/* Theme variables are switched via data-theme on */ :root{ --bg:#0b0d10; --card:#11151b; --panel:#0f1319; --text:#e9eef6; --muted:#97a3b6; --border:#222a35; --op:#121a26; --eq:#1d2633; --accent:#2b6cff; --screen:#0a0d12; --screen2:#0b0d10; --graphbg:#07090c; --grid:#1a2330; --axis:#516177; --plot:#9ad0ff; } html[data-theme="ti84"]{ --bg:#1a1b1f; --panel:#2a2d34; --card:#23262d; --text:#f2f5fb; --muted:#c0c8d6; --border:#3a3f4a; --op:#2c3240; --eq:#36425d; --accent:#6bb3ff; --screen:#1e232d; --screen2:#1b2029; --graphbg:#141821; --grid:#2a3240; --axis:#93a3bd; --plot:#d0e7ff; } html[data-theme="ti83"]{ --bg:#101316; --panel:#1b2025; --card:#161b20; --text:#f0f4f2; --muted:#b5c1bb; --border:#2b333a; --op:#1d2530; --eq:#223240; --accent:#7ee0a5; --screen:#0f1416; --screen2:#101517; --graphbg:#0a0e10; --grid:#1c262d; --axis:#89a79c; --plot:#c9ffe4; } *{box-sizing:border-box} body{ margin:0; font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif; background:var(--bg); color:var(--text); } /* Make the page breathe on all screens */ .shell{ max-width:1180px; margin:0 auto; padding: clamp(10px, 2vw, 18px); } /* Header: wrap-friendly */ .top{ display:flex; justify-content:space-between; align-items:flex-start; gap:12px; margin-bottom:14px; flex-wrap:wrap; } .title{font-weight:800;font-size:18px} .sub{color:var(--muted);font-size:13px;margin-top:2px} .link{color:var(--muted);text-decoration:none} .link:hover{color:var(--text)} .toolbar{ display:flex; gap:10px; align-items:center; flex-wrap:wrap; justify-content:flex-end; } .pill{ border-radius:999px; border:1px solid var(--border); background:var(--card); color:var(--text); padding:8px 10px; cursor:pointer; font-size:12px; font-weight:700; } .pill.alt{background:transparent;color:var(--muted)} .pill:hover{filter:brightness(1.07)} .selectWrap{display:flex;align-items:center;gap:8px} .selectWrap select{ background:transparent; color:var(--text); border:0; outline:none; font-weight:800; cursor:pointer; } /* Main layout: responsive columns */ .calc{ display:grid; grid-template-columns: minmax(0, 1fr) 320px; gap:12px; align-items:start; } .leftPane{min-width:0} /* Screen */ .screen{ background:linear-gradient(180deg,var(--screen), var(--screen2)); border:1px solid var(--border); border-radius:14px; padding:14px; margin-bottom:12px; } .line{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace} .small{color:var(--muted);font-size:12px;min-height:16px} .expr{color:var(--muted);font-size:13px;min-height:18px;word-break:break-word} .big{font-size:clamp(26px, 4.6vw, 34px);font-weight:800;min-height:40px;word-break:break-word} /* Key grid: tighter on small devices */ .grid{ display:grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: clamp(8px, 1.2vw, 10px); } .k{ padding: clamp(10px, 2.0vw, 12px) clamp(8px, 1.6vw, 10px); border-radius:14px; border:1px solid var(--border); background:var(--card); color:var(--text); cursor:pointer; font-weight:800; min-height:44px; /* thumb-friendly */ } .k:hover{filter:brightness(1.08)} .k.op{background:var(--op)} .k.alt{background:color-mix(in oklab, var(--card), transparent 20%); color:var(--muted)} .k.eq{background:var(--eq)} .k.wide{grid-column: span 2} /* History panel: not insanely tall on mobile */ .history{ background:var(--panel); border:1px solid var(--border); border-radius:14px; padding:12px; display:flex; flex-direction:column; min-height: 520px; } .histHead{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px} .mini{ border-radius:10px;border:1px solid var(--border); background:var(--card);color:var(--text); padding:6px 10px;cursor:pointer;font-size:12px } .histBody{ flex:1; overflow:auto; border-top:1px solid var(--border); padding-top:10px; } .item{padding:8px 0;border-bottom:1px dashed rgba(255,255,255,.10)} .item .q{color:var(--muted);font-family:ui-monospace,monospace;font-size:12px} .item .a{font-family:ui-monospace,monospace;font-size:14px;font-weight:900} .hint{margin-top:10px;color:var(--muted);font-size:12px} /* Graph */ .graph{ border:1px solid var(--border); border-radius:14px; background:var(--panel); padding:12px; margin-bottom:12px; } .hidden{display:none} .graphTop{ display:flex; justify-content:space-between; gap:10px; align-items:center; flex-wrap:wrap; margin-bottom:10px; } .graphTitle{font-weight:900} .graphControls{ display:flex; gap:8px; flex-wrap:wrap; } .graphControls label{ color:var(--muted); font-size:12px; display:flex; gap:6px; align-items:center } .graphControls input{ width:76px; max-width: 30vw; border-radius:10px; border:1px solid var(--border); background:var(--card); color:var(--text); padding:6px 8px; outline:none } .graphFn{margin-bottom:10px} .fnRow{ display:flex; gap:8px; align-items:center; flex-wrap:wrap; margin-top:8px } .fnInput{ flex:1; min-width: 180px; border-radius:12px; border:1px solid var(--border); background:var(--card); color:var(--text); padding:10px 12px; outline:none; font-family:ui-monospace,monospace; } .mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace} /* Canvas: always fit container; keep ratio; prevent overflow */ canvas{ width:100%; height:auto; display:block; border-radius:12px; background:var(--graphbg); border:1px solid var(--border); max-width: 100%; } /* --- Responsive breakpoints --- */ @media (max-width: 980px){ .calc{grid-template-columns:1fr} .history{min-height:260px; max-height: 38vh;} .histBody{max-height: 28vh;} } @media (max-width: 520px){ .toolbar{justify-content:flex-start} .history{max-height: 34vh;} .k{border-radius:12px} .screen{padding:12px} }