diff --git a/plugins/files/frontend/src/index.js b/plugins/files/frontend/src/index.js
index ae39fcf..09c692d 100644
--- a/plugins/files/frontend/src/index.js
+++ b/plugins/files/frontend/src/index.js
@@ -36,7 +36,7 @@
     '.files-breadcrumb-sep{color:var(--vt-color-text-muted,#7f8aa3)}',
     '.files-filter,.files-sort,.files-create-input,.files-rename-input{font-size:.78rem;padding:.32rem .5rem;border:1px solid var(--vt-color-border-strong,#2c456a);border-radius:var(--vt-radius-sm,4px);background:#0f1424;color:var(--vt-color-text-primary,#f4f7fb);outline:none}',
     '.files-filter{width:11rem}',
-    '.files-sort{width:9.5rem;appearance:none;background-color:#0f1424;background-image:linear-gradient(45deg,transparent 50%,#8b8ba8 50%),linear-gradient(135deg,#8b8ba8 50%,transparent 50%);background-position:calc(100% - 14px) 50%,calc(100% - 9px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:1.6rem}',
+    '.files-sort{width:9.5rem;appearance:none;background-color:#0f1424;background-image:linear-gradient(45deg,transparent 50%,#8b8ba8 50%),linear-gradient(135deg,#8b8ba8 50%,transparent 50%);background-position:calc(100% - 14px) 50%,calc(100% - 9px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:1.6rem}.files-sort option{background:#0f1424;color:var(--vt-color-text-primary,#f4f7fb)}',
     '.files-filter:focus,.files-sort:focus,.files-create-input:focus,.files-rename-input:focus{border-color:var(--vt-color-accent,#4ecca3);box-shadow:var(--vt-focus-ring,0 0 0 2px rgba(78,204,163,.34))}',
     '.files-list{flex:1;overflow:auto;min-height:0}',
     '.files-header,.files-item{display:grid;grid-template-columns:minmax(160px,1fr) 90px 90px 150px 220px;align-items:center;gap:.5rem;padding:.38rem .75rem;border-bottom:1px solid rgba(22,33,62,.55)}',
diff --git a/plugins/notes/frontend/src/index.js b/plugins/notes/frontend/src/index.js
index f1feb15..5013921 100644
--- a/plugins/notes/frontend/src/index.js
+++ b/plugins/notes/frontend/src/index.js
@@ -25,7 +25,7 @@
     '.notes-btn.primary:hover{background:#63d9b3;color:#101827}',
     '.notes-filter,.notes-sort{font-size:.78rem;padding:.32rem .5rem;border:1px solid var(--vt-color-border-strong,#2c456a);border-radius:var(--vt-radius-sm,4px);background:#0f1424;color:var(--vt-color-text-primary,#f4f7fb);outline:none}',
     '.notes-filter{width:11rem}',
-    '.notes-sort{width:8rem;appearance:none;background-color:#0f1424;background-image:linear-gradient(45deg,transparent 50%,#8b8ba8 50%),linear-gradient(135deg,#8b8ba8 50%,transparent 50%);background-position:calc(100% - 14px) 50%,calc(100% - 9px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:1.6rem}',
+    '.notes-sort{width:8rem;appearance:none;background-color:#0f1424;background-image:linear-gradient(45deg,transparent 50%,#8b8ba8 50%),linear-gradient(135deg,#8b8ba8 50%,transparent 50%);background-position:calc(100% - 14px) 50%,calc(100% - 9px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:1.6rem}.notes-sort option{background:#0f1424;color:var(--vt-color-text-primary,#f4f7fb)}',
     '.notes-filter:focus,.notes-sort:focus{border-color:var(--vt-color-accent,#4ecca3);box-shadow:var(--vt-focus-ring,0 0 0 2px rgba(78,204,163,.34))}',
     '.notes-list{flex:1;overflow:auto;min-height:0}',
     '.notes-item{display:flex;align-items:center;gap:.5rem;padding:.5rem .75rem;border-bottom:1px solid rgba(32,43,70,.72);cursor:pointer;font-size:.85rem}',
diff --git a/plugins/secrets/frontend/src/index.js b/plugins/secrets/frontend/src/index.js
index df17129..e8094ba 100644
--- a/plugins/secrets/frontend/src/index.js
+++ b/plugins/secrets/frontend/src/index.js
@@ -45,7 +45,7 @@
     '.secrets-row{display:grid;grid-template-columns:8rem minmax(0,1fr);gap:.65rem;align-items:center}',
     '.secrets-label{font-size:.78rem;color:var(--vt-color-text-muted,#7f8aa3)}',
     '.secrets-input,.secrets-textarea,.secrets-select{width:100%;box-sizing:border-box;border:1px solid var(--vt-color-border-strong,#2c456a);border-radius:var(--vt-radius-sm,4px);background:#0f1424;color:var(--vt-color-text-primary,#f4f7fb);font:inherit;font-size:.84rem;padding:.45rem .55rem;outline:none}',
-    '.secrets-select{appearance:none;background-color:#0d1117;background-image:linear-gradient(45deg,transparent 50%,#8b949e 50%),linear-gradient(135deg,#8b949e 50%,transparent 50%);background-position:calc(100% - 16px) 50%,calc(100% - 11px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:2rem}',
+    '.secrets-select{appearance:none;background-color:#0d1117;background-image:linear-gradient(45deg,transparent 50%,#8b949e 50%),linear-gradient(135deg,#8b949e 50%,transparent 50%);background-position:calc(100% - 16px) 50%,calc(100% - 11px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:2rem}.secrets-select option{background:#0d1117;color:var(--vt-color-text-primary,#f4f7fb)}',
     '.secrets-textarea{min-height:6rem;resize:vertical;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}',
     '.secrets-input:focus,.secrets-textarea:focus,.secrets-select:focus{border-color:var(--vt-color-accent,#4ecca3);box-shadow:var(--vt-focus-ring,0 0 0 2px rgba(78,204,163,.34))}',
     '.secrets-actions{display:flex;gap:.5rem;flex-wrap:wrap}',
diff --git a/plugins/todo/frontend/src/index.js b/plugins/todo/frontend/src/index.js
index 4b2e3b0..dfece9f 100644
--- a/plugins/todo/frontend/src/index.js
+++ b/plugins/todo/frontend/src/index.js
@@ -17,8 +17,8 @@
     '.todo-toolbar{display:flex;align-items:center;gap:.5rem;min-height:2.75rem;padding:.5rem .75rem;border-bottom:1px solid var(--vt-color-border,#202b46);background:var(--vt-color-surface-muted,#111629);flex-wrap:wrap;flex-shrink:0}',
     '.todo-title{font-size:.86rem;font-weight:600}.todo-count,.todo-status,.todo-scope{font-size:.72rem;color:var(--vt-color-text-muted,#7f8aa3)}.todo-spacer{flex:1}',
     '.todo-filters{display:flex;align-items:center;gap:.35rem;min-width:0;flex:1;flex-wrap:wrap}',
-    '.todo-input,.todo-select{box-sizing:border-box;min-height:1.9rem;border:1px solid var(--vt-color-border-strong,#2c456a);border-radius:var(--vt-radius-sm,4px);background:var(--vt-color-surface,#15152c);color:var(--vt-color-text-primary,#f4f7fb);font:inherit;font-size:.78rem;padding:.32rem .45rem}',
-    '.todo-input.search{width:min(15rem,100%)}.todo-input.textarea{min-height:6.5rem;resize:vertical;line-height:1.4}.todo-select{max-width:12rem}',
+    '.todo-input,.todo-select{box-sizing:border-box;min-height:1.9rem;border:1px solid var(--vt-color-border-strong,#2c456a);border-radius:var(--vt-radius-sm,4px);background:var(--vt-color-surface,#15152c);color:var(--vt-color-text-primary,#f4f7fb);color-scheme:dark;font:inherit;font-size:.78rem;padding:.32rem .45rem}',
+    '.todo-input.search{width:min(15rem,100%)}.todo-input.textarea{min-height:6.5rem;resize:vertical;line-height:1.4}.todo-select{max-width:12rem;appearance:none;background-color:var(--vt-color-surface,#15152c);background-image:linear-gradient(45deg,transparent 50%,var(--vt-color-text-muted,#7f8aa3) 50%),linear-gradient(135deg,var(--vt-color-text-muted,#7f8aa3) 50%,transparent 50%);background-position:calc(100% - 14px) 50%,calc(100% - 9px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:1.7rem}.todo-select option{background:var(--vt-color-surface,#15152c);color:var(--vt-color-text-primary,#f4f7fb)}',
     '.todo-btn{min-height:1.9rem;padding:.32rem .62rem;border:1px solid var(--vt-color-border-strong,#2c456a);border-radius:var(--vt-radius-md,6px);background:var(--vt-color-surface-hover,#1b2440);color:var(--vt-color-text-secondary,#b7c0d4);font-size:.78rem;cursor:pointer}.todo-btn:hover{border-color:var(--vt-color-accent,#4ecca3);color:var(--vt-color-text-primary,#f4f7fb)}.todo-btn.primary{background:var(--vt-color-accent,#4ecca3);border-color:var(--vt-color-accent,#4ecca3);color:#101827}.todo-btn.danger{border-color:rgba(233,69,96,.5);color:#ff9a9a}.todo-btn:disabled{opacity:.45;cursor:default}',
     '.todo-list{flex:1;min-height:0;overflow:auto;padding:.5rem .75rem .85rem}.todo-empty{height:100%;display:flex;align-items:center;justify-content:center;padding:2rem;text-align:center;color:var(--vt-color-text-muted,#7f8aa3);font-size:.86rem}',
     '.todo-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.75rem;align-items:start;margin-top:.5rem;padding:.75rem .85rem;border:1px solid var(--vt-color-border,#202b46);border-radius:var(--vt-radius-lg,8px);background:var(--vt-color-surface,#15152c)}.todo-row:hover{background:var(--vt-color-surface-hover,#1b2440)}.todo-row.done .todo-row-title{text-decoration:line-through;color:var(--vt-color-text-muted,#7f8aa3)}',
@@ -96,7 +96,28 @@
   }
 
   function cleanDate(value) {
-    return /^\d{4}-\d{2}-\d{2}$/.test(text(value).trim()) ? text(value).trim() : '';
+    value = text(value).trim();
+    if (/^\d{4}-\d{2}-\d{2}$/.test(value)) return value;
+
+    var match = /^(\d{1,2})\/(\d{1,2})\/(\d{4})$/.exec(value);
+    var day;
+    var month;
+    var year;
+    if (match) {
+      month = Number(match[1]);
+      day = Number(match[2]);
+      year = Number(match[3]);
+    } else {
+      match = /^(\d{1,2})\.(\d{1,2})\.(\d{4})$/.exec(value);
+      if (!match) return '';
+      day = Number(match[1]);
+      month = Number(match[2]);
+      year = Number(match[3]);
+    }
+
+    var date = new Date(Date.UTC(year, month - 1, day));
+    if (date.getUTCFullYear() !== year || date.getUTCMonth() !== month - 1 || date.getUTCDate() !== day) return '';
+    return String(year).padStart(4, '0') + '-' + String(month).padStart(2, '0') + '-' + String(day).padStart(2, '0');
   }
 
   function cleanDateTime(value) {
@@ -106,6 +127,18 @@
     return isNaN(date.getTime()) ? '' : value;
   }
 
+  function splitReminderDateTime(value) {
+    var match = /^(\d{4}-\d{2}-\d{2})T(\d{2}:\d{2})/.exec(cleanDateTime(value));
+    return match ? { date: match[1], time: match[2] } : { date: '', time: '' };
+  }
+
+  function joinReminderDateTime(date, time) {
+    date = cleanDate(date);
+    time = text(time).trim();
+    if (!date || !/^\d{2}:\d{2}$/.test(time)) return '';
+    return cleanDateTime(date + 'T' + time);
+  }
+
   function todoId(workspaceRoot, title) {
     return 'todo:' + (cleanWorkspace(workspaceRoot) || 'global') + ':' + Date.now() + ':' + Math.random().toString(36).slice(2, 8) + ':' + text(title).trim().slice(0, 20).replace(/\s+/g, '-');
   }
@@ -413,7 +446,9 @@
       var priorityInput = el('select', { className: 'todo-select', 'data-todo-input': 'priority' }, [option('low', tr('ui.priority.low', null, 'Low')), option('normal', tr('ui.priority.normal', null, 'Normal')), option('high', tr('ui.priority.high', null, 'High'))]);
       priorityInput.value = editing ? existingTodo.priority : 'normal';
       var dueInput = el('input', { className: 'todo-input', type: 'date', value: editing ? existingTodo.dueAt : '', 'data-todo-input': 'dueAt' });
-      var reminderInput = el('input', { className: 'todo-input', type: 'datetime-local', value: editing ? existingTodo.reminderAt : '', 'data-todo-input': 'reminderAt' });
+      var reminder = splitReminderDateTime(editing ? existingTodo.reminderAt : '');
+      var reminderDateInput = el('input', { className: 'todo-input', type: 'date', value: reminder.date, 'data-todo-input': 'reminderDate' });
+      var reminderTimeInput = el('input', { className: 'todo-input', type: 'time', value: reminder.time, 'data-todo-input': 'reminderTime' });
       var workspaceInput = null;
       var workspace = editing ? existingTodo.workspaceRootPath : scope.workspaceRoot;
       if (scope.mode === 'global') {
@@ -444,7 +479,7 @@
           status: editing ? existingTodo.status : 'open',
           priority: priorityInput.value,
           dueAt: dueInput.value,
-          reminderAt: reminderInput.value,
+          reminderAt: joinReminderDateTime(reminderDateInput.value, reminderTimeInput.value),
           createdAt: editing ? existingTodo.createdAt : timestamp,
           updatedAt: timestamp,
           completedAt: editing ? existingTodo.completedAt : '',
@@ -469,7 +504,8 @@
         el('label', { className: 'todo-field wide' }, [tr('ui.field.description', null, 'Description'), descriptionInput]),
         el('label', { className: 'todo-field' }, [tr('ui.field.priority', null, 'Priority'), priorityInput]),
         el('label', { className: 'todo-field' }, [tr('ui.field.due', null, 'Due date'), dueInput]),
-        el('label', { className: 'todo-field' }, [tr('ui.field.reminder', null, 'Reminder'), reminderInput])
+        el('label', { className: 'todo-field' }, [tr('ui.field.reminderDate', null, 'Reminder date'), reminderDateInput]),
+        el('label', { className: 'todo-field' }, [tr('ui.field.reminderTime', null, 'Reminder time'), reminderTimeInput])
       ];
       if (workspaceInput) fields.push(el('label', { className: 'todo-field' }, [tr('ui.field.workspace', null, 'Workspace'), workspaceInput]));
       else fields.push(el('div', { className: 'todo-field', textContent: tr('ui.workspaceValue', { workspace: scope.workspaceRoot }, 'Workspace: ' + scope.workspaceRoot) }));
diff --git a/plugins/todo/locales/en.json b/plugins/todo/locales/en.json
index eed0874..ccf5faa 100644
--- a/plugins/todo/locales/en.json
+++ b/plugins/todo/locales/en.json
@@ -35,6 +35,8 @@
   "ui.field.priority": "Priority",
   "ui.field.due": "Due date",
   "ui.field.reminder": "Reminder",
+  "ui.field.reminderDate": "Reminder date",
+  "ui.field.reminderTime": "Reminder time",
   "ui.field.workspace": "Workspace",
   "ui.workspaceValue": "Workspace: {workspace}",
   "ui.edit": "Edit Todo",
diff --git a/plugins/todo/locales/ru.json b/plugins/todo/locales/ru.json
index 2c6a7e8..7da7902 100644
--- a/plugins/todo/locales/ru.json
+++ b/plugins/todo/locales/ru.json
@@ -35,6 +35,8 @@
   "ui.field.priority": "Приоритет",
   "ui.field.due": "Срок",
   "ui.field.reminder": "Напоминание",
+  "ui.field.reminderDate": "Дата напоминания",
+  "ui.field.reminderTime": "Время напоминания",
   "ui.field.workspace": "Рабочее пространство",
   "ui.workspaceValue": "Рабочее пространство: {workspace}",
   "ui.edit": "Изменить задачу",
diff --git a/plugins/trash/frontend/src/index.js b/plugins/trash/frontend/src/index.js
index 0067147..4641f9b 100644
--- a/plugins/trash/frontend/src/index.js
+++ b/plugins/trash/frontend/src/index.js
@@ -16,7 +16,7 @@
     '.trash-spacer{flex:1}',
     '.trash-control{min-height:2rem;box-sizing:border-box;border:1px solid var(--vt-color-border-strong,#2c456a);border-radius:var(--vt-radius-sm,4px);background:var(--vt-color-surface,#15152c);color:var(--vt-color-text-primary,#f4f7fb);font:inherit;font-size:.78rem;padding:.35rem .5rem}',
     '.trash-search{min-width:12rem;flex:1 1 14rem}',
-    '.trash-select{max-width:11rem}',
+    '.trash-select{max-width:11rem;appearance:none;background-color:var(--vt-color-surface,#15152c);background-image:linear-gradient(45deg,transparent 50%,var(--vt-color-text-muted,#7f8aa3) 50%),linear-gradient(135deg,var(--vt-color-text-muted,#7f8aa3) 50%,transparent 50%);background-position:calc(100% - 14px) 50%,calc(100% - 9px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:1.7rem}.trash-select option{background:var(--vt-color-surface,#15152c);color:var(--vt-color-text-primary,#f4f7fb)}.trash-control:focus{outline:none;border-color:var(--vt-color-accent,#4ecca3);box-shadow:var(--vt-focus-ring,0 0 0 2px rgba(78,204,163,.34))}',
     '.trash-btn{min-height:2rem;border:1px solid var(--vt-color-border-strong,#2c456a);border-radius:var(--vt-radius-sm,4px);background:var(--vt-color-surface-hover,#1b2440);color:var(--vt-color-text-secondary,#b7c0d4);font:inherit;font-size:.78rem;padding:.35rem .6rem;cursor:pointer;white-space:nowrap}',
     '.trash-btn:hover:not(:disabled){border-color:var(--vt-color-accent,#4ecca3);color:var(--vt-color-text-primary,#f4f7fb)}',
     '.trash-btn:disabled{opacity:.48;cursor:default}',
diff --git a/scripts/check-select-styles.js b/scripts/check-select-styles.js
new file mode 100644
index 0000000..a951a79
--- /dev/null
+++ b/scripts/check-select-styles.js
@@ -0,0 +1,34 @@
+#!/usr/bin/env node
+const fs = require('fs');
+const path = require('path');
+
+const root = path.resolve(__dirname, '..');
+const checks = [
+  ['plugins/todo/frontend/src/index.js', '.todo-select'],
+  ['plugins/files/frontend/src/index.js', '.files-sort'],
+  ['plugins/notes/frontend/src/index.js', '.notes-sort'],
+  ['plugins/browser-inbox/frontend/src/index.js', '.browser-inbox-select'],
+  ['plugins/trash/frontend/src/index.js', '.trash-select'],
+  ['plugins/secrets/frontend/src/index.js', '.secrets-select'],
+];
+
+function escapeRegExp(value) {
+  return value.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+}
+
+let failed = false;
+for (const [relativePath, selector] of checks) {
+  const source = fs.readFileSync(path.join(root, relativePath), 'utf8');
+  const escaped = escapeRegExp(selector);
+  if (!new RegExp(`${escaped}\\{[^}]*appearance:none`).test(source)) {
+    console.error(`${relativePath}: ${selector} must hide the native select arrow`);
+    failed = true;
+  }
+  if (!new RegExp(`${escaped} option\\{[^}]*background`).test(source)) {
+    console.error(`${relativePath}: ${selector} options must use the application surface`);
+    failed = true;
+  }
+}
+
+if (failed) process.exit(1);
+console.log('official plugin select styles are complete');
diff --git a/scripts/check.sh b/scripts/check.sh
index 1ceafe6..8412f33 100755
--- a/scripts/check.sh
+++ b/scripts/check.sh
@@ -89,6 +89,18 @@ else
   echo "  ⚠️  node not available — skipping localization catalog validation"
 fi
 
+echo ""
+echo "[select styles]"
+if command -v node &>/dev/null; then
+  set +e
+  node "$ROOT/scripts/check-select-styles.js"
+  STATUS=$?
+  set -e
+  report "selects use application styles" "$STATUS"
+else
+  echo "  ⚠️  node not available — skipping select style validation"
+fi
+
 echo ""
 # Guard official plugins against bypassing the v2 plugin API for note features.
 echo "[frontend API boundary]"
diff --git a/scripts/smoke-todo-plugin.js b/scripts/smoke-todo-plugin.js
index b6c107b..fedb805 100755
--- a/scripts/smoke-todo-plugin.js
+++ b/scripts/smoke-todo-plugin.js
@@ -231,8 +231,13 @@ async function mountWithApi(apiState, props, emittedEvents = [], document = make
   byData(container, 'data-todo-input', 'title').value = 'Prepare project review';
   byData(container, 'data-todo-input', 'description').value = 'Collect factual review notes.';
   byData(container, 'data-todo-input', 'priority').value = 'high';
-  byData(container, 'data-todo-input', 'dueAt').value = '2000-01-01';
-  byData(container, 'data-todo-input', 'reminderAt').value = '2000-01-01T09:00';
+  byData(container, 'data-todo-input', 'dueAt').value = '01/02/2000';
+  const reminderDate = byData(container, 'data-todo-input', 'reminderDate');
+  const reminderTime = byData(container, 'data-todo-input', 'reminderTime');
+  if (!reminderDate || reminderDate.getAttribute('type') !== 'date') throw new Error('Todo reminder date input was not rendered');
+  if (!reminderTime || reminderTime.getAttribute('type') !== 'time') throw new Error('Todo reminder time input was not rendered');
+  reminderDate.value = '01/02/2000';
+  reminderTime.value = '09:00';
   byData(container, 'data-todo-action', 'save').click();
   await flush();
 
@@ -241,7 +246,7 @@ async function mountWithApi(apiState, props, emittedEvents = [], document = make
   const createdTodo = storedAfterCreate[0];
   if (createdTodo.workspaceRootPath !== 'Project') throw new Error('workspace Todo did not keep the Project root path');
   if (createdTodo.status !== 'open' || createdTodo.priority !== 'high') throw new Error('Todo status or priority was not stored');
-  if (createdTodo.dueAt !== '2000-01-01' || createdTodo.reminderAt !== '2000-01-01T09:00') throw new Error('Todo due/reminder metadata was not stored');
+  if (createdTodo.dueAt !== '2000-01-02' || createdTodo.reminderAt !== '2000-01-02T09:00') throw new Error('Todo due/reminder metadata was not stored');
   if (!container.textContent.includes('Overdue') || !container.textContent.includes('Reminder due')) throw new Error('due/reminder indicators were not rendered');
   const scheduledAfterCreate = apiState.notificationCalls.at(-1) || [];
   if (scheduledAfterCreate.length !== 1