/* Гегель. Наука логики — общие стили разборов */

:root{
  --bg:#0a0b0f; --bg2:#101219;
  --ink:#ece8de; --dim:#9c988c; --faint:#6d6a62;
  --gold:#d4af6a; --gold-b:#f4d79b;
  --being:#f3e3c0; --nothing:#7b83c8; --becoming:#5cc8a8;
  --panel:rgba(255,255,255,.035);
  --panel-2:rgba(255,255,255,.06);
  --line:rgba(212,175,106,.22);
  --serif:"PT Serif",Georgia,"Times New Roman",serif;
  --sans:"Segoe UI",system-ui,-apple-system,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg); color:var(--ink);
  font-family:var(--serif); font-size:17px; line-height:1.72;
  overflow-x:hidden;
  background-image:
    radial-gradient(60rem 40rem at 15% -5%, rgba(123,131,200,.10), transparent 60%),
    radial-gradient(50rem 40rem at 90% 20%, rgba(212,175,106,.07), transparent 60%),
    radial-gradient(60rem 50rem at 50% 120%, rgba(92,200,168,.06), transparent 60%);
  background-attachment:fixed;
}
::selection{background:rgba(212,175,106,.3)}

/* ---------- каркас ---------- */
.wrap{max-width:920px;margin:0 auto;padding:0 24px}
section{padding:90px 0;position:relative}
.sec-num{
  font-family:var(--sans); font-size:.72rem; letter-spacing:.28em;
  color:var(--gold); text-transform:uppercase; margin-bottom:14px; display:block;
}
h2{font-size:clamp(1.7rem,4.2vw,2.5rem); line-height:1.2; font-weight:400; margin-bottom:8px; letter-spacing:.01em}
h2 .sub{display:block;font-size:.95rem;color:var(--dim);letter-spacing:.02em;margin-top:10px;font-style:italic}
h3{font-size:1.22rem;font-weight:400;color:var(--gold-b);margin:34px 0 12px}
p{margin-bottom:16px;max-width:66ch}
p.lead{font-size:1.12rem;color:#f2eee5}
strong{color:var(--gold-b);font-weight:400}
em{color:#fff;font-style:italic}
a{color:var(--gold);text-decoration:none;border-bottom:1px solid rgba(212,175,106,.3)}
hr.rule{border:0;height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:70px 0}

/* ---------- прогресс + навигация ---------- */
#progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:60;
  background:linear-gradient(90deg,var(--nothing),var(--gold),var(--becoming));box-shadow:0 0 12px rgba(212,175,106,.5)}
nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
  background:rgba(10,11,15,.82);border-bottom:1px solid rgba(255,255,255,.06)}
nav .wrap{display:flex;flex-wrap:wrap;gap:4px 4px;padding:9px 24px;justify-content:center}
nav a{font-family:var(--sans);font-size:.76rem;letter-spacing:.06em;color:var(--dim);
  padding:6px 11px;border-radius:20px;border:0;white-space:nowrap;transition:.25s}
nav a:hover{color:var(--gold-b);background:rgba(212,175,106,.1)}
nav a.on{color:#0a0b0f;background:var(--gold)}
/* на узких экранах оглавление занимает много строк — липкая полоса съедала бы экран */
@media(max-width:640px){nav{position:static}nav a{font-size:.72rem;padding:5px 9px}}

/* ---------- герой ---------- */
.hero{min-height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;
  text-align:center;padding:0 24px;position:relative;overflow:hidden}
.hero .halo{position:absolute;width:min(78vw,760px);aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(243,227,192,.13),rgba(123,131,200,.07) 45%,transparent 70%);
  animation:breathe 11s ease-in-out infinite}
.hero .ring{position:absolute;width:min(66vw,600px);aspect-ratio:1;border-radius:50%;
  border:1px solid rgba(212,175,106,.18);animation:spin 60s linear infinite}
.hero .ring:nth-of-type(2){width:min(50vw,440px);border-style:dashed;border-color:rgba(123,131,200,.22);animation-duration:44s;animation-direction:reverse}
@keyframes breathe{0%,100%{transform:scale(1);opacity:.85}50%{transform:scale(1.13);opacity:1}}
@keyframes spin{to{transform:rotate(360deg)}}
.hero-inner{position:relative;z-index:2}
.hero .kicker{font-family:var(--sans);font-size:.75rem;letter-spacing:.4em;color:var(--dim);text-transform:uppercase;margin-bottom:26px}
.hero h1{font-size:clamp(3.4rem,15vw,9rem);font-weight:400;letter-spacing:.16em;line-height:1;
  background:linear-gradient(180deg,#fff8e8,var(--gold) 55%,#8a6c33);
  -webkit-background-clip:text;background-clip:text;color:transparent;text-indent:.16em}
.hero .under{margin-top:22px;font-size:clamp(1rem,2.6vw,1.25rem);color:var(--dim);max-width:30ch}
.hero .meta{margin-top:34px;font-family:var(--sans);font-size:.76rem;color:var(--faint);letter-spacing:.08em}
.scroll-hint{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);color:var(--faint);
  font-family:var(--sans);font-size:.7rem;letter-spacing:.24em;animation:bob 2.6s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0);opacity:.5}50%{transform:translate(-50%,9px);opacity:1}}

/* ---------- цитата ---------- */
blockquote{border-left:2px solid var(--gold);background:linear-gradient(90deg,rgba(212,175,106,.07),transparent);
  padding:16px 22px;margin:26px 0;font-style:italic;color:#f5f0e4;max-width:64ch}
blockquote cite{display:block;margin-top:10px;font-style:normal;font-family:var(--sans);
  font-size:.73rem;letter-spacing:.1em;color:var(--faint);text-transform:uppercase}

/* ---------- карточки/панели ---------- */
.panel{background:var(--panel);border:1px solid rgba(255,255,255,.07);border-radius:14px;padding:26px}
.stage{background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  border:1px solid var(--line);border-radius:18px;padding:28px;margin:34px 0;position:relative;overflow:hidden}
.stage-title{font-family:var(--sans);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--gold);margin-bottom:20px}
.controls{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
button{font-family:var(--sans);font-size:.82rem;letter-spacing:.03em;color:var(--ink);cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid rgba(212,175,106,.32);border-radius:24px;
  padding:9px 18px;transition:.22s}
button:hover{background:rgba(212,175,106,.16);border-color:var(--gold);color:#fff}
button:disabled{opacity:.35;cursor:default}
button.on{background:var(--gold);color:#0a0b0f;border-color:var(--gold)}
.note{font-family:var(--sans);font-size:.84rem;color:var(--dim);line-height:1.6}

/* ---------- анимация появления ---------- */
.rev{opacity:0;transform:translateY(26px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.2,1)}
.rev.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .rev{opacity:1;transform:none;transition:none}
  .hero .halo,.hero .ring,.scroll-hint{animation:none}
}

/* ---------- карта главы ---------- */
.map{width:100%;overflow-x:auto}
.map svg{min-width:680px;width:100%;height:auto}
.map .flow{stroke-dasharray:700;stroke-dashoffset:700;transition:stroke-dashoffset 2.4s ease}
.map.in .flow{stroke-dashoffset:0}
.map text{font-family:var(--sans);fill:var(--ink)}
.map .lbl{font-size:13px;letter-spacing:.04em}
.map .cap{font-size:10px;letter-spacing:.16em;fill:var(--faint);text-transform:uppercase}

/* ---------- примечания (аккордеон) ---------- */
.acc{border:1px solid rgba(255,255,255,.08);border-radius:12px;margin-bottom:12px;overflow:hidden;background:var(--panel)}
.acc-head{width:100%;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:18px 22px;background:transparent;border:0;border-radius:0;font-family:var(--serif);font-size:1.02rem;color:var(--ink)}
.acc-head:hover{background:rgba(212,175,106,.06)}
.acc-head .pg{font-family:var(--sans);font-size:.7rem;color:var(--faint);letter-spacing:.1em;flex:none}
.acc-head .chev{transition:.3s;color:var(--gold);flex:none;font-size:1.2rem}
.acc.open .chev{transform:rotate(45deg)}
.acc-body{max-height:0;overflow:hidden;transition:max-height .55s cubic-bezier(.4,0,.2,1)}
.acc-body-inner{padding:2px 22px 22px}
.acc-body-inner p{font-size:.98rem}

/* ---------- мифы ---------- */
.myths{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;margin-top:28px}
.myth{border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:22px;background:var(--panel);
  position:relative;transition:.35s}
.myth:hover{border-color:var(--line);transform:translateY(-4px);background:var(--panel-2)}
.myth .no{font-family:var(--sans);font-size:.7rem;letter-spacing:.18em;color:#c05a4a;text-transform:uppercase;margin-bottom:10px}
.myth .yes{font-family:var(--sans);font-size:.7rem;letter-spacing:.18em;color:var(--becoming);text-transform:uppercase;margin:16px 0 8px}
.myth p{font-size:.94rem;margin:0}

/* ---------- глоссарий ---------- */
.gloss{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.gloss div{border-left:2px solid var(--line);padding:10px 0 10px 16px}
.gloss b{display:block;color:var(--gold-b);font-weight:400;font-size:1rem;margin-bottom:4px}
.gloss span{font-family:var(--sans);font-size:.86rem;color:var(--dim);line-height:1.6}

footer{padding:70px 0 90px;border-top:1px solid rgba(255,255,255,.06);text-align:center;
  font-family:var(--sans);font-size:.8rem;color:var(--faint);line-height:1.9}

@media(max-width:760px){
  body{font-size:16px}
  .strip{grid-template-columns:1fr;gap:24px}
  .twins{grid-template-columns:1fr}
  section{padding:64px 0}
}

/* ---------- сквозная навигация серии ---------- */
.serieslinks{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:0 0 30px;text-align:left}
.serieslinks a{display:block;border:1px solid rgba(255,255,255,.09);border-radius:12px;padding:14px 18px;
  background:var(--panel);color:var(--dim);font-family:var(--sans);font-size:.76rem;transition:.3s}
.serieslinks a:hover{border-color:var(--line);color:var(--ink);background:var(--panel-2)}
.serieslinks a b{display:block;font-family:var(--serif);font-size:1rem;color:var(--gold-b);font-weight:400;margin-top:4px}
.serieslinks a.next{text-align:right}
.serieslinks a.solo{grid-column:span 2}
@media(max-width:640px){.serieslinks{grid-template-columns:1fr}.serieslinks a.next{text-align:left}}

/* ---------- переключатель частей ---------- */
.parts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:30px 0}
.parts a{display:block;border:1px solid rgba(255,255,255,.09);border-radius:12px;padding:15px 17px;
  background:var(--panel);color:var(--dim);font-family:var(--sans);font-size:.78rem;line-height:1.5}
.parts a:hover{border-color:var(--line);color:var(--ink);background:var(--panel-2)}
.parts a.now{background:rgba(212,175,106,.13);border-color:var(--gold);color:var(--gold-b)}
.parts a i{font-style:normal;font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--faint);display:block;margin-bottom:6px}
.parts a b{display:block;font-family:var(--serif);font-size:1.06rem;color:inherit;font-weight:400;margin-bottom:5px}
@media(max-width:760px){.parts{grid-template-columns:1fr}}
.parts span{display:block;border:1px dashed rgba(255,255,255,.1);border-radius:12px;padding:15px 17px;
  background:rgba(255,255,255,.015);color:var(--faint);font-family:var(--sans);font-size:.78rem;line-height:1.5}
.parts span i{font-style:normal;font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--faint);display:block;margin-bottom:6px}
.parts span b{display:block;font-family:var(--serif);font-size:1.06rem;color:var(--dim);font-weight:400;margin-bottom:5px}

/* ---------- пояснение к цитате ---------- */
.gl{margin:-18px 0 26px;padding-left:22px;border-left:2px solid rgba(212,175,106,.22);max-width:64ch}
.gl-btn{font-family:var(--sans);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);
  background:none;border:0;border-radius:0;padding:8px 0;cursor:pointer;display:inline-flex;align-items:center;gap:9px}
.gl-btn:hover{background:none;color:var(--gold-b)}
.gl-btn::before{content:"\25B8";display:inline-block;transition:transform .3s}
.gl.open .gl-btn::before{transform:rotate(90deg)}
.gl-body{max-height:0;overflow:hidden;transition:max-height .5s cubic-bezier(.4,0,.2,1)}
.gl-inner{padding:2px 0 14px}
.gl-inner p{font-family:var(--sans);font-size:.9rem;line-height:1.7;color:var(--dim);margin:0 0 9px;max-width:none}
.gl-inner p:last-child{margin:0}
.gl-inner b{color:var(--gold-b);font-weight:400}
.gl-inner i{color:#cfcabd;font-style:italic}

/* ---------- план / список ступеней ---------- */
.plan{margin-top:24px;border-top:1px solid rgba(255,255,255,.07)}
.plan a,.plan div.prow{display:flex;align-items:baseline;gap:16px;padding:14px 4px;
  border-bottom:1px solid rgba(255,255,255,.07);text-decoration:none;color:inherit}
.plan .pno{font-family:var(--sans);font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold);flex:0 0 84px}
.plan b{font-weight:400;color:var(--ink);flex:1;font-size:1rem}
.plan .ppg{font-family:var(--sans);font-size:.74rem;color:var(--faint);letter-spacing:.04em;white-space:nowrap}

/* ---------- холсты опытов ---------- */
canvas{width:100%;display:block;border-radius:12px;background:rgba(0,0,0,.22)}
.legend{display:flex;flex-wrap:wrap;gap:18px;margin-top:16px;font-family:var(--sans);font-size:.74rem;color:var(--dim);letter-spacing:.04em}
.legend i{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:7px;vertical-align:-1px}