.tank-planner-page {
    --tank-bg: var(--surface-page, #101214);
    --tank-panel: var(--surface-panel, #191c1f);
    --tank-panel-soft: #202429;
    --tank-text: var(--color-text, #f4f1e8);
    --tank-muted: var(--color-muted, #aaa79f);
    --tank-border: var(--border-subtle, #383d42);
    --tank-accent: #d9aa43;
    --tank-success: #6dba81;
    --tank-goal: #65b9d0;
    background: var(--tank-bg, #101214);
    color: var(--tank-text, #f4f1e8);
}

.tank-planner-page .breadcrumb,
.tank-planner,
.tank-planner-page .site-footer {
    width: min(1220px, calc(100% - 32px));
    max-width: none;
    margin-right: auto;
    margin-left: auto;
}

.tank-planner {
    padding: 8px 0 56px;
}

.tank-appbar,
.tank-panel,
.tank-list-panel {
    border: 1px solid var(--tank-border, #383d42);
    border-radius: 7px;
    background: var(--tank-panel, #191c1f);
}

.tank-appbar {
    display: grid;
    grid-template-columns: minmax(150px, 0.35fr) minmax(540px, 1.4fr) auto;
    gap: 10px 20px;
    margin-bottom: 10px;
    padding: 14px 16px;
    border-left: 3px solid var(--tank-accent, #d9aa43);
}

.tank-appbar > *,
.tank-milestones,
.tank-milestone-list,
.tank-table-wrap {
    min-width: 0;
}

.tank-title-block h1 {
    margin: 0;
    font-size: clamp(1.35rem, 2.2vw, 1.8rem);
    line-height: 1.08;
    letter-spacing: -0.02em;
}

.tank-related a {
    color: var(--tank-text, #f4f1e8);
}

.tank-position-controls {
    display: grid;
    gap: 6px;
}

.tank-position-row {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr) 104px;
    gap: 7px;
    align-items: center;
    min-width: 0;
    padding: 6px 7px;
    border-left: 2px solid var(--tank-accent, #d9aa43);
    background: var(--tank-panel-soft, #202429);
}

.tank-position-row--goal {
    border-left-color: var(--tank-goal, #65b9d0);
}

.tank-position-row > strong {
    font-size: 0.76rem;
}

.tank-position-row label {
    min-width: 0;
}

.tank-position-row label > span {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.tank-position-row select,
.tank-table select {
    box-sizing: border-box;
    width: 100%;
    min-width: 0;
    min-height: 40px;
    padding: 6px 28px 6px 8px;
    border: 1px solid var(--tank-border, #383d42);
    border-radius: 4px;
    background: #15181b;
    color: var(--tank-text, #f4f1e8);
    font: inherit;
    font-size: 0.76rem;
}

.tank-dashboard {
    position: sticky;
    top: 61px;
    z-index: 9;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    margin-bottom: 10px;
    padding: 8px;
    border: 1px solid var(--tank-border, #383d42);
    border-radius: 7px;
    background: var(--tank-panel, #191c1f);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.18);
}

.tank-dashboard.has-goal {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.tank-dashboard > div {
    min-width: 0;
    padding: 7px 10px;
    border: 1px solid var(--tank-border, #383d42);
    border-radius: 5px;
    background: var(--tank-panel-soft, #202429);
}

.tank-dashboard .tank-dashboard-goal {
    border-color: rgba(101, 185, 208, 0.55);
}

.tank-dashboard span {
    display: block;
    overflow: hidden;
    color: var(--tank-muted, #aaa79f);
    font-size: 0.64rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-overflow: ellipsis;
    text-transform: uppercase;
    white-space: nowrap;
}

.tank-dashboard strong {
    display: block;
    margin-top: 1px;
    font-size: 1.08rem;
    font-variant-numeric: tabular-nums;
}

.tank-actions,
.tank-toolbar-group {
    display: flex;
    gap: 6px;
    align-items: center;
}

.tank-actions {
    position: relative;
    justify-content: flex-end;
}

.tank-button,
.tank-node-stepper button {
    min-width: 44px;
    min-height: 44px;
    border: 1px solid var(--tank-border, #383d42);
    border-radius: 5px;
    background: var(--tank-panel-soft, #202429);
    color: var(--tank-text, #f4f1e8);
    font: inherit;
    font-weight: 750;
    cursor: pointer;
}

.tank-button {
    padding: 8px 13px;
}

.tank-button:hover,
.tank-button.is-active,
.tank-node-stepper button:hover:not(:disabled) {
    border-color: var(--tank-accent, #d9aa43);
    background: rgba(217, 170, 67, 0.14);
}

.tank-button--primary {
    border-color: var(--tank-accent, #d9aa43);
    background: var(--tank-accent, #d9aa43);
    color: #17130b;
}

.tank-button--danger {
    color: #ffc1bc;
}

.tank-status {
    position: absolute;
    right: 0;
    bottom: -30px;
    z-index: 25;
    margin: 0;
    padding: 5px 9px;
    border-radius: 4px;
    background: #111416;
    font-size: 0.78rem;
}

.tank-status:empty {
    display: none;
}

.tank-panel {
    margin-bottom: 10px;
    padding: 12px 14px;
}

.tank-milestones {
    padding-top: 8px;
    padding-bottom: 8px;
}

.tank-milestones h2 {
    margin: 0 0 6px;
    color: var(--tank-muted, #aaa79f);
    font-size: 0.67rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.tank-milestone-list {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-snap-type: x proximity;
    scrollbar-width: thin;
}

.tank-milestone-list button {
    display: flex;
    flex: 1 0 178px;
    justify-content: space-between;
    gap: 8px;
    min-height: 52px;
    padding: 7px 9px;
    border: 1px solid var(--tank-border, #383d42);
    border-radius: 5px;
    background: var(--tank-panel-soft, #202429);
    color: var(--tank-text, #f4f1e8);
    font: inherit;
    text-align: left;
    scroll-snap-align: start;
    cursor: pointer;
}

.tank-milestone-list button.is-reached {
    border-color: rgba(109, 186, 129, 0.6);
    background: rgba(109, 186, 129, 0.09);
}

.tank-milestone-list button.is-goal {
    border-color: var(--tank-goal, #65b9d0);
    background: rgba(101, 185, 208, 0.13);
}

.tank-milestone-list small {
    display: block;
    margin-top: 2px;
    color: var(--tank-muted, #aaa79f);
    font-size: 0.62rem;
    font-weight: 600;
}

.tank-milestone-list strong {
    white-space: nowrap;
    text-align: right;
    font-size: 0.76rem;
    font-variant-numeric: tabular-nums;
}

.tank-list-panel {
    min-width: 0;
    padding: 14px;
}

.tank-section-heading {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: end;
    margin-bottom: 8px;
}

.tank-section-heading h2,
.tank-related h2 {
    margin: 0;
    font-size: 1.02rem;
}

.tank-section-heading p,
.tank-related > p {
    margin: 3px 0 0;
    color: var(--tank-muted, #aaa79f);
    font-size: 0.78rem;
}

.tank-path {
    display: grid;
    gap: 6px;
    width: min(100%, 860px);
    margin: 0 auto;
}

.tank-path-group {
    margin: 10px 0 0;
    padding: 7px 2px 2px;
    color: var(--tank-accent, #d9aa43);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.tank-path-group:first-child {
    margin-top: 0;
}

.tank-path-node {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--tank-border, #383d42);
    border-left: 3px solid var(--tank-border, #383d42);
    border-radius: 6px;
    background: var(--tank-panel-soft, #202429);
}

.tank-path-node.is-complete {
    border-left-color: var(--tank-success, #6dba81);
    background: rgba(109, 186, 129, 0.07);
}

.tank-path-node.is-current:not(.is-complete) {
    border-color: var(--tank-accent, #d9aa43);
    border-left-width: 3px;
    box-shadow: 0 0 0 1px rgba(217, 170, 67, 0.12);
}

.tank-path-node.has-goal::after {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    width: 3px;
    background: var(--tank-goal, #65b9d0);
    content: "";
    pointer-events: none;
}

.tank-node-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 62px 58px;
    align-items: stretch;
}

.tank-node-summary {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto 16px;
    gap: 10px;
    align-items: center;
    width: 100%;
    min-height: 58px;
    padding: 8px 10px;
    border: 0;
    background: transparent;
    color: var(--tank-text, #f4f1e8);
    font: inherit;
    text-align: left;
    cursor: pointer;
}

.tank-node-summary:hover {
    background: rgba(255, 255, 255, 0.025);
}

.tank-node-quick {
    display: grid;
    place-content: center;
    gap: 1px;
    min-width: 44px;
    min-height: 58px;
    padding: 6px;
    border: 0;
    border-left: 1px solid var(--tank-border, #383d42);
    background: transparent;
    color: var(--tank-muted, #aaa79f);
    font: inherit;
    font-size: 0.68rem;
    font-weight: 750;
    cursor: pointer;
}

.tank-node-quick:hover {
    background: rgba(255, 255, 255, 0.04);
}

.tank-node-done {
    color: #cbc9c2;
}

.tank-node-done-icon {
    position: relative;
    display: grid;
    place-items: center;
    box-sizing: border-box;
    width: 15px;
    height: 15px;
    margin: 0 auto;
    border: 2px solid currentColor;
    border-radius: 3px;
}

.tank-node-done[aria-pressed="true"] {
    color: #d5f5dd;
}

.tank-node-done[aria-pressed="true"] .tank-node-done-icon {
    border-color: var(--tank-success, #6dba81);
    background: var(--tank-success, #6dba81);
}

.tank-node-done[aria-pressed="true"] .tank-node-done-icon::after {
    box-sizing: border-box;
    width: 6px;
    height: 9px;
    border-right: 2px solid #102015;
    border-bottom: 2px solid #102015;
    content: "";
    transform: translateY(-1px) rotate(45deg);
}

.tank-node-goal-icon {
    position: relative;
    box-sizing: border-box;
    width: 15px;
    height: 16px;
    margin: 0 auto;
    border-left: 2px solid #9ba8ab;
}

.tank-node-goal-icon::before {
    position: absolute;
    top: 1px;
    left: 0;
    box-sizing: border-box;
    width: 11px;
    height: 8px;
    border: 2px solid #9ba8ab;
    border-left: 0;
    border-radius: 0 2px 2px 0;
    content: "";
}

.tank-node-goal[aria-pressed="true"] {
    background: rgba(101, 185, 208, 0.12);
    color: #c9f2fc;
}

.tank-node-goal[aria-pressed="true"] .tank-node-goal-icon,
.tank-node-goal[aria-pressed="true"] .tank-node-goal-icon::before {
    border-color: var(--tank-goal, #65b9d0);
}

.tank-node-goal[aria-pressed="true"] .tank-node-goal-icon::before {
    background: var(--tank-goal, #65b9d0);
}

.tank-node-heading {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1px 10px;
    min-width: 0;
}

.tank-node-heading strong {
    overflow: hidden;
    font-size: 0.88rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tank-node-heading small {
    grid-column: 1 / -1;
    color: var(--tank-muted, #aaa79f);
    font-size: 0.66rem;
}

.tank-node-level {
    grid-column: 2;
    grid-row: 1;
    color: var(--tank-accent, #d9aa43);
    font-size: 0.64rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.tank-node-state {
    min-width: 74px;
    text-align: right;
}

.tank-node-state strong,
.tank-node-state small {
    display: block;
    font-variant-numeric: tabular-nums;
}

.tank-node-state strong {
    font-size: 0.82rem;
}

.tank-node-state small {
    margin-top: 2px;
    color: var(--tank-muted, #aaa79f);
    font-size: 0.63rem;
}

.tank-node-chevron {
    width: 8px;
    height: 8px;
    border-right: 2px solid var(--tank-muted, #aaa79f);
    border-bottom: 2px solid var(--tank-muted, #aaa79f);
    transform: translateY(-2px) rotate(45deg);
}

.tank-node-summary[aria-expanded="true"] .tank-node-chevron {
    transform: translateY(2px) rotate(225deg);
}

.tank-node-progress {
    height: 3px;
    overflow: hidden;
    background: #101214;
}

.tank-node-progress span {
    display: block;
    height: 100%;
    background: var(--tank-accent, #d9aa43);
}

.is-complete .tank-node-progress span {
    background: var(--tank-success, #6dba81);
}

.tank-node-detail {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 9px 10px 10px;
    border-top: 1px solid var(--tank-border, #383d42);
}

.tank-node-stepper {
    display: grid;
    grid-template-columns: 44px 52px 44px;
    gap: 4px;
    align-items: center;
}

.tank-node-stepper button {
    padding: 0;
    font-size: 1.15rem;
}

.tank-node-stepper button:disabled,
.tank-node-quick:disabled {
    cursor: not-allowed;
    opacity: 0.38;
}

.tank-node-stepper output {
    text-align: center;
    font-size: 0.8rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}

.tank-table-wrap {
    overflow-x: auto;
}

.tank-table {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
    font-size: 0.76rem;
}

.tank-table th:nth-child(1) { width: 55%; }
.tank-table th:nth-child(2) { width: 10%; }
.tank-table th:nth-child(3) { width: 16%; }
.tank-table th:nth-child(4) { width: 19%; }

.tank-table th,
.tank-table td {
    padding: 7px 8px;
    border-bottom: 1px solid var(--tank-border, #383d42);
    text-align: left;
    overflow-wrap: anywhere;
}

.tank-table th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: var(--tank-panel, #191c1f);
    color: var(--tank-muted, #aaa79f);
    font-size: 0.62rem;
    letter-spacing: 0.03em;
    overflow-wrap: normal;
    text-transform: uppercase;
    word-break: normal;
}

.tank-table-row.is-complete {
    background: rgba(109, 186, 129, 0.06);
}

.tank-table-row.has-goal {
    box-shadow: inset 3px 0 var(--tank-goal, #65b9d0);
}

.tank-table-row td:first-child {
    padding: 0;
}

.tank-table-row td:first-child button {
    display: block;
    width: 100%;
    min-height: 48px;
    padding: 7px 8px;
    border: 0;
    background: transparent;
    color: var(--tank-text, #f4f1e8);
    font: inherit;
    text-align: left;
    cursor: pointer;
}

.tank-table-row td:first-child small {
    display: block;
    margin-top: 2px;
    color: var(--tank-muted, #aaa79f);
    font-size: 0.62rem;
}

.tank-table-detail td {
    padding: 8px;
    background: #15181b;
}

.tank-table-detail td > div {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    max-width: 520px;
}

.tank-table-detail label > span {
    display: block;
    margin-bottom: 4px;
    color: var(--tank-muted, #aaa79f);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
}

.tank-table select {
    min-height: 44px;
}

.tank-related {
    margin-top: 10px;
}

.tank-related-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    margin-top: 12px;
}

.tank-related-grid a {
    min-height: 80px;
    padding: 12px;
    border: 1px solid var(--tank-border, #383d42);
    border-radius: 5px;
    text-decoration: none;
}

.tank-related-grid span {
    display: block;
    margin-top: 4px;
    color: var(--tank-muted, #aaa79f);
    font-size: 0.76rem;
    line-height: 1.35;
}

.tank-dialog {
    width: min(680px, calc(100% - 24px));
    max-height: calc(100dvh - 32px);
    padding: 0;
    overflow: auto;
    border: 1px solid var(--tank-border, #383d42);
    border-radius: 8px;
    background: var(--tank-panel, #191c1f);
    color: var(--tank-text, #f4f1e8);
}

.tank-dialog::backdrop {
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(3px);
}

.tank-dialog-open {
    overflow: hidden;
}

.tank-dialog-shell {
    position: relative;
    padding: 26px;
}

.tank-dialog-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 44px;
    height: 44px;
    border: 1px solid var(--tank-border, #383d42);
    border-radius: 50%;
    background: var(--tank-panel-soft, #202429);
    color: var(--tank-text, #f4f1e8);
    font-size: 1.6rem;
    cursor: pointer;
}

.tank-dialog-shell > h2 {
    margin: 0;
    padding-right: 48px;
}

.tank-dialog-shell--confirm p {
    margin: 0;
    color: var(--tank-muted, #aaa79f);
    font-size: 0.85rem;
}

.tank-dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 20px;
}

.tank-planner-page :where(button, select, a):focus-visible {
    outline: 2px solid var(--focus-ring, #fff);
    outline-offset: 3px;
}

[hidden] {
    display: none !important;
}

@media (max-width: 980px) {
    .tank-appbar {
        grid-template-columns: minmax(0, 1fr);
    }

    .tank-actions {
        justify-content: space-between;
    }

    .tank-related-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .tank-planner-document,
    .tank-planner-page {
        overflow-x: clip;
    }

    .tank-planner-page {
        padding-bottom: 72px;
    }

    .tank-planner-page .breadcrumb,
    .tank-planner,
    .tank-planner-page .site-footer {
        width: min(100% - 20px, 1220px);
    }

    .tank-planner {
        padding-bottom: 24px;
    }

    .tank-appbar,
    .tank-panel,
    .tank-list-panel {
        padding: 10px;
    }

    .tank-title-block h1 {
        font-size: 1.35rem;
    }

    .tank-position-row {
        grid-template-columns: 54px minmax(0, 1fr) 88px;
        padding: 5px 6px 6px;
    }

    .tank-position-row select {
        min-height: 44px;
    }

    .tank-dashboard {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        padding: 6px;
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.26);
    }

    .tank-dashboard.has-goal {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .tank-dashboard > div {
        padding: 6px 8px;
    }

    .tank-dashboard strong {
        font-size: 1rem;
    }

    .tank-section-heading p {
        font-size: 0.72rem;
    }

    .tank-node-row {
        grid-template-columns: minmax(0, 1fr) 54px 50px;
    }

    .tank-node-summary {
        grid-template-columns: minmax(0, 1fr) auto 14px;
        gap: 7px;
        min-height: 60px;
        padding: 8px;
    }

    .tank-node-heading {
        grid-template-columns: 1fr;
    }

    .tank-node-heading strong {
        white-space: normal;
    }

    .tank-node-level {
        grid-column: 1;
        grid-row: auto;
        order: -1;
    }

    .tank-node-state {
        min-width: 58px;
    }

    .tank-node-detail {
        justify-content: center;
    }

    .tank-table {
        font-size: 0.7rem;
    }

    .tank-table th,
    .tank-table td {
        padding-right: 5px;
        padding-left: 5px;
    }

    .tank-table th:nth-child(1) { width: 48%; }
    .tank-table th:nth-child(2) { width: 11%; }
    .tank-table th:nth-child(3) { width: 18%; }
    .tank-table th:nth-child(4) { width: 23%; }

    .tank-table-detail td > div,
    .tank-related-grid {
        grid-template-columns: 1fr;
    }

    .tank-dialog-shell {
        padding: 20px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .tank-planner-page *,
    .tank-planner-page *::before,
    .tank-planner-page *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}