:root {
    --color-antique-white: #F4EADE;
    --color-outer-bg: #FAF7F2;
    --color-peru: #BE9860;
    --color-gray: #857A6F;
    --color-maroon: #421B0B;
    --color-midnight-blue: #2B2D42;

    --font-serif: "Source Serif 4", Georgia, serif;
    --font-sans: "IBM Plex Sans", Arial, sans-serif;

    --border-color: rgba(43, 45, 66, 0.24);
    --border-strong: rgba(43, 45, 66, 0.48);

    --space-xs: 0.35rem;
    --space-sm: 0.65rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2.25rem;
    --space-xxl: 3rem;

    --radius-small: 3px;
    --radius-medium: 5px;

    --content-width: 1180px;
}


/* --------------------------------------------------
   Base
-------------------------------------------------- */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    margin: 0;
    min-height: 100vh;

    background: var(--color-outer-bg);
    color: var(--color-midnight-blue);

    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.5;
}

a {
    color: inherit;
}

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


/* --------------------------------------------------
   Application shell
-------------------------------------------------- */

.app-shell {
    width: min(
        calc(100% - 3rem),
        var(--content-width)
    );

    min-height: 100vh;
    margin: 0 auto;

    display: flex;
    flex-direction: column;

    padding-top: var(--space-xl);
    padding-bottom: var(--space-lg);
}


/* --------------------------------------------------
   Identity
-------------------------------------------------- */

.app-header {
    margin-bottom: var(--space-xl);
}

.identity {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.app-name {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 600;
    line-height: 1;

    letter-spacing: -0.025em;
}

.user-context {
    margin-top: var(--space-sm);

    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.35rem;

    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 400;

    color: var(--color-gray);
}

.user-context span {
    margin: 0 0.35rem;
}


/* --------------------------------------------------
   Primary navigation
-------------------------------------------------- */

.primary-navigation {
    display: grid;
    grid-template-columns: repeat(3, 1fr);

    gap: var(--space-sm);

    margin-bottom: 0;
}

.nav-tab {
    display: flex;
    justify-content: center;
    align-items: center;

    min-height: 3.25rem;
    padding: 0.75rem 1rem;

    border: 1px solid var(--border-strong);
    border-bottom: none;

    border-radius:
        var(--radius-small)
        var(--radius-small)
        0
        0;

    color: var(--color-midnight-blue);
    background: transparent;

    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0;
    text-decoration: none;

    transition:
        background-color 120ms ease,
        color 120ms ease,
        border-color 120ms ease;
}

.nav-tab:hover {
    background: rgba(190, 152, 96, 0.12);
}

.nav-tab.active {
    background: var(--color-midnight-blue);
    color: var(--color-antique-white);
    border-color: var(--color-midnight-blue);
}


/* --------------------------------------------------
   Main workspace
-------------------------------------------------- */

.workspace {
    position: relative;

    flex: 1;

    min-height: 520px;
    padding: var(--space-xl);

    border: 1px solid var(--border-strong);

    background: var(--color-antique-white);
}

.workspace > :first-child {
    margin-top: 0;
}


/* --------------------------------------------------
   Footer / Review
-------------------------------------------------- */

.app-footer {
    display: flex;
    justify-content: flex-end;

    padding-top: var(--space-md);
}

.review-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-width: 7rem;
    min-height: 2.5rem;
    padding: 0.5rem 1rem;

    border: 1px solid var(--border-strong);
    border-radius: var(--radius-small);

    background: transparent;

    color: var(--color-midnight-blue);

    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;

    transition:
        background-color 120ms ease,
        color 120ms ease;
}

.review-link:hover {
    background: var(--color-midnight-blue);
    color: var(--color-antique-white);
}


/* --------------------------------------------------
   Shared headings
-------------------------------------------------- */

h1,
h2,
h3,
h4 {
    margin-top: 0;

    color: var(--color-midnight-blue);
}

h1,
h2 {
    font-family: var(--font-serif);
    font-weight: 600;
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.5rem;
}

h3,
h4 {
    font-family: var(--font-sans);
    font-weight: 600;
}


/* --------------------------------------------------
   Forms
-------------------------------------------------- */

input,
textarea,
select {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-small);

    background: rgba(255, 255, 255, 0.28);
    color: var(--color-midnight-blue);

    padding: 0.45rem 0.6rem;

    outline: none;
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--color-maroon);
    box-shadow: 0 0 0 1px var(--color-maroon);
}

textarea {
    resize: vertical;
}

.task-inline-edit {
    display: inline-flex;
    align-items: center;

    gap: 0.4rem;
}

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

.task-inline-edit input {
    width: min(24rem, 50vw);

    padding: 0.3rem 0.5rem;
}

.task-inline-edit button {
    min-height: 1.9rem;

    padding: 0.2rem 0.5rem;

    font-size: 0.82rem;
}

/* --------------------------------------------------
   Buttons
-------------------------------------------------- */

button,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 2.25rem;
    padding: 0.4rem 0.75rem;

    border: 1px solid var(--border-strong);
    border-radius: var(--radius-small);

    background: transparent;
    color: var(--color-midnight-blue);

    cursor: pointer;

    font-weight: 500;

    transition:
        background-color 120ms ease,
        color 120ms ease,
        border-color 120ms ease;
}

button:hover,
.button:hover {
    background: rgba(190, 152, 96, 0.16);
}

button:focus-visible,
.button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--color-maroon);
    outline-offset: 3px;
}


/* --------------------------------------------------
   Strong / committed actions
-------------------------------------------------- */

.button-primary,
button.primary,
button[type="submit"].primary {
    background: var(--color-maroon);
    border-color: var(--color-maroon);
    color: var(--color-antique-white);
}

.button-primary:hover,
button.primary:hover,
button[type="submit"].primary:hover {
    background: var(--color-midnight-blue);
    border-color: var(--color-midnight-blue);
}


/* --------------------------------------------------
   Task List
-------------------------------------------------- */

.task-list-page {
    min-height: 100%;
}

.task-list-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;

    gap: var(--space-lg);

    margin-bottom: var(--space-xl);
}

.task-list-heading {
    margin: 0;

    font-family: var(--font-serif);
    font-size: 1.65rem;
    font-weight: 600;
}

.inactive-toggle {
    display: inline-flex;
    align-items: center;

    gap: 0.5rem;

    color: var(--color-gray);

    font-size: 0.88rem;

    cursor: pointer;
}

.inactive-toggle input {
    margin: 0;
}


/* --------------------------------------------------
   Today's Tasks — refinement pass
-------------------------------------------------- */

.today-page-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;

    gap: var(--space-lg);

    margin-bottom: var(--space-lg);
}

.today-heading {
    margin: 0;

    font-size: 1.65rem;
}

.today-selected-date {
    margin-top: 0.2rem;

    color: var(--color-gray);

    font-family: var(--font-sans);
    font-size: 0.9rem;
}


/* Date navigation */

.date-navigation {
    display: flex;
    align-items: center;

    gap: 0.2rem;

    margin-bottom: 0.05rem;
}

.date-nav-link {
    display: inline-flex;
    align-items: center;

    min-height: 1.9rem;

    padding: 0.25rem 0.55rem;

    border: 1px solid transparent;
    border-radius: var(--radius-small);

    color: var(--color-gray);

    font-size: 0.83rem;
    font-weight: 500;

    text-decoration: none;
}

.date-nav-link:hover {
    border-color: var(--border-color);

    color: var(--color-midnight-blue);
}


/* Two panes */

.today-workspace {
    display: grid;

    grid-template-columns:
        minmax(0, 1fr)
        minmax(0, 1.08fr);

    gap: var(--space-lg);

    min-height: 430px;
}

.today-pane {
    min-width: 0;

    max-height: 540px;

    overflow-y: auto;

    padding: var(--space-lg);

    border: 1px solid var(--border-color);

    background: rgba(255, 255, 255, 0.10);
}

.today-pane-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;

    gap: var(--space-md);

    position: sticky;
    top: 0;

    z-index: 2;

    margin:
        calc(var(--space-lg) * -1)
        calc(var(--space-lg) * -1)
        var(--space-lg);

    padding:
        0.9rem
        var(--space-lg);

    border-bottom: 1px solid var(--border-color);

    background: var(--color-antique-white);
}

.today-pane-header h2 {
    margin: 0;

    font-family: var(--font-serif);
    font-size: 1.15rem;
}

.today-pane-note {
    color: var(--color-gray);

    font-size: 0.74rem;
}


/* Left-side tree */

.today-tree-row {
    display: flex;
    align-items: center;

    gap: 0.65rem;

    min-height: 2.35rem;

    padding: 0.12rem 0;
}

.today-tree-title {
    min-width: 0;

    font-size: 0.92rem;
    font-weight: 500;

    overflow-wrap: anywhere;
}

.today-tree-item-selected > .today-tree-row {
    position: relative;
}

.today-tree-item-selected > .today-tree-row::before {
    content: "";

    position: absolute;

    left: -0.7rem;
    top: 0.35rem;
    bottom: 0.35rem;

    width: 2px;

    background: var(--color-peru);
}

.today-tree-item-selected > .today-tree-row
.today-tree-title {
    font-weight: 600;
}


/* Carry-forward */

.today-tree-item-carry > .today-tree-row {
    opacity: 0.78;
}

.carry-forward-marker {
    margin-left: auto;

    color: var(--color-gray);

    font-size: 0.7rem;
    font-style: italic;

    white-space: nowrap;
}


/* Right-side execution queue */

.today-queue-item {
    display: grid;

    grid-template-columns:
        auto
        minmax(0, 1fr)
        11.5rem;

    align-items: center;

    gap: 0.85rem;

    min-height: 3.8rem;

    padding: 0.65rem 0;

    border-bottom: 1px solid var(--border-color);
}

.queue-order-controls {
    display: flex;
    align-items: center;

    gap: 0;
}

.queue-arrow {
    width: 1.45rem;
    min-width: 1.45rem;
    height: 1.7rem;
    min-height: 1.7rem;

    padding: 0;

    border-color: transparent;

    background: transparent;

    color: var(--color-gray);

    font-size: 0.9rem;
}

.queue-task-title {
    min-width: 0;

    font-size: 0.94rem;
    font-weight: 600;
    line-height: 1.35;

    overflow-wrap: anywhere;
}


/* Session commitment */

.queue-session-form {
    display: grid;

    grid-template-columns:
        auto
        3rem
        auto;

    align-items: center;

    justify-content: end;

    gap: 0.4rem;

    margin: 0;
}

.session-label {
    color: var(--color-gray);

    font-size: 0.72rem;

    white-space: nowrap;
}

.session-count-input {
    width: 3rem;

    padding: 0.25rem 0.3rem;

    text-align: center;
}

.queue-commit {
    min-height: 1.85rem;

    padding: 0.2rem 0.5rem;

    border-color: var(--color-maroon);

    color: var(--color-maroon);

    font-size: 0.75rem;
}

.queue-commit:hover {
    background: var(--color-maroon);

    color: var(--color-antique-white);
}


/* Responsive */

@media (max-width: 900px) {

    .today-page-header {
        align-items: flex-start;
        flex-direction: column;

        gap: var(--space-md);
    }

    .today-workspace {
        grid-template-columns: 1fr;
    }

    .today-pane {
        max-height: none;

        overflow-y: visible;
    }

}

@media (max-width: 600px) {

    .date-navigation {
        width: 100%;

        justify-content: space-between;
    }

    .today-pane {
        padding: var(--space-md);
    }

    .today-pane-header {
        margin:
            calc(var(--space-md) * -1)
            calc(var(--space-md) * -1)
            var(--space-md);

        padding: var(--space-md);
    }

    .today-queue-item {
        grid-template-columns:
            auto
            minmax(0, 1fr);
    }

    .queue-session-form {
        grid-column: 2;

        grid-template-columns:
            auto
            3rem
            auto;

        justify-content: start;
    }

    .carry-forward-marker {
        display: none;
    }

}


/* --------------------------------------------------
   Source Task tree
-------------------------------------------------- */

.today-task-tree,
.today-tree-children {
    margin: 0;
    padding: 0;

    list-style: none;
}

.today-tree-children {
    position: relative;

    margin-left: 1.1rem;
    padding-left: 1.35rem;
}

.today-tree-children::before {
    content: "";

    position: absolute;

    top: 0.2rem;
    bottom: 1.25rem;
    left: 0.35rem;

    width: 1px;

    background: var(--border-color);
}

.today-tree-item {
    position: relative;
}

.today-tree-children > .today-tree-item::before {
    content: "";

    position: absolute;

    top: 1.2rem;
    left: -1rem;

    width: 1rem;
    height: 1px;

    background: var(--border-color);
}

.today-tree-row {
    display: flex;
    align-items: center;

    gap: 0.65rem;

    min-height: 2.4rem;

    padding: 0.15rem 0;
}

.today-checkbox-form {
    display: flex;
    align-items: center;

    flex: 0 0 auto;

    margin: 0;
}

.today-selector-checkbox {
    appearance: none;

    width: 1rem;
    height: 1rem;

    margin: 0;
    padding: 0;

    border: 1px solid var(--border-strong);
    border-radius: 1px;

    background: transparent;

    cursor: pointer;
}

.today-selector-checkbox:checked {
    position: relative;

    border-color: var(--color-midnight-blue);

    background: var(--color-midnight-blue);
}

.today-selector-checkbox:checked::after {
    content: "✓";

    position: absolute;

    inset: -0.23rem 0 0;

    color: var(--color-antique-white);

    font-size: 0.82rem;
    font-weight: 700;

    text-align: center;
}

.today-tree-title {
    min-width: 0;

    font-size: 0.92rem;
    font-weight: 500;

    overflow-wrap: anywhere;
}

.today-tree-item-selected > .today-tree-row
.today-tree-title {
    font-weight: 600;
}


/* --------------------------------------------------
   Carry-forward marker
-------------------------------------------------- */

.today-tree-item-carry > .today-tree-row {
    opacity: 0.7;
}

.carry-forward-marker {
    margin-left: auto;

    color: var(--color-gray);

    font-size: 0.7rem;
    font-style: italic;

    white-space: nowrap;

    opacity: 0.85;
}


/* --------------------------------------------------
   Today execution queue
-------------------------------------------------- */

.today-queue {
    margin: 0;
    padding: 0;

    list-style: none;
}

.today-queue-item {
    display: grid;

    grid-template-columns:
        auto
        minmax(0, 1fr)
        auto;

    align-items: center;

    gap: var(--space-md);

    min-height: 3.5rem;

    padding: 0.55rem 0;

    border-bottom: 1px solid var(--border-color);
}

.today-queue-item:first-child {
    padding-top: 0;
}

.today-queue-item:last-child {
    border-bottom: none;
}

.queue-order-controls {
    display: flex;
    align-items: center;

    gap: 0.1rem;
}

.queue-order-controls form {
    margin: 0;
}

.queue-arrow {
    width: 1.6rem;
    min-width: 1.6rem;
    height: 1.8rem;
    min-height: 1.8rem;

    padding: 0;

    border-color: transparent;

    background: transparent;

    color: var(--color-gray);

    font-size: 0.95rem;
}

.queue-arrow:hover:not(:disabled) {
    border-color: var(--border-color);

    color: var(--color-midnight-blue);
}

.queue-arrow:disabled {
    opacity: 0.22;

    cursor: default;
}

.queue-task-title {
    min-width: 0;

    font-size: 0.93rem;
    font-weight: 600;

    overflow-wrap: anywhere;
}


/* --------------------------------------------------
   Session commitment
-------------------------------------------------- */

.queue-session-form {
    display: flex;
    align-items: center;

    gap: 0.45rem;

    margin: 0;
}

.session-label {
    color: var(--color-gray);

    font-size: 0.78rem;
}

.session-count-input {
    width: 3.2rem;

    padding: 0.3rem 0.35rem;

    text-align: center;
}

.queue-commit {
    min-height: 1.9rem;

    padding: 0.25rem 0.55rem;

    border-color: var(--color-maroon);

    color: var(--color-maroon);

    font-size: 0.78rem;
}

.queue-commit:hover {
    background: var(--color-maroon);

    color: var(--color-antique-white);
}


/* --------------------------------------------------
   Empty states
-------------------------------------------------- */

.today-empty,
.today-empty-state {
    color: var(--color-gray);

    font-size: 0.9rem;
}

.today-empty-state {
    padding-top: var(--space-lg);

    text-align: center;
}

.today-empty-state p {
    margin: 0.3rem 0;
}


/* --------------------------------------------------
   Responsive Today
-------------------------------------------------- */

@media (max-width: 900px) {

    .today-page-header {
        align-items: flex-start;
        flex-direction: column;

        gap: var(--space-md);
    }

    .today-workspace {
        grid-template-columns: 1fr;
    }

    .today-pane {
        max-height: none;

        overflow-y: visible;
    }

}


@media (max-width: 600px) {

    .date-navigation {
        width: 100%;

        justify-content: space-between;
    }

    .today-pane {
        padding: var(--space-md);
    }

    .today-pane-header {
        margin:
            calc(var(--space-md) * -1)
            calc(var(--space-md) * -1)
            var(--space-md);

        padding: var(--space-md);
    }

    .today-queue-item {
        grid-template-columns:
            auto
            minmax(0, 1fr);

        gap: var(--space-sm);
    }

    .queue-session-form {
        grid-column: 2;

        justify-content: flex-start;
    }

    .carry-forward-marker {
        display: none;
    }

}


/* --------------------------------------------------
   Task tree
-------------------------------------------------- */

.task-list {
    width: 100%;
}

.task-tree,
.task-children {
    list-style: none;

    margin: 0;
    padding: 0;
}

.task-tree {
    width: 100%;
}


/*
   Each nested list creates the vertical part
   of the hierarchy line.
*/

.task-children {
    position: relative;

    margin-left: 2.1rem;
    padding-left: 1.6rem;
}

.task-children::before {
    content: "";

    position: absolute;

    top: 0;
    bottom: 1.4rem;
    left: 0.45rem;

    width: 1px;

    background: var(--border-color);
}


/*
   Each child gets a horizontal branch joining
   it to the vertical hierarchy line.
*/

.task-children > .task-item {
    position: relative;
}

.task-children > .task-item::before {
    content: "";

    position: absolute;

    top: 1.45rem;
    left: -1.15rem;

    width: 1.15rem;
    height: 1px;

    background: var(--border-color);
}


/* --------------------------------------------------
   Individual task
-------------------------------------------------- */

.task-item {
    margin: 0;
    padding: 0;
}

.task-row {
    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: var(--space-lg);

    min-height: 2.9rem;

    margin: 0;
}

.task-row-main {
    display: flex;
    align-items: center;

    min-width: 0;

    gap: 0.75rem;
}

.task-title {
    min-width: 0;

    color: var(--color-midnight-blue);

    font-size: 1rem;
    font-weight: 500;

    overflow-wrap: anywhere;
}


/* --------------------------------------------------
   Compact task actions
-------------------------------------------------- */

.task-action-group {
    display: inline-flex;
    align-items: center;

    flex: 0 0 auto;

    gap: 0.2rem;
}

.task-icon-button {
    width: 1.75rem;
    min-width: 1.75rem;
    height: 1.75rem;
    min-height: 1.75rem;

    padding: 0;

    border-color: transparent;

    background: transparent;

    color: var(--color-gray);

    font-size: 0.95rem;
    font-weight: 600;

    line-height: 1;
}

.task-icon-button:hover {
    border-color: var(--border-color);

    background: rgba(190, 152, 96, 0.13);

    color: var(--color-midnight-blue);
}


/* --------------------------------------------------
   Subtask action
-------------------------------------------------- */

.subtask-toggle,
.new-task-toggle {
    min-height: auto;

    padding: 0.2rem 0;

    border: none;

    background: transparent;

    color: var(--color-maroon);

    font-size: 0.88rem;
    font-weight: 500;

    white-space: nowrap;
}

.subtask-toggle:hover,
.new-task-toggle:hover {
    background: transparent;

    text-decoration: underline;
}


/* --------------------------------------------------
   Task confirmation
-------------------------------------------------- */

.task-confirmation {
    display: flex;
    align-items: center;

    gap: 0.5rem;

    width: fit-content;

    margin:
        0.15rem
        0
        0.55rem
        5.55rem;

    padding:
        0.55rem
        0.7rem;

    border-left: 2px solid var(--color-peru);

    background: rgba(190, 152, 96, 0.09);

    font-size: 0.88rem;
}

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

.task-confirmation-cancel {
    border-left-color: var(--color-maroon);
}

.task-confirmation-question {
    margin-right: 0.25rem;
}

.task-confirmation button {
    min-height: 1.8rem;

    padding: 0.2rem 0.55rem;

    font-size: 0.82rem;
}

.confirmation-yes {
    border-color: var(--color-maroon);

    color: var(--color-maroon);
}


/* --------------------------------------------------
   Add/edit forms
-------------------------------------------------- */

.subtask-form,
.new-task-form {
    display: flex;
    align-items: center;

    gap: 0.5rem;
}

.subtask-form[hidden],
.new-task-form[hidden] {
    display: none;
}

.subtask-form {
    margin:
        0.2rem
        0
        0.65rem
        5.55rem;
}

.subtask-form input {
    width: min(28rem, 65vw);
}


/* --------------------------------------------------
   New root task
-------------------------------------------------- */

.new-task-area {
    margin-top: var(--space-xl);

    padding-top: var(--space-md);

    border-top: 1px solid var(--border-color);
}

.new-task-toggle {
    font-size: 0.95rem;
}

.new-task-form {
    margin-top: var(--space-sm);
}

.new-task-form input {
    width: min(32rem, 70vw);
}


/* --------------------------------------------------
   Inactive tasks
-------------------------------------------------- */

.task-completed {
    color: var(--color-gray);

    text-decoration: line-through;

    opacity: 0.72;
}

.task-cancelled {
    color: var(--color-gray);

    text-decoration: line-through;

    opacity: 0.58;
}

.task-reopen-button {
    min-height: 1.8rem;

    padding: 0.2rem 0.5rem;

    color: var(--color-gray);

    font-size: 0.78rem;
}


/* --------------------------------------------------
   Responsive Task List
-------------------------------------------------- */

@media (max-width: 760px) {

    .task-list-header {
        align-items: flex-start;
        flex-direction: column;

        gap: var(--space-sm);
    }

    .task-row {
        align-items: flex-start;

        gap: var(--space-sm);
    }

    .task-row-main {
        align-items: flex-start;
    }

    .task-children {
        margin-left: 0.75rem;
        padding-left: 1.2rem;
    }

    .task-children > .task-item::before {
        left: -0.75rem;
        width: 0.75rem;
    }

    .subtask-toggle {
        margin-top: 0.2rem;
    }

    .task-confirmation,
    .subtask-form {
        margin-left: 2.5rem;
    }

    .subtask-form,
    .new-task-form {
        align-items: stretch;
        flex-direction: column;
    }

    .subtask-form input,
    .new-task-form input {
        width: 100%;
    }
}


/* --------------------------------------------------
   Utility classes
-------------------------------------------------- */

.muted {
    color: var(--color-gray);
}

.serif {
    font-family: var(--font-serif);
}

.sans {
    font-family: var(--font-sans);
}


/* --------------------------------------------------
   Responsive
-------------------------------------------------- */

@media (max-width: 760px) {

    .app-shell {
        width: min(
            calc(100% - 1.5rem),
            var(--content-width)
        );

        padding-top: var(--space-lg);
    }

    .app-header {
        margin-bottom: var(--space-lg);
    }

    .app-name {
        font-size: 2.25rem;
    }

    .primary-navigation {
        grid-template-columns: 1fr;
        gap: 0.4rem;

        margin-bottom: var(--space-sm);
    }

    .nav-tab {
        border: 1px solid var(--border-strong);
        border-radius: var(--radius-small);

        min-height: 2.75rem;
    }

    .workspace {
        min-height: 420px;
        padding: var(--space-lg);
    }
}

/* --------------------------------------------------
   Session Timer
-------------------------------------------------- */

.focus-page {
    display: flex;
    justify-content: center;

    width: 100%;
    min-height: 100%;
}

.focus-instrument {
    width: min(100%, 46rem);

    margin: 0 auto;

    padding:
        var(--space-lg)
        var(--space-xl)
        var(--space-xl);

    text-align: center;
}

.focus-header {
    margin-bottom: 1rem;
}

.interrupted-control input[type="checkbox"] {
    accent-color: var(--color-midnight-blue);
}

.focus-state-label {
    margin-bottom: 0.35rem;

    color: var(--color-gray);

    font-size: 0.75rem;
    font-weight: 600;

    letter-spacing: 0.10em;
    text-transform: uppercase;
}

.focus-task-title {
    max-width: 36rem;

    margin:
        0
        auto
        0.35rem;

    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;

    line-height: 1.2;
}

.focus-session-number {
    color: var(--color-gray);

    font-size: 0.85rem;
}


/* Clock */

.focus-clock-area {
    width: min(100%, 34rem);

    margin:
        1.5rem
        auto
        1.4rem;
}

.focus-clock {
    font-family: var(--font-sans);

    font-size: clamp(4.5rem, 11vw, 8rem);
    font-weight: 600;

    line-height: 0.95;

    letter-spacing: -0.055em;

    font-variant-numeric: tabular-nums;
}

.focus-progress-track {
    width: 100%;
    height: 4px;

    margin-top: 1.6rem;

    background:
        rgba(43, 45, 66, 0.16);

    overflow: hidden;
}

.focus-progress-fill {
    width: 0;
    height: 100%;

    background: var(--color-peru);

    transition: width 1s linear;
}


/* Ready */

.focus-start-form {
    display: flex;
    flex-direction: column;
    align-items: center;

    gap: 1.2rem;
}

.session-length-control {
    display: flex;
    align-items: center;

    gap: var(--space-md);

    color: var(--color-gray);

    font-size: 0.85rem;
}

.session-length-input {
    display: flex;
    align-items: center;

    gap: 0.45rem;
}

.session-length-input input {
    width: 4rem;

    text-align: center;
}

.start-focus-button {
    min-width: 10rem;
    min-height: 2.8rem;

    background: var(--color-maroon);
    border-color: var(--color-maroon);

    color: var(--color-antique-white);

    font-weight: 600;
}

.start-focus-button:hover {
    background: var(--color-midnight-blue);
    border-color: var(--color-midnight-blue);
}


/* Running / break */

.running-controls {
    display: flex;
    justify-content: center;
}

.running-controls[hidden] {
    display: none;
}

.end-early-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 2rem;

    padding: 0.3rem 0.65rem;

    border: none;

    background: transparent;

    color: var(--color-gray);

    font-size: 0.82rem;
    font-weight: 500;

    text-decoration: none;

    cursor: pointer;
}

.end-early-button:hover {
    background: transparent;

    color: var(--color-maroon);

    text-decoration: underline;
}


/* Outcome */

.session-outcome {
    width: min(100%, 38rem);

    margin:
        var(--space-xl)
        auto
        0;

    padding-top: var(--space-lg);

    border-top: 1px solid var(--border-color);

    text-align: left;
}

.session-outcome[hidden] {
    display: none;
}

.session-timing-summary {
    display: flex;
    justify-content: center;

    gap: var(--space-xl);

    margin-bottom: var(--space-lg);

    color: var(--color-gray);

    font-size: 0.8rem;
}

.session-timing-summary strong {
    margin-left: 0.25rem;

    color: var(--color-midnight-blue);

    font-weight: 600;
}

.outcome-fieldset {
    margin: 0 0 var(--space-lg);
    padding: 0;

    border: none;
}

.outcome-fieldset legend {
    margin-bottom: 0.55rem;

    color: var(--color-gray);

    font-size: 0.78rem;
    font-weight: 500;
}

.outcome-options {
    display: grid;

    grid-template-columns:
        repeat(5, 1fr);

    gap: 0.4rem;
}

.outcome-option {
    cursor: pointer;
}

.outcome-option input {
    position: absolute;

    width: 1px;
    height: 1px;

    opacity: 0;
    pointer-events: none;
}

.outcome-option span {
    display: flex;
    align-items: center;
    justify-content: center;

    min-height: 2.4rem;

    padding: 0.35rem 0.45rem;

    border: 1px solid var(--border-strong);
    border-radius: var(--radius-small);

    color: var(--color-midnight-blue);

    font-size: 0.78rem;
    font-weight: 500;
}

.outcome-option:hover span {
    background:
        rgba(190, 152, 96, 0.12);
}

.outcome-option input:checked + span {
    border-color: var(--color-midnight-blue);

    background: var(--color-midnight-blue);

    color: var(--color-antique-white);
}

.outcome-option input:focus-visible + span {
    outline: 2px solid var(--color-maroon);
    outline-offset: 3px;
}


/* Interrupted */

.interrupted-control {
    display: inline-flex;
    align-items: center;

    gap: 0.5rem;

    margin-bottom: var(--space-lg);

    font-size: 0.85rem;

    cursor: pointer;
}

.interrupted-control input {
    margin: 0;
}


/* Note */

.session-note-field {
    margin-bottom: var(--space-lg);
}

.session-note-header {
    display: flex;
    justify-content: space-between;

    gap: var(--space-md);

    margin-bottom: 0.4rem;

    font-size: 0.8rem;
}

.note-counter {
    color: var(--color-gray);

    font-variant-numeric: tabular-nums;
}

.session-note-field textarea {
    width: 100%;

    min-height: 4rem;
}


/* Commit */

.commit-session-button {
    width: 100%;

    min-height: 2.7rem;

    background: var(--color-maroon);
    border-color: var(--color-maroon);

    color: var(--color-antique-white);

    font-weight: 600;
}

.commit-session-button:hover {
    background: var(--color-midnight-blue);
    border-color: var(--color-midnight-blue);
}


/* Break */

.break-state {
    padding-top: var(--space-xxl);
}

.break-state .focus-clock-area {
    margin-top: var(--space-lg);
}


/* Empty */

.focus-empty-state {
    padding-top: var(--space-xxl);
}

.focus-empty-state h1 {
    font-family: var(--font-serif);
}

.focus-empty-state p {
    color: var(--color-gray);
}


/* Mobile */

@media (max-width: 650px) {

    .focus-instrument {
        padding:
            var(--space-lg)
            var(--space-md);
    }

    .focus-clock {
        font-size: clamp(4rem, 22vw, 6rem);
    }

    .outcome-options {
        grid-template-columns:
            repeat(2, 1fr);
    }

    .outcome-option:last-child {
        grid-column: 1 / -1;
    }

    .session-length-control {
        align-items: flex-start;
        flex-direction: column;

        gap: 0.4rem;
    }

}


/* --------------------------------------------------
   Login
-------------------------------------------------- */

.login-page {
    width: min(100%, 22rem);
    margin-top: var(--space-xl);
}

.login-form {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
}

.login-label {
    font-weight: 500;
}

.login-form input[type="password"] {
    width: 100%;
    min-height: 2.75rem;
    padding: 0.5rem 0.75rem;

    border: 1px solid var(--border-strong);
    border-radius: var(--radius-small);
    background: #fff;
}

.login-submit {
    margin-top: var(--space-sm);
    min-height: 2.75rem;
}

.login-error {
    margin: 0 0 var(--space-sm);
    color: var(--color-maroon);
    font-weight: 500;
}

.logout-form {
    display: inline;
    margin: 0;
}

.logout-button {
    padding: 0;
    border: none;
    background: none;
    color: var(--color-gray);
    font: inherit;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 0.15em;
}