/* ============================================================
   reading-hub.css — Everyday Reading + new Home layout
   ใช้คู่กับ theme.css + app.css (โหลดทีหลังสองไฟล์นั้นเสมอ)
   เด็กทุนมงสอนภาษาญี่ปุ่น — บอสเซนเซ
   ============================================================ */

/* หน้ากลุ่มนี้ (Home + Everyday Reading) เท่านั้นที่ใช้ฟอนต์ไทย custom
   "Lamun Reference Study V07" (self-hosted, App/assets/fonts/lamun-reference/) —
   ทับ token กลางของ theme.css เฉพาะที่นี่ ไม่กระทบหน้าข้อสอบเก่า/หน้าอื่น */
@font-face {
  font-family: "Lamun Reference Study V07";
  src: url("../fonts/lamun-reference/LamunReferenceV07-Regular.woff") format("woff");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Lamun Reference Study V07";
  src: url("../fonts/lamun-reference/LamunReferenceV07-Bold.woff") format("woff");
  font-weight: 700; font-style: normal; font-display: swap;
}
:root {
  --font-heading-th: "Lamun Reference Study V07", "IBM Plex Sans Thai", "Noto Sans Thai", system-ui, sans-serif;
  --font-body-th: "Lamun Reference Study V07", "IBM Plex Sans Thai", "Noto Sans Thai", system-ui, sans-serif;
}
h1, h2, h3, h4, .ink-feature, .artrow__title, .hub__greet-title, .rowcard__title, .catcard .lbl { font-weight: 700; }

/* ===================== SHELL: sidebar + main [+ rail] ===================== */
.hub {
  max-width: 1520px; margin: 0 auto;
  display: grid; grid-template-columns: 272px 1fr; min-height: calc(100vh - 60px);
}
.hub--rail { grid-template-columns: 272px 1fr 300px; }
.hub__main { padding: 28px 32px 56px; min-width: 0; }
.hub__rail { border-left: 1px solid var(--color-rule); padding: 28px 22px 40px; }

/* ===================== SIDEBAR ===================== */
.hubnav {
  border-right: 1px solid var(--color-rule); padding: 22px 14px 24px; display: flex; flex-direction: column;
  align-self: start;
}
.hubnav__brand {
  display: flex; align-items: center; gap: 10px; text-decoration: none;
  padding: 6px 8px 20px; border-bottom: 1px solid var(--color-rule); margin-bottom: 10px;
}
.hubnav__brand img { width: 36px; height: 36px; border-radius: 50%; border: 1.5px solid var(--color-border); background: var(--color-soft-bg); }
.hubnav__brand b { font-family: var(--font-heading-th); font-weight: 700; font-size: 14px; color: var(--color-accent); line-height: 1.2; display: block; }
.hubnav__brand span { font-family: var(--font-heading-en); font-size: 8.5px; letter-spacing: .16em; color: var(--color-mute); text-transform: uppercase; font-weight: 500; }
.hubnav__head {
  font-family: var(--font-heading-en); font-size: 10px; font-weight: 700; letter-spacing: .16em;
  text-transform: uppercase; color: var(--color-mute); padding: 16px 14px 6px;
}
.hubnav__link {
  display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-radius: 12px;
  font-family: var(--font-heading-th); font-size: 13.5px; font-weight: 600; color: var(--color-ink-soft);
  border: 1.5px solid transparent; text-decoration: none; transition: all var(--dur-fast);
}
.hubnav__link:hover { background: var(--color-soft-bg); color: var(--color-accent); }
.hubnav__link.is-active { background: var(--color-soft-bg); border-color: var(--color-accent); color: var(--color-accent); }
.hubnav__link .ic { font-size: 16px; width: 22px; text-align: center; flex: none; }
.hubnav__link .new {
  margin-left: auto; font-family: var(--font-heading-en); font-size: 9px; font-weight: 800;
  letter-spacing: .06em; background: var(--color-gold); color: #fff; border-radius: 999px; padding: 2px 7px;
}
.hubnav__lvls { display: flex; gap: 6px; padding: 4px 10px 10px; flex-wrap: wrap; }
.hubnav__foot { margin-top: 18px; padding: 16px 10px 4px; font-size: 10.5px; color: var(--color-mute); line-height: 1.6; border-top: 1px solid var(--color-rule); }

/* small level pill (sidebar quick-jump / rail) */
.lvlpill {
  display: inline-flex; align-items: center; justify-content: center; min-width: 34px; height: 30px;
  padding: 0 4px; border-radius: 999px; font-family: var(--font-heading-en); font-weight: 700;
  font-size: 12px; border: 1.5px solid var(--color-border); color: var(--color-mute);
  background: var(--color-bg); text-decoration: none;
}
.lvlpill.active { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-bg); }
.lvlpill.is-disabled { opacity: .5; pointer-events: none; }

/* ===================== TOP ROW (home greeting) ===================== */
.hub__topbar { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; }
.hub__greet-eyebrow { font-family: var(--font-heading-en); font-size: 11px; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--color-mute); }
.hub__greet-title { font-family: var(--font-heading-th); font-weight: 700; font-size: 19px; color: var(--color-ink); margin-top: 2px; }
.hub__search {
  margin-left: auto; display: flex; align-items: center; gap: 8px; background: var(--color-bg);
  border: 1.5px solid var(--color-border); border-radius: 999px; padding: 8px 16px; width: 260px;
}
.hub__search span { font-family: var(--font-heading-th); font-size: 12.5px; color: var(--color-mute); }

/* ===================== VIDEO RAIL (Watch & Learn) ===================== */
.vidrail-head { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.vidrail-head b { font-family: var(--font-heading-th); font-weight: 700; font-size: 16px; color: var(--color-ink); }
.vidrail { display: flex; gap: 16px; overflow-x: auto; scrollbar-width: none; padding-bottom: 4px; }
.vidrail::-webkit-scrollbar { display: none; }
.vidcard {
  flex: none; width: 300px; height: 169px; border-radius: 14px; overflow: hidden; position: relative;
  display: flex; align-items: center; justify-content: center; text-decoration: none;
  background-size: cover; background-position: center; box-shadow: var(--shadow-card);
  transition: transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med);
}
.vidcard:hover { transform: translateY(-3px); box-shadow: var(--shadow-float); }
.vidcard::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 45%, rgba(0,0,0,.72) 100%);
}
.vidcard .play {
  width: 50px; height: 50px; border-radius: 50%; background: rgba(255,254,239,.94); display: flex;
  align-items: center; justify-content: center; box-shadow: 0 4px 14px rgba(0,0,0,.35); position: relative; z-index: 1;
  transition: transform var(--dur-fast) var(--ease-snap);
}
.vidcard:hover .play { transform: scale(1.08); }
.vidcard .dur {
  position: absolute; bottom: 10px; right: 12px; font-family: var(--font-heading-en); font-size: 11px;
  font-weight: 700; color: var(--color-bg); background: rgba(0,0,0,.55); padding: 3px 8px; border-radius: 6px; z-index: 1;
}
.vidcard .ttl {
  position: absolute; left: 12px; right: 12px; bottom: 34px; font-family: var(--font-heading-th);
  font-size: 12.5px; font-weight: 700; color: var(--color-bg); text-shadow: 0 1px 4px rgba(0,0,0,.6);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; z-index: 1;
}
/* ===================== CATEGORY / LEVEL PILLS ===================== */
.catpill {
  display: inline-flex; align-items: center; gap: 5px; padding: 4px 12px; border-radius: 999px;
  font-family: var(--font-heading-th); font-size: 11px; font-weight: 700;
}
.lvlbadge {
  border: 1px solid var(--color-border); background: var(--color-bg-alt); color: var(--color-ink);
  font-weight: 800; font-size: 10.5px; letter-spacing: .03em; padding: 3px 10px; border-radius: 999px;
  font-family: var(--font-heading-en);
}

/* ===================== ARTICLE ROW LIST ===================== */
.artrow {
  display: flex; gap: 16px; align-items: center; padding: 16px 6px; border-bottom: 1px solid var(--color-rule);
  border-radius: 10px; text-decoration: none; transition: background var(--dur-fast);
}
.artrow:hover { background: var(--color-soft-bg); }
.artrow:last-child { border-bottom: none; }
.artrow__thumb { flex: none; width: 100px; height: 84px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 34px; background-size: cover; background-position: center; }
.artrow__body { flex: 1; min-width: 0; }
.artrow__title { margin: 0 0 4px; font-family: var(--font-heading-th); font-size: 15.5px; font-weight: 700; color: var(--color-ink); line-height: 1.4; }
.artrow__meta { font-size: 11px; color: var(--color-mute); display: flex; align-items: center; gap: 6px; }

/* compact row (right-rail "แนะนำวันนี้" / "บทความที่เกี่ยวข้อง") */
.rowcard { display: flex; gap: 12px; align-items: flex-start; padding: 10px; border-radius: 12px; text-decoration: none; transition: background var(--dur-fast); }
.rowcard:hover { background: var(--color-soft-bg); }
.rowcard__thumb { flex: none; width: 44px; height: 44px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 20px; }
.rowcard__title { font-family: var(--font-heading-th); font-size: 12px; font-weight: 700; color: var(--color-ink); line-height: 1.4; }
.rowcard__meta { font-size: 10.5px; color: var(--color-mute); margin-top: 2px; }

/* ===================== LEVEL SWITCHER TABS (landing) ===================== */
.lvltabs { display: flex; gap: 12px; margin-bottom: 34px; flex-wrap: wrap; }
.lvltab {
  display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 10px 22px;
  border-radius: 14px; border: 1.5px solid var(--color-border); background: var(--color-bg);
  min-width: 74px; text-decoration: none;
}
.lvltab .n { font-family: var(--font-heading-en); font-weight: 700; font-size: 19px; color: var(--color-ink); }
.lvltab .s { font-size: 9.5px; color: var(--color-mute); }
.lvltab.active { background: var(--color-accent); border-color: var(--color-accent); }
.lvltab.active .n, .lvltab.active .s { color: var(--color-bg); }
.lvltab.is-disabled { opacity: .5; pointer-events: none; }

/* ===================== CATEGORY CARDS (landing filter) ===================== */
.catgrid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; margin-bottom: 36px; }
.catcard {
  border-radius: 16px; padding: 18px; display: flex; flex-direction: column; gap: 10px;
  border: 1.5px solid transparent; cursor: pointer; transition: all var(--dur-fast); text-align: left;
  font-family: inherit;
}
.catcard:hover { transform: translateY(-2px); }
.catcard.is-active { box-shadow: 0 0 0 2px var(--color-ink) inset; }
.catcard .ic { font-size: 26px; }
.catcard .lbl { font-family: var(--font-heading-th); font-weight: 700; font-size: 14.5px; color: var(--color-ink); }
.catcard .cnt { font-size: 11px; font-weight: 600; }

.chiprow { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 15px; border-radius: 999px;
  font-family: var(--font-heading-th); font-size: 12.5px; font-weight: 600; border: 1.5px solid var(--color-border);
  color: var(--color-ink-soft); background: var(--color-bg); cursor: pointer;
}
.chip.active { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-bg); }

/* ===================== ARTICLE READ PAGE ===================== */
.er-meta-row { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.er-meta { font-size: 11.5px; color: var(--color-mute); margin-left: auto; display: flex; align-items: center; gap: 6px; }
.er-title-jp { font-family: var(--font-heading-jp); font-size: 15px; color: var(--color-accent); margin: 0 0 22px; }

.er-check {
  margin-top: var(--space-5); border: 1px solid var(--color-border); border-radius: var(--radius-card);
  padding: var(--space-4); box-shadow: var(--shadow-card);
}
.er-check__q { font-size: 15px; color: var(--color-ink); line-height: 1.8; display: flex; align-items: flex-start; flex-wrap: wrap; gap: 8px; }
.er-check__reveal summary { list-style: none; cursor: pointer; margin-top: var(--space-3); }
.er-check__reveal summary::-webkit-details-marker { display: none; }
.er-check__reveal[open] summary { margin-bottom: var(--space-3); }
.er-check__a { font-size: 15px; color: var(--color-ink); line-height: 1.8; }
.er-check__note { font-size: 12.5px; color: var(--color-ink-soft); background: var(--color-bg-alt); border-left: 3px solid var(--color-gold); border-radius: 0 8px 8px 0; padding: 8px 14px; margin-top: 8px; }

.er-summary {
  margin-top: var(--space-4); background: var(--color-soft-bg); border-radius: var(--radius-chip);
  padding: var(--space-3) var(--space-4);
}
.er-summary__label { font-family: var(--font-heading-en); font-size: 10.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 4px; }
.er-summary p { margin: 0; font-size: 15px; color: var(--color-ink); }

.er-vocab { margin-top: var(--space-5); border: 1px solid var(--color-border); border-radius: var(--radius-card); padding: var(--space-4); box-shadow: var(--shadow-card); }
.er-vocab__head { display: flex; align-items: center; margin-bottom: 12px; font-family: var(--font-heading-th); font-weight: 700; font-size: 14.5px; color: var(--color-ink); }
.er-vocab__grammar { margin-top: 12px; font-size: 12px; color: var(--color-mute); }

/* ===================== ARTICLE HERO IMAGE (16:9 placeholder) ===================== */
.er-hero {
  aspect-ratio: 16 / 9; width: 100%; border-radius: var(--radius-chip); overflow: hidden;
  margin: 4px 0 22px; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; background-size: cover; background-position: center;
}
.er-hero__ic { font-size: clamp(36px, 7vw, 60px); line-height: 1; }
.er-hero__img { width: 100%; height: 100%; object-fit: cover; display: block; }
.er-hero__hint {
  font-family: var(--font-heading-en); font-size: 10.5px; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; color: rgba(0,0,0,.34);
}

/* ===================== RELATED ARTICLES (below the read page, full width) ===================== */
.er-related { margin-top: 8px; }
.er-related__head { font-family: var(--font-heading-th); font-weight: 700; font-size: 16px; color: var(--color-ink); margin-bottom: 16px; }
.er-related__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.relcard {
  display: block; text-decoration: none; border-radius: var(--radius-card); overflow: hidden;
  border: 1px solid var(--color-border); background: var(--color-bg); box-shadow: var(--shadow-card);
  transition: transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med);
}
.relcard:hover { transform: translateY(-3px); box-shadow: var(--shadow-float); }
.relcard__img {
  aspect-ratio: 16 / 9; width: 100%; display: flex; align-items: center; justify-content: center;
  font-size: 32px; background-size: cover; background-position: center;
}
.relcard__body { padding: 14px 16px 18px; }
.relcard__title { font-family: var(--font-heading-th); font-weight: 700; font-size: 14.5px; color: var(--color-ink); line-height: 1.4; margin: 8px 0 6px; }
.relcard__meta { font-size: 11px; color: var(--color-mute); }

/* ===================== PROMO BOX (gold gradient, reused) ===================== */
.promo-box { border-radius: var(--radius-card); padding: 18px; background: linear-gradient(135deg, var(--color-gold), #8B6A00); box-shadow: var(--shadow-float); }
.promo-box__tag { font-family: var(--font-heading-en); font-size: 12px; font-weight: 700; color: var(--color-gold-soft); letter-spacing: .06em; }
.promo-box__body { font-family: var(--font-heading-th); font-size: 13px; color: var(--color-bg); margin-top: 6px; line-height: 1.5; }
.promo-box__cta { display: inline-block; margin-top: 12px; font-family: var(--font-heading-th); font-size: 11.5px; font-weight: 700; color: #8B6A00; background: var(--color-bg); padding: 7px 14px; border-radius: 999px; text-decoration: none; }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1080px) {
  .hub, .hub--rail { grid-template-columns: 1fr; }
  .hubnav { display: none; }
  .hub__rail { border-left: none; border-top: 1px solid var(--color-rule); }
  .catgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .er-meta-row { flex-direction: column; align-items: flex-start; }
  .er-meta { margin-left: 0; }
}

/* ---- Home: "คอร์สและเครื่องมือ" rail (links every course/tool page) ---- */
.course-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); gap: 10px; margin-top: 14px; }
.course-card { display: flex; flex-direction: column; gap: 4px; padding: 14px 14px 12px; text-decoration: none;
  background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-card);
  color: var(--color-ink); box-shadow: var(--shadow-card); transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out); }
.course-card:hover { transform: translateY(-2px); border-color: var(--color-accent); }
.course-card:focus-visible { outline: 3px solid rgba(0, 109, 64, .25); outline-offset: 2px; }
.course-card .ic { font-size: 22px; line-height: 1; margin-bottom: 4px; }
.course-card b { font-family: var(--font-heading-th); font-size: 13.5px; line-height: 1.35; }
.course-card small { font-size: 12px; color: var(--color-mute); line-height: 1.4; }