html,
body {
    min-height: 100%;
}

body {
    overflow-x: hidden;
    overflow-y: auto;
}

.popup-builder-page {
    min-height: 100vh;
    padding: 32px;
    background:
        radial-gradient(circle at top left, rgba(0, 230, 255, 0.12), transparent 28%),
        radial-gradient(circle at top right, rgba(168, 85, 247, 0.12), transparent 26%),
        linear-gradient(180deg, #07111d 0%, #040912 100%);
    color: var(--text-main);
    box-sizing: border-box;
}

.popup-builder-hero {
    max-width: 1400px;
    margin: 0 auto 24px;
}

.popup-builder-hero-top {
    display: flex;
    align-items: baseline;
    justify-content: flex-start;
    gap: 18px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.popup-builder-hero h1 {
    margin: 0;
    font-size: clamp(2rem, 5vw, 3.2rem);
}

.popup-builder-hero p {
    margin: 0;
    max-width: 760px;
    color: var(--text-muted);
    line-height: 1.6;
}

.popup-builder-back {
    color: #a855f7;
    text-decoration: none;
    font-weight: 700;
    white-space: nowrap;
}

.popup-builder-back:hover {
    color: #ffffff;
}

.popup-builder-layout {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
    gap: 24px;
    align-items: start;
}

.popup-builder-editor,
.popup-builder-preview-panel {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.popup-builder-card {
    padding: 22px;
    border: 1px solid rgba(0, 230, 255, 0.18);
    border-radius: 18px;
    background: rgba(13, 23, 38, 0.92);
    box-shadow: 0 18px 38px rgba(0, 0, 0, 0.34);
}

.popup-builder-card > h2,
.popup-builder-json-header h2,
.popup-builder-preview-header h2 {
    margin: 0 0 8px;
    color: var(--accent);
}

.popup-builder-note {
    margin: 0 0 18px;
    color: var(--text-muted);
    line-height: 1.55;
}

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

.popup-builder-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.popup-builder-field span {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.popup-builder-field input,
.popup-builder-field textarea,
.popup-builder-field select {
    width: 100%;
    min-width: 0;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #07111d;
    color: var(--text-main);
    box-sizing: border-box;
    font: inherit;
}

.popup-builder-color-field {
    justify-content: flex-end;
}

.popup-builder-color-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.popup-builder-field input[type="color"] {
    width: 56px;
    min-width: 56px;
    height: 44px;
    padding: 4px;
    border-radius: 10px;
    cursor: pointer;
    background: #07111d;
}

.popup-builder-field input[type="color"]:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.popup-builder-default-toggle {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text-main);
    font-size: 0.92rem;
    font-weight: 600;
}

.popup-builder-default-toggle input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin: 0;
    accent-color: var(--accent);
}

.popup-builder-field textarea {
    resize: vertical;
}

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

.popup-builder-checkbox {
    justify-content: flex-end;
}

.popup-builder-checkbox input {
    width: 22px;
    height: 22px;
    padding: 0;
    align-self: flex-start;
    accent-color: var(--accent);
}

.popup-builder-json-header {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: flex-start;
}

.popup-builder-copy-status {
    min-height: 1.2em;
    margin: 0 0 10px;
    color: var(--success);
    font-size: 0.9rem;
}

.popup-builder-json-output {
    margin: 0;
    padding: 18px;
    border-radius: 14px;
    background: #040912;
    border: 1px solid rgba(168, 85, 247, 0.18);
    color: #d8f6ff;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
    font: 0.92rem/1.55 "Courier New", Courier, monospace;
}

.popup-builder-preview-card {
    position: sticky;
    top: 24px;
}

.popup-builder-preview-header {
    margin-bottom: 16px;
}

.popup-builder-preview-stage {
    padding: 18px;
    border-radius: 18px;
    background:
        radial-gradient(circle at top, rgba(0, 230, 255, 0.12), transparent 45%),
        linear-gradient(180deg, #050b14 0%, #0b1220 100%);
    border: 1px solid rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

.popup-builder-preview-window {
    width: 100%;
    max-height: none;
}

.popup-builder-preview-window .xp-popup-body {
    overflow: visible;
}

.popup-builder-help {
    margin-top: 16px;
    color: var(--text-muted);
    line-height: 1.6;
}

.popup-builder-help strong {
    display: block;
    margin-bottom: 8px;
    color: var(--text-main);
}

.popup-builder-help p {
    margin: 0 0 8px;
}

.popup-builder-help code {
    padding: 2px 6px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--accent);
    font-family: "Courier New", Courier, monospace;
}

@media (max-width: 1080px) {
    .popup-builder-layout {
        grid-template-columns: 1fr;
    }

    .popup-builder-preview-card {
        position: static;
    }
}

@media (max-width: 720px) {
    .popup-builder-page {
        padding: 18px;
    }

    .popup-builder-hero-top {
        gap: 10px 14px;
    }

    .popup-builder-grid {
        grid-template-columns: 1fr;
    }

    .popup-builder-json-header {
        flex-direction: column;
    }

    .popup-builder-preview-stage {
        padding: 10px;
    }
}