/* Lakehouse Music Academy brand: stark black & white, heavy condensed
   uppercase display type (Anton ≈ the site's "Americane"), Roboto Condensed body. */
:root {
  --bg: #0a0a0a;
  --panel: #151515;
  --panel-2: #1f1f1f;
  --line: #333333;
  --text: #ffffff;
  --muted: #a3a3a3;
  --accent: #ffffff;
  --accent-2: #d6d6d6;
  --accent-contrast: #000000;
  --green: #4ade80;
  --amber: #facc15;
  --red: #f87171;
  --blue: #60a5fa;
  --radius: 8px;
  --shadow: 0 8px 30px rgba(0,0,0,.5);
  --display: 'Anton', 'Arial Narrow', sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Roboto Condensed', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
h1, h2, h3, .brand-name, .stat .num, .big-pct {
  font-family: var(--display);
  text-transform: uppercase;
  letter-spacing: .03em;
  font-weight: 400;
}

/* Top bar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px; border-bottom: 1px solid var(--line);
  background: rgba(20,17,32,.85); backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 50;
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo img { height: 44px; display: block; filter: invert(1); }
.brand-name { font-size: 17px; letter-spacing: .06em; }
.brand-sub { font-size: 12px; color: var(--muted); }
nav { display: flex; gap: 4px; flex-wrap: wrap; }
nav a {
  color: var(--muted); text-decoration: none; font-size: 13px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .05em;
  padding: 8px 13px; border-radius: 6px; transition: .15s;
}
nav a:hover { color: var(--text); background: var(--panel-2); }
nav a.active { color: var(--accent-contrast); background: var(--accent); }

main { padding: 28px; max-width: 1200px; margin: 0 auto; }
.loading { color: var(--muted); padding: 60px; text-align: center; }

/* Headings */
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; gap: 16px; flex-wrap: wrap; }
.page-head h1 { font-size: 24px; margin: 0; }
.page-head p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

/* Cards & grid */
.grid { display: grid; gap: 16px; }
.cards { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow);
}
.stat .num { font-size: 32px; font-weight: 800; }
.stat .label { color: var(--muted); font-size: 13px; margin-top: 2px; }
.stat.ready .num { color: var(--green); }

.section-title { font-size: 14px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 28px 0 12px; }

/* Buttons */
button, .btn {
  font: inherit; font-weight: 600; border: 1px solid var(--line); background: var(--panel-2);
  color: var(--text); padding: 8px 14px; border-radius: 10px; cursor: pointer; transition: .15s;
}
button:hover, .btn:hover { border-color: var(--accent); }
.btn-primary {
  background: var(--accent); border: none; color: var(--accent-contrast);
  text-transform: uppercase; letter-spacing: .05em; font-weight: 700;
}
.btn-primary:hover { filter: brightness(.85); }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-green { background: linear-gradient(135deg, #22c55e, #16a34a); border: none; color: #04210f; }
.btn-ghost { background: transparent; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* Inputs */
input, select, textarea {
  font: inherit; background: var(--panel-2); border: 1px solid var(--line); color: var(--text);
  padding: 9px 12px; border-radius: 10px; outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
label.field { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--line); font-size: 14px; }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
tbody tr { cursor: pointer; }
tbody tr:hover { background: var(--panel-2); }

/* Badges & chips */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.badge.ready { background: rgba(74,222,128,.15); color: var(--green); }
.badge.close { background: rgba(250,204,21,.15); color: var(--amber); }
.badge.progress { background: rgba(96,165,250,.15); color: var(--blue); }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; background: var(--panel-2); border: 1px solid var(--line); font-size: 12px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.primary-tag { font-size: 10px; background: var(--accent); color: #fff; padding: 1px 6px; border-radius: 6px; }

/* Progress bar */
.bar { height: 8px; background: var(--panel-2); border-radius: 999px; overflow: hidden; min-width: 90px; }
.bar > span { display: block; height: 100%; background: var(--green); }

/* Stripe ladder */
.ladder { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.stripe-pill { display: flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 8px; border: 1px solid var(--line); font-size: 12px; font-weight: 600; }
.stripe-pill.current { outline: 2px solid var(--accent); }
.stripe-pill.done { opacity: .65; }

/* Requirement rows */
.req { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; margin-bottom: 8px; background: var(--panel); }
.req .meta { font-size: 12px; color: var(--muted); }
.req-actions { display: flex; gap: 6px; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg button { border: none; border-radius: 0; background: var(--panel-2); padding: 6px 10px; font-size: 12px; }
.seg button.on-passed { background: var(--green); color: #04210f; }
.seg button.on-progress { background: var(--blue); color: #04162b; }
.seg button.on-none { background: var(--panel); color: var(--muted); }

/* Detail layout */
.detail-grid { display: grid; grid-template-columns: 300px 1fr; gap: 20px; align-items: start; }
@media (max-width: 820px) { .detail-grid { grid-template-columns: 1fr; } nav { display: none; } }
.kv { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }
.kv .k { color: var(--muted); }

.muted { color: var(--muted); }
.right { text-align: right; }
.spacer { flex: 1; }
.hidden { display: none !important; }
a.link { color: var(--accent); cursor: pointer; }

/* ── Rich lesson editor (Canvas-style) ── */
.modal.editor-modal { max-width: 920px; display: flex; flex-direction: column; max-height: 92vh; }
.rte-toolbar {
  display: flex; flex-wrap: wrap; gap: 4px; padding: 8px;
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px 10px 0 0;
  position: sticky; top: 0; z-index: 5;
}
.rte-toolbar button {
  padding: 6px 10px; font-size: 13px; border-radius: 7px; border: 1px solid transparent;
  background: transparent; min-width: 34px;
}
.rte-toolbar button:hover { background: var(--panel); border-color: var(--line); }
.rte-toolbar .sep { width: 1px; background: var(--line); margin: 4px 4px; }
.rte-area {
  min-height: 320px; max-height: 52vh; overflow-y: auto; outline: none;
  background: #fff; color: #1c1530; border: 1px solid var(--line); border-top: none;
  border-radius: 0 0 10px 10px; padding: 18px 22px; font-size: 15px; line-height: 1.6;
}
.rte-area:focus { border-color: var(--accent); }
.rte-source {
  width: 100%; min-height: 320px; max-height: 52vh; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px; border-radius: 0 0 10px 10px; border-top: none; resize: vertical;
}
.rte-hint { font-size: 12px; color: var(--muted); margin-top: 8px; }

/* Rendered lesson content (editor + viewer share these) */
.lesson-content img, .rte-area img { max-width: 100%; height: auto; border-radius: 8px; }
.lesson-content video, .rte-area video { max-width: 100%; border-radius: 8px; }
.lesson-content audio, .rte-area audio { width: 100%; }
.lesson-content iframe, .rte-area iframe { max-width: 100%; aspect-ratio: 16 / 9; width: 100%; border: 0; border-radius: 8px; }
.lesson-content blockquote, .rte-area blockquote { border-left: 3px solid var(--accent); margin: 8px 0; padding: 4px 14px; opacity: .9; }
.rte-area a { color: #6d28d9; }
.lesson-content a { color: var(--accent); }
.file-card {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px; margin: 4px 0;
  border: 1px solid #d8d2ea; background: #f5f3fb; color: #4c1d95 !important; border-radius: 10px;
  text-decoration: none; font-weight: 600; font-size: 14px;
}
.lesson-content .file-card { border-color: var(--line); background: var(--panel-2); color: var(--text) !important; }

.modal.lesson-viewer { max-width: 760px; max-height: 88vh; overflow-y: auto; }
.lesson-viewer .lesson-content { background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px; padding: 16px 20px; }
.lesson-badge { font-size: 11px; background: rgba(255,255,255,.14); color: var(--text); padding: 2px 8px; border-radius: 6px; font-weight: 700; cursor: pointer; }

/* ── Nav extras ── */
nav a .nbadge { background: var(--red); color: #fff; border-radius: 999px; font-size: 10px; padding: 1px 6px; margin-left: 4px; vertical-align: 2px; }
.role-chip { font-size: 11px; padding: 2px 8px; border-radius: 999px; background: var(--panel-2); border: 1px solid var(--line); color: var(--muted); }

/* ── Tabs ── */
.tabs { display: flex; gap: 6px; margin-bottom: 18px; border-bottom: 1px solid var(--line); }
.tabs button { border: none; background: transparent; color: var(--muted); padding: 10px 14px; border-bottom: 2px solid transparent; border-radius: 0; }
.tabs button.on { color: var(--text); border-bottom-color: var(--accent); }

/* ── Messages ── */
.msg-list .conv { display: flex; justify-content: space-between; gap: 12px; padding: 14px 16px; border-bottom: 1px solid var(--line); cursor: pointer; }
.msg-list .conv:hover { background: var(--panel-2); }
.bubble { max-width: 70%; padding: 10px 14px; border-radius: 14px; margin: 6px 0; background: var(--panel-2); border: 1px solid var(--line); }
.bubble.mine { margin-left: auto; background: var(--accent); border: none; color: var(--accent-contrast); }
.bubble .who { font-size: 11px; opacity: .7; margin-bottom: 2px; }
.unread-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); display: inline-block; margin-right: 6px; }

/* ── Attendance ── */
.att-seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.att-seg button { border: none; border-radius: 0; background: var(--panel-2); padding: 6px 10px; font-size: 12px; color: var(--muted); }
.att-seg button.on-present { background: var(--green); color: #04210f; }
.att-seg button.on-late { background: var(--amber); color: #2b2304; }
.att-seg button.on-absent { background: var(--red); color: #2b0707; }
.att-seg button.on-excused { background: var(--blue); color: #04162b; }

/* ── Analytics bars ── */
.bar-row { display: grid; grid-template-columns: 160px 1fr 70px; gap: 10px; align-items: center; padding: 6px 0; font-size: 14px; }
.bar-track { height: 14px; background: var(--panel-2); border-radius: 7px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--accent); border-radius: 7px; }

/* ── Assignment / announcement cards ── */
.a-card { border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin-bottom: 12px; background: var(--panel); }
.a-card h3 { margin: 0 0 6px; }
.a-card .lesson-content { margin-top: 10px; }
.due { font-size: 12px; color: var(--amber); }
.status-pill { font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.status-pill.submitted { background: rgba(96,165,250,.15); color: var(--blue); }
.status-pill.passed { background: rgba(74,222,128,.15); color: var(--green); }
.status-pill.needs_work { background: rgba(250,204,21,.15); color: var(--amber); }
.status-pill.missing { background: rgba(248,113,113,.12); color: var(--red); }

/* ── Portal ── */
.portal-hero { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; margin-bottom: 18px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.big-pct { font-size: 38px; font-weight: 800; color: var(--green); }
.student-switch { display: flex; gap: 8px; }
.student-switch button.on { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; border: none; }

select[multiple] { min-height: 110px; }

/* Modules */
.mod-header-row {
  display: flex; justify-content: space-between; align-items: center;
  text-transform: uppercase; letter-spacing: .08em; font-size: 12px; font-weight: 700;
  color: var(--muted); padding: 10px 12px 4px; border-bottom: 1px solid var(--line); margin-bottom: 8px;
}
.item-icon { display: inline-block; width: 22px; text-align: center; }
.locked-module { opacity: .65; }
.quiz-q { padding: 12px 0; border-bottom: 1px solid var(--line); }
.quiz-opt { display: flex; gap: 8px; align-items: center; padding: 6px 10px; border-radius: 8px; cursor: pointer; font-size: 14px; }
.quiz-opt:hover { background: var(--panel-2); }
.opt-correct { background: rgba(74,222,128,.15); outline: 1px solid var(--green); }
.opt-wrong { background: rgba(248,113,113,.15); outline: 1px solid var(--red); }

/* Private instructor materials (blueprint additions) */
.my-material { border-style: dashed; margin-left: 26px; background: var(--panel-2); }
.my-material .meta { font-size: 11px; }

/* Avatar circles (brand: white on black) */
.avatar {
  border-radius: 50%; background: var(--accent); color: var(--accent-contrast);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--display); letter-spacing: .02em;
}

/* Toast */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--panel); border: 1px solid var(--accent); color: var(--text);
  padding: 12px 18px; border-radius: 12px; box-shadow: var(--shadow); opacity: 0;
  transition: .25s; pointer-events: none; z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { border-color: var(--red); }

/* Modal */
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.55); display: flex; align-items: center; justify-content: center; z-index: 80; padding: 20px; }
.modal { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; width: 100%; max-width: 480px; box-shadow: var(--shadow); }
.modal h3 { margin: 0 0 16px; }
.modal .row { justify-content: flex-end; margin-top: 18px; }
.form-stack { display: flex; flex-direction: column; gap: 12px; }