/* ============================================================
   Экран ЗАГРУЗКИ — hero + upload-карточка (из demo_v3_corporate_blue.html).
   Партиал к design-system.css. Переменные палитры берутся оттуда.
   ============================================================ */

/* — hero — */
.hero{padding:48px 0 40px;border-bottom:1px solid var(--border)}
.hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:center}
.hero h1{font-size:40px;font-weight:700;letter-spacing:-.025em;line-height:1.12;margin-bottom:18px}
.hero-lede{font-size:16px;color:var(--text-sec);line-height:1.6;margin-bottom:20px;max-width:560px}
.hero-goal{padding:16px 20px;background:var(--bg-soft);border:1px solid var(--border);border-left:3px solid var(--primary);border-radius:6px;font-size:14px;color:var(--text-sec);line-height:1.6}
.hero-goal b{color:var(--text);font-weight:600}

/* — hero CTA: demo-прогон — */
.hero-cta{margin-top:24px;display:inline-flex;align-items:center;gap:14px;padding:12px 22px 12px 12px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:white;border:none;border-radius:12px;cursor:pointer;font-family:inherit;position:relative;overflow:hidden;box-shadow:0 8px 24px rgba(0,82,204,.28),0 2px 6px rgba(0,82,204,.18);transition:transform .2s,box-shadow .2s}
.hero-cta:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 14px 32px rgba(0,82,204,.38),0 4px 10px rgba(0,82,204,.22)}
.hero-cta:active:not(:disabled){transform:translateY(0)}
.hero-cta:disabled{opacity:.6;cursor:progress}
.hero-cta::before{content:'';position:absolute;top:0;bottom:0;width:120px;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.28) 50%,transparent 100%);transform:translateX(-200px);animation:heroShimmer 3.2s ease-in-out infinite;pointer-events:none}
@keyframes heroShimmer{0%{transform:translateX(-200px)}55%{transform:translateX(420px)}100%{transform:translateX(420px)}}
.hero-cta-play{width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:.25s;position:relative;z-index:1}
.hero-cta:hover:not(:disabled) .hero-cta-play{background:rgba(255,255,255,.28);transform:scale(1.06)}
.hero-cta-play svg{margin-left:2px}
.hero-cta-text{display:flex;flex-direction:column;align-items:flex-start;text-align:left;position:relative;z-index:1;line-height:1.2}
.hero-cta-t{font-size:15px;font-weight:600;letter-spacing:-.005em}
.hero-cta-s{font-size:11px;opacity:.82;font-family:var(--font-mono);letter-spacing:.04em;margin-top:3px}
.hero-cta-arrow{margin-left:6px;font-size:18px;font-weight:300;transition:transform .25s;position:relative;z-index:1;opacity:.85}
.hero-cta:hover:not(:disabled) .hero-cta-arrow{transform:translateX(5px);opacity:1}

/* — upload-карточка — */
.upload{background:white;border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);overflow:hidden}
.upload-head{padding:14px 20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;background:var(--bg-soft)}
.upload-title{font-size:13px;font-weight:600;color:var(--text-sec)}
.upload-body{padding:24px}
.upload-note{margin-top:14px;padding-top:12px;border-top:1px solid var(--border-soft);font-size:11px;color:var(--text-mute);font-family:var(--font-mono);letter-spacing:.03em;display:flex;justify-content:space-between;gap:12px}

/* — drop-зона: чуть выразительнее, мягкая подсветка на hover/drag — */
.dropzone{position:relative}
.dropzone .drop-icon{transition:transform .2s,background .2s,color .2s}
.dropzone:hover .drop-icon,.dropzone.drag .drop-icon{transform:translateY(-2px) scale(1.04);background:var(--primary);color:white}
.dropzone.drag{box-shadow:0 0 0 4px var(--primary-soft)}

/* — формат-чипы (как в demo_v3) — */
.fmt{padding:3px 10px;background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius-xs);font-family:var(--font-mono);font-size:11px;color:var(--text-sec);letter-spacing:.02em;transition:background .15s,border-color .15s,color .15s,transform .15s}
.dropzone:hover ~ .formats .fmt:not(.off),.dropzone.drag ~ .formats .fmt:not(.off){border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.fmt.off{color:var(--text-mute);text-decoration:line-through;background:transparent}

/* — список выбранных файлов — */
.file-list{list-style:none;margin:16px 0 0;display:flex;flex-direction:column;gap:6px}
.file-row{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--bg-soft);border:1px solid var(--border-soft);border-radius:var(--radius-sm);font-size:12px;animation:upRowIn .26s ease both}
.file-row .fname{font-weight:500;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-row .fsize{font-family:var(--font-mono);color:var(--text-mute);font-size:11px;margin-left:auto}
.file-row .fdrop{cursor:pointer;color:var(--text-mute);font-size:16px;line-height:1;padding:0 4px;border-radius:4px;transition:color .15s,background .15s}
.file-row .fdrop:hover{color:var(--danger);background:var(--danger-soft)}
@keyframes upRowIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ============================================================
   STAGED-СТЕППЕР ПРОГОНА (горизонтальный, плавные CSS-transitions)
   Загрузка → Диагностика → Извлечение → Сборка IR → Расчёт
   Самостоятельный неймспейс `.up-*` (не пересекается с .stepper/.recog).
   ============================================================ */
.up-run{margin-top:18px;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:white;opacity:0;transform:translateY(6px);transition:opacity .3s ease,transform .3s ease,border-color .25s}
.up-run.enter{opacity:1;transform:none}
.up-run[data-state="done"]{border-color:var(--ok-soft)}
.up-run[data-state="fail"]{border-color:var(--danger-border)}

.up-run-head{display:flex;align-items:center;gap:10px;padding:11px 16px;background:var(--bg-soft);border-bottom:1px solid var(--border);font-size:12px;font-weight:600;color:var(--text-sec)}
.up-run-dot{width:9px;height:9px;border-radius:50%;background:var(--primary);flex-shrink:0;box-shadow:0 0 0 0 var(--primary-soft);animation:upPulse 1.4s ease-in-out infinite}
.up-run-dot.done{background:var(--success);animation:none}
.up-run-dot.fail{background:var(--danger);animation:none}
.up-run-title{flex:1}
.up-run-meta{color:var(--text-mute);font-size:11px}
@keyframes upPulse{0%{box-shadow:0 0 0 0 rgba(0,82,204,.35)}70%{box-shadow:0 0 0 7px rgba(0,82,204,0)}100%{box-shadow:0 0 0 0 rgba(0,82,204,0)}}

/* горизонтальная лента шагов с анимируемой линией прогресса */
.up-stepper{list-style:none;margin:0;padding:22px 22px 18px;display:flex;align-items:flex-start;gap:0;position:relative}
.up-stepper-track{position:absolute;top:35px;left:calc(22px + 10%);right:calc(22px + 10%);height:2px;background:var(--border);border-radius:2px;overflow:hidden}
.up-stepper-fill{display:block;height:100%;width:0;background:var(--gradient-primary);border-radius:2px;transition:width .5s cubic-bezier(.4,0,.2,1)}

.up-step{flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;gap:7px;text-align:center;position:relative;z-index:1}
.up-step-mark{position:relative;width:26px;height:26px;border-radius:50%;border:2px solid var(--border);background:var(--bg);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:border-color .25s,background .25s,box-shadow .25s,transform .25s}
.up-step-spin{position:absolute;inset:-2px;border-radius:50%;border:2px solid transparent;opacity:0;transition:opacity .2s}
.up-step-tick{font-size:13px;font-weight:700;line-height:1;color:white;opacity:0;transform:scale(.5);transition:opacity .25s,transform .25s}
.up-step-label{font-size:12px;font-weight:500;color:var(--text-mute);line-height:1.25;max-width:96px;transition:color .25s}
.up-step-meta{font-size:10px;color:var(--text-mute);letter-spacing:.02em;opacity:.85;line-height:1.3;max-width:104px}

.up-step.active .up-step-mark{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-soft)}
.up-step.active .up-step-spin{opacity:1;border-top-color:var(--primary);animation:spin .8s linear infinite}
.up-step.active .up-step-label{color:var(--primary);font-weight:600}
.up-step.done .up-step-mark{border-color:var(--success);background:var(--success)}
.up-step.done .up-step-tick{opacity:1;transform:scale(1)}
.up-step.done .up-step-label{color:var(--text-sec)}
.up-step.fail .up-step-mark{border-color:var(--danger);background:var(--danger)}
.up-step.fail .up-step-tick{opacity:0}
.up-step.fail .up-step-mark::after{content:'!';color:white;font-size:13px;font-weight:700;line-height:1}
.up-step.fail .up-step-label{color:var(--danger)}

.up-run-alert{margin:0 16px 14px}

@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero h1{font-size:32px}
}
@media (max-width:560px){
  .up-stepper{flex-wrap:wrap;gap:16px 0;padding:18px 14px}
  .up-stepper-track{display:none}
  .up-step{flex:0 0 33.333%}
}
@media (prefers-reduced-motion:reduce){
  .up-run,.up-step-mark,.up-stepper-fill,.file-row{transition:none;animation:none}
  .up-run-dot{animation:none}
}