/* MiraiStep Academy — mobile-first */
:root {
  --bg: #F7F6F1;            /* светлый фон в тоне gray-light лендинга */
  --card: #ffffff;
  --text: #15221F;          /* text-primary Mirai Step */
  --muted: #4a615c;         /* text-secondary */
  --primary: #0F6E56;       /* фирменный teal Mirai Step */
  --primary-dark: #085041;  /* teal-deep */
  --primary-light: #E1F5EE; /* teal-light */
  --ok: #27500A;
  --err: #993C1D;           /* coral */
  --border: #E3E1D8;
  --radius: 12px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

/* --- Топбар --- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 16px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 17px; color: var(--text); text-decoration: none; }
.brand-logo { height: 34px; width: auto; display: block; }
.brand-text { color: var(--primary); letter-spacing: .3px; }
.topbar nav { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.topbar nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.topbar nav a:hover { color: var(--primary); }
.username { color: var(--text); font-weight: 600; font-size: 14px; }

.container { max-width: 760px; margin: 0 auto; padding: 20px 16px 60px; }
.container.wide { max-width: 1080px; }
.footer { text-align: center; color: var(--muted); font-size: 13px; padding: 20px; }

h1 { font-size: 24px; margin: 8px 0 12px; }
h2 { font-size: 18px; margin: 20px 0 8px; }
a { color: var(--primary); }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.hidden { display: none !important; }

/* --- Карточки курсов --- */
.cards { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 640px) { .cards { grid-template-columns: 1fr 1fr; } }
.card {
  display: block; background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; text-decoration: none; color: var(--text);
  transition: box-shadow .15s;
}
.card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.08); }
.card h2 { margin: 0 0 6px; font-size: 17px; }

.progressbar {
  height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; margin: 10px 0 4px;
}
.progressbar > div { height: 100%; background: var(--primary); border-radius: 4px; transition: width .3s; }

/* --- Список уроков --- */
.lesson-list { list-style: none; padding: 0; margin: 16px 0; }
.lesson-list li { margin-bottom: 8px; }
.lesson-list a {
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 14px; text-decoration: none; color: var(--text);
}
.lesson-list li.done a { border-left: 4px solid var(--ok); }
.lesson-list li.started a { border-left: 4px solid #f59e0b; }
.status-icon { font-size: 15px; width: 22px; text-align: center; color: var(--muted); }
.done .status-icon { color: var(--ok); }
.lesson-title { flex: 1; font-weight: 600; }

/* --- Плеер --- */
.player-wrap {
  position: relative; padding-top: 56.25%;
  background: #000; border-radius: var(--radius); overflow: hidden; margin: 12px 0;
}
.player-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

.lesson-desc {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; margin: 14px 0;
}
.lesson-actions { margin: 16px 0; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.lesson-nav { display: flex; justify-content: space-between; gap: 10px; margin-top: 24px; flex-wrap: wrap; }
.lesson-nav a { font-size: 14px; }
.lesson-nav .right { margin-left: auto; }

/* --- Кнопки, формы --- */
.btn {
  display: inline-block; padding: 10px 18px; border-radius: 8px;
  border: 1px solid var(--border); background: #fff; color: var(--text);
  font-size: 15px; cursor: pointer; text-decoration: none; text-align: center;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-block { width: 100%; }
.btn.small { padding: 5px 10px; font-size: 13px; }
.btn.danger { color: var(--err); border-color: var(--err); background: #fff; }
.btn.danger:hover { background: var(--err); color: #fff; }

label { display: block; margin: 10px 0; font-size: 14px; font-weight: 600; }
input[type=text], input[type=password], input[type=number], input:not([type]), textarea, select {
  display: block; width: 100%; margin-top: 4px; padding: 10px 12px;
  border: 1px solid var(--border); border-radius: 8px; font-size: 15px;
  font-family: inherit; background: #fff; color: var(--text);
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--primary); outline-offset: 0; border-color: transparent; }
label.chk { display: flex; align-items: center; gap: 8px; font-weight: 400; }
label.chk input { width: auto; margin: 0; }

/* --- Логин --- */
.auth-card {
  max-width: 380px; margin: 8vh auto 0; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px;
}
.auth-card h1 { margin-top: 0; }

/* --- Сообщения --- */
.error { background: #FAECE7; color: var(--err); border: 1px solid #eccdc0; border-radius: 8px; padding: 10px 14px; margin: 10px 0; }
.success { background: #EAF3DE; color: var(--ok); border: 1px solid #cfe3b8; border-radius: 8px; padding: 10px 14px; margin: 10px 0; }
.notice { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; border-radius: 8px; padding: 10px 14px; margin: 10px 0; }
.flash { background: #eff6ff; color: #1e40af; border: 1px solid #bfdbfe; border-radius: 8px; padding: 10px 14px; margin: 10px 0; }
.big { font-size: 17px; padding: 16px 18px; }

/* --- Квиз --- */
.quiz-form fieldset {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; margin: 0 0 14px;
}
.quiz-form fieldset.wrong { border-color: var(--err); }
.quiz-form legend { font-weight: 700; padding: 0 6px; }
.quiz-opt { display: flex; align-items: flex-start; gap: 10px; font-weight: 400; padding: 8px 6px; border-radius: 8px; cursor: pointer; }
.quiz-opt:hover { background: var(--bg); }
.quiz-opt input { width: auto; margin: 4px 0 0; }

/* --- Trial --- */
.trial-banner {
  background: var(--primary); color: #fff; text-align: center;
  padding: 6px 12px; border-radius: 8px; font-size: 13px; font-weight: 700;
  letter-spacing: .4px; margin-bottom: 12px;
}
.trial-cta {
  background: var(--card); border: 2px solid var(--primary); border-radius: var(--radius);
  padding: 18px; margin: 22px 0; text-align: center;
}
.trial-cta h2 { margin-top: 0; }
.contact-links { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* --- Админ --- */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin: 16px 0; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; text-align: center; }
.stat b { display: block; font-size: 26px; color: var(--primary); }
.stat span { color: var(--muted); font-size: 13px; }

table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin: 12px 0; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--bg); font-size: 13px; color: var(--muted); }
tr:last-child td { border-bottom: 0; }
tr.inactive { opacity: .5; }
td.ok { color: var(--ok); font-weight: 700; }
td.fail { color: var(--err); font-weight: 700; }
td.actions { white-space: nowrap; }
td.actions form { display: inline-block; margin: 2px; }
@media (max-width: 720px) { table { display: block; overflow-x: auto; } }

.panel {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; margin: 12px 0;
}
.panel summary { cursor: pointer; font-size: 15px; user-select: none; }
.panel.inactive { opacity: .6; }
.inline-form { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 10px; }
.inline-form input, .inline-form select { width: auto; flex: 1; min-width: 140px; margin: 0; }

.courses-form { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.courses-form .chk { margin: 0; font-size: 13px; }
.row-actions { display: flex; gap: 8px; margin-top: 10px; }

.opt-row { display: flex; gap: 8px; align-items: center; margin: 6px 0; }
.opt-row input[type=radio] { width: auto; margin: 0; }
.opt-row input:not([type=radio]) { flex: 1; margin: 0; }

.lesson-picker .picked { list-style: decimal inside; padding: 0; }
.lesson-picker .picked li {
  background: var(--bg); border-radius: 8px; padding: 6px 10px; margin: 4px 0;
  display: flex; align-items: center; gap: 8px;
}
.lesson-picker .rm { border: 0; background: none; color: var(--err); font-size: 17px; cursor: pointer; margin-left: auto; }
.lesson-picker .mv-wrap { margin-left: auto; display: flex; gap: 2px; }
.lesson-picker .mv-wrap + .rm { margin-left: 0; }
.lesson-picker .mv { border: 0; background: none; color: var(--muted); cursor: pointer; padding: 2px 4px; line-height: 0; border-radius: 6px; }
.lesson-picker .mv:hover { color: inherit; background: var(--border); }
.trash-row { display: flex; align-items: center; gap: 10px; margin: 6px 0; }
.trash-row span { flex: 1; }

.badge { font-size: 12px; padding: 2px 8px; border-radius: 999px; background: var(--border); color: var(--muted); }
.badge.s4 { background: #EAF3DE; color: var(--ok); }
.badge.s5, .badge.s6 { background: #FAECE7; color: var(--err); }
.badge.s2, .badge.s3 { background: #fef9c3; color: #92400e; }

.upload-zone { margin: 10px 0; }
.upload-progress { display: flex; align-items: center; gap: 10px; margin-top: 8px; }
.upload-progress .progressbar { flex: 1; margin: 0; }

.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.5);
  display: flex; align-items: center; justify-content: center; z-index: 100;
}
.modal-body { background: #fff; border-radius: var(--radius); padding: 24px; text-align: center; max-width: 92vw; }
#qr-target { display: flex; justify-content: center; margin-bottom: 10px; }
#qr-url { word-break: break-all; max-width: 280px; }


/* --- V2: подтверждение просмотра --- */
.confirm-block {
  background: var(--primary-light); border: 2px solid var(--primary);
  border-radius: var(--radius); padding: 18px; text-align: center; width: 100%;
}
.confirm-q { font-size: 18px; font-weight: 700; margin: 0 0 12px; }
.confirm-btns { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* --- V2: текстовый квиз --- */
.quiz-q-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; margin: 0 0 14px;
}
.quiz-q-card.solved { border-color: var(--ok); }
.quiz-q-text { margin: 0 0 10px; font-size: 16px; }
.quiz-answer-row { display: flex; gap: 8px; }
.quiz-answer-row input { flex: 1; margin: 0; }
.quiz-answer-row .btn { white-space: nowrap; }
.quiz-verdict { margin-top: 8px; font-weight: 700; }
.quiz-verdict.ok { color: var(--ok); }
.quiz-verdict.fail { color: var(--err); }

/* --- V2: несколько видео --- */
.video-title { margin: 18px 0 6px; font-size: 16px; color: var(--muted); }
.video-row {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  background: var(--bg); border-radius: 8px; padding: 8px 12px; margin: 6px 0; font-size: 14px;
}
.video-num { color: var(--muted); }
.video-row form.inline, form.inline { display: inline-block; margin: 0; }
.video-reorder { display: inline-flex; gap: 4px; }
.btn.small.move { padding: 3px 7px; line-height: 0; }
.btn.small.move:disabled { opacity: .35; pointer-events: none; }
.drag-handle { display: inline-flex; align-items: center; color: var(--muted); cursor: grab; padding: 2px; user-select: none; }
.drag-handle:hover { color: var(--primary); }
.drag-handle:active { cursor: grabbing; }
.video-row.dragging { opacity: .55; outline: 2px dashed var(--primary); outline-offset: -2px; }
.video-row.drag-saved { outline: 2px solid var(--ok); outline-offset: -2px; }

/* --- V3: PDF-материал у видео --- */
.video-pdf { display: inline-flex; align-items: center; gap: 4px; }
.pdf-chip { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; color: var(--primary); text-decoration: none; border: 1px solid var(--border); border-radius: 6px; padding: 3px 8px; background: var(--card); }
.pdf-chip:hover { border-color: var(--primary); }
.pdf-inline { margin: 12px 0 26px; }
.pdf-inline-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; color: var(--muted); font-size: 14px; }
.pdf-inline-head a { margin-left: auto; font-size: 13px; }
.pdf-frame { width: 100%; height: 440px; border: 1px solid var(--border); border-radius: 10px; background: var(--card); transition: height .25s ease; }

/* --- V3: спойлер «Javoblar» вокруг PDF --- */
.pdf-spoiler { border: 1px solid var(--border); border-radius: 10px; background: var(--card); margin: 12px 0 26px; }
.pdf-spoiler > summary {
  display: flex; align-items: center; gap: 8px; padding: 12px 14px;
  cursor: pointer; font-weight: 600; color: var(--primary); list-style: none;
  border-radius: 10px; transition: background .15s;
}
.pdf-spoiler > summary::-webkit-details-marker { display: none; }
.pdf-spoiler > summary:hover { background: var(--primary-light); }
.pdf-spoiler > summary .chev { margin-left: auto; display: inline-flex; transition: transform .2s; }
.pdf-spoiler[open] > summary .chev { transform: rotate(180deg); }
.pdf-spoiler[open] > summary { border-radius: 10px 10px 0 0; }
.pdf-spoiler .pdf-inline { margin: 0; padding: 4px 14px 14px; }
details.sub { margin: 8px 0; }

/* --- V2: язык дешборда --- */
.lang-switch { color: var(--muted); font-size: 13px; }
.lang-switch a { padding: 0 4px; }
.lang-switch a.on { font-weight: 800; color: var(--primary); text-decoration: none; }

.modal-body.wide { width: min(860px, 94vw); }
.modal-body.wide .player-wrap { padding-top: 56.25%; margin-bottom: 12px; }


/* ================= V3: админ-редизайн (sidebar) ================= */
.admin-shell { display: flex; min-height: 100vh; }
.sidenav {
  width: 224px; flex: 0 0 224px;
  background: #15221F; color: #cfe0db;
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
}
.sidenav-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 16px 14px; text-decoration: none;
  color: #fff; font-weight: 800; font-size: 16px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidenav-brand img { height: 30px; width: auto; background: #fff; border-radius: 6px; padding: 2px; }
.sidenav-nav { display: flex; flex-direction: column; padding: 10px 8px; gap: 2px; flex: 1; }
.sidenav-nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 8px;
  color: #cfe0db; text-decoration: none; font-size: 14px; font-weight: 600;
}
.sidenav-nav a:hover { background: rgba(255,255,255,.07); color: #fff; }
.sidenav-nav a.active { background: var(--primary); color: #fff; }
.sidenav-nav .ico { width: 20px; text-align: center; }
.sidenav-bottom {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; border-top: 1px solid rgba(255,255,255,.08); font-size: 13px;
}
.sidenav-bottom a { color: #cfe0db; text-decoration: none; }
.sidenav-bottom a:hover { color: #fff; }
.sidenav .lang-switch { color: #7d938d; }
.sidenav .lang-switch a { color: #cfe0db; }
.sidenav .lang-switch a.on { color: #fff; font-weight: 800; }
.admin-main { flex: 1; min-width: 0; }

/* Мобильная версия: sidebar -> верхняя полоса с горизонтальным скроллом */
@media (max-width: 860px) {
  .admin-shell { flex-direction: column; }
  .sidenav {
    width: 100%; flex: none; height: auto; position: sticky; top: 0; z-index: 20;
    flex-direction: row; align-items: center; overflow-x: auto;
  }
  .sidenav-brand { border-bottom: 0; padding: 10px 12px; flex: none; }
  .sidenav-brand span { display: none; }
  .sidenav-nav { flex-direction: row; padding: 6px; flex: 1; }
  .sidenav-nav a { padding: 8px 10px; white-space: nowrap; }
  .sidenav-nav a span:last-child { display: none; }   /* только иконки */
  .sidenav-nav a.active span:last-child { display: inline; } /* активный — с текстом */
  .sidenav-bottom { border-top: 0; padding: 8px 10px; flex: none; }
}

/* Таблицы: скролл-обёртка + карточный вид */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-wrap table { min-width: 640px; }

.progressbar.mini { height: 6px; margin: 4px 0 0; max-width: 120px; }
.cell-progress span { font-weight: 700; font-size: 13px; }

.tag { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.tag.ok { background: #EAF3DE; color: var(--ok); }
.tag.warn { background: #FAEEDA; color: #854F0B; }

/* Bulk-вопросы */
.q-row { background: var(--bg); border-radius: 10px; padding: 10px 12px; margin: 8px 0; }
.q-row-bottom { display: flex; gap: 8px; align-items: flex-end; }
.q-row-bottom .grow { flex: 1; }

/* Стат-карты приятнее */
.stat { border-left: 4px solid var(--primary); text-align: left; padding: 14px 16px; }
.stat b { font-size: 24px; }


/* SVG-иконки */
.icon { vertical-align: -3px; }
.sidenav-nav .ico { display: inline-flex; align-items: center; }
.sidenav-nav .ico .icon { vertical-align: 0; }
.sidenav-bottom a { display: inline-flex; align-items: center; }
.btn .icon { margin-right: 2px; }


/* Экспорт QR по группам */
.qr-export { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0 4px; }
.qr-export .badge { margin-left: 4px; }


/* Sinov: кнопка записи + витрина курсов */
.btn-lg { font-size: 17px; padding: 14px 28px; font-weight: 700; }
.trial-cta { text-align: center; margin: 18px 0; border: 0; background: none; padding: 0; }
.course-pick { margin: 26px 0; }
.course-pick h2 { text-align: center; }
.course-pick-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 12px; }
@media (min-width: 640px) { .course-pick-grid { grid-template-columns: repeat(3, 1fr); } }
.course-chip {
  display: flex; flex-direction: column; gap: 8px; align-items: flex-start;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; text-decoration: none; color: var(--text);
}
.course-chip-title { font-weight: 700; font-size: 15px; }
.course-chip.available { border: 2px solid var(--primary); }
.course-chip.available:hover { box-shadow: 0 4px 14px rgba(15,110,86,.18); }
.course-chip.soon { opacity: .75; }

/* --- Закрытые уроки (расписание SchoolUp) --- */
.lesson-list li.locked .locked-row {
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--border); border-left: 4px solid var(--border);
  border-radius: var(--radius); padding: 12px 14px; color: var(--muted);
  cursor: default; opacity: .75;
}
.lesson-list li.locked .lesson-title { font-weight: 600; color: var(--muted); }
.lesson-list li.locked .status-icon { display: inline-flex; align-items: center; justify-content: center; }
.locked-notice { display: flex; align-items: center; gap: 8px; }
.locked-notice svg { flex: none; }

/* --- Шапка страницы админки и подвкладки --- */
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.page-head.sticky {
  position: sticky; top: 0; z-index: 15;
  background: var(--bg); padding: 10px 0 12px; border-bottom: 1px solid var(--border);
}
.page-head h1 { margin: 0; display: flex; align-items: center; gap: 8px; font-size: 20px; }
.page-head .inline-form { margin-top: 0; }
.subtabs { display: flex; gap: 6px; flex-wrap: wrap; margin: 14px 0 6px; }
.subtabs a {
  padding: 7px 14px; border-radius: 999px; font-size: 14px; text-decoration: none;
  color: var(--muted); background: var(--card); border: 1px solid var(--border);
}
.subtabs a:hover { color: var(--primary); border-color: var(--primary); }
.subtabs a.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.stat b.stat-time { font-size: 19px; }