/* The login and generator pages. */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: #f3f4f6;
    font-family: system-ui, sans-serif;
    line-height: 1.5;
}

h1 {
    margin: 0;
    font-size: 1.5rem;
    line-height: 2rem;
    font-weight: 700;
    color: #1f2937;
}

label {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
}

input,
select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    box-shadow: 0 1px 2px rgb(0 0 0 / 5%);
    font: inherit;
}

input:focus,
select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 2px #3b82f6;
}

button {
    width: 100%;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.375rem;
    background: #2563eb;
    color: #fff;
    font: inherit;
    cursor: pointer;
    transition: background-color 0.15s;
}

button:hover {
    background: #1d4ed8;
}

button:focus {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

form > * + * {
    margin-top: 1rem;
}

.card {
    padding: 1.5rem;
    border-radius: 0.5rem;
    background: #fff;
    box-shadow:
        0 4px 6px -1px rgb(0 0 0 / 10%),
        0 2px 4px -2px rgb(0 0 0 / 10%);
}

.error {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    border: 1px solid #f87171;
    border-radius: 0.25rem;
    background: #fee2e2;
    color: #b91c1c;
}

/* Login page: the card centred on the screen. */

.login {
    display: flex;
    align-items: center;
    justify-content: center;
}

.login .card {
    width: 100%;
    max-width: 28rem;
    padding: 2rem;
}

.login h1 {
    margin-bottom: 1.5rem;
    text-align: center;
}

/* Generator page. */

.page {
    max-width: 42rem;
    margin: 0 auto;
    padding: 2rem 1rem;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

header a {
    font-size: 0.875rem;
    color: #4b5563;
}

header a:hover {
    color: #1f2937;
}

.result {
    margin-bottom: 1.5rem;
    padding: 1rem;
    border: 1px solid #bbf7d0;
    border-radius: 0.5rem;
    background: #f0fdf4;
}

.result h2 {
    margin: 0 0 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #166534;
}

.result div {
    display: flex;
    gap: 0.5rem;
}

.result input {
    flex: 1;
    border-color: #86efac;
    box-shadow: none;
    font-family: ui-monospace, monospace;
    font-size: 0.875rem;
}

.result button {
    width: auto;
    padding: 0.5rem 0.75rem;
    background: #16a34a;
    font-size: 0.875rem;
}

.result button:hover {
    background: #15803d;
}

.result p {
    margin: 0.5rem 0 0;
    font-size: 0.75rem;
    color: #16a34a;
}

.columns {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.note {
    margin-top: 1rem;
    font-size: 0.75rem;
    color: #6b7280;
    text-align: center;
}