/* ===== Шрифты (self-host, subset cyrillic+latin, swap) ===== */
@font-face{font-family:'Cormorant Garamond';font-style:normal;font-weight:400;font-display:swap;src:url(/public/fonts/cormorant-400-cyrillic.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Cormorant Garamond';font-style:normal;font-weight:400;font-display:swap;src:url(/public/fonts/cormorant-400-cyrillic-ext.woff2) format('woff2');unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}
@font-face{font-family:'Cormorant Garamond';font-style:normal;font-weight:400;font-display:swap;src:url(/public/fonts/cormorant-400-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2122,U+2212}
@font-face{font-family:'Cormorant Garamond';font-style:normal;font-weight:500;font-display:swap;src:url(/public/fonts/cormorant-500-cyrillic.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Cormorant Garamond';font-style:normal;font-weight:500;font-display:swap;src:url(/public/fonts/cormorant-500-cyrillic-ext.woff2) format('woff2');unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}
@font-face{font-family:'Cormorant Garamond';font-style:normal;font-weight:500;font-display:swap;src:url(/public/fonts/cormorant-500-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2122,U+2212}
@font-face{font-family:'Cormorant Garamond';font-style:italic;font-weight:400;font-display:swap;src:url(/public/fonts/cormorant-400i-cyrillic.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Cormorant Garamond';font-style:italic;font-weight:400;font-display:swap;src:url(/public/fonts/cormorant-400i-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2122,U+2212}
@font-face{font-family:'Prata';font-style:normal;font-weight:400;font-display:swap;src:url(/public/fonts/prata-400-cyrillic.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Prata';font-style:normal;font-weight:400;font-display:swap;src:url(/public/fonts/prata-400-cyrillic-ext.woff2) format('woff2');unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}
@font-face{font-family:'Prata';font-style:normal;font-weight:400;font-display:swap;src:url(/public/fonts/prata-400-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2122,U+2212}

:root{
  --bg:#F4EEE5; --paper:#FAF6EF; --sand:#EAE0D1; --taupe:#C9B8A3;
  --ink:#221E1A; --ink2:#453B31; --muted:#7A6F62; --gold:#A67C42; --gold-ink:#7A5836;
  --line:rgba(34,30,26,.14); --line2:rgba(34,30,26,.24);
  --serif:'Cormorant Garamond','Iowan Old Style',Palatino,Georgia,serif;
  --display:'Prata','Cormorant Garamond',Georgia,serif;
  --sans:system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --ease:cubic-bezier(.16,1,.3,1);
  --maxw:1100px;
}
*{box-sizing:border-box}
body{margin:0}
.site{background:var(--bg); color:var(--ink2); font-family:var(--sans); font-size:17px; line-height:1.6; min-height:100vh; display:flex; flex-direction:column; -webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--serif); font-weight:400; color:var(--ink); margin:0; text-wrap:balance}
a{color:inherit; text-decoration:none}
input,button{font-family:inherit}
.muted{color:var(--muted)}

.grain{position:fixed; inset:0; z-index:0; pointer-events:none; opacity:.045; mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* topbar */
.topbar{position:sticky; top:0; z-index:20; height:64px; display:flex; align-items:center; justify-content:space-between;
  padding:0 clamp(20px,4vw,44px); background:color-mix(in srgb,var(--bg) 88%,transparent); backdrop-filter:saturate(1.2) blur(12px); border-bottom:1px solid var(--line)}
.tb-logo{font-family:var(--display); font-size:clamp(15px,1.7vw,19px); letter-spacing:.16em; text-transform:uppercase; color:var(--ink)}
.tb-right{display:flex; align-items:center; gap:16px}
.tb-tag{font-size:12px; letter-spacing:.08em; color:var(--muted); max-width:42vw; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.tb-link{font-size:12.5px; letter-spacing:.14em; text-transform:uppercase; color:var(--gold-ink); border-bottom:1px solid transparent; padding-bottom:2px; transition:border-color .25s}
.tb-link:hover{border-color:var(--gold)}

.wrap{position:relative; z-index:1; flex:1; width:100%; max-width:var(--maxw); margin:0 auto; padding:clamp(32px,5vw,64px) clamp(20px,4vw,44px)}
.foot{position:relative; z-index:1; border-top:1px solid var(--line); padding:22px clamp(20px,4vw,44px); display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap; font-size:12.5px; color:var(--muted)}

.eyebrow{font-family:var(--sans); font-size:11.5px; font-weight:600; letter-spacing:.24em; text-transform:uppercase; color:var(--gold-ink); display:inline-block; margin-bottom:14px}
.page-title{font-family:var(--display); font-size:clamp(30px,5vw,56px); line-height:1.04; letter-spacing:-.01em}
.lede{font-family:var(--serif); font-size:clamp(19px,2.2vw,26px); line-height:1.3; color:var(--ink2); max-width:60ch; margin-top:14px}

.btn{display:inline-flex; align-items:center; justify-content:center; gap:10px; font-family:var(--sans); font-size:14px; font-weight:500; letter-spacing:.03em; padding:13px 28px; border:1px solid var(--ink); color:var(--ink); background:transparent; cursor:pointer; transition:.25s var(--ease)}
.btn:hover{background:var(--ink); color:var(--bg)}
.btn--solid{background:var(--ink); color:var(--bg)}
.btn--solid:hover{background:var(--gold); border-color:var(--gold); color:#fff}

/* auth */
.auth{min-height:60vh; display:flex; align-items:center; justify-content:center}
.auth-card{width:100%; max-width:440px; background:var(--paper); border:1px solid var(--line); padding:clamp(30px,4vw,48px)}
.auth-card.center{text-align:center}
.auth-title{font-family:var(--display); font-size:clamp(26px,3.6vw,38px); line-height:1.05; margin-bottom:10px}
.auth-sub{color:var(--muted); font-size:15px; margin-bottom:24px}
.auth-hint{color:var(--muted); font-size:13px; margin-top:20px}
.form{display:flex; flex-direction:column; gap:16px}
.field{display:flex; flex-direction:column; gap:7px}
.field span{font-size:12px; letter-spacing:.1em; text-transform:uppercase; color:var(--muted)}
.field input{padding:13px 14px; border:1px solid var(--line2); background:#fff; font-size:16px; color:var(--ink); border-radius:0; transition:border-color .2s}
.field input:focus{outline:none; border-color:var(--gold)}
.alert{background:#f6e6de; border:1px solid #d9a488; color:#8a3b1e; padding:12px 14px; font-size:14px; margin-bottom:18px}

/* hero-sm */
.hero-sm{padding-bottom:clamp(28px,4vw,44px); border-bottom:1px solid var(--line); margin-bottom:clamp(28px,4vw,44px)}

/* course / lessons */
.module{margin-bottom:clamp(30px,4vw,50px)}
.module-head{display:flex; align-items:baseline; gap:16px; margin-bottom:8px}
.module-kicker{font-size:11px; letter-spacing:.22em; text-transform:uppercase; color:var(--gold-ink)}
.module-head h2{font-size:clamp(22px,2.8vw,32px)}
.lessons{list-style:none; margin:0; padding:0}
.lesson-row{display:grid; grid-template-columns:48px 1fr auto; align-items:center; gap:18px; padding:20px 0; border-top:1px solid var(--line); transition:padding-left .3s var(--ease)}
.lesson-row:hover{padding-left:12px}
.ln{font-family:var(--serif); font-style:italic; color:var(--gold-ink); font-size:16px}
.lt-title{font-family:var(--serif); font-size:clamp(19px,2.2vw,24px); color:var(--ink); display:block; line-height:1.15}
.lt-meta{font-size:12.5px; color:var(--muted); letter-spacing:.04em}
.go{color:var(--gold); font-size:20px; opacity:0; transform:translateX(-6px); transition:.3s var(--ease)}
.lesson-row:hover .go{opacity:1; transform:none}

/* lesson */
.back{display:inline-block; font-size:13px; letter-spacing:.08em; color:var(--muted); margin-bottom:18px}
.back:hover{color:var(--ink)}
.lesson .page-title{margin-bottom:22px}
.player{position:relative; aspect-ratio:16/9; background:#1c1815; overflow:hidden; margin-bottom:26px}
.player-frame{position:absolute; inset:0; width:100%; height:100%}
.player-placeholder{position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:10px; color:rgba(244,238,229,.7); text-align:center; padding:20px}
.pp-icon{font-size:40px; color:rgba(244,238,229,.5)}
.player-placeholder small{font-size:12.5px; color:rgba(244,238,229,.45); max-width:36ch}
/* водяной знак */
.wm{position:absolute; inset:0; display:flex; flex-wrap:wrap; align-content:space-around; justify-content:space-around; gap:6%; padding:8%; pointer-events:none; transform:rotate(-24deg) scale(1.4); opacity:.10}
.wm span{color:#fff; font-size:13px; letter-spacing:.1em; white-space:nowrap}
.lesson-desc{font-family:var(--serif); font-size:clamp(17px,1.9vw,21px); line-height:1.5; color:var(--ink2); max-width:62ch; margin-bottom:26px}

.materials{border-top:1px solid var(--line); padding-top:22px; margin-bottom:30px}
.materials h3{font-size:20px; margin-bottom:14px}
.materials ul{list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px}
.material{display:inline-flex; align-items:center; gap:12px; padding:12px 16px; border:1px solid var(--line2); background:var(--paper); transition:border-color .25s, transform .25s}
.material:hover{border-color:var(--gold); transform:translateX(3px)}
.material-ext{font-size:10.5px; font-weight:700; letter-spacing:.08em; color:#fff; background:var(--gold-ink); padding:4px 8px}

.lesson-nav{display:flex; justify-content:space-between; gap:16px; border-top:1px solid var(--line); padding-top:22px; font-family:var(--serif); font-size:16px}
.lesson-nav a:hover{color:var(--gold-ink)}
.ln-next{margin-left:auto; text-align:right}

/* admin */
.added{background:#eef3ea; border:1px solid #b8caa8; padding:16px 18px; margin-bottom:24px; display:flex; flex-direction:column; gap:6px}
.added-label{font-size:14px}
.added-code{font-family:ui-monospace,Menlo,monospace; font-size:22px; letter-spacing:.06em; color:var(--ink); font-weight:600}
.added-hint{font-size:12.5px; color:var(--muted)}
.admin-add{margin-bottom:28px}
.form-row{display:flex; gap:10px; flex-wrap:wrap}
.form-row input{flex:1; min-width:180px; padding:12px 14px; border:1px solid var(--line2); background:#fff; font-size:15px}
.form-row input:focus{outline:none; border-color:var(--gold)}
.tbl{width:100%; border-collapse:collapse; font-size:14px}
.tbl th{text-align:left; font-weight:600; font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--muted); padding:10px 12px; border-bottom:1px solid var(--line2)}
.tbl td{padding:12px; border-bottom:1px solid var(--line); vertical-align:middle}
.tbl tr.off{opacity:.5}
.mono{font-family:ui-monospace,Menlo,monospace; letter-spacing:.04em}
.badge{font-size:11px; padding:3px 9px; letter-spacing:.05em}
.badge.on{background:#e4efe0; color:#3d6b2e}
.badge.no{background:#efe0e0; color:#8a3b3b}
.acts{display:flex; gap:6px; flex-wrap:wrap}
.acts form{margin:0}
.mini{font-size:12px; padding:6px 10px; border:1px solid var(--line2); background:#fff; cursor:pointer; transition:.2s}
.mini:hover{border-color:var(--ink)}
.mini.danger:hover{border-color:#a33; color:#a33}
.empty{padding:24px 0}

@media (max-width:600px){
  .lesson-row{grid-template-columns:34px 1fr auto; gap:12px}
  .tbl thead{display:none}
  .tbl,.tbl tbody,.tbl tr,.tbl td{display:block; width:100%}
  .tbl tr{border-bottom:2px solid var(--line2); padding:8px 0}
  .tbl td{border:0; padding:4px 0}
  .acts{padding-top:8px}
}

/* ================= ВИЗУАЛ-АПГРЕЙД (демо-наполнение) ================= */

/* hero кабинета с обложкой курса */
.course-hero{position:relative; margin:calc(-1 * clamp(32px,5vw,64px)) calc(-1 * clamp(20px,4vw,44px)) clamp(30px,4vw,48px);
  min-height:clamp(280px,40vh,420px); display:flex; align-items:flex-end;
  background-image:linear-gradient(90deg,rgba(20,14,9,.84),rgba(20,14,9,.5) 48%,rgba(20,14,9,.2)),linear-gradient(0deg,rgba(20,14,9,.55),transparent 60%),var(--cover);
  background-size:cover; background-position:center 26%}
.course-hero-in{padding:clamp(28px,5vw,56px) clamp(20px,4vw,44px); max-width:var(--maxw); width:100%; margin:0 auto}
.eyebrow.light{color:rgba(255,244,230,.85)}
.course-hero-title{font-family:var(--display); color:#fff; font-size:clamp(28px,4.4vw,52px); line-height:1.05; letter-spacing:-.01em; max-width:20ch}
.course-hero-sub{color:rgba(255,250,243,.9); margin-top:14px; max-width:60ch; font-size:clamp(15px,1.7vw,19px); font-family:var(--serif)}

/* сетка карточек уроков */
.lgrid{display:grid; grid-template-columns:repeat(auto-fill,minmax(270px,1fr)); gap:20px}
.lcard{display:flex; flex-direction:column; background:var(--paper); border:1px solid var(--line);
  transition:border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease)}
.lcard:hover{border-color:var(--gold); transform:translateY(-4px); box-shadow:0 18px 40px rgba(34,30,26,.12)}
.lcard-thumb{position:relative; aspect-ratio:16/10; background-size:cover; background-position:center; overflow:hidden}
.lcard-thumb::after{content:""; position:absolute; inset:0; background:linear-gradient(0deg,rgba(20,14,9,.5),transparent 55%); opacity:.6; transition:opacity .3s}
.lcard:hover .lcard-thumb::after{opacity:.85}
.lcard-num{position:absolute; top:12px; left:12px; z-index:2; font-family:var(--serif); font-style:italic; font-size:15px; color:#fff; background:rgba(20,14,9,.45); backdrop-filter:blur(4px); width:34px; height:34px; display:flex; align-items:center; justify-content:center; border-radius:50%}
.lcard-play{position:absolute; z-index:2; left:50%; top:50%; transform:translate(-50%,-50%) scale(.8); color:#fff; font-size:30px; opacity:0; transition:.3s var(--ease)}
.lcard:hover .lcard-play{opacity:.95; transform:translate(-50%,-50%) scale(1)}
.lcard-body{padding:16px 18px 20px; display:flex; flex-direction:column; gap:8px}
.lcard-title{font-family:var(--serif); font-size:clamp(18px,1.9vw,22px); line-height:1.18; color:var(--ink)}
.lcard-meta{display:flex; gap:7px; align-items:center; font-size:12.5px; color:var(--muted); letter-spacing:.03em}
.lcard-meta .dot{opacity:.5}

/* плеер: видео/iframe */
.player video.player-frame{position:absolute; inset:0; width:100%; height:100%; object-fit:cover; background:#000}
.player-placeholder{position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:12px; text-align:center; padding:20px;
  background-size:cover; background-position:center}
.player-placeholder::before{content:""; position:absolute; inset:0; background:rgba(18,13,9,.62)}
.pp-badge{position:relative; z-index:1; display:inline-flex; align-items:center; gap:10px; color:#fff; font-family:var(--serif); font-size:clamp(18px,2.2vw,24px); background:rgba(20,14,9,.35); border:1px solid rgba(255,255,255,.35); padding:12px 22px; border-radius:40px}
.pp-icon{font-size:.9em}
.player-placeholder small{position:relative; z-index:1; color:rgba(255,250,243,.7); font-size:12.5px}

/* материал-кнопка: стрелка */
.material{position:relative}
.material-go{margin-left:auto; color:var(--gold); transition:transform .25s}
.material:hover .material-go{transform:translateX(3px)}

/* навигация урок: направление + название */
.lesson-nav a{display:flex; flex-direction:column; gap:3px; max-width:46%}
.ln-dir{font-family:var(--sans); font-size:11px; letter-spacing:.14em; text-transform:uppercase; color:var(--muted)}
.ln-name{font-family:var(--serif); font-size:16px; color:var(--ink); line-height:1.2}
.ln-next{text-align:right; margin-left:auto}

/* материал-конспект */
.note{position:relative; max-width:70ch; margin:0 auto; padding:8px 0 20px}
.note-body{position:relative; z-index:1}
.note-body h2{font-family:var(--display); font-size:clamp(24px,3vw,34px); line-height:1.1; margin:0 0 18px}
.note-body p{font-family:var(--serif); font-size:clamp(17px,1.9vw,20px); line-height:1.6; color:var(--ink2); margin:0 0 16px}
.note-body ul,.note-body ol{font-family:var(--serif); font-size:clamp(16px,1.8vw,19px); line-height:1.6; color:var(--ink2); margin:0 0 16px; padding-left:24px}
.note-body li{margin:7px 0}
.note-body b{color:var(--ink)}
/* водяной знак поверх конспекта - клеймо по почте */
.note-wm{position:absolute; inset:-40px 0; display:flex; flex-wrap:wrap; align-content:space-around; justify-content:space-around; gap:4% 6%; pointer-events:none; transform:rotate(-24deg) scale(1.3); opacity:.05; z-index:0}
.note-wm span{color:var(--ink); font-size:13px; letter-spacing:.1em; white-space:nowrap}

@media (max-width:600px){
  .course-hero{margin-left:calc(-1 * 20px); margin-right:calc(-1 * 20px)}
  .lgrid{grid-template-columns:1fr 1fr; gap:12px}
  .lcard-body{padding:12px 12px 16px}
}
@media (max-width:420px){ .lgrid{grid-template-columns:1fr} }