* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #f3f4f6;
    color: #374151;
    line-height: 1.5;
}

.flex {
    display: flex;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.h-screen {
    height: 100vh;
}

.bg-white {
    background-color: #fff;
}

.p-8 {
    padding: 2rem;
}

.rounded-lg {
    border-radius: 0.5rem;
}

.shadow-lg {
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.max-w-sm {
    max-width: 24rem;
}

.w-full {
    width: 100%;
}

.mb-4 {
    margin-bottom: 1rem;
}

.mb-6 {
    margin-bottom: 1.5rem;
}

.mb-3 {
    margin-bottom: 0.75rem;
}

.text-2xl {
    font-size: 1.5rem;
}

.text-sm {
    font-size: 0.875rem;
}

.font-bold {
    font-weight: 700;
}

.text-center {
    text-align: center;
}

.block {
    display: block;
}

.text-gray-700 {
    color: #374151;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.shadow {
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.appearance-none {
    appearance: none;
}

.border {
    border-width: 1px;
    border-style: solid;
    border-color: #e5e7eb;
}

.rounded {
    border-radius: 0.25rem;
}

.w-full {
    width: 100%;
}

.py-2 {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.px-3 {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
}

.leading-tight {
    line-height: 1.25;
}

.focus\:outline-none:focus {
    outline: none;
}

.focus\:shadow-outline:focus {
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.5);
}

.bg-blue-500 {
    background-color: #3b82f6;
}

.hover\:bg-blue-700:hover {
    background-color: #1d4ed8;
}

.text-white {
    color: #fff;
}

.py-2 {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.alert {
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border-radius: 0.25rem;
    color: #721c24;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
}

input:focus {
    border-color: #3b82f6;
}

button {
    cursor: pointer;
    transition: background-color 0.2s;
}