diff --git a/ht_booking/assets/views/admin/booking_form.html b/ht_booking/assets/views/admin/booking_form.html
index eff56be..52f0bac 100644
--- a/ht_booking/assets/views/admin/booking_form.html
+++ b/ht_booking/assets/views/admin/booking_form.html
@@ -10,54 +10,57 @@
     <h1 class="text-2xl font-bold">
       {% if mode == "edit" %}{{ t(key="edit-booking", lang=lang) }}{% else %}{{ t(key="add-booking", lang=lang) }}{% endif %}
     </h1>
-    <a href="/admin" class="text-sm text-blue-600 hover:underline">&larr; {{ t(key="back-to-calendar", lang=lang) }}</a>
+    <a href="/admin" class="btn btn-ghost btn-sm">« {{ t(key="back-to-calendar", lang=lang) }}</a>
   </div>
 
-  <form method="post" action="{{ action }}" class="space-y-3 rounded-lg border bg-white p-4">
-    <input type="hidden" name="court_id" value="{{ court_id }}">
-    <div class="text-sm text-gray-600">{{ t(key="court-label", lang=lang) }}: <strong>{{ court_name }}</strong></div>
-    <div>
-      <label class="block text-sm text-gray-600">{{ t(key="date", lang=lang) }}</label>
-      <input type="date" name="date" value="{{ date }}" required class="w-full rounded border-gray-300 text-sm">
+  <div class="card border border-gray-200 bg-white shadow-sm">
+    <div class="card-body">
+      <form method="post" action="{{ action }}" class="space-y-2">
+        <input type="hidden" name="court_id" value="{{ court_id }}">
+        <div class="text-sm text-gray-600">
+          {{ t(key="court-label", lang=lang) }}: <strong>{{ court_name }}</strong>
+        </div>
+        <div class="form-control">
+          <label class="label"><span class="label-text">{{ t(key="date", lang=lang) }}</span></label>
+          <input type="date" name="date" value="{{ date }}" required class="input input-bordered w-full">
+        </div>
+        <div class="form-control">
+          <label class="label"><span class="label-text">{{ t(key="hour", lang=lang) }}</span></label>
+          <select name="hour" class="select select-bordered w-full">
+            {% for h in hours %}
+            <option value="{{ h.v }}" {% if h.v == hour %}selected{% endif %}>{{ h.label }}</option>
+            {% endfor %}
+          </select>
+        </div>
+        <div class="form-control">
+          <label class="label"><span class="label-text">{{ t(key="booking-color", lang=lang) }}</span></label>
+          <input type="color" name="color" value="{{ color }}"
+            class="h-10 w-20 cursor-pointer rounded border border-gray-300">
+        </div>
+        <div class="form-control">
+          <label class="label"><span class="label-text">{{ t(key="booking-name", lang=lang) }}</span></label>
+          <input name="name" value="{{ name }}" required class="input input-bordered w-full">
+        </div>
+        <div class="form-control">
+          <label class="label"><span class="label-text">{{ t(key="booking-contact", lang=lang) }}</span></label>
+          <input name="contact" value="{{ contact }}" class="input input-bordered w-full">
+        </div>
+        <div class="form-control">
+          <label class="label"><span class="label-text">{{ t(key="booking-note", lang=lang) }}</span></label>
+          <textarea name="note" rows="3" class="textarea textarea-bordered w-full">{{ note }}</textarea>
+        </div>
+        <div class="flex items-center gap-2 pt-2">
+          <button class="btn btn-neutral">{{ t(key="save", lang=lang) }}</button>
+          <a href="/admin" class="btn btn-ghost">{{ t(key="cancel", lang=lang) }}</a>
+        </div>
+      </form>
     </div>
-    <div>
-      <label class="block text-sm text-gray-600">{{ t(key="hour", lang=lang) }}</label>
-      <select name="hour" class="w-full rounded border-gray-300 text-sm">
-        {% for h in hours %}
-        <option value="{{ h.v }}" {% if h.v == hour %}selected{% endif %}>{{ h.label }}</option>
-        {% endfor %}
-      </select>
-    </div>
-    <div>
-      <label class="block text-sm text-gray-600">{{ t(key="booking-color", lang=lang) }}</label>
-      <input type="color" name="color" value="{{ color }}" class="h-9 w-16 rounded border-gray-300">
-    </div>
-    <div>
-      <label class="block text-sm text-gray-600">{{ t(key="booking-name", lang=lang) }}</label>
-      <input name="name" value="{{ name }}" required class="w-full rounded border-gray-300 text-sm">
-    </div>
-    <div>
-      <label class="block text-sm text-gray-600">{{ t(key="booking-contact", lang=lang) }}</label>
-      <input name="contact" value="{{ contact }}" class="w-full rounded border-gray-300 text-sm">
-    </div>
-    <div>
-      <label class="block text-sm text-gray-600">{{ t(key="booking-note", lang=lang) }}</label>
-      <textarea name="note" rows="3" class="w-full rounded border-gray-300 text-sm">{{ note }}</textarea>
-    </div>
-    <div class="flex items-center gap-2">
-      <button class="rounded bg-gray-900 px-4 py-2 text-sm text-white hover:bg-gray-700">
-        {{ t(key="save", lang=lang) }}
-      </button>
-      <a href="/admin" class="rounded border px-4 py-2 text-sm hover:bg-gray-100">{{ t(key="cancel", lang=lang) }}</a>
-    </div>
-  </form>
+  </div>
 
   {% if mode == "edit" %}
   <form method="post" action="/admin/booking/{{ booking_id }}/delete" class="mt-3"
     onsubmit="return confirm('{{ t(key="confirm-delete", lang=lang) }}');">
-    <button class="rounded bg-red-600 px-4 py-2 text-sm text-white hover:bg-red-700">
-      {{ t(key="delete", lang=lang) }}
-    </button>
+    <button class="btn btn-outline btn-error btn-sm">{{ t(key="delete", lang=lang) }}</button>
   </form>
   {% endif %}
 </div>
diff --git a/ht_booking/assets/views/admin/courts.html b/ht_booking/assets/views/admin/courts.html
index b860c79..42e9ab7 100644
--- a/ht_booking/assets/views/admin/courts.html
+++ b/ht_booking/assets/views/admin/courts.html
@@ -5,36 +5,42 @@
 {% block content %}
 <div class="mb-4 flex items-center justify-between">
   <h1 class="text-2xl font-bold">{{ t(key="manage-courts", lang=lang) }}</h1>
-  <a href="/admin" class="text-sm text-blue-600 hover:underline">&larr; {{ t(key="back-to-calendar", lang=lang) }}</a>
+  <a href="/admin" class="btn btn-ghost btn-sm">« {{ t(key="back-to-calendar", lang=lang) }}</a>
 </div>
 
 {% if name_error %}
-<div class="mb-3 rounded bg-red-100 px-3 py-2 text-sm text-red-700">{{ t(key="court-delete-error", lang=lang) }}</div>
+<div class="alert alert-error mb-4">
+  <span>{{ t(key="court-delete-error", lang=lang) }}</span>
+</div>
 {% endif %}
 
-<div class="mb-6 overflow-auto rounded-lg border bg-white">
-  <table class="w-full text-sm">
+<div class="mb-6 overflow-x-auto rounded-lg border border-gray-200 bg-white shadow-sm">
+  <table class="table">
     <thead>
-      <tr class="bg-gray-100 text-left">
-        <th class="p-2">{{ t(key="court-name", lang=lang) }}</th>
-        <th class="p-2">{{ t(key="court-surface", lang=lang) }}</th>
-        <th class="p-2">{{ t(key="court-indoor", lang=lang) }}</th>
-        <th class="p-2">{{ t(key="court-remove", lang=lang) }}</th>
+      <tr>
+        <th>{{ t(key="court-name", lang=lang) }}</th>
+        <th>{{ t(key="court-surface", lang=lang) }}</th>
+        <th>{{ t(key="court-indoor", lang=lang) }}</th>
+        <th class="text-right">{{ t(key="court-remove", lang=lang) }}</th>
       </tr>
     </thead>
     <tbody>
       {% for c in courts %}
-      <tr class="border-t">
-        <td class="p-2">{{ c.name }}</td>
-        <td class="p-2">{{ c.surface }}</td>
-        <td class="p-2">{{ c.indoor }}</td>
-        <td class="p-2">
-          <form method="post" action="/admin/courts/{{ c.id }}/delete"
+      <tr>
+        <td class="font-medium">{{ c.name }}</td>
+        <td>{{ c.surface }}</td>
+        <td>
+          {% if c.indoor %}
+          <span class="badge badge-success badge-sm">✓</span>
+          {% else %}
+          <span class="badge badge-ghost badge-sm">—</span>
+          {% endif %}
+        </td>
+        <td class="text-right">
+          <form method="post" action="/admin/courts/{{ c.id }}/delete" class="inline"
             data-court-name="{{ c.name }}" onsubmit="return promptCourtDelete(this);">
             <input type="hidden" name="confirm_name">
-            <button class="rounded bg-red-600 px-3 py-1 text-sm text-white hover:bg-red-700">
-              {{ t(key="delete", lang=lang) }}
-            </button>
+            <button class="btn btn-error btn-sm">{{ t(key="delete", lang=lang) }}</button>
           </form>
         </td>
       </tr>
@@ -43,24 +49,27 @@
   </table>
 </div>
 
-<div class="max-w-md rounded-lg border bg-white p-4">
-  <h2 class="mb-3 font-semibold">{{ t(key="add-court", lang=lang) }}</h2>
-  <form method="post" action="/admin/courts" class="space-y-3">
-    <div>
-      <label class="block text-sm text-gray-600">{{ t(key="court-name", lang=lang) }}</label>
-      <input name="name" required class="w-full rounded border-gray-300 text-sm">
-    </div>
-    <div>
-      <label class="block text-sm text-gray-600">{{ t(key="court-surface", lang=lang) }}</label>
-      <input name="surface" class="w-full rounded border-gray-300 text-sm">
-    </div>
-    <label class="flex items-center gap-2 text-sm">
-      <input type="checkbox" name="indoor" value="1"> {{ t(key="court-indoor", lang=lang) }}
-    </label>
-    <button class="rounded bg-gray-900 px-4 py-2 text-sm text-white hover:bg-gray-700">
-      {{ t(key="add-court", lang=lang) }}
-    </button>
-  </form>
+<div class="card max-w-md border border-gray-200 bg-white shadow-sm">
+  <div class="card-body">
+    <h2 class="card-title text-base">{{ t(key="add-court", lang=lang) }}</h2>
+    <form method="post" action="/admin/courts" class="space-y-2">
+      <div class="form-control">
+        <label class="label"><span class="label-text">{{ t(key="court-name", lang=lang) }}</span></label>
+        <input name="name" required class="input input-bordered w-full">
+      </div>
+      <div class="form-control">
+        <label class="label"><span class="label-text">{{ t(key="court-surface", lang=lang) }}</span></label>
+        <input name="surface" class="input input-bordered w-full">
+      </div>
+      <div class="form-control">
+        <label class="label cursor-pointer justify-start gap-3">
+          <input type="checkbox" name="indoor" value="1" class="checkbox checkbox-sm">
+          <span class="label-text">{{ t(key="court-indoor", lang=lang) }}</span>
+        </label>
+      </div>
+      <button class="btn btn-neutral mt-1">{{ t(key="add-court", lang=lang) }}</button>
+    </form>
+  </div>
 </div>
 {% endblock content %}
 
diff --git a/ht_booking/assets/views/admin/login.html b/ht_booking/assets/views/admin/login.html
index 7db5f88..f068ce3 100644
--- a/ht_booking/assets/views/admin/login.html
+++ b/ht_booking/assets/views/admin/login.html
@@ -3,23 +3,27 @@
 {% block title %}{{ t(key="login-title", lang=lang) }}{% endblock title %}
 
 {% block content %}
-<div class="mx-auto mt-8 max-w-sm rounded-lg border bg-white p-6">
-  <h1 class="mb-4 text-xl font-bold">{{ t(key="login-title", lang=lang) }}</h1>
-  {% if error %}
-  <div class="mb-3 rounded bg-red-100 px-3 py-2 text-sm text-red-700">{{ t(key="login-error", lang=lang) }}</div>
-  {% endif %}
-  <form method="post" action="/admin/login" class="space-y-3">
-    <div>
-      <label class="block text-sm text-gray-600">{{ t(key="email", lang=lang) }}</label>
-      <input type="email" name="email" required class="w-full rounded border-gray-300 text-sm">
+<div class="mx-auto mt-8 max-w-sm">
+  <div class="card border border-gray-200 bg-white shadow-sm">
+    <div class="card-body">
+      <h1 class="card-title">{{ t(key="login-title", lang=lang) }}</h1>
+      {% if error %}
+      <div class="alert alert-error">
+        <span>{{ t(key="login-error", lang=lang) }}</span>
+      </div>
+      {% endif %}
+      <form method="post" action="/admin/login" class="space-y-2">
+        <div class="form-control">
+          <label class="label"><span class="label-text">{{ t(key="email", lang=lang) }}</span></label>
+          <input type="email" name="email" required class="input input-bordered w-full">
+        </div>
+        <div class="form-control">
+          <label class="label"><span class="label-text">{{ t(key="password", lang=lang) }}</span></label>
+          <input type="password" name="password" required class="input input-bordered w-full">
+        </div>
+        <button class="btn btn-neutral mt-2 w-full">{{ t(key="login-button", lang=lang) }}</button>
+      </form>
     </div>
-    <div>
-      <label class="block text-sm text-gray-600">{{ t(key="password", lang=lang) }}</label>
-      <input type="password" name="password" required class="w-full rounded border-gray-300 text-sm">
-    </div>
-    <button class="w-full rounded bg-gray-900 py-2 text-sm text-white hover:bg-gray-700">
-      {{ t(key="login-button", lang=lang) }}
-    </button>
-  </form>
+  </div>
 </div>
 {% endblock content %}
diff --git a/ht_booking/assets/views/base.html b/ht_booking/assets/views/base.html
index d5b5a5f..e1396f2 100644
--- a/ht_booking/assets/views/base.html
+++ b/ht_booking/assets/views/base.html
@@ -1,40 +1,45 @@
 <!DOCTYPE html>
-<html lang="{{ lang }}">
+<html lang="{{ lang }}" data-theme="light">
 
 <head>
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
   <title>{% block title %}{{ t(key="brand", lang=lang) }}{% endblock title %}</title>
+  <link href="https://cdn.jsdelivr.net/npm/daisyui@4/dist/full.min.css" rel="stylesheet" type="text/css" />
   <script src="https://cdn.tailwindcss.com"></script>
+  <style>
+    /* Keep buttons static — disable daisyUI's press-shrink animation. */
+    .btn { --animation-btn: 0; --btn-focus-scale: 1; }
+  </style>
   {% block head %}{% endblock head %}
 </head>
 
-<body class="min-h-screen bg-gray-50 text-gray-900 font-sans antialiased">
-  <header class="border-b bg-white">
-    <div class="mx-auto flex max-w-6xl items-center justify-between px-5 py-3">
+<body class="min-h-screen bg-gray-50 font-sans antialiased">
+  <div class="navbar bg-white shadow-sm">
+    <div class="mx-auto flex w-full max-w-6xl flex-wrap items-center justify-between gap-2 px-4">
       <a href="/" class="text-lg font-bold">{{ t(key="brand", lang=lang) }}</a>
-      <nav class="flex items-center gap-4 text-sm">
-        <a href="/" class="hover:underline">{{ t(key="nav-calendar", lang=lang) }}</a>
+      <nav class="flex flex-wrap items-center gap-1">
+        <a href="/" class="btn btn-ghost btn-sm">{{ t(key="nav-calendar", lang=lang) }}</a>
         {% if logged_in | default(value=false) %}
-        <a href="/admin" class="hover:underline">{{ t(key="admin-title", lang=lang) }}</a>
-        <a href="/admin/courts" class="hover:underline">{{ t(key="manage-courts", lang=lang) }}</a>
-        <form method="post" action="/admin/logout" class="inline">
-          <button class="hover:underline">{{ t(key="logout", lang=lang) }}</button>
+        <a href="/admin" class="btn btn-ghost btn-sm">{{ t(key="admin-title", lang=lang) }}</a>
+        <a href="/admin/courts" class="btn btn-ghost btn-sm">{{ t(key="manage-courts", lang=lang) }}</a>
+        <form method="post" action="/admin/logout">
+          <button class="btn btn-ghost btn-sm">{{ t(key="logout", lang=lang) }}</button>
         </form>
         {% else %}
-        <a href="/admin/login" class="hover:underline">{{ t(key="nav-admin", lang=lang) }}</a>
+        <a href="/admin/login" class="btn btn-ghost btn-sm">{{ t(key="nav-admin", lang=lang) }}</a>
         {% endif %}
-        <span class="flex gap-1">
+        <div class="join ml-1">
           <button onclick="setLang('en')"
-            class="rounded px-2 py-0.5 {% if lang == 'en' %}bg-gray-900 text-white{% else %}bg-gray-200{% endif %}">EN</button>
+            class="btn btn-xs join-item {% if lang == 'en' %}btn-neutral{% endif %}">EN</button>
           <button onclick="setLang('sk')"
-            class="rounded px-2 py-0.5 {% if lang == 'sk' %}bg-gray-900 text-white{% else %}bg-gray-200{% endif %}">SK</button>
-        </span>
+            class="btn btn-xs join-item {% if lang == 'sk' %}btn-neutral{% endif %}">SK</button>
+        </div>
       </nav>
     </div>
-  </header>
+  </div>
 
-  <main class="mx-auto max-w-6xl px-5 py-6">
+  <main class="mx-auto max-w-6xl px-4 py-6">
     {% block content %}{% endblock content %}
   </main>
 
diff --git a/ht_booking/assets/views/calendar/week.html b/ht_booking/assets/views/calendar/week.html
index a02c026..6261e93 100644
--- a/ht_booking/assets/views/calendar/week.html
+++ b/ht_booking/assets/views/calendar/week.html
@@ -9,9 +9,9 @@
   </h1>
   {% if has_courts %}
   <form method="get" action="{{ base_path }}" class="flex items-center gap-2">
-    <label class="text-sm text-gray-600">{{ t(key="court-label", lang=lang) }}</label>
+    <label class="text-sm font-medium text-gray-600">{{ t(key="court-label", lang=lang) }}</label>
     <input type="hidden" name="week" value="{{ week }}">
-    <select name="court" onchange="this.form.submit()" class="rounded border-gray-300 text-sm">
+    <select name="court" onchange="this.form.submit()" class="select select-bordered select-sm">
       {% for c in courts %}
       <option value="{{ c.id }}" {% if c.selected %}selected{% endif %}>{{ c.name }}</option>
       {% endfor %}
@@ -22,26 +22,26 @@
 
 {% if has_courts %}
 <div class="mb-3 flex flex-wrap items-center justify-between gap-2">
-  <div class="flex gap-2">
+  <div class="join">
     <a href="{{ base_path }}?court={{ court_id }}&week={{ prev_week }}"
-      class="rounded border bg-white px-3 py-1 text-sm hover:bg-gray-100">&larr; {{ t(key="prev-week", lang=lang) }}</a>
+      class="btn btn-sm join-item">« {{ t(key="prev-week", lang=lang) }}</a>
     <a href="{{ base_path }}?court={{ court_id }}&week={{ this_week }}"
-      class="rounded border bg-white px-3 py-1 text-sm hover:bg-gray-100">{{ t(key="this-week", lang=lang) }}</a>
+      class="btn btn-sm join-item">{{ t(key="this-week", lang=lang) }}</a>
     <a href="{{ base_path }}?court={{ court_id }}&week={{ next_week }}"
-      class="rounded border bg-white px-3 py-1 text-sm hover:bg-gray-100">{{ t(key="next-week", lang=lang) }} &rarr;</a>
+      class="btn btn-sm join-item">{{ t(key="next-week", lang=lang) }} »</a>
   </div>
-  <div class="text-sm font-medium text-gray-600">{{ court_name }} · {{ week_label }}</div>
+  <div class="text-sm font-medium text-gray-500">{{ court_name }} · {{ week_label }}</div>
 </div>
 
-<div class="overflow-auto rounded-lg border bg-white">
+<div class="overflow-x-auto rounded-lg border border-gray-200 bg-white shadow-sm">
   <table class="w-full border-collapse text-sm">
     <thead>
       <tr class="bg-gray-100">
-        <th class="w-16 border p-2"></th>
+        <th class="w-16 border border-gray-200 p-2"></th>
         {% for d in days %}
-        <th class="border p-2 text-center">
+        <th class="border border-gray-200 p-2 text-center">
           <div class="font-semibold">{{ t(key=d.key, lang=lang) }}</div>
-          <div class="text-xs font-normal text-gray-500">{{ d.num }}</div>
+          <div class="text-xs font-normal text-gray-400">{{ d.num }}</div>
         </th>
         {% endfor %}
       </tr>
@@ -49,24 +49,24 @@
     <tbody>
       {% for row in rows %}
       <tr>
-        <td class="border p-2 text-center font-medium text-gray-500">{{ row.hour_label }}</td>
+        <td class="border border-gray-200 bg-gray-50 p-2 text-center font-medium text-gray-500">{{ row.hour_label }}</td>
         {% for cell in row.cells %}
-        <td class="h-14 border p-1 align-top">
+        <td class="h-14 border border-gray-200 p-1 align-top">
           {% if cell.booked %}
             {% if is_admin %}
           <a href="/admin/booking/{{ cell.booking_id }}"
-            class="block h-full rounded px-1 py-1 text-xs font-medium text-white"
+            class="block h-full rounded px-1 py-1 text-xs font-medium text-white shadow-sm transition hover:opacity-90"
             style="background-color: {{ cell.color }}">{{ cell.name }}</a>
             {% else %}
-          <div class="h-full rounded px-1 py-1 text-xs font-medium text-white"
+          <div class="h-full rounded px-1 py-1 text-xs font-medium text-white shadow-sm"
             style="background-color: {{ cell.color }}" title="{{ cell.name }}">{{ t(key="booked", lang=lang) }}</div>
             {% endif %}
           {% else %}
             {% if is_admin %}
           <a href="/admin/booking?court={{ court_id }}&date={{ cell.date }}&hour={{ cell.hour }}"
-            class="block h-full rounded px-1 py-1 text-xs text-gray-400 hover:bg-gray-100">+</a>
+            class="flex h-full items-center justify-center rounded text-lg text-gray-300 transition hover:bg-gray-100 hover:text-gray-500">+</a>
             {% else %}
-          <div class="h-full px-1 py-1 text-xs text-gray-300">{{ t(key="free", lang=lang) }}</div>
+          <div class="px-1 py-1 text-xs text-gray-300">{{ t(key="free", lang=lang) }}</div>
             {% endif %}
           {% endif %}
         </td>
@@ -77,6 +77,8 @@
   </table>
 </div>
 {% else %}
-<div class="rounded-lg border bg-white p-8 text-center text-gray-500">{{ t(key="no-courts", lang=lang) }}</div>
+<div class="card border border-gray-200 bg-white shadow-sm">
+  <div class="card-body items-center text-center text-gray-500">{{ t(key="no-courts", lang=lang) }}</div>
+</div>
 {% endif %}
 {% endblock content %}