/* ==========================================================================
   Tokens
   ========================================================================== */

:root {
  color-scheme: dark;
  --color-bg: #07111d;
  --color-bg-deep: #050c15;
  --color-surface: #0c1928;
  --color-surface-raised: #102237;
  --color-text: #f3f7fb;
  --color-text-soft: #c0cddd;
  --color-text-muted: #8da1b7;
  --color-accent: #69e3c1;
  --color-accent-strong: #8cebd1;
  --color-blue: #7aafff;
  --color-border: rgba(173, 205, 230, 0.16);
  --color-border-strong: rgba(173, 205, 230, 0.28);
  --shadow-card: 0 24px 72px rgba(0, 0, 0, 0.22);
  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --container: 1160px;
  --header-height: 76px;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --transition: 220ms cubic-bezier(0.2, 0.75, 0.25, 1);
}

/* ==========================================================================
   Reset and base
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
  background: var(--color-bg-deep);
}

body {
  min-width: 0;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 85% 7%, rgba(64, 138, 180, 0.12), transparent 30rem),
    radial-gradient(circle at 15% 35%, rgba(55, 180, 145, 0.07), transparent 28rem),
    var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
  max-width: 100%;
}

button,
input,
textarea,
select {
  color: inherit;
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

p,
h1,
h2,
h3,
ul,
ol,
dl,
dd {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.1;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

address {
  font-style: normal;
}

::selection {
  background: var(--color-accent);
  color: var(--color-bg-deep);
}

:focus-visible {
  outline: 3px solid var(--color-accent-strong);
  outline-offset: 4px;
}

.container {
  width: min(calc(100% - 2 * clamp(20px, 5vw, 72px)), var(--container));
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  padding: 0;
  border: 0;
  margin: -1px;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

#main-content:focus,
#top:focus {
  outline: none;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 11px 16px;
  transform: translateY(-160%);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-bg-deep);
  font-weight: 800;
  text-decoration: none;
  transition: transform var(--transition);
}

.skip-link:focus {
  transform: translateY(0);
}

/* ==========================================================================
   Header and navigation
   ========================================================================== */

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  min-height: var(--header-height);
  border-bottom: 1px solid var(--color-border);
  background: rgba(7, 17, 29, 0.94);
}

@supports (backdrop-filter: blur(18px)) {
  .site-header {
    background: rgba(7, 17, 29, 0.76);
    backdrop-filter: blur(18px);
  }
}

.site-header__inner {
  position: relative;
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 12px;
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand__mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid rgba(105, 227, 193, 0.42);
  border-radius: 12px;
  background: linear-gradient(145deg, rgba(105, 227, 193, 0.16), rgba(122, 175, 255, 0.08));
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: -0.07em;
}

.brand__name {
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
}

.site-nav__list {
  display: flex;
  margin: 0;
  padding: 0;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.site-nav__list a {
  display: inline-flex;
  min-height: 44px;
  padding: 10px 12px;
  align-items: center;
  border-radius: 9px;
  color: var(--color-text-soft);
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
  transition: background-color var(--transition), color var(--transition);
}

.site-nav__list a:hover,
.site-nav__list a:focus-visible {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text);
}

.site-nav__list .site-nav__cta {
  margin-left: 6px;
  padding-inline: 17px;
  border: 1px solid rgba(105, 227, 193, 0.38);
  color: var(--color-accent-strong);
}

.site-nav__list .site-nav__cta:hover,
.site-nav__list .site-nav__cta:focus-visible {
  background: var(--color-accent);
  color: var(--color-bg-deep);
}

.menu-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  padding: 6px 8px 6px 12px;
  align-items: center;
  gap: 9px;
  border: 1px solid var(--color-border-strong);
  border-radius: 10px;
  background: var(--color-surface);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
}

.menu-toggle__icon {
  position: relative;
  display: block;
  width: 20px;
  height: 16px;
}

.menu-toggle__icon span {
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: top var(--transition), transform var(--transition);
}

.menu-toggle__icon span:first-child {
  top: 4px;
}

.menu-toggle__icon span:last-child {
  top: 10px;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon span:first-child {
  top: 7px;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon span:last-child {
  top: 7px;
  transform: rotate(-45deg);
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  display: grid;
  min-height: calc(100svh - var(--header-height));
  overflow: hidden;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
}

.hero::before {
  position: absolute;
  top: 8%;
  right: -10rem;
  width: 34rem;
  height: 34rem;
  border: 1px solid rgba(105, 227, 193, 0.13);
  border-radius: 50%;
  box-shadow:
    0 0 0 5rem rgba(105, 227, 193, 0.025),
    0 0 0 10rem rgba(122, 175, 255, 0.018);
  content: "";
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(173, 205, 230, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(173, 205, 230, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 84%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  display: grid;
  padding-block: clamp(72px, 10vw, 132px);
  align-items: center;
  gap: clamp(48px, 8vw, 112px);
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
}

.availability {
  display: inline-flex;
  margin-bottom: 28px;
  align-items: center;
  gap: 9px;
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.availability span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 5px rgba(105, 227, 193, 0.1);
}

.hero__role {
  margin-bottom: 16px;
  color: var(--color-blue);
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2vw, 1.05rem);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.hero h1 {
  max-width: 820px;
  margin-bottom: 28px;
  font-size: clamp(3.2rem, 7vw, 6.7rem);
  font-weight: 820;
  letter-spacing: -0.07em;
}

.hero h1 span {
  color: var(--color-text-soft);
  font-size: 0.62em;
  letter-spacing: -0.055em;
}

.hero__lead {
  max-width: 700px;
  margin-bottom: 34px;
  color: var(--color-text-soft);
  font-size: clamp(1.08rem, 1.6vw, 1.28rem);
  line-height: 1.65;
}

.hero__actions {
  display: flex;
  margin-bottom: 38px;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  padding: 12px 20px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 11px;
  font-weight: 750;
  text-decoration: none;
  transition: transform var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition);
}

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

.button--primary {
  background: var(--color-accent);
  color: var(--color-bg-deep);
  box-shadow: 0 12px 30px rgba(105, 227, 193, 0.13);
}

.button--primary:hover,
.button--primary:focus-visible {
  background: var(--color-accent-strong);
}

.button--secondary {
  border-color: var(--color-border-strong);
  background: rgba(255, 255, 255, 0.025);
  color: var(--color-text);
}

.button--secondary:hover,
.button--secondary:focus-visible {
  border-color: rgba(122, 175, 255, 0.48);
  background: rgba(122, 175, 255, 0.08);
}

.hero__meta {
  display: flex;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
  gap: 10px 22px;
  color: var(--color-text-muted);
  font-size: 0.88rem;
  list-style: none;
}

.hero__meta li {
  position: relative;
}

.hero__meta li:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -13px;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-border-strong);
  content: "";
}

.metrics {
  position: relative;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, rgba(16, 34, 55, 0.92), rgba(8, 20, 33, 0.9));
  box-shadow: var(--shadow-card);
}

.metrics::before {
  position: absolute;
  top: -1px;
  left: 12%;
  width: 40%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  content: "";
}

.metrics__caption {
  margin-bottom: 18px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.metrics__grid {
  display: grid;
  margin: 0;
  padding: 0;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  list-style: none;
}

.metric {
  min-height: 150px;
  padding: 19px;
  border: 1px solid var(--color-border);
  border-radius: 15px;
  background: rgba(4, 12, 21, 0.38);
}

.metric--wide {
  min-height: auto;
  grid-column: 1 / -1;
}

.metric__value {
  display: flex;
  margin-bottom: 12px;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 3vw, 2.05rem);
  line-height: 1.2;
}

.metric__value span:first-child {
  color: var(--color-text-muted);
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}

.metric__value strong {
  color: var(--color-accent-strong);
  font-weight: 750;
}

.metric__value--compact {
  font-size: clamp(1.05rem, 2.2vw, 1.55rem);
  line-height: 1.3;
}

.metric__arrow {
  color: var(--color-blue);
  text-decoration: none;
}

.metric > p:last-child {
  margin-bottom: 0;
  color: var(--color-text-soft);
  font-size: 0.87rem;
  line-height: 1.5;
}

.metrics__footer {
  display: flex;
  margin: 20px 0 0;
  align-items: flex-start;
  gap: 10px;
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

.metrics__footer span {
  width: 7px;
  height: 7px;
  margin-top: 0.48em;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ==========================================================================
   Sections and shared components
   ========================================================================== */

.section {
  padding-block: clamp(86px, 11vw, 144px);
  border-bottom: 1px solid var(--color-border);
}

.section--tinted {
  background: rgba(5, 13, 22, 0.54);
}

.section-grid {
  display: grid;
  align-items: start;
  gap: clamp(44px, 8vw, 120px);
  grid-template-columns: minmax(240px, 0.75fr) minmax(0, 1.35fr);
}

.section-heading {
  position: relative;
}

.section-heading--row {
  display: flex;
  margin-bottom: clamp(44px, 6vw, 72px);
  align-items: end;
  justify-content: space-between;
  gap: 40px;
}

.section-heading--row > p {
  max-width: 430px;
  margin-bottom: 4px;
  color: var(--color-text-muted);
}

.section-index {
  margin-bottom: 16px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.section-heading h2,
.contacts h2 {
  max-width: 720px;
  margin-bottom: 0;
  font-size: clamp(2.3rem, 5vw, 4.7rem);
  font-weight: 800;
  letter-spacing: -0.055em;
}

.about-copy {
  max-width: 760px;
  color: var(--color-text-soft);
  font-size: 1.02rem;
}

.about-copy > p {
  max-width: 68ch;
  margin-bottom: 22px;
}

.about-copy .lead-copy {
  color: var(--color-text);
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  line-height: 1.55;
}

.focus-note {
  margin-top: 42px;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: rgba(16, 34, 55, 0.45);
}

.focus-note__title {
  margin-bottom: 13px;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.focus-note ul {
  display: grid;
  margin: 0;
  padding: 0;
  gap: 9px 28px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  list-style: none;
}

.focus-note li {
  position: relative;
  padding-left: 18px;
}

.focus-note li::before {
  position: absolute;
  top: 0.68em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-blue);
  content: "";
}

/* ==========================================================================
   Competencies
   ========================================================================== */

.competency-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.competency {
  min-height: 255px;
  padding: clamp(24px, 3vw, 32px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: linear-gradient(155deg, rgba(16, 34, 55, 0.54), rgba(8, 20, 33, 0.45));
  transition: transform var(--transition), border-color var(--transition), background-color var(--transition);
}

.competency:hover {
  transform: translateY(-4px);
  border-color: rgba(105, 227, 193, 0.3);
}

.competency__number {
  margin-bottom: 42px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.competency h3 {
  margin-bottom: 14px;
  font-size: 1.18rem;
  letter-spacing: -0.025em;
}

.competency > p:last-child {
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 0.93rem;
}

/* ==========================================================================
   Experience timeline
   ========================================================================== */

.timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 0 0 auto;
  padding: 0;
  list-style: none;
}

.timeline::before {
  position: absolute;
  top: 12px;
  bottom: 12px;
  left: 7px;
  width: 1px;
  background: linear-gradient(var(--color-accent), var(--color-border) 20%, var(--color-border) 85%, transparent);
  content: "";
}

.timeline__item {
  position: relative;
  padding: 0 0 34px 48px;
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__marker {
  position: absolute;
  z-index: 1;
  top: 37px;
  left: 0;
  width: 15px;
  height: 15px;
  border: 4px solid var(--color-bg);
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 1px rgba(105, 227, 193, 0.4);
}

.experience-card {
  padding: clamp(25px, 4vw, 42px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: rgba(12, 25, 40, 0.68);
  transition: border-color var(--transition), background-color var(--transition);
}

.experience-card:hover {
  border-color: var(--color-border-strong);
  background: rgba(16, 34, 55, 0.72);
}

.experience-card__header {
  display: flex;
  margin-bottom: 26px;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
}

.experience-card__date {
  margin-bottom: 12px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.experience-card h3 {
  margin-bottom: 8px;
  font-size: clamp(1.45rem, 3vw, 2.15rem);
  letter-spacing: -0.035em;
}

.experience-card__role {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.status {
  display: inline-flex;
  min-height: 32px;
  max-width: 100%;
  padding: 5px 11px;
  align-items: center;
  flex: 0 1 auto;
  border: 1px solid rgba(105, 227, 193, 0.3);
  border-radius: 999px;
  background: rgba(105, 227, 193, 0.07);
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-align: center;
  text-transform: uppercase;
}

.status--closed {
  border-color: rgba(173, 205, 230, 0.2);
  background: rgba(173, 205, 230, 0.05);
  color: var(--color-text-soft);
}

.status--development {
  border-color: rgba(122, 175, 255, 0.32);
  background: rgba(122, 175, 255, 0.07);
  color: #a9c9ff;
}

.experience-card__intro {
  max-width: 78ch;
  margin-bottom: 22px;
  color: var(--color-text-soft);
}

.experience-card__list {
  display: grid;
  max-width: 82ch;
  margin: 0 0 28px;
  padding: 0;
  gap: 12px;
  color: var(--color-text-soft);
  list-style: none;
}

.experience-card__list li {
  position: relative;
  padding-left: 21px;
}

.experience-card__list li::before {
  position: absolute;
  top: 0.68em;
  left: 0;
  width: 7px;
  height: 7px;
  border: 1px solid var(--color-accent);
  border-radius: 2px;
  content: "";
  transform: rotate(45deg);
}

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

.chip-list li {
  padding: 5px 9px;
  border: 1px solid var(--color-border);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.025);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

/* ==========================================================================
   Cases and own project
   ========================================================================== */

.case-grid {
  display: grid;
  margin-bottom: 18px;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.case-card {
  position: relative;
  min-height: 340px;
  overflow: hidden;
  padding: clamp(25px, 3vw, 34px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgba(12, 25, 40, 0.68);
}

.case-card--accent {
  background: linear-gradient(155deg, rgba(32, 91, 84, 0.42), rgba(12, 25, 40, 0.82));
}

.case-card::after {
  position: absolute;
  right: -60px;
  bottom: -80px;
  width: 190px;
  height: 190px;
  border: 1px solid rgba(105, 227, 193, 0.1);
  border-radius: 50%;
  content: "";
}

.case-card__tag {
  margin-bottom: 42px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.case-card__metric {
  margin-bottom: 21px;
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4vw, 3.3rem);
  font-weight: 750;
  letter-spacing: -0.06em;
  line-height: 1;
}

.case-card__metric--compact {
  font-size: clamp(1.65rem, 3vw, 2.5rem);
  line-height: 1.12;
}

.case-card h3 {
  margin-bottom: 13px;
  font-size: 1.2rem;
}

.case-card > p:last-of-type {
  position: relative;
  z-index: 1;
  margin-bottom: 0;
  color: var(--color-text-soft);
  font-size: 0.93rem;
}

.own-project {
  position: relative;
  display: grid;
  padding: clamp(28px, 4vw, 44px);
  align-items: start;
  gap: 30px 50px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(110deg, rgba(16, 34, 55, 0.8), rgba(9, 22, 36, 0.62));
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
}

.own-project h3 {
  margin-bottom: 0;
  font-size: clamp(1.7rem, 3.4vw, 2.7rem);
  letter-spacing: -0.045em;
}

.own-project__body {
  padding-right: 100px;
  color: var(--color-text-soft);
}

.own-project__body > p {
  max-width: 65ch;
  margin-bottom: 14px;
}

.own-project .status {
  position: absolute;
  top: 28px;
  right: 28px;
}

/* ==========================================================================
   Education
   ========================================================================== */

.education-card {
  padding: clamp(28px, 5vw, 50px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: rgba(12, 25, 40, 0.68);
}

.education-card__year {
  margin-bottom: 22px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.education-card h3 {
  max-width: 640px;
  margin-bottom: 10px;
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  letter-spacing: -0.035em;
}

.education-card__institution {
  max-width: 680px;
  margin-bottom: 36px;
  color: var(--color-text-soft);
  font-size: 1.05rem;
}

.education-card__details {
  display: grid;
  margin-bottom: 0;
  gap: 22px 32px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.education-card__details div {
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
}

.education-card dt {
  margin-bottom: 6px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.education-card dd {
  margin-bottom: 0;
  color: var(--color-text-soft);
}

/* ==========================================================================
   Technology stack
   ========================================================================== */

.stack-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stack-group {
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgba(12, 25, 40, 0.55);
}

.stack-group h3 {
  margin-bottom: 22px;
  color: var(--color-text);
  font-size: 1rem;
  letter-spacing: -0.015em;
}

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

.stack-group li {
  padding: 6px 9px;
  border-radius: 7px;
  background: rgba(122, 175, 255, 0.07);
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

/* ==========================================================================
   Contacts and footer
   ========================================================================== */

.contacts {
  padding-bottom: clamp(72px, 9vw, 112px);
  background:
    radial-gradient(circle at 15% 85%, rgba(105, 227, 193, 0.1), transparent 24rem),
    var(--color-bg);
}

.contacts__inner {
  display: grid;
  gap: 50px;
}

.contacts__inner > div:first-child {
  display: grid;
  align-items: end;
  gap: 36px;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
}

.contacts__inner > div:first-child > p:last-child {
  max-width: 560px;
  margin-bottom: 4px;
  color: var(--color-text-soft);
  font-size: 1.05rem;
}

.contact-primary {
  padding-block: 30px;
  border-block: 1px solid var(--color-border);
}

.contact-primary p {
  margin-bottom: 12px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.contact-primary a {
  display: inline-flex;
  min-height: 44px;
  max-width: 100%;
  align-items: center;
  color: var(--color-accent-strong);
  font-size: clamp(1.8rem, 6vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 1.12;
  overflow-wrap: anywhere;
  text-decoration-color: rgba(105, 227, 193, 0.35);
  transition: color var(--transition), text-decoration-color var(--transition);
}

.contact-primary a:hover,
.contact-primary a:focus-visible {
  color: var(--color-text);
  text-decoration-color: var(--color-accent);
}

.contact-list {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.contact-list a {
  display: grid;
  min-height: 112px;
  padding: 22px;
  align-content: space-between;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgba(12, 25, 40, 0.6);
  text-decoration: none;
  transition: transform var(--transition), border-color var(--transition), background-color var(--transition);
}

.contact-list a:hover,
.contact-list a:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(105, 227, 193, 0.34);
  background: rgba(16, 34, 55, 0.78);
}

.contact-list span,
.work-format span {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.contact-list strong {
  font-size: 1rem;
  overflow-wrap: anywhere;
}

.work-format {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 44px;
  color: var(--color-text-soft);
}

.work-format p {
  display: flex;
  margin: 0;
  flex-direction: column;
  gap: 4px;
}

.site-footer {
  padding-block: 24px;
  background: var(--color-bg-deep);
}

.site-footer__inner {
  display: flex;
  min-height: 44px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 7px;
  color: var(--color-text-soft);
  font-weight: 700;
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--color-accent);
}

/* ==========================================================================
   Progressive reveal
   ========================================================================== */

.motion-ready [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 520ms ease, transform 520ms cubic-bezier(0.2, 0.75, 0.25, 1);
}

.motion-ready [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1040px) {
  .brand__name {
    display: none;
  }

  .hero__inner {
    gap: 44px;
    grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.75fr);
  }

  .competency-grid,
  .stack-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-card:last-child {
    grid-column: 1 / -1;
    min-height: 260px;
  }
}

@media (max-width: 800px) {
  :root {
    --header-height: 68px;
  }

  .brand__name {
    display: inline;
  }

  .site-nav__list {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .js .menu-toggle {
    display: inline-flex;
  }

  .js .site-nav__list {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    display: none;
    width: min(360px, calc(100vw - 40px));
    padding: 10px;
    border: 1px solid var(--color-border-strong);
    border-radius: 15px;
    background: #0b1928;
    box-shadow: var(--shadow-card);
  }

  .js .site-nav__list.is-open {
    display: grid;
  }

  .js .site-nav__list a {
    width: 100%;
    padding-inline: 14px;
  }

  .js .site-nav__list .site-nav__cta {
    margin: 4px 0 0;
    justify-content: center;
  }

  .hero {
    min-height: auto;
  }

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

  .hero__content {
    max-width: 760px;
  }

  .metrics {
    max-width: 680px;
  }

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

  .section-heading--row {
    display: grid;
    gap: 24px;
  }

  .section-heading--row > p {
    max-width: 620px;
  }

  .timeline {
    margin-left: 0;
  }

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

  .own-project__body {
    padding-right: 0;
  }

  .own-project .status {
    position: static;
    width: max-content;
  }

  .contacts__inner > div:first-child {
    grid-template-columns: 1fr;
  }

  .contact-list {
    grid-template-columns: 1fr;
  }

  .contact-list a {
    min-height: 96px;
  }
}

@media (max-width: 620px) {
  .brand__name {
    display: none;
  }

  .hero__inner {
    padding-block: 62px 80px;
  }

  .availability {
    margin-bottom: 24px;
    letter-spacing: 0.035em;
  }

  .hero h1 {
    font-size: clamp(2.8rem, 14vw, 4.6rem);
  }

  .hero h1 span {
    font-size: 0.56em;
  }

  .hero__actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .hero__meta {
    display: grid;
    gap: 7px;
  }

  .hero__meta li::after {
    display: none;
  }

  .metrics__grid,
  .competency-grid,
  .case-grid,
  .stack-grid,
  .education-card__details {
    grid-template-columns: 1fr;
  }

  .metric--wide,
  .case-card:last-child {
    grid-column: auto;
  }

  .metric {
    min-height: auto;
  }

  .focus-note ul {
    grid-template-columns: 1fr;
  }

  .competency {
    min-height: auto;
  }

  .competency__number,
  .case-card__tag {
    margin-bottom: 28px;
  }

  .timeline__item {
    padding-left: 30px;
  }

  .timeline__marker {
    top: 31px;
  }

  .experience-card__header {
    display: grid;
    gap: 16px;
  }

  .status {
    width: fit-content;
  }

  .case-card {
    min-height: 280px;
  }

  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 380px) {
  .menu-toggle__label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .menu-toggle {
    padding-inline: 11px;
  }
}

/* ==========================================================================
   Accessibility preferences
   ========================================================================== */

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .button:hover,
  .competency:hover,
  .contact-list a:hover {
    transform: none;
  }
}

@media (forced-colors: active) {
  .brand__mark,
  .metric,
  .competency,
  .experience-card,
  .case-card,
  .own-project,
  .education-card,
  .stack-group,
  .contact-list a {
    border: 1px solid CanvasText;
  }

  .availability span,
  .metrics__footer span,
  .focus-note li::before,
  .timeline__marker {
    background: Highlight;
  }
}