/* ===========================================================================
   ELA Jay — Meckman Design System v4.0
   Black/charcoal environment, tan warmth, rare red curiosity spark.
   =========================================================================== */

:root {
  --black:    #000000;
  --charcoal: #2A2A2A;
  --charcoal-2: #1c1c1c;
  --tan:      #FFF2CC;
  --tan-dim:  rgba(255, 242, 204, 0.20);
  --tan-line: rgba(255, 242, 204, 0.16);
  --red:      #CC0000;
  --white:    #FFFFFF;
  --gray:     #CCCCCC;
  --gray-dim: #8a8a8a;

  --green:    #5BD18B;  /* success / mastered — used sparingly */

  --r-card:   8px;
  --r-panel: 10px;
  --r-modal: 12px;
  --r-btn:    6px;

  --gap:      24px;
  --gap-lg:   80px;
  --maxw:     760px;

  --serif: "Fraunces", Georgia, serif;
  --sans:  "Inter", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom);
}

/* Environmental accent: faint schematic grid */
.schematic {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--tan-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--tan-line) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.07;
  mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 75%);
}

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px clamp(16px, 4vw, 32px);
  background: rgba(0,0,0,0.82);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--tan-line);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--white); }
.brand-mark { color: var(--tan); font-size: 20px; line-height: 1; }
.brand-name { font-family: var(--serif); font-weight: 600; letter-spacing: 0.5px; font-size: 19px; }
.topnav { display: flex; gap: 6px; }
.topnav a {
  color: var(--gray); text-decoration: none; font-size: 14px; font-weight: 500;
  padding: 7px 14px; border-radius: var(--r-btn); transition: color .15s, background .15s;
}
.topnav a:hover { color: var(--tan); }
.topnav a.active { color: var(--black); background: var(--tan); }

/* ---------- Layout ---------- */
.app {
  position: relative; z-index: 1;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(24px, 5vw, 48px) clamp(16px, 4vw, 24px) 120px;
}
.footer {
  position: relative; z-index: 1;
  max-width: var(--maxw); margin: 0 auto; padding: 0 24px 40px;
  text-align: center; color: var(--gray-dim); font-size: 12.5px;
}
.footer .dot { color: var(--red); display: block; margin-bottom: 10px; font-size: 16px; }
.footer strong { color: var(--gray); }

/* ---------- Typography ---------- */
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.2; margin: 0 0 .4em; }
h1 { font-size: clamp(26px, 6vw, 38px); }
h2 { font-size: clamp(20px, 4.5vw, 26px); }
h3 { font-size: 18px; }
p { margin: 0 0 1em; color: var(--gray); }
.lead { color: var(--white); font-size: 17px; }
.eyebrow {
  font-family: var(--sans); font-size: 12px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; color: var(--tan); margin: 0 0 8px;
}
.heading-accent { width: 46px; height: 3px; background: var(--red); border-radius: 2px; margin: 6px 0 22px; }
.center { text-align: center; }
.muted { color: var(--gray-dim); }

/* Section divider with centered spark */
.divider { display: flex; align-items: center; gap: 14px; margin: var(--gap-lg) 0 var(--gap); }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--tan-line); }
.divider .spark { color: var(--red); font-size: 14px; }

/* ---------- Cards / Panels ---------- */
.card {
  background: var(--charcoal); border: 1px solid var(--tan-line);
  border-radius: var(--r-card); padding: 22px;
}
.panel {
  background: var(--charcoal); border: 1px solid var(--tan-line);
  border-radius: var(--r-panel); padding: clamp(20px, 4vw, 30px); margin-bottom: var(--gap);
}
.panel.spark-border { border-color: var(--tan-dim); box-shadow: 0 0 0 1px rgba(255,242,204,.05), 0 0 40px rgba(255,242,204,.04); }

.stack > * + * { margin-top: var(--gap); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px; justify-content: center;
  font-family: var(--sans); font-size: 15px; font-weight: 600;
  padding: 12px 22px; border-radius: var(--r-btn);
  border: 1px solid var(--tan); background: transparent; color: var(--tan);
  cursor: pointer; text-decoration: none; transition: all .15s ease;
}
.btn:hover { background: var(--tan); color: var(--black); }
.btn.primary { background: var(--tan); color: var(--black); }
.btn.primary:hover { background: #fff; }
.btn.ghost { border-color: var(--tan-line); color: var(--gray); }
.btn.ghost:hover { border-color: var(--tan); color: var(--tan); background: transparent; }
.btn.full { width: 100%; }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }

.icon-btn {
  display: inline-flex; align-items: center; gap: 7px;
  background: transparent; border: 1px solid var(--tan-line); color: var(--gray);
  border-radius: var(--r-btn); padding: 7px 12px; font-size: 13px; cursor: pointer;
  transition: all .15s;
}
.icon-btn:hover { border-color: var(--tan); color: var(--tan); }

/* ---------- Continue / hero card ---------- */
.continue {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #242424, #161616);
  border: 1px solid var(--tan-dim); border-radius: var(--r-panel);
  padding: clamp(22px, 4vw, 32px); margin-bottom: var(--gap);
}
.continue .focal {
  position: absolute; right: -50px; top: -50px; width: 200px; height: 200px;
  border: 2px solid var(--tan-line); border-radius: 50%; opacity: .5; pointer-events: none;
}
.continue .meta { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; color: var(--gray-dim); font-size: 13px; margin-bottom: 6px; }
.continue h2 { margin-bottom: 4px; }
.continue .where { color: var(--tan); font-size: 14px; margin: 2px 0 18px; }

/* ---------- Stats row ---------- */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: var(--gap); }
.stat { background: var(--charcoal); border: 1px solid var(--tan-line); border-radius: var(--r-card); padding: 14px; text-align: center; }
.stat .num { font-family: var(--serif); font-size: 26px; color: var(--tan); line-height: 1; }
.stat .lbl { font-size: 11px; letter-spacing: 1px; text-transform: uppercase; color: var(--gray-dim); margin-top: 6px; }

/* ---------- Progress bars ---------- */
.bar { height: 8px; background: #111; border-radius: 99px; overflow: hidden; border: 1px solid var(--tan-line); }
.bar > span { display: block; height: 100%; background: var(--tan); border-radius: 99px; transition: width .4s ease; }
.bar.green > span { background: var(--green); }

.strand-prog { margin-top: 10px; }
.strand-prog .row { display: flex; justify-content: space-between; align-items: center; font-size: 13px; margin-bottom: 6px; color: var(--gray); }

/* ---------- Mission map / list ---------- */
.mission-list { list-style: none; padding: 0; margin: 0; }
.mission-row {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px; border: 1px solid var(--tan-line); border-radius: var(--r-card);
  background: var(--charcoal); margin-bottom: 10px; text-decoration: none; color: var(--white);
  transition: border-color .15s, transform .08s;
}
.mission-row:hover { border-color: var(--tan); }
.mission-row:active { transform: scale(.995); }
.mission-row.is-current { border-color: var(--tan); box-shadow: inset 3px 0 0 var(--red); }
.mission-row.soon { opacity: .55; cursor: default; }
.mission-row.soon:hover { border-color: var(--tan-line); }
.m-state { width: 26px; text-align: center; font-size: 16px; flex-shrink: 0; }
.m-state.done { color: var(--green); }
.m-state.curr { color: var(--tan); }
.m-state.todo { color: var(--gray-dim); }
.m-body { flex: 1; min-width: 0; }
.m-title { display: block; font-weight: 600; font-size: 15px; margin-bottom: 2px; }
.m-sub { display: block; font-size: 12.5px; color: var(--gray-dim); line-height: 1.4; }
.m-tag { font-size: 11px; padding: 3px 9px; border-radius: 99px; border: 1px solid var(--tan-line); color: var(--gray-dim); white-space: nowrap; }
.m-tag.live { color: var(--tan); border-color: var(--tan-dim); }
.m-tag.you { color: var(--black); background: var(--tan); border-color: var(--tan); }

.strand-head { display: flex; align-items: baseline; gap: 10px; margin: 30px 0 14px; }
.strand-head .code { font-family: var(--serif); color: var(--tan); font-size: 15px; }
.strand-head .name { color: var(--gray); font-size: 13px; }

.grade-tabs { display: inline-flex; gap: 6px; background: var(--charcoal-2); padding: 5px; border-radius: 99px; border: 1px solid var(--tan-line); margin-bottom: 6px; }
.grade-tabs button { background: transparent; border: 0; color: var(--gray); font-weight: 600; font-size: 13px; padding: 7px 16px; border-radius: 99px; cursor: pointer; }
.grade-tabs button.active { background: var(--tan); color: var(--black); }

/* ---------- Mission player ---------- */
.steps { display: flex; gap: 8px; margin-bottom: 24px; }
.step-chip {
  flex: 1; text-align: center; font-size: 12px; font-weight: 600; letter-spacing: .5px;
  padding: 9px 6px; border-radius: var(--r-btn); border: 1px solid var(--tan-line);
  color: var(--gray-dim); background: var(--charcoal-2);
}
.step-chip.active { color: var(--black); background: var(--tan); border-color: var(--tan); }
.step-chip.done { color: var(--green); border-color: var(--tan-line); }

/* Concept card bits */
.example { border-left: 3px solid var(--tan); padding: 4px 0 4px 14px; margin: 10px 0; color: var(--white); }
.nonexample { border-left: 3px solid var(--red); padding: 4px 0 4px 14px; margin: 10px 0; color: var(--gray); }
.callout { border: 1px solid var(--tan-line); border-radius: var(--r-card); padding: 16px 18px; margin: 16px 0; background: var(--charcoal-2); }
.callout .ctitle { font-family: var(--sans); font-weight: 700; font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--tan); margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }
.callout.heritage .ctitle { color: var(--tan); }
.callout p:last-child { margin-bottom: 0; }
.keyterms { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.term { font-size: 12px; border: 1px solid var(--tan-line); border-radius: 99px; padding: 4px 12px; color: var(--gray); }
.term b { color: var(--tan); font-weight: 600; }

/* Read-aloud passage */
.passage { font-size: 18px; line-height: 1.9; color: var(--white); font-family: var(--serif); }
.passage .sent { cursor: pointer; border-radius: 4px; padding: 1px 2px; transition: background .12s; }
.passage.selectable .sent:hover { background: rgba(255,242,204,.10); }
.passage .sent.picked { background: var(--tan); color: var(--black); }
.passage .sent.correct { background: rgba(91,209,139,.28); color: #fff; box-shadow: inset 0 0 0 1px var(--green); }
.passage .sent.wrong { background: rgba(204,0,0,.22); color: #fff; box-shadow: inset 0 0 0 1px var(--red); }

/* Lane labels */
.lane { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; padding: 4px 12px; border-radius: 99px; margin-bottom: 12px; }
.lane.says { color: var(--tan); border: 1px solid var(--tan-dim); }
.lane.imagine { color: var(--red); border: 1px solid rgba(204,0,0,.4); }

/* Choices */
.choices { display: grid; gap: 10px; margin: 16px 0; }
.choice {
  text-align: left; background: var(--charcoal-2); border: 1px solid var(--tan-line);
  color: var(--white); border-radius: var(--r-btn); padding: 13px 16px; font-size: 15px; cursor: pointer;
  transition: border-color .12s, background .12s;
}
.choice:hover { border-color: var(--tan); }
.choice.picked { border-color: var(--tan); background: #333; }
.choice.correct { border-color: var(--green); background: rgba(91,209,139,.14); }
.choice.wrong { border-color: var(--red); background: rgba(204,0,0,.12); }
.choice[disabled] { cursor: default; }

.prompt-q { font-size: 17px; color: var(--white); font-weight: 500; margin: 6px 0 4px; }
.hint { font-size: 13.5px; color: var(--gray-dim); margin-top: 8px; }
.feedback { border-radius: var(--r-card); padding: 14px 16px; margin-top: 14px; font-size: 14.5px; }
.feedback.ok { border: 1px solid var(--green); background: rgba(91,209,139,.10); color: #eafff2; }
.feedback.no { border: 1px solid var(--red); background: rgba(204,0,0,.10); color: #ffe3e3; }
.feedback b { color: var(--tan); }

.progress-dots { display: flex; gap: 6px; justify-content: center; margin: 4px 0 18px; }
.progress-dots i { width: 8px; height: 8px; border-radius: 50%; background: #333; border: 1px solid var(--tan-line); }
.progress-dots i.on { background: var(--tan); border-color: var(--tan); }
.progress-dots i.cur { box-shadow: 0 0 0 3px rgba(255,242,204,.18); }

/* Roles */
.roles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 12px; margin: 16px 0; }
.role { background: var(--charcoal-2); border: 1px solid var(--tan-line); border-radius: var(--r-card); padding: 14px; }
.role .icon { font-size: 22px; }
.role .who { font-family: var(--serif); color: var(--tan); font-size: 16px; margin: 6px 0 2px; }
.role .desc { font-size: 12.5px; color: var(--gray-dim); }

textarea.input, input.input {
  width: 100%; background: var(--charcoal-2); border: 1px solid var(--tan-line);
  color: var(--white); border-radius: var(--r-btn); padding: 12px 14px; font-family: var(--sans);
  font-size: 15px; resize: vertical; transition: border-color .15s, box-shadow .15s;
}
textarea.input:focus, input.input:focus { outline: none; border-color: var(--tan); box-shadow: 0 0 0 3px rgba(255,242,204,.12); }
label.field { display: block; margin: 16px 0 8px; font-weight: 600; font-size: 14px; color: var(--white); }
label.field .sub { display: block; font-weight: 400; color: var(--gray-dim); font-size: 12.5px; margin-top: 2px; }

/* Celebration */
.celebrate { text-align: center; padding: 20px 0; }
.celebrate .big { font-size: 54px; }
.stars-won { font-family: var(--serif); color: var(--tan); font-size: 22px; margin-top: 8px; }

/* ---------- Modal ---------- */
.modal-backdrop { position: fixed; inset: 0; z-index: 50; background: rgba(0,0,0,0.88); display: flex; align-items: center; justify-content: center; padding: 20px; }
.modal {
  background: var(--charcoal); border: 1px solid var(--tan-dim); border-radius: var(--r-modal);
  padding: 28px; max-width: 460px; width: 100%; box-shadow: 0 0 60px rgba(255,242,204,.06);
}
.modal h2 { margin-top: 0; }

/* ---------- Misc ---------- */
.back-link { display: inline-flex; align-items: center; gap: 6px; color: var(--gray); text-decoration: none; font-size: 13px; margin-bottom: 18px; }
.back-link:hover { color: var(--tan); }
.spinner { color: var(--gray-dim); text-align: center; padding: 60px 0; }

@media (max-width: 520px) {
  .topnav a { padding: 7px 10px; }
  .stats { gap: 8px; }
  .stat .num { font-size: 22px; }
}