/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  --ink: #151515;
  --paper: #F7F5F0;
  --paper-raised: #FFFFFF;
  --cobalt: #3B5BFF;
  --shipped: #00A86B;
  --caption: #8A8580;
  --line: rgba(21, 21, 21, 0.1);

  --font-display: 'Inter', 'Vazirmatn', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Vazirmatn', monospace;

  --max-width: 780px;
  --gutter: 24px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body[dir="rtl"] {
  font-family: 'Vazirmatn', var(--font-display);
}

a { color: inherit; text-decoration: none; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

section { padding: 88px 0; }

@media (max-width: 640px) {
  section { padding: 56px 0; }
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px var(--gutter);
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav-name {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-toggle {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--caption);
  background: none;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 5px 10px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.lang-toggle:hover,
.lang-toggle:focus-visible {
  color: var(--ink);
  border-color: var(--ink);
}

/* ============================================================
   HERO — the changelog-style opening statement
   ============================================================ */
.hero {
  padding-top: 72px;
  padding-bottom: 64px;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cobalt);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-eyebrow::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--shipped);
  display: inline-block;
  flex-shrink: 0;
}

.hero-headline {
  font-size: clamp(32px, 6vw, 48px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
}

.hero-subhead {
  font-size: 18px;
  color: #4A4640;
  max-width: 560px;
  margin: 0 0 32px;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  border: 1.5px solid var(--ink);
  border-radius: 6px;
  padding: 10px 18px;
  cursor: pointer;
  background: none;
  transition: background 0.15s, color 0.15s;
}

.hero-cta:hover,
.hero-cta:focus-visible {
  background: var(--ink);
  color: var(--paper);
}

body[dir="rtl"] .hero-cta svg { transform: scaleX(-1); }

/* ============================================================
   SECTION HEADINGS
   ============================================================ */
.section-head {
  margin-bottom: 40px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--caption);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 8px;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
}

.section-sub {
  font-size: 15px;
  color: var(--caption);
  margin: 8px 0 0;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about p {
  font-size: 18px;
  margin: 0 0 20px;
  max-width: 640px;
}

.about p:last-child { margin-bottom: 0; }

/* ============================================================
   EXPERIENCE — changelog timeline
   ============================================================ */
.timeline {
  border-top: 1px solid var(--line);
}

.entry {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

@media (max-width: 560px) {
  .entry { grid-template-columns: 1fr; gap: 6px; }
}

.entry-date {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--shipped);
  padding-top: 3px;
  white-space: nowrap;
}

.entry-role {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 2px;
}

.entry-org {
  font-size: 14px;
  color: var(--caption);
  margin: 0 0 12px;
}

.entry-points {
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
}

.entry-points li {
  font-size: 15px;
  color: #3A3630;
  padding-left: 16px;
  position: relative;
  margin-bottom: 6px;
}

body[dir="rtl"] .entry-points li {
  padding-left: 0;
  padding-right: 16px;
}

.entry-points li::before {
  content: '\2013';
  position: absolute;
  left: 0;
  color: var(--caption);
}

body[dir="rtl"] .entry-points li::before {
  left: auto;
  right: 0;
}

.entry-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cobalt);
  background: rgba(59, 91, 255, 0.08);
  border-radius: 4px;
  padding: 3px 8px;
}

/* ============================================================
   SKILLS
   ============================================================ */
.skill-groups {
  display: grid;
  gap: 28px;
}

.skill-group-label {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--caption);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 12px;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tag {
  font-size: 14px;
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 6px 14px;
  background: var(--paper-raised);
}

/* ============================================================
   PROJECTS
   ============================================================ */
.project-subgroup-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--caption);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 16px;
}

.project-cards {
  display: grid;
  gap: 14px;
  margin-bottom: 40px;
}

.project-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px;
}

.project-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.project-name {
  font-size: 17px;
  font-weight: 700;
  margin: 0;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--shipped);
}

.project-desc {
  font-size: 15px;
  color: #3A3630;
  margin: 0 0 12px;
}

.project-stack {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.work-list {
  display: grid;
  gap: 16px;
}

.work-item {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.work-item:first-child { border-top: none; }

.work-name {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 4px;
}

.work-desc {
  font-size: 15px;
  color: var(--caption);
  margin: 0;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 15px;
  border: 1.5px solid var(--ink);
  border-radius: 6px;
  padding: 12px 20px;
  transition: background 0.15s, color 0.15s;
}

.contact-link:hover,
.contact-link:focus-visible {
  background: var(--ink);
  color: var(--paper);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--line);
  padding: 32px 0;
}

.footer-text {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--caption);
  margin: 0;
}

/* ============================================================
   ACCESSIBILITY / MOTION
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--cobalt);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}