feat: mobile-responsive layout

- Sidebar: burger menu on mobile, slide-in overlay
- Kanban: tab selector + vertical cards on mobile
- Move task buttons (← →) on mobile instead of drag
- Login: full-width on small screens
- Header: padding for burger button

src/app/(protected)/projects/[slug]/page.tsx

@@ -32,7 +32,7 @@ export default function ProjectPage() {
     <div className="flex h-screen">
       <Sidebar projects={projects} activeSlug={slug} />
       <main className="flex-1 flex flex-col overflow-hidden">
-        <header className="border-b border-[var(--border)] px-6 py-4 flex items-center gap-4">
+        <header className="border-b border-[var(--border)] px-6 py-4 flex items-center gap-4 pl-14 md:pl-6">
           <div>
             <h1 className="text-xl font-bold">{project.name}</h1>
             {project.description && (

src/app/login/page.tsx

@@ -35,7 +35,7 @@ export default function LoginPage() {
 
   return (
     <div className="flex h-screen items-center justify-center">
-      <form onSubmit={handleSubmit} className="w-80">
+      <form onSubmit={handleSubmit} className="w-full max-w-80 px-4">
         <h1 className="text-3xl font-bold mb-1 text-center">Team Board</h1>
         <p className="text-[var(--muted)] mb-6 text-center text-sm">AI Agent Collaboration Platform</p>
 

src/components/KanbanBoard.tsx

@@ -28,6 +28,7 @@ export default function KanbanBoard({ projectId }: Props) {
   const [newTaskTitle, setNewTaskTitle] = useState("");
   const [addingTo, setAddingTo] = useState<string | null>(null);
   const [draggedTask, setDraggedTask] = useState<string | null>(null);
+  const [activeColumn, setActiveColumn] = useState<string | null>(null);
 
   const loadTasks = async () => {
     try {
@@ -47,14 +48,22 @@ export default function KanbanBoard({ projectId }: Props) {
     const task = tasks.find((t) => t.id === draggedTask);
     if (!task || task.status === status) return;
 
-    // Optimistic update
     setTasks((prev) => prev.map((t) => (t.id === draggedTask ? { ...t, status } : t)));
     setDraggedTask(null);
 
     try {
       await updateTask(draggedTask, { status });
     } catch {
-      loadTasks(); // revert
+      loadTasks();
+    }
+  };
+
+  const handleMoveTask = async (taskId: string, newStatus: string) => {
+    setTasks((prev) => prev.map((t) => (t.id === taskId ? { ...t, status: newStatus } : t)));
+    try {
+      await updateTask(taskId, { status: newStatus });
+    } catch {
+      loadTasks();
     }
   };
 
@@ -78,8 +87,108 @@ export default function KanbanBoard({ projectId }: Props) {
     return <div className="flex items-center justify-center h-64 text-[var(--muted)]">Загрузка...</div>;
   }
 
+  // Mobile: column selector + vertical list
+  // Desktop: horizontal kanban
   return (
-    <div className="flex gap-4 overflow-x-auto p-4 h-full">
+    <div className="h-full flex flex-col">
+      {/* Mobile column tabs */}
+      <div className="md:hidden flex overflow-x-auto border-b border-[var(--border)] px-2 py-1 gap-1 shrink-0">
+        {COLUMNS.map((col) => {
+          const count = tasks.filter((t) => t.status === col.key).length;
+          return (
+            <button
+              key={col.key}
+              onClick={() => setActiveColumn(col.key)}
+              className={`flex items-center gap-1.5 px-3 py-1.5 rounded-full text-xs whitespace-nowrap shrink-0 transition-colors
+                ${(activeColumn || "draft") === col.key
+                  ? "bg-white/10 text-[var(--fg)]"
+                  : "text-[var(--muted)]"
+                }`}
+            >
+              <span className="w-2 h-2 rounded-full" style={{ background: col.color }} />
+              {col.label}
+              {count > 0 && <span className="text-[var(--muted)]">{count}</span>}
+            </button>
+          );
+        })}
+      </div>
+
+      {/* Mobile: single column view */}
+      <div className="md:hidden flex-1 overflow-y-auto p-3">
+        {(() => {
+          const col = COLUMNS.find((c) => c.key === (activeColumn || "draft"))!;
+          const colTasks = tasks.filter((t) => t.status === col.key);
+          const colIndex = COLUMNS.findIndex((c) => c.key === col.key);
+          return (
+            <div className="flex flex-col gap-2">
+              {colTasks.map((task) => (
+                <div
+                  key={task.id}
+                  className="bg-[var(--card)] border border-[var(--border)] rounded-lg p-3"
+                >
+                  <div className="flex items-start gap-2">
+                    <div
+                      className="w-2 h-2 rounded-full mt-1.5 shrink-0"
+                      style={{ background: PRIORITY_COLORS[task.priority] || "#737373" }}
+                    />
+                    <span className="text-sm flex-1">{task.title}</span>
+                  </div>
+                  {task.description && (
+                    <p className="text-xs text-[var(--muted)] mt-1 ml-4">{task.description}</p>
+                  )}
+                  {/* Move buttons */}
+                  <div className="flex gap-1 mt-2 ml-4">
+                    {colIndex > 0 && (
+                      <button
+                        onClick={() => handleMoveTask(task.id, COLUMNS[colIndex - 1].key)}
+                        className="text-xs px-2 py-0.5 rounded bg-white/5 text-[var(--muted)]
+                                   hover:text-[var(--fg)]"
+                      >
+                        ← {COLUMNS[colIndex - 1].label}
+                      </button>
+                    )}
+                    {colIndex < COLUMNS.length - 1 && (
+                      <button
+                        onClick={() => handleMoveTask(task.id, COLUMNS[colIndex + 1].key)}
+                        className="text-xs px-2 py-0.5 rounded bg-white/5 text-[var(--muted)]
+                                   hover:text-[var(--fg)]"
+                      >
+                        {COLUMNS[colIndex + 1].label} →
+                      </button>
+                    )}
+                  </div>
+                </div>
+              ))}
+
+              {addingTo === col.key ? (
+                <input
+                  autoFocus
+                  className="w-full bg-[var(--card)] border border-[var(--border)] rounded-lg px-3 py-2
+                             text-sm outline-none focus:border-[var(--accent)]"
+                  placeholder="Название задачи..."
+                  value={newTaskTitle}
+                  onChange={(e) => setNewTaskTitle(e.target.value)}
+                  onKeyDown={(e) => {
+                    if (e.key === "Enter") handleAddTask(col.key);
+                    if (e.key === "Escape") setAddingTo(null);
+                  }}
+                  onBlur={() => !newTaskTitle.trim() && setAddingTo(null)}
+                />
+              ) : (
+                <button
+                  className="text-sm text-[var(--muted)] hover:text-[var(--fg)] py-2"
+                  onClick={() => setAddingTo(col.key)}
+                >
+                  + Добавить задачу
+                </button>
+              )}
+            </div>
+          );
+        })()}
+      </div>
+
+      {/* Desktop: horizontal kanban */}
+      <div className="hidden md:flex gap-4 overflow-x-auto p-4 flex-1">
         {COLUMNS.map((col) => {
           const colTasks = tasks.filter((t) => t.status === col.key);
           return (
@@ -89,14 +198,12 @@ export default function KanbanBoard({ projectId }: Props) {
               onDragOver={(e) => e.preventDefault()}
               onDrop={() => handleDrop(col.key)}
             >
-            {/* Column header */}
               <div className="flex items-center gap-2 mb-3 px-1">
                 <div className="w-3 h-3 rounded-full" style={{ background: col.color }} />
                 <span className="font-semibold text-sm">{col.label}</span>
                 <span className="text-xs text-[var(--muted)] ml-auto">{colTasks.length}</span>
               </div>
 
-            {/* Cards */}
               <div className="flex flex-col gap-2 flex-1 min-h-[100px] rounded-lg bg-[var(--bg)] p-2">
                 {colTasks.map((task) => (
                   <div
@@ -120,9 +227,7 @@ export default function KanbanBoard({ projectId }: Props) {
                   </div>
                 ))}
 
-              {/* Add task */}
                 {addingTo === col.key ? (
-                <div className="mt-1">
                   <input
                     autoFocus
                     className="w-full bg-[var(--card)] border border-[var(--border)] rounded px-2 py-1.5
@@ -134,11 +239,8 @@ export default function KanbanBoard({ projectId }: Props) {
                       if (e.key === "Enter") handleAddTask(col.key);
                       if (e.key === "Escape") setAddingTo(null);
                     }}
-                    onBlur={() => {
-                      if (!newTaskTitle.trim()) setAddingTo(null);
-                    }}
+                    onBlur={() => !newTaskTitle.trim() && setAddingTo(null)}
                   />
-                </div>
                 ) : (
                   <button
                     className="text-xs text-[var(--muted)] hover:text-[var(--fg)] mt-1 text-left px-2 py-1"
@@ -152,5 +254,6 @@ export default function KanbanBoard({ projectId }: Props) {
           );
         })}
       </div>
+    </div>
   );
 }

src/components/Sidebar.tsx

@@ -1,7 +1,9 @@
 "use client";
 
+import { useState } from "react";
 import Link from "next/link";
 import { Project } from "@/lib/api";
+import { logout } from "@/lib/auth-client";
 
 interface Props {
   projects: Project[];
@@ -9,22 +11,30 @@ interface Props {
 }
 
 export default function Sidebar({ projects, activeSlug }: Props) {
-  return (
-    <aside className="w-60 shrink-0 border-r border-[var(--border)] h-screen flex flex-col bg-[var(--card)]">
-      {/* Logo */}
-      <div className="p-4 border-b border-[var(--border)]">
+  const [open, setOpen] = useState(false);
+
+  const nav = (
+    <>
+      <div className="p-4 border-b border-[var(--border)] flex items-center justify-between">
         <Link href="/" className="text-lg font-bold tracking-tight">
           Team Board
         </Link>
+        {/* Close button on mobile */}
+        <button
+          className="md:hidden text-[var(--muted)] hover:text-[var(--fg)] text-xl"
+          onClick={() => setOpen(false)}
+        >
+          ✕
+        </button>
       </div>
 
-      {/* Projects */}
       <nav className="flex-1 overflow-y-auto p-2">
         <div className="text-xs uppercase text-[var(--muted)] px-2 py-1 mb-1">Проекты</div>
         {projects.map((p) => (
           <Link
             key={p.id}
             href={`/projects/${p.slug}`}
+            onClick={() => setOpen(false)}
             className={`block px-3 py-2 rounded text-sm transition-colors ${
               activeSlug === p.slug
                 ? "bg-[var(--accent)]/10 text-[var(--accent)]"
@@ -36,10 +46,47 @@ export default function Sidebar({ projects, activeSlug }: Props) {
         ))}
       </nav>
 
-      {/* Footer */}
-      <div className="p-3 border-t border-[var(--border)] text-xs text-[var(--muted)]">
-        Team Board v0.1
+      <div className="p-3 border-t border-[var(--border)] flex items-center justify-between">
+        <span className="text-xs text-[var(--muted)]">Team Board v0.1</span>
+        <button
+          onClick={logout}
+          className="text-xs text-[var(--muted)] hover:text-[var(--fg)]"
+        >
+          Выйти
+        </button>
       </div>
+    </>
+  );
+
+  return (
+    <>
+      {/* Mobile hamburger */}
+      <button
+        className="md:hidden fixed top-3 left-3 z-40 p-2 bg-[var(--card)] border border-[var(--border)]
+                   rounded-lg text-[var(--fg)]"
+        onClick={() => setOpen(true)}
+      >
+        <svg width="20" height="20" viewBox="0 0 20 20" fill="currentColor">
+          <path d="M2 4.5h16M2 10h16M2 15.5h16" stroke="currentColor" strokeWidth="1.5" fill="none" />
+        </svg>
+      </button>
+
+      {/* Mobile overlay */}
+      {open && (
+        <div className="md:hidden fixed inset-0 bg-black/60 z-40" onClick={() => setOpen(false)} />
+      )}
+
+      {/* Sidebar: always visible on desktop, slide-in on mobile */}
+      <aside
+        className={`
+          fixed md:static z-50 top-0 left-0 h-screen w-60 shrink-0
+          border-r border-[var(--border)] bg-[var(--card)] flex flex-col
+          transition-transform duration-200
+          ${open ? "translate-x-0" : "-translate-x-full md:translate-x-0"}
+        `}
+      >
+        {nav}
       </aside>
+    </>
   );
 }