/* ---------- Tokens ---------- */
:root {
  --bg: #F7F5F0;
  --surface: #FFFFFF;
  --text: #14213D;
  --muted: #4A5468;
  --line: #DDD8CC;
  --accent: #E3A33B;
  --accent-text: #8A5A0F;
  --block: #14213D;
  --on-block: #F7F5F0;
  --on-block-muted: #B9C0CF;
  --wa: #167A3E;
  --wa-hover: #11662F;
  --font: "Sora", "Segoe UI", system-ui, sans-serif;
  --font-ar: "IBM Plex Sans Arabic", "Segoe UI", Tahoma, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --wrap: 1120px;
  --radius: 14px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  box-sizing: border-box;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0E1629;
    --surface: #152039;
    --text: #ECE9E2;
    --muted: #A9B1C2;
    --line: #27335170;
    --accent-text: #E8B45C;
    --block: #0A1122;
    --on-block: #ECE9E2;
    --on-block-muted: #A9B1C2;
  }
}

:root[data-theme="dark"] {
  --bg: #0E1629;
  --surface: #152039;
  --text: #ECE9E2;
  --muted: #A9B1C2;
  --line: #27335170;
  --accent-text: #E8B45C;
  --block: #0A1122;
  --on-block: #ECE9E2;
  --on-block-muted: #A9B1C2;
}

*,
*::before,
*::after {
  box-sizing: inherit
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(env(safe-area-inset-top, 0px) + 84px);
  -webkit-text-size-adjust: 100%
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  transition: opacity .25s ease
}

html[lang="ar"] body {
  font-family: var(--font-ar);
  font-size: 18px;
  line-height: 1.85
}

body.switching {
  opacity: 0
}

img,
svg {
  max-width: 100%
}

a {
  color: inherit
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px
}

.wrap {
  width: min(var(--wrap), 100% - 48px);
  margin-inline: auto
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap
}

.skip {
  position: absolute;
  inset-inline-start: 16px;
  top: -60px;
  background: var(--block);
  color: var(--on-block);
  padding: 10px 16px;
  border-radius: 8px;
  z-index: 100;
  text-decoration: none
}

.skip:focus {
  top: calc(env(safe-area-inset-top, 0px) + 12px)
}

.ltr {
  direction: ltr;
  unicode-bidi: isolate
}

[dir="rtl"] .ltr {
  text-align: right
}

.chips.ltr {
  direction: inherit;
  text-align: start
}

.chips.ltr li,
.chips li.ltr {
  direction: ltr;
  unicode-bidi: isolate
}

/* ---------- Logo ---------- */
.logo-tile {
  fill: var(--text)
}

.logo-m {
  stroke: var(--bg)
}

.logo-c {
  fill: var(--accent)
}

/* ---------- Progress ---------- */
.progress {
  position: fixed;
  top: 0;
  inset-inline: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  z-index: 60;
  padding-top: 0
}

[dir="rtl"] .progress {
  transform-origin: right
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s
}

.site-header.scrolled {
  border-bottom-color: var(--line)
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 72px
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -.04em;
  font-family: var(--font)
}

.brand .cursor {
  color: var(--accent)
}

.nav-links {
  display: flex;
  gap: 4px;
  margin-inline-start: auto;
  list-style: none;
  padding: 0;
  margin-block: 0
}

.nav-links a {
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 15px;
  color: var(--muted);
  transition: color .2s, background .2s
}

.nav-links a:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--text) 6%, transparent)
}

.nav-links a.active {
  color: var(--text)
}

.nav-links a.active::after {
  content: "";
  display: block;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  margin-top: 2px
}

.lang {
  display: flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
  flex-shrink: 0
}

.lang button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: 600 13px/1 var(--font);
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
  min-height: 34px;
  transition: background .2s, color .2s
}

.lang button[lang="ar"] {
  font-family: var(--font-ar);
  font-size: 14px
}

.lang button[aria-pressed="true"] {
  background: var(--text);
  color: var(--bg)
}

.menu-btn {
  display: none;
  margin-inline-start: auto;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center
}

.menu-btn span,
.menu-btn span::before,
.menu-btn span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  position: relative;
  transition: transform .3s var(--ease), opacity .2s
}

.menu-btn span::before,
.menu-btn span::after {
  content: "";
  position: absolute;
  inset-inline-start: 0
}

.menu-btn span::before {
  top: -6px
}

.menu-btn span::after {
  top: 6px
}

.menu-btn[aria-expanded="true"] span {
  background: transparent
}

.menu-btn[aria-expanded="true"] span::before {
  transform: translateY(6px) rotate(45deg)
}

.menu-btn[aria-expanded="true"] span::after {
  transform: translateY(-6px) rotate(-45deg)
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 50px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: transform .25s var(--ease), background .2s, box-shadow .25s, border-color .2s
}

.btn:hover {
  transform: translateY(-2px)
}

.btn:active {
  transform: translateY(0)
}

.btn-wa {
  background: var(--wa);
  color: #fff;
  box-shadow: 0 6px 18px -8px var(--wa)
}

.btn-wa:hover {
  background: var(--wa-hover);
  box-shadow: 0 10px 24px -10px var(--wa)
}

.btn-ghost {
  border: 1.5px solid var(--text);
  color: var(--text)
}

.btn-ghost:hover {
  background: var(--text);
  color: var(--bg)
}

.btn svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0
}

/* ---------- Hero ---------- */
.hero {
  padding-block: 72px 96px
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 56px;
  align-items: center
}

.hello {
  font-size: 18px;
  color: var(--accent-text);
  margin: 0 0 18px
}

.hello strong {
  color: var(--text);
  font-weight: 600
}

.hero h1 {
  font-size: clamp(36px, 5vw, 62px);
  line-height: 1.06;
  letter-spacing: -.035em;
  margin: 0 0 24px;
  font-weight: 700;
  max-width: 17ch
}

html[lang="ar"] .hero h1 {
  letter-spacing: 0;
  line-height: 1.3;
  max-width: 16ch
}

.hero .lead {
  font-size: 19px;
  color: var(--muted);
  max-width: 56ch;
  margin: 0 0 34px
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px
}

.terminal {
  background: var(--block);
  color: var(--on-block);
  border-radius: 18px;
  padding: 0;
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(10, 17, 34, .55);
  font-family: var(--mono);
  font-size: 14.5px;
  line-height: 1.75
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, .08)
}

.term-bar .dots {
  display: flex;
  gap: 6px
}

.term-bar .dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .18)
}

.term-bar .dots i:first-child {
  background: var(--accent)
}

.term-bar small {
  color: var(--on-block-muted);
  font-size: 12.5px
}

.term-body {
  padding: 20px 22px 26px;
  min-height: 292px;
  overflow-x: auto
}

.term-body p {
  margin: 0;
  white-space: pre-wrap
}

.term-body .cmd::before {
  content: "$ ";
  color: var(--accent)
}

.term-body .out {
  color: var(--on-block-muted);
  margin-bottom: 10px
}

.caret {
  display: inline-block;
  width: .6em;
  height: 2px;
  background: var(--accent);
  vertical-align: -2px;
  margin-inline-start: 2px;
  animation: blink 1s steps(1) infinite
}

@keyframes blink {
  50% {
    opacity: 0
  }
}

/* ---------- Sections ---------- */
section {
  padding-block: 96px
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 44px;
  flex-wrap: wrap
}

h2 {
  font-size: clamp(30px, 3.6vw, 44px);
  letter-spacing: -.03em;
  line-height: 1.1;
  margin: 0;
  font-weight: 700
}

html[lang="ar"] h2 {
  letter-spacing: 0;
  line-height: 1.35
}

h2 .cursor {
  color: var(--accent)
}

.section-head p {
  margin: 0;
  color: var(--muted);
  max-width: 46ch
}

h3 {
  font-size: 21px;
  letter-spacing: -.015em;
  line-height: 1.3;
  margin: 0
}

html[lang="ar"] h3 {
  letter-spacing: 0
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 64px;
  align-items: start
}

.about-text p {
  margin: 0 0 18px;
  max-width: 62ch
}

.about-text p:first-child {
  font-size: 21px;
  line-height: 1.55;
  color: var(--text)
}

.proud {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px
}

.proud li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: baseline;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line)
}

.proud li:last-child {
  border-bottom: 0
}

.proud b {
  font-size: 30px;
  letter-spacing: -.03em;
  font-weight: 700;
  color: var(--text);
  min-width: 3.2ch;
  direction: ltr;
  unicode-bidi: isolate
}

.proud span {
  color: var(--muted);
  font-size: 16px
}

.proud-title {
  font-size: 15px;
  color: var(--muted);
  margin: 0 0 18px;
  font-weight: 600
}

/* Skills */
#skills {
  background: var(--surface)
}

.skill-rows {
  display: grid;
  gap: 0
}

.skill-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  padding-block: 22px;
  border-top: 1px solid var(--line)
}

.skill-row:last-child {
  border-bottom: 1px solid var(--line)
}

.skill-row h3 {
  font-size: 17px;
  font-weight: 600
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0
}

.chips li {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 15px;
  background: var(--bg);
  transition: border-color .2s, transform .2s var(--ease)
}

.chips li:hover {
  border-color: var(--accent);
  transform: translateY(-1px)
}

/* Experience */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative
}

.timeline::before {
  content: "";
  position: absolute;
  inset-block: 8px;
  inset-inline-start: 7px;
  width: 2px;
  background: var(--line)
}

.job {
  position: relative;
  padding-inline-start: 48px;
  padding-bottom: 52px
}

.job:last-child {
  padding-bottom: 0
}

.job::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: 7px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--accent)
}

.job-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 24px;
  margin-bottom: 6px
}

.job-org {
  color: var(--muted);
  margin: 0 0 14px;
  font-size: 16px
}

.job time {
  color: var(--accent-text);
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap
}

.job ul {
  margin: 0;
  padding-inline-start: 20px;
  max-width: 72ch
}

.job li {
  margin-bottom: 6px
}

.job li::marker {
  color: var(--accent)
}

/* Projects */
#projects {
  background: var(--surface)
}

.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding: 44px;
  border-radius: 22px;
  background: var(--block);
  color: var(--on-block);
  margin-bottom: 28px
}

.feature .muted {
  color: var(--on-block-muted)
}

.feature h3 {
  font-size: 30px;
  letter-spacing: -.03em;
  margin-bottom: 10px
}

.feature ul {
  margin: 0;
  padding-inline-start: 20px;
  color: var(--on-block-muted)
}

.feature li {
  margin-bottom: 8px
}

.feature li::marker {
  color: var(--accent)
}

.feature .tags li {
  background: transparent;
  border-color: rgba(255, 255, 255, .2);
  color: var(--on-block)
}

.feature .plink {
  color: var(--on-block)
}

.feature-note {
  margin-top: 18px;
  font-size: 15px;
  color: var(--on-block-muted);
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .06)
}

.proj-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px
}

.proj {
  padding: 30px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color .25s, transform .3s var(--ease)
}

.proj:hover {
  border-color: var(--text);
  transform: translateY(-3px)
}

.proj p {
  margin: 0;
  color: var(--muted)
}

.proj .tags {
  margin-top: auto;
  padding-top: 8px
}

.tags li {
  font-size: 13.5px;
  padding: 4px 12px
}

.plink {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  text-decoration: none;
  min-height: 44px
}

.plink svg {
  width: 16px;
  height: 16px;
  transition: transform .25s var(--ease)
}

.plink:hover {
  text-decoration: underline;
  text-underline-offset: 4px
}

.plink:hover svg {
  transform: translate(2px, -2px)
}

[dir="rtl"] .plink svg {
  transform: scaleX(-1)
}

[dir="rtl"] .plink:hover svg {
  transform: scaleX(-1) translate(2px, -2px)
}

/* Education & certs */
.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px
}

.edu-grid h3.col {
  font-size: 15px;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 22px
}

.card-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px
}

.card-list li {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line)
}

.card-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0
}

.card-list h4 {
  font-size: 18px;
  margin: 0 0 4px;
  line-height: 1.4
}

.card-list .meta {
  color: var(--accent-text);
  font-weight: 600;
  font-size: 15px;
  margin: 0 0 8px
}

.card-list p {
  margin: 0;
  color: var(--muted);
  font-size: 16px
}

/* Contact */
.contact {
  background: var(--block);
  color: var(--on-block);
  padding-block: 110px
}

.contact-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 56px;
  align-items: center
}

.contact h2 {
  font-size: clamp(34px, 4.6vw, 58px);
  margin-bottom: 18px
}

.contact p {
  color: var(--on-block-muted);
  margin: 0;
  max-width: 44ch;
  font-size: 18px
}

.wa-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 26px 28px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .12);
  text-decoration: none;
  color: var(--on-block);
  transition: background .25s, border-color .25s, transform .3s var(--ease)
}

.wa-card:hover {
  background: rgba(255, 255, 255, .09);
  border-color: #25D366;
  transform: translateY(-3px)
}

.wa-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: #25D366;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  color: #fff
}

.wa-icon svg {
  width: 36px;
  height: 36px
}

.wa-card small {
  display: block;
  color: var(--on-block-muted);
  font-size: 15px
}

.wa-card strong {
  display: block;
  font-size: 24px;
  letter-spacing: -.01em;
  margin-top: 2px
}

.other-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 22px;
  font-size: 15px
}

.other-links a {
  color: var(--on-block-muted);
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center
}

.other-links a:hover {
  color: var(--on-block);
  text-decoration: underline;
  text-underline-offset: 4px
}

/* Footer */
footer {
  padding-block: 34px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  color: var(--muted)
}

.foot {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  align-items: center;
  justify-content: space-between
}

.foot .brand {
  font-size: 18px;
  color: var(--text)
}

/* ---------- Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s var(--ease), transform .7s var(--ease)
}

.reveal.in {
  opacity: 1;
  transform: none
}

.reveal.d1 {
  transition-delay: .08s
}

.reveal.d2 {
  transition-delay: .16s
}

.reveal.d3 {
  transition-delay: .24s
}

.no-js .reveal {
  opacity: 1;
  transform: none
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {

  .hero-grid,
  .about-grid,
  .feature,
  .edu-grid,
  .contact-inner {
    grid-template-columns: 1fr
  }

  .hero-grid {
    gap: 44px
  }

  .feature {
    padding: 32px
  }

  .skill-row {
    grid-template-columns: 1fr;
    gap: 12px
  }
}

@media (max-width: 860px) {
  .menu-btn {
    display: inline-flex
  }

  .nav {
    gap: 12px
  }

  .nav-links {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    flex-direction: column;
    gap: 0;
    padding: 8px 16px 16px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    margin: 0;
    display: none
  }

  .nav-links.open {
    display: flex
  }

  .nav-links a {
    padding: 14px 12px;
    font-size: 17px
  }

  .nav-links a.active::after {
    display: none
  }

  .lang {
    order: 3
  }

  .menu-btn {
    order: 2
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px
  }

  .hero {
    padding-block: 44px 72px
  }

  section {
    padding-block: 72px
  }

  .proj-grid {
    grid-template-columns: 1fr
  }

  .proj {
    padding: 24px
  }

  .feature {
    padding: 26px;
    border-radius: 18px
  }

  .feature h3 {
    font-size: 25px
  }

  .brand .word {
    display: none
  }

  .term-body {
    min-height: 260px;
    font-size: 13px
  }

  .wa-card {
    padding: 20px
  }

  .wa-card strong {
    font-size: 20px
  }

  .actions .btn {
    flex: 1 1 100%;
    justify-content: center
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important
  }

  .reveal {
    opacity: 1;
    transform: none
  }
}