wrap: wrap; gap: .5rem; }
.tags li { font: .63rem var(--mono); letter-spacing: .1em; color: var(--ice); border: 1px solid var(--teal); background: rgba(11,89,101,.15); border-radius: 20px; padding: .3rem .8rem; }

/* Skills / certificates */
.skills h3 { font: .7rem var(--mono); letter-spacing: .25em; color: var(--dim); margin: 2rem 0 1rem; padding-bottom: .6rem; border-bottom: 1px solid var(--border); }
.skill { padding: 1.2rem; text-align: center; color: var(--dim); font-size: .88rem; }
.skill:hover { color: var(--fg); transform: translateY(-3px); }
.skill b { display: block; font: 700 1.6rem var(--mono); color: var(--teal); }
.skills-grid { grid-template-columns: repeat(2, 1fr); }
.skill-language { min-height: 92px; display: flex; flex-direction: column; justify-content: center; gap: .35rem; }
.skill-language b { font-size: 1.15rem; letter-spacing: .04em; }
.skill-language span { font: .62rem var(--mono); letter-spacing: .12em; color: var(--dim); text-transform: uppercase; }
.cert { position: relative; display: flex; flex-direction: column; gap: .5rem; padding: 1.4rem; overflow: hidden; }
.cert::before { content: ''; position: absolute; inset: 0 0 auto; height: 2px; background: linear-gradient(90deg, var(--teal), var(--accent)); }
.cert:hover { transform: translateY(-4px); }
.cert small { font: .58rem var(--mono); letter-spacing: .18em; color: var(--dim); }
.cert h3 { font-size: .98rem; line-height: 1.3; }
.cert time { font: .65rem var(--mono); color: var(--ice); }
.cert p { font: .62rem/1.6 var(--mono); color: var(--accent); word-break: break-all; }
.cert .btn { align-self: flex-start; margin-top: auto; }
.cert-with-preview { min-width: 0; }
.cert-preview { display: block; width: 100%; aspect-ratio: 1080 / 834; padding: 0; margin: .5rem 0 .25rem; overflow: hidden; border: 1px solid var(--border); border-radius: 10px; background: #f7f7f8; }
.cert-preview img { width: 100%; height: 100%; display: block; object-fit: contain; }
.cert-actions { flex-wrap: wrap; }

/* Galleries */
.gallery { display: grid; gap: 1rem; grid-template-columns: repeat(2, 1fr); }
.shot { position: relative; overflow: hidden; padding: 0; border: 1px solid var(--border); border-radius: var(--r); background: var(--card); cursor: zoom-in; transition: border-color .25s, transform .25s; }
.shot:hover { border-color: var(--accent); transform: translateY(-4px); }
.shot img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.shot:hover img { transform: scale(1.05); }
.logos .shot { aspect-ratio: 1; }
.cars .shot { aspect-ratio: 4 / 3; }
.cars .wide { grid-column: 1 / -1; aspect-ratio: 21 / 9; }
.clients .shot { aspect-ratio: 3 / 4; }
.cap { position: absolute; inset: auto 0 0; padding: 2.5rem 1rem 1rem; text-align: left; font: .7rem var(--mono); letter-spacing: .1em; color: #E8F4F6; background: linear-gradient(transparent, rgba(4,7,9,.92)); opacity: 0; transition: opacity .3s; }
.cap small { display: block; color: var(--ice); margin-bottom: .3rem; }
.cap em { display: block; font: normal .72rem var(--sans); letter-spacing: 0; color: var(--ice); margin-top: .3rem; }
.shot:hover .cap, .shot:focus-visible .cap { opacity: 1; }
@media (hover: none) { .cap { opacity: 1; } }
@media (min-width: 600px) { .skills-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 700px) { .logos { grid-template-columns: repeat(3, 1fr); } }

/* Lightbox (native <dialog>) */
dialog { border: 0; background: transparent; color: #E8F4F6; width: 100%; height: 100%; max-width: 100vw; max-height: 100vh; }
dialog[open] { display: grid; place-items: center; }
dialog::backdrop { background: rgba(4,7,9,.95); }
dialog img { max-width: 92vw; max-height: 82vh; object-fit: contain; border-radius: var(--r); }
dialog .icon-btn { position: absolute; color: #E8F4F6; }
#lb-close { top: 1rem; right: 1rem; } #lb-prev { left: .8rem; top: 50%; } #lb-next { right: .8rem; top: 50%; }
#lb-count { position: absolute; bottom: 1.2rem; font: .65rem var(--mono); letter-spacing: .2em; color: var(--dim); }

/* Contact / footer */
#contact { text-align: center; padding-bottom: 4rem; }
.big { font-size: clamp(2.6rem, 10vw, 5rem); font-weight: 900; line-height: 1; margin: 1rem 0 1.5rem; }
.big span { background: linear-gradient(135deg, var(--ice), var(--accent)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.email { font: .9rem var(--mono); color: var(--dim); border-bottom: 1px solid var(--accent); padding-bottom: 3px; }
.email:hover { color: var(--accent); }
#contact .row { justify-content: center; margin-top: 1.5rem; }
.socials { margin-top: 2rem; }
.socials a { font: .7rem var(--mono); letter-spacing: .1em; padding: .55rem 1.1rem; border: 1px solid var(--border); border-radius: 30px; color: var(--dim); transition: .2s; }
.socials a:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-3px); }
footer { text-align: center; padding: 1.5rem; border-top: 1px solid var(--border); font: .62rem var(--mono); letter-spacing: .15em; color: var(--dim); }
footer span { color: var(--accent); }
#top { position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 40; opacity: 0; pointer-events: none; transition: opacity .3s; background: var(--teal); color: #E8F4F6; border: 0; }
#top.show { opacity: 1; pointer-events: auto; }
#toast { position: fixed; left: 50%; bottom: 5rem; z-index: 95; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; transition: .3s; background: var(--bg2); border: 1px solid var(--accent); color: var(--accent); font: .72rem var(--mono); padding: .7rem 1.2rem; border-radius: 8px; }
#toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-delay: 0s !important; transition-duration: .01ms !important; }
}

/* ===== Language switch + Arabic / RTL ===== */
#lang { font: 700 .68rem var(--mono); }
[lang="ar"] body { font-family: 'Cairo', var(--sans); }
[lang="ar"] .links a, [lang="ar"] .btn, [lang="ar"] .tag-line, [lang="ar"] .stats span,
[lang="ar"] .skills h3, [lang="ar"] .role { letter-spacing: 0; }
[dir="rtl"] .label b { margin-right: 0; margin-left: .5rem; }

/* ===== Certificate flip (front / back) ===== */
.flip { perspective: 1200px; aspect-ratio: 1080 / 834; margin: 1rem 0; cursor: pointer; }
.flip-in { position: relative; width: 100%; height: 100%; transform-style: preserve-3d; transition: transform .8s cubic-bezier(.4, .2, .2, 1); }
.flip:not(.flipped):hover .flip-in { transform: rotateY(-8deg); }
.flip.flipped .flip-in { transform: rotateY(180deg); }
.flip.flipped:hover .flip-in { transform: rotateY(172deg); }
.flip .face { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; background: #f7f7f8; border: 1px solid var(--border); border-radius: 10px; backface-visibility: hidden; -webkit-backface-visibility: hidden; }
.flip .back { transform: rotateY(180deg); }
@media (prefers-reduced-motion: reduce) { .flip-in { transition: none; } }