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static/admin.css

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+/* =========
+   Admin UI — RAG App
+   File: static/admin.css
+   ========= */
+
+/* --- Design tokens --- */
+:root{
+  --admin-bg: #f7f8fa;
+  --admin-card: #ffffff;
+  --admin-text: #1d2433;
+  --admin-muted: #6b7280;
+  --admin-border: #e5e7eb;
+  --admin-primary: #3b82f6;   /* biru */
+  --admin-accent: #22c55e;    /* hijau */
+  --admin-danger: #ef4444;    /* merah */
+  --admin-warning: #f59e0b;   /* oranye */
+  --radius: 16px;
+  --shadow-100: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
+  --shadow-200: 0 4px 10px rgba(0,0,0,.08);
+  --shadow-300: 0 12px 24px rgba(0,0,0,.12);
+}
+
+/* Dark mode otomatis */
+@media (prefers-color-scheme: dark){
+  :root{
+    --admin-bg: #0b1220;
+    --admin-card: #0f172a;
+    --admin-text: #e5e7eb;
+    --admin-muted: #9ca3af;
+    --admin-border: #1f2937;
+    --admin-primary: #60a5fa;
+    --admin-accent: #34d399;
+    --admin-danger: #f87171;
+    --admin-warning: #fbbf24;
+  }
+}
+
+/* --- Global --- */
+body{
+  background: var(--admin-bg);
+  color: var(--admin-text);
+}
+
+/* Navbar */
+.navbar{
+  box-shadow: var(--shadow-100);
+  border-bottom: 1px solid var(--admin-border);
+  background: var(--admin-card) !important;
+}
+.navbar .navbar-brand{
+  font-weight: 700;
+  letter-spacing: .2px;
+}
+.navbar .nav-link{
+  color: var(--admin-text);
+  opacity: .85;
+}
+.navbar .nav-link:hover{
+  opacity: 1;
+}
+.navbar-text{
+  color: var(--admin-muted);
+}
+
+/* Container spacing */
+.container{
+  padding-bottom: 48px;
+}
+
+/* Alerts */
+.alert{
+  border-radius: 12px;
+  border: 1px solid var(--admin-border);
+  box-shadow: var(--shadow-100);
+}
+
+/* Headings */
+h4, .h4{
+  font-weight: 700;
+  letter-spacing: .2px;
+}
+
+/* --- Cards / dashboard --- */
+.card{
+  border: 1px solid var(--admin-border);
+  background: var(--admin-card);
+  border-radius: var(--radius);
+  box-shadow: var(--shadow-100);
+  transition: transform .08s ease, box-shadow .2s ease;
+}
+.card:hover{
+  transform: translateY(-1px);
+  box-shadow: var(--shadow-200);
+}
+.card .fs-1{
+  font-weight: 800;
+  line-height: 1;
+}
+
+/* --- Forms / filters --- */
+form .form-control, form .form-select{
+  border-radius: 12px;
+  border-color: var(--admin-border);
+  background: var(--admin-card);
+  color: var(--admin-text);
+}
+form .form-control::placeholder{
+  color: var(--admin-muted);
+}
+.btn{
+  border-radius: 12px;
+  box-shadow: var(--shadow-100);
+}
+.btn-primary{
+  background: var(--admin-primary);
+  border-color: var(--admin-primary);
+}
+.btn-outline-dark{
+  color: var(--admin-text);
+  border-color: var(--admin-border);
+}
+.btn-outline-dark:hover{
+  background: var(--admin-border);
+}
+
+/* --- Tables --- */
+.table{
+  margin-bottom: 12px;
+  color: var(--admin-text);
+}
+.table thead th{
+  font-size: .84rem;
+  text-transform: uppercase;
+  letter-spacing: .06em;
+  color: var(--admin-muted);
+  border-bottom: 1px solid var(--admin-border) !important;
+  background: var(--admin-bg);
+  position: sticky;
+  top: 0;           /* sticky header saat scroll */
+  z-index: 1;
+}
+.table td, .table th{
+  border-color: var(--admin-border);
+  vertical-align: middle;
+}
+.table-hover tbody tr:hover{
+  background: color-mix(in oklab, var(--admin-primary) 8%, transparent);
+}
+.table .text-truncate{
+  max-width: 600px;
+}
+
+/* Truncate multi-baris */
+.truncate-2{
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+}
+.truncate-3{
+  display: -webkit-box;
+  -webkit-line-clamp: 3;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+}
+
+/* Badges */
+.badge{
+  border-radius: 999px;
+  padding: .4em .7em;
+  font-weight: 600;
+}
+.text-bg-dark{
+  background: #111827 !important;
+  color: #f9fafb !important;
+}
+.text-bg-info{
+  background: #0ea5e9 !important;
+}
+.text-bg-secondary{
+  background: #64748b !important;
+}
+
+/* Status pills khusus */
+.badge-yes{
+  background: var(--admin-accent);
+}
+.badge-no{
+  background: var(--admin-muted);
+}
+
+/* Pagination */
+.pagination .page-link{
+  border-radius: 10px !important;
+  margin: 0 4px;
+  border-color: var(--admin-border);
+  color: var(--admin-text);
+  background: var(--admin-card);
+}
+.pagination .page-item.disabled .page-link{
+  opacity: .6;
+}
+.pagination .page-link:hover{
+  border-color: var(--admin-primary);
+}
+
+/* Table responsive wrapper */
+.table-responsive{
+  border: 1px solid var(--admin-border);
+  border-radius: var(--radius);
+  box-shadow: var(--shadow-100);
+  background: var(--admin-card);
+  padding: 6px;
+}
+
+/* Small helper for “chip” subjects */
+.subject-chip{
+  display: inline-flex;
+  align-items: center;
+  gap: .4rem;
+  padding: .3rem .6rem;
+  border-radius: 999px;
+  border: 1px solid var(--admin-border);
+  background: var(--admin-bg);
+  font-size: .8rem;
+  color: var(--admin-text);
+}
+
+/* Links */
+a{
+  text-decoration: none;
+}
+a:hover{
+  text-decoration: underline;
+}
+
+/* Footer (kalau dibutuhkan) */
+.admin-footer{
+  margin-top: 24px;
+  color: var(--admin-muted);
+  font-size: .9rem;
+}
+
+/* --- Utilities --- */
+.shadow-100{ box-shadow: var(--shadow-100); }
+.shadow-200{ box-shadow: var(--shadow-200); }
+.shadow-300{ box-shadow: var(--shadow-300); }
+.rounded-xl{ border-radius: var(--radius); }
+.muted{ color: var(--admin-muted); }
+
+/* --- Mobile tweaks --- */
+@media (max-width: 768px){
+  .table .text-truncate{ max-width: 260px; }
+  .navbar .navbar-text{ display: none; }
+  .card .fs-1{ font-size: 2rem; }
+}

static/style.css

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+/* static/style.css – tambahan ringkas biar mirip SS */
+body { font-family: system-ui, Segoe UI, Roboto, Arial, sans-serif; background:#f5f7fb; margin:0; }
+.container { max-width: 980px; margin: 0 auto; padding: 24px; }
+
+.hero { background:#4a6ea9; color:#fff; padding:28px 24px; border-radius:12px; }
+.hero h1 { margin:0 0 8px; letter-spacing:1px; }
+.nav a { color:#e8eefc; margin-right:16px; text-decoration:none; font-weight:600; }
+.nav a[aria-disabled="true"] { opacity:.6; pointer-events:none; }
+
+.welcome { text-align:center; padding:28px 0; }
+.welcome h2 { margin:0 0 8px; color:#2b3852; }
+
+.subjects h3 { text-align:center; color:#2b3852; margin-bottom:16px; }
+.grid { display:grid; grid-template-columns: repeat(3, 1fr); gap:18px; }
+.card { display:block; background:linear-gradient(180deg,#6b86bd,#5575b1); color:#fff; padding:22px; border-radius:12px; text-decoration:none; box-shadow:0 6px 16px rgba(0,0,0,.08); }
+.card h4 { margin:0 0 8px; letter-spacing:.5px; }
+.card p { margin:0; opacity:.95; }
+
+.header { display:flex; justify-content:space-between; align-items:center; margin-bottom:14px; color:#fff;
+          background:#6b86bd; padding:12px 16px; border-radius:10px; }
+.header .link { color:#fff; text-decoration:none; }
+
+.main { background:#fff; border-radius:12px; padding:16px; box-shadow:0 6px 16px rgba(0,0,0,.06); }
+.chat-box { height:420px; overflow:auto; padding:8px; background:#f6f8fc; border-radius:10px; }
+.msg { max-width:70%; margin:8px 0; padding:10px 12px; border-radius:14px; line-height:1.3; }
+.msg.user { margin-left:auto; background:#4a6ea9; color:#fff; }
+.msg.bot  { background:#e9eef8; color:#2b3852; }
+.input-row { display:flex; gap:8px; margin-top:12px; }
+.input-row input { flex:1; padding:10px 12px; border-radius:10px; border:1px solid #cbd5e1; }
+.btn { background:#4a6ea9; color:#fff; border:none; padding:10px 14px; border-radius:10px; cursor:pointer; }
+.btn:hover { filter:brightness(.95); }
+
+.about { line-height:1.6; color:#2b3852; }
+.about h3 { color:#4a6ea9; margin-bottom:8px; }
+.about h4 { margin-top:24px; color:#344767; }
+.bio { list-style:none; padding:0; margin:0; }
+.bio li { margin-bottom:4px; }
+
+/* ===========================================
+   AUTH UI — Login & Register
+   Fokus: tampilan saja (tanpa ubah HTML)
+   =========================================== */
+
+/* ---------- Design tokens ---------- */
+:root {
+  --auth-bg1:  #6c8bd6;
+  --auth-bg2:  #405eae;
+  --auth-card: #ffffff;
+  --auth-text: #1f2937;
+  --auth-muted:#6b7280;
+  --auth-primary: #4f6fd0;
+  --auth-primary-2: #3e5cc2;
+  --auth-success-bg:#e8f7ee;
+  --auth-success-fg:#11623c;
+  --auth-error-bg:  #fdeaea;
+  --auth-error-fg:  #8f1d1d;
+  --auth-border: #e5e7eb;
+  --shadow-1: 0 6px 20px rgba(0,0,0,.12);
+  --shadow-2: 0 16px 48px rgba(0,0,0,.18);
+  --radius-lg: 16px;
+  --radius-md: 12px;
+}
+
+/* Dark mode otomatis */
+@media (prefers-color-scheme: dark) {
+  :root {
+    --auth-bg1:  #0f1b3a;
+    --auth-bg2:  #0b1330;
+    --auth-card: #0f172a;
+    --auth-text: #e5e7eb;
+    --auth-muted:#a3a9b5;
+    --auth-primary: #6d8cff;
+    --auth-primary-2: #5876f3;
+    --auth-success-bg:#0f2b20;
+    --auth-success-fg:#a6f3c7;
+    --auth-error-bg:  #2a1212;
+    --auth-error-fg:  #ffb3b3;
+    --auth-border: #1f2937;
+    --shadow-1: 0 8px 26px rgba(0,0,0,.35);
+    --shadow-2: 0 24px 60px rgba(0,0,0,.45);
+  }
+}
+
+/* ---------- Background full ---------- */
+.auth-bg {
+  min-height: 100vh;
+  padding: 32px 18px;
+  display: grid;
+  place-items: center;
+  background: radial-gradient(1200px 800px at 10% 10%, rgba(255,255,255,.18), transparent 40%),
+              radial-gradient(1000px 700px at 90% 20%, rgba(255,255,255,.12), transparent 45%),
+              linear-gradient(160deg, var(--auth-bg1) 0%, var(--auth-bg2) 100%);
+  position: relative;
+  overflow: hidden;
+}
+
+/* Decorative blobs */
+.auth-bg::before, .auth-bg::after {
+  content: "";
+  position: absolute;
+  filter: blur(60px);
+  opacity: .35;
+  animation: floaty 14s ease-in-out infinite alternate;
+}
+.auth-bg::before {
+  width: 480px; height: 480px;
+  left: -120px; bottom: -120px;
+  background: radial-gradient(circle at 30% 30%, #ffffff66, transparent 60%);
+}
+.auth-bg::after {
+  width: 520px; height: 520px;
+  right: -140px; top: -140px;
+  background: radial-gradient(circle at 70% 70%, #ffffff55, transparent 60%);
+  animation-duration: 18s;
+}
+
+@keyframes floaty {
+  from { transform: translateY(-6px) translateX(0); }
+  to   { transform: translateY(6px) translateX(4px); }
+}
+
+/* ---------- Card ---------- */
+.auth-card {
+  width: 100%;
+  max-width: 440px;
+  background: color-mix(in oklab, var(--auth-card) 92%, transparent);
+  -webkit-backdrop-filter: blur(10px);
+  backdrop-filter: blur(10px);
+  border: 1px solid color-mix(in oklab, var(--auth-border) 70%, transparent);
+  border-radius: var(--radius-lg);
+  box-shadow: var(--shadow-1);
+  padding: 26px 22px;
+  position: relative;
+  overflow: hidden;
+  transform: translateZ(0);
+}
+.auth-card::after{
+  /* top accent line */
+  content:"";
+  position:absolute;
+  inset: 0 0 auto 0;
+  height: 3px;
+  background: linear-gradient(90deg, var(--auth-primary), var(--auth-primary-2));
+  opacity: .9;
+}
+
+/* micro-hover lift */
+.auth-card:hover{
+  box-shadow: var(--shadow-2);
+  transform: translateY(-1px);
+}
+
+/* ---------- Titles ---------- */
+.auth-title{
+  margin: 2px 0 6px;
+  font-size: 24px;
+  font-weight: 800;
+  letter-spacing: .2px;
+  color: var(--auth-text);
+}
+.auth-subtitle{
+  margin: 0 0 16px;
+  color: var(--auth-muted);
+  font-size: 14px;
+}
+
+/* ---------- Form ---------- */
+.auth-card form{
+  display: grid;
+  gap: 12px;
+  margin-top: 10px;
+}
+
+/* Input wrapper (adds subtle focus ring) */
+.auth-input{
+  position: relative;
+}
+.auth-card input{
+  width: 100%;
+  padding: 12px 14px;
+  border-radius: var(--radius-md);
+  border: 1px solid var(--auth-border);
+  background: color-mix(in oklab, var(--auth-card) 98%, transparent);
+  color: var(--auth-text);
+  font-size: 14px;
+  transition: border-color .15s ease, box-shadow .2s ease, background .2s ease;
+}
+.auth-card input::placeholder{
+  color: color-mix(in oklab, var(--auth-muted) 80%, transparent);
+}
+.auth-card input:focus{
+  outline: none;
+  border-color: color-mix(in oklab, var(--auth-primary) 70%, #000 0%);
+  box-shadow: 0 0 0 4px color-mix(in oklab, var(--auth-primary) 18%, transparent);
+  background: color-mix(in oklab, var(--auth-card) 100%, transparent);
+}
+
+/* ---------- Button ---------- */
+.auth-card .btn{
+  width: 100%;
+  padding: 12px 16px;
+  border-radius: var(--radius-md);
+  font-weight: 700;
+  letter-spacing: .2px;
+  border: none;
+  cursor: pointer;
+  background: linear-gradient(180deg, var(--auth-primary), var(--auth-primary-2));
+  color: #fff;
+  box-shadow: 0 8px 24px color-mix(in oklab, var(--auth-primary) 35%, transparent);
+  transition: transform .06s ease, filter .2s ease, box-shadow .2s ease;
+}
+.auth-card .btn:hover{
+  filter: brightness(.98);
+  box-shadow: 0 10px 30px color-mix(in oklab, var(--auth-primary) 45%, transparent);
+}
+.auth-card .btn:active{
+  transform: translateY(1px);
+}
+
+/* ---------- Helper text & links ---------- */
+.muted{
+  margin-top: 14px;
+  text-align: center;
+  color: var(--auth-muted);
+  font-size: 13px;
+}
+.muted a{
+  color: var(--auth-primary);
+  text-decoration: none;
+  font-weight: 600;
+}
+.muted a:hover{ text-decoration: underline; }
+
+/* ---------- Flash messages ---------- */
+.flash{
+  margin: 8px 0 4px;
+  padding: 10px 12px;
+  border-radius: var(--radius-md);
+  font-size: 13px;
+  border: 1px solid transparent;
+}
+.flash.success{
+  background: var(--auth-success-bg);
+  color: var(--auth-success-fg);
+  border-color: color-mix(in oklab, var(--auth-success-fg) 24%, transparent);
+}
+.flash.error{
+  background: var(--auth-error-bg);
+  color: var(--auth-error-fg);
+  border-color: color-mix(in oklab, var(--auth-error-fg) 24%, transparent);
+}
+
+/* ---------- Small divider (opsional, jika nanti butuh) ---------- */
+.auth-divider{
+  display: grid;
+  grid-template-columns: 1fr auto 1fr;
+  align-items: center;
+  gap: 10px;
+  color: var(--auth-muted);
+  font-size: 12px;
+}
+.auth-divider::before,
+.auth-divider::after{
+  content:"";
+  height: 1px;
+  background: color-mix(in oklab, var(--auth-border) 80%, transparent);
+}
+
+/* ---------- Responsive ---------- */
+@media (max-width: 560px){
+  .auth-card{ padding: 22px 18px; border-radius: 14px; }
+  .auth-title{ font-size: 22px; }
+}
+
+/* ---------- Reduced motion ---------- */
+@media (prefers-reduced-motion: reduce){
+  .auth-bg::before, .auth-bg::after{ animation: none; }
+  .auth-card, .auth-card .btn{ transition: none; }
+}
+
+/* inset kanan–kiri untuk semua field di login & register */
+.auth-card form{
+  padding-inline: 10px;      /* kiri–kanan 10px */
+}
+.auth-card input,
+.auth-card .btn{
+  width: 100%;
+  box-sizing: border-box;     /* pastikan hitung padding/border */
+}

templates/about.html

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+{% extends "base.html" %}
+{% block content %}
+<header class="header">
+  <h2>About • Virtual Asisten</h2>
+  <a class="link" href="{{ url_for('subjects') }}">← Kembali ke Home</a>
+</header>
+
+<main class="main about">
+  <h3>Virtual Asisten Pembelajaran Berbasis RAG</h3>
+  <p>
+    Virtual Asisten ini merupakan sistem pembelajaran berbasis Retrieval-Augmented Generation (RAG)
+    yang dirancang untuk membantu siswa memahami materi IPAS, PJOK, dan Pancasila lewat tanya-jawab
+    interaktif dengan LLM yang terhubung ke basis pengetahuan.
+  </p>
+
+  <h4>Identitas Peneliti</h4>
+  <ul class="bio">
+    <li><strong>Nama:</strong> <em>isi di sini</em></li>
+    <li><strong>NIM:</strong> <em>isi di sini</em></li>
+    <li><strong>Program Studi:</strong> <em>isi di sini</em></li>
+    <li><strong>Fakultas:</strong> <em>isi di sini</em></li>
+    <li><strong>Universitas:</strong> <em>isi di sini</em></li>
+    <li><strong>Judul Skripsi:</strong> <em>isi di sini</em></li>
+    <li><strong>Dosen Pembimbing Utama:</strong> <em>isi di sini</em></li>
+    <li><strong>Dosen Pembimbing Pendamping:</strong> <em>isi di sini</em></li>
+  </ul>
+
+  <h4>Tujuan</h4>
+  <p>
+    jadi dpr
+  </p>
+
+  <h4>Cara Penggunaan</h4>
+  <ol>
+    <li>Pilih mata pelajaran (IPAS, PJOK, Pancasila).</li>
+    <li>Ketik pertanyaan di kotak chat.</li>
+    <li>Sistem menjawab berdasarkan database mapel terpilih.</li>
+  </ol>
+</main>
+{% endblock %}

templates/admin_base.html

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+<!doctype html>
+<html lang="id">
+<head>
+  <meta charset="utf-8">
+  <title>Admin • RAG App</title>
+  <meta name="viewport" content="width=device-width,initial-scale=1">
+  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
+  <link rel="stylesheet" href="{{ url_for('static', filename='admin.css') }}">
+</head>
+<body>
+<nav class="navbar navbar-expand-lg bg-body-tertiary mb-3">
+  <div class="container-fluid">
+    <a class="navbar-brand" href="{{ url_for('admin_dashboard') }}">Admin Panel</a>
+    <div class="collapse navbar-collapse">
+      <ul class="navbar-nav me-auto">
+        <li class="nav-item"><a class="nav-link" href="{{ url_for('admin_users') }}">Users</a></li>
+        <li class="nav-item"><a class="nav-link" href="{{ url_for('admin_history') }}">History</a></li>
+        <li class="nav-item"><a class="nav-link" href="{{ url_for('subjects') }}">Kembali ke App</a></li>
+      </ul>
+      <span class="navbar-text">Login: {{ session.get('username') }}</span>
+    </div>
+  </div>
+</nav>
+
+<div class="container">
+  {% with msgs = get_flashed_messages(with_categories=true) %}
+    {% if msgs %}
+      {% for cat, msg in msgs %}
+        <div class="alert alert-{{ 'danger' if cat=='error' else cat }} alert-dismissible fade show" role="alert">
+          {{ msg }}
+          <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+        </div>
+      {% endfor %}
+    {% endif %}
+  {% endwith %}
+
+  {% block content %}{% endblock %}
+</div>
+
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
+</body>
+</html>

templates/admin_dashboard.html

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+{% extends "admin_base.html" %}
+{% block content %}
+<h4 class="mb-3">Dashboard</h4>
+<div class="row g-3">
+  <div class="col-md-3">
+    <div class="card"><div class="card-body">
+      <div class="fs-1">{{ total_users }}</div>
+      <div class="text-muted">Total Users</div>
+    </div></div>
+  </div>
+  <div class="col-md-3">
+    <div class="card"><div class="card-body">
+      <div class="fs-1">{{ total_active }}</div>
+      <div class="text-muted">Active Users</div>
+    </div></div>
+  </div>
+  <div class="col-md-3">
+    <div class="card"><div class="card-body">
+      <div class="fs-1">{{ total_admins }}</div>
+      <div class="text-muted">Admin</div>
+    </div></div>
+  </div>
+  <div class="col-md-3">
+    <div class="card"><div class="card-body">
+      <div class="fs-1">{{ total_msgs }}</div>
+      <div class="text-muted">Total Messages</div>
+    </div></div>
+  </div>
+</div>
+{% endblock %}

templates/admin_history.html

@@ -0,0 +1,101 @@
+{% extends "admin_base.html" %}
+{% block content %}
+
+<h4 class="mb-3">Riwayat Chat</h4>
+
+<form class="row g-2 mb-3" method="get">
+  <div class="col-lg-3 col-md-4 col-sm-6">
+    <input type="text" class="form-control" name="q" value="{{ q }}" placeholder="Cari di pesan…">
+  </div>
+  <div class="col-lg-3 col-md-4 col-sm-6">
+    <input type="text" class="form-control" name="username" value="{{ username }}" placeholder="username/email tepat…">
+  </div>
+  <div class="col-lg-2 col-md-4 col-sm-6">
+    <select class="form-select" name="subject">
+      <option value="">Semua Mapel</option>
+      {% for k, v in subjects.items() %}
+        <option value="{{ k }}" {% if subject==k %}selected{% endif %}>{{ v.label }}</option>
+      {% endfor %}
+    </select>
+  </div>
+  <div class="col-lg-2 col-md-4 col-sm-6">
+    <select class="form-select" name="role">
+      <option value="">Semua Role</option>
+      <option value="user" {% if role=='user' %}selected{% endif %}>user</option>
+      <option value="bot"  {% if role=='bot' %}selected{% endif %}>bot</option>
+    </select>
+  </div>
+  <div class="col-lg-1 col-md-3 col-sm-6">
+    <input type="number" class="form-control" name="per_page" value="{{ per_page }}" min="5" max="200" title="Jumlah per halaman">
+  </div>
+  <div class="col-lg-1 col-md-3 col-sm-6">
+    <button class="btn btn-primary w-100">Filter</button>
+  </div>
+</form>
+
+<div class="table-responsive">
+  <table class="table table-sm table-hover align-middle">
+    <thead>
+      <tr>
+        <th style="width:72px">ID</th>
+        <th style="width:160px">Waktu (WIB)</th>
+        <th style="width:220px">User</th>
+        <th style="width:120px">Subject</th>
+        <th style="width:90px">Role</th>
+        <th>Message</th>
+        <th style="width:90px">Aksi</th>
+      </tr>
+    </thead>
+    <tbody>
+      {% for it in items %}
+      <tr>
+        <td>{{ it.id }}</td>
+        <td>{{ it.timestamp|fmt_ts }}</td>
+        <td>
+          <div>{{ it.username }}</div>
+          <div class="text-muted" style="font-size:.86rem">{{ it.email }}</div>
+        </td>
+        <td><span class="subject-chip">{{ it.subject }}</span></td>
+        <td>
+          <span class="badge text-bg-{{ 'secondary' if it.role=='user' else 'info' }}">{{ it.role }}</span>
+        </td>
+        <td>
+          <div class="truncate-3" title="{{ it.message }}">{{ it.message }}</div>
+        </td>
+        <td class="text-nowrap">
+          <form action="{{ url_for('admin_delete_chat', chat_id=it.id) }}"
+                method="post" style="display:inline"
+                onsubmit="return confirm('Hapus riwayat chat #{{it.id}}?');">
+            <button class="btn btn-sm btn-outline-danger">Hapus</button>
+          </form>
+        </td>
+      </tr>
+      {% else %}
+      <tr>
+        <td colspan="7" class="text-center text-muted py-4">Belum ada data riwayat yang cocok.</td>
+      </tr>
+      {% endfor %}
+    </tbody>
+  </table>
+</div>
+
+{% set last = (total // per_page) + (1 if total % per_page else 0) %}
+<nav aria-label="pagination">
+  <ul class="pagination">
+    <li class="page-item {% if page <= 1 %}disabled{% endif %}">
+      <a class="page-link"
+         href="{{ url_for('admin_history', q=q, username=username, subject=subject, role=role, per_page=per_page, page=page-1) }}">Prev</a>
+    </li>
+    <li class="page-item disabled">
+      <span class="page-link">Page {{ page }} / {{ last or 1 }}</span>
+    </li>
+    <li class="page-item {% if page >= last %}disabled{% endif %}">
+      <a class="page-link"
+         href="{{ url_for('admin_history', q=q, username=username, subject=subject, role=role, per_page=per_page, page=page+1) }}">Next</a>
+    </li>
+  </ul>
+</nav>
+
+<div class="admin-footer">Total baris: <strong>{{ total }}</strong></div>
+
+{% endblock %}

templates/admin_users.html

@@ -0,0 +1,91 @@
+{% extends "admin_base.html" %}
+{% block content %}
+
+<h4 class="mb-3">Daftar Users</h4>
+
+<form class="row g-2 mb-3" method="get">
+  <div class="col-md-4 col-sm-6">
+    <input type="text" class="form-control" name="q" value="{{ q }}" placeholder="Cari username atau email…">
+  </div>
+  <div class="col-md-2 col-sm-3">
+    <input type="number" class="form-control" name="per_page" value="{{ per_page }}" min="5" max="100" title="Jumlah per halaman">
+  </div>
+  <div class="col-md-2 col-sm-3">
+    <button class="btn btn-primary w-100">Filter</button>
+  </div>
+</form>
+
+<div class="table-responsive">
+  <table class="table table-sm table-hover align-middle">
+    <thead>
+      <tr>
+        <th style="width:72px">ID</th>
+        <th>Username</th>
+        <th>Email</th>
+        <th style="width:90px">Active</th>
+        <th style="width:90px">Admin</th>
+        <th style="width:90px">#Chats</th>
+        <th style="width:280px">Aksi</th>
+      </tr>
+    </thead>
+    <tbody>
+      {% for u in users %}
+      <tr>
+        <td>{{ u.id }}</td>
+        <td>{{ u.username }}</td>
+        <td>{{ u.email }}</td>
+        <td>
+          <span class="badge {{ 'badge-yes' if u.is_active else 'badge-no' }}">
+            {{ 'Yes' if u.is_active else 'No' }}
+          </span>
+        </td>
+        <td>
+          <span class="badge {{ 'badge-yes' if u.is_admin else 'badge-no' }}">
+            {{ 'Yes' if u.is_admin else 'No' }}
+          </span>
+        </td>
+        <td>{{ counts.get(u.id, 0) }}</td>
+        <td class="text-nowrap">
+          <a class="btn btn-sm btn-outline-dark"
+             href="{{ url_for('admin_history', username=u.username) }}">Lihat History</a>
+
+          <form action="{{ url_for('admin_clear_user_history', user_id=u.id) }}"
+                method="post" style="display:inline"
+                onsubmit="return confirm('Hapus semua riwayat user {{u.username}}?');">
+            <button class="btn btn-sm btn-outline-warning">Clear History</button>
+          </form>
+
+          <form action="{{ url_for('admin_delete_user', user_id=u.id) }}"
+                method="post" style="display:inline"
+                onsubmit="return confirm('Hapus user {{u.username}} dan semua datanya? Tindakan ini tidak bisa dibatalkan.');">
+            <button class="btn btn-sm btn-outline-danger">Delete User</button>
+          </form>
+        </td>
+      </tr>
+      {% else %}
+      <tr>
+        <td colspan="7" class="text-center text-muted py-4">Belum ada data user.</td>
+      </tr>
+      {% endfor %}
+    </tbody>
+  </table>
+</div>
+
+{% set last = (total // per_page) + (1 if total % per_page else 0) %}
+<nav aria-label="pagination">
+  <ul class="pagination">
+    <li class="page-item {% if page <= 1 %}disabled{% endif %}">
+      <a class="page-link" href="{{ url_for('admin_users', q=q, per_page=per_page, page=page-1) }}">Prev</a>
+    </li>
+    <li class="page-item disabled">
+      <span class="page-link">Page {{ page }} / {{ last or 1 }}</span>
+    </li>
+    <li class="page-item {% if page >= last %}disabled{% endif %}">
+      <a class="page-link" href="{{ url_for('admin_users', q=q, per_page=per_page, page=page+1) }}">Next</a>
+    </li>
+  </ul>
+</nav>
+
+<div class="admin-footer">Total users: <strong>{{ total }}</strong></div>
+
+{% endblock %}

templates/base.html

@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="id">
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title>RAG Chat</title>
+    <link rel="stylesheet" href="{{ url_for('static', filename='style.css') }}">
+  </head>
+  <body>
+    <div class="container">
+      {% block content %}{% endblock %}
+    </div>
+  </body>
+</html>

templates/chat.html

@@ -0,0 +1,69 @@
+{% extends "base.html" %}
+{% block content %}
+<header class="header">
+  <h2>{{ subject_label }} - {{ "Ilmu Pengetahuan Alam dan Sosial" if subject=='ipas'
+                              else "Pendidikan Jasmani, Olahraga, dan Kesehatan" if subject=='penjas'
+                              else "Pendidikan Pancasila dan Kewarganegaraan" }}</h2>
+  <a class="link" href="{{ url_for('subjects') }}">← Kembali ke Home</a>
+</header>
+
+<main class="main">
+  <div id="chat-box" class="chat-box">
+    <div class="msg bot">Halo! Selamat datang di chat mata pelajaran {{ subject_label }}. Ada yang bisa saya bantu?</div>
+  </div>
+  <div class="input-row">
+    <input id="message" type="text" placeholder="Ketik pesan Anda...">
+    <button id="send" class="btn">SEND</button>
+  </div>
+</main>
+
+<script>
+const chatBox = document.getElementById('chat-box');
+const msgInput = document.getElementById('message');
+const sendBtn = document.getElementById('send');
+
+function append(role, text) {
+  const item = document.createElement('div');
+  item.className = 'msg ' + role;
+  item.textContent = text;
+  chatBox.appendChild(item);
+  chatBox.scrollTop = chatBox.scrollHeight;
+}
+
+async function ask(text){
+  const res = await fetch('{{ url_for("ask", subject_key=subject) }}', {
+    method: 'POST',
+    headers: {'Content-Type': 'application/json'},
+    body: JSON.stringify({message: text})
+  });
+  return await res.json();
+}
+
+// ✅ FIX: pastikan history selalu ada array valid
+const history = {{ history|default([])|tojson|safe }};
+for (const item of history) {
+  const div = document.createElement('div');
+  div.className = 'msg ' + item.role;
+  div.textContent = item.message;
+  chatBox.appendChild(div);
+}
+
+sendBtn.addEventListener('click', async () => {
+  const text = msgInput.value.trim();
+  if (!text) return;
+  append('user', text);
+  msgInput.value = '';
+  append('bot', '⏳ Sedang memikirkan jawaban...');
+  try {
+    const data = await ask(text);
+    chatBox.lastChild.textContent = data.ok ? data.answer : ('Error: ' + (data.error || 'unknown'));
+  } catch (e) {
+    chatBox.lastChild.textContent = 'Error jaringan.';
+  }
+});
+
+msgInput.addEventListener('keydown', (e) => {
+  if (e.key === 'Enter') sendBtn.click();
+});
+</script>
+{% endblock %}

templates/home.html

@@ -0,0 +1,36 @@
+{% extends "base.html" %}
+{% block content %}
+<header class="hero">
+  <h1>VIRTUAL ASISTEN</h1>
+  <nav class="nav">
+    <a class="nav-link" href="{{ url_for('subjects') }}">Home</a>
+    <a class="nav-link" href="{{ url_for('about') }}">About</a>
+
+    {% if session.get('logged_in') %}
+      <a class="nav-link" href="{{ url_for('auth_logout') }}">Logout</a>
+    {% endif %}
+
+    {% if session.get('is_admin') %}
+      <a class="nav-link nav-admin" href="{{ url_for('admin_dashboard') }}">Admin</a>
+    {% endif %}
+  </nav>
+</header>
+
+
+<section class="welcome">
+  <h2>Selamat Datang di Virtual Asisten</h2>
+  <p>Platform pembelajaran online untuk membantu Anda memahami materi pelajaran dengan lebih mudah</p>
+</section>
+
+<section class="subjects">
+  <h3>Mata Pelajaran</h3>
+  <div class="grid">
+    {% for key, cfg in subjects.items() %}
+      <a class="card" href="{{ url_for('chat_subject', subject_key=key) }}">
+        <h4>{{ cfg.label }}</h4>
+        <p>{{ cfg.desc }}</p>
+      </a>
+    {% endfor %}
+  </div>
+</section>
+{% endblock %}

templates/login.html

@@ -0,0 +1,26 @@
+{% extends "base.html" %}
+{% block content %}
+<div class="auth-bg">
+  <div class="auth-card">
+    <h1 class="auth-title">Selamat Datang</h1>
+    <p class="auth-subtitle">Silakan masuk ke akun Anda untuk melanjutkan.</p>
+
+    {# flash message #}
+    {% with messages = get_flashed_messages(with_categories=true) %}
+      {% if messages %}
+        {% for category, msg in messages %}
+          <div class="flash {{ category }}">{{ msg }}</div>
+        {% endfor %}
+      {% endif %}
+    {% endwith %}
+
+    <form method="POST" action="{{ url_for('auth_login') }}">
+      <input name="identity" placeholder="Email atau Username" required>
+      <input name="password" type="password" placeholder="Password" required>
+      <button class="btn" type="submit">Masuk</button>
+    </form>
+
+    <p class="muted">Tidak punya akun? <a href="{{ url_for('auth_register') }}">Daftar sekarang</a></p>
+  </div>
+</div>
+{% endblock %}

templates/register.html

@@ -0,0 +1,28 @@
+{% extends "base.html" %}
+{% block content %}
+<div class="auth-bg">
+  <div class="auth-card" style="width:420px;">
+    <h1 class="auth-title">Daftar Akun</h1>
+    <p class="auth-subtitle">Buat akun baru untuk menggunakan RAG Chat • Sekolah.</p>
+
+    {# flash message #}
+    {% with messages = get_flashed_messages(with_categories=true) %}
+      {% if messages %}
+        {% for category, msg in messages %}
+          <div class="flash {{ category }}">{{ msg }}</div>
+        {% endfor %}
+      {% endif %}
+    {% endwith %}
+
+    <form method="POST" action="{{ url_for('auth_register') }}">
+      <input name="username" placeholder="Username" required>
+      <input name="email" type="email" placeholder="Email" required>
+      <input name="password" type="password" placeholder="Password" minlength="6" required>
+      <input name="confirm" type="password" placeholder="Konfirmasi Password" minlength="6" required>
+      <button class="btn" type="submit">Daftar</button>
+    </form>
+
+    <p class="muted">Sudah punya akun? <a href="{{ url_for('auth_login') }}">Masuk</a></p>
+  </div>
+</div>
+{% endblock %}