[hidden] {
    display: none !important;
}

body {
    padding-top: var(--nav-height);
}

button,
input,
select {
    font: inherit;
}

.odin-tab-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 24px;
    background: var(--nav-bg);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.odin-tab-container {
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 1400px;
    height: var(--nav-height);
    margin: 0 auto;
}

.odin-tab-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-right: 24px;
    margin-right: 16px;
    border-right: 1px solid var(--glass-border);
    color: var(--text-primary);
    text-decoration: none;
}

.odin-tab-logo img {
    width: 32px;
    height: 32px;
}

.odin-tab-logo span {
    font-size: 16px;
    font-weight: 600;
}

.odin-tab-btn {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
}

.odin-tab-btn:hover {
    background: var(--nav-hover-bg, var(--subtle-bg-hover));
    color: var(--text-primary);
}

.odin-tab-btn.active {
    background: var(--nav-active-bg, rgba(0, 120, 212, 0.15));
    color: var(--accent-blue);
}

.odin-tab-btn.active::after {
    position: absolute;
    bottom: -8px;
    left: 50%;
    width: 40px;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: var(--accent-blue);
    content: '';
    transform: translateX(-50%);
}

.odin-tab-btn svg {
    width: 18px;
    height: 18px;
}

.nav-theme-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    margin-left: auto;
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    background: var(--subtle-bg);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
}

.nav-theme-toggle:hover {
    background: var(--subtle-bg-hover);
}

.s2d-header {
    margin: 16px auto 32px;
    text-align: center;
}

.s2d-header .header-title {
    line-height: 1.2;
    letter-spacing: 0;
}

.s2d-header .header-title span {
    display: block;
}

.s2d-header .header-description {
    max-width: 900px;
    margin: 0 auto;
    color: var(--text-secondary);
}

.s2d-result-actions {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    flex-wrap: nowrap;
    gap: 6px;
}

.s2d-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 6px 14px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.s2d-button:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.s2d-button svg,
.s2d-section-icon svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 2;
}

.s2d-report-help-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    white-space: nowrap;
}

.s2d-report-help-icon span:last-child {
    font-size: 0.85em;
}

.s2d-workspace {
    display: grid;
    grid-template-columns: minmax(320px, 0.92fr) minmax(360px, 1.08fr);
    gap: 20px;
    max-width: 1120px;
    margin: 0 auto 20px;
}

.s2d-panel {
    max-width: 1120px;
    padding: 24px;
    margin: 0 auto 20px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: var(--card-bg-transparent);
}

.s2d-workspace .s2d-panel {
    width: 100%;
    margin: 0;
}

.s2d-section-heading {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 22px;
}

.s2d-section-heading h2 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.2rem;
}

.s2d-section-heading p {
    margin: 2px 0 0;
    color: var(--text-secondary);
    font-size: 0.88rem;
}

.s2d-section-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 36px;
    width: 36px;
    height: 36px;
    border: 1px solid rgba(0, 120, 212, 0.35);
    border-radius: 6px;
    background: rgba(0, 120, 212, 0.12);
    color: var(--accent-blue);
}

.s2d-config fieldset,
.s2d-pool fieldset {
    padding: 0;
    margin: 0 0 20px;
    border: 0;
}

.s2d-config fieldset:last-child,
.s2d-pool fieldset:last-child {
    margin-bottom: 0;
}

.s2d-config legend,
.s2d-pool legend {
    margin-bottom: 9px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 600;
}

.s2d-segmented {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.s2d-segmented-three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.s2d-segmented label {
    position: relative;
    cursor: pointer;
}

.s2d-segmented input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.s2d-segmented span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 8px 10px;
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    background: var(--subtle-bg);
    color: var(--text-secondary);
    font-size: 0.86rem;
    font-weight: 600;
    text-align: center;
}

.s2d-segmented span small {
    display: block;
    margin-left: 5px;
    color: inherit;
    font-size: 0.72rem;
    font-weight: 400;
}

.s2d-segmented input:checked + span {
    border-color: var(--accent-blue);
    background: rgba(0, 120, 212, 0.15);
    color: var(--text-primary);
    box-shadow: inset 0 0 0 1px var(--accent-blue);
}

.s2d-segmented input:focus-visible + span,
.s2d-button:focus-visible,
.s2d-field input:focus-visible,
.s2d-field select:focus-visible,
.s2d-node-control input:focus-visible,
.s2d-table-scroll:focus-visible {
    outline: 3px solid var(--warning);
    outline-offset: 2px;
}

.s2d-node-control {
    display: grid;
    grid-template-columns: minmax(120px, 1fr) auto 76px;
    align-items: center;
    gap: 12px;
}

.s2d-node-control label {
    color: var(--text-secondary);
    font-size: 0.84rem;
}

.s2d-node-control input[type='range'] {
    width: 100%;
    accent-color: var(--accent-blue);
}

.s2d-node-control input[type='number'],
.s2d-field input,
.s2d-field select {
    width: 100%;
    min-height: 40px;
    padding: 8px 10px;
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    background: var(--select-bg, var(--card-bg));
    color: var(--text-primary);
}

.s2d-field-note {
    margin: 8px 0 0;
    color: var(--text-secondary);
    font-size: 0.78rem;
}

.s2d-result {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 440px;
    border-top: 3px solid var(--accent-blue);
}

.s2d-result[data-state='invalid'] {
    border-top-color: var(--danger);
}

.s2d-result-label {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
}

.s2d-result-value {
    margin: 8px 0 12px;
    color: var(--accent-blue);
    font-size: 3.8rem;
    font-weight: 700;
    line-height: 1;
}

.s2d-result[data-state='invalid'] .s2d-result-value {
    color: var(--danger);
}

.s2d-result-summary {
    margin: 0;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.s2d-rule {
    height: 1px;
    margin: 22px 0;
    background: var(--glass-border);
}

.s2d-result-detail {
    margin: 0 0 8px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.s2d-tip-label {
    color: var(--warning);
}

.s2d-result-detail a,
.s2d-footer a {
    color: var(--accent-blue);
}

.s2d-alert {
    padding: 12px;
    margin-top: 14px;
    border: 1px solid var(--danger);
    border-radius: 6px;
    background: rgba(239, 68, 68, 0.1);
    color: var(--text-primary);
    font-size: 0.86rem;
    font-weight: 600;
}

.s2d-pool-layout {
    display: grid;
    grid-template-columns: minmax(320px, 1fr) minmax(340px, 0.9fr);
    gap: 28px;
}

.s2d-fields-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.s2d-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: var(--text-primary);
    font-size: 0.84rem;
    font-weight: 600;
}

.s2d-field-wide {
    grid-column: 1 / -1;
}

.s2d-pool-result {
    padding-left: 28px;
    border-left: 1px solid var(--glass-border);
}

.s2d-metrics {
    display: grid;
    gap: 14px;
    margin: 0;
}

.s2d-metrics > div {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--glass-border);
}

.s2d-metrics dt {
    color: var(--text-secondary);
    font-size: 0.84rem;
}

.s2d-metrics dd {
    margin: 0;
    color: var(--text-primary);
    font-weight: 700;
}

.s2d-formula-line {
    margin: 14px 0 22px;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.s2d-volume-count {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
}

.s2d-volume-count span {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
}

.s2d-volume-count strong {
    color: var(--accent-blue);
    font-size: 3rem;
    line-height: 1;
}

.s2d-volume-sizing {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin: 12px 0 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.s2d-volume-sizing span {
    text-align: right;
}

.s2d-derivation {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    padding: 0;
    margin: 0;
    list-style: none;
}

.s2d-derivation li {
    display: flex;
    gap: 12px;
    min-height: 100px;
    padding: 4px 18px;
    border-right: 1px solid var(--glass-border);
}

.s2d-derivation li:first-child {
    padding-left: 0;
}

.s2d-derivation li:last-child {
    padding-right: 0;
    border-right: 0;
}

.s2d-derivation li > span {
    color: var(--accent-blue);
    font-size: 0.75rem;
    font-weight: 700;
}

.s2d-derivation h3 {
    margin: 0 0 6px;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.s2d-derivation p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.s2d-table-scroll {
    overflow-x: auto;
}

.s2d-panel table {
    width: 100%;
    border-collapse: collapse;
}

.s2d-panel th,
.s2d-panel td {
    padding: 11px 12px;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-primary);
    text-align: left;
}

.s2d-panel th {
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.s2d-panel td {
    font-size: 0.84rem;
}

.s2d-panel tr[data-selected='true'] {
    background: rgba(0, 120, 212, 0.12);
}

.s2d-selected {
    margin-left: 8px;
    color: var(--success);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}

.s2d-footer {
    padding: 24px 16px 0;
    color: var(--text-secondary);
    font-size: 0.82rem;
    text-align: center;
}

.s2d-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 1050px) {
    .s2d-derivation {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        row-gap: 22px;
    }

    .s2d-derivation li:nth-child(2) {
        border-right: 0;
    }
}

@media (max-width: 900px) {
    .s2d-workspace,
    .s2d-pool-layout {
        grid-template-columns: 1fr;
    }

    .s2d-result {
        min-height: 320px;
    }

    .s2d-pool-result {
        padding: 24px 0 0;
        border-top: 1px solid var(--glass-border);
        border-left: 0;
    }
}

@media (max-width: 768px) {
    .odin-tab-nav {
        padding: 0 8px;
    }

    .odin-tab-container {
        gap: 4px;
    }

    .odin-tab-logo {
        gap: 6px;
        padding-right: 8px;
        margin-right: 4px;
    }

    .odin-tab-logo span,
    .nav-feedback-text,
    .nav-optout-text {
        display: none;
    }

    .odin-tab-btn {
        gap: 0;
        padding: 8px 10px;
        font-size: 0;
    }

    .odin-tab-btn svg {
        width: 20px;
        height: 20px;
    }

    .nav-theme-toggle {
        padding: 6px 8px;
        font-size: 14px;
    }

    .container {
        padding: 1.25rem 0.75rem;
    }

    .s2d-result-value {
        font-size: 3rem;
    }
}

@media (max-width: 560px) {
    .s2d-segmented,
    .s2d-segmented-three,
    .s2d-fields-grid,
    .s2d-derivation {
        grid-template-columns: 1fr;
    }

    .s2d-node-control {
        grid-template-columns: 1fr 72px;
    }

    .s2d-node-control label {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip-path: inset(50%);
    }

    .s2d-panel {
        padding: 18px;
    }

    .s2d-result {
        justify-content: flex-start;
    }

    .s2d-result-actions {
        position: static;
        flex-wrap: wrap;
        justify-content: flex-end;
        margin-bottom: 24px;
    }

    .s2d-derivation li,
    .s2d-derivation li:first-child,
    .s2d-derivation li:last-child {
        min-height: 0;
        padding: 0 0 16px;
        border-right: 0;
        border-bottom: 1px solid var(--glass-border);
    }

    .s2d-derivation li:last-child {
        padding-bottom: 0;
        border-bottom: 0;
    }

    .s2d-metrics > div {
        align-items: flex-start;
        flex-direction: column;
        gap: 3px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}

.s2d-resume-banner {
    position: fixed;
    top: 20px;
    left: 50%;
    z-index: 10000;
    display: flex;
    align-items: center;
    gap: 16px;
    width: min(600px, calc(100% - 32px));
    padding: 16px 24px;
    color: var(--button-text);
    background: var(--accent-blue);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    transform: translateX(-50%);
}

.s2d-resume-copy {
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.s2d-resume-copy span {
    font-size: 0.75rem;
    opacity: 0.9;
}

.s2d-resume-actions {
    display: flex;
    gap: 8px;
}

.s2d-resume-button {
    min-height: 38px;
    padding: 8px 14px;
    color: var(--button-text);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    border: 0;
    border-radius: 6px;
}

.s2d-resume-primary {
    color: var(--accent-blue);
    background: var(--button-text);
}

.s2d-resume-secondary {
    background: rgba(255, 255, 255, 0.2);
}

@media (max-width: 600px) {
    .s2d-resume-banner {
        top: 12px;
        align-items: stretch;
        flex-direction: column;
        padding: 16px;
    }

    .s2d-resume-actions,
    .s2d-resume-button {
        width: 100%;
    }
}

@media print {
    .s2d-resume-banner {
        display: none !important;
    }
}