#rv-app {
    --navy: #0f2439;
    --navy-2: #16324a;
    --teal: #0d9488;
    --teal-dark: #0b7a70;
    --teal-light: #ccfbf1;
    --bg: #f4f8f8;
    --card: #ffffff;
    --border: #d8e6e4;
    --text: #14262f;
    --text-muted: #4d6470;
    max-width: 1040px;
    margin: 0 auto;
    padding: 24px 16px 48px;
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
}

#rv-app * { box-sizing: border-box; }

.rv-header h2 {
    color: var(--navy);
    margin: 0 0 4px;
    font-size: 28px;
}
.rv-header p {
    color: var(--text-muted);
    margin: 0 0 20px;
}

.rv-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    border-bottom: 2px solid var(--border);
    margin-bottom: 20px;
}
.rv-tab {
    background: transparent;
    border: none;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
}
.rv-tab:hover { color: var(--teal-dark); }
.rv-tab.active {
    color: var(--navy);
    border-bottom-color: var(--teal);
}

.rv-panel { display: none; }
.rv-panel.active { display: block; }

.rv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.rv-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 18px;
}
.rv-card.rv-full { grid-column: 1 / -1; }

.rv-card h3 {
    color: var(--navy);
    margin: 0 0 12px;
    font-size: 16px;
}
.rv-card h4 {
    color: var(--navy);
    margin: 18px 0 8px;
    font-size: 14px;
}

#rv-app label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin: 10px 0 4px;
}
#rv-app label.rv-check-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--text);
}
#rv-app label.rv-check-row input { width: auto; margin: 0; }

#rv-app input[type=number],
#rv-app input[type=text],
#rv-app select {
    width: 100%;
    padding: 9px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    color: var(--text);
    background: #fff;
}
#rv-app input:focus,
#rv-app select:focus {
    outline: none;
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.rv-btn {
    margin-top: 16px;
    width: 100%;
    background: var(--teal);
    color: #fff;
    border: none;
    padding: 11px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
}
.rv-btn:hover { background: var(--teal-dark); }

.rv-btn-sm {
    background: var(--navy);
    color: #fff;
    border: none;
    padding: 7px 12px;
    border-radius: 5px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
}
.rv-btn-sm:hover { background: var(--navy-2); }
.rv-btn-danger { background: #7a1f2b; }
.rv-btn-danger:hover { background: #5c1620; }

.rv-result { background: var(--teal-light); border-color: var(--teal); }

.rv-big {
    font-size: 36px;
    font-weight: 800;
    color: var(--navy);
    margin-bottom: 12px;
}

.rv-table-out { width: 100%; border-collapse: collapse; font-size: 14px; }
.rv-table-out td { padding: 6px 4px; border-bottom: 1px solid rgba(15,36,57,0.1); color: var(--text); }
.rv-table-out td:first-child { color: var(--text-muted); font-weight: 600; }
.rv-table-out td:last-child { text-align: right; font-weight: 700; color: var(--navy); }

.rv-breakdown-table td:first-child { text-align: left; font-weight: 600; color: var(--text-muted); }
.rv-breakdown-table td:last-child { text-align: right; }
.rv-breakdown-table th { text-align: left; color: var(--navy); background: var(--bg); padding: 6px 4px; border-bottom: 2px solid var(--border); }

.rv-curve { margin-top: 14px; background: #fff; border-radius: 8px; padding: 8px; border: 1px solid var(--border); }
.rv-curve canvas { width: 100%; height: auto; display: block; }

.rv-result-export { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }

.rv-radio-row { display: flex; gap: 24px; flex-wrap: wrap; }
.rv-radio-row label { display: flex; align-items: center; gap: 6px; font-weight: 600; color: var(--text); margin: 6px 0; }
.rv-radio-row input { width: auto; margin: 0; }

.rv-verdict {
    margin-top: 14px;
    padding: 12px 14px;
    border-radius: 8px;
    font-weight: 700;
    background: var(--navy);
    color: #fff;
}
.rv-verdict.rv-pass { background: var(--teal-dark); }
.rv-verdict.rv-warn { background: #b45309; }

.rv-hint { font-size: 13px; color: var(--text-muted); margin: 4px 0 12px; }

.rv-table-scroll { overflow-x: auto; }

.rv-layers-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
}
.rv-running-total { font-weight: 700; color: var(--navy); font-size: 15px; }

.rv-layers-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 640px; }
.rv-layers-table th {
    background: var(--navy);
    color: #fff;
    text-align: left;
    padding: 8px 10px;
}
.rv-layers-table td {
    padding: 6px 8px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
    vertical-align: middle;
}
.rv-layers-table tr:nth-child(even) { background: #f6fbfa; }
.rv-layers-table select,
.rv-layers-table input { padding: 6px 8px; font-size: 13px; }
.rv-th-thick { min-width: 110px; }
.rv-layer-r { font-weight: 700; color: var(--navy); white-space: nowrap; }
.rv-layer-actions { display: flex; gap: 4px; white-space: nowrap; }
.rv-layer-actions button {
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--navy);
    border-radius: 4px;
    padding: 4px 7px;
    cursor: pointer;
    font-size: 12px;
}
.rv-layer-actions button:hover { background: var(--teal-light); }
.rv-layer-airfilm { background: #eef6f5 !important; font-style: italic; color: var(--text-muted); }

.rv-custom-panel {
    margin-top: 14px;
    padding: 14px;
    border: 1px dashed var(--teal);
    border-radius: 8px;
    background: var(--teal-light);
}
.rv-custom-actions { display: flex; gap: 8px; margin-top: 12px; }

.rv-history-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
}
.rv-history-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.rv-history-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.rv-history-table th {
    background: var(--navy);
    color: #fff;
    text-align: left;
    padding: 8px 10px;
}
.rv-history-table td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}
.rv-history-table tr:nth-child(even) { background: #f6fbfa; }

.rv-empty { color: var(--text-muted); font-size: 13px; text-align: center; padding: 16px 0; }

.rv-disclaimer {
    text-align: center;
    color: var(--text-muted);
    font-size: 12px;
    margin-top: 24px;
}

@media (max-width: 600px) {
    .rv-big { font-size: 28px; }
    .rv-layers-head { flex-direction: column; align-items: flex-start; }
}