:root{
  --clay:#B85C38;
  --clay-deep:#8F4429;
  --burgundy:#7A1F3D;
  --burgundy-dark:#5A1630;
  --azulejo:#2C5F6F;
  --azulejo-light:#5C93A5;
  --iron:#221F1D;
  --stone:#E9E3D2;
  --stone-card:#F7F3E7;
  --ink:#2A211D;
  --ink-soft:#6B5D51;
  --line:#DCD2B9;
  --radius:14px;
  --shadow: 0 2px 10px rgba(34,31,29,0.09);
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--stone);
  color:var(--ink);
  font-family:'Work Sans', sans-serif;
  font-size:16px;
  line-height:1.45;
  min-height:100vh;
}
h1,h2,h3,.display{
  font-family:'Spectral', serif;
  font-weight:600;
  letter-spacing:-0.01em;
}
.mono{ font-family:'JetBrains Mono', monospace; }

.app{ display:flex; min-height:100vh; }

/* ---------- Sidebar ---------- */
.sidebar{
  width:220px;
  flex-shrink:0;
  background:var(--burgundy-dark);
  color:var(--stone-card);
  padding:28px 0 20px;
  position:sticky;
  top:0;
  height:100vh;
  display:flex;
  flex-direction:column;
}
.brand{
  padding:0 22px 22px;
  border-bottom:1px solid rgba(255,255,255,0.14);
  margin-bottom:14px;
}
.brand-eyebrow{
  font-family:'JetBrains Mono', monospace;
  font-size:11px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--clay);
  margin:0 0 6px;
}
.brand h1{
  font-size:23px;
  margin:0;
  color:#fff;
  line-height:1.15;
}
.brand .sub{
  font-size:13px;
  color:rgba(255,255,255,0.55);
  margin-top:6px;
}
nav.categories{
  display:flex;
  flex-direction:column;
  gap:2px;
  padding:6px 12px;
  flex:1;
}
.nav-item{
  display:flex;
  align-items:center;
  gap:12px;
  padding:11px 12px;
  border-radius:10px;
  color:rgba(255,255,255,0.72);
  cursor:pointer;
  font-size:14.5px;
  font-weight:500;
  border:none;
  background:transparent;
  text-align:left;
  width:100%;
  transition:background 0.15s ease, color 0.15s ease;
}
.nav-item:hover{ background:rgba(255,255,255,0.08); color:#fff; }
.nav-item.active{ background:var(--azulejo); color:#fff; }
.tile-icon{ width:20px; height:20px; flex-shrink:0; }
.tile-icon svg{ width:100%; height:100%; display:block; }
.nav-count{
  margin-left:auto;
  font-family:'JetBrains Mono', monospace;
  font-size:10.5px;
  opacity:0.55;
}
.sidebar-foot{
  padding:14px 22px 0;
  font-size:11.5px;
  color:rgba(255,255,255,0.42);
  border-top:1px solid rgba(255,255,255,0.12);
  margin-top:10px;
}

/* ---------- Main ---------- */
main{ flex:1; min-width:0; padding:32px 40px 100px; }
.topbar{
  display:flex; align-items:center; justify-content:space-between;
  gap:20px; margin-bottom:22px; flex-wrap:wrap;
}
.topbar h2{ font-size:26px; margin:0; color:var(--burgundy-dark); }
.search-wrap{ position:relative; width:100%; max-width:340px; }
.search-wrap input{
  width:100%; padding:10px 14px 10px 36px; border-radius:10px;
  border:1px solid var(--line); background:#fff; font-size:14px;
  font-family:'Work Sans',sans-serif; color:var(--ink);
}
.search-wrap input:focus{ outline:2px solid var(--azulejo); outline-offset:1px; }
.search-wrap .icon{ position:absolute; left:11px; top:50%; transform:translateY(-50%); opacity:0.4; pointer-events:none; }

.tile-divider{ width:100%; height:16px; margin:0 0 26px; opacity:0.6; }

/* ---------- Panels ---------- */
.panel{ display:none; }
.panel.active{ display:block; }
.section-block{ margin-bottom:34px; }
.section-title{
  font-size:12px; text-transform:uppercase; letter-spacing:0.12em;
  color:var(--clay-deep); font-weight:600; margin:0 0 4px;
  font-family:'JetBrains Mono', monospace;
}
.section-note{ font-size:13.5px; color:var(--ink-soft); margin:0 0 16px; }

.grid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(240px,1fr)); gap:12px; }
.card{
  background:var(--stone-card); border:1px solid var(--line); border-radius:var(--radius);
  padding:14px 16px; box-shadow:var(--shadow); display:flex; flex-direction:column; gap:6px;
}
.card .greek{
  font-family:'Spectral', serif; font-weight:600; font-size:19px; color:var(--burgundy-dark);
  display:flex; align-items:center; justify-content:space-between; gap:8px;
}
.card .pron{ font-family:'JetBrains Mono', monospace; font-size:13.5px; color:var(--clay-deep); letter-spacing:0.01em; }
.card .eng{ font-size:14.5px; color:var(--ink-soft); }

.speak-btn{
  width:30px; height:30px; flex-shrink:0; border-radius:50%; border:1px solid var(--line);
  background:#fff; display:flex; align-items:center; justify-content:center; cursor:pointer;
  color:var(--azulejo); transition:background 0.15s ease, transform 0.1s ease;
}
.speak-btn:hover{ background:#EFDFC8; }
.speak-btn:active{ transform:scale(0.92); }
.speak-btn.playing{ background:var(--azulejo); color:#fff; }
.speak-btn svg{ width:14px; height:14px; }

.phrase-card{
  background:var(--stone-card); border:1px solid var(--line); border-left:4px solid var(--azulejo);
  border-radius:10px; padding:14px 16px; margin-bottom:10px; box-shadow:var(--shadow);
}
.phrase-card .greek{
  font-family:'Spectral', serif; font-weight:600; font-size:19px; color:var(--burgundy-dark);
  display:flex; align-items:center; gap:10px; flex-wrap:wrap;
}
.phrase-card .pron{ font-family:'JetBrains Mono', monospace; font-size:14px; color:var(--clay-deep); margin-top:4px; }
.phrase-card .eng{ font-size:14.5px; color:var(--ink-soft); margin-top:4px; }

/* alphabet */
.alpha-grid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(210px,1fr)); gap:10px; }
.alpha-card{
  background:var(--stone-card); border:1px solid var(--line); border-radius:12px;
  padding:12px 14px; display:flex; align-items:center; gap:12px; box-shadow:var(--shadow);
}
.alpha-letters{
  font-family:'Spectral', serif; font-weight:700; font-size:26px; color:var(--azulejo);
  width:52px; text-align:center; flex-shrink:0;
}
.alpha-info .name{ font-size:13px; font-weight:600; color:var(--burgundy-dark); }
.alpha-info .sound{ font-family:'JetBrains Mono', monospace; font-size:12.5px; color:var(--clay-deep); margin-top:2px; }
.alpha-info .example{ font-size:12px; color:var(--ink-soft); margin-top:2px; }

/* scenarios */
.scenario{
  background:var(--stone-card); border:1px solid var(--line); border-radius:var(--radius);
  box-shadow:var(--shadow); margin-bottom:20px; overflow:hidden;
}
.scenario-head{
  background:var(--burgundy-dark); color:#fff; padding:14px 18px; display:flex; align-items:center; gap:10px;
}
.scenario-head .num{
  font-family:'JetBrains Mono', monospace; font-size:12px; background:rgba(255,255,255,0.16);
  padding:2px 8px; border-radius:20px;
}
.scenario-head h3{ margin:0; font-size:17px; color:#fff; }
.scenario-body{ padding:14px 18px; }
.line{ display:flex; gap:12px; padding:9px 0; border-bottom:1px dashed var(--line); }
.line:last-child{ border-bottom:none; }
.line .who{
  flex-shrink:0; width:64px; font-size:11px; text-transform:uppercase; letter-spacing:0.06em;
  color:var(--ink-soft); font-weight:600; padding-top:3px;
}
.line .content .greek{
  font-family:'Spectral', serif; font-weight:600; font-size:16.5px; color:var(--burgundy-dark);
  display:flex; align-items:center; gap:8px;
}
.line .content .pron{ font-family:'JetBrains Mono', monospace; font-size:13px; color:var(--clay-deep); margin-top:2px; }
.line .content .eng{ font-size:13.5px; color:var(--ink-soft); margin-top:2px; font-style:italic; }

/* tips */
.tip-card{
  background:var(--stone-card); border:1px solid var(--line); border-radius:var(--radius);
  padding:16px 18px; margin-bottom:12px; box-shadow:var(--shadow); display:flex; gap:14px;
}
.tip-icon{
  flex-shrink:0; width:34px; height:34px; border-radius:50%; background:#EFDFC8;
  display:flex; align-items:center; justify-content:center; font-size:16px;
}
.tip-card h4{ margin:0 0 4px; font-size:15px; font-family:'Spectral', serif; color:var(--burgundy-dark); }
.tip-card p{ margin:0; font-size:14px; color:var(--ink-soft); }

.no-results{ text-align:center; padding:50px 20px; color:var(--ink-soft); font-size:14.5px; }

/* ---------- Mobile ---------- */
.mobile-tabbar{ display:none; }
@media (max-width: 760px){
  .sidebar{ display:none; }
  main{ padding:20px 16px 90px; }
  .topbar{ flex-direction:column; align-items:flex-start; }
  .topbar h2{ font-size:22px; }
  .search-wrap{ max-width:none; }
  .mobile-tabbar{
    display:flex; position:fixed; bottom:0; left:0; right:0;
    background:var(--burgundy-dark); z-index:50; padding:6px 4px 8px;
    justify-content:space-around; box-shadow:0 -3px 14px rgba(0,0,0,0.2);
  }
  .mobile-tabbar .tab{
    display:flex; flex-direction:column; align-items:center; gap:3px;
    background:none; border:none; color:rgba(255,255,255,0.62); font-size:10.5px;
    font-family:'Work Sans',sans-serif; font-weight:600; padding:6px 4px; border-radius:10px; flex:1;
  }
  .mobile-tabbar .tab.active{ color:#fff; background:var(--azulejo); }
  .mobile-tabbar .tab svg{ width:19px; height:19px; }
  .mobile-brand{ display:flex; align-items:baseline; gap:8px; margin-bottom:18px; }
  .mobile-brand h1{ font-size:20px; margin:0; color:var(--burgundy-dark); }
  .mobile-brand span{
    font-family:'JetBrains Mono', monospace; font-size:10px; color:var(--clay-deep);
    text-transform:uppercase; letter-spacing:0.1em;
  }
}
@media (min-width:761px){ .mobile-brand{ display:none; } }

::selection{ background:#EFDFC8; }
:focus-visible{ outline:2px solid var(--azulejo); outline-offset:2px; }