/*
  Портфолио продуктового дизайнера.
  Палитра — токены в духе shadcn/ui (тема zinc): --background, --foreground,
  --card, --card-foreground, --muted, --muted-foreground, --border,
  --primary, --primary-foreground, --radius.
  Тема переключается сменой класса .dark на <html> (см. инлайн-скрипт в <head>).
*/

/* ---------- Шрифты (self-hosted, без внешних CDN) ---------- */

@font-face {
  font-family: "Inter";
  src: url("/fonts/InterVariable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* ---------- Токены цвета и радиуса ---------- */

:root {
  --background: 0 0% 100%;
  --foreground: 240 10% 3.9%;
  --card: 0 0% 100%;
  --card-foreground: 240 10% 3.9%;
  --muted: 240 4.8% 95.9%;
  --muted-foreground: 240 3.8% 46.1%;
  --border: 240 5.9% 90%;
  --primary: 240 5.9% 10%;
  --primary-foreground: 0 0% 98%;
  --radius: 0.5rem;
  --radius-4xl: 2rem;
  --spacing: 0.25rem;
  --status-positive: 142 71% 45%;
  --status-negative: 0 61% 52%;
}

.dark {
  --background: 240 10% 3.9%;
  --foreground: 0 0% 98%;
  --card: 240 10% 3.9%;
  --card-foreground: 0 0% 98%;
  --muted: 240 3.7% 15.9%;
  --muted-foreground: 240 5% 64.9%;
  --border: 240 3.7% 15.9%;
  --primary: 0 0% 98%;
  --primary-foreground: 240 5.9% 10%;
}

/* ---------- Сброс и база ---------- */

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

html {
  -webkit-text-size-adjust: 100%;
  background-color: hsl(var(--background));
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 600;
  line-height: 1.2;
}

p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

/* Видимые состояния фокуса — везде одинаковые */
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid hsl(var(--primary));
  outline-offset: 2px;
  border-radius: calc(var(--radius) - 2px);
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: 0.001ms !important;
  }
}

/* ---------- Контейнер и общие утилиты ---------- */

.container {
  width: 100%;
  max-width: 72rem; /* 1152px */
  margin-inline: auto;
  padding-inline: 1.25rem;
}

@media (min-width: 640px) {
  .container {
    padding-inline: 2rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-inline: 2.5rem;
  }
}

.section {
  padding-block: 3rem;
}

@media (min-width: 768px) {
  .section {
    padding-block: 4.5rem;
  }
}

h1 {
  font-size: clamp(2.25rem, 1.9rem + 1.4vw, 3rem); /* 36–48px */
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 1.6rem + 0.5vw, 1.875rem); /* 28–30px */
  letter-spacing: -0.01em;
}

.section-heading {
  margin-bottom: 2rem;
  scroll-margin-top: 4.5rem;
}

.muted {
  color: hsl(var(--muted-foreground));
  font-size: 0.875rem;
}

/* ---------- Хиро ---------- */

.hero {
  padding-block: 3.5rem 3rem;
}

@media (min-width: 768px) {
  .hero {
    padding-block: 6rem 4rem;
  }
}

.hero__avatar {
  display: block;
  width: 6rem;
  height: 6rem;
  border-radius: min(var(--radius-4xl), 24px);
  object-fit: cover;
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .hero__avatar {
    width: 8rem;
    height: 8rem;
  }
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  height: 1.25rem;
  padding-inline: 0.5rem;
  margin-bottom: 1rem;
  border: 1px solid hsl(var(--border));
  border-radius: 1rem;
  color: hsl(var(--foreground));
  font-size: 0.75rem;
  font-weight: 500;
}

.status-badge__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background-color: hsl(var(--status-positive));
}

.hero__name {
  margin-bottom: 0.375rem;
}

.hero__role {
  max-width: 40rem;
  margin-bottom: 0.75rem;
  font-size: 1.125rem;
  color: hsl(var(--foreground));
}

@media (min-width: 768px) {
  .hero__role {
    font-size: 1.25rem;
  }
}

.hero__process {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
  margin-bottom: 0.75rem;
}

.hero__process-tag {
  display: inline-flex;
  align-items: center;
  height: 1.25rem;
  padding-inline: 0.5rem;
  border: 1px solid hsl(var(--border));
  border-radius: 1rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.75rem;
  font-weight: 500;
}

.hero__process-arrow {
  color: hsl(var(--muted-foreground));
  font-size: 0.75rem;
}

.hero__meta {
  margin-top: 0.25rem;
  margin-bottom: 1.25rem;
}

.hero__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2rem;
}

.link {
  color: hsl(var(--foreground));
  text-decoration: underline;
  text-decoration-color: hsl(var(--border));
  text-underline-offset: 3px;
  transition: text-decoration-color 150ms ease;
}

.link:hover {
  text-decoration-color: hsl(var(--foreground));
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  height: 1.9375rem;
  padding: 0 0.625rem;
  border-radius: 0.625rem;
  border: 1px solid transparent;
  font-size: 0.8rem;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  transition: opacity 150ms ease, border-color 150ms ease, background-color 150ms ease, transform 100ms ease;
}

.button:active {
  transform: translateY(1px);
}

.button svg {
  width: 1rem;
  height: 1rem;
}

.button--primary {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

.button--primary:hover {
  opacity: 0.8;
}

.button--outline {
  border-color: hsl(var(--border));
  color: hsl(var(--foreground));
}

.button--outline:hover {
  background-color: hsl(var(--muted));
}

/* ---------- Избранные кейсы ---------- */

.cases__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .cases__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cases__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.case-card {
  height: 100%;
}

.case-card__card {
  display: flex;
  flex-direction: column;
  height: 100%;
  border: 1px solid hsl(var(--foreground) / 10%);
  border-radius: 0.75rem;
  background-color: hsl(var(--card));
  color: hsl(var(--card-foreground));
  overflow: hidden;
}

.case-card__cover {
  aspect-ratio: 16 / 9;
  width: 100%;
  object-fit: cover;
  object-position: top center;
  background-color: hsl(var(--muted));
}

.case-card__cover--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  text-align: center;
  font-size: 0.9375rem;
  font-weight: 500;
  /* --muted-foreground на --muted даёт 4.39:1 в светлой теме (ниже нормы 4.5:1),
     поэтому здесь используем --foreground: контраст ≥ 4.5:1 в обеих темах. */
  color: hsl(var(--foreground));
}

.case-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  padding: 1.25rem;
  flex: 1;
}

.case-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

.case-card__tag {
  display: inline-flex;
  align-items: center;
  height: 1.25rem;
  padding-inline: 0.5rem;
  border: 1px solid hsl(var(--border));
  border-radius: 1rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.75rem;
  font-weight: 500;
}

.case-card__title {
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.35;
}

.case-card__desc {
  color: hsl(var(--muted-foreground));
  font-size: 0.9375rem;
  line-height: 1.5;
}

.case-card__metric {
  margin-top: auto;
  font-size: 0.9375rem;
  font-weight: 600;
}

.case-card__footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid hsl(var(--border));
  background-color: hsl(var(--muted) / 50%);
}

.case-card__cta {
  width: 100%;
}

/* ---------- Обо мне ---------- */

.about__text {
  max-width: 68ch;
  font-size: 1rem;
  line-height: 1.6;
  color: hsl(var(--foreground));
}

/* ---------- Опыт работы ---------- */

.experience__row {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 0.625rem;
}

@media (min-width: 640px) {
  .experience__row {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
  }
}

.experience__primary {
  margin-bottom: 2.5rem;
}

.experience__heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.375rem;
}

.experience__role {
  font-size: 1.125rem;
}

.experience__position {
  font-size: 1rem;
}

.experience__period {
  white-space: nowrap;
}

.experience__desc {
  max-width: 68ch;
  font-size: 1rem;
  line-height: 1.6;
  color: hsl(var(--foreground));
}

.experience__divider {
  height: 1px;
  margin-bottom: 2.5rem;
  background-color: hsl(var(--border));
}

.experience__subheading {
  margin-bottom: 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: hsl(var(--muted-foreground));
}

.experience__list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.experience__item {
  padding-top: 1.25rem;
  border-top: 1px solid hsl(var(--border));
}

.experience__item:first-child {
  padding-top: 0;
  border-top: none;
}

.experience__item-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.375rem;
}

.experience__item-role {
  font-size: 0.9375rem;
  font-weight: 600;
}

.experience__item-position {
  font-size: 0.8125rem;
}

.experience__item-period {
  font-size: 0.8125rem;
  white-space: nowrap;
}

.experience__item-desc {
  max-width: 60ch;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: hsl(var(--muted-foreground));
}

/* ---------- Верхняя шапка (иконки Telegram и переключателя темы) ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: hsl(var(--background));
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.75rem;
}

/* На десктопе шапка и футер растягиваются на всю ширину экрана,
   а не ограничиваются шириной .container (72rem). */
@media (min-width: 1024px) {
  .site-header__inner,
  .site-footer__inner {
    max-width: none;
  }
}

.site-header__start {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.site-nav {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

@media (min-width: 640px) {
  .site-nav {
    display: flex;
  }
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  height: 2rem;
  padding-inline: 0.75rem;
  border-radius: 0.625rem;
  color: hsl(var(--foreground));
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
  transition: background-color 150ms ease;
}

.site-nav a:hover {
  background-color: hsl(var(--muted));
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.625rem;
  color: hsl(var(--foreground));
  transition: background-color 150ms ease;
}

.menu-toggle:hover {
  background-color: hsl(var(--muted));
}

@media (min-width: 640px) {
  .menu-toggle {
    display: none;
  }
}

.menu-toggle__box {
  position: relative;
  width: 1.125rem;
  height: 1.125rem;
}

.menu-toggle__line {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 1px;
  background-color: currentColor;
  transition: transform 150ms ease, top 150ms ease;
}

.menu-toggle__line:first-child {
  top: 0.3rem;
}

.menu-toggle__line:last-child {
  top: 0.75rem;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:first-child {
  top: 0.53rem;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:last-child {
  top: 0.53rem;
  transform: rotate(-45deg);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  padding: 1.5rem 1.25rem 2rem;
  border-top: 1px solid hsl(var(--border));
  background-color: hsl(var(--muted));
}

.mobile-nav[hidden] {
  display: none;
}

.mobile-nav a {
  display: block;
  padding: 0.25rem 0.75rem;
  border-radius: 0.625rem;
  color: hsl(var(--foreground));
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.3;
  text-decoration: none;
}

.mobile-nav a:hover {
  color: hsl(var(--muted-foreground));
}

.mobile-nav__label {
  margin-top: 1rem;
  padding: 0 0.75rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.875rem;
  font-weight: 500;
}

.mobile-nav__label:first-child {
  margin-top: 0;
}

.mobile-nav__sublink {
  font-size: 1.25rem;
  font-weight: 500;
}

@media (min-width: 640px) {
  .mobile-nav {
    display: none !important;
  }
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.625rem;
  color: hsl(var(--foreground));
  transition: background-color 150ms ease;
}

.icon-button:hover {
  background-color: hsl(var(--muted));
}

.icon-button svg {
  width: 1.125rem;
  height: 1.125rem;
}

.header-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  height: 2rem;
  padding-inline: 0.75rem;
  border: 1px solid transparent;
  border-radius: 0.625rem;
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
  transition: opacity 150ms ease;
}

.header-link:hover {
  opacity: 0.8;
}

.header-link svg {
  width: 1rem;
  height: 1rem;
}

.header-resume {
  display: none;
  align-items: center;
  height: 2rem;
  padding-inline: 0.75rem;
  border-radius: 0.625rem;
  background-color: hsl(var(--muted));
  color: hsl(var(--foreground));
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
  transition: background-color 150ms ease;
}

@media (min-width: 480px) {
  .header-resume {
    display: inline-flex;
  }
}

.header-resume:hover {
  background-color: color-mix(in srgb, hsl(var(--muted)) 80%, hsl(var(--background)) 20%);
}

.header-separator {
  width: 1px;
  height: 1.25rem;
  margin-inline: 0.25rem;
  background-color: hsl(var(--border));
}

.site-header__actions .header-separator:first-of-type {
  display: none;
  margin-left: calc(var(--spacing) * 2);
}

@media (min-width: 480px) {
  .site-header__actions .header-separator:first-of-type {
    display: block;
  }
}


.header-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  transition: opacity 150ms ease;
}

.header-logo:hover {
  opacity: 0.85;
}

.header-logo svg {
  width: 1.75rem;
  height: 1.75rem;
}

/* ---------- Футер ---------- */

.site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.25rem;
  padding-block: 2rem;
}

@media (min-width: 640px) {
  .site-footer__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.site-footer__contacts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
  font-size: 0.9375rem;
}

.site-footer__meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

/* Показываем нужную иконку в зависимости от темы */
.theme-toggle__icon--dark {
  display: none;
}

.dark .theme-toggle__icon--light {
  display: none;
}

.dark .theme-toggle__icon--dark {
  display: block;
}

/* ---------- Шаблон страницы кейса ---------- */

.case-layout {
  width: 100%;
  max-width: none;
  margin-inline: auto;
  padding-inline: 1.25rem;
  padding-block: 1rem 4.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.5rem;
}

.case-main {
  max-width: 68ch;
  margin-inline: auto;
  width: 100%;
}

@media (min-width: 640px) {
  .case-layout {
    padding-inline: 2rem;
  }
}

@media (min-width: 1024px) {
  .case-layout {
    padding-inline: 2.5rem;
    grid-template-columns: 15rem minmax(0, 1fr);
    column-gap: 3rem;
    align-items: start;
  }
}

@media (min-width: 1280px) {
  .case-layout {
    grid-template-columns: 15rem minmax(0, 1fr) 17rem;
  }
}

/* Левая колонка: навигация по разделам (только >=1024px) */

.case-toc {
  display: none;
}

@media (min-width: 1024px) {
  .case-toc {
    display: block;
    position: sticky;
    top: 4.5rem;
    width: calc(100% + 3rem);
  }

  /* Заголовок «Навигация по кейсу» — вне скролла, всегда на месте.
     Скроллится и гаснет по краям только список ниже него. */
  .case-toc__scroll {
    position: relative;
    max-height: calc(100vh - 4.5rem - 6rem - 2.5rem);
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* старый Edge */
  }

  .case-toc__scroll::-webkit-scrollbar {
    display: none; /* Chrome, Safari */
  }

  .case-toc__scroll--overflowing {
    padding-bottom: 3rem;
    -webkit-mask-image: linear-gradient(to bottom, black calc(100% - 3rem), transparent 100%);
    mask-image: linear-gradient(to bottom, black calc(100% - 3rem), transparent 100%);
  }

  /* Верхний фейд включаем только после начала прокрутки — иначе первый
     пункт списка не совпадал бы по уровню с заголовком кейса. */
  .case-toc__scroll--overflowing.case-toc__scroll--scrolled {
    -webkit-mask-image: linear-gradient(to bottom, transparent 0, black 3rem, black calc(100% - 3rem), transparent 100%);
    mask-image: linear-gradient(to bottom, transparent 0, black 3rem, black calc(100% - 3rem), transparent 100%);
  }
}

.case-toc__title {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  margin-bottom: 1rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 150ms ease;
}

.case-toc__title:hover {
  color: hsl(var(--foreground));
}

.case-toc__title-kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  border: 1px solid hsl(var(--border));
  border-radius: 0.25rem;
  background-color: hsl(var(--muted));
  font-family: inherit;
}

.case-toc__title-kbd svg {
  width: 0.625rem;
  height: 0.625rem;
}

.case-toc__list {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.case-toc__sublist {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-top: 0.375rem;
  padding-left: 1rem;
}

.case-toc__link {
  display: block;
  color: hsl(var(--muted-foreground));
  font-size: 0.8125rem;
  text-decoration: none;
  transition: color 150ms ease;
}

.case-toc__link--sub {
  font-size: 0.75rem;
}

.case-toc__link:hover {
  color: hsl(var(--foreground));
}

.case-toc__link--active {
  color: hsl(var(--foreground));
  font-weight: 600;
}

/* Мобильная навигация по разделам (<1024px) */

.case-toc-mobile {
  margin-bottom: 2rem;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  background-color: hsl(var(--card));
}

.case-toc-mobile summary {
  padding: 0.75rem 1rem;
  list-style: none;
  color: hsl(var(--foreground));
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
}

.case-toc-mobile summary::-webkit-details-marker {
  display: none;
}

.case-toc-mobile__list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0 1rem 1rem;
  border-top: 1px solid hsl(var(--border));
}

.case-toc-mobile__list a {
  display: block;
  padding: 0.375rem 0;
  color: hsl(var(--muted-foreground));
  font-size: 0.9375rem;
  text-decoration: none;
}

.case-toc-mobile__list a:hover {
  color: hsl(var(--foreground));
}

@media (min-width: 1024px) {
  .case-toc-mobile {
    display: none;
  }
}

/* Шапка кейса: заголовок, роль/период/продукт, пагинация */

.case-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid hsl(var(--border));
  scroll-margin-top: 4.5rem;
}

.case-header__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.case-header__title {
  font-size: clamp(1.25rem, 1.05rem + 0.7vw, 1.625rem);
}

.case-meta {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-top: 0.875rem;
}

.case-meta__item {
  font-size: 0.875rem;
}

.case-meta__label {
  color: hsl(var(--muted-foreground));
}

.case-meta__value {
  color: hsl(var(--foreground));
  font-weight: 500;
}

.case-pager {
  display: flex;
  flex-shrink: 0;
  gap: 0.5rem;
}

.case-pager .icon-button {
  background-color: hsl(var(--muted));
}

.case-pager .icon-button:hover {
  background-color: color-mix(in srgb, hsl(var(--muted)) 80%, hsl(var(--background)) 20%);
}

/* TL;DR: заголовок над карточками результатов */

.case-tldr__intro {
  margin-bottom: 0.75rem;
  font-size: 1rem;
  font-weight: 600;
}

/* Ключевые результаты карточками: цвет обводки отражает знак метрики */

.case-metrics-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (min-width: 30rem) {
  .case-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* На десктопе (появляется sticky-сайдбар TOC) — компактнее, в 2 колонки */
@media (min-width: 1024px) {
  .case-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.625rem;
  }
}

.case-metric-card {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  background-color: hsl(var(--muted) / 40%);
}

@media (min-width: 1024px) {
  .case-metric-card {
    gap: 0.25rem;
    padding: 0.875rem 1rem;
    min-height: 6rem;
  }
}

.case-metric-card--positive {
  border-color: hsl(var(--status-positive) / 40%);
  background-color: hsl(var(--status-positive) / 10%);
}

.case-metric-card--negative {
  border-color: hsl(var(--status-negative) / 40%);
  background-color: hsl(var(--status-negative) / 10%);
}

.case-metric-card--neutral {
  border-color: hsl(var(--border));
  background-color: hsl(var(--muted) / 40%);
}

.case-metric-card__label {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: hsl(var(--muted-foreground));
}

.case-metric-card__icon {
  font-size: 0.6875rem;
  line-height: 1;
}

.case-metric-card--positive .case-metric-card__icon {
  color: hsl(var(--status-positive));
}

.case-metric-card--negative .case-metric-card__icon {
  color: hsl(var(--status-negative));
}

.case-metric-card--neutral .case-metric-card__icon {
  color: hsl(var(--muted-foreground));
}

.case-metric-card__value {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: hsl(var(--foreground));
}

.case-metric-card__desc {
  font-size: 0.875rem;
  line-height: 1.5;
  color: hsl(var(--muted-foreground));
}

@media (min-width: 1024px) {
  .case-metric-card__value {
    font-size: 1.0625rem;
  }

  .case-metric-card__desc {
    font-size: 0.75rem;
    line-height: 1.4;
  }
}

/* Обложка кейса */

.case-cover {
  margin: 0 0 2rem;
}

.case-cover img {
  width: 100%;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
}

/* Тело кейса: типографика markdown-контента */

.case-content h2 {
  margin-top: 3rem;
  margin-bottom: 1rem;
  scroll-margin-top: 4.5rem;
}

.case-content h2:first-child {
  margin-top: 0;
}

.case-content h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  scroll-margin-top: 4.5rem;
  font-size: 1.1875rem;
}

.case-content h4 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  scroll-margin-top: 4.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
  color: hsl(var(--foreground));
}

.case-content p {
  margin-bottom: 1rem;
  max-width: 68ch;
  color: hsl(var(--foreground));
}

.case-content ul,
.case-content ol {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.case-content ul {
  list-style: disc;
}

.case-content ol {
  list-style: decimal;
}

.case-content li {
  max-width: 68ch;
  color: hsl(var(--foreground));
}

.case-content strong {
  font-weight: 600;
}

.case-content code {
  padding: 0.125rem 0.375rem;
  border-radius: 0.25rem;
  background-color: hsl(var(--muted));
  color: hsl(var(--foreground));
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.875em;
}

.case-content pre {
  margin-bottom: 1.5rem;
  padding: 0.875rem 1rem;
  border-radius: 0.5rem;
  background-color: hsl(var(--muted));
  overflow-x: auto;
}

.case-content pre code {
  padding: 0;
  border-radius: 0;
  background-color: transparent;
}

.case-table-wrap {
  margin-bottom: 1.5rem;
  overflow-x: auto;
}

.case-content table {
  width: 100%;
  min-width: 32rem;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.case-content th {
  padding: 0.625rem 0.75rem;
  border-bottom: 1px solid hsl(var(--border));
  color: hsl(var(--muted-foreground));
  font-size: 0.8125rem;
  font-weight: 600;
  text-align: left;
}

.case-content td {
  padding: 0.625rem 0.75rem;
  border-bottom: 1px solid hsl(var(--border));
  vertical-align: top;
}

.case-callout {
  margin: 0 0 1.5rem;
  padding: 1rem 1.25rem;
  border-left: 3px solid hsl(var(--border));
  border-radius: 0 var(--radius) var(--radius) 0;
  background-color: hsl(var(--muted) / 50%);
}

.case-callout p {
  margin-bottom: 0.5rem;
}

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

.case-content figure {
  margin: 0 0 2rem;
}

.case-content figure img {
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
}

.case-content figcaption {
  margin-top: 0.5rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.8125rem;
  text-align: center;
}

.case-image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 12rem;
  padding: 2rem;
  border: 1px dashed hsl(var(--border));
  border-radius: var(--radius);
  background-color: hsl(var(--muted) / 50%);
  /* Как и у .case-card__cover--placeholder: --muted-foreground на --muted не даёт
     4.5:1 в светлой теме, поэтому текст-заглушка — на --foreground. */
  color: hsl(var(--foreground));
  font-size: 0.9375rem;
  font-weight: 500;
  text-align: center;
}

/* Плейсхолдер обложки кейса — на всю ширину контейнера */

.case-image-placeholder--cover {
  min-height: 16rem;
}

/* Правая колонка: другие кейсы + CTA. На <1280px — обычный блок в потоке
   документа под .case-content (в 2 колонки от 640px), на >=1280px — sticky-сайдбар. */

.case-aside {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 640px) and (max-width: 1279.98px) {
  .case-aside {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: 1.5rem 2rem;
  }
}

@media (min-width: 1024px) and (max-width: 1279.98px) {
  .case-aside {
    grid-column: 2;
  }
}

@media (max-width: 1279.98px) {
  .case-aside {
    max-width: 68ch;
    margin-inline: auto;
    width: 100%;
  }

  .case-cta {
    order: -1;
  }
}

@media (min-width: 1280px) {
  .case-aside {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    position: sticky;
    top: 4.5rem;
    align-self: start;
    max-height: calc(100vh - 4.5rem);
    overflow-y: auto;
    overscroll-behavior: contain;
  }
}

.case-siblings__title {
  margin-bottom: 1rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.9375rem;
  font-weight: 500;
}

.case-siblings__list {
  display: flex;
  flex-direction: column;
}

.case-siblings__link {
  display: block;
  padding: 0.25rem 0;
  color: hsl(var(--foreground));
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 150ms ease;
}

.case-siblings__link:hover {
  color: hsl(var(--muted-foreground));
}

.case-cta {
  padding: 1.5rem;
  border-radius: var(--radius);
  background-color: color-mix(in srgb, hsl(var(--muted)) 50%, hsl(var(--background)) 50%);
  color: hsl(var(--foreground));
}

.case-cta__title {
  margin-bottom: 0.5rem;
  font-size: 1.0625rem;
}

.case-cta__text {
  margin-bottom: 1rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.9375rem;
  line-height: 1.5;
}

.case-cta .button--outline {
  background-color: hsl(var(--background));
}

.case-cta .button--outline:hover {
  background-color: hsl(var(--muted));
}

/* ---------- Страница-заглушка /resume.html ---------- */

.stub {
  min-height: calc(100vh - 4.5rem);
  display: flex;
  align-items: center;
}

.stub__inner {
  padding-block: 4rem;
  max-width: 40rem;
}

.stub__inner h1 {
  margin-bottom: 1rem;
}

.stub__inner p {
  color: hsl(var(--muted-foreground));
  font-size: 1.0625rem;
  line-height: 1.6;
}

.stub__inner p + p {
  margin-top: 1.5rem;
}

.stub__back {
  display: inline-block;
  margin-top: 2rem;
}
