:root {
    --page-background: #171717;
    --panel-background: #242424;
    --panel-border: #414141;
    --text-color: #f4f4f4;
    --muted-text: #bdbdbd;
    --accent-color: #c9a227;
    --accent-hover: #e4bc3e;
    --field-background: #111111;
    --preview-color: #ff0000;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 28px 16px 60px;
    background: var(--page-background);
    color: var(--text-color);
    font-family: Arial, Helvetica, sans-serif;
}

.order-page {
    width: min(1180px, 100%);
    margin: 0 auto;
}

.page-heading {
    margin: 0 0 24px;
    text-align: center;
    color: var(--accent-color);
}

.checkout-kicker { margin: 0 0 8px; color: #ffb955; font: 800 11px 'Outfit', sans-serif; letter-spacing: .12em; text-transform: uppercase; }
.checkout-status { display: flex; flex-wrap: wrap; gap: 10px; margin: -16px 0 28px; }
.status-pill { padding: 7px 12px; border-radius: 999px; color: var(--muted-text); background: rgba(53,35,62,.86); border: 1px solid rgba(255,255,255,.1); font-size: 12px; font-weight: 700; }
.status-pill strong { color: #ffb955; }

.order-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(340px, 0.8fr);
    gap: 28px;
    align-items: start;
}

.panel {
    padding: 22px;
    background: var(--panel-background);
    border: 1px solid var(--panel-border);
    border-radius: 14px;
    box-shadow: 0 12px 34px rgba(0, 0, 0, 0.28);
}

.panel h2,
.panel h3 {
    margin-top: 0;
    color: var(--accent-color);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.field.full-width {
    grid-column: 1 / -1;
}

label {
    font-weight: 700;
}

.field-note {
    margin: 0;
    color: var(--muted-text);
    font-size: 0.85rem;
}

input,
select,
textarea,
button {
    font: inherit;
}

input,
select,
textarea {
    width: 100%;
    padding: 11px 12px;
    color: var(--text-color);
    background: var(--field-background);
    border: 1px solid #555555;
    border-radius: 8px;
}

input[type="color"] {
    min-height: 48px;
    padding: 5px;
    cursor: pointer;
}

textarea {
    min-height: 110px;
    resize: vertical;
}

.section-divider {
    grid-column: 1 / -1;
    height: 1px;
    margin: 4px 0;
    background: #444444;
    border: 0;
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

button {
    padding: 12px 18px;
    border: 0;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
}

.primary-button {
    color: #111111;
    background: var(--accent-color);
}

.primary-button:hover {
    background: var(--accent-hover);
}

.secondary-button {
    color: #ffffff;
    background: #444444;
}

.secondary-button:hover {
    background: #595959;
}

button:disabled {
    cursor: wait;
    opacity: 0.65;
}

.preview-panel {
    position: sticky;
    top: 20px;
    overflow: hidden;
}

.preview-panel.is-stopped {
    position: static;
    top: auto;
}

.preview-instructions {
    margin: -4px 0 20px;
    color: var(--muted-text);
    line-height: 1.45;
}

.preview-window {
    display: flex;
    justify-content: center;
    min-height: 390px;
    margin-bottom: 18px;
    padding: 115px 0 40px;
    overflow: hidden;
    perspective: 1000px;
}

.preview-scale {
    position: relative;
    width: 360px;
    height: 180px;
}

#previewEnvelope {
    position: relative;
    width: 600px;
    height: 300px;
    transform: scale(0.6);
    transform-origin: top left;
    transform-style: preserve-3d;
}

.preview-envelope-block {
    background: var(--preview-color);
    border: 2px solid rgba(255, 255, 255, 0.22);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.48);
}

#previewBase {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
    background: #2a2a2a;
}

#previewMessage {
    width: 100%;
    color: var(--accent-color);
    font-size: 28px;
    font-weight: 700;
    line-height: 1.25;
    text-align: center;
    overflow-wrap: anywhere;
    white-space: pre-wrap;
}

#previewTopFlapWrap {
    position: absolute;
    inset: 0;
    z-index: 10;
    transform: translateZ(20px);
    transform-style: preserve-3d;
}

#previewTopFlap {
    position: absolute;
    inset: 0;
    transform: rotateX(0deg);
    transform-origin: top center;
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

#previewTopFlap.open {
    transform: rotateX(180deg);
}

.preview-flap-face {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.preview-flap-face.front {
    z-index: 2;
    transform: rotateX(0deg);
}

.preview-flap-face.back {
    transform: rotateX(180deg);
}

.preview-logo {
    max-width: 75%;
    max-height: 75%;
    object-fit: contain;
}

.preview-product-image {
    max-width: 85%;
    max-height: 85%;
    object-fit: contain;
}

#previewBottomFlapWrap {
    position: absolute;
    bottom: 0;
    left: 0;
    z-index: 15;
    width: 100%;
    height: 33.33%;
    transform: translateZ(30px);
    transform-style: preserve-3d;
}

#previewBottomFlap {
    position: absolute;
    inset: 0;
    transform: rotateX(0deg);
    transform-origin: bottom center;
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 0 0 8px 8px;
}

#previewBottomFlap.open {
    transform: rotateX(-180deg);
}

.preview-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.preview-status {
    min-height: 22px;
    margin: 14px 0 0;
    color: var(--muted-text);
    font-size: 0.9rem;
    text-align: center;
}

@media (max-width: 900px) {
    .order-layout {
        grid-template-columns: 1fr;
    }

    .preview-panel {
        position: static;
    }
}

@media (max-width: 620px) {
    .form-grid {
        grid-template-columns: 1fr;
    }

    .field.full-width,
    .section-divider {
        grid-column: auto;
    }

    .preview-window {
        min-height: 290px;
        padding-top: 85px;
    }

    .preview-scale {
        width: 300px;
        height: 150px;
    }

    #previewEnvelope {
        transform: scale(0.5);
    }
}