/* ============================================================
   1. ТОКЕНЫ / DESIGN TOKENS
   Меняйте значения здесь — оформление всего сайта следует за ними.
   Change the values here and the whole site follows.
   ============================================================ */
:root {
  /* Типографика */
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "Instrument Serif", Georgia, "Times New Roman", serif;

  --h1: clamp(3rem, 9vw, 6.5rem);
  --h2: clamp(1.75rem, 3.6vw, 2.75rem);

  /* Раскладка */
  --maxw: 1180px;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --section-y: clamp(4.5rem, 10vw, 9rem);
  --radius: 16px;
  --radius-sm: 10px;
  --ease: cubic-bezier(.4, 0, .2, 1);
}

/* Тёмная тема — значение по умолчанию */
:root,
:root[data-theme="dark"] {
  --bg:            #0a0b0d;
  --bg-alt:        #0f1115;
  --surface:       #14161b;
  --surface-2:     #1a1d24;
  --border:        #23262e;
  --border-strong: #333846;
  --text:          #edeef1;
  --text-muted:    #969ca8;
  --accent:        #8b9bff;
  --accent-soft:   rgba(139, 155, 255, .14);
  --on-accent:     #0a0b0d;
  --shadow:        0 24px 60px -32px rgba(0, 0, 0, .9);
}

/* Светлая тема */
:root[data-theme="light"] {
  --bg:            #fbfbfc;
  --bg-alt:        #f3f4f7;
  --surface:       #ffffff;
  --surface-2:     #f6f7f9;
  --border:        #e4e6ec;
  --border-strong: #cdd1db;
  --text:          #14161b;
  --text-muted:    #616875;
  --accent:        #3f4ed6;
  --accent-soft:   rgba(63, 78, 214, .1);
  --on-accent:     #ffffff;
  --shadow:        0 24px 60px -34px rgba(20, 24, 40, .35);
}

/* ============================================================
   2. БАЗА / BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background .35s var(--ease), color .35s var(--ease);
}
body.no-scroll { overflow: hidden; }

h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.12; }
h2 { font-size: var(--h2); font-weight: 600; letter-spacing: -.025em; }
h3 { font-size: 1.18rem; font-weight: 600; letter-spacing: -.015em; }
p  { margin: 0 0 1em; }

a { color: inherit; }
img, video, iframe, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--accent); color: var(--on-accent);
  padding: .65rem 1.1rem; border-radius: 0 0 var(--radius-sm) 0;
  text-decoration: none; font-size: .9rem;
}
.skip-link:focus { left: 0; }

/* Треугольник «play» — рисуется бордюрами, без картинок */
.tri {
  display: inline-block;
  width: 0; height: 0;
  border-style: solid;
  border-width: 5px 0 5px 8px;
  border-color: transparent transparent transparent currentColor;
  margin-right: .1rem;
}

/* ============================================================
   3. ШАПКА / HEADER
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.site-header.is-stuck { border-bottom-color: var(--border); }

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 68px;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.32rem;
  letter-spacing: .01em;
  text-decoration: none;
  white-space: nowrap;
}

.nav { display: flex; align-items: center; gap: clamp(1.1rem, 2.6vw, 2.1rem); }
.nav a {
  position: relative;
  text-decoration: none; font-size: .93rem;
  color: var(--text-muted);
  transition: color .2s var(--ease);
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -5px;
  height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: left;
  transition: transform .28s var(--ease);
}
.nav a:hover { color: var(--text); }
.nav a:hover::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: .5rem; }

.icon-btn, .lang-toggle, .nav-toggle {
  display: grid; place-items: center;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--text-muted);
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.icon-btn:hover, .lang-toggle:hover, .nav-toggle:hover {
  color: var(--text); border-color: var(--border-strong); background: var(--surface-2);
}

.icon-btn { width: 38px; padding: 0; }
.icon-btn svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.7; }
:root[data-theme="dark"] .i-sun,  :root[data-theme="light"] .i-moon { display: none; }
.i-moon { fill: currentColor; stroke: none; }

.lang-toggle { padding-inline: .9rem; font-size: .78rem; letter-spacing: .09em; font-weight: 600; }

.nav-toggle { display: none; width: 38px; gap: 4px; padding: 0; }
.nav-toggle span {
  display: block; width: 15px; height: 1.5px; background: currentColor;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.nav-toggle.is-open span:first-child { transform: translateY(2.7px) rotate(45deg); }
.nav-toggle.is-open span:last-child  { transform: translateY(-2.8px) rotate(-45deg); }

/* ============================================================
   4. HERO
   ============================================================ */
.hero {
  position: relative;
  overflow: hidden;              /* свечение не должно расширять страницу вбок */
  padding-block: clamp(5rem, 15vw, 11rem) clamp(5rem, 12vw, 9rem);
}

.hero-glow {
  position: absolute; inset: -18% -10% auto 25%;
  height: min(620px, 70vw);
  background:
    radial-gradient(closest-side, color-mix(in srgb, var(--accent) 26%, transparent), transparent 70%);
  filter: blur(30px);
  pointer-events: none;
  animation: float 16s var(--ease) infinite alternate;
}
@keyframes float {
  from { transform: translate3d(-4%, 0, 0) scale(1); }
  to   { transform: translate3d(6%, 5%, 0) scale(1.12); }
}

.hero-inner { position: relative; }

.eyebrow {
  display: inline-flex; align-items: center; gap: .6rem;
  text-transform: uppercase; letter-spacing: .2em;
  font-size: .74rem; font-weight: 600;
  color: var(--accent);
  margin-bottom: 1.4rem;
}
.eyebrow::before {
  content: ""; width: 28px; height: 1px; background: currentColor; opacity: .6;
}

.hero-name {
  font-family: var(--font-display);
  font-size: var(--h1);
  font-weight: 400;
  letter-spacing: -.02em;
  line-height: .98;
  margin-bottom: .35em;
}

.lead {
  font-size: clamp(1.05rem, 1.7vw, 1.28rem);
  line-height: 1.55;
  color: var(--text-muted);
  max-width: 56ch;
  margin-bottom: 2.2rem;
}

.hero-location {
  display: inline-flex; align-items: center; gap: .5rem;
  margin: -1.4rem 0 2rem;
  font-size: .88rem;
  color: var(--text-muted);
}
.hero-location::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
}

.scroll-hint {
  position: absolute; left: var(--gutter); bottom: 1.6rem;
  display: flex; align-items: center; gap: .7rem;
  font-size: .72rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--text-muted); opacity: .75;
}
.scroll-line { display: block; width: 46px; height: 1px; background: currentColor; transform-origin: left; animation: slide 2.4s var(--ease) infinite; }
@keyframes slide { 0%, 100% { transform: scaleX(.35); opacity: .4; } 50% { transform: scaleX(1); opacity: 1; } }

/* ============================================================
   5. КНОПКИ / BUTTONS
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: .45rem;
  padding: .78rem 1.5rem;
  border: 1px solid transparent; border-radius: 999px;
  text-decoration: none; font-size: .94rem; font-weight: 500;
  transition: transform .2s var(--ease), background .2s var(--ease),
              border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.btn:hover { transform: translateY(-2px); }

.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { box-shadow: 0 12px 28px -14px var(--accent); }

.btn-ghost { border-color: var(--border-strong); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.btn-row { display: flex; flex-wrap: wrap; gap: .8rem; }

.link-btn {
  display: inline-flex; align-items: center; gap: .45rem;
  background: none; border: 0; padding: 0;
  color: var(--accent); font-size: .9rem;
}
.link-btn:hover { text-decoration: underline; }

/* ============================================================
   6. СЕКЦИИ / SECTIONS
   ============================================================ */
.section { padding-block: var(--section-y); }
.section-alt { background: var(--bg-alt); }

.section-head {
  display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between;
  gap: 1.5rem; margin-bottom: clamp(2rem, 4vw, 3.25rem);
}
.section-head h2 { margin-bottom: .3rem; }

.section-num {
  font-family: var(--font-display);
  font-size: .95rem; letter-spacing: .1em;
  color: var(--accent); margin: 0 0 .5rem;
}

.section-sub { color: var(--text-muted); margin: 0; max-width: 46ch; font-size: .98rem; }

.section-aside { display: flex; flex-direction: column; align-items: flex-start; gap: .8rem; }
.section-count { margin: 0; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--text-muted); }

.subhead {
  margin: 2.5rem 0 1rem;
  font-size: .76rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--text-muted); font-weight: 600;
}

.filters { display: flex; flex-wrap: wrap; gap: .45rem; }
.filters button {
  padding: .42rem 1.05rem;
  border: 1px solid var(--border); border-radius: 999px;
  background: transparent; color: var(--text-muted);
  font-size: .86rem;
  transition: all .22s var(--ease);
}
.filters button:hover { color: var(--text); border-color: var(--border-strong); }
.filters button.is-active {
  background: var(--text); border-color: var(--text); color: var(--bg);
}

.empty { color: var(--text-muted); }

/* ============================================================
   7. КАРТОЧКИ / CARDS
   ============================================================ */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: clamp(1.1rem, 2.2vw, 1.75rem);
}

.card {
  display: flex; flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.card:hover {
  transform: translateY(-5px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
}

.card-cover, .video-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--surface-2);
  display: grid; place-items: center;
  overflow: hidden;
  width: 100%; padding: 0; border: 0;
}
/* Картинки не перетаскиваются и не выделяются — мелкая, но бесплатная помеха */
.card-cover img, .video-thumb img { -webkit-user-drag: none; user-select: none; }

.card-cover img, .video-thumb img,
.card-cover .gen-cover, .video-thumb .gen-cover {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s var(--ease);
}
.card:hover .card-cover img, .card:hover .card-cover .gen-cover,
.video-card:hover .video-thumb img, .video-card:hover .video-thumb .gen-cover {
  transform: scale(1.045);
}

.play-badge {
  position: absolute;
  display: grid; place-items: center;
  width: 58px; height: 58px; border-radius: 50%;
  background: rgba(10, 11, 13, .55);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, .35);
  color: #fff;
  transition: transform .3s var(--ease), background .3s var(--ease);
}
.play-badge .tri { border-width: 7px 0 7px 11px; margin-left: 3px; }
.video-thumb:hover .play-badge { transform: scale(1.09); background: var(--accent); color: var(--on-accent); border-color: transparent; }

.video-thumb[disabled] { cursor: default; }
.video-thumb[disabled] .play-badge { opacity: .4; }
.video-thumb[disabled] .gen-cover, .video-thumb[disabled] img { filter: saturate(.45); }

.soon-badge {
  position: absolute; top: .8rem; right: .8rem;
  padding: .18rem .6rem;
  font-size: .7rem; letter-spacing: .1em; text-transform: uppercase;
  background: rgba(10, 11, 13, .6); color: #fff;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 999px;
  backdrop-filter: blur(6px);
}

.card-body { display: flex; flex-direction: column; flex: 1; padding: 1.4rem 1.4rem 1.5rem; }

.card-meta {
  display: flex; justify-content: space-between; gap: 1rem;
  font-size: .72rem; letter-spacing: .13em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: .75rem;
}
.card-body p { color: var(--text-muted); font-size: .94rem; }

.tags { display: flex; flex-wrap: wrap; gap: .38rem; list-style: none; padding: 0; margin: .5rem 0 0; }
.tag {
  padding: .2rem .68rem;
  font-size: .76rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
}

.card-links {
  display: flex; flex-wrap: wrap; gap: 1.15rem;
  margin-top: auto; padding-top: 1.2rem;
  font-size: .9rem;
}
.card-links a { color: var(--accent); text-decoration: none; }
.card-links a:hover { text-decoration: underline; }

/* Первый ролик — крупным блоком */
@media (min-width: 900px) {
  /* Первый ролик — во всю ширину двух колонок: кадр сверху, текст под ним */
  .grid-video .video-card:first-child { grid-column: span 2; }
  .grid-video .video-card:first-child .card-body { padding: 1.8rem 2rem 2rem; }
  .grid-video .video-card:first-child h3 { font-size: 1.55rem; }
  .grid-video .video-card:first-child .card-body p { font-size: 1rem; max-width: 62ch; }
  .grid-video .video-card:first-child .play-badge { width: 72px; height: 72px; }
}

/* ============================================================
   8. ОБО МНЕ / КОНТАКТЫ
   ============================================================ */
.about-layout {
  display: grid;
  grid-template-columns: minmax(160px, 280px) 1fr;
  gap: clamp(1.5rem, 5vw, 4.5rem);
  align-items: start;
}
.prose { max-width: 65ch; }
.prose p { color: var(--text-muted); font-size: 1.02rem; }

.skills { display: flex; flex-wrap: wrap; gap: 2rem 3rem; }
.skill-group h4 {
  margin: 0 0 .6rem; font-size: .88rem; font-weight: 600; color: var(--text);
}

.contact { max-width: 62ch; }
.mail {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 5vw, 2.9rem);
  line-height: 1.2;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border-strong);
  word-break: break-word;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}
.mail:hover { color: var(--accent); border-color: var(--accent); }

/* ============================================================
   8b. ОПЫТ / EXPERIENCE
   ============================================================ */
.jobs { display: grid; gap: 0; }

.job {
  display: grid;
  grid-template-columns: minmax(150px, 220px) 1fr;
  gap: clamp(1rem, 4vw, 3.5rem);
  padding-block: clamp(1.75rem, 3.5vw, 2.75rem);
  border-top: 1px solid var(--border);
}
.job:last-child { border-bottom: 1px solid var(--border); }

.job-period {
  display: flex; flex-wrap: wrap; gap: .55rem;
  align-items: baseline;
  align-content: flex-start;   /* иначе строки разъезжаются по высоте карточки */
  font-size: .8rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-muted);
}
.job-now {
  padding: .1rem .55rem;
  font-size: .68rem; letter-spacing: .08em;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
}

.job-body h3 { margin-bottom: .25rem; font-size: 1.22rem; }
.job-company { margin: 0 0 1rem; color: var(--text); font-size: .96rem; }
.job-company span { color: var(--text-muted); }

.job-body ul { margin: 0; padding: 0; list-style: none; display: grid; gap: .7rem; }
.job-body li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--text-muted);
  font-size: .96rem;
}
.job-body li::before {
  content: ""; position: absolute; left: 0; top: .68em;
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent); opacity: .75;
}

/* Образование и языки */
.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem 3rem;
  margin-top: .5rem;
}
.fact-list { margin: 0; padding: 0; list-style: none; display: grid; gap: .6rem; }
.fact-list li { color: var(--text-muted); font-size: .94rem; line-height: 1.5; }
.fact-list strong { color: var(--text); font-weight: 600; }

/* ============================================================
   9. ПОДВАЛ / FOOTER
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 2.2rem;
  font-size: .84rem; color: var(--text-muted);
}
.site-footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .6rem; }

/* ============================================================
   10. ПЛЕЕР / MODAL
   ============================================================ */
.modal { position: fixed; inset: 0; z-index: 90; display: grid; place-items: center; padding: var(--gutter); }
.modal[hidden] { display: none; }

.modal-backdrop { position: absolute; inset: 0; background: rgba(0, 0, 0, .8); backdrop-filter: blur(6px); animation: fade .25s var(--ease); }
@keyframes fade { from { opacity: 0; } }

.modal-window {
  position: relative;
  width: min(1040px, 100%);
  max-height: 90vh; overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  animation: pop .3s var(--ease);
}
@keyframes pop { from { opacity: 0; transform: translateY(14px) scale(.98); } }

.modal-stage {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000 center top / cover no-repeat;
}
.modal-stage > * { width: 100%; height: 100%; border: 0; }

/* Пока презентация грузится: затемнённое превью и индикатор */
.modal-stage.is-loading > iframe { opacity: 0; }
.modal-stage > iframe { opacity: 1; transition: opacity .35s var(--ease); }

.modal-stage.is-loading::before {
  content: "";
  position: absolute; inset: 0;
  background: rgba(0, 0, 0, .55);
}
.modal-stage.is-loading::after {
  content: "";
  position: absolute; top: 50%; left: 50%;
  width: 38px; height: 38px; margin: -19px 0 0 -19px;
  border: 2px solid rgba(255, 255, 255, .28);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.modal-text { padding: 1.35rem 1.6rem 1.7rem; }
.modal-text h3 { margin-bottom: .35rem; }
.modal-text p { margin: 0; color: var(--text-muted); }

.modal-tools {
  position: absolute;
  top: .7rem; right: .7rem; z-index: 3;
  display: flex; gap: .4rem;
}

.modal-btn {
  display: grid; place-items: center;
  width: 40px; height: 40px;
  border: 0; border-radius: 50%;
  background: rgba(0, 0, 0, .55); color: #fff;
  backdrop-filter: blur(6px);
  transition: background .2s var(--ease);
}
.modal-btn:hover { background: rgba(0, 0, 0, .85); }
.modal-btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; }

/* Иконка меняется: развернуть ↔ свернуть */
.modal-btn .i-collapse { display: none; }
.modal-btn.is-on .i-expand { display: none; }
.modal-btn.is-on .i-collapse { display: block; }

/* Полный экран: разворачивается окно целиком, ролик занимает всё место,
   описание прячется — читать его в полноэкранном режиме незачем */
.modal-window:fullscreen {
  width: 100vw; height: 100vh;
  max-height: none; overflow: hidden;
  display: flex; flex-direction: column;
  border: 0; border-radius: 0;
  background: #000;
}
.modal-window:fullscreen .modal-stage { flex: 1; aspect-ratio: auto; }
.modal-window:fullscreen .modal-text { display: none; }

/* ============================================================
   11. ПОМЕТКА «ЧЕРНОВИК» / DRAFT BADGE
   ============================================================ */
.draft-badge {
  position: fixed; left: 1rem; bottom: 1rem; z-index: 50;
  margin: 0; padding: .4rem .85rem;
  font-size: .75rem;
  color: var(--text-muted);
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  border: 1px dashed var(--border-strong);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  pointer-events: none;
}
.draft-badge[hidden] { display: none; }

/* ============================================================
   12. ПОЯВЛЕНИЕ ПРИ СКРОЛЛЕ / REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
  transition-delay: calc(var(--i, 0) * 55ms);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ============================================================
   13. АДАПТИВ / RESPONSIVE
   ============================================================ */
@media (max-width: 820px) {
  .nav-toggle { display: grid; }

  .nav {
    position: fixed; inset: 68px 0 auto 0;
    flex-direction: column; align-items: flex-start;
    gap: 1.35rem;
    padding: 1.75rem var(--gutter) 2.25rem;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    transform: translateY(-12px);
    opacity: 0; visibility: hidden;
    transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav a { font-size: 1.25rem; color: var(--text); }

  .about-layout { grid-template-columns: 1fr; }
  .job { grid-template-columns: 1fr; gap: .9rem; }
  .grid { grid-template-columns: 1fr; }
  .scroll-hint { display: none; }
  .section-head { align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}