:root {
  --ink: #17324a;
  --ink-2: #294861;
  --muted: #667f93;
  --paper: #f8fafc;
  --surface: #ffffff;
  --soft: #eef6f6;
  --soft-blue: #eef5fb;
  --line: #dbe5ec;
  --accent: #117f79;
  --accent-dark: #0d6763;
  --blue: #2f73b9;
  --shadow: 0 16px 42px rgba(23, 50, 74, .09);
  --radius: 20px;
}

:root[data-theme="dark"] {
  --ink: #eef6fb;
  --ink-2: #d7e5ee;
  --muted: #9eb2c1;
  --paper: #0a1721;
  --surface: #112532;
  --soft: #102a30;
  --soft-blue: #102432;
  --line: #294250;
  --accent: #5bc8c1;
  --accent-dark: #79d8d2;
  --blue: #74ace3;
  --shadow: 0 16px 42px rgba(0, 0, 0, .25);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 10% 7%, color-mix(in srgb, var(--soft-blue) 65%, transparent) 0, transparent 24rem),
    radial-gradient(circle at 91% 22%, color-mix(in srgb, var(--soft) 62%, transparent) 0, transparent 25rem),
    var(--paper);
  color: var(--ink);
  font-family: "DM Sans", sans-serif;
  line-height: 1.55;
  transition: background .25s, color .25s;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 16px; top: 16px; z-index: 1000; padding: 11px 16px; background: var(--surface); border-radius: 10px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  padding: 0 clamp(22px, 5vw, 74px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 76%, transparent);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 10px; font-family: Manrope, sans-serif; letter-spacing: -.025em; }
.brand span { display: grid; place-items: center; width: 35px; height: 35px; border-radius: 11px; background: var(--ink); color: var(--paper); font-size: .7rem; font-weight: 800; }
.site-header nav { display: flex; align-items: center; gap: 28px; color: var(--muted); font-size: .86rem; font-weight: 700; }
.site-header nav a { padding: 9px 0; }
.site-header nav a:hover { color: var(--accent); }
.theme-toggle { display: grid; place-items: center; width: 39px; height: 39px; padding: 0; border: 1px solid var(--line); border-radius: 50%; background: var(--surface); color: var(--ink); cursor: pointer; transition: transform .2s, border-color .2s; }
.theme-toggle:hover { transform: rotate(12deg); border-color: var(--accent); }
.theme-toggle svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.moon-icon { display: none; }
:root[data-theme="dark"] .sun-icon { display: none; }
:root[data-theme="dark"] .moon-icon { display: block; }

.section-rail { position: fixed; z-index: 40; top: 50%; right: 22px; display: flex; flex-direction: column; gap: 12px; transform: translateY(-50%); }
.section-rail::before { position: absolute; z-index: -1; top: 9px; bottom: 9px; left: 6px; width: 1px; background: var(--line); content: ""; }
.section-rail a { display: flex; align-items: center; gap: 9px; min-height: 22px; color: var(--muted); font-size: .67rem; font-weight: 700; letter-spacing: .04em; }
.section-rail a span { width: 13px; height: 13px; flex: none; border: 2px solid var(--paper); border-radius: 50%; background: var(--line); box-shadow: 0 0 0 1px var(--line); transition: background .2s, transform .2s; }
.section-rail a b { max-width: 0; overflow: hidden; opacity: 0; transition: max-width .2s, opacity .2s; }
.section-rail:hover a b, .section-rail a.active b { max-width: 80px; opacity: 1; }
.section-rail a.active { color: var(--accent); }
.section-rail a.active span { background: var(--accent); transform: scale(1.08); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr);
  align-items: center;
  gap: clamp(48px, 7vw, 100px);
  width: min(1260px, calc(100% - 48px));
  min-height: 570px;
  margin: auto;
  padding: 70px 0;
}
.hero-kicker, .section-kicker { margin: 0 0 11px; color: var(--accent); font-size: .72rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.hero h1, .section h2 { margin: 0; font-family: Manrope, sans-serif; letter-spacing: -.048em; line-height: 1.06; }
.hero h1 { font-size: clamp(3.1rem, 4.8vw, 4.8rem); }
.hero-role { margin: 10px 0 0; color: var(--blue); font: 700 clamp(1.25rem, 2vw, 1.7rem) Manrope, sans-serif; }
.hero-lead { max-width: 640px; margin: 22px 0 20px; color: var(--muted); font-size: 1.08rem; }
.focus-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.focus-list span { padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink-2); font-size: .74rem; font-weight: 700; }
.hero-actions { display: flex; align-items: center; gap: 23px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 12px 20px; border-radius: 12px; background: var(--ink); color: var(--paper); font-weight: 700; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); background: var(--accent-dark); }
.button .down-arrow { margin-left: 8px; font-size: 1.08rem; line-height: 1; transition: transform .2s ease; }
.button:hover .down-arrow { transform: translateY(3px); }
.text-link { padding-bottom: 2px; border-bottom: 1px solid var(--line); font-weight: 700; }
.text-link:hover { color: var(--accent); }
.social-button { display: inline-flex; width: auto; height: 42px; flex: none; align-items: center; justify-content: center; gap: 8px; padding: 0 13px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink); box-shadow: 0 7px 20px rgba(23, 50, 74, .06); transition: transform .2s, border-color .2s, color .2s, background .2s; }
.social-button:hover { transform: translateY(-2px); border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--surface)); color: var(--accent); }
.social-button span { color: var(--ink-2); font-size: .78rem; font-weight: 800; }
.social-button svg { width: 19px; height: 19px; fill: currentColor; }
.social-button[href*="linkedin.com"] svg { color: #0a66c2; }
.social-button[href*="github.com"] svg { color: #181717; }
:root[data-theme="dark"] .social-button[href*="github.com"] svg { color: #f3f3f3; }
.portrait-wrap { position: relative; width: min(100%, 370px); margin: auto; }
.portrait-backdrop { position: absolute; inset: 8% -8% -7% 8%; border-radius: 32px; background: linear-gradient(145deg, #d9eeee, #dfeaf7); transform: rotate(3deg); }
:root[data-theme="dark"] .portrait-backdrop { background: linear-gradient(145deg, #174149, #18354b); }
.portrait { position: relative; width: 100%; aspect-ratio: 1; border: 6px solid var(--surface); border-radius: 28px; object-fit: cover; object-position: 50% 42%; box-shadow: var(--shadow); }
.location-chip { position: absolute; right: -7%; bottom: 8%; display: flex; align-items: center; gap: 9px; padding: 10px 13px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); box-shadow: var(--shadow); font-size: .75rem; font-weight: 700; }
.location-chip span { width: 9px; height: 9px; border-radius: 50%; background: #32b97b; box-shadow: 0 0 0 4px rgba(50, 185, 123, .14); }

.section { width: min(1500px, 100%); margin: auto; padding: clamp(74px, 7vw, 105px) clamp(24px, 7vw, 105px); scroll-margin-top: 66px; }
.section-heading { display: grid; grid-template-columns: 1.05fr .95fr; align-items: end; gap: 50px; margin-bottom: 34px; }
.section h2 { font-size: clamp(2.3rem, 4vw, 4rem); }
.section-heading > p { max-width: 510px; margin: 0; color: var(--muted); }

.about-section { padding-top: 62px; padding-bottom: 62px; }
.about-intro { display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(42px, 7vw, 98px); align-items: start; }
.about-intro h2 { max-width: 470px; font-size: clamp(2.35rem, 3.6vw, 3.8rem); }
.about-copy { position: relative; padding-left: 25px; border-left: 2px solid color-mix(in srgb, var(--accent) 32%, var(--line)); }
.about-copy p { margin: 0 0 14px; color: var(--ink-2); font-size: .98rem; }
.about-copy p:last-child { margin-bottom: 0; }
.capability-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 28px; }
.capability-card { position: relative; min-height: 190px; padding: 20px; overflow: hidden; border: 1px solid var(--line); border-radius: 17px; background: color-mix(in srgb, var(--surface) 94%, var(--soft-blue)); box-shadow: 0 8px 26px rgba(23, 50, 74, .035); }
.capability-card::after { position: absolute; right: -45px; bottom: -55px; width: 125px; height: 125px; border-radius: 50%; background: color-mix(in srgb, var(--accent) 7%, transparent); content: ""; }
.capability-number { color: var(--accent); font-size: .67rem; font-weight: 800; letter-spacing: .12em; }
.capability-card h3 { margin: 12px 0 7px; font: 700 1.02rem Manrope, sans-serif; letter-spacing: -.025em; }
.capability-card p { margin: 0 0 13px; color: var(--muted); font-size: .75rem; line-height: 1.45; }
.capability-tools { position: relative; z-index: 1; }
.capability-tools span { background: color-mix(in srgb, var(--accent) 8%, var(--surface)); color: var(--accent-dark); }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.filter { padding: 8px 13px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--muted); cursor: pointer; font-size: .74rem; font-weight: 700; }
.filter.active, .filter:hover { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.project-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 17px; }
.project-card { --card-accent: var(--accent); display: grid; grid-template-columns: 108px minmax(0, 1fr); gap: 15px; min-width: 0; min-height: 142px; padding: 15px; border: 1px solid var(--line); border-radius: 18px; background: color-mix(in srgb, var(--surface) 97%, var(--soft-blue)); box-shadow: inset 0 3px 0 color-mix(in srgb, var(--card-accent) 44%, transparent); transition: transform .2s, box-shadow .2s, border-color .2s; }
.project-card.category-ai { --card-accent: #7b61b6; }
.project-card.category-machine-learning { --card-accent: #257cb3; }
.project-card.category-analytics { --card-accent: #168b76; }
.project-card.category-software { --card-accent: #d37b38; }
.project-card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); box-shadow: var(--shadow); }
.project-thumb { display: block; width: 108px; height: 108px; align-self: center; overflow: hidden; border-radius: 14px; background: var(--image-background, #edf2f7); }
.project-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .25s; }
.project-thumb.fit-contain img { object-fit: contain; }
.project-card:hover .project-thumb img { transform: scale(1.035); }
.project-content { display: flex; min-width: 0; flex-direction: column; }
.project-meta { display: flex; justify-content: space-between; gap: 7px; color: var(--accent); font-size: .55rem; font-weight: 800; letter-spacing: .055em; text-transform: uppercase; }
.project-meta span:last-child { overflow: hidden; color: var(--muted); text-align: right; text-overflow: ellipsis; white-space: nowrap; }
.project-content h3 { margin: 5px 0 4px; font: 700 .98rem Manrope, sans-serif; letter-spacing: -.025em; line-height: 1.2; }
.project-content h3 a:hover { color: var(--accent); }
.project-content > p { display: -webkit-box; min-height: 48px; margin: 0; overflow: hidden; color: var(--muted); font-size: .74rem; line-height: 1.42; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }
.project-footer { display: flex; align-items: end; justify-content: space-between; gap: 8px; margin-top: auto; padding-top: 7px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-list span { padding: 5px 8px; border-radius: 999px; background: color-mix(in srgb, var(--ink) 8%, transparent); color: var(--ink-2); font-size: .64rem; font-weight: 700; }
.compact-tags { min-width: 0; flex-wrap: nowrap; overflow: hidden; }
.compact-tags span { padding: 3px 6px; font-size: .56rem; white-space: nowrap; }
.project-arrow { display: grid; width: 25px; height: 25px; flex: none; place-items: center; border-radius: 8px; background: var(--soft); color: var(--accent); font-size: .76rem; font-weight: 800; }

.experience-section { max-width: none; background: var(--soft); }
.experience-section .section-heading, .experience-timeline { width: min(1120px, 100%); margin-right: auto; margin-left: auto; }
.experience-timeline { display: flex; flex-direction: column; gap: 13px; }
.experience-item { position: relative; display: grid; grid-template-columns: 190px minmax(0, 1fr); grid-template-rows: auto 1fr; align-items: start; column-gap: 28px; row-gap: 8px; padding: 25px 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.experience-period { grid-column: 1; grid-row: 1; width: 100%; padding-top: 0; color: var(--accent); font-size: .75rem; font-weight: 800; letter-spacing: .055em; text-align: center; text-transform: uppercase; }
.organization-logo { display: grid; grid-column: 1; grid-row: 2; width: 178px; height: 92px; margin: 0 auto; place-items: center; align-self: center; justify-self: center; padding: 0; border: 0; border-radius: 0; background: transparent; }
.organization-logo img { width: 100%; height: 100%; object-fit: contain; }
.organization-logo img[alt*="Israeli Air Force"] { width: 84%; height: 84%; }
.experience-body { grid-column: 2; grid-row: 1 / span 2; }
.experience-body h3 { margin: 0; font: 700 1.28rem Manrope, sans-serif; }
.experience-body strong { display: block; margin-top: 2px; color: var(--muted); font-size: .84rem; }
.experience-body p { margin: 8px 0 11px; color: var(--ink-2); font-size: .88rem; }
.detail-list { display: grid; gap: 6px; margin: 0 0 14px; padding-left: 18px; color: var(--muted); font-size: .79rem; }
.detail-list li::marker { color: var(--accent); }

.education-layout { display: grid; grid-template-columns: 1.08fr .92fr; align-items: start; gap: 38px; }
.education-list { display: flex; flex-direction: column; gap: 12px; }
.education-item { display: grid; grid-template-columns: 110px minmax(0, 1fr); align-items: center; gap: 20px; padding: 21px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.school-logo { display: grid; place-items: center; width: 110px; height: 78px; padding: 8px; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.school-logo img { width: 100%; height: 100%; object-fit: contain; }
.education-copy > span { color: var(--accent); font-size: .7rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
.education-copy h3 { margin: 4px 0 2px; font: 700 1.05rem Manrope, sans-serif; }
.education-copy strong { color: var(--muted); font-size: .8rem; }
.education-copy em { display: block; margin-top: 5px; color: var(--accent); font-size: .72rem; font-style: normal; font-weight: 800; }
.education-item:first-child .education-copy em { display: inline-flex; margin-top: 8px; padding: 5px 9px; border: 1px solid color-mix(in srgb, #b88318 36%, var(--line)); border-radius: 999px; background: color-mix(in srgb, #f3c85a 20%, var(--surface)); color: #9a6710; font-size: .78rem; font-weight: 900; letter-spacing: .015em; }
:root[data-theme="dark"] .education-item:first-child .education-copy em { color: #ffd778; }
.education-copy p { margin: 7px 0 0; color: var(--muted); font-size: .78rem; }
.education-details { margin-top: 10px; margin-bottom: 0; font-size: .75rem; }
.certifications > h3 { margin: 0 0 14px; font: 700 1.2rem Manrope, sans-serif; }
.cert-card { display: flex; align-items: flex-start; gap: 15px; margin-bottom: 11px; padding: 17px; border: 1px solid var(--line); border-radius: 17px; background: color-mix(in srgb, var(--surface) 96%, var(--soft)); }
.cert-logo { display: grid; width: 46px; height: 46px; flex: none; place-items: center; padding: 7px; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.cert-logo img { width: 100%; height: 100%; object-fit: contain; }
.cert-card h4 { margin: 0 0 2px; font: 700 .84rem Manrope, sans-serif; line-height: 1.3; }
.cert-card strong, .cert-card span { display: block; color: var(--muted); font-size: .69rem; }
.cert-card p { margin: 9px 0 0; color: var(--muted); font-size: .74rem; line-height: 1.48; }

.contact { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 45px; max-width: 1300px; margin-bottom: 74px; padding-top: 52px; padding-bottom: 52px; border: 1px solid color-mix(in srgb, var(--accent) 16%, var(--line)); border-radius: 28px; background: linear-gradient(135deg, var(--soft), var(--soft-blue)); }
.contact h2 { font-size: clamp(2.2rem, 3.5vw, 3.4rem); }
.contact p:not(.section-kicker) { max-width: 560px; margin: 12px 0 0; color: var(--muted); font-size: .96rem; }
.contact-details { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 23px; }
.contact-details a { display: flex; align-items: center; gap: 10px; padding: 10px 13px; border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--line)); border-radius: 12px; background: color-mix(in srgb, var(--surface) 78%, transparent); }
.contact-details a:hover { border-color: var(--accent); }
.contact-detail-icon { width: 27px; height: 27px; flex: none; }
.contact-detail-copy { display: grid; gap: 2px; }
.contact-detail-copy small { color: var(--accent); font-size: .62rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.contact-details strong { color: var(--ink-2); font-size: .8rem; font-weight: 700; }
.contact-actions { display: grid; justify-items: end; gap: 14px; }
.contact-action-links { display: flex; align-items: center; justify-content: flex-end; gap: 20px; flex-wrap: wrap; }
.contact-actions .contact-details { justify-content: flex-end; margin-top: 0; }
footer { display: flex; justify-content: space-between; padding: 23px clamp(24px, 7vw, 105px); border-top: 1px solid var(--line); color: var(--muted); font-size: .76rem; }

.reveal { opacity: 0; transform: translateY(13px); transition: opacity .55s ease var(--delay, 0ms), transform .55s ease var(--delay, 0ms); }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1100px) {
  .section-rail { display: none; }
  .capability-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1000px) {
  .project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .education-layout { grid-template-columns: 1fr; }
  .certifications { max-width: 620px; }
}

@media (max-width: 850px) {
  .site-header nav { gap: 18px; }
  .hero { grid-template-columns: 1fr; min-height: 0; padding: 60px 0 78px; }
  .portrait-wrap { width: min(72vw, 350px); }
  .about-intro { grid-template-columns: 1fr; gap: 26px; }
  .about-copy { max-width: 760px; }
  .section-heading { grid-template-columns: 1fr; gap: 15px; }
  .experience-item { grid-template-columns: 178px minmax(0, 1fr); }
  .organization-logo { grid-column: 1; grid-row: 2; }
  .experience-body { grid-column: 2; grid-row: 1 / span 2; }
  .contact { grid-template-columns: 1fr; }
  .contact-actions { justify-items: start; }
  .contact-action-links, .contact-actions .contact-details { justify-content: flex-start; }
}

@media (max-width: 650px) {
  .site-header { height: 62px; padding: 0 17px; }
  .brand b { font-size: .85rem; }
  .site-header nav { display: none; }
  .hero { width: calc(100% - 40px); gap: 48px; padding-top: 48px; }
  .hero h1 { font-size: clamp(2.8rem, 13vw, 4rem); }
  .hero-actions { gap: 17px; }
  .location-chip { right: 0; }
  .section { padding: 66px 20px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-card { min-height: 0; }
  .project-grid { grid-template-columns: 1fr; }
  .project-card { grid-template-columns: 88px minmax(0, 1fr); min-height: 0; }
  .project-thumb { width: 88px; height: 88px; }
  .compact-tags span:nth-child(n+3) { display: none; }
  .experience-item { grid-template-columns: 1fr; gap: 11px; padding: 20px; }
  .experience-period, .organization-logo, .experience-body { grid-column: 1; grid-row: auto; }
  .organization-logo { width: 145px; height: 78px; align-self: auto; }
  .education-item { grid-template-columns: 82px minmax(0, 1fr); gap: 14px; padding: 16px; }
  .school-logo { width: 82px; height: 68px; }
  .contact { width: calc(100% - 40px); margin-bottom: 50px; padding: 40px 22px; }
  footer { display: block; text-align: center; }
  footer span { display: block; margin: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}