/* ---------- Кнопки ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  min-height: 2.9rem;
  padding: 0.7rem 1.3rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: var(--fs-sm);
  text-decoration: none;
  border: 1px solid transparent;
  transition: background-color var(--dur) ease, color var(--dur) ease, border-color var(--dur) ease, translate var(--dur) var(--ease), box-shadow var(--dur) ease;
}
.btn svg { width: 1.1rem; height: 1.1rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.btn:hover { translate: 0 -1px; }
.btn--primary { background: var(--accent); color: #fff; box-shadow: 0 6px 18px -8px var(--accent); }
.btn--primary:hover { background: var(--accent-strong); color: #fff; }
.btn--ghost { color: var(--text); border-color: var(--border-strong); background: var(--surface); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent-text); }

/* ---------- Переключатели в хедере ---------- */
.lang-toggle,
.theme-toggle,
.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 2.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  transition: border-color var(--dur) ease, color var(--dur) ease, background-color var(--dur) ease;
}
.lang-toggle:hover, .theme-toggle:hover, .menu-toggle:hover { border-color: var(--border-strong); color: var(--text); }

.lang-toggle {
  gap: 0.3rem;
  padding-inline: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
}
.lang-toggle__sep { color: var(--text-3); }
.lang-toggle__opt { color: var(--text-3); transition: color var(--dur) ease; }
:root[data-lang="ru"] .lang-toggle__opt[data-lang-opt="ru"],
:root[data-lang="en"] .lang-toggle__opt[data-lang-opt="en"] { color: var(--accent-text); }

.theme-toggle { width: 2.4rem; position: relative; }
.theme-toggle__icon {
  position: absolute;
  width: 1.15rem; height: 1.15rem;
  fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
  transition: opacity var(--dur) ease, rotate 400ms var(--ease), scale var(--dur) ease;
}
/* По умолчанию (светлая) показываем луну, в тёмной — солнце */
.theme-toggle__icon--sun { opacity: 0; rotate: -90deg; scale: 0.6; }
.theme-toggle__icon--moon { opacity: 1; rotate: 0deg; scale: 1; }
:root[data-theme="dark"] .theme-toggle__icon--sun { opacity: 1; rotate: 0deg; scale: 1; }
:root[data-theme="dark"] .theme-toggle__icon--moon { opacity: 0; rotate: 90deg; scale: 0.6; }
@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] .theme-toggle__icon--sun { opacity: 1; rotate: 0deg; scale: 1; }
  :root[data-theme="auto"] .theme-toggle__icon--moon { opacity: 0; rotate: 90deg; scale: 0.6; }
}

.menu-toggle { width: 2.4rem; flex-direction: column; gap: 4px; }
.menu-toggle__bar {
  width: 16px; height: 2px; border-radius: 2px;
  background: currentColor;
  transition: translate var(--dur) var(--ease), rotate var(--dur) var(--ease), opacity var(--dur) ease;
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) { translate: 0 6px; rotate: 45deg; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) { translate: 0 -6px; rotate: -45deg; }
@media (min-width: 900px) { .menu-toggle { display: none; } }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: clip;
  padding-block: clamp(3.5rem, 2.5rem + 4vw, 6rem) clamp(3rem, 2rem + 3vw, 5rem);
}
.hero__bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(42rem 28rem at 15% 10%, var(--hero-glow-1), transparent 70%),
    radial-gradient(36rem 26rem at 90% 80%, var(--hero-glow-2), transparent 70%);
}
.hero__bg::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border) 1px, transparent 1px);
  background-size: 3rem 3rem;
  mask-image: radial-gradient(ellipse at 50% 0%, rgb(0 0 0 / 0.5), transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, rgb(0 0 0 / 0.5), transparent 70%);
  opacity: 0.6;
}
.hero__inner { max-width: 54rem; }
.hero__eyebrow {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block-end: var(--sp-5);
}
.hero__eyebrow span {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--accent-text);
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-pill);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  white-space: nowrap;
}
.hero__title {
  /* Имя и фамилия всегда в одну строку: размер зависит от ширины вьюпорта */
  font-size: clamp(1.5rem, 8vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  white-space: nowrap;
  text-wrap: nowrap;
  margin-block-end: var(--sp-5);
}
.hero__lead {
  font-size: var(--fs-lg);
  line-height: var(--lh-snug);
  color: var(--text-2);
  max-width: 44rem;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-block: var(--sp-6);
}
/* На узких экранах все три кнопки в одну строку */
@media (max-width: 639.98px) {
  .hero__actions { flex-wrap: nowrap; gap: 0.5rem; }
  .hero__actions > .btn, .hero__actions > .share { flex: 1 1 auto; min-width: 0; }
  .hero__actions > .share { display: flex; position: static; }
  /* Меню «Поделиться» растягиваем на всю ширину ряда кнопок, чтобы не выходило за viewport */
  .hero__actions { position: relative; }
  .hero__actions .share__menu { inset-inline: 0; min-width: 0; }
  .hero__actions .btn { flex: 1 1 auto; padding-inline: 0.5rem; gap: 0.35rem; white-space: nowrap; }
  .hero__actions .btn svg { width: 1rem; height: 1rem; flex-shrink: 0; }
}
@media (max-width: 379.98px) {
  .hero__actions { gap: 0.4rem; }
  .hero__actions .btn { font-size: 0.78rem; padding-inline: 0.4rem; gap: 0.3rem; }
}
.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3) var(--sp-6);
  list-style: none;
  padding-block-start: var(--sp-5);
  border-top: 1px solid var(--border);
  color: var(--text-2);
  font-size: var(--fs-sm);
}
.hero__facts strong { color: var(--text); font-weight: 700; }

/* ---------- About ---------- */
.about {
  display: grid;
  gap: var(--sp-6);
  align-items: start;
}
@media (min-width: 900px) {
  .about { grid-template-columns: minmax(0, 1.5fr) minmax(18rem, 1fr); gap: var(--sp-8); }
}
.about__text { font-size: var(--fs-base); color: var(--text-2); max-width: 44rem; }
.about__text p { margin-block-end: var(--sp-4); }
.about__card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  box-shadow: var(--shadow-sm);
}
.facts { margin: 0; display: grid; gap: var(--sp-3); }
.facts > div {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: var(--sp-3);
  padding-block-end: var(--sp-3);
  border-bottom: 1px solid var(--border);
  font-size: var(--fs-sm);
}
.facts > div:last-child { border-bottom: 0; padding-block-end: 0; }
.facts dt { color: var(--text-3); font-weight: 500; }
.facts dd { margin: 0; color: var(--text); font-weight: 500; }

/* ---------- Skills ---------- */
.skills-grid {
  display: grid;
  gap: var(--sp-4);
}
@media (min-width: 760px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .skill-card--primary { grid-column: 1 / -1; }
}
@media (min-width: 1100px) {
  .skills-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .skill-card--primary { grid-column: auto; }
}
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  box-shadow: var(--shadow-sm);
}
.skill-card--primary { border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }
.skill-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  margin-block-end: var(--sp-4);
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
}
.chips li {
  font-size: var(--fs-xs);
  font-weight: 500;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-2);
  white-space: nowrap;
}

.tag {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  color: var(--text-2);
  white-space: nowrap;
}
.tag--accent { background: var(--accent-soft); color: var(--accent-text); }
.tag--fe { background: color-mix(in srgb, var(--fe) 14%, transparent); color: var(--fe); }
.tag--be { background: color-mix(in srgb, var(--be) 14%, transparent); color: var(--be); }
.tag--ops { background: color-mix(in srgb, var(--ops) 14%, transparent); color: var(--ops); }

/* ---------- Experience / Timeline ---------- */
.timeline {
  list-style: none;
  position: relative;
  display: grid;
  gap: var(--sp-7);
}
.timeline::before {
  content: "";
  position: absolute;
  inset-block: 0.5rem;
  inset-inline-start: 0.55rem;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--border));
}
.timeline__item { position: relative; padding-inline-start: 2.5rem; }
.timeline__marker {
  position: absolute;
  inset-inline-start: 0;
  top: 0.45rem;
  width: 1.2rem; height: 1.2rem;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px var(--bg);
}
@media (min-width: 900px) {
  .timeline::before { inset-inline-start: 0.55rem; }
}

.job__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--sp-2) var(--sp-5);
  margin-block-end: var(--sp-3);
}
.job__role { font-size: var(--fs-xl); }
.job__company { color: var(--text-2); font-size: var(--fs-sm); margin-block-start: var(--sp-1); }
.job__company a { color: var(--text); font-weight: 600; text-decoration: none; }
.job__company a:hover { color: var(--accent-text); }
.job__sep { margin-inline: 0.35rem; color: var(--text-3); }
.job__dates {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--text-2);
  white-space: nowrap;
}
@media (min-width: 640px) { .job__dates { align-items: flex-end; text-align: end; } }
.job__duration { font-size: var(--fs-xs); color: var(--text-3); }
.job__intro { color: var(--text-2); max-width: 52rem; margin-block-end: var(--sp-5); }
.job__body ul,
.project__body ul {
  list-style: none;
  display: grid;
  gap: var(--sp-2);
  margin-block: var(--sp-2) var(--sp-4);
}
.job__body li,
.project__body li {
  position: relative;
  padding-inline-start: 1.3rem;
  color: var(--text-2);
  font-size: var(--fs-sm);
}
.job__body li::before,
.project__body li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: 0.62em;
  width: 0.45rem; height: 0.45rem;
  border-radius: 2px;
  background: var(--accent);
  opacity: 0.8;
}
.project__body h4 { margin-block-start: var(--sp-4); color: var(--text); }
.project__body > p:first-child { color: var(--text-2); font-size: var(--fs-sm); }
.project__stack {
  font-size: var(--fs-xs);
  color: var(--text-3);
  line-height: 1.6;
  padding-block-start: var(--sp-3);
  border-top: 1px dashed var(--border);
}
.project__stack span { color: var(--text-2); font-weight: 600; }

/* Карточки проектов (details) */
.projects { display: grid; gap: var(--sp-3); }
.project {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--dur) ease, box-shadow var(--dur) ease;
}
.project[open] { border-color: var(--border-strong); box-shadow: var(--shadow-md); }
.project__summary {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "client chevron"
    "name chevron"
    "tags chevron";
  gap: 0.3rem var(--sp-3);
  align-items: center;
  padding: var(--sp-4) var(--sp-5);
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.project__summary::-webkit-details-marker { display: none; }
.project__summary:hover .project__name { color: var(--accent-text); }
.project__client { grid-area: client; font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--text-3); letter-spacing: 0.04em; }
.project__name { grid-area: name; font-weight: 600; font-size: var(--fs-base); color: var(--text); transition: color var(--dur) ease; }
.project__tags { grid-area: tags; display: flex; flex-wrap: wrap; gap: 0.35rem; margin-block-start: 0.2rem; }
.project__chevron {
  grid-area: chevron;
  width: 1.6rem; height: 1.6rem;
  border-radius: 50%;
  border: 1px solid var(--border);
  position: relative;
  transition: rotate 300ms var(--ease), background-color var(--dur) ease;
}
.project__chevron::before {
  content: "";
  position: absolute; inset: 0; margin: auto;
  width: 0.45rem; height: 0.45rem;
  border-inline-end: 2px solid var(--text-2);
  border-block-end: 2px solid var(--text-2);
  rotate: 45deg;
  translate: 0 -2px;
}
.project[open] .project__chevron { rotate: 180deg; background: var(--accent-soft); border-color: transparent; }
.project__body {
  padding: 0 var(--sp-5) var(--sp-5);
  border-top: 1px solid var(--border);
  padding-block-start: var(--sp-4);
}
@media (min-width: 760px) {
  .project__summary {
    grid-template-columns: 1fr auto auto;
    grid-template-areas:
      "client tags chevron"
      "name tags chevron";
  }
  .project__tags { justify-content: flex-end; margin: 0; }
}

/* ---------- Highlights ---------- */
.highlights {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
}
@media (min-width: 900px) { .highlights { grid-template-columns: repeat(3, 1fr); } }
.hl-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  display: grid;
  gap: var(--sp-3);
  align-content: start;
  box-shadow: var(--shadow-sm);
  transition: translate var(--dur) var(--ease), box-shadow var(--dur) ease, border-color var(--dur) ease;
}
.hl-card:hover { translate: 0 -3px; box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.hl-card__icon {
  display: inline-grid; place-items: center;
  width: 2.6rem; height: 2.6rem;
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  font-size: 1.25rem;
}
.hl-card h3 { font-size: var(--fs-base); }
.hl-card p { color: var(--text-2); font-size: var(--fs-sm); }

/* ---------- Education ---------- */
.edu-grid {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
}
.edu-card {
  padding: var(--sp-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  display: grid;
  gap: var(--sp-2);
  align-content: start;
}
.edu-card__year { font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--accent-text); }
.edu-card h3 { font-size: var(--fs-base); }
.edu-card p:not(.edu-card__year) { color: var(--text-2); font-size: var(--fs-sm); }
.edu-card__link { font-size: var(--fs-sm); font-weight: 600; text-decoration: none; margin-block-start: var(--sp-1); }
.edu-card__link:hover { text-decoration: underline; }

/* ---------- Contact ---------- */
.section--contact { padding-block-end: calc(var(--section-gap) + 1rem); }
.contact {
  display: grid;
  gap: var(--sp-6);
  padding: clamp(1.5rem, 1rem + 2.5vw, 3rem);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(30rem 20rem at 100% 0%, var(--hero-glow-2), transparent 70%),
    var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}
@media (min-width: 900px) {
  .contact { grid-template-columns: 1.1fr 1fr; align-items: center; gap: var(--sp-8); }
}
.contact__text { display: grid; gap: var(--sp-4); justify-items: start; }
.contact__text p { color: var(--text-2); max-width: 32rem; }
.contact__list { list-style: none; display: grid; gap: var(--sp-2); }
.contact__item {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas: "icon label" "icon value";
  column-gap: var(--sp-3);
  align-items: center;
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg);
  text-decoration: none;
  color: var(--text);
  transition: border-color var(--dur) ease, background-color var(--dur) ease, translate var(--dur) var(--ease);
}
.contact__item:hover { border-color: var(--accent); background: var(--accent-soft); translate: 2px 0; color: var(--text); }
.contact__icon {
  grid-area: icon;
  display: grid; place-items: center;
  width: 2.4rem; height: 2.4rem;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--accent-text);
}
.contact__icon svg { width: 1.15rem; height: 1.15rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.contact__label { grid-area: label; font-size: var(--fs-xs); color: var(--text-3); }
.contact__value { grid-area: value; font-weight: 600; font-size: var(--fs-sm); word-break: break-word; }

/* ---------- Share menu + toast ---------- */
.share { position: relative; }
.share__btn svg { fill: none; }
.share__btn[aria-expanded="true"] { border-color: var(--accent); color: var(--accent-text); }
.share__menu {
  position: absolute;
  inset-inline-start: 0;
  top: calc(100% + 0.5rem);
  z-index: 20;
  min-width: 17rem;
  padding: 0.4rem;
  display: grid;
  gap: 0.15rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  opacity: 0;
  translate: 0 -4px;
  transition: opacity var(--dur) var(--ease), translate var(--dur) var(--ease);
}
.share__menu[hidden] { display: none; }
.share__menu.is-open { opacity: 1; translate: 0 0; }
.share__item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  text-align: start;
  transition: background-color var(--dur) ease, color var(--dur) ease;
}
.share__item:hover, .share__item:focus-visible { background: var(--accent-soft); color: var(--accent-text); outline: none; }
.share__item svg { width: 1.1rem; height: 1.1rem; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; color: var(--text-3); }
.share__item:hover svg, .share__item:focus-visible svg { color: var(--accent-text); }

.toast {
  position: fixed;
  inset-inline: 0;
  bottom: 1.5rem;
  z-index: 60;
  width: max-content;
  max-width: calc(100% - 2rem);
  margin-inline: auto;
  padding: 0.7rem 1.1rem;
  border-radius: var(--radius-pill);
  background: var(--text);
  color: var(--bg);
  font-size: var(--fs-sm);
  font-weight: 500;
  box-shadow: var(--shadow-md);
  opacity: 0;
  translate: 0 8px;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease), translate var(--dur) var(--ease);
}
.toast.is-visible { opacity: 1; translate: 0 0; }