:root {
    --text: #333;
    --muted: #666;
    --border: #d8d8d8;
    --bg-soft: #f8f8f8;
    --bg-footer: #f1f1f1;
    --error-bg: #fff2f2;
    --error-border: #d36b6b;
    --success-bg: #f2fbf4;
    --success-border: #5ca76a;
}

* {
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: #fff;
    color: var(--text);
    margin: 0;
    padding: 0;
    line-height: 1.5;
}

header {
    background: var(--bg-soft);
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid #ececec;
}

header img {
    max-width: 250px;
    height: auto;
}

main {
    max-width: 900px;
    margin: auto;
    padding: 28px 20px 40px;
}

footer {
    text-align: center;
    padding: 20px;
    background: var(--bg-footer);
    font-size: 0.9em;
    color: var(--muted);
}

footer a {
    color: var(--muted);
    margin: 0 8px;
}

h2 {
    margin-top: 0;
    font-size: 1.55rem;
}

h3 {
    margin-bottom: 0.5rem;
}

.card {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin: 20px 0;
}

label {
    display: block;
    font-weight: bold;
}

label span {
    color: #9b0000;
    margin-left: 3px;
}

input[type="email"],
input[type="text"],
input[type="number"],
textarea {
    width: 100%;
    display: block;
    margin-top: 6px;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 10px 12px;
    font: inherit;
    background: #fff;
}

textarea {
    resize: vertical;
}

button,
.secondary-button {
    display: inline-block;
    border: 0;
    border-radius: 6px;
    padding: 11px 18px;
    font: inherit;
    font-weight: bold;
    text-decoration: none;
    cursor: pointer;
}

button {
    background: #333;
    color: #fff;
}

button:hover,
button:focus {
    background: #111;
}

.secondary-button {
    background: #efefef;
    color: #333;
}

.secondary-button:hover,
.secondary-button:focus {
    background: #e0e0e0;
}

.alert {
    border-radius: 8px;
    padding: 14px 16px;
    margin-bottom: 20px;
}

.alert ul {
    margin: 8px 0 0;
    padding-left: 22px;
}

.alert-error {
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    color: #751919;
}

.success-card {
    background: var(--success-bg);
    border-color: var(--success-border);
}

.order-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px 18px;
    background: var(--bg-soft);
    border: 1px solid #e8e8e8;
    border-radius: 8px;
    padding: 12px 14px;
    margin: 18px 0 22px;
}

.order-summary p {
    margin: 0;
}

.item-list {
    display: grid;
    gap: 12px;
    margin-bottom: 20px;
}

.item-card {
    display: grid;
    grid-template-columns: auto 1fr minmax(150px, 210px);
    gap: 14px;
    align-items: center;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px;
    font-weight: normal;
}

.item-card:hover {
    background: #fafafa;
}

.item-card input[type="checkbox"] {
    width: 20px;
    height: 20px;
}

.item-title {
    display: block;
    font-weight: bold;
}

.item-meta {
    display: block;
    color: var(--muted);
    font-size: 0.92rem;
    margin-top: 2px;
}

.quantity-field {
    font-weight: bold;
    font-size: 0.9rem;
}

.quantity-field input {
    max-width: 110px;
}

.full-width {
    margin-top: 6px;
}

.full-width em {
    color: var(--muted);
    font-weight: normal;
}

.note {
    color: var(--muted);
    font-size: 0.94rem;
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    margin-top: 18px;
}

@media (max-width: 760px) {
    main {
        padding: 20px 14px 32px;
    }

    .form-grid,
    .order-summary,
    .item-card {
        grid-template-columns: 1fr;
    }

    .item-card input[type="checkbox"] {
        justify-self: start;
    }
}