:root {
    --fpa-surface: #ffffff;
    --fpa-surface-soft: #f7f9fd;
    --fpa-line: rgba(10, 22, 40, 0.08);
    --fpa-line-strong: rgba(10, 22, 40, 0.12);
    --fpa-muted: #617087;
    --fpa-ink: #0d1c31;
    --fpa-blue: #2d68f6;
    --fpa-teal: #0fbf8c;
    --fpa-amber: #f3a24f;
    --fpa-coral: #e0674a;
    --fpa-rose: #d9496f;
    --fpa-chip: rgba(45, 104, 246, 0.08);
    --fpa-shadow: 0 24px 64px rgba(10, 22, 40, 0.08);
}

.fpa-tool-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
    gap: 1.25rem;
}

.fpa-panel {
    background: var(--fpa-surface);
    border: 1px solid var(--fpa-line);
    border-radius: 24px;
    box-shadow: var(--fpa-shadow);
    padding: 1.25rem;
}

.fpa-panel-title {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.95rem;
}

.fpa-panel-title h3 {
    font-size: 1.1rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.fpa-panel-title span {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--fpa-muted);
}

.fpa-inline-note,
.fpa-empty-state p,
.fpa-empty-item span,
.fpa-summary-card p,
.fpa-signal-card p,
.fpa-insight-card p,
.fpa-detail-card p,
.fpa-card-head p,
.fpa-import-help {
    color: var(--fpa-muted);
    line-height: 1.7;
}

.fpa-field-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
    margin-top: 1rem;
}

.fpa-field {
    display: grid;
    gap: 0.35rem;
}

.fpa-field-wide {
    grid-column: 1 / -1;
}

.fpa-field label,
.fpa-table-label {
    font-size: 0.77rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fpa-muted);
}

.fpa-input-wrap {
    position: relative;
}

.fpa-text-input,
.fpa-select-input,
.fpa-sheet input,
.fpa-paste-wrap textarea,
.fpa-search-row input {
    width: 100%;
    border: 1px solid var(--fpa-line-strong);
    border-radius: 16px;
    background: #fff;
    color: var(--fpa-ink);
    font: inherit;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.fpa-text-input,
.fpa-select-input,
.fpa-sheet input {
    min-height: 46px;
    padding: 0.8rem 0.9rem;
}

.fpa-text-input.has-affix {
    padding-left: 2rem;
}

.fpa-select-input.has-affix {
    padding-left: 2rem;
}

.fpa-input-affix {
    position: absolute;
    top: 50%;
    left: 0.9rem;
    transform: translateY(-50%);
    color: var(--fpa-muted);
    font-weight: 700;
}

.fpa-text-input:focus,
.fpa-select-input:focus,
.fpa-sheet input:focus,
.fpa-paste-wrap textarea:focus,
.fpa-search-row input:focus {
    outline: none;
    border-color: rgba(45, 104, 246, 0.5);
    box-shadow: 0 0 0 4px rgba(45, 104, 246, 0.1);
}

.fpa-help {
    color: var(--fpa-muted);
    font-size: 0.82rem;
    line-height: 1.55;
}

.fpa-action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.fpa-action-row-wide {
    margin-top: 1.25rem;
}

.fpa-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0.7rem 1rem;
    border-radius: 14px;
    border: 1px solid transparent;
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
}

.fpa-btn:hover {
    transform: translateY(-1px);
}

.fpa-btn-primary {
    background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
    color: #fff;
    box-shadow: 0 14px 30px rgba(45, 104, 246, 0.18);
}

.fpa-btn-secondary {
    background: var(--fpa-surface-soft);
    border-color: var(--fpa-line);
    color: var(--fpa-ink);
}

.fpa-btn-tertiary {
    background: #fff;
    border-color: var(--fpa-line);
    color: var(--fpa-muted);
}

.fpa-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.fpa-status {
    margin-top: 0.95rem;
    padding: 0.85rem 1rem;
    border-radius: 16px;
    font-size: 0.92rem;
    line-height: 1.6;
    border: 1px solid transparent;
}

.fpa-status.muted {
    background: var(--fpa-surface-soft);
    color: var(--fpa-muted);
    border-color: var(--fpa-line);
}

.fpa-status.success {
    background: rgba(15, 191, 140, 0.08);
    color: #0b6b51;
    border-color: rgba(15, 191, 140, 0.16);
}

.fpa-status.error {
    background: rgba(217, 73, 111, 0.08);
    color: #8a2342;
    border-color: rgba(217, 73, 111, 0.14);
}

.fpa-empty-state h3,
.fpa-card-head h3 {
    font-size: 1.2rem;
    line-height: 1.25;
    letter-spacing: -0.02em;
    margin-bottom: 0.45rem;
}

.fpa-empty-list,
.fpa-summary-grid,
.fpa-signal-grid,
.fpa-insight-grid,
.fpa-detail-grid {
    display: grid;
    gap: 0.9rem;
}

.fpa-empty-list {
    margin-top: 1rem;
}

.fpa-empty-item,
.fpa-summary-card,
.fpa-signal-card,
.fpa-insight-card,
.fpa-detail-card,
.fpa-result-card {
    background: var(--fpa-surface-soft);
    border: 1px solid var(--fpa-line);
    border-radius: 20px;
}

.fpa-empty-item,
.fpa-insight-card,
.fpa-signal-card,
.fpa-summary-card,
.fpa-detail-card {
    padding: 1rem;
}

.fpa-empty-item strong,
.fpa-signal-card strong,
.fpa-insight-card strong,
.fpa-detail-card strong,
.fpa-summary-card strong {
    display: block;
    line-height: 1.3;
}

.fpa-summary-grid,
.fpa-signal-grid,
.fpa-insight-grid,
.fpa-detail-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.fpa-summary-card strong {
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fpa-muted);
    margin-bottom: 0.45rem;
}

.fpa-summary-value {
    font-size: 1.8rem;
    line-height: 1;
    letter-spacing: -0.04em;
    margin-bottom: 0.45rem;
    color: var(--fpa-ink);
}

.fpa-summary-card p,
.fpa-signal-card p,
.fpa-insight-card p,
.fpa-detail-card p {
    margin: 0;
}

.fpa-result-card {
    margin-top: 1rem;
    padding: 1rem;
}

.fpa-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.9rem;
}

.fpa-tone-positive {
    border-color: rgba(15, 191, 140, 0.2);
    background: rgba(15, 191, 140, 0.08);
}

.fpa-tone-warning {
    border-color: rgba(243, 162, 79, 0.22);
    background: rgba(243, 162, 79, 0.1);
}

.fpa-tone-critical {
    border-color: rgba(217, 73, 111, 0.18);
    background: rgba(217, 73, 111, 0.08);
}

.fpa-tone-neutral {
    border-color: var(--fpa-line);
}

.fpa-table-shell {
    margin-top: 1.15rem;
    padding-top: 1.15rem;
    border-top: 1px solid var(--fpa-line);
}

.fpa-dropzone {
    display: grid;
    gap: 0.45rem;
    padding: 1.2rem;
    border-radius: 22px;
    border: 1.5px dashed rgba(45, 104, 246, 0.24);
    background: linear-gradient(180deg, rgba(45, 104, 246, 0.05) 0%, rgba(248, 249, 252, 0.92) 100%);
    color: var(--fpa-ink);
    cursor: pointer;
    margin-top: 0.9rem;
}

.fpa-dropzone input {
    display: none;
}

.fpa-dropzone strong {
    font-size: 1rem;
    line-height: 1.35;
}

.fpa-dropzone span {
    color: var(--fpa-muted);
    line-height: 1.65;
    font-size: 0.92rem;
}

.fpa-split {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0.95rem 0;
}

.fpa-split span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 52px;
    padding: 0.28rem 0.75rem;
    border-radius: 999px;
    background: var(--fpa-surface-soft);
    border: 1px solid var(--fpa-line);
    color: var(--fpa-muted);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.fpa-paste-wrap textarea {
    min-height: 132px;
    padding: 1rem;
    resize: vertical;
}

.fpa-sheet-wrap,
.fpa-results-table-wrap {
    overflow-x: auto;
    margin-top: 1rem;
    border: 1px solid var(--fpa-line);
    border-radius: 18px;
    background: #fff;
}

.fpa-sheet,
.fpa-results-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 620px;
}

.fpa-sheet th,
.fpa-sheet td,
.fpa-results-table th,
.fpa-results-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--fpa-line);
    vertical-align: top;
    text-align: left;
}

.fpa-sheet th,
.fpa-results-table th {
    background: var(--fpa-surface-soft);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--fpa-muted);
}

.fpa-sheet td:last-child,
.fpa-sheet th:last-child {
    width: 64px;
    text-align: center;
}

.fpa-sheet tr:last-child td,
.fpa-results-table tr:last-child td {
    border-bottom: none;
}

.fpa-row-remove {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 34px;
    min-height: 34px;
    border-radius: 12px;
    border: 1px solid var(--fpa-line);
    background: #fff;
    color: var(--fpa-muted);
    font-weight: 800;
}

.fpa-align-right {
    text-align: right !important;
}

@media (max-width: 1080px) {
    .fpa-tool-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .fpa-field-grid,
    .fpa-summary-grid,
    .fpa-signal-grid,
    .fpa-insight-grid,
    .fpa-detail-grid {
        grid-template-columns: 1fr;
    }

    .fpa-panel {
        padding: 1rem;
    }
}