.wall-board {
    width: min(var(--header-shell-visual-width), 100%);
    margin: 0 auto;
    padding: var(--space-10) var(--space-4) var(--space-16);
    padding-top: calc(var(--space-10) + var(--header-clearance) + var(--space-3) + 1rem - var(--header-shell-lift-offset));
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.wall-board__hero {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    background: linear-gradient(135deg, #fffdf8, #fff4ec);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.wall-board__eyebrow {
    font-size: var(--text-sm);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--neutral-500);
}

.wall-board__hero h1 {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-2);
}

/* Period Tabs */
.wall-board__tabs {
    display: flex;
    gap: var(--space-1);
    margin-top: var(--space-2);
}

.wall-board__tab {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--neutral-600);
    text-decoration: none;
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    transition: all var(--transition-fast);
}

.wall-board__tab:hover {
    color: var(--color-text-primary);
    background: rgba(0, 0, 0, 0.04);
}

.wall-board__tab.is-active {
    color: var(--color-primary);
    background: rgba(255, 90, 0, 0.08);
    border-color: rgba(255, 90, 0, 0.2);
}

.wall-board__hero-cta {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-3);
}

.wall-board__hero-cta button,
.wall-board__hero-cta .wall-board__cta {
    border-radius: var(--radius-full);
    border: none;
    padding: 0.75rem 1.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.wall-board__hero-cta button:first-child,
.wall-board__hero-cta .wall-board__cta:not(.is-ghost) {
    background: var(--color-primary);
    color: var(--color-on-primary);
}

.wall-board__hero-cta .is-ghost {
    background: transparent;
    border: 1px solid var(--color-border-light);
    color: var(--neutral-600);
}

.wall-board__hero-note {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-xl);
    border: 1px dashed rgba(0, 0, 0, 0.08);
    background: rgba(255, 255, 255, 0.8);
    align-items: center;
}

.wall-board__hero-note .material-icons {
    color: var(--color-primary);
}

.wall-overview {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.wall-overview__stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-3);
}

.wall-stat {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-4);
    background: var(--surface-card);
    display: flex;
    gap: var(--space-3);
    align-items: center;
}

.wall-stat__icon {
    width: 44px;
    height: 44px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-50);
    color: var(--color-primary);
    flex-shrink: 0;
}

.wall-stat__icon .material-icons {
    font-size: 20px;
}

.wall-stat__value {
    font-size: var(--text-2xl);
    font-weight: 700;
    letter-spacing: var(--letter-spacing-tight);
}

.wall-stat__title {
    font-size: var(--text-sm);
    font-weight: 600;
}

.wall-stat__note {
    font-size: var(--text-xs);
    color: var(--neutral-500);
}

.wall-stat--mint .wall-stat__icon {
    background: rgba(16, 185, 129, 0.12);
    color: #0f766e;
}

.wall-stat--lavender .wall-stat__icon {
    background: rgba(139, 92, 246, 0.12);
    color: #6d28d9;
}

.wall-stat--sunset .wall-stat__icon {
    background: rgba(249, 115, 22, 0.12);
    color: #c2410c;
}

.wall-overview__grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: var(--space-4);
    align-items: stretch;
}

.wall-spotlight {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-5);
    background: linear-gradient(135deg, rgba(8, 48, 76, 0.04), rgba(8, 48, 76, 0.02));
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.wall-spotlight__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-2);
}

.wall-spotlight__badge {
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-full);
    background: var(--accent-100);
    color: var(--color-primary);
}

.wall-spotlight__stage {
    font-size: var(--text-xs);
    color: var(--neutral-500);
}

.wall-spotlight h3 {
    font-size: var(--text-2xl);
}

.wall-spotlight h3 a {
    color: inherit;
    text-decoration: none;
}

.wall-spotlight h3 a:hover {
    text-decoration: underline;
}

.wall-spotlight__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    font-size: var(--text-xs);
    color: var(--neutral-600);
}

.wall-spotlight__meta span::after {
    content: "•";
    margin-left: var(--space-1);
}

.wall-spotlight__meta span:last-child::after {
    content: "";
}

.wall-spotlight__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    list-style: none;
    padding: 0;
}

.wall-spotlight__tags li {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-full);
    padding: 0.25rem 0.75rem;
    font-size: var(--text-xs);
    background: var(--surface-chip);
}

.wall-spotlight__actions {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.wall-spotlight__cta {
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border-light);
    padding: 0.5rem 1.2rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--color-text-primary);
    background: var(--surface-card);
    transition: all var(--transition-fast);
}

.wall-spotlight__cta:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.wall-spotlight__cta.is-ghost {
    background: transparent;
}

.wall-recent {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-4);
    background: var(--surface-card);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.wall-recent__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
}

.wall-recent__eyebrow {
    font-size: var(--text-xs);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--neutral-500);
}

.wall-recent__link {
    font-size: var(--text-sm);
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
}

.wall-recent__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.wall-recent__item {
    display: flex;
    gap: var(--space-3);
    justify-content: space-between;
    padding: var(--space-3);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
    background: var(--surface-card-alt);
}

.wall-recent__body h4 {
    font-size: var(--text-base);
    margin-bottom: var(--space-1);
}

.wall-recent__body h4 a {
    color: inherit;
    text-decoration: none;
}

.wall-recent__body h4 a:hover {
    text-decoration: underline;
}

.wall-recent__body p {
    font-size: var(--text-sm);
    color: var(--neutral-600);
}

.wall-recent__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    font-size: var(--text-xs);
    color: var(--neutral-500);
    margin-top: var(--space-1);
}

.wall-recent__stats {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    color: var(--neutral-600);
    font-weight: 600;
    white-space: nowrap;
}

.wall-recent__stats .material-icons {
    font-size: 18px;
}

.wall-overview__hint {
    font-size: var(--text-sm);
    color: var(--neutral-600);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-xl);
    background: var(--accent-50);
    border: 1px dashed var(--color-border-light);
}

.wall-board__grid {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(260px, 1fr);
    gap: var(--space-6);
}

.wall-board__column {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    min-width: 0;
}

.wall-group {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-6);
    background: var(--color-bg-primary);
    min-width: 0;
}

.wall-group__header {
    display: flex;
    justify-content: space-between;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-bottom: var(--space-4);
}

.wall-group__header h2 {
    font-size: var(--text-2xl);
}

.wall-group__eyebrow {
    font-size: var(--text-xs);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--neutral-500);
    margin-bottom: var(--space-1);
}

.wall-group__more {
    border-radius: var(--radius-full);
    border: 1px dashed var(--color-border-light);
    padding: 0.45rem 1.25rem;
    background: transparent;
    font-weight: 600;
    color: var(--neutral-500);
}

.wall-group__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.wall-item {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-4);
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: var(--space-4);
    align-items: center;
    background: var(--color-bg-secondary);
    min-width: 0;
}

.wall-item__rank {
    font-weight: 700;
    font-size: var(--text-xl);
    color: var(--neutral-500);
}

.wall-item__body {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: var(--space-3);
    align-items: start;
    min-width: 0;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.wall-item__body p {
    overflow-wrap: anywhere;
    word-break: break-word;
}

.wall-item__avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-xl);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.wall-item__avatar--sunset {
    background: #ffe4d4;
}

.wall-item__avatar--peach {
    background: #ffeeda;
}

.wall-item__avatar--lavender {
    background: #f1ecff;
}

.wall-item__avatar--indigo {
    background: #e3e4ff;
}

.wall-item__avatar--mint {
    background: #e3fff3;
}

.wall-item__avatar--saffron {
    background: #fff3cd;
}

.wall-item__title-row {
    display: flex;
    justify-content: space-between;
    gap: var(--space-2);
    align-items: baseline;
    min-width: 0;
}

.wall-item__title-row h3 a {
    color: var(--color-text-primary);
    text-decoration: none;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.wall-item__title-row h3 a:hover {
    text-decoration: underline;
}

.wall-item__price {
    font-size: var(--text-sm);
    color: var(--neutral-500);
}

.wall-item__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    font-size: var(--text-xs);
    color: var(--neutral-600);
    margin-top: var(--space-1);
    overflow-wrap: anywhere;
    word-break: break-word;
}

.wall-item__meta span::after {
    content: "•";
    margin-left: var(--space-1);
}

.wall-item__meta span:last-child::after {
    content: "";
}

.wall-item__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-2);
    list-style: none;
    padding: 0;
}

.wall-item__tags li {
    background: var(--color-bg-primary);
    border-radius: var(--radius-full);
    padding: 0.25rem 0.75rem;
    font-size: var(--text-xs);
    border: 1px solid var(--color-border-light);
}

.wall-item__actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    align-items: center;
}

.wall-item__stats {
    display: flex;
    gap: var(--space-2);
}

.wall-item__stat {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    border: 1px solid var(--color-border-light);
    background: var(--color-bg-primary);
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0;
    font-weight: var(--weight-semibold);
    font-size: var(--text-sm);
    color: var(--neutral-700);
    line-height: var(--leading-ui);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.08);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
    appearance: none;
}

.wall-item__stat:hover {
    border-color: var(--neutral-300);
    box-shadow: 0 4px 10px rgba(15, 23, 42, 0.12);
    transform: translateY(-1px);
}

.wall-item__stat:focus-visible {
    outline: 2px solid rgba(255, 90, 0, 0.25);
    outline-offset: 3px;
}

.wall-item__stat-icon {
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.wall-item__stat-icon svg {
    width: 20px;
    height: 20px;
    stroke: var(--neutral-500);
    stroke-width: 1.6;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.wall-item__stat-value {
    font-size: var(--text-sm);
    color: var(--neutral-700);
}

.wall-item__vote {
    border-radius: var(--radius-full);
    background: #fff;
    border: 1px solid var(--color-border-light);
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    gap: var(--space-1);
    cursor: pointer;
    font-weight: 600;
    text-decoration: none;
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.wall-item__vote:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.wall-sidebar__card {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-5);
    background: var(--color-bg-primary);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.wall-sidebar__card h3 {
    font-size: var(--text-lg);
}

/* Archive Styles */
.wall-archive {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.wall-archive__year {
    display: flex;
    flex-direction: column;
}

.wall-archive__year-link {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text-primary);
    text-decoration: none;
    padding: var(--space-2) 0;
    transition: color var(--transition-fast);
}

.wall-archive__year-link:hover,
.wall-archive__year-link.is-active {
    color: var(--color-primary);
}

.wall-archive__months {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-2) var(--space-3);
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--color-border-light);
}

.wall-archive__months li {
    padding-left: var(--space-3);
}

.wall-archive__month {
    display: block;
    font-size: var(--text-sm);
    color: var(--neutral-600);
    text-decoration: none;
    padding: var(--space-1) 0;
    transition: color var(--transition-fast);
}

.wall-archive__month:hover,
.wall-archive__month.is-active {
    color: var(--color-primary);
}

.wall-archive__month.is-active {
    font-weight: 500;
}

.wall-sidebar__thread-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.wall-thread {
    display: flex;
    gap: var(--space-3);
    align-items: center;
    padding: var(--space-3);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
}

.wall-thread--warm {
    background: #fff3e8;
}

.wall-thread--mint {
    background: #f1fff8;
}

.wall-thread--lavender {
    background: #f6f2ff;
}

.wall-thread--sunset {
    background: #fff6ee;
}

.wall-sidebar__quick-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.wall-quick-link {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
    background: var(--color-bg-secondary);
    text-align: left;
    text-decoration: none;
    color: inherit;
    transition: border-color var(--transition-fast);
}

.wall-quick-link:hover {
    border-color: var(--neutral-300);
}

.wall-quick-link .material-icons {
    color: var(--color-primary);
}

.wall-empty {
    border: 1px dashed var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-5);
    display: flex;
    gap: var(--space-3);
    align-items: center;
    background: var(--color-bg-secondary);
    color: var(--neutral-600);
}

.wall-empty .material-icons {
    color: var(--color-primary);
    font-size: var(--type-title);
}

.wall-item__comments {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    color: var(--neutral-600);
    text-decoration: none;
}

.wall-item__comments:hover {
    color: var(--color-primary);
}

@media (max-width: 960px) {
    .wall-board__grid {
        grid-template-columns: 1fr;
    }

    .wall-overview__grid {
        grid-template-columns: 1fr;
    }

    .wall-recent__item {
        flex-direction: column;
        align-items: flex-start;
    }

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

    .wall-item__actions {
        flex-direction: row;
        justify-content: space-between;
        flex-wrap: wrap;
    }

    .wall-board__tabs {
        overflow-x: auto;
        padding-bottom: var(--space-2);
    }
}

@media (max-width: 600px) {
    .wall-board {
        padding: var(--space-6) var(--space-3) var(--space-10);
        padding-top: calc(var(--space-6) + var(--header-clearance) + var(--space-3) + 1rem - var(--header-shell-lift-offset));
    }

    .wall-board__hero {
        padding: var(--space-6);
    }

    .wall-board__hero h1 {
        font-size: var(--text-2xl);
    }

    .wall-item__body {
        grid-template-columns: minmax(0, 1fr);
    }

    .wall-item__avatar {
        width: 40px;
        height: 40px;
    }

    .wall-board__tabs {
        flex-wrap: wrap;
    }

    .wall-board__tab {
        padding: var(--space-1) var(--space-3);
        font-size: var(--text-xs);
    }

    .wall-overview__stats {
        grid-template-columns: 1fr;
    }

    .wall-spotlight {
        padding: var(--space-4);
    }

    .wall-recent__stats {
        width: 100%;
        justify-content: flex-start;
    }

    .wall-pagination {
        width: 100%;
        padding: var(--space-4);
    }

    .wall-pagination__controls,
    .wall-pagination__pages {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* Dark Theme */
body.dark-theme .wall-board__hero {
    background: linear-gradient(135deg, rgba(19, 19, 20, 0.9), rgba(30, 31, 32, 0.95));
}

body.dark-theme .wall-board__tab.is-active {
    background: rgba(255, 90, 0, 0.15);
}

body.dark-theme .wall-thread--warm {
    background: rgba(255, 243, 232, 0.1);
}

body.dark-theme .wall-thread--mint {
    background: rgba(241, 255, 248, 0.1);
}

body.dark-theme .wall-thread--lavender {
    background: rgba(246, 242, 255, 0.1);
}

body.dark-theme .wall-thread--sunset {
    background: rgba(255, 246, 238, 0.1);
}

body.dark-theme .wall-item__avatar--sunset {
    background: rgba(255, 228, 212, 0.2);
}

body.dark-theme .wall-item__avatar--peach {
    background: rgba(255, 238, 218, 0.2);
}

body.dark-theme .wall-item__avatar--lavender {
    background: rgba(241, 236, 255, 0.2);
}

body.dark-theme .wall-item__avatar--indigo {
    background: rgba(227, 228, 255, 0.2);
}

body.dark-theme .wall-item__avatar--mint {
    background: rgba(227, 255, 243, 0.2);
}

body.dark-theme .wall-item__avatar--saffron {
    background: rgba(255, 243, 205, 0.2);
}

/* Pagination */
.wall-pagination {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    margin-top: var(--space-6);
    padding: var(--space-5);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    background: var(--color-bg-primary);
}

.wall-pagination__info {
    font-size: var(--text-sm);
    color: var(--neutral-600);
}

.wall-pagination__controls {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.wall-pagination__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
    background: var(--color-bg-secondary);
    color: var(--neutral-600);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.wall-pagination__btn:hover:not(.is-disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(255, 90, 0, 0.04);
}

.wall-pagination__btn.is-disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.wall-pagination__btn .material-icons {
    font-size: 20px;
}

.wall-pagination__pages {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    margin: 0 var(--space-2);
}

.wall-pagination__page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-2);
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--neutral-600);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.wall-pagination__page:hover:not(.is-active) {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-light);
}

.wall-pagination__page.is-active {
    background: var(--color-primary);
    color: var(--color-on-primary);
    border-color: var(--color-primary);
}

@media (max-width: 600px) {
    .wall-pagination {
        padding: var(--space-4);
    }

    .wall-pagination__btn {
        width: 36px;
        height: 36px;
    }

    .wall-pagination__page {
        min-width: 36px;
        height: 36px;
    }

    .wall-pagination__info {
        font-size: var(--text-xs);
        text-align: center;
    }
}

/* Dark Theme - Pagination */
body.dark-theme .wall-pagination {
    background: var(--color-bg-primary);
    border-color: var(--color-border-light);
}

body.dark-theme .wall-pagination__btn {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-light);
}

body.dark-theme .wall-pagination__btn:hover:not(.is-disabled) {
    background: rgba(255, 90, 0, 0.1);
}

/* ===========================
   Design System Alignment
   =========================== */
.wall-board__hero {
    background: var(--surface-card);
}

.wall-board__tab.is-active {
    background: var(--accent-50);
    border-color: var(--accent-100);
    color: var(--color-primary);
}

.wall-board__hero-note {
    background: var(--surface-card);
    border-color: var(--color-border-light);
}

.wall-item {
    background: var(--color-bg-primary);
}

/* ===========================
   Wall Timeline (Twitter-like)
   =========================== */
.wall-timeline {
    width: min(var(--header-shell-visual-width), 100%);
    margin: 0 auto;
    padding: var(--space-10) var(--space-4) var(--space-16);
    padding-top: calc(var(--space-10) + var(--header-clearance) + var(--space-3) + 1rem - var(--header-shell-lift-offset));
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.wall-timeline__hero {
    display: flex;
    justify-content: space-between;
    gap: var(--space-6);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-3xl);
    padding: var(--space-6) var(--space-8);
    background: linear-gradient(135deg, rgba(8, 48, 76, 0.05), rgba(8, 48, 76, 0.02));
}

.wall-timeline__eyebrow {
    font-size: var(--text-xs);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--neutral-500);
}

.wall-timeline__hero h1 {
    font-size: var(--text-4xl);
    letter-spacing: var(--letter-spacing-heading);
}

.wall-timeline__hero-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    align-items: flex-end;
    text-align: right;
}

.wall-timeline__hero-cta {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    justify-content: flex-end;
}

.wall-timeline__cta {
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border-light);
    padding: 0.65rem 1.4rem;
    font-weight: 600;
    text-decoration: none;
    background: var(--color-primary);
    color: var(--color-on-primary);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.wall-timeline__cta.is-ghost {
    background: transparent;
    color: var(--color-text-primary);
}

.wall-timeline__layout {
    display: grid;
    grid-template-columns: minmax(200px, 0.9fr) minmax(0, 2.2fr) minmax(260px, 1fr);
    gap: var(--space-6);
    align-items: start;
}

.wall-rail,
.wall-side {
    position: sticky;
    top: calc(var(--header-clearance) + var(--space-2));
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.wall-rail__card {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-4);
    background: var(--surface-card);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.wall-rail__label {
    font-size: var(--text-xs);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--neutral-500);
}

.wall-rail__nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.wall-rail__link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    font-weight: 600;
    color: var(--color-text-primary);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast), color var(--transition-fast);
}

.wall-rail__link.is-active,
.wall-rail__link:hover {
    background: var(--accent-50);
    color: var(--color-primary);
}

.wall-rail__cta {
    margin-top: var(--space-2);
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-on-primary);
    text-decoration: none;
    font-weight: 600;
    padding: 0.75rem 1.2rem;
    text-align: center;
}

.wall-rail__filters {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.wall-rail__filter {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-full);
    padding: 0.45rem 1rem;
    text-decoration: none;
    color: var(--neutral-600);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.wall-rail__filter.is-active,
.wall-rail__filter:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--accent-50);
}

.wall-feed {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.wall-feed__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-3);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-4) var(--space-5);
    background: var(--surface-card);
}

.wall-feed__header h2 {
    font-size: var(--text-2xl);
}

.wall-feed__header p {
    font-size: var(--text-sm);
    color: var(--neutral-500);
}

.wall-feed__tabs {
    display: flex;
    gap: var(--space-2);
}

.wall-feed__tab {
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    background: transparent;
    padding: 0.5rem 1.2rem;
    font-weight: 600;
    color: var(--neutral-600);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.wall-feed__tab.is-active,
.wall-feed__tab:hover {
    background: var(--accent-50);
    border-color: var(--accent-100);
    color: var(--color-primary);
}

.wall-composer {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: var(--space-3);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-4);
    background: var(--surface-card);
}

.wall-composer__avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-xl);
    background: var(--accent-50);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.wall-composer__prompt {
    font-size: var(--text-base);
    color: var(--neutral-600);
}

.wall-composer__actions {
    margin-top: var(--space-2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.wall-composer__tools {
    display: flex;
    gap: var(--space-2);
    color: var(--neutral-500);
}

.wall-composer__cta {
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-on-primary);
    text-decoration: none;
    font-weight: 600;
    padding: 0.55rem 1.3rem;
}

.wall-feed__group {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.wall-feed__group-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    padding: 0 var(--space-2);
}

.wall-feed__eyebrow {
    font-size: var(--text-xs);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--neutral-500);
}

.wall-feed__count {
    font-size: var(--text-xs);
    color: var(--neutral-500);
    font-weight: 600;
}

.wall-post {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-4);
    background: var(--surface-card);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.wall-post__row {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: var(--space-3);
}

.wall-post__avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-xl);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.wall-post__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
}

.wall-post__header h3 {
    font-size: var(--text-lg);
}

.wall-post__header h3 a {
    text-decoration: none;
    color: inherit;
}

.wall-post__header h3 a:hover {
    text-decoration: underline;
}

.wall-post__badge {
    font-size: var(--text-xs);
    padding: 0.2rem 0.7rem;
    border-radius: var(--radius-full);
    background: var(--accent-50);
    color: var(--color-primary);
    font-weight: 600;
}

.wall-post__text {
    font-size: var(--text-sm);
    color: var(--neutral-600);
}

.wall-post__media {
    margin-top: var(--space-2);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
    background: var(--surface-card-alt);
    max-height: 220px;
}

.wall-post__media img {
    width: 100%;
    height: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
}

.wall-post__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    font-size: var(--text-xs);
    color: var(--neutral-500);
}

.wall-post__meta span::after {
    content: "•";
    margin-left: var(--space-1);
}

.wall-post__meta span:last-child::after {
    content: "";
}

.wall-post__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    list-style: none;
    padding: 0;
}

.wall-post__tags li {
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border-light);
    padding: 0.2rem 0.7rem;
    font-size: var(--text-xs);
    background: var(--surface-chip);
}

.wall-post__actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.wall-post__reactions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.wall-reaction {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border-light);
    background: var(--surface-card);
    color: var(--neutral-600);
    font-size: var(--text-xs);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.wall-reaction .material-icons {
    font-size: 16px;
}

.wall-reaction__count {
    font-size: var(--text-xs);
    color: var(--neutral-500);
}

.wall-reaction:hover:not(:disabled) {
    border-color: var(--accent-100);
    color: var(--color-primary);
    background: var(--accent-50);
}

.wall-reaction.is-active {
    border-color: var(--accent-100);
    color: var(--color-primary);
    background: var(--accent-50);
}

.wall-reaction.is-active .wall-reaction__count {
    color: var(--color-primary);
}

.wall-reaction:focus-visible {
    outline: 2px solid rgba(255, 90, 0, 0.25);
    outline-offset: 3px;
}

.wall-reaction:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.wall-post__metric {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--neutral-600);
}

.wall-post__metric .material-icons {
    font-size: 16px;
}

.wall-post__action {
    text-decoration: none;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-primary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--accent-100);
    background: var(--accent-50);
}

.wall-post__action.is-ghost {
    background: transparent;
    color: var(--neutral-600);
    border-color: var(--color-border-light);
}

.wall-post__pin {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--neutral-500);
}

.wall-post--pinned {
    border-color: rgba(8, 48, 76, 0.2);
    background: linear-gradient(135deg, rgba(8, 48, 76, 0.06), rgba(8, 48, 76, 0.02));
}

.wall-side {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.wall-sidecard {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-4);
    background: var(--surface-card);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.wall-sidecard h3 {
    font-size: var(--text-lg);
}

.wall-sidecard__stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.wall-sidecard .wall-stat {
    padding: var(--space-3);
    border-radius: var(--radius-xl);
}

.wall-sidecard__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.wall-sidecard__item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    text-decoration: none;
    color: inherit;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
    background: var(--surface-card-alt);
}

.wall-sidecard__item p {
    font-size: var(--text-xs);
    color: var(--neutral-500);
}

@media (max-width: 1200px) {
    .wall-timeline__layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .wall-rail,
    .wall-side {
        position: static;
    }

    .wall-rail__nav {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .wall-rail__filters {
        flex-direction: row;
        flex-wrap: wrap;
    }
}

@media (max-width: 720px) {
    .wall-timeline {
        padding: var(--space-6) var(--space-3) var(--space-10);
        padding-top: calc(var(--space-6) + var(--header-clearance) + var(--space-3) + 1rem - var(--header-shell-lift-offset));
    }

    .wall-timeline__hero {
        flex-direction: column;
        align-items: flex-start;
    }

    .wall-timeline__hero-meta {
        align-items: flex-start;
        text-align: left;
    }

    .wall-composer {
        grid-template-columns: 1fr;
    }

    .wall-post__row {
        grid-template-columns: 1fr;
    }
}