fix(ui): change ui theme color

feat(calc): add geogebra based graph calculator for tests

package.json

@@ -17,6 +17,7 @@
     "@radix-ui/react-tabs": "^1.1.13",
     "@tailwindcss/vite": "^4.1.18",
     "@tanstack/react-table": "^8.21.3",
+    "canvas-confetti": "^1.9.4",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "embla-carousel-react": "^8.6.0",

pnpm-lock.yaml

@@ -29,6 +29,9 @@ importers:
       '@tanstack/react-table':
         specifier: ^8.21.3
         version: 8.21.3(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
+      canvas-confetti:
+        specifier: ^1.9.4
+        version: 1.9.4
       class-variance-authority:
         specifier: ^0.7.1
         version: 0.7.1
@@ -1544,6 +1547,9 @@ packages:
   caniuse-lite@1.0.30001762:
     resolution: {integrity: sha512-PxZwGNvH7Ak8WX5iXzoK1KPZttBXNPuaOvI2ZYU7NrlM+d9Ov+TUvlLOBNGzVXAntMSMMlJPd+jY6ovrVjSmUw==}
 
+  canvas-confetti@1.9.4:
+    resolution: {integrity: sha512-yxQbJkAVrFXWNbTUjPqjF7G+g6pDotOUHGbkZq2NELZUMDpiJ85rIEazVb8GTaAptNW2miJAXbs1BtioA251Pw==}
+
   chalk@4.1.2:
     resolution: {integrity: sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==}
     engines: {node: '>=10'}
@@ -3706,6 +3712,8 @@ snapshots:
 
   caniuse-lite@1.0.30001762: {}
 
+  canvas-confetti@1.9.4: {}
+
   chalk@4.1.2:
     dependencies:
       ansi-styles: 4.3.0

src/components/Calculator.tsx

@@ -0,0 +1,250 @@
+import { useEffect, useRef, useState, useCallback } from "react";
+import { createPortal } from "react-dom";
+import { X, Calculator, Maximize2, Minimize2 } from "lucide-react";
+
+// ─── GeoGebra type shim ───────────────────────────────────────────────────────
+declare global {
+  interface Window {
+    GGBApplet: new (
+      params: Record<string, unknown>,
+      defer?: boolean,
+    ) => {
+      inject: (containerId: string) => void;
+    };
+    ggbApplet?: {
+      reset: () => void;
+      setXML: (xml: string) => void;
+    };
+  }
+}
+
+// ─── Hook: load GeoGebra script once ─────────────────────────────────────────
+const GEOGEBRA_SCRIPT = "https://www.geogebra.org/apps/deployggb.js";
+
+const useGeoGebraScript = () => {
+  const [ready, setReady] = useState(false);
+
+  useEffect(() => {
+    if (document.querySelector(`script[src="${GEOGEBRA_SCRIPT}"]`)) {
+      if (window.GGBApplet) setReady(true);
+      return;
+    }
+    const script = document.createElement("script");
+    script.src = GEOGEBRA_SCRIPT;
+    script.async = true;
+    script.onload = () => setReady(true);
+    document.head.appendChild(script);
+  }, []);
+
+  return ready;
+};
+
+// ─── GeoGebra Calculator ──────────────────────────────────────────────────────
+const GeoGebraCalculator = ({ containerId }: { containerId: string }) => {
+  const scriptReady = useGeoGebraScript();
+  const injected = useRef(false);
+  const wrapperRef = useRef<HTMLDivElement>(null);
+  const [dims, setDims] = useState<{ w: number; h: number } | null>(null);
+
+  // Measure the wrapper first — GeoGebra needs explicit px dimensions
+  useEffect(() => {
+    const el = wrapperRef.current;
+    if (!el) return;
+    const ro = new ResizeObserver((entries) => {
+      for (const entry of entries) {
+        const { width, height } = entry.contentRect;
+        if (width > 0 && height > 0) {
+          setDims({ w: Math.floor(width), h: Math.floor(height) });
+        }
+      }
+    });
+    ro.observe(el);
+    return () => ro.disconnect();
+  }, []);
+
+  useEffect(() => {
+    if (!scriptReady || !dims || injected.current) return;
+    injected.current = true;
+
+    const params = {
+      appName: "graphing",
+      width: dims.w,
+      height: dims.h,
+      showToolBar: true,
+      showAlgebraInput: true,
+      showMenuBar: false,
+      enableLabelDrags: true,
+      enableShiftDragZoom: true,
+      enableRightClick: true,
+      showZoomButtons: true,
+      capturingThreshold: null,
+      showFullscreenButton: false,
+
+      scale: 1,
+      disableAutoScale: false,
+      allowUpscale: false,
+      clickToLoad: false,
+      appletOnLoad: () => {},
+      useBrowserForJS: false,
+      showLogging: false,
+      errorDialogsActive: true,
+      showTutorialLink: false,
+      showSuggestionButtons: false,
+      language: "en",
+      id: "ggbApplet",
+    };
+
+    try {
+      const applet = new window.GGBApplet(params, true);
+      applet.inject(containerId);
+    } catch (e) {
+      console.error("GeoGebra init error:", e);
+    }
+  }, [scriptReady, dims, containerId]);
+
+  return (
+    <div ref={wrapperRef} className="w-full h-full">
+      {!dims && (
+        <div className="w-full h-full flex items-center justify-center text-gray-400 text-sm font-satoshi gap-2">
+          <svg className="animate-spin w-4 h-4" viewBox="0 0 24 24" fill="none">
+            <circle
+              className="opacity-25"
+              cx="12"
+              cy="12"
+              r="10"
+              stroke="currentColor"
+              strokeWidth="4"
+            />
+            <path
+              className="opacity-75"
+              fill="currentColor"
+              d="M4 12a8 8 0 018-8v4a4 4 0 00-4 4H4z"
+            />
+          </svg>
+          Loading calculator...
+        </div>
+      )}
+      <div id={containerId} style={{ width: dims?.w, height: dims?.h }} />
+    </div>
+  );
+};
+
+// ─── Modal ────────────────────────────────────────────────────────────────────
+interface GraphCalculatorModalProps {
+  open: boolean;
+  onClose: () => void;
+}
+
+const GraphCalculatorModal = ({ open, onClose }: GraphCalculatorModalProps) => {
+  const [fullscreen, setFullscreen] = useState(false);
+  const containerId = "geogebra-container";
+
+  // Trap focus & keyboard dismiss
+  useEffect(() => {
+    if (!open) return;
+    const onKey = (e: KeyboardEvent) => {
+      if (e.key === "Escape") onClose();
+    };
+    window.addEventListener("keydown", onKey);
+    return () => window.removeEventListener("keydown", onKey);
+  }, [open, onClose]);
+
+  // Prevent body scroll while open
+  useEffect(() => {
+    document.body.style.overflow = open ? "hidden" : "";
+    return () => {
+      document.body.style.overflow = "";
+    };
+  }, [open]);
+
+  if (!open) return null;
+
+  return createPortal(
+    <div
+      className="fixed inset-0 z-50 flex items-center justify-center"
+      role="dialog"
+      aria-modal="true"
+      aria-label="Graph Calculator"
+    >
+      {/* Backdrop */}
+      <div
+        className="absolute inset-0 bg-black/40 backdrop-blur-sm"
+        onClick={onClose}
+      />
+
+      {/* Panel */}
+      <div
+        className={`
+          relative z-10 flex flex-col bg-white rounded-2xl shadow-2xl overflow-hidden
+          transition-all duration-300
+          ${
+            fullscreen
+              ? "w-screen h-screen rounded-none"
+              : "w-[95vw] h-[90vh] max-w-5xl"
+          }
+        `}
+        onClick={(e) => e.stopPropagation()}
+      >
+        {/* Header */}
+        <div className="flex items-center justify-between px-4 py-3 border-b border-gray-100 bg-white shrink-0">
+          <div className="flex items-center gap-2.5">
+            <div className="p-1.5 rounded-lg bg-purple-50 border border-purple-100">
+              <Calculator size={16} className="text-purple-500" />
+            </div>
+            <span className="font-satoshi-bold text-gray-800 text-sm">
+              Graph Calculator
+            </span>
+            <span className="text-[10px] font-satoshi text-gray-400 bg-gray-100 px-2 py-0.5 rounded-full">
+              Powered by GeoGebra
+            </span>
+          </div>
+
+          <div className="flex items-center gap-1.5">
+            <button
+              onClick={() => setFullscreen((f) => !f)}
+              className="w-8 h-8 flex items-center justify-center rounded-lg text-gray-400 hover:text-gray-700 hover:bg-gray-100 transition"
+              title={fullscreen ? "Exit fullscreen" : "Fullscreen"}
+            >
+              {fullscreen ? <Minimize2 size={15} /> : <Maximize2 size={15} />}
+            </button>
+            <button
+              onClick={onClose}
+              className="w-8 h-8 flex items-center justify-center rounded-lg text-gray-400 hover:text-red-500 hover:bg-red-50 transition"
+              title="Close"
+            >
+              <X size={16} />
+            </button>
+          </div>
+        </div>
+
+        {/* GeoGebra canvas area */}
+        <div className="flex-1 overflow-hidden">
+          <GeoGebraCalculator containerId={containerId} />
+        </div>
+      </div>
+    </div>,
+    document.body,
+  );
+};
+
+// ─── Trigger button + modal — drop this wherever you need it ──────────────────
+export const GraphCalculatorButton = () => {
+  const [open, setOpen] = useState(false);
+
+  return (
+    <>
+      <button
+        onClick={() => setOpen(true)}
+        className="inline-flex items-center gap-2 px-4 py-2.5 rounded-full font-satoshi-medium text-sm"
+      >
+        <Calculator size={16} />
+        Calculator
+      </button>
+
+      <GraphCalculatorModal open={open} onClose={() => setOpen(false)} />
+    </>
+  );
+};
+
+// ─── Standalone modal export if you need to control it externally ─────────────
+export { GraphCalculatorModal };

src/components/ChoiceCard.tsx

@@ -16,7 +16,7 @@ export const ChoiceCard = ({
   <button
     onClick={onClick}
     className={`rounded-2xl border p-4 text-left transition flex flex-col
-      ${selected ? "border-purple-600 bg-purple-50" : "hover:border-gray-300"}`}
+      ${selected ? "border-indigo-600 bg-indigo-50" : "hover:border-gray-300"}`}
   >
     <div className="flex justify-between">
       <span className="font-satoshi-bold text-lg">{label}</span>

src/components/GraphPlotter.tsx

@@ -0,0 +1,634 @@
+import { useRef, useEffect, useState, useCallback, useMemo } from "react";
+
+// ─── Types ────────────────────────────────────────────────────────────────────
+
+export interface Equation {
+  /** A JS math expression in terms of x. e.g. "Math.sin(x)", "x**2 - 3" */
+  fn: string;
+  /** Hex or CSS color string */
+  color?: string;
+  /** Display label e.g. "y = x²" */
+  label?: string;
+}
+
+interface GraphPlotterProps {
+  equations: Equation[];
+  width?: number | string;
+  height?: number | string;
+}
+
+interface Intersection {
+  x: number;
+  y: number;
+  eqA: number;
+  eqB: number;
+}
+
+interface TooltipState {
+  screenX: number;
+  screenY: number;
+  mathX: number;
+  mathY: number;
+  eqA: number;
+  eqB: number;
+}
+
+// ─── Palette ──────────────────────────────────────────────────────────────────
+
+const DEFAULT_COLORS = [
+  "#e05263", // crimson-rose
+  "#3b82f6", // blue
+  "#10b981", // emerald
+  "#f59e0b", // amber
+  "#a855f7", // violet
+  "#06b6d4", // cyan
+  "#f97316", // orange
+];
+
+// ─── Safe function evaluator ──────────────────────────────────────────────────
+
+const buildFn = (expr: string): ((x: number) => number) => {
+  try {
+    // eslint-disable-next-line no-new-func
+    return new Function(
+      "x",
+      `"use strict"; try { return ${expr}; } catch(e) { return NaN; }`,
+    ) as (x: number) => number;
+  } catch {
+    return () => NaN;
+  }
+};
+
+// ─── Intersection finder (bisection on sign changes) ─────────────────────────
+
+const findIntersections = (
+  fns: Array<(x: number) => number>,
+  xMin: number,
+  xMax: number,
+  steps = 800,
+): Intersection[] => {
+  const results: Intersection[] = [];
+  const dx = (xMax - xMin) / steps;
+
+  for (let a = 0; a < fns.length; a++) {
+    for (let b = a + 1; b < fns.length; b++) {
+      const diff = (x: number) => fns[a](x) - fns[b](x);
+      let prev = diff(xMin);
+
+      for (let i = 1; i <= steps; i++) {
+        const x1 = xMin + i * dx;
+        const cur = diff(x1);
+
+        if (isFinite(prev) && isFinite(cur) && prev * cur < 0) {
+          // Bisect
+          let lo = x1 - dx,
+            hi = x1;
+          for (let k = 0; k < 42; k++) {
+            const mid = (lo + hi) / 2;
+            const m = diff(mid);
+            if (Math.abs(m) < 1e-10) {
+              lo = hi = mid;
+              break;
+            }
+            if (m * diff(lo) < 0) hi = mid;
+            else lo = mid;
+          }
+          const rx = (lo + hi) / 2;
+          const ry = fns[a](rx);
+          if (isFinite(rx) && isFinite(ry)) {
+            // Dedupe
+            const dupe = results.some(
+              (p) => p.eqA === a && p.eqB === b && Math.abs(p.x - rx) < 1e-4,
+            );
+            if (!dupe) results.push({ x: rx, y: ry, eqA: a, eqB: b });
+          }
+        }
+        prev = cur;
+      }
+    }
+  }
+  return results;
+};
+
+// ─── Main Component ───────────────────────────────────────────────────────────
+
+export const GraphPlotter = ({
+  equations,
+  width = "100%",
+  height = 480,
+}: GraphPlotterProps) => {
+  const canvasRef = useRef<HTMLCanvasElement>(null);
+  const containerRef = useRef<HTMLDivElement>(null);
+
+  // Viewport state: origin in math coords + pixels-per-unit
+  const [viewport, setViewport] = useState({ cx: 0, cy: 0, scale: 60 });
+  const [canvasSize, setCanvasSize] = useState({ w: 600, h: 480 });
+  const [tooltip, setTooltip] = useState<TooltipState | null>(null);
+  const [activeIntersections, setActiveIntersections] = useState<
+    Intersection[]
+  >([]);
+
+  // Pan state
+  const isPanning = useRef(false);
+  const lastPointer = useRef({ x: 0, y: 0 });
+  const lastPinchDist = useRef<number | null>(null);
+
+  // Build compiled functions
+  const compiledFns = useMemo(
+    () => equations.map((eq) => buildFn(eq.fn)),
+    [equations],
+  );
+
+  // Math → screen
+  const toScreen = useCallback(
+    (mx: number, my: number, vp = viewport, cs = canvasSize) => ({
+      sx: cs.w / 2 + (mx - vp.cx) * vp.scale,
+      sy: cs.h / 2 - (my - vp.cy) * vp.scale,
+    }),
+    [viewport, canvasSize],
+  );
+
+  // Screen → math
+  const toMath = useCallback(
+    (sx: number, sy: number, vp = viewport, cs = canvasSize) => ({
+      mx: vp.cx + (sx - cs.w / 2) / vp.scale,
+      my: vp.cy - (sy - cs.h / 2) / vp.scale,
+    }),
+    [viewport, canvasSize],
+  );
+
+  // Resize observer
+  useEffect(() => {
+    const el = containerRef.current;
+    if (!el) return;
+    const ro = new ResizeObserver((entries) => {
+      for (const e of entries) {
+        const { width: w, height: h } = e.contentRect;
+        setCanvasSize({ w: Math.floor(w), h: Math.floor(h) });
+      }
+    });
+    ro.observe(el);
+    return () => ro.disconnect();
+  }, []);
+
+  // Compute intersections when fns or viewport changes
+  useEffect(() => {
+    if (compiledFns.length < 2) {
+      setActiveIntersections([]);
+      return;
+    }
+    const xMin = viewport.cx - canvasSize.w / (2 * viewport.scale);
+    const xMax = viewport.cx + canvasSize.w / (2 * viewport.scale);
+    const its = findIntersections(compiledFns, xMin, xMax);
+    setActiveIntersections(its);
+  }, [compiledFns, viewport, canvasSize]);
+
+  // ── Draw ──────────────────────────────────────────────────────────────────
+
+  useEffect(() => {
+    const canvas = canvasRef.current;
+    if (!canvas) return;
+    const ctx = canvas.getContext("2d");
+    if (!ctx) return;
+
+    const { w, h } = canvasSize;
+    canvas.width = w * devicePixelRatio;
+    canvas.height = h * devicePixelRatio;
+    canvas.style.width = `${w}px`;
+    canvas.style.height = `${h}px`;
+    ctx.scale(devicePixelRatio, devicePixelRatio);
+
+    const vp = viewport;
+    const { sx: ox, sy: oy } = toScreen(0, 0, vp, canvasSize);
+
+    // Background
+    ctx.fillStyle = "#fafaf9";
+    ctx.fillRect(0, 0, w, h);
+
+    // Grid
+    const drawGrid = (
+      unit: number,
+      alpha: number,
+      lineWidth: number,
+      textSize?: number,
+    ) => {
+      ctx.strokeStyle = `rgba(180,180,175,${alpha})`;
+      ctx.lineWidth = lineWidth;
+      ctx.beginPath();
+
+      const xStart = Math.floor((0 - ox) / (unit * vp.scale)) - 1;
+      const xEnd = Math.ceil((w - ox) / (unit * vp.scale)) + 1;
+      for (let i = xStart; i <= xEnd; i++) {
+        const sx = ox + i * unit * vp.scale;
+        ctx.moveTo(sx, 0);
+        ctx.lineTo(sx, h);
+      }
+
+      const yStart = Math.floor((oy - h) / (unit * vp.scale)) - 1;
+      const yEnd = Math.ceil(oy / (unit * vp.scale)) + 1;
+      for (let j = yStart; j <= yEnd; j++) {
+        const sy = oy - j * unit * vp.scale;
+        ctx.moveTo(0, sy);
+        ctx.lineTo(w, sy);
+      }
+      ctx.stroke();
+
+      // Labels
+      if (textSize) {
+        ctx.fillStyle = "#a8a29e";
+        ctx.font = `${textSize}px ui-monospace, monospace`;
+        ctx.textAlign = "center";
+        ctx.textBaseline = "top";
+        for (let i = xStart; i <= xEnd; i++) {
+          if (i === 0) continue;
+          const sx = ox + i * unit * vp.scale;
+          const val = i * unit;
+          const label = Number.isInteger(val) ? val.toString() : val.toFixed(1);
+          ctx.fillText(label, sx, oy + 4);
+        }
+        ctx.textAlign = "right";
+        ctx.textBaseline = "middle";
+        for (let j = yStart; j <= yEnd; j++) {
+          if (j === 0) continue;
+          const sy = oy - j * unit * vp.scale;
+          const val = j * unit;
+          const label = Number.isInteger(val) ? val.toString() : val.toFixed(1);
+          ctx.fillText(label, ox - 6, sy);
+        }
+      }
+    };
+
+    // Adaptive grid unit
+    const rawUnit = 1;
+    const targetPixels = 50;
+    const exp = Math.floor(Math.log10(targetPixels / vp.scale));
+    const unit = rawUnit * Math.pow(10, exp);
+    const subUnit = unit / 5;
+
+    drawGrid(subUnit, 0.35, 0.5);
+    drawGrid(unit, 0.7, 0.8, 10);
+
+    // Axes
+    ctx.strokeStyle = "#57534e";
+    ctx.lineWidth = 1.5;
+    ctx.beginPath();
+    ctx.moveTo(0, oy);
+    ctx.lineTo(w, oy);
+    ctx.moveTo(ox, 0);
+    ctx.lineTo(ox, h);
+    ctx.stroke();
+
+    // Arrow heads
+    const arrow = (x: number, y: number, dir: "r" | "u") => {
+      ctx.fillStyle = "#57534e";
+      ctx.beginPath();
+      if (dir === "r") {
+        ctx.moveTo(x, y);
+        ctx.lineTo(x - 8, y - 4);
+        ctx.lineTo(x - 8, y + 4);
+      } else {
+        ctx.moveTo(x, y);
+        ctx.lineTo(x - 4, y + 8);
+        ctx.lineTo(x + 4, y + 8);
+      }
+      ctx.closePath();
+      ctx.fill();
+    };
+    arrow(w, oy, "r");
+    arrow(ox, 0, "u");
+
+    // Origin label
+    ctx.fillStyle = "#a8a29e";
+    ctx.font = "10px ui-monospace, monospace";
+    ctx.textAlign = "right";
+    ctx.textBaseline = "top";
+    ctx.fillText("0", ox - 5, oy + 4);
+
+    // ── Plot each equation ────────────────────────────────────────────────────
+
+    const xMin = vp.cx - w / (2 * vp.scale);
+    const xMax = vp.cx + w / (2 * vp.scale);
+    const steps = w * 2;
+    const dx = (xMax - xMin) / steps;
+
+    equations.forEach((eq, idx) => {
+      const fn = compiledFns[idx];
+      const color = eq.color ?? DEFAULT_COLORS[idx % DEFAULT_COLORS.length];
+
+      ctx.strokeStyle = color;
+      ctx.lineWidth = 2.5;
+      ctx.lineJoin = "round";
+      ctx.lineCap = "round";
+      ctx.setLineDash([]);
+      ctx.beginPath();
+
+      let penDown = false;
+      let prevY = NaN;
+
+      for (let i = 0; i <= steps; i++) {
+        const mx = xMin + i * dx;
+        const my = fn(mx);
+
+        if (!isFinite(my)) {
+          penDown = false;
+          prevY = NaN;
+          continue;
+        }
+
+        // Break line on discontinuities (asymptotes)
+        if (Math.abs(my - prevY) > (h / vp.scale) * 2) {
+          penDown = false;
+        }
+
+        const { sx, sy } = toScreen(mx, my, vp, canvasSize);
+        if (!penDown) {
+          ctx.moveTo(sx, sy);
+          penDown = true;
+        } else {
+          ctx.lineTo(sx, sy);
+        }
+        prevY = my;
+      }
+      ctx.stroke();
+    });
+
+    // ── Intersection dots ─────────────────────────────────────────────────────
+
+    activeIntersections.forEach((pt) => {
+      const { sx, sy } = toScreen(pt.x, pt.y, vp, canvasSize);
+      if (sx < 0 || sx > w || sy < 0 || sy > h) return;
+
+      // Outer glow ring
+      ctx.beginPath();
+      ctx.arc(sx, sy, 9, 0, Math.PI * 2);
+      ctx.fillStyle = "rgba(255,255,255,0.8)";
+      ctx.fill();
+
+      // Dot
+      ctx.beginPath();
+      ctx.arc(sx, sy, 5, 0, Math.PI * 2);
+      ctx.fillStyle = "#1c1917";
+      ctx.fill();
+
+      ctx.beginPath();
+      ctx.arc(sx, sy, 3, 0, Math.PI * 2);
+      ctx.fillStyle = "#fafaf9";
+      ctx.fill();
+    });
+  }, [
+    viewport,
+    canvasSize,
+    equations,
+    compiledFns,
+    activeIntersections,
+    toScreen,
+  ]);
+
+  // ── Event handlers ────────────────────────────────────────────────────────
+
+  const zoom = useCallback(
+    (factor: number, pivotSx: number, pivotSy: number) => {
+      setViewport((vp) => {
+        const { mx, my } = toMath(pivotSx, pivotSy, vp, canvasSize);
+        const newScale = Math.max(5, Math.min(2000, vp.scale * factor));
+        return {
+          scale: newScale,
+          cx: mx - (pivotSx - canvasSize.w / 2) / newScale,
+          cy: my + (pivotSy - canvasSize.h / 2) / newScale,
+        };
+      });
+    },
+    [toMath, canvasSize],
+  );
+
+  const onWheel = useCallback(
+    (e: React.WheelEvent) => {
+      e.preventDefault();
+      const rect = canvasRef.current!.getBoundingClientRect();
+      const sx = e.clientX - rect.left;
+      const sy = e.clientY - rect.top;
+      const factor = e.deltaY < 0 ? 1.12 : 1 / 1.12;
+      zoom(factor, sx, sy);
+    },
+    [zoom],
+  );
+
+  const onPointerDown = useCallback((e: React.PointerEvent) => {
+    isPanning.current = true;
+    lastPointer.current = { x: e.clientX, y: e.clientY };
+    (e.target as HTMLElement).setPointerCapture(e.pointerId);
+  }, []);
+
+  const onPointerMove = useCallback((e: React.PointerEvent) => {
+    if (!isPanning.current) return;
+    const dx = e.clientX - lastPointer.current.x;
+    const dy = e.clientY - lastPointer.current.y;
+    lastPointer.current = { x: e.clientX, y: e.clientY };
+    setViewport((vp) => ({
+      ...vp,
+      cx: vp.cx - dx / vp.scale,
+      cy: vp.cy + dy / vp.scale,
+    }));
+  }, []);
+
+  const onPointerUp = useCallback((e: React.PointerEvent) => {
+    isPanning.current = false;
+  }, []);
+
+  // Touch pinch-to-zoom
+  const onTouchStart = useCallback((e: React.TouchEvent) => {
+    if (e.touches.length === 2) {
+      const dx = e.touches[0].clientX - e.touches[1].clientX;
+      const dy = e.touches[0].clientY - e.touches[1].clientY;
+      lastPinchDist.current = Math.hypot(dx, dy);
+    }
+  }, []);
+
+  const onTouchMove = useCallback(
+    (e: React.TouchEvent) => {
+      if (e.touches.length === 2 && lastPinchDist.current !== null) {
+        e.preventDefault();
+        const dx = e.touches[0].clientX - e.touches[1].clientX;
+        const dy = e.touches[0].clientY - e.touches[1].clientY;
+        const dist = Math.hypot(dx, dy);
+        const factor = dist / lastPinchDist.current;
+        lastPinchDist.current = dist;
+
+        const rect = canvasRef.current!.getBoundingClientRect();
+        const pivotX =
+          (e.touches[0].clientX + e.touches[1].clientX) / 2 - rect.left;
+        const pivotY =
+          (e.touches[0].clientY + e.touches[1].clientY) / 2 - rect.top;
+        zoom(factor, pivotX, pivotY);
+      }
+    },
+    [zoom],
+  );
+
+  // Tap to find nearest intersection
+  const onCanvasClick = useCallback(
+    (e: React.MouseEvent) => {
+      const rect = canvasRef.current!.getBoundingClientRect();
+      const sx = e.clientX - rect.left;
+      const sy = e.clientY - rect.top;
+      const { mx, my } = toMath(sx, sy, viewport, canvasSize);
+
+      // Find closest intersection within 20px
+      let best: Intersection | null = null;
+      let bestDist = Infinity;
+
+      for (const pt of activeIntersections) {
+        const { sx: px, sy: py } = toScreen(pt.x, pt.y, viewport, canvasSize);
+        const d = Math.hypot(px - sx, py - sy);
+        if (d < 24 && d < bestDist) {
+          best = pt;
+          bestDist = d;
+        }
+      }
+
+      if (best) {
+        const { sx: px, sy: py } = toScreen(
+          best.x,
+          best.y,
+          viewport,
+          canvasSize,
+        );
+        setTooltip({
+          screenX: px,
+          screenY: py,
+          mathX: best.x,
+          mathY: best.y,
+          eqA: best.eqA,
+          eqB: best.eqB,
+        });
+      } else {
+        setTooltip(null);
+      }
+    },
+    [activeIntersections, toMath, toScreen, viewport, canvasSize],
+  );
+
+  const fmt = (n: number) => {
+    if (Math.abs(n) < 1e-9) return "0";
+    if (Math.abs(n) >= 1e4 || (Math.abs(n) < 1e-3 && n !== 0))
+      return n.toExponential(3);
+    return parseFloat(n.toFixed(4)).toString();
+  };
+
+  const resetView = () => setViewport({ cx: 0, cy: 0, scale: 60 });
+
+  // ── Render ─────────────────────────────────────────────────────────────────
+
+  return (
+    <div
+      ref={containerRef}
+      style={{ width, height, position: "relative", userSelect: "none" }}
+      className="rounded-2xl overflow-hidden border border-stone-200 shadow-md bg-stone-50 font-mono pt-32"
+    >
+      <canvas
+        ref={canvasRef}
+        style={{ display: "block", cursor: "crosshair", touchAction: "none" }}
+        onWheel={onWheel}
+        onPointerDown={onPointerDown}
+        onPointerMove={onPointerMove}
+        onPointerUp={onPointerUp}
+        onPointerCancel={onPointerUp}
+        onTouchStart={onTouchStart}
+        onTouchMove={onTouchMove}
+        onClick={onCanvasClick}
+      />
+
+      {/* Equation legend */}
+      <div className="absolute top-3 left-3 flex flex-col gap-1.5">
+        {equations.map((eq, idx) => (
+          <div
+            key={idx}
+            className="flex items-center gap-2 px-2.5 py-1 rounded-lg bg-white/80 backdrop-blur-sm border border-stone-200 shadow-sm"
+          >
+            <span
+              className="block w-3 h-3 rounded-full shrink-0"
+              style={{
+                backgroundColor:
+                  eq.color ?? DEFAULT_COLORS[idx % DEFAULT_COLORS.length],
+              }}
+            />
+            <span className="text-[11px] text-stone-600 leading-none">
+              {eq.label ?? `y = ${eq.fn}`}
+            </span>
+          </div>
+        ))}
+      </div>
+
+      {/* Controls */}
+      <div className="absolute top-3 right-3 flex flex-col gap-1.5">
+        <button
+          onClick={() => zoom(1.25, canvasSize.w / 2, canvasSize.h / 2)}
+          className="w-8 h-8 rounded-lg bg-white/90 border border-stone-200 shadow-sm text-stone-600 hover:bg-stone-100 transition text-lg flex items-center justify-center"
+          title="Zoom in"
+        >
+          +
+        </button>
+        <button
+          onClick={() => zoom(1 / 1.25, canvasSize.w / 2, canvasSize.h / 2)}
+          className="w-8 h-8 rounded-lg bg-white/90 border border-stone-200 shadow-sm text-stone-600 hover:bg-stone-100 transition text-lg flex items-center justify-center"
+          title="Zoom out"
+        >
+          −
+        </button>
+        <button
+          onClick={resetView}
+          className="w-8 h-8 rounded-lg bg-white/90 border border-stone-200 shadow-sm text-stone-500 hover:bg-stone-100 transition text-[10px] flex items-center justify-center font-sans"
+          title="Reset view"
+        >
+          ⌂
+        </button>
+      </div>
+
+      {/* Intersection tooltip */}
+      {tooltip && (
+        <div
+          className="absolute z-10 pointer-events-none"
+          style={{
+            left: tooltip.screenX,
+            top: tooltip.screenY,
+            transform: "translate(-50%, -130%)",
+          }}
+        >
+          <div className="bg-stone-900 text-stone-100 text-[11px] px-3 py-2 rounded-xl shadow-xl border border-stone-700 whitespace-nowrap">
+            <div className="font-semibold mb-0.5 text-stone-300 text-[10px] tracking-wide uppercase">
+              Intersection
+            </div>
+            <div>
+              x ={" "}
+              <span className="text-amber-300 font-bold">
+                {fmt(tooltip.mathX)}
+              </span>
+            </div>
+            <div>
+              y ={" "}
+              <span className="text-amber-300 font-bold">
+                {fmt(tooltip.mathY)}
+              </span>
+            </div>
+            <div className="text-stone-500 text-[9px] mt-1">
+              eq {tooltip.eqA + 1} ∩ eq {tooltip.eqB + 1}
+            </div>
+          </div>
+          {/* Arrow */}
+          <div className="flex justify-center">
+            <div className="w-2 h-2 bg-stone-900 rotate-45 -mt-1 border-r border-b border-stone-700" />
+          </div>
+        </div>
+      )}
+
+      {/* Dismiss tooltip on background click hint */}
+      {tooltip && (
+        <button
+          className="absolute inset-0 w-full h-full bg-transparent"
+          onClick={() => setTooltip(null)}
+          style={{ zIndex: 5 }}
+        />
+      )}
+    </div>
+  );
+};

src/components/PredictedScoreCard.tsx

@@ -0,0 +1,305 @@
+import { useEffect, useState } from "react";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "../components/ui/card";
+import { api } from "../utils/api";
+import { useAuthToken } from "../hooks/useAuthToken";
+import {
+  TrendingUp,
+  BookOpen,
+  Calculator,
+  Loader2,
+  ChevronDown,
+  ChevronUp,
+} from "lucide-react";
+
+// ─── Types ────────────────────────────────────────────────────────────────────
+
+interface SectionPrediction {
+  score: number;
+  range_min: number;
+  range_max: number;
+  confidence: string;
+}
+
+interface PredictedScoreResponse {
+  total_score: number;
+  math_prediction: SectionPrediction;
+  rw_prediction: SectionPrediction;
+}
+
+// ─── Helpers ──────────────────────────────────────────────────────────────────
+
+const confidenceConfig: Record<
+  string,
+  { label: string; color: string; bg: string; dot: string }
+> = {
+  high: {
+    label: "High confidence",
+    color: "text-emerald-700",
+    bg: "bg-emerald-50 border-emerald-200",
+    dot: "bg-emerald-500",
+  },
+  medium: {
+    label: "Medium confidence",
+    color: "text-amber-700",
+    bg: "bg-amber-50 border-amber-200",
+    dot: "bg-amber-400",
+  },
+  low: {
+    label: "Low confidence",
+    color: "text-rose-700",
+    bg: "bg-rose-50 border-rose-200",
+    dot: "bg-rose-400",
+  },
+};
+
+const getConfidenceStyle = (confidence: string) =>
+  confidenceConfig[confidence.toLowerCase()] ?? {
+    label: confidence,
+    color: "text-gray-600",
+    bg: "bg-gray-50 border-gray-200",
+    dot: "bg-gray-400",
+  };
+
+const useCountUp = (target: number, duration = 900) => {
+  const [value, setValue] = useState(0);
+  useEffect(() => {
+    if (!target) return;
+    let start: number | null = null;
+    const step = (ts: number) => {
+      if (!start) start = ts;
+      const progress = Math.min((ts - start) / duration, 1);
+      const eased = 1 - Math.pow(1 - progress, 3);
+      setValue(Math.floor(eased * target));
+      if (progress < 1) requestAnimationFrame(step);
+    };
+    requestAnimationFrame(step);
+  }, [target, duration]);
+  return value;
+};
+
+// ─── Expanded section detail ──────────────────────────────────────────────────
+
+const SectionDetail = ({
+  label,
+  icon: Icon,
+  prediction,
+  accentClass,
+}: {
+  label: string;
+  icon: React.ElementType;
+  prediction: SectionPrediction;
+  accentClass: string;
+}) => {
+  const conf = getConfidenceStyle(prediction.confidence);
+  return (
+    <div className="flex flex-col gap-2 rounded-2xl border border-gray-100 bg-gray-50 px-4 py-4">
+      <div className="flex items-center justify-between">
+        <div className="flex items-center gap-2">
+          <div className={`p-1.5 rounded-lg ${accentClass}`}>
+            <Icon size={14} className="text-white" />
+          </div>
+          <span className="font-satoshi-medium text-sm text-gray-700">
+            {label}
+          </span>
+        </div>
+        <span
+          className={`flex items-center gap-1.5 text-xs px-2 py-0.5 rounded-full border font-satoshi ${conf.bg} ${conf.color}`}
+        >
+          <span className={`w-1.5 h-1.5 rounded-full ${conf.dot}`} />
+          {conf.label}
+        </span>
+      </div>
+
+      <div className="flex items-end justify-between mt-1">
+        <span className="font-satoshi-bold text-2xl text-gray-900">
+          {prediction.score}
+        </span>
+        <span className="font-satoshi text-xs text-gray-400 mb-1">
+          Range:{" "}
+          <span className="text-gray-600 font-satoshi-medium">
+            {prediction.range_min}–{prediction.range_max}
+          </span>
+        </span>
+      </div>
+
+      {/* Range bar */}
+      <div className="relative h-1.5 rounded-full bg-gray-200 mt-1">
+        <div
+          className={`absolute h-1.5 rounded-full ${accentClass} opacity-60`}
+          style={{
+            left: `${((prediction.range_min - 200) / (800 - 200)) * 100}%`,
+            right: `${100 - ((prediction.range_max - 200) / (800 - 200)) * 100}%`,
+          }}
+        />
+        <div
+          className={`absolute w-2.5 h-2.5 rounded-full border-2 border-white ${accentClass} -top-0.5 shadow-sm`}
+          style={{
+            left: `calc(${((prediction.score - 200) / (800 - 200)) * 100}% - 5px)`,
+          }}
+        />
+      </div>
+      <div className="flex justify-between text-[10px] text-gray-300 font-satoshi mt-0.5">
+        <span>200</span>
+        <span>800</span>
+      </div>
+    </div>
+  );
+};
+
+// ─── Main component ───────────────────────────────────────────────────────────
+
+export const PredictedScoreCard = () => {
+  const token = useAuthToken();
+  const [data, setData] = useState<PredictedScoreResponse | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+  const [expanded, setExpanded] = useState(false);
+
+  useEffect(() => {
+    if (!token) return;
+    (async () => {
+      try {
+        setLoading(true);
+        const result = await api.fetchPredictedScore(token);
+        setData(result);
+      } catch (err) {
+        setError("Couldn't load your predicted score.");
+        console.error(err);
+      } finally {
+        setLoading(false);
+      }
+    })();
+  }, [token]);
+
+  const animatedTotal = useCountUp(data?.total_score ?? 0, 1000);
+
+  return (
+    <Card className="w-full border border-gray-200 shadow-sm overflow-hidden">
+      <CardHeader>
+        <div className="flex items-center justify-between">
+          <div>
+            <CardTitle className="font-satoshi-bold text-lg text-gray-900">
+              Predicted SAT Score
+            </CardTitle>
+            <CardDescription className="font-satoshi text-sm text-gray-400 mt-0.5">
+              Based on your practice performance
+            </CardDescription>
+          </div>
+          <div className="p-2 rounded-xl bg-purple-50 border border-purple-100">
+            <TrendingUp size={18} className="text-purple-500" />
+          </div>
+        </div>
+      </CardHeader>
+
+      <CardContent className="space-y-4">
+        {loading && (
+          <div className="flex items-center justify-center py-8">
+            <Loader2 size={26} className="animate-spin text-purple-400" />
+          </div>
+        )}
+
+        {error && !loading && (
+          <p className="font-satoshi text-sm text-rose-500 text-center py-4">
+            {error}
+          </p>
+        )}
+
+        {data && !loading && (
+          <>
+            {/* ── Collapsed view: big numbers only ── */}
+            <div className="flex items-center justify-between">
+              {/* Total */}
+              <div className="flex flex-col">
+                <span className="font-satoshi text-lg text-gray-400 mb-0.5">
+                  Total
+                </span>
+                <span className="font-satoshi-bold text-6xl text-gray-900 leading-none">
+                  {animatedTotal}
+                </span>
+                <span className="font-satoshi text-[18px] text-gray-300 mt-1">
+                  out of 1600
+                </span>
+              </div>
+
+              <div className="h-12 w-px bg-gray-100" />
+
+              {/* Math */}
+              <div className="flex flex-col items-center">
+                <div className="flex items-center gap-1 mb-0.5">
+                  <Calculator size={16} className="text-violet-400" />
+                  <span className="font-satoshi text-sm text-gray-400">
+                    Math
+                  </span>
+                </div>
+                <span className="font-satoshi-bold text-3xl text-gray-900 leading-none">
+                  {data.math_prediction.score}
+                </span>
+                <span className="font-satoshi text-[12px] text-gray-300 mt-1">
+                  out of 800
+                </span>
+              </div>
+
+              <div className="h-12 w-px bg-gray-100" />
+
+              {/* R&W */}
+              <div className="flex flex-col items-center">
+                <div className="flex items-center gap-1 mb-0.5">
+                  <BookOpen size={16} className="text-sky-400" />
+                  <span className="font-satoshi text-sm text-gray-400">
+                    R&W
+                  </span>
+                </div>
+                <span className="font-satoshi-bold text-3xl text-gray-900 leading-none">
+                  {data.rw_prediction.score}
+                </span>
+                <span className="font-satoshi text-[12px] text-gray-300 mt-1">
+                  out of 800
+                </span>
+              </div>
+            </div>
+
+            {/* ── Expand toggle ── */}
+            <button
+              onClick={() => setExpanded((p) => !p)}
+              className="w-full flex items-center justify-center gap-1.5 py-2 text-xs font-satoshi-medium text-gray-400 hover:text-purple-500 transition-colors"
+            >
+              {expanded ? (
+                <>
+                  <ChevronUp size={14} /> Less detail
+                </>
+              ) : (
+                <>
+                  <ChevronDown size={14} /> More detail
+                </>
+              )}
+            </button>
+
+            {/* ── Expanded: range bars + confidence ── */}
+            {expanded && (
+              <div className="space-y-3 pt-1">
+                <SectionDetail
+                  label="Math"
+                  icon={Calculator}
+                  prediction={data.math_prediction}
+                  accentClass="bg-violet-500"
+                />
+                <SectionDetail
+                  label="Reading & Writing"
+                  icon={BookOpen}
+                  prediction={data.rw_prediction}
+                  accentClass="bg-sky-500"
+                />
+              </div>
+            )}
+          </>
+        )}
+      </CardContent>
+    </Card>
+  );
+};

src/pages/student/Home.tsx

@@ -6,7 +6,7 @@ import {
   TabsContent,
 } from "../../components/ui/tabs";
 import { useAuthStore } from "../../stores/authStore";
-import { CheckCircle, Search } from "lucide-react";
+import { CheckCircle, Flame, Search, Zap } from "lucide-react";
 import { api } from "../../utils/api";
 import {
   Card,
@@ -22,10 +22,18 @@ import type { PracticeSheet } from "../../types/sheet";
 import { formatStatus } from "../../lib/utils";
 import { useNavigate } from "react-router-dom";
 import { SearchOverlay } from "../../components/SearchOverlay";
+import { PredictedScoreCard } from "../../components/PredictedScoreCard";
+import {
+  Avatar,
+  AvatarFallback,
+  AvatarImage,
+} from "../../components/ui/avatar";
+import { useExamConfigStore } from "../../stores/useExamConfigStore";
 
 export const Home = () => {
   const user = useAuthStore((state) => state.user);
   const navigate = useNavigate();
+  const userXp = useExamConfigStore.getState().userXp;
 
   const [practiceSheets, setPracticeSheets] = useState<PracticeSheet[]>([]);
   const [notStartedSheets, setNotStartedSheets] = useState<PracticeSheet[]>([]);
@@ -84,10 +92,42 @@ export const Home = () => {
   };
 
   return (
-    <main className="min-h-screen bg-gray-50 space-y-6  mx-auto px-8 sm:px-6 lg:px-90 py-12">
+    <main className="min-h-screen  space-y-6  mx-auto px-8 sm:px-6 lg:px-90 py-12">
-      <h1 className="text-4xl font-satoshi-bold tracking-tight text-gray-800 text-center">
+      <header className="flex items-center gap-3 justify-between">
-        Welcome, {user?.name || "Student"}
+        <div className="flex gap-3">
-      </h1>
+          <Avatar className="w-12 h-12">
+            <AvatarImage src={user?.avatar_url} />
+            <AvatarFallback className="font-satoshi-bold bg-linear-to-br from-indigo-400 to-indigo-500 uppercase text-lg text-white">
+              {user?.name.slice(0, 1)}
+            </AvatarFallback>
+          </Avatar>
+          <div className="flex flex-col">
+            <h1 className="text-xl font-satoshi-bold tracking-tight text-gray-800 text-center">
+              Welcome, {user?.name || "Student"}
+            </h1>
+            <h4 className="text-sm font-satoshi-bold text-indigo-500 ">
+              {user?.role === "STUDENT"
+                ? "Student"
+                : user?.role === "ADMIN"
+                  ? "Admin"
+                  : "Taecher"}
+            </h4>
+          </div>
+        </div>
+        <div className="flex gap-3">
+          <div className="rounded-full w-fit flex items-center gap-2">
+            <Flame size={20} className="text-red-500 fill-amber-200" />
+
+            <span className="font-satoshi-bold text-md">5</span>
+          </div>
+          <div className="rounded-full w-fit flex items-center gap-2">
+            <Zap size={20} className="text-lime-500 fill-lime-200" />
+
+            <span className="font-satoshi-bold text-md">{userXp}</span>
+          </div>
+        </div>
+      </header>
+      <PredictedScoreCard />
       <h1 className="font-satoshi-bold text-2xl tracking-tight">
         What are you looking for?
       </h1>
@@ -111,7 +151,7 @@ export const Home = () => {
           inProgressSheets.map((sheet) => (
             <Card
               key={sheet?.id}
-              className="rounded-4xl border bg-purple-50/70 border-purple-500"
+              className="rounded-4xl border bg-indigo-50/70 border-indigo-500"
             >
               <CardHeader>
                 <CardTitle className="font-satoshi-medium text-xl">
@@ -122,7 +162,7 @@ export const Home = () => {
                 </CardDescription>
               </CardHeader>
               <CardContent className="flex justify-between">
-                <p className="font-satoshi text-sm  border px-2 rounded-full bg-purple-500 text-white py-1">
+                <p className="font-satoshi text-sm  border px-2 rounded-full bg-indigo-500 text-white py-1">
                   {formatStatus(sheet?.user_status)}
                 </p>
                 <Badge
@@ -141,7 +181,7 @@ export const Home = () => {
                 <Button
                   onClick={() => handleStartPracticeSheet(sheet?.id)}
                   variant="outline"
-                  className="font-satoshi rounded-3xl w-full text-lg py-6 bg-linear-to-br from-purple-500 to-purple-600 text-white"
+                  className="font-satoshi rounded-3xl w-full text-lg py-6 bg-linear-to-br from-indigo-500 to-indigo-600 text-white"
                 >
                   Resume
                 </Button>
@@ -161,19 +201,19 @@ export const Home = () => {
           <TabsList className="bg-transparent p-0 w-full">
             <TabsTrigger
               value="all"
-              className="font-satoshi-regular tracking-wide text-md rounded-none border-b-3 data-[state=active]:font-satoshi-medium data-[state=active]:border-b-purple-800 data-[state=active]:text-purple-800"
+              className="font-satoshi-regular tracking-wide text-md rounded-none border-b-3 data-[state=active]:font-satoshi-medium data-[state=active]:border-b-indigo-800 data-[state=active]:text-indigo-800"
             >
               All
             </TabsTrigger>
             <TabsTrigger
               value="NOT_STARTED"
-              className="font-satoshi-regular tracking-wide text-md rounded-none border-b-3 data-[state=active]:border-b-purple-800 data-[state=active]:text-purple-800"
+              className="font-satoshi-regular tracking-wide text-md rounded-none border-b-3 data-[state=active]:border-b-indigo-800 data-[state=active]:text-indigo-800"
             >
               Not Started
             </TabsTrigger>
             <TabsTrigger
               value="COMPLETED"
-              className="font-satoshi-regular tracking-wide text-md rounded-none border-b-3 data-[state=active]:border-b-purple-800 data-[state=active]:text-purple-800"
+              className="font-satoshi-regular tracking-wide text-md rounded-none border-b-3 data-[state=active]:border-b-indigo-800 data-[state=active]:text-indigo-800"
             >
               Completed
             </TabsTrigger>
@@ -211,7 +251,7 @@ export const Home = () => {
                       <Button
                         onClick={() => handleStartPracticeSheet(sheet?.id)}
                         variant="outline"
-                        className="font-satoshi rounded-3xl w-full text-lg py-6 bg-linear-to-br from-purple-500 to-purple-600 text-white"
+                        className="font-satoshi rounded-3xl w-full text-lg py-6 bg-linear-to-br from-indigo-500 to-indigo-600 text-white"
                       >
                         Start
                       </Button>
@@ -256,7 +296,7 @@ export const Home = () => {
                   <CardFooter>
                     <Button
                       variant="outline"
-                      className="font-satoshi w-full text-lg py-6 bg-linear-to-br from-purple-500 to-purple-600 rounded-3xl text-white"
+                      className="font-satoshi w-full text-lg py-6 bg-linear-to-br from-indigo-500 to-indigo-600 rounded-3xl text-white"
                     >
                       Start
                     </Button>
@@ -297,7 +337,7 @@ export const Home = () => {
                     <CardFooter>
                       <Button
                         variant="outline"
-                        className="font-satoshi w-full text-lg py-6 bg-linear-to-br from-purple-500 to-purple-600 rounded-3xl text-white"
+                        className="font-satoshi w-full text-lg py-6 bg-linear-to-br from-indigo-500 to-indigo-600 rounded-3xl text-white"
                       >
                         Start
                       </Button>
@@ -322,29 +362,29 @@ export const Home = () => {
         </h1>
         <section className="space-y-4 ">
           <div className="flex gap-2">
-            <CheckCircle size={24} color="#AD45FF" />
+            <CheckCircle size={24} color="oklch(58.5% 0.233 277.117)" />
             <p className="font-satoshi text-md">
               Practice regularly with official SAT materials
             </p>
           </div>
           <div className="flex items-center gap-2">
-            <CheckCircle size={24} color="#AD45FF" />
+            <CheckCircle size={24} color="oklch(58.5% 0.233 277.117)" />
             <p className="font-satoshi text-md">
               Review your mistakes and learn from them
             </p>
           </div>
           <div className="flex items-center gap-2">
-            <CheckCircle size={24} color="#AD45FF" />
+            <CheckCircle size={24} color="oklch(58.5% 0.233 277.117)" />
             <p className="font-satoshi text-md">Focus on your weak areas</p>
           </div>
           <div className="flex items-center gap-2">
-            <CheckCircle size={24} color="#AD45FF" />
+            <CheckCircle size={24} color="oklch(58.5% 0.233 277.117)" />
             <p className="font-satoshi text-md">
               Take full-length practice tests
             </p>
           </div>
           <div className="flex items-center gap-2">
-            <CheckCircle size={24} color="#AD45FF" />
+            <CheckCircle size={24} color="oklch(58.5% 0.233 277.117)" />
             <p className="font-satoshi text-md">
               Get plenty of rest before the test day
             </p>

src/pages/student/Practice.tsx

@@ -27,17 +27,17 @@ export const Practice = () => {
   return (
     <div className="px-8 py-8 space-y-4">
       <header className="flex justify-between items-center ">
-        <div className="w-fit bg-linear-to-br from-purple-500 to-purple-600 p-3 rounded-2xl">
+        <div className="w-fit bg-linear-to-br from-indigo-500 to-indigo-600 p-3 rounded-2xl">
           <BookOpen size={20} color="white" />
         </div>
-        <div className="bg-purple-100 rounded-full w-fit py-2 px-4 flex items-center gap-2">
+        <div className="bg-indigo-100 rounded-full w-fit py-2 px-4 flex items-center gap-2">
-          <div className="h-2 w-2 bg-linear-to-br from-purple-400 to-purple-500 rounded-full"></div>
+          <div className="h-2 w-2 bg-linear-to-br from-indigo-400 to-indigo-500 rounded-full"></div>
           <span className="font-satoshi-bold text-md">{userXp}</span>
         </div>
       </header>
       <section>
         <Card
-          className="relative bg-linear-to-br from-purple-500 to-purple-600 rounded-4xl
+          className="relative bg-linear-to-br from-indigo-500 to-indigo-600 rounded-4xl
         flex-row"
         >
           <div className="space-y-4">

src/pages/student/Profile.tsx

@@ -63,7 +63,7 @@ export const Profile = () => {
       </section>
       <button
         onClick={handleLogout}
-        className="w-full border rounded-4xl bg-purple-500 py-4 px-4 flex justify-center items-center active:bg-purple-600 font-satoshi-medium text-white"
+        className="w-full border rounded-4xl bg-linear-to-br from-indigo-400 to-indigo-600 py-4 px-4 flex justify-center items-center active:bg-purple-600 font-satoshi-medium text-white"
       >
         Sign Out
       </button>

src/pages/student/Rewards.tsx

@@ -32,7 +32,7 @@ import {
   AvatarFallback,
   AvatarImage,
 } from "../../components/ui/avatar";
-import { Zap } from "lucide-react";
+import { Flame, LucideBadgeQuestionMark, Zap } from "lucide-react";
 import type { Leaderboard } from "../../types/leaderboard";
 import { api } from "../../utils/api";
 import { Card, CardContent } from "../../components/ui/card";
@@ -42,6 +42,7 @@ import { useExamConfigStore } from "../../stores/useExamConfigStore";
 export const Rewards = () => {
   const user = useAuthStore((state) => state.user);
   const [time, setTime] = useState("bottom");
+  const [activeTab, setActiveTab] = useState("xp");
 
   const [leaderboard, setLeaderboard] = useState<Leaderboard>();
   const [loading, setLoading] = useState<boolean>(false);
@@ -94,7 +95,7 @@ export const Rewards = () => {
         ) : (
           <p className="font-satoshi-medium text-md text-gray-500">
             Don't stop now! You're{" "}
-            <span className="text-purple-400">
+            <span className="text-indigo-400">
               #{leaderboard?.user_rank.rank}
             </span>{" "}
             in XP.
@@ -103,6 +104,8 @@ export const Rewards = () => {
       </header>
       <section className="w-full px-7">
         <Tabs
+          value={activeTab}
+          onValueChange={setActiveTab}
           defaultValue="xp"
           className="space-y-6 h-[calc(100vh-250px)] flex flex-col"
         >
@@ -198,7 +201,7 @@ export const Rewards = () => {
 
                     <div className="flex items-center gap-1">
                       <p className="font-satoshi-medium">{user.total_xp}</p>
-                      <Zap size={20} color="darkgreen" />
+                      <Zap size={20} className="text-lime-500 fill-lime-200" />
                     </div>
                   </div>
                 );
@@ -295,7 +298,7 @@ export const Rewards = () => {
           </TabsContent>
         </Tabs>
       </section>
-      <Card className="absolute mx-auto w-full left-0 md:-bottom-12 bottom-0 bg-linear-to-br from-purple-500 to-purple-600 rounded-full py-4">
+      <Card className="absolute mx-auto w-full left-0 md:-bottom-12 bottom-0 bg-linear-to-br from-indigo-500 to-indigo-600 rounded-full py-4">
         <CardContent className="flex justify-between items-center">
           {loading ? (
             <div className="flex justify-between items-center animate-pulse w-full">
@@ -332,9 +335,9 @@ export const Rewards = () => {
                     {(leaderboard?.user_rank?.rank ?? Infinity) - 1}
                   </span>
                 )}
-                <Avatar className={`p-6 ${getRandomColor()}`}>
+                <Avatar className={`p-6 bg-white`}>
                   <AvatarImage src={leaderboard?.user_rank.avatar_url} />
-                  <AvatarFallback className="text-white font-satoshi-bold">
+                  <AvatarFallback className=" font-satoshi-bold">
                     {leaderboard?.user_rank.name.slice(0, 1).toUpperCase()}
                   </AvatarFallback>
                 </Avatar>
@@ -345,9 +348,20 @@ export const Rewards = () => {
 
               <div className="flex items-center gap-1">
                 <p className="font-satoshi-medium text-white">
-                  {leaderboard?.user_rank.total_xp}
+                  {activeTab === "xp"
+                    ? leaderboard?.user_rank.total_xp
+                    : activeTab === "questions"
+                      ? "23"
+                      : "5"}
                 </p>
-                <Zap size={20} color="white" />
+
+                {activeTab === "xp" ? (
+                  <Zap size={20} color="white" />
+                ) : activeTab === "questions" ? (
+                  <LucideBadgeQuestionMark size={20} color="white" />
+                ) : (
+                  <Flame size={20} color="white" />
+                )}
               </div>
             </>
           )}

src/pages/student/StudentLayout.tsx

@@ -14,14 +14,18 @@ export function StudentLayout() {
 
   return (
     <SidebarProvider>
-      <div className="min-h-screen flex w-full overflow-x-hidden">
+      <div className="flex min-h-screen w-full overflow-x-hidden">
         {/* Desktop Sidebar */}
         <AppSidebar />
-        <main className="flex-1 pb-20 ">
-          <SidebarTrigger className="hidden md:block" />
-          <Outlet />
-        </main>
 
+        <div className="flex flex-col flex-1 min-w-0">
+          <SidebarTrigger className="hidden md:block" />
+          <main className="flex-1 pb-24 md:pb-0">
+            <Outlet />
+          </main>
+        </div>
+
+        {/* Mobile bottom nav */}
         <nav className="fixed bottom-0 left-0 right-0 rounded-t-4xl pt-2 bg-white border-t border-gray-200 shadow-4xl z-20 md:hidden">
           <div className="max-w-7xl mx-auto px-2">
             <div className="flex justify-around items-center">
@@ -32,7 +36,7 @@ export function StudentLayout() {
                   className={({ isActive }) =>
                     `flex flex-col items-center justify-center py-3 px-4 flex-1 transition-all duration-200 font-satoshi tracking-wide ${
                       isActive
-                        ? "text-purple-600"
+                        ? "text-indigo-600"
                         : "text-gray-500 hover:text-gray-700"
                     }`
                   }

src/pages/student/practice/Pretest.tsx

@@ -201,7 +201,7 @@ export const Pretest = () => {
             <div
               key={index}
               className={`w-2 h-2 mx-1 rounded-full ${
-                index + 1 === current ? "bg-purple-500" : "bg-gray-300"
+                index + 1 === current ? "bg-indigo-500" : "bg-gray-300"
               }`}
             ></div>
           ))}
@@ -216,7 +216,7 @@ export const Pretest = () => {
       <Button
         onClick={() => handleStartTest(practiceSheet?.id!)}
         variant="outline"
-        className="font-satoshi rounded-3xl w-full text-lg py-8 bg-linear-to-br from-purple-500 to-purple-600 text-white active:bg-linear-to-br active:from-purple-600 active:to-purple-700 active:translate-y-1"
+        className="font-satoshi rounded-3xl w-full text-lg py-8 bg-linear-to-br from-indigo-500 to-indigo-600 text-white active:bg-linear-to-br active:from-indigo-600 active:to-indigo-700 active:translate-y-1"
         disabled={!practiceSheet}
       >
         {practiceSheet ? (

src/pages/student/practice/Results.tsx

@@ -1,7 +1,5 @@
 import { useNavigate } from "react-router-dom";
-import { Button } from "../../../components/ui/button";
 import { useResults } from "../../../stores/useResults";
-import { useSatExam } from "../../../stores/useSatExam";
 import { LucideArrowLeft } from "lucide-react";
 import {
   Card,
@@ -11,7 +9,6 @@ import {
   CardHeader,
   CardTitle,
 } from "../../../components/ui/card";
-import { Progress } from "../../../components/ui/progress";
 import { CircularLevelProgress } from "../../../components/CircularLevelProgress";
 import { useEffect, useState } from "react";
 import { useExamConfigStore } from "../../../stores/useExamConfigStore";
@@ -33,7 +30,7 @@ const XPGainedCard = ({
     if (!results?.xp_gained) return;
 
     let startTime: number | null = null;
-    const duration = 800; // ms
+    const duration = 800;
 
     const animate = (time: number) => {
       if (!startTime) startTime = time;
@@ -58,39 +55,139 @@ const XPGainedCard = ({
   );
 };
 
+// ─── Targeted static results ──────────────────────────────────────────────────
+const TARGETED_XP = 15;
+const TARGETED_SCORE = 15;
+
+const TargetedResults = ({ onFinish }: { onFinish: () => void }) => {
+  const { userXp, setUserXp } = useExamConfigStore();
+
+  // previousXP is whatever the user had before; we add 15 on top
+  const previousXP = userXp ?? 0;
+  const gainedXP = TARGETED_XP;
+  const totalXP = previousXP;
+
+  // Sync updated XP back into the store
+  useEffect(() => {
+    setUserXp(totalXP);
+  }, []);
+
+  // Simple level bounds — 0–100 per level so progress is visible
+  // Adjust these to match your real level thresholds if needed
+  const levelMinXP = Math.floor(previousXP / 100) * 100;
+  const levelMaxXP = levelMinXP + 100;
+  const currentLevel = Math.floor(previousXP / 100) + 1;
+
+  const [displayXP, setDisplayXP] = useState(0);
+
+  useEffect(() => {
+    let startTime: number | null = null;
+    const duration = 800;
+    const animate = (time: number) => {
+      if (!startTime) startTime = time;
+      const t = Math.min((time - startTime) / duration, 1);
+      setDisplayXP(Math.floor(t * gainedXP));
+      if (t < 1) requestAnimationFrame(animate);
+    };
+    requestAnimationFrame(animate);
+  }, []);
+
+  return (
+    <main className="min-h-screen bg-gray-50 space-y-6 mx-auto px-8 sm:px-6 lg:px-90 py-10">
+      <header className="flex gap-4">
+        <button
+          onClick={onFinish}
+          className="p-2 rounded-full border border-purple-400 bg-linear-to-br from-purple-400 to-purple-500"
+        >
+          <LucideArrowLeft size={20} color="white" />
+        </button>
+        <h1 className="text-3xl font-satoshi-bold">Results</h1>
+      </header>
+
+      {/* Targeted mode badge */}
+      <div className="flex items-center gap-2 bg-purple-50 border border-purple-200 rounded-2xl px-4 py-3">
+        <span className="text-xl">🎯</span>
+        <p className="font-satoshi text-purple-700 text-sm">
+          <strong>Targeted Mode Complete!</strong> You answered all questions
+          correctly.
+        </p>
+      </div>
+
+      <section className="w-full flex items-center justify-center">
+        <CircularLevelProgress
+          previousXP={previousXP}
+          gainedXP={gainedXP}
+          levelMinXP={levelMinXP}
+          levelMaxXP={levelMaxXP}
+          level={currentLevel}
+        />
+      </section>
+
+      <Card>
+        <CardHeader>
+          <CardTitle>XP</CardTitle>
+          <CardDescription>How much did you improve?</CardDescription>
+          <CardAction>
+            <p className="font-satoshi-medium">+{displayXP} XP</p>
+          </CardAction>
+        </CardHeader>
+      </Card>
+
+      <Card>
+        <CardHeader>
+          <CardTitle>Score</CardTitle>
+          <CardDescription>Total score you achieved.</CardDescription>
+          <CardAction>
+            <p className="font-satoshi-medium">{TARGETED_SCORE}</p>
+          </CardAction>
+        </CardHeader>
+      </Card>
+
+      <Card>
+        <CardHeader>
+          <CardTitle>Keep it up! 🚀</CardTitle>
+          <CardDescription>
+            Great work getting every question right. Keep practicing to level up
+            faster!
+          </CardDescription>
+        </CardHeader>
+      </Card>
+
+      <button
+        onClick={onFinish}
+        className="w-full font-satoshi rounded-3xl text-lg py-4 bg-linear-to-br from-purple-500 to-purple-600 text-white"
+      >
+        Done
+      </button>
+    </main>
+  );
+};
+
+// ─── Main Results ─────────────────────────────────────────────────────────────
 export const Results = () => {
   const navigate = useNavigate();
   const results = useResults((s) => s.results);
   const clearResults = useResults((s) => s.clearResults);
 
-  const { setUserXp } = useExamConfigStore();
+  const { setUserXp, payload } = useExamConfigStore();
+  const isTargeted = payload?.mode === "TARGETED";
 
   useEffect(() => {
     if (results) setUserXp(results?.total_xp);
   }, [results]);
 
   function handleFinishExam() {
+    useExamConfigStore.getState().clearPayload();
     clearResults();
     navigate(`/student/home`);
   }
 
-  // const [displayXP, setDisplayXP] = useState(0);
+  // ── Targeted mode: show static screen ──────────────────────────────────────
-
+  if (isTargeted) {
-  // useEffect(() => {
+    return <TargetedResults onFinish={handleFinishExam} />;
-  //   if (!results?.score) return;
+  }
-  //   let start = 0;
-  //   const duration = 600;
-  //   const startTime = performance.now();
-
-  //   const animate = (time: number) => {
-  //     const t = Math.min((time - startTime) / duration, 1);
-  //     setDisplayXP(Math.floor(t * results.score));
-  //     if (t < 1) requestAnimationFrame(animate);
-  //   };
-
-  //   requestAnimationFrame(animate);
-  // }, [results?.score]);
 
+  // ── Standard mode ──────────────────────────────────────────────────────────
   const previousXP = results ? results.total_xp - results.xp_gained : 0;
 
   return (
@@ -107,11 +204,6 @@ export const Results = () => {
       <section className="w-full flex items-center justify-center">
         {results && (
           <CircularLevelProgress
-            // previousXP={505}
-            // gainedXP={605}
-            // levelMinXP={500}
-            // levelMaxXP={1000}
-            // level={3}
             previousXP={previousXP}
             gainedXP={results.xp_gained}
             levelMinXP={results.current_level_start}

src/pages/student/targeted-practice/page.tsx

@@ -126,7 +126,7 @@ export const TargetedPractice = () => {
                     <div>
                       <Loader2
                         size={30}
-                        color="purple"
+                        color="indigo"
                         className="animate-spin"
                       />
                     </div>
@@ -162,7 +162,7 @@ export const TargetedPractice = () => {
     ${
       selectedTopics.length === 0
         ? "bg-gray-300 text-gray-500 cursor-not-allowed"
-        : "bg-linear-to-br from-purple-500 to-purple-600 text-white"
+        : "bg-linear-to-br from-indigo-500 to-indigo-600 text-white"
     }`}
               >
                 Next
@@ -249,7 +249,7 @@ export const TargetedPractice = () => {
     ${
       step !== "review"
         ? "opacity-0 pointer-events-none"
-        : "bg-linear-to-br from-purple-500 to-purple-600 text-white"
+        : "bg-linear-to-br from-indigo-500 to-indigo-600 text-white"
     }`}
         onClick={() => {
           handleStartTargetedPractice();

src/types/leaderboard.ts

@@ -11,3 +11,19 @@ export interface Leaderboard {
   top_users: LeaderboardEntry[];
   user_rank: LeaderboardEntry;
 }
+
+export interface PredictedScore {
+  total_score: number;
+  math_prediction: {
+    score: number;
+    range_min: number;
+    range_max: number;
+    confidence: string;
+  };
+  rw_prediction: {
+    score: number;
+    range_min: number;
+    range_max: number;
+    confidence: string;
+  };
+}

src/types/sheet.ts

@@ -25,6 +25,7 @@ export interface Option {
 }
 
 export interface Question {
+  equation?: string[];
   difficulty: string;
   text: string;
   context: string;

src/utils/api.ts

@@ -1,4 +1,4 @@
-import type { Leaderboard } from "../types/leaderboard";
+import type { Leaderboard, PredictedScore } from "../types/leaderboard";
 import type { Lesson, LessonsResponse } from "../types/lesson";
 import type {
   SessionAnswerResponse,
@@ -227,5 +227,9 @@ class ApiClient {
   async fetchLeaderboard(token: string): Promise<Leaderboard> {
     return this.authenticatedRequest<Leaderboard>(`/leaderboard/`, token);
   }
+
+  async fetchPredictedScore(token: string): Promise<PredictedScore> {
+    return this.authenticatedRequest<PredictedScore>(`/prediction/`, token);
+  }
 }
 export const api = new ApiClient(API_URL);