/* ==========================================================================
   Lumen v3 · Components (продолжение design-system.css)
   Переиспользуемые блоки для всех экранов прототипа
   ========================================================================== */

/* --------------------------------------------------------------------------
   15 · DASHBOARD CARDS (общие для student/home)
   -------------------------------------------------------------------------- */
.c-hdr{display:flex;justify-content:space-between;align-items:baseline;padding-bottom:12px;border-bottom:1px solid var(--line)}
.c-title{font-family:var(--display);font-size:16px;font-weight:500;letter-spacing:-0.01em}
.c-title em{font-style:italic;color:var(--accent)}
.c-tag{font-family:var(--mono);font-size:9px;letter-spacing:0.12em;text-transform:uppercase;color:var(--muted)}

/* --------------------------------------------------------------------------
   16 · LESSON UNIT (курс, каталог)
   -------------------------------------------------------------------------- */
.unit-hdr{background:var(--surface-warm);border:1px solid var(--line);border-radius:14px;padding:18px 24px;display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:center;margin-bottom:14px}
.uh-num{font-family:var(--display);font-style:italic;font-size:40px;font-weight:400;color:var(--accent);line-height:1;letter-spacing:-0.03em}
.uh-content{min-width:0}
.uh-lbl{font-family:var(--mono);font-size:10px;letter-spacing:0.18em;text-transform:uppercase;color:var(--muted);margin-bottom:4px;font-weight:600}
.uh-title{font-family:var(--display);font-size:22px;font-weight:500;letter-spacing:-0.015em;line-height:1.1}
.uh-title em{font-style:italic;color:var(--accent)}
.uh-desc{font-size:12.5px;color:var(--ink-soft);margin-top:4px;line-height:1.4}
.uh-progress{text-align:right;font-family:var(--mono);font-size:10px;color:var(--muted);letter-spacing:0.05em;line-height:1.5}
.uh-progress b{color:var(--ink);font-family:var(--display);font-style:italic;font-size:16px;font-weight:500;display:block}

/* --------------------------------------------------------------------------
   17 · LESSON CARD (в каталоге)
   -------------------------------------------------------------------------- */
.lesson-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:14px;cursor:pointer;transition:all var(--dur-base) var(--ease);position:relative;overflow:hidden;text-decoration:none;color:inherit}
.lesson-card:hover{border-color:var(--accent-line);transform:translateY(-2px)}

.lc-hdr{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.lc-type{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:9px;letter-spacing:0.15em;text-transform:uppercase;color:var(--muted);font-weight:600}
.lc-type.live{color:var(--accent)}
.lc-type.ai{color:var(--info)}
.lc-type.mixed{color:var(--ok)}
.lc-type::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.lc-status{font-family:var(--mono);font-size:9px;letter-spacing:0.1em;text-transform:uppercase;color:var(--ok);font-weight:600}

.lc-title-block{flex:1;min-width:0}
.lc-num{font-family:var(--mono);font-size:10px;letter-spacing:0.1em;color:var(--muted);margin-bottom:6px;font-weight:600;text-transform:uppercase}
.lc-title{font-family:var(--display);font-size:19px;font-weight:500;letter-spacing:-0.01em;line-height:1.2;margin-bottom:4px}
.lc-title em{font-style:italic;color:var(--accent)}
.lc-subtitle{font-size:12.5px;color:var(--ink-soft);line-height:1.45}

.lc-tags{display:flex;flex-wrap:wrap;gap:5px;padding-top:4px}
.lc-tag{font-family:var(--mono);font-size:8px;letter-spacing:0.12em;text-transform:uppercase;padding:3px 8px;background:var(--page-tint);border-radius:100px;color:var(--muted);font-weight:600}
.lc-tag.grammar{background:var(--info-soft);color:var(--info)}
.lc-tag.vocab{background:var(--accent-soft);color:var(--accent)}

.lc-meta{display:flex;gap:16px;padding:10px 0;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);font-family:var(--mono);font-size:10px;color:var(--muted);letter-spacing:0.03em}
.lc-meta span{display:flex;align-items:center;gap:6px}
.lc-meta span b{color:var(--ink);font-weight:600;font-family:var(--display);font-style:italic;font-size:12px}

.lesson-card.done{opacity:0.75}
.lesson-card.done .lc-title{color:var(--ink-soft)}
.lesson-card.now{background:var(--accent-soft);border-color:var(--accent);border-width:1.5px}
.lesson-card.now .lc-title{color:var(--ink)}

.lc-now-badge{position:absolute;top:14px;right:14px;background:var(--accent);color:#fff;padding:3px 9px;border-radius:100px;font-family:var(--mono);font-size:9px;letter-spacing:0.15em;text-transform:uppercase;font-weight:700;z-index:2}

.lc-teacher-row{display:flex;align-items:center;gap:10px;padding:10px;background:var(--accent-soft);border:1px solid var(--accent-line);border-radius:10px;margin-top:4px}
.lc-teacher-ava{width:26px;height:26px;border-radius:50%;background:var(--accent);display:grid;place-items:center;font-family:var(--display);font-size:11px;font-weight:500;color:#fff;font-style:italic;flex-shrink:0}
.lc-teacher-name{font-size:11px;color:var(--ink-soft);line-height:1.3}
.lc-teacher-name b{color:var(--ink);font-weight:600;display:block}
.lc-teacher-time{margin-left:auto;font-family:var(--mono);font-size:10px;color:var(--accent);font-weight:700;letter-spacing:0.1em}

/* --------------------------------------------------------------------------
   18 · VIDEO LESSON
   -------------------------------------------------------------------------- */
.video-layout{display:grid;grid-template-columns:1fr 360px;min-height:100vh;background:var(--dark)}
.video-main{display:flex;flex-direction:column;background:var(--dark);position:relative}
.lesson-topbar{padding:14px 24px;background:rgba(255,255,255,0.03);border-bottom:1px solid rgba(255,255,255,0.06);display:flex;justify-content:space-between;align-items:center;gap:20px;color:#fafafa}
.ltb-l{display:flex;align-items:center;gap:16px}
.ltb-back{width:28px;height:28px;border-radius:8px;background:rgba(255,255,255,0.06);display:grid;place-items:center;font-family:var(--display);font-style:italic;font-size:14px;color:#a1a1aa;text-decoration:none}
.ltb-back:hover{color:#fff;background:rgba(255,255,255,0.1)}
.ltb-info{display:flex;flex-direction:column;gap:2px}
.ltb-name{font-family:var(--display);font-size:17px;font-weight:500;letter-spacing:-0.01em;line-height:1.1}
.ltb-name em{font-style:italic;color:var(--accent-line)}
.ltb-meta{font-family:var(--mono);font-size:10px;color:#71717a;letter-spacing:0.08em;text-transform:uppercase}
.ltb-live{font-family:var(--mono);font-size:10px;letter-spacing:0.15em;text-transform:uppercase;color:var(--accent);font-weight:700;padding:4px 10px;background:rgba(194,65,12,0.15);border:1px solid rgba(194,65,12,0.3);border-radius:100px;display:flex;align-items:center;gap:6px}
.ltb-live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulse 1.5s ease-in-out infinite}
.ltb-timer{font-family:var(--display);font-size:17px;font-weight:500;font-style:italic;color:#fafafa}

/* --------------------------------------------------------------------------
   19 · MINI LESSON (с AI)
   -------------------------------------------------------------------------- */
.mini-layout{display:grid;grid-template-columns:1fr 320px;min-height:100vh}
.mini-main{padding:28px 40px;display:flex;flex-direction:column;gap:24px;overflow:hidden}
.mini-side{background:var(--surface-warm);border-left:1px solid var(--line);padding:28px 24px;display:flex;flex-direction:column;gap:22px}

.breadcrumb{font-family:var(--mono);font-size:10px;letter-spacing:0.1em;color:var(--muted);display:flex;align-items:center;gap:8px}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .cur{color:var(--ink);font-weight:600}

.lh-hdr{padding-bottom:20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:flex-start;gap:28px}
.lh-l{flex:1;min-width:0}
.lh-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.lh-num{font-family:var(--display);font-style:italic;font-size:15px;color:var(--muted);font-weight:500}
.lh-chip{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:9px;letter-spacing:0.15em;text-transform:uppercase;padding:4px 10px;background:var(--info-soft);color:var(--info);border-radius:100px;font-weight:700}
.lh-chip::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--info)}
.lh-title{font-family:var(--display);font-size:36px;font-weight:400;letter-spacing:-0.03em;line-height:1}
.lh-title em{font-style:italic;color:var(--accent)}
.lh-sub{font-size:14px;color:var(--ink-soft);margin-top:8px;line-height:1.5;max-width:580px}
.lh-r{text-align:right;font-family:var(--mono);font-size:10px;color:var(--muted);letter-spacing:0.05em;line-height:1.6;flex-shrink:0}
.lh-r b{color:var(--ink);font-family:var(--display);font-style:italic;font-size:20px;font-weight:500;display:block;line-height:1}

.lesson-steps{display:flex;gap:6px;padding:10px 0;border-bottom:1px solid var(--line)}
.ls{flex:1;min-width:0}
.ls-bar{height:3px;background:var(--page-tint);border-radius:100px;margin-bottom:6px;overflow:hidden}
.ls.done .ls-bar{background:var(--ok)}
.ls.now .ls-bar{background:var(--accent);position:relative}
.ls.now .ls-bar::after{content:"";position:absolute;right:45%;top:-2px;width:7px;height:7px;background:var(--accent);border-radius:50%;border:2px solid var(--page)}
.ls-lbl{font-family:var(--mono);font-size:9px;letter-spacing:0.1em;text-transform:uppercase;color:var(--muted);font-weight:600}
.ls.done .ls-lbl{color:var(--ok)}
.ls.now .ls-lbl{color:var(--accent)}

/* --------------------------------------------------------------------------
   20 · MIRA BLOCK (AI voice practice)
   -------------------------------------------------------------------------- */
.mira-block{background:var(--dark);color:#fafafa;border-radius:16px;padding:28px;display:flex;flex-direction:column;gap:18px;position:relative;overflow:hidden}
.mira-block::before{content:"";position:absolute;top:-80px;right:-80px;width:260px;height:260px;background:var(--accent);border-radius:50%;opacity:0.12;pointer-events:none}
.mira-hdr{display:flex;justify-content:space-between;align-items:flex-start;position:relative;z-index:2;gap:20px}
.mira-lbl{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:10px;letter-spacing:0.18em;text-transform:uppercase;color:var(--accent-line);font-weight:700;margin-bottom:10px}
.mira-lbl::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.mira-title{font-family:var(--display);font-size:24px;font-weight:500;letter-spacing:-0.02em;line-height:1.15}
.mira-title em{font-style:italic;color:var(--accent-line)}
.mira-sub{font-size:13px;color:#a1a1aa;margin-top:8px;line-height:1.5;max-width:480px}

.mira-orb{width:48px;height:48px;border-radius:50%;background:radial-gradient(circle at 30% 30%, var(--accent) 0%, #7c2d12 60%, var(--dark) 100%);box-shadow:0 0 30px rgba(194,65,12,0.4);flex-shrink:0;position:relative}
.mira-orb::after{content:"";position:absolute;inset:-4px;border:1px solid rgba(194,65,12,0.3);border-radius:50%;animation:miraPulse 3s ease-in-out infinite}
@keyframes miraPulse{0%,100%{opacity:0.3;transform:scale(1)}50%{opacity:0.7;transform:scale(1.1)}}

/* --------------------------------------------------------------------------
   21 · TEACHER DASHBOARD
   -------------------------------------------------------------------------- */
.teacher-sidebar-user{background:var(--info-soft);border-color:rgba(14,116,144,0.3)}
.teacher-sidebar-ava{background:var(--info-soft);color:var(--info);border-color:rgba(14,116,144,0.3)}

.lesson-row{display:grid;grid-template-columns:80px 1fr 1fr auto;gap:24px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line-soft);cursor:pointer;text-decoration:none;color:inherit;transition:background var(--dur-fast) var(--ease)}
.lesson-row:hover{background:var(--surface-warm);margin:0 -12px;padding:18px 12px;border-radius:12px;border-bottom-color:transparent}
.lesson-row.next{background:var(--surface-warm);margin:0 -16px 4px;padding:18px 16px;border-radius:12px;border-bottom:none}
.lesson-row.highlighted{background:var(--accent-soft);margin:0 -16px;padding:18px 16px;border-radius:12px;border-bottom:none}
.lr-time{font-family:var(--display);font-weight:500;font-size:22px;letter-spacing:-0.01em;line-height:1}
.lr-time em{font-style:italic;color:var(--accent)}
.lr-time .lr-duration{display:block;font-family:var(--mono);font-size:9px;letter-spacing:0.1em;color:var(--muted);margin-top:4px;font-weight:500;text-transform:uppercase}
.lr-student{display:flex;align-items:center;gap:12px}
.lr-ava{width:36px;height:36px;border-radius:50%;background:var(--page-tint);display:grid;place-items:center;font-family:var(--display);font-size:14px;font-weight:500;color:var(--ink-soft);flex-shrink:0;font-style:italic}
.lr-ava.anna{background:var(--accent);color:#fff;border:1px solid var(--accent)}
.lr-student-info{min-width:0}
.lr-name{font-size:14px;font-weight:600;line-height:1.2}
.lr-detail{font-family:var(--mono);font-size:10px;color:var(--muted);margin-top:3px;letter-spacing:0.05em}
.lr-topic{font-family:var(--display);font-size:15px;font-weight:500;letter-spacing:-0.01em}
.lr-topic em{font-style:italic;color:var(--accent)}
.lr-topic-src{font-family:var(--mono);font-size:9px;color:var(--muted);letter-spacing:0.1em;margin-top:3px;text-transform:uppercase}
.lr-status{display:flex;align-items:center;gap:12px;justify-self:end}
.lr-signal{font-family:var(--mono);font-size:9px;letter-spacing:0.12em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:5px}
.lr-signal.ready{color:var(--ok)}
.lr-signal::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}

/* --------------------------------------------------------------------------
   22 · MARKETING PAGE LAYOUT
   -------------------------------------------------------------------------- */
.mk-page{background:var(--page)}
.mk-hero{padding:80px 48px 56px;max-width:var(--maxw);margin:0 auto}
.mk-kicker{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:10px;text-transform:uppercase;letter-spacing:0.18em;color:var(--accent);padding:6px 12px;border:1px solid var(--accent-line);border-radius:100px;background:var(--accent-soft);margin-bottom:28px;font-weight:600}
.mk-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.mk-title{font-family:var(--display);font-size:80px;font-weight:400;line-height:0.96;letter-spacing:-0.04em;max-width:1000px}
.mk-title em{font-style:italic;color:var(--accent)}
.mk-lede{font-size:19px;line-height:1.5;color:var(--ink-soft);max-width:720px;margin-top:32px;font-family:var(--display);font-weight:400}
.mk-lede em{font-style:italic;color:var(--accent)}
.mk-lede b{color:var(--ink);font-weight:500}

.mk-section{padding:80px 48px;max-width:var(--maxw);margin:0 auto}
.mk-section-hdr{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:48px;padding-bottom:24px;border-bottom:1px solid var(--line)}
.mk-section-title{font-family:var(--display);font-size:52px;font-weight:400;letter-spacing:-0.03em;line-height:1;max-width:720px}
.mk-section-title em{font-style:italic;color:var(--accent)}
.mk-section-meta{font-family:var(--mono);font-size:10px;text-transform:uppercase;letter-spacing:0.15em;color:var(--muted);text-align:right;line-height:1.8;max-width:280px}
.mk-section-meta b{color:var(--ink);display:block;margin-bottom:3px;font-weight:600}

.mk-prose{font-size:17px;line-height:1.75;color:var(--ink-soft);max-width:720px}
.mk-prose p{margin-bottom:24px}
.mk-prose p:last-child{margin-bottom:0}
.mk-prose b{color:var(--ink);font-weight:600}
.mk-prose em{font-family:var(--display);font-style:italic;color:var(--accent);font-weight:500}
.mk-prose h3{font-family:var(--display);font-size:28px;font-weight:500;letter-spacing:-0.02em;line-height:1.15;margin:40px 0 16px;color:var(--ink)}
.mk-prose h3 em{font-style:italic;color:var(--accent)}
.mk-prose ul{list-style:none;padding:0;margin:0 0 24px}
.mk-prose ul li{padding:10px 0 10px 24px;position:relative;border-bottom:1px solid var(--line-soft)}
.mk-prose ul li::before{content:"—";position:absolute;left:0;color:var(--accent);font-family:var(--display);font-style:italic;font-weight:600}

.mk-quote{background:var(--ink);color:var(--page);padding:56px;border-radius:20px;margin:48px 0;position:relative;overflow:hidden}
.mk-quote::before{content:"";position:absolute;top:-100px;right:-100px;width:400px;height:400px;background:var(--accent);border-radius:50%;opacity:0.1;pointer-events:none}
.mk-quote-text{font-family:var(--display);font-size:40px;font-weight:400;line-height:1.15;letter-spacing:-0.025em;position:relative;z-index:2;max-width:800px}
.mk-quote-text em{font-style:italic;color:var(--accent-line)}
.mk-quote-attr{font-family:var(--mono);font-size:11px;letter-spacing:0.18em;text-transform:uppercase;color:var(--accent-line);margin-top:32px;font-weight:600;position:relative;z-index:2}

.mk-three{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mk-cell{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:28px;display:flex;flex-direction:column;gap:14px;min-height:280px}
.mk-cell-num{font-family:var(--mono);font-size:10px;letter-spacing:0.2em;color:var(--accent);font-weight:700}
.mk-cell-glyph{font-family:var(--display);font-style:italic;font-size:32px;color:var(--accent);line-height:1;font-weight:500;margin-bottom:4px}
.mk-cell-title{font-family:var(--display);font-size:22px;font-weight:500;letter-spacing:-0.015em;line-height:1.15}
.mk-cell-title em{font-style:italic;color:var(--accent)}
.mk-cell-body{font-size:14px;line-height:1.6;color:var(--ink-soft);flex:1}
.mk-cell-body b{color:var(--ink);font-weight:600}

.mk-cta-section{background:var(--ink);color:var(--page);padding:80px 48px;margin-top:64px;position:relative;overflow:hidden}
.mk-cta-section::before{content:"";position:absolute;top:-150px;right:-150px;width:500px;height:500px;background:var(--accent);border-radius:50%;opacity:0.1;pointer-events:none}
.mk-cta-inner{max-width:var(--maxw);margin:0 auto;position:relative;z-index:2;display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:center}
.mk-cta-title{font-family:var(--display);font-size:56px;font-weight:400;line-height:1;letter-spacing:-0.03em;margin-bottom:20px}
.mk-cta-title em{font-style:italic;color:var(--accent-line)}
.mk-cta-sub{font-size:16px;line-height:1.6;color:#d4d4d8;max-width:480px}
.mk-cta-sub b{color:#fff;font-weight:500}
.mk-cta-buttons{display:flex;gap:16px;flex-wrap:wrap}

@media (max-width:1100px){
  .mk-hero,.mk-section,.mk-cta-section{padding:56px 24px}
  .mk-title{font-size:48px}
  .mk-section-title,.mk-cta-title{font-size:32px}
  .mk-section-hdr{flex-direction:column;align-items:flex-start}
  .mk-three{grid-template-columns:1fr}
  .mk-cta-inner{grid-template-columns:1fr;gap:32px}
  .mk-quote{padding:32px}
  .mk-quote-text{font-size:28px}
  .video-layout{grid-template-columns:1fr}
  .mini-layout{grid-template-columns:1fr}
  .mini-side{display:none}
}