@import url('layout_fix.css');
/* ════════════════════════════════════════════════════════
   PIANO LMS v9.2 — Complete Design System
   ════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  background: #f4f4f4;
  color: #111;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ── TOKENS ── */
:root {
  --ink:       #111111;
  --ink-soft:  #444444;
  --ink-muted: #888888;
  --bg:        #f4f4f4;
  --surface:   #ffffff;
  --border:    #e5e5e5;
  --border-md: #cccccc;
  --red:       #c0392b;
  --green:     #1a7a3a;
  --blue:      #1e90ff;
  --gold:      #c9973a;
  --r-sm: 6px; --r-md: 10px; --r-lg: 14px; --r-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.07);
  --shadow-md: 0 4px 16px rgba(0,0,0,.09);
  --sidebar-w: 230px;
  --topbar-h:  56px;
  --trans:     160ms ease;
}

/* ════════════════════════════════════════════════════════
   !! LAYOUT FIX — The critical issue causing overlap !!
   Sidebar is fixed-position. main-content must have
   margin-left = sidebar width on desktop ONLY.
   ════════════════════════════════════════════════════════ */
.shell {
  display: block;          /* NOT flex — flex was causing the overlap */
  min-height: 100vh;
}

/* SIDEBAR */
.sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 0 0 20px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 300;
  /* Hidden on mobile by default */
  transform: translateX(-100%);
  transition: transform var(--trans);
}
.sidebar.open { transform: translateX(0); }

/* Desktop: always visible, main-content offset */
@media (min-width: 769px) {
  .sidebar {
    transform: translateX(0);   /* Always show */
  }
  .main-content {
    margin-left: var(--sidebar-w);  /* Offset by sidebar width */
  }
}

.main-content {
  min-height: 100vh;
  min-width: 0;
  margin-left: 0;  /* Mobile: no offset */
}

/* OVERLAY */
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.42);
  z-index: 290;
}
.sidebar-overlay.open { display: block; }

/* ── SIDEBAR HEADER (Logo area) ── */
.sidebar-header {
  padding: 16px 16px 14px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-logo img {
  height: 28px;
  width: auto;
  object-fit: contain;
}
.sidebar-logo-fallback {
  font-size: 13px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -.01em;
}
.sidebar-user {
  font-size: 11px;
  color: var(--ink-muted);
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 150px;
}
.sidebar-close {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: #bbb;
  line-height: 1;
  padding: 4px;
  flex-shrink: 0;
  display: none;  /* shown via JS on mobile */
}
@media (max-width: 768px) {
  .sidebar-close { display: flex; align-items: center; }
}

.nav-section {
  padding: 0 8px;
  margin-bottom: 2px;
}
.nav-section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding: 8px 10px 4px;
}

/* NAV LINKS with icons */
.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--r-md);
  font-size: 13px;
  color: var(--ink-soft);
  text-decoration: none;
  border: none; background: none;
  cursor: pointer; width: 100%; text-align: left;
  transition: background var(--trans), color var(--trans);
  position: relative;
}
.nav-link:hover  { background: var(--bg); color: var(--ink); }
.nav-link.active { background: #ebebeb; color: var(--ink); font-weight: 700; }
.nav-icon {
  width: 18px; height: 18px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  opacity: .55;
}
.nav-link.active .nav-icon { opacity: 1; }
.nav-link:hover .nav-icon  { opacity: .8; }
.nav-dot {
  position: absolute; right: 10px; top: 50%;
  transform: translateY(-50%);
  background: var(--red); color: #fff;
  font-size: 9px; font-weight: 800;
  min-width: 16px; height: 16px;
  border-radius: 99px;
  display: flex; align-items: center; justify-content: center;
  padding: 0 3px;
}
.nav-bottom { margin-top: auto; padding: 8px 8px 0; border-top: 1px solid var(--border); }

/* ── TOPBAR ── */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  height: var(--topbar-h);
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky; top: 0; z-index: 100;
  gap: 12px;
}
@media (max-width: 768px) { .topbar { padding: 0 14px; } }
.topbar-left  { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; }
.topbar-right { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.topbar h1 {
  font-size: 15px; font-weight: 700;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--ink);
}
.back-link {
  color: var(--ink-muted); font-size: 22px; line-height: 1;
  padding: 4px 2px; display: flex; align-items: center;
  flex-shrink: 0; transition: color var(--trans);
}
.back-link:hover { color: var(--ink); }

/* ── HAMBURGER — 3 clean lines, mobile only ── */
.hb {
  display: none;
  flex-direction: column;
  justify-content: center; align-items: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: none; border: none;
  cursor: pointer; padding: 8px 6px;
  flex-shrink: 0;
  border-radius: var(--r-sm);
  -webkit-tap-highlight-color: transparent;
  transition: background var(--trans);
}
.hb:hover { background: var(--bg); }
.hb span { display: block; width: 22px; height: 2.5px; background: var(--ink); border-radius: 2px; transition: all 200ms ease; }
.hb.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hb.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hb.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
@media (max-width: 768px) { .hb { display: flex; } }
@media (min-width: 769px) { .hb { display: none !important; } }

/* ── TOPBAR ICON BUTTONS ── */
.tb-icon-btn {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--ink-muted);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--trans), color var(--trans);
  position: relative;
  flex-shrink: 0;
}
.tb-icon-btn:hover { background: var(--bg); color: var(--ink); }
.tb-icon-btn svg { width: 18px; height: 18px; }
.tb-badge {
  position: absolute; top: -3px; right: -3px;
  background: var(--red); color: #fff;
  font-size: 9px; font-weight: 800;
  min-width: 15px; height: 15px;
  border-radius: 99px;
  display: flex; align-items: center; justify-content: center;
  border: 2px solid var(--surface); padding: 0 2px;
}

/* ── LANG TOGGLE ── */
.lang-toggle {
  display: flex;
  border: 1.5px solid var(--border-md);
  border-radius: var(--r-full);
  overflow: hidden;
  background: var(--bg);
}
.lang-btn {
  padding: 4px 12px; font-size: 11px; font-weight: 700;
  letter-spacing: .04em; border: none; background: transparent;
  color: var(--ink-muted); cursor: pointer;
  transition: all var(--trans); line-height: 1.4;
}
.lang-btn.active { background: var(--ink); color: #fff; border-radius: var(--r-full); }

/* ── PAGE BODY ── */
.page-body { padding: 20px 22px; max-width: 860px; }
@media (max-width: 768px) { .page-body { padding: 14px 14px; } }

/* ════════════════════════════════════════════════════════
   CARDS, METRICS, BUTTONS, FORMS, etc.
   ════════════════════════════════════════════════════════ */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 18px 20px; margin-bottom: 14px; }
@media (max-width: 768px) { .card { padding: 14px 14px; } }
.card-title { font-size: 13px; font-weight: 700; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; color: var(--ink); }

/* METRICS */
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 16px; }
@media (max-width: 600px) { .metrics { grid-template-columns: repeat(2, 1fr); } }
.metric { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md); padding: 14px 12px; text-align: center; }
.metric-num { font-size: 22px; font-weight: 800; line-height: 1.1; color: var(--ink); }
.metric-lbl { font-size: 10px; color: var(--ink-muted); text-transform: uppercase; letter-spacing: .07em; margin-top: 4px; }

/* PROGRESS */
.progress-bar  { background: #e5e5e5; border-radius: var(--r-full); height: 7px; overflow: hidden; }
.progress-fill { background: var(--ink); height: 100%; border-radius: var(--r-full); transition: width .4s ease; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 9px 18px; border-radius: var(--r-md); font-size: 13px; font-weight: 600; border: none; cursor: pointer; text-decoration: none; transition: opacity var(--trans), transform var(--trans); line-height: 1.4; white-space: nowrap; }
.btn:hover { opacity: .85; }
.btn:active { transform: scale(.98); }
.btn-dark    { background: var(--ink); color: #fff; }
.btn-outline { background: none; border: 1px solid var(--border-md); color: var(--ink); }
.btn-outline:hover { background: var(--bg); opacity: 1; }
.btn-red   { background: var(--red);   color: #fff; }
.btn-green { background: var(--green); color: #fff; }
.btn-blue  { background: var(--blue);  color: #fff; }
.btn-sm  { padding: 5px 12px; font-size: 12px; }
.btn-xs  { padding: 3px 9px;  font-size: 11px; }
.btn-full { width: 100%; }

/* FORMS */
.form-group    { margin-bottom: 14px; }
.form-label    { display: block; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 5px; }
.form-input, .form-select, .form-textarea { width: 100%; padding: 10px 13px; border: 1px solid var(--border-md); border-radius: var(--r-md); background: var(--surface); color: var(--ink); font-size: 14px; transition: border-color var(--trans); }
.form-input:focus, .form-select:focus, .form-textarea:focus { outline: none; border-color: var(--ink); }
.form-textarea { resize: vertical; min-height: 80px; line-height: 1.5; }
.form-grid-2   { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-full     { grid-column: 1 / -1; }
.form-hint     { font-size: 11px; color: var(--ink-muted); margin-top: 4px; }
@media (max-width: 600px) { .form-grid-2 { grid-template-columns: 1fr; } }

/* ALERTS & BADGES */
.alert         { padding: 12px 16px; border-radius: var(--r-md); font-size: 13px; margin-bottom: 14px; line-height: 1.5; }
.alert-success { background: #eafaf1; color: var(--green); border: 1px solid #a8d8b4; }
.alert-error   { background: #fdf0f0; color: var(--red);   border: 1px solid #e8b0b0; }
.alert-info    { background: #eef4ff; color: #1a4fa0;      border: 1px solid #b0c8f0; }
.badge        { display: inline-block; padding: 3px 10px; border-radius: var(--r-full); font-size: 11px; font-weight: 700; }
.badge-black  { background: var(--ink); color: #fff; }
.badge-gray   { background: #eee; color: var(--ink-soft); border: 1px solid var(--border); }
.badge-green  { background: #eafaf1; color: var(--green); border: 1px solid #a8d8b4; }
.badge-red    { background: #fdf0f0; color: var(--red);   border: 1px solid #e8b0b0; }
.badge-blue   { background: #eef4ff; color: #1a4fa0;      border: 1px solid #b0c8f0; }
.badge-orange { background: #fef5e7; color: #c47a00;      border: 1px solid #f0d090; }
.badge-gold   { background: #fffbea; color: var(--gold);  border: 1px solid #f0d090; }
.pill         { display: inline-block; padding: 3px 12px; border-radius: var(--r-full); font-size: 11px; background: #eee; color: var(--ink-soft); border: 1px solid var(--border); }

/* PREMIUM BADGE */
.premium-badge {
  display: inline-flex; align-items: center; gap: 5px;
  background: linear-gradient(135deg, #f5c842, #e8a020);
  color: #111; font-size: 10px; font-weight: 800;
  padding: 3px 10px; border-radius: var(--r-full);
  letter-spacing: .04em; text-transform: uppercase;
}

/* TABLES */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; padding: 9px 12px; font-size: 11px; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-muted); border-bottom: 1px solid var(--border); font-weight: 700; }
td { padding: 10px 12px; border-bottom: 1px solid #f0f0f0; vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg); }

/* EPISODE LIST */
.ep-list { display: flex; flex-direction: column; gap: 8px; }
.ep-row  { display: flex; align-items: center; gap: 13px; padding: 13px 16px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); text-decoration: none; color: inherit; transition: border-color var(--trans), box-shadow var(--trans); }
.ep-row:hover   { border-color: var(--ink); box-shadow: var(--shadow-sm); }
.ep-row.locked  { opacity: .4; pointer-events: none; }
.ep-row.done    { background: #fafafa; }
.ep-row.current { border-color: var(--ink); border-width: 2px; }
.ep-circle { width: 34px; height: 34px; border-radius: 50%; border: 1.5px solid var(--border-md); display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; flex-shrink: 0; color: var(--ink-soft); }
.ep-circle.done    { background: var(--ink); color: #fff; border-color: var(--ink); }
.ep-circle.current { background: #f0f0f0; border-color: var(--ink); color: var(--ink); }
.ep-info  { flex: 1; min-width: 0; }
.ep-title { font-size: 13px; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ep-meta  { font-size: 12px; color: var(--ink-muted); margin-top: 2px; }
.ep-badge { font-size: 11px; flex-shrink: 0; padding: 3px 10px; border-radius: var(--r-full); background: #f0f0f0; color: var(--ink-soft); border: 1px solid var(--border); white-space: nowrap; }
.ep-badge.done { background: var(--ink); color: #fff; border-color: var(--ink); }

/* VIDEO */
.video-wrap  { background: #000; border-radius: var(--r-lg); overflow: hidden; margin-bottom: 12px; }
.video-ratio { position: relative; padding-bottom: 56.25%; }
.video-ratio iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: none; }
.no-video { padding: 48px; text-align: center; color: var(--ink-muted); font-size: 13px; }
.video-controls { display: flex; align-items: center; gap: 8px; padding: 9px 14px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md); margin-bottom: 12px; flex-wrap: wrap; }
.speed-btn { padding: 4px 10px; border-radius: var(--r-full); font-size: 12px; font-weight: 700; border: 1px solid var(--border-md); background: var(--surface); color: var(--ink-muted); cursor: pointer; transition: all var(--trans); }
.speed-btn.active { background: var(--ink); color: #fff; border-color: var(--ink); }

/* CHAT */
.chat-scroll { display: flex; flex-direction: column; gap: 10px; max-height: 360px; overflow-y: auto; padding: 4px 0 8px; margin-bottom: 12px; }
.msg { display: flex; flex-direction: column; max-width: 80%; }
.msg.student { align-self: flex-end;   align-items: flex-end; }
.msg.admin   { align-self: flex-start; align-items: flex-start; }
.msg-bubble  { padding: 10px 14px; border-radius: 12px; font-size: 13px; line-height: 1.5; }
.msg.student .msg-bubble { background: var(--ink); color: #fff; border-radius: 12px 12px 2px 12px; }
.msg.admin   .msg-bubble { background: #f0f0f0; color: var(--ink); border-radius: 12px 12px 12px 2px; }
.msg-meta { font-size: 11px; color: var(--ink-muted); margin-top: 3px; padding: 0 4px; }
.chat-input-row { display: flex; gap: 8px; }
.chat-input-row input { flex: 1; padding: 10px 13px; border: 1px solid var(--border-md); border-radius: var(--r-md); font-size: 14px; background: var(--surface); color: var(--ink); }
.chat-input-row input:focus { outline: none; border-color: var(--ink); }

/* RESOURCES VIDEO GRID */
.video-res-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 10px; }
@media (max-width: 768px) { .video-res-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 400px) { .video-res-grid { grid-template-columns: 1fr; } }
.video-res-card {
  background: #000;
  border-radius: var(--r-md);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  aspect-ratio: 9/16;
}
.video-res-card iframe { width: 100%; height: 100%; border: none; display: block; }
.video-res-card .vrc-thumb { width: 100%; height: 100%; object-fit: cover; display: block; }
.video-res-card .vrc-play {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,.3);
  transition: background var(--trans);
}
.video-res-card:hover .vrc-play { background: rgba(0,0,0,.5); }
.video-res-card .vrc-title {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,.85));
  padding: 20px 10px 10px;
  font-size: 12px; font-weight: 700; color: #fff;
  line-height: 1.3;
}
.premium-locked-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,.7);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 8px; color: #fff;
}

/* COMMUNITY */
.post-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 16px; margin-bottom: 10px; }
.post-header { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 8px; }
.avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--ink); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; flex-shrink: 0; }
.post-author { font-size: 13px; font-weight: 700; }
.post-time   { font-size: 11px; color: var(--ink-muted); }
.post-title  { font-size: 14px; font-weight: 700; margin-bottom: 5px; }
.post-body   { font-size: 13px; color: var(--ink-soft); line-height: 1.6; }
.post-footer { display: flex; gap: 10px; margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--border); }
.post-action { display: flex; align-items: center; gap: 5px; font-size: 12px; color: var(--ink-muted); background: none; border: none; cursor: pointer; padding: 4px 8px; border-radius: var(--r-sm); transition: background var(--trans); }
.post-action:hover { background: var(--bg); color: var(--ink); }
.replies-wrap { margin-top: 10px; display: none; }
.replies-wrap.open { display: block; }
.reply-item { padding: 10px 12px; border-radius: var(--r-md); margin-bottom: 6px; font-size: 13px; line-height: 1.5; }
.reply-admin { background: #eef4ff; border-left: 3px solid var(--blue); }
.reply-std   { background: var(--bg); border: 1px solid var(--border); }

/* NOTIFICATIONS */
.notif-item { display: flex; gap: 12px; padding: 13px 14px; border-radius: var(--r-md); margin-bottom: 7px; border: 1px solid var(--border); background: var(--surface); }
.notif-item.unread { background: #f8fff4; border-color: #b8ddb8; }
.notif-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); flex-shrink: 0; margin-top: 4px; }
.notif-dot.read { background: var(--border-md); }
.notif-title { font-size: 13px; font-weight: 700; margin-bottom: 3px; }
.notif-body  { font-size: 12px; color: var(--ink-soft); line-height: 1.5; }
.notif-time  { font-size: 11px; color: var(--ink-muted); margin-top: 4px; }

/* CERTIFICATE */
.cert-outer { background: #f0f0f0; border-radius: var(--r-lg); padding: 20px; overflow: hidden; margin-bottom: 16px; }
#certificate { width: 100%; max-width: 760px; background: #fff; border: 3px solid var(--gold); border-radius: 12px; padding: 50px 56px; text-align: center; position: relative; font-family: Georgia, 'Times New Roman', serif; margin: 0 auto; }
.cert-corner { position: absolute; width: 44px; height: 44px; border-color: var(--gold); border-style: solid; opacity: .55; }
.cert-corner.tl { top: 12px; left: 12px; border-width: 2px 0 0 2px; }
.cert-corner.tr { top: 12px; right: 12px; border-width: 2px 2px 0 0; }
.cert-corner.bl { bottom: 12px; left: 12px; border-width: 0 0 2px 2px; }
.cert-corner.br { bottom: 12px; right: 12px; border-width: 0 2px 2px 0; }
.cert-inner-border { position: absolute; inset: 18px; border: 1px solid #e8d090; border-radius: 6px; pointer-events: none; }
@media (max-width: 680px) {
  .cert-outer { padding: 10px; }
  #certificate { transform: scale(0.48); transform-origin: top center; width: 208%; margin-left: -54%; margin-bottom: -52%; padding: 36px 38px; }
}

/* QUIZ */
.quiz-opt { width: 100%; text-align: left; padding: 11px 16px; border: 1px solid var(--border-md); border-radius: var(--r-md); background: var(--surface); color: var(--ink); font-size: 14px; cursor: pointer; margin-bottom: 8px; display: block; transition: background var(--trans); }
.quiz-opt:hover   { background: var(--bg); }
.quiz-opt.correct { background: var(--ink); color: #fff; border-color: var(--ink); }
.quiz-opt.wrong   { opacity: .35; text-decoration: line-through; cursor: default; }
.quiz-explanation { background: var(--bg); border-radius: var(--r-md); padding: 11px 14px; font-size: 13px; color: var(--ink-soft); margin-top: 8px; line-height: 1.5; display: none; }

/* ADMIN MESSAGES */
.inbox-wrap { display: grid; grid-template-columns: 280px 1fr; gap: 0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden; min-height: 520px; }
@media (max-width: 768px) { .inbox-wrap { grid-template-columns: 1fr; } .inbox-thread-view { display: none; } .inbox-thread-view.show { display: flex; } }
.thread-item { display: block; padding: 12px 14px; border-bottom: 1px solid #f5f5f5; cursor: pointer; text-decoration: none; color: inherit; transition: background var(--trans); position: relative; }
.thread-item:hover  { background: var(--bg); }
.thread-item.active { background: #f0f0f0; border-left: 3px solid var(--ink); }
.thread-item.unread { background: #fff8f8; }
.t-name  { font-size: 13px; font-weight: 700; margin-bottom: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding-right: 40px; }
.t-ep    { font-size: 11px; color: var(--ink-muted); margin-bottom: 2px; }
.t-time  { font-size: 10px; color: #bbb; position: absolute; top: 12px; right: 12px; }
.t-badge { position: absolute; bottom: 11px; right: 12px; background: var(--red); color: #fff; font-size: 9px; font-weight: 800; min-width: 16px; height: 16px; border-radius: 99px; display: flex; align-items: center; justify-content: center; padding: 0 3px; }
.inbox-thread-view { display: flex; flex-direction: column; }
.thread-head   { padding: 14px 20px; border-bottom: 1px solid var(--border); background: #fafafa; flex-shrink: 0; }
.thread-body   { flex: 1; overflow-y: auto; padding: 14px 20px; display: flex; flex-direction: column; gap: 10px; background: #f9f9f9; max-height: 440px; }
.thread-footer { padding: 12px 20px; border-top: 1px solid var(--border); background: var(--surface); flex-shrink: 0; }
.thread-empty  { flex: 1; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 8px; color: var(--ink-muted); font-size: 13px; background: #fafafa; padding: 60px 20px; text-align: center; }
.compose-wrap  { display: flex; gap: 10px; align-items: flex-end; }
.compose-input { flex: 1; padding: 10px 14px; border: 1.5px solid var(--border); border-radius: var(--r-md); font-size: 14px; font-family: inherit; resize: none; min-height: 42px; max-height: 120px; line-height: 1.5; transition: border-color var(--trans); background: var(--surface); color: var(--ink); }
.compose-input:focus { outline: none; border-color: var(--ink); }
.compose-send  { flex-shrink: 0; width: 42px; height: 42px; border-radius: 50%; background: var(--ink); color: #fff; border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 18px; transition: opacity var(--trans); }
.compose-send:hover { opacity: .8; }

/* MAT ROW */
.mat-row  { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--r-md); margin-bottom: 7px; background: var(--surface); }
.mat-icon { font-size: 18px; flex-shrink: 0; }
.mat-info { flex: 1; min-width: 0; }
.mat-name { font-size: 13px; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mat-desc { font-size: 12px; color: var(--ink-muted); }

/* PRACTICE CHIPS */
.prac-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }
.prac-chip  { display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--r-full); font-size: 12px; font-weight: 600; color: var(--ink-soft); text-decoration: none; transition: all var(--trans); }
.prac-chip:hover { background: var(--ink); color: #fff; border-color: var(--ink); }

/* MILESTONE */
.milestone-tag { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; color: var(--gold); font-weight: 700; background: #fef5e7; border: 1px solid #f0d090; border-radius: var(--r-full); padding: 3px 10px; }

/* AUTH */
.auth-page  { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg); padding: 20px; }
.auth-card  { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 32px; width: 100%; max-width: 380px; box-shadow: var(--shadow-md); }
.auth-logo  { margin-bottom: 16px; }
.auth-logo img { height: 32px; width: auto; }
.auth-title { font-size: 22px; font-weight: 800; margin-bottom: 6px; color: var(--ink); }
.auth-sub   { font-size: 13px; color: var(--ink-muted); margin-bottom: 22px; }

/* ACCORDION */
.accordion   { border: 1px solid var(--border); border-radius: var(--r-lg); margin-bottom: 8px; overflow: hidden; }
.acc-head    { display: flex; align-items: center; gap: 12px; padding: 13px 16px; cursor: pointer; background: var(--surface); border: none; width: 100%; text-align: left; transition: background var(--trans); }
.acc-head:hover { background: var(--bg); }
.acc-body    { border-top: 1px solid var(--border); padding: 18px; display: none; }
.acc-body.open { display: block; }

/* HIDDEN UTIL */
.hidden { display: none !important; }