* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', sans-serif; background: #dfe6e9; display: flex; justify-content: center; align-items: center; min-height: 100vh; }
.container { background: #fff; padding: 30px; border-radius: 12px; box-shadow: 0 5px 20px rgba(0,0,0,0.1); width: 400px; }
h1 { color: #2d3436; text-align: center; margin-bottom: 25px; }
.form-container { display: flex; flex-direction: column; gap: 15px; margin-bottom: 25px; }
input { padding: 12px; border: 1px solid #b2bec3; border-radius: 6px; font-size: 15px; outline: none; }
input:focus { border-color: #0984e3; }
button { padding: 12px; background: #0984e3; color: white; border: none; border-radius: 6px; cursor: pointer; font-size: 16px; font-weight: bold; transition: 0.3s; }
button:hover { background: #74b9ff; }
.contact-list { list-style: none; }
.contact-item { display: flex; justify-content: space-between; align-items: center; background: #f5f6fa; padding: 15px; border-radius: 6px; margin-bottom: 10px; border-left: 5px solid #0984e3; }
.contact-info { display: flex; flex-direction: column; }
.contact-name { font-weight: bold; color: #2d3436; }
.contact-phone { color: #636e72; font-size: 14px; margin-top: 5px; }
.delete-btn { background: #d63031; padding: 8px 12px; width: auto; font-size: 14px; }
.delete-btn:hover { background: #ff7675; }