/* =====================================================================
   YARIN LINKER — Portfolio Site
   Aesthetic: neo-engineering blueprint
   ===================================================================== */

:root {
  --bg: #0a0e14;
  --bg-2: #0d1218;
  --paper: #f4ede2;
  --ink: rgba(255, 255, 255, 0.92);
  --ink-2: rgba(255, 255, 255, 0.72);
  --muted: rgba(255, 255, 255, 0.48);
  --muted-2: rgba(255, 255, 255, 0.28);
  --hairline: rgba(255, 255, 255, 0.12);
  --hairline-2: rgba(255, 255, 255, 0.06);
  --grid: rgba(255, 255, 255, 0.035);
  --grid-2: rgba(255, 255, 255, 0.08);

  --accent: #ff7849;     /* engineer's pencil orange */
  --accent-2: #ffb37a;
  --cyan: #6ee7ff;       /* data flow blue */
  --green: #7dd87a;
  --warn: #f59e0b;

  --font-display: "Fraunces", "Frank Ruhl Libre", Georgia, serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --font-he-display: "Frank Ruhl Libre", "Heebo", serif;
  --font-he-body: "Assistant", system-ui, sans-serif;

  --container: 1200px;
  --pad-x: 32px;
}

[lang="he"] {
  --font-display: var(--font-he-display);
  --font-body: var(--font-he-body);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
  overflow-x: hidden;
}

/* The blueprint grid — global background, parallax-free */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: -1px -1px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 100%);
}

body::after {
  /* Subtle vignette + ambient glow at top */
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 50% 30% at 50% 0%, rgba(255, 120, 73, 0.06), transparent 70%),
    radial-gradient(ellipse 60% 40% at 50% 100%, rgba(110, 231, 255, 0.04), transparent 70%);
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; padding: 0; }
img { display: block; max-width: 100%; }

/* =====================================================================
   LAYOUT PRIMITIVES
   ===================================================================== */

.container {
  position: relative;
  z-index: 1;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

section { position: relative; z-index: 1; padding: 96px 0; }
section + section { border-top: 1px solid var(--hairline-2); }

/* Section header: kicker + title + thin rule */
.kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.kicker::before {
  content: "";
  width: 12px; height: 1px;
  background: var(--accent);
}
.section-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(34px, 4.5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 16px 0 24px;
  color: var(--ink);
  text-wrap: balance;
}
[lang="he"] .section-title { letter-spacing: -0.01em; font-weight: 500; }

.section-lead {
  font-size: 18px;
  line-height: 1.6;
  color: var(--ink-2);
  max-width: 720px;
  text-wrap: pretty;
}

/* =====================================================================
   TOP NAV
   ===================================================================== */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(to bottom, rgba(10, 14, 20, 0.85), rgba(10, 14, 20, 0.4));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline-2);
}
.nav-brand {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.nav-brand-mark {
  display: inline-block;
  width: 22px; height: 22px;
  border: 1px solid var(--accent);
  position: relative;
}
.nav-brand-mark::before, .nav-brand-mark::after {
  content: "";
  position: absolute;
  background: var(--accent);
}
.nav-brand-mark::before { left: 50%; top: -3px; bottom: -3px; width: 1px; transform: translateX(-50%); }
.nav-brand-mark::after { top: 50%; left: -3px; right: -3px; height: 1px; transform: translateY(-50%); }

.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
  transition: color 0.2s;
}
.nav-link:hover { color: var(--accent); }
.nav-link .num {
  color: var(--muted);
  margin-inline-end: 6px;
  font-size: 10px;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  border: 1px solid var(--hairline);
  padding: 6px 2px;
  background: rgba(255, 255, 255, 0.02);
}
.lang-toggle button {
  padding: 4px 10px;
  color: var(--muted);
  transition: color 0.2s, background 0.2s;
}
.lang-toggle button.active {
  color: var(--bg);
  background: var(--accent);
}

@media (max-width: 720px) {
  .nav-links .nav-link:not(.lang-toggle-wrap) { display: none; }
}

/* =====================================================================
   HERO
   ===================================================================== */

.hero {
  min-height: 100vh;
  padding: 140px 0 80px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.hero-eyebrow::before {
  content: "";
  display: inline-block;
  width: 32px; height: 1px;
  background: var(--accent);
}

.hero-name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(48px, 8vw, 96px);
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 32px;
  color: var(--ink);
}
[lang="he"] .hero-name { font-weight: 500; letter-spacing: -0.02em; }

.hero-tagline {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(22px, 2.6vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink-2);
  margin: 0 0 28px;
  font-style: italic;
}
.hero-tagline .line { display: block; }
.hero-tagline .line:last-child { color: var(--ink); font-style: normal; font-weight: 400; }
.hero-tagline .line:last-child::after {
  content: "_";
  color: var(--accent);
  animation: blink 1.1s steps(2) infinite;
  margin-inline-start: 4px;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-sub {
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 560px;
  margin: 0 0 36px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--hairline);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.02);
  transition: all 0.2s;
  white-space: nowrap;
}
.btn:hover { border-color: var(--accent); color: var(--accent); background: rgba(255, 120, 73, 0.08); }
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}
.btn-primary:hover { background: var(--accent-2); border-color: var(--accent-2); color: var(--bg); }
.btn .arrow {
  display: inline-block;
  transition: transform 0.2s;
}
[lang="he"] .btn .arrow { transform: scaleX(-1); }
.btn:hover .arrow { transform: translateX(3px); }
[lang="he"] .btn:hover .arrow { transform: translateX(-3px) scaleX(-1); }

.hero-status {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-top: 48px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-status::before {
  content: "";
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 12px var(--green);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.4; } }

/* Hero — right column: portrait slot + corner ticks */
.hero-portrait-wrap {
  position: relative;
  aspect-ratio: 3 / 4;
  width: 100%;
  max-width: 360px;
  margin-inline-start: auto;
}
.hero-portrait {
  position: absolute;
  inset: 0;
  background: var(--bg-2);
  border: 1px solid var(--hairline);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-portrait img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(20%) contrast(1.05); }
.hero-portrait-placeholder {
  font-family: var(--font-display);
  font-size: 72px;
  font-weight: 300;
  color: var(--muted-2);
  letter-spacing: -0.03em;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.02) 25%, transparent 25%) 0 0/16px 16px,
    linear-gradient(225deg, rgba(255,255,255,0.02) 25%, transparent 25%) 0 0/16px 16px,
    var(--bg-2);
}
.hero-portrait-frame {
  position: absolute;
  inset: -8px;
  border: 1px dashed var(--hairline);
  pointer-events: none;
}
.hero-portrait-frame::before, .hero-portrait-frame::after {
  content: "";
  position: absolute;
  background: var(--accent);
}
.hero-portrait-frame::before { left: -1px; top: -1px; width: 16px; height: 1px; box-shadow: 0 16px var(--accent); }
.hero-portrait-frame::after { right: -1px; bottom: -1px; width: 16px; height: 1px; box-shadow: 0 -16px var(--accent); }
.hero-portrait-tag {
  position: absolute;
  bottom: -28px;
  inset-inline-start: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--muted);
  text-transform: uppercase;
  white-space: nowrap;
}
.hero-portrait-tag span { color: var(--accent); }

@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-portrait-wrap { margin-inline: auto; max-width: 280px; }
}