:root {
    color-scheme: dark;
    --bg: #05070d;
    --panel: rgba(8, 12, 22, 0.96);
    --panel-soft: rgba(13, 19, 31, 0.9);
    --text: #eef4ff;
    --muted: #98a7b4;
    --indigo: #6f7ee6;
    --green: #63c982;
    --danger: #e55c70;
    --border: rgba(111, 126, 230, 0.2);
    --shadow: rgba(0, 0, 0, 0.5);
    --radius: 8px;
    font-family: Inter, Roboto, "Segoe UI", Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    padding-bottom: 78px;
    color: var(--text);
    background:
        linear-gradient(rgba(111, 126, 230, 0.016) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 201, 130, 0.014) 1px, transparent 1px),
        linear-gradient(135deg, rgba(111, 126, 230, 0.035), transparent 34%),
        linear-gradient(315deg, rgba(99, 201, 130, 0.03), transparent 38%),
        var(--bg);
    background-size: 34px 34px, 34px 34px, auto, auto, auto;
    line-height: 1.5;
}

button,
input,
select,
textarea {
    font: inherit;
}

button {
    cursor: pointer;
}

a {
    color: var(--indigo);
    text-decoration: none;
}

.app-header {
    border-bottom: 1px solid rgba(111, 126, 230, 0.16);
    background: linear-gradient(90deg, rgba(111, 126, 230, 0.05), rgba(99, 201, 130, 0.032)), rgba(5, 7, 13, 0.94);
    box-shadow: 0 12px 30px var(--shadow);
}

h1 {
    margin: 0;
    font-family: "Cascadia Mono", "Segoe UI", monospace;
    font-size: clamp(1.55rem, 4vw, 2.65rem);
    line-height: 1.05;
    text-transform: uppercase;
    text-shadow: 0 0 14px rgba(111, 126, 230, 0.12);
}

h1 a,
h1 a:hover {
    color: inherit;
    text-decoration: none;
}

.header-tagline.is-typing {
    min-width: var(--typing-width, auto);
}

.header-tagline.is-typing::after {
    content: "";
    display: inline-block;
    width: 8px;
    height: 1em;
    margin-left: 4px;
    vertical-align: -2px;
    background: currentColor;
    box-shadow: 0 0 8px currentColor;
    animation: cursor-blink 800ms steps(2, start) infinite;
}

.header-tagline {
    max-width: 620px;
    margin: 8px 0 0;
    color: var(--muted);
    font-weight: 700;
}

.task-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 30px auto 56px;
}

.storage-alert,
.task-board,
.info-panel {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--panel);
    box-shadow: 0 0 14px rgba(111, 126, 230, 0.035), 0 14px 34px var(--shadow);
}

.storage-alert {
    margin-bottom: 14px;
    padding: 12px 14px;
    color: #ffe3e9;
    border-color: rgba(229, 92, 112, 0.34);
    background: rgba(229, 92, 112, 0.1);
    font-weight: 800;
}

.task-board {
    min-height: 620px;
    display: grid;
    grid-template-columns: minmax(230px, 310px) minmax(0, 1fr);
    overflow: hidden;
}

.task-board > *,
.group-panel > *,
.task-panel > *,
.task-toolbar > *,
.toolbar-actions > *,
.task-form > *,
.export-panel > *,
.export-actions > *,
.task-item > *,
.task-actions > * {
    min-width: 0;
}

.group-panel {
    padding: 18px;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    gap: 14px;
    border-right: 1px solid rgba(111, 126, 230, 0.14);
    background: rgba(0, 0, 0, 0.16);
}

.panel-header,
.task-toolbar,
.task-form,
.export-panel,
.export-actions,
.task-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.panel-header,
.task-toolbar,
.export-panel {
    justify-content: space-between;
}

.panel-header h2,
.task-toolbar h2 {
    margin: 0;
    color: var(--indigo);
    font-size: 1rem;
    text-transform: uppercase;
}

.task-toolbar p {
    margin: 4px 0 0;
    color: var(--muted);
}

.group-list,
.task-list {
    display: grid;
    align-content: start;
    gap: 8px;
    overflow: auto;
}

.group-list.is-over-desktop-limit {
    max-height: 548px;
    padding-right: 4px;
    border-top: 1px solid rgba(111, 126, 230, 0.16);
    border-bottom: 1px solid rgba(111, 126, 230, 0.16);
}

.task-list.is-over-desktop-limit {
    max-height: 548px;
    padding-right: 4px;
    border-top: 1px solid rgba(111, 126, 230, 0.16);
    border-bottom: 1px solid rgba(111, 126, 230, 0.16);
}

.group-tab {
    width: 100%;
    padding: 10px 11px;
    display: grid;
    gap: 4px;
    text-align: left;
    color: var(--text);
    border: 1px solid rgba(111, 126, 230, 0.12);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.035);
}

.group-tab:hover,
.group-tab:focus-visible,
.group-tab.is-active {
    border-color: var(--indigo);
    background: rgba(111, 126, 230, 0.065);
    outline: none;
}

.group-tab strong {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.group-tab span,
.task-item small {
    color: var(--muted);
    font-size: 0.82rem;
}

.task-panel {
    min-width: 0;
    padding: clamp(16px, 3vw, 26px);
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr) auto;
    gap: 16px;
}

.toolbar-actions,
.export-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

.export-actions strong {
    margin-right: 4px;
}

.toolbar-actions .icon-button {
    flex: 0 0 42px;
}

.task-form {
    align-items: end;
}

.field {
    flex: 1 1 260px;
    display: grid;
    gap: 8px;
}

.field span {
    color: var(--indigo);
    font-size: 0.76rem;
    font-weight: 900;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

input,
select,
textarea {
    width: 100%;
    padding: 10px 12px;
    color: var(--text);
    border: 1px solid rgba(111, 126, 230, 0.22);
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.24);
    outline: none;
}

input {
    min-height: 46px;
}

select {
    min-height: 46px;
    cursor: pointer;
}

select option {
    color: var(--text);
    background: #0b101a;
}

textarea {
    min-height: 116px;
    resize: vertical;
    line-height: 1.55;
}

input:focus,
select:focus {
    border-color: var(--indigo);
    box-shadow: 0 0 0 3px rgba(111, 126, 230, 0.085);
}

textarea:focus {
    border-color: var(--indigo);
    box-shadow: 0 0 0 3px rgba(111, 126, 230, 0.085);
}

.task-item {
    padding: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    border: 1px solid rgba(111, 126, 230, 0.12);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.035);
    cursor: grab;
    transition: background 160ms ease, border-color 160ms ease;
}

.task-item:active {
    cursor: grabbing;
}

.task-item.is-selected {
    border-color: rgba(111, 126, 230, 0.5);
    background:
        linear-gradient(135deg, rgba(111, 126, 230, 0.12), rgba(99, 201, 130, 0.07)),
        rgba(111, 126, 230, 0.08);
}

.task-item.is-dragged {
    opacity: 0.52;
}

.task-item.is-drop-before {
    border-top-color: var(--indigo);
    box-shadow: inset 0 3px 0 rgba(111, 126, 230, 0.68);
}

.task-item.is-drop-after {
    border-bottom-color: var(--indigo);
    box-shadow: inset 0 -3px 0 rgba(111, 126, 230, 0.68);
}

.task-list.is-dragging .task-item:not(.is-dragged) {
    transition: background 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.task-content {
    min-width: 0;
}

.task-title-row {
    display: flex;
    align-items: center;
    gap: 9px;
}

.task-complete {
    width: 21px;
    height: 21px;
    flex: 0 0 21px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #061016;
    border: 1px solid rgba(111, 126, 230, 0.42);
    border-radius: 999px;
    background: rgba(111, 126, 230, 0.05);
}

.task-complete .bi {
    font-size: 0.78rem;
}

.task-item.is-completed {
    border-color: rgba(99, 201, 130, 0.3);
    background: rgba(99, 201, 130, 0.045);
}

.task-item.is-completed .task-complete {
    background: linear-gradient(135deg, rgba(99, 201, 130, 0.9), rgba(105, 211, 190, 0.7));
}

.task-item.is-completed strong {
    color: #8be49f;
    text-decoration: line-through;
    text-decoration-thickness: 2px;
    text-decoration-color: rgba(139, 228, 159, 0.68);
}

.task-item strong {
    display: block;
    overflow-wrap: anywhere;
}

.task-created-at {
    margin-top: 6px;
    display: inline-flex;
    color: #82dbc5;
    font-size: 0.78rem;
    font-weight: 800;
}

.task-actions {
    flex: 0 0 auto;
    cursor: default;
}

.empty-state {
    margin: 0;
    padding: 16px;
    color: var(--muted);
    border: 1px dashed rgba(111, 126, 230, 0.18);
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.14);
}

.button-primary,
.button-import,
.button-secondary,
.button-danger,
.icon-button {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    font-weight: 900;
    text-transform: uppercase;
}

.button-primary,
.button-import,
.button-secondary,
.button-danger {
    padding: 9px 13px;
}

.button-primary {
    color: #0b0e15;
    border: 1px solid rgba(111, 126, 230, 0.3);
    background: linear-gradient(135deg, var(--indigo), var(--green));
    box-shadow:
        inset 0 -3px 0 rgba(0, 0, 0, 0.24),
        0 4px 0 rgba(38, 34, 88, 0.42);
}

.button-secondary {
    color: var(--text);
    border: 1px solid rgba(111, 126, 230, 0.2);
    background: rgba(111, 126, 230, 0.065);
    box-shadow:
        inset 0 -3px 0 rgba(0, 0, 0, 0.18),
        0 4px 0 rgba(0, 0, 0, 0.3);
}

.export-actions .button-secondary {
    color: #17130a;
    border-color: rgba(111, 126, 230, 0.38);
    background:
        linear-gradient(135deg, rgba(111, 126, 230, 0.78), rgba(99, 201, 130, 0.62)),
        rgba(12, 40, 34, 0.72);
    box-shadow:
        inset 0 -3px 0 rgba(0, 0, 0, 0.2),
        0 4px 0 rgba(38, 34, 88, 0.34);
}

#createGroup {
    color: #08111a;
    border-color: rgba(130, 219, 197, 0.5);
    background:
        linear-gradient(135deg, rgba(130, 219, 197, 0.92), rgba(111, 126, 230, 0.7)),
        #18342f;
    box-shadow:
        inset 0 -3px 0 rgba(0, 0, 0, 0.22),
        0 4px 0 rgba(28, 76, 68, 0.46);
}

.button-import {
    color: #061016;
    border: 1px solid rgba(111, 126, 230, 0.36);
    background:
        linear-gradient(135deg, rgba(111, 126, 230, 0.86), rgba(99, 201, 130, 0.72)),
        #102119;
    box-shadow:
        inset 0 -3px 0 rgba(0, 0, 0, 0.24),
        0 4px 0 rgba(38, 34, 88, 0.38);
}

.button-danger {
    color: #fff2f5;
    border: 1px solid rgba(229, 92, 112, 0.5);
    background:
        linear-gradient(135deg, rgba(229, 92, 112, 0.86), rgba(166, 39, 58, 0.82)),
        #240a12;
    box-shadow:
        inset 0 -3px 0 rgba(0, 0, 0, 0.22),
        0 4px 0 rgba(78, 18, 30, 0.48);
}

.button-secondary:disabled,
.button-danger:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.icon-button {
    width: 42px;
    padding: 0;
    color: var(--text);
    border: 1px solid rgba(111, 126, 230, 0.2);
    background: rgba(111, 126, 230, 0.065);
    box-shadow:
        inset 0 -3px 0 rgba(0, 0, 0, 0.18),
        0 4px 0 rgba(0, 0, 0, 0.3);
}

.icon-button--rename {
    color: #061016;
    border-color: rgba(111, 126, 230, 0.34);
    background: linear-gradient(135deg, var(--indigo), var(--green));
    box-shadow:
        inset 0 -3px 0 rgba(0, 0, 0, 0.24),
        0 4px 0 rgba(38, 34, 88, 0.38);
}

.icon-button--rename:disabled {
    opacity: 0.42;
    cursor: not-allowed;
}

.icon-button--info {
    color: #061016;
    border-color: rgba(96, 190, 224, 0.36);
    background:
        linear-gradient(135deg, rgba(96, 190, 224, 0.76), rgba(111, 126, 230, 0.58)),
        #10212c;
    box-shadow:
        inset 0 -3px 0 rgba(0, 0, 0, 0.22),
        0 4px 0 rgba(8, 46, 66, 0.42);
}

.icon-button--info:disabled {
    opacity: 0.36;
    cursor: not-allowed;
}

.icon-button.icon-button--danger {
    color: #fff2f5;
    border-color: rgba(229, 92, 112, 0.58);
    background:
        linear-gradient(135deg, rgba(229, 92, 112, 0.9), rgba(166, 39, 58, 0.86)),
        #240a12;
    box-shadow:
        inset 0 -3px 0 rgba(0, 0, 0, 0.24),
        0 4px 0 rgba(78, 18, 30, 0.52);
}

.icon-button.icon-button--danger:disabled {
    opacity: 0.42;
    cursor: not-allowed;
}

.button-primary:active,
.button-import:active,
.button-secondary:active,
.button-danger:active,
.button-export-all:active,
.icon-button:active,
.task-dialog__close:active {
    box-shadow:
        inset 0 -1px 0 rgba(0, 0, 0, 0.24),
        0 2px 0 rgba(0, 0, 0, 0.32);
    transform: translateY(2px);
}

.bi {
    font-size: 1rem;
    line-height: 1;
}

.info-panel {
    margin-top: 18px;
    padding: clamp(18px, 4vw, 30px);
}

.info-panel h2 {
    margin: 0 0 12px;
    color: var(--indigo);
}

.info-panel p {
    margin: 12px 0 0;
    color: var(--muted);
}

.privacy-note {
    padding: 10px 12px;
    border-left: 3px solid var(--indigo);
    background: rgba(111, 126, 230, 0.045);
    border-radius: 6px;
}

.task-dialog {
    width: min(460px, calc(100% - 32px));
    padding: 0;
    color: var(--text);
    border: 1px solid rgba(111, 126, 230, 0.24);
    border-radius: var(--radius);
    background:
        linear-gradient(135deg, rgba(111, 126, 230, 0.075), rgba(99, 201, 130, 0.04)),
        var(--panel);
    box-shadow: 0 18px 52px rgba(0, 0, 0, 0.58);
}

.task-dialog::backdrop {
    background: rgba(2, 5, 12, 0.72);
}

.task-dialog__panel {
    padding: 20px;
    display: grid;
    gap: 14px;
}

.task-dialog__header,
.task-dialog__actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.task-dialog h2 {
    margin: 0;
    color: var(--indigo);
    font-size: 1rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.task-dialog p {
    margin: 0;
    color: var(--muted);
}

.task-dialog.is-rename-dialog #taskDialogMessage {
    display: none;
}

.task-dialog.is-rename-dialog #taskDialogCancel {
    color: #fff2f5;
    border-color: rgba(229, 92, 112, 0.48);
    background:
        linear-gradient(135deg, rgba(229, 92, 112, 0.18), rgba(166, 39, 58, 0.22)),
        rgba(36, 10, 18, 0.88);
    box-shadow:
        inset 0 -3px 0 rgba(0, 0, 0, 0.2),
        0 4px 0 rgba(78, 18, 30, 0.42);
}

.task-dialog.is-rename-dialog #taskDialogCancel:hover {
    border-color: rgba(255, 133, 150, 0.72);
    background:
        linear-gradient(135deg, rgba(255, 111, 136, 0.26), rgba(194, 46, 69, 0.3)),
        rgba(36, 10, 18, 0.92);
}

.task-dialog:not(.is-rename-dialog) #taskDialogMessage {
    white-space: pre-wrap;
}

.task-dialog__field {
    display: grid;
    gap: 8px;
}

.task-dialog__field[hidden] {
    display: none;
}

.task-dialog__actions button[hidden] {
    display: none;
}

.task-dialog__field span {
    color: var(--indigo);
    font-size: 0.76rem;
    font-weight: 900;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.task-dialog .task-dialog__error {
    min-height: 1.2em;
    color: #ffd5dc;
    font-weight: 800;
}

.task-dialog__close {
    width: 34px;
    height: 34px;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.82);
    border-radius: 6px;
    background: var(--danger);
    box-shadow:
        inset 0 -3px 0 rgba(0, 0, 0, 0.22),
        0 4px 0 rgba(78, 18, 30, 0.48);
    font-weight: 900;
}

.task-dialog.is-description-dialog .task-dialog__close {
    display: none;
}

.task-dialog.is-export-dialog #taskDialogCancel {
    display: none;
}

#taskDialogSecondary {
    display: none;
}

.task-dialog.is-export-dialog #taskDialogSecondary:not([hidden]) {
    display: inline-flex;
}

.button-export-all {
    min-height: 42px;
    padding: 9px 13px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #17130a;
    border: 1px solid rgba(214, 177, 106, 0.54);
    border-radius: 6px;
    background: rgba(214, 177, 106, 0.68);
    box-shadow:
        inset 0 -3px 0 rgba(0, 0, 0, 0.24),
        0 4px 0 rgba(78, 54, 20, 0.42);
    font-weight: 900;
    text-transform: uppercase;
}

.task-dialog__actions {
    justify-content: flex-end;
}

.noscript-alert {
    width: min(1080px, calc(100% - 32px));
    margin: 16px auto 0;
    padding: 12px 14px;
    color: #ffe1e8;
    border: 1px solid rgba(255, 116, 137, 0.36);
    border-radius: var(--radius);
    background: rgba(255, 79, 109, 0.12);
}

@keyframes cursor-blink {
    50% {
        opacity: 0;
    }
}

@media (max-width: 840px) {
    .task-board {
        grid-template-columns: 1fr;
    }

    .group-panel {
        border-right: 0;
        border-bottom: 1px solid rgba(111, 126, 230, 0.14);
    }

    .task-toolbar,
    .task-form,
    .export-panel {
        align-items: stretch;
        flex-direction: column;
    }

    .task-form .field {
        flex: 0 0 auto;
    }

    .toolbar-actions,
    .export-actions,
    .button-primary,
    .button-import,
    .button-secondary,
    .button-danger {
        width: 100%;
    }

    .toolbar-actions .icon-button {
        flex: 0 0 42px;
    }

    .export-actions > * {
        flex: 1 1 0;
    }

    .group-list.is-over-mobile-limit {
        max-height: 228px;
        padding-right: 4px;
        border-top: 1px solid rgba(111, 126, 230, 0.16);
        border-bottom: 1px solid rgba(111, 126, 230, 0.16);
    }

    .task-list.is-over-mobile-limit {
        max-height: 328px;
        padding-right: 4px;
        border-top: 1px solid rgba(111, 126, 230, 0.16);
        border-bottom: 1px solid rgba(111, 126, 230, 0.16);
    }
}

@media (min-width: 768px) and (max-width: 840px) {
    .task-form {
        align-items: end;
        flex-direction: row;
    }

    .task-form .field {
        flex: 1 1 auto;
    }

    .task-form .button-primary {
        width: auto;
        flex: 0 0 auto;
    }
}

@media (max-width: 760px) {
    .task-shell {
        width: calc(100% - 20px);
    }

    .task-item {
        align-items: stretch;
        flex-direction: column;
    }

    body {
        padding-bottom: 0;
    }
}

@media (max-width: 425px) {
    .task-form {
        position: relative;
        gap: 12px;
        padding-top: 18px;
    }

    .task-form::before {
        content: "";
        position: absolute;
        top: 0;
        right: 12px;
        left: 12px;
        height: 2px;
        background: linear-gradient(90deg, transparent, rgba(111, 126, 230, 0.46), transparent);
    }

    .toolbar-actions {
        justify-content: flex-end;
    }

    .toolbar-actions #renameGroup {
        margin-right: auto;
    }

    .task-form label.field {
        width: 100%;
        max-width: 100%;
        display: grid;
        flex: 0 0 auto;
        gap: 7px;
    }

    .task-form label.field span {
        text-align: center;
    }

    .task-form label.field input {
        min-height: 34px;
        width: 100%;
        padding: 5px 8px;
    }

    .task-form .button-primary {
        width: auto;
        margin: 4px auto;
        padding-right: 16px;
        padding-left: 16px;
    }

    .task-item {
        align-items: stretch;
        flex-direction: column;
    }

    .task-actions {
        width: 100%;
        margin-left: auto;
        justify-content: flex-end;
    }

    .task-actions .icon-button--rename {
        order: -1;
        margin-right: auto;
    }

    .task-actions .icon-button,
    .toolbar-actions .icon-button,
    #createGroup {
        width: 36px;
        min-height: 36px;
        flex-basis: 36px;
    }

    .task-actions .bi,
    .toolbar-actions .bi,
    #createGroup .bi {
        font-size: 0.9rem;
    }

    .button-primary,
    .button-import,
    .button-secondary,
    .button-export-all {
        min-height: 38px;
        padding: 7px 11px;
        font-size: 0.92rem;
    }

    .task-dialog.is-export-dialog .task-dialog__actions {
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }

    .task-dialog.is-export-dialog #taskDialogConfirm,
    .task-dialog.is-export-dialog #taskDialogSecondary {
        width: 100%;
        min-width: 0;
        padding-right: 8px;
        padding-left: 8px;
        white-space: normal;
        overflow-wrap: anywhere;
        text-align: center;
        line-height: 1.15;
    }
}

.task-created,
.storage-alert,
.task-dialog__message {
    font-family: var(--font-data), "Cascadia Mono", "Segoe UI", monospace;
}