body {
    margin: 0;
    background:
        radial-gradient(circle at top left, rgba(14, 165, 233, 0.1), transparent 28%),
        linear-gradient(180deg, #eef3f9 0%, #e4ebf4 100%);
    color: #142332;
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
}

.abw-builder-page {
    max-width: 1680px;
    margin: 0 auto;
    padding: 16px;
}

.abw-builder-hero {
    display: grid;
    gap: 12px;
    padding: 18px 20px;
    border-radius: 14px;
    background:
        linear-gradient(135deg, rgba(8, 47, 73, 0.95), rgba(17, 94, 89, 0.94)),
        linear-gradient(90deg, #12324a, #0f766e);
    color: #f4fbff;
    box-shadow: 0 20px 50px rgba(8, 47, 73, 0.24);
}

.abw-builder-hero h1 {
    margin: 0;
    font-size: clamp(1.9rem, 3vw, 3.1rem);
    line-height: 1.05;
}

.abw-builder-hero p {
    max-width: 860px;
    margin: 8px 0 0;
    font-size: 1rem;
    line-height: 1.45;
    color: rgba(244, 251, 255, 0.86);
}

.abw-builder-hero__hint {
    max-width: 1100px;
    margin-top: 2px;
    font-size: 0.95rem;
    color: rgba(244, 251, 255, 0.92);
}

.abw-builder-hero__eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.72rem;
    color: #7dd3fc;
}

.abw-builder-hero__facts {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.abw-builder-hero__facts span {
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 0.82rem;
    background: rgba(255, 255, 255, 0.1);
}

.abw-builder-layout {
    display: grid;
    grid-template-columns: minmax(380px, 0.98fr) minmax(420px, 1.22fr);
    gap: 14px;
    margin-top: 14px;
    align-items: start;
}

.abw-builder-sidebar,
.abw-builder-main {
    display: grid;
    gap: 14px;
}

.abw-panel {
    padding: 14px 14px 15px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.84);
    border: 1px solid rgba(20, 35, 50, 0.08);
    box-shadow: 0 14px 36px rgba(20, 35, 50, 0.08);
    backdrop-filter: blur(14px);
}

.abw-panel--collapsible {
    padding: 0;
    overflow: hidden;
}

.abw-panel__summary {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 14px 15px;
    cursor: pointer;
    list-style: none;
}

.abw-panel__summary::-webkit-details-marker {
    display: none;
}

.abw-panel__summary::marker {
    display: none;
}

.abw-panel__summary:hover {
    background: rgba(239, 246, 252, 0.56);
}

.abw-panel__summary-icon {
    flex: 0 0 auto;
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    color: #4c6175;
    background: rgba(224, 236, 245, 0.9);
    transition: transform 0.18s ease;
}

.abw-panel--collapsible[open] .abw-panel__summary-icon {
    transform: rotate(180deg);
}

.abw-panel__body {
    padding: 0 14px 15px;
    border-top: 1px solid rgba(20, 35, 50, 0.08);
}

.abw-panel__head h2,
.abw-panel__head h3,
.abw-option-group h3 {
    margin: 0;
}

.abw-panel__head h3 {
    font-size: 1rem;
}

.abw-panel__head p {
    margin: 6px 0 0;
    color: #4c6175;
    font-size: 0.92rem;
    line-height: 1.4;
}

.abw-panel__head--compact {
    margin-top: 10px;
}

.abw-field-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 12px;
}

.abw-field-grid--stack {
    grid-template-columns: 1fr;
}

.abw-display-layout {
    display: grid;
    grid-template-columns: minmax(280px, 1fr) minmax(280px, 1fr);
    gap: 14px;
    margin-top: 12px;
    align-items: start;
}

.abw-display-column {
    display: grid;
    gap: 10px;
}

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

.abw-field--display-preset {
    margin-top: 12px;
    max-width: 360px;
}

.abw-field {
    display: grid;
    gap: 6px;
    font-size: 0.92rem;
}

.abw-field span {
    font-weight: 700;
}

.abw-field small {
    color: #4c6175;
}

.abw-field input[type="search"],
.abw-field input[type="text"],
.abw-field input[type="datetime-local"],
.abw-field select,
.abw-field textarea {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid rgba(76, 97, 117, 0.24);
    border-radius: 8px;
    padding: 8px 10px;
    font: inherit;
    background: rgba(255, 255, 255, 0.92);
}

.abw-field textarea {
    min-height: 220px;
    resize: vertical;
    font-family: "Consolas", "Liberation Mono", monospace;
    font-size: 0.85rem;
}

.abw-field input[type="range"] {
    width: 100%;
}

.abw-field--toggle {
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border: 1px solid rgba(76, 97, 117, 0.16);
    border-radius: 8px;
    background: rgba(236, 244, 250, 0.72);
}

.abw-field--subtoggle {
    margin-left: 26px;
    background: rgba(224, 236, 245, 0.78);
}

.abw-field--subtoggle.is-disabled {
    opacity: 0.58;
}

.abw-field--stack {
    margin-top: 10px;
}

.abw-button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.abw-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    border: 1px solid rgba(20, 35, 50, 0.18);
    padding: 8px 12px;
    font: inherit;
    font-weight: 700;
    color: #16324a;
    background: rgba(255, 255, 255, 0.88);
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.abw-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 18px rgba(20, 35, 50, 0.1);
}

.abw-button--primary {
    border-color: rgba(8, 47, 73, 0.12);
    background: linear-gradient(135deg, #0f766e, #0ea5e9);
    color: #fff;
}

.abw-selection-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-top: 12px;
    padding: 4px;
    border-radius: 10px;
    background: rgba(224, 236, 245, 0.92);
    border: 1px solid rgba(76, 97, 117, 0.18);
}

.abw-selection-tab {
    min-height: 42px;
    border: 1px solid transparent;
    border-radius: 8px;
    font: inherit;
    font-size: 0.95rem;
    font-weight: 800;
    color: #294156;
    background: transparent;
    cursor: pointer;
}

.abw-selection-tab:hover {
    background: rgba(255, 255, 255, 0.62);
}

.abw-selection-tab.is-active {
    color: #fff;
    background: #0f766e;
    border-color: rgba(8, 47, 73, 0.12);
    box-shadow: 0 8px 18px rgba(15, 118, 110, 0.22);
}

.abw-selection-tools {
    display: grid;
    gap: 10px;
    margin-top: 12px;
}

.abw-selection-tabpanel[hidden] {
    display: none;
}

.abw-option-groups {
    display: grid;
    gap: 12px;
    margin-top: 12px;
}

.abw-option-group {
    display: grid;
    gap: 8px;
}

.abw-option-group--compact {
    gap: 4px;
}

.abw-option-group--compact h3 {
    font-size: 0.82rem;
    line-height: 1.2;
    color: #4c6175;
}

.abw-option-group.is-empty {
    display: none;
}

.abw-option-list {
    max-height: 320px;
    overflow: auto;
    padding: 6px;
    border-radius: 10px;
    border: 1px solid rgba(76, 97, 117, 0.16);
    background: rgba(239, 246, 252, 0.8);
}

.abw-option-groups--compact {
    gap: 8px;
    padding: 6px;
    border-radius: 10px;
    border: 1px solid rgba(76, 97, 117, 0.16);
    background: rgba(239, 246, 252, 0.8);
}

.abw-option-list--compact {
    max-height: none;
    overflow: visible;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
}

.abw-option {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px;
    align-items: center;
    padding: 7px 8px;
    border-radius: 8px;
}

.abw-option--compact {
    gap: 6px;
    padding: 3px 5px;
    border-radius: 5px;
    font-size: 0.82rem;
    line-height: 1.2;
}

.abw-option--compact input {
    width: 14px;
    height: 14px;
    margin: 0;
}

.abw-option--compact span {
    overflow-wrap: anywhere;
}

.abw-option:hover {
    background: rgba(255, 255, 255, 0.7);
}

.abw-option.is-hidden {
    display: none;
}

.abw-alpha-preview {
    display: grid;
    gap: 8px;
    padding: 10px 12px;
    border: 1px solid rgba(76, 97, 117, 0.16);
    border-radius: 10px;
    background: rgba(239, 246, 252, 0.8);
}

.abw-alpha-preview small {
    color: #4c6175;
}

.abw-alpha-preview__pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.abw-alpha-preview__pill {
    min-width: 84px;
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
}

.abw-preview-frame {
    width: 100%;
    display: block;
    height: 180px;
    min-height: 0;
    border: 1px solid rgba(76, 97, 117, 0.18);
    border-radius: 0;
    background: #fff;
}

.abw-diagnostics {
    display: grid;
    gap: 10px;
    margin-top: 10px;
}

.abw-diagnostics__placeholder {
    padding: 10px;
    border-radius: 10px;
    background: rgba(239, 246, 252, 0.8);
    color: #4c6175;
}

.abw-diagnostics__summary {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
}

.abw-stat {
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(236, 244, 250, 0.8);
}

.abw-stat strong {
    display: block;
    font-size: 1.34rem;
    margin-bottom: 2px;
}

.abw-stat span {
    color: #4c6175;
    font-size: 0.9rem;
}

.abw-diagnostics__details {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.abw-card {
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(239, 246, 252, 0.8);
}

.abw-card h3 {
    margin: 0 0 10px;
    font-size: 1rem;
}

.abw-card ul {
    margin: 0;
    padding-left: 18px;
    color: #294156;
}

.abw-link-box {
    display: grid;
    gap: 10px;
    margin-top: 12px;
}

.abw-link-box a {
    color: #0b5cab;
    word-break: break-all;
    font-weight: 700;
}

.abw-qrcode {
    min-height: 240px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin-top: 12px;
}

.abw-qrcode > div {
    padding: 10px;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 10px 24px rgba(20, 35, 50, 0.08);
}

.abw-legend {
    display: grid;
    gap: 8px;
    margin-top: 12px;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(239, 246, 252, 0.8);
}

.abw-legend__item {
    display: grid;
    grid-template-columns: 24px 1fr;
    gap: 10px;
    align-items: start;
    color: #294156;
}

.abw-legend__icon {
    margin-top: 3px;
}

.abw-legend__icon--green {
    color: #148a2a;
}

.abw-legend__icon--red {
    color: #c61b1b;
}

.abw-legend__icon--orange {
    color: #d87a00;
}

.abw-legend__icon--leave {
    color: #8b1111;
}

@media (max-width: 1220px) {
    .abw-builder-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .abw-builder-page {
        padding: 12px;
    }

    .abw-builder-sidebar,
    .abw-builder-main {
        display: contents;
    }

    .abw-panel--operator {
        order: 1;
    }

    .abw-panel--presets {
        order: 2;
    }

    .abw-panel--test-time {
        order: 3;
    }

    .abw-panel--preview {
        order: 4;
    }

    .abw-panel--display {
        order: 5;
    }

    .abw-selection-panel {
        order: 6;
    }

    .abw-panel--legend {
        order: 7;
    }

    .abw-panel--link {
        order: 8;
    }

    .abw-builder-hero {
        padding: 14px;
        border-radius: 10px;
    }

    .abw-field-grid,
    .abw-diagnostics__summary,
    .abw-diagnostics__details {
        grid-template-columns: 1fr;
    }

    .abw-display-layout {
        grid-template-columns: 1fr;
    }

    .abw-field--subtoggle {
        margin-left: 0;
    }

    .abw-panel {
        padding: 12px;
        border-radius: 10px;
    }

    .abw-panel--collapsible {
        padding: 0;
    }

}