:root {
  --mint: #01e68a;
  --mint-ink: #00875f;
  --ink: #212121;
  --ink-soft: #595959;
  --paper: #ffffff;
  --paper-soft: #f7f7f7;
  --border: #ebebeb;
  --max: 1120px;
  --max-narrow: 640px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.08;
  margin: 0 0 0.5em;
}

p {
  margin: 0 0 1.1em;
}

a {
  color: inherit;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
}

.wrap-narrow {
  max-width: var(--max-narrow);
  margin: 0 auto;
  padding: 0 32px;
}

img {
  max-width: 100%;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}

.branding img {
  height: 68px;
  width: auto;
  display: block;
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 32px;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--ink-soft);
  font-family: "Space Grotesk", sans-serif;
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--mint-ink);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  background: var(--paper-soft);
  color: var(--ink);
  padding: 72px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: center;
}

.hero.hero-compact .hero-grid {
  grid-template-columns: 1fr;
}

.hero.hero-compact .hero-grid > div {
  max-width: var(--max-narrow);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--mint-ink);
  margin-bottom: 20px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--mint-ink);
  display: inline-block;
}

.hero h1 {
  font-size: clamp(2.2rem, 4.6vw, 3.5rem);
  color: var(--ink);
  max-width: 640px;
}

.hero h1 .accent {
  color: var(--mint-ink);
}

.hero-lead {
  color: var(--ink-soft);
  font-size: 17px;
  max-width: 480px;
  margin-bottom: 30px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 13px 24px;
  border-radius: 999px;
  text-decoration: none;
}

.btn-primary {
  background: var(--mint);
  color: var(--ink);
}

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--ink);
}

.photo-frame {
  max-width: 340px;
  margin: 0 auto;
}

.profile-photo {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 50%;
}

/* ---------- Section heads ---------- */
.section-head {
  margin-bottom: 40px;
}

.section-head .tag {
  display: inline-block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mint-ink);
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  max-width: 640px;
}

section {
  padding: 84px 0;
}

/* ---------- About ---------- */
.about-lead {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 500;
  font-size: 21px;
  line-height: 1.5;
  color: var(--ink);
  max-width: var(--max-narrow);
}

.about p:not(.about-lead) {
  color: var(--ink-soft);
  font-size: 16px;
  max-width: var(--max-narrow);
}

/* ---------- Services ---------- */
.services-section {
  background: var(--paper-soft);
}

.services {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.services li {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
}

.service-top {
  margin-bottom: 16px;
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(1, 230, 138, 0.12);
  color: var(--mint-ink);
}

.service-icon svg {
  width: 22px;
  height: 22px;
}

.services strong {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 8px;
}

.services span {
  color: var(--ink-soft);
  font-size: 14.5px;
}

/* ---------- Contact ---------- */
.contact-rows {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border);
}

.contact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 4px;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: var(--ink);
}

.contact-row .label {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 500;
  font-size: 16px;
}

.contact-row svg {
  flex: none;
  color: var(--mint-ink);
}

.contact-row .arrow {
  color: var(--ink-soft);
}

.contact-row.static {
  cursor: default;
}

/* ---------- CV: note ---------- */
.cv-note {
  display: inline-block;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  color: var(--ink-soft);
  font-size: 14.5px;
  margin-top: 22px;
}

/* ---------- CV: timeline ---------- */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.timeline li {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}

.timeline li:last-child {
  border-bottom: none;
}

.timeline .years {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--mint-ink);
}

.timeline h3 {
  font-size: 17px;
  margin: 0 0 4px;
}

.timeline p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14.5px;
}

/* ---------- CV: projects ---------- */
.project-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.project-cards li {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 26px;
}

.project-cards h3 {
  font-size: 16px;
  margin: 0 0 10px;
  line-height: 1.35;
}

.project-cards .role {
  color: var(--ink);
}

.project-cards .dot {
  color: var(--ink-soft);
  margin: 0 8px;
  font-weight: 400;
}

.project-cards .domain {
  color: var(--mint-ink);
}

.project-cards p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14.5px;
}

/* ---------- CV: certifications ---------- */
.cert-groups {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.cert-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 15px;
  margin: 0 0 16px;
}

.cert-group-count {
  font-family: "Space Grotesk", sans-serif;
  font-size: 12px;
  font-weight: 600;
  color: var(--mint-ink);
  background: rgba(1, 230, 138, 0.12);
  padding: 3px 10px;
  border-radius: 999px;
}

.cert-cloud {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.cert-cloud li {
  background: var(--paper-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 9px 18px;
  font-size: 13px;
  color: var(--ink-soft);
}

.cert-cloud strong {
  color: var(--ink);
  font-weight: 600;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--paper-soft);
  border-top: 1px solid var(--border);
  padding: 26px 0;
}

.site-footer p {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0;
  text-align: center;
}

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .photo-frame {
    max-width: 260px;
    order: -1;
  }

  section {
    padding: 60px 0;
  }

  .services {
    grid-template-columns: 1fr;
  }

  .project-cards {
    grid-template-columns: 1fr;
  }
}

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

@media (max-width: 680px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 0;
    overflow: hidden;
    background: var(--paper);
    border-bottom: 1px solid var(--border);
    transition: max-height 0.25s ease;
  }

  .site-nav.is-open {
    max-height: 240px;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 8px 32px 18px;
  }

  .site-nav a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
  }

  .site-nav li:last-child a {
    border-bottom: none;
  }
}