/* Navigation, conversation, forms and dialogs. */
button { color: inherit; }
.icon-button { display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; width: 44px; height: 44px; padding: 10px; border: 0; border-radius: 8px; background: transparent; color: var(--color-text-secondary); }
.icon-button:hover { background: var(--color-bg-surface-subtle); }
.mobile-menu-toggle.icon-button { display: none; }
.text-button { display: inline-flex; align-items: center; justify-content: flex-start; gap: 8px; min-height: 44px; padding: 8px 0; border: 0; border-radius: 4px; background: transparent; color: var(--color-brand-primary); font-size: 12px; font-weight: 550; line-height: 1.5; text-align: left; text-decoration: none; }
.text-button:hover { text-decoration: underline; text-underline-offset: 3px; }
.text-button .icon { width: 16px; height: 16px; }
.btn-primary, .btn-secondary, .btn-post, .post-button, .btn-guide-header, .btn-lang-toggle, .nickname-pill, .action-btn, .btn-ask-community, .btn-guide-modal-open, .load-history-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 10px 16px; border: 1px solid transparent; border-radius: 8px; font-size: 13px; font-weight: 600; line-height: 1.35; text-align: center; text-decoration: none; transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast); }
.btn-primary, .btn-post, .post-button { color: #fff; background: var(--color-brand-primary); border-color: var(--color-brand-primary); }
.btn-primary:hover, .btn-post:hover, .post-button:hover { background: var(--color-brand-primary-hover); border-color: var(--color-brand-primary-hover); }
.btn-primary .icon, .btn-post .icon, .post-button .icon { filter: brightness(0) invert(1); }
.btn-secondary, .btn-guide-modal-open, .load-history-btn { color: var(--color-text-secondary); background: var(--color-bg-surface); border-color: var(--color-border-subtle); }
.btn-secondary:hover, .btn-guide-modal-open:hover, .load-history-btn:hover { background: var(--color-bg-surface-subtle); border-color: var(--color-border-strong); }
button:disabled, input:disabled, select:disabled, textarea:disabled { opacity: .55; }
.btn-lang-toggle, .btn-guide-header { color: var(--color-text-secondary); background: transparent; }
.btn-lang-toggle { min-width: 44px; padding: 10px; font-weight: 500; }
.btn-lang-toggle:hover, .btn-guide-header:hover { background: var(--color-bg-surface-subtle); }
.lang-flag { display: none; }
.nickname-pill { gap: 8px; max-width: 240px; padding: 5px 10px 5px 5px; color: var(--color-text-primary); background: transparent; border-color: var(--color-border-subtle); font-weight: 500; }
.nickname-pill:hover { background: var(--color-bg-surface-subtle); border-color: var(--color-border-strong); }
.nickname-display { max-width: 150px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.edit-badge-icon, .nickname-edit-icon { width: 14px; height: 14px; opacity: .6; }
.mobile-menu-toggle, .mobile-menu-btn, .drawer-close-btn, .modal-close-btn { align-items: center; justify-content: center; flex-shrink: 0; width: 44px; height: 44px; padding: 10px; border: 0; border-radius: 8px; background: transparent; color: var(--color-text-secondary); }
.drawer-close-btn, .modal-close-btn { display: inline-flex; font-size: 24px; font-weight: 400; line-height: 1; }
.mobile-menu-toggle:hover, .mobile-menu-btn:hover, .drawer-close-btn:hover, .modal-close-btn:hover { background: var(--color-bg-surface-subtle); }
.sidebar-section { min-width: 0; }
.sidebar-section > .sidebar-heading { margin-bottom: 12px; }
.sidebar-heading-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
.sidebar-heading, .sidebar-subheading { color: var(--color-text-muted); font-size: 11px; font-weight: 600; letter-spacing: .09em; line-height: 1.5; text-transform: uppercase; }
.sidebar-subheading { margin-bottom: 12px; }
.category-nav-list { display: grid; gap: 4px; list-style: none; padding: 0; margin: 0; }
.category-link { display: flex; align-items: center; gap: 10px; min-height: 64px; padding: 12px; border-radius: 8px; color: var(--color-text-secondary); text-decoration: none; transition: background-color var(--transition-fast); }
.category-link:hover { background: var(--color-bg-surface-hover); }
.category-link.active { background: var(--color-brand-primary-light); color: var(--color-brand-primary-text); }
.cat-icon { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 22px; width: 22px; height: 24px; opacity: .8; }
.cat-label-wrap, .cat-labels { display: flex; min-width: 0; flex: 1; flex-direction: column; gap: 2px; }
.cat-name { font-size: 14px; font-weight: 550; }
.cat-sub, .cat-subname { color: var(--color-text-muted); font-size: 11px; line-height: 1.4; }
.badge-count { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; min-width: 22px; height: 22px; padding: 0 6px; border-radius: 6px; background: var(--color-bg-surface); color: var(--color-text-muted); font-size: 11px; font-variant-numeric: tabular-nums; font-weight: 500; }
.category-link.active .badge-count { color: var(--color-brand-primary); }
.category-link.active .icon, .mobile-cat-pill.active .icon, .drawer-channel-link.active .icon, .sidebar-resource-icon .icon, .empty-state-icon .icon, .text-button .icon { filter: invert(34%) sepia(16%) saturate(1265%) hue-rotate(106deg) brightness(90%) contrast(86%); }
.sidebar-city-control { display: grid; gap: 8px; padding-top: 24px; border-top: 1px solid var(--color-border-subtle); }
.sidebar-note, .community-note { color: var(--color-text-muted); font-size: 12px; line-height: 1.65; }
.sidebar-note { padding: 16px; border-radius: 8px; background: #edf1eb; }
.sidebar-note strong, .community-note strong { display: block; margin-bottom: 4px; color: var(--color-text-secondary); font-weight: 600; }
.sidebar-note .icon, .community-note .icon { margin-bottom: 8px; }
.sidebar-footer { padding-top: 20px; border-top: 1px solid var(--color-border-subtle); }
.system-health-indicator { display: flex; align-items: center; gap: 7px; color: var(--color-text-muted); font-size: 11px; }
.health-dot, .pulse-dot { flex: 0 0 auto; width: 6px; height: 6px; border-radius: 50%; background: var(--color-text-muted); }
.health-dot.online { background: var(--color-success); }
.health-dot.error, .health-dot.offline { background: var(--color-danger); }
.community-copyright { margin-top: 8px; color: var(--color-text-muted); font-size: 11px; }
.live-pulse-badge { display: inline-flex; align-items: center; gap: 6px; color: var(--color-text-muted); font-size: 11px; }
.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-chip, .mobile-cat-pill, .city-chip-pill { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 10px 14px; border: 1px solid var(--color-border-subtle); border-radius: 8px; background: var(--color-bg-surface); color: var(--color-text-secondary); font-size: 13px; font-weight: 500; line-height: 1.35; text-decoration: none; white-space: nowrap; }
.filter-chip:hover, .mobile-cat-pill:hover, .city-chip-pill:hover { background: var(--color-bg-surface-subtle); }
.filter-chip.active, .mobile-cat-pill.active, .city-chip-pill.active { border-color: #c6d9ca; background: var(--color-brand-primary-light); color: var(--color-brand-primary-text); }
.mobile-cat-pill { flex: 0 0 auto; }
.mobile-cat-icon { display: flex; }
.mobile-cat-pill .icon { width: 18px; height: 18px; }
.mobile-cat-pill .badge-count { background: transparent; padding: 0; min-width: auto; }
.form-group, .toolbar-group { display: grid; min-width: 0; gap: 7px; }
.form-label, .row-label, .sidebar-city-control > label { display: block; color: var(--color-text-secondary); font-size: 12px; font-weight: 550; }
.label-req { color: var(--color-text-muted); font-size: 11px; font-weight: 400; }
.form-input, .text-input, .composer-select, .feed-city-select, .city-filter-select, .feed-search-input { width: 100%; min-width: 0; height: 44px; padding: 10px 12px; border: 1px solid var(--color-border-subtle); border-radius: 8px; background: var(--color-bg-surface); color: var(--color-text-primary); font-size: 13px; line-height: 1.5; }
select { padding-right: 28px; }
input::placeholder, textarea::placeholder { color: var(--color-text-muted); opacity: 1; }
input:hover, select:hover, textarea:hover { border-color: var(--color-border-strong); }
input:focus, select:focus, textarea:focus { border-color: var(--color-brand-primary); }
input[aria-invalid='true'], textarea[aria-invalid='true'] { border-color: var(--color-danger); }
.feed-search-wrap { position: relative; min-width: 0; }
.feed-search-wrap > .icon { position: absolute; top: 12px; left: 12px; width: 18px; height: 18px; pointer-events: none; opacity: .65; }
.feed-search-wrap:has(> .icon) .feed-search-input { padding-left: 40px; }
.feed-search-input { padding-right: 42px; }
.feed-search-input::-webkit-search-cancel-button { display: none; }
.feed-search-clear { position: absolute; top: 2px; right: 2px; display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; padding: 8px; border: 0; border-radius: 6px; background: transparent; color: var(--color-text-muted); font-size: 20px; }
.feed-search-clear.active { display: inline-flex; align-items: center; justify-content: center; }
.feed-search-clear:hover { background: var(--color-bg-surface-subtle); }
.feed-quickbar { display: flex; align-items: stretch; gap: 12px; }
.filter-select-wrap { position: relative; flex: 0 0 180px; min-width: 0; }
.filter-select-wrap > .icon { position: absolute; top: 13px; left: 12px; width: 18px; height: 18px; pointer-events: none; opacity: .65; }
.filter-select-wrap .city-filter-select { padding-left: 38px; }
.connection-banner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px 16px; padding: 12px 16px; border: 1px solid #e3cba2; border-radius: 8px; background: var(--color-warning-bg); color: var(--color-warning-text); font-size: 13px; line-height: 1.6; }
.connection-banner .text-button { color: inherit; }
.feed-header-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.channel-info-badge { display: flex; align-items: center; gap: 8px; }
.channel-info-count, .feed-badge-pill { color: var(--color-text-muted); font-size: 12px; font-weight: 400; }
.feed-city-chips { display: flex; gap: 8px; overflow-x: auto; }
.message-list { display: grid; gap: 16px; }
.message-card { min-width: 0; padding: 24px; border: 1px solid var(--color-border-subtle); border-radius: 12px; background: var(--color-bg-surface); }
.message-card.pending-flight { opacity: .7; }
.message-card.is-failed { border-color: #e6bdb7; }
.message-card.is-pinned { border-left: 3px solid var(--color-brand-primary); }
.message-card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.author-info, .message-author-wrap { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; min-width: 0; }
.author-name, .message-nickname { color: var(--color-text-primary); font-size: 13px; font-weight: 600; overflow-wrap: anywhere; }
.avatar-circle { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; width: 36px; height: 36px; border-radius: 9px; background: var(--color-brand-primary-light); color: var(--color-brand-primary-text); font-size: 11px; font-weight: 600; letter-spacing: .02em; }
.avatar-sm { width: 32px; height: 32px; font-size: 10px; border-radius: 8px; }
.avatar-md { width: 40px; height: 40px; }
.avatar-lg, .avatar-circle-large { width: 56px; height: 56px; border-radius: 12px; font-size: 17px; }
.message-time, .message-timestamp { flex-shrink: 0; margin-top: 7px; color: var(--color-text-muted); font-size: 11px; line-height: 1.5; }
.message-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; margin-top: 6px; color: var(--color-text-muted); font-size: 12px; }
.message-location, .message-tag { display: inline-flex; align-items: center; gap: 4px; color: var(--color-text-muted); font-size: 12px; }
.message-location .icon, .message-tag .icon { width: 13px; height: 13px; opacity: .65; }
.message-location { min-height: 28px; padding: 0; border: 0; background: transparent; text-align: left; }
.message-location:hover { color: var(--color-brand-primary); text-decoration: underline; text-underline-offset: 3px; }
.you-tag { color: var(--color-brand-primary); font-size: 10px; font-weight: 500; }
.city-pill-btn, .city-pill, .tag-badge { display: inline-flex; align-items: center; gap: 4px; padding: 3px 7px; border: 0; border-radius: 5px; background: var(--color-bg-surface-subtle); color: var(--color-text-muted); font-size: 11px; line-height: 1.5; }
.message-card-body, .message-body { margin-top: 16px; color: var(--color-text-secondary); font-size: 14px; line-height: 1.75; overflow-wrap: anywhere; white-space: normal; }
.chat-link { color: var(--color-brand-primary); text-decoration: underline; text-underline-offset: 3px; overflow-wrap: anywhere; }
.message-card-footer { display: flex; align-items: center; flex-wrap: wrap; gap: 4px 12px; margin-top: 16px; padding-top: 12px; border-top: 1px solid #edf0ec; }
.action-btn { min-height: 36px; padding: 6px 4px; background: transparent; border: 0; color: var(--color-text-muted); font-size: 12px; font-weight: 400; }
.action-btn .icon { width: 15px; height: 15px; opacity: .7; }
.action-btn:hover { color: var(--color-brand-primary); background: var(--color-bg-surface-subtle); }
.message-send-error, .composer-error, .form-error, .error-message { color: var(--color-danger-text); font-size: 12px; line-height: 1.6; }
.message-send-error { display: flex; align-items: flex-start; gap: 6px; margin-top: 12px; }
.message-send-error .icon { width: 16px; height: 16px; margin-top: 2px; flex-shrink: 0; }
.message-state { margin-top: 12px; color: var(--color-text-muted); font-size: 12px; }
.feed-error, .error-state { padding: 20px 24px; border: 1px solid #e6bdb7; border-radius: 12px; background: var(--color-danger-bg); color: var(--color-danger-text); }
.empty-state, .feed-empty-state, .empty-state-card { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; min-height: 260px; padding: 32px 24px; border: 1px solid var(--color-border-subtle); border-radius: 12px; background: var(--color-bg-surface); text-align: center; }
.empty-state-icon, .empty-icon { display: grid; place-items: center; width: 44px; height: 44px; margin-bottom: 4px; border-radius: 10px; background: var(--color-brand-primary-light); color: var(--color-brand-primary); }
.empty-state-icon .icon { width: 23px; height: 23px; opacity: .8; }
.empty-state-title { color: var(--color-text-primary); font-size: 20px; font-weight: 600; letter-spacing: -.3px; line-height: 1.35; }
.empty-state-text { max-width: 340px; color: var(--color-text-muted); font-size: 13px; line-height: 1.65; }
.empty-state-cta { margin-top: 4px; }
.history-controls, .feed-history-controls { display: flex; justify-content: center; margin-bottom: 16px; }
.load-history-btn { width: 100%; margin-bottom: 16px; }
.unread-pill-float { display: block; width: fit-content; margin: 0 auto 16px; padding: 10px 16px; min-height: 44px; border: 1px solid #c6d9ca; border-radius: 8px; background: var(--color-brand-primary-light); color: var(--color-brand-primary-text); font-size: 13px; }
.skeleton-card { min-height: 144px; padding: 24px; border: 1px solid var(--color-border-subtle); border-radius: 12px; background: var(--color-bg-surface); }
.skeleton-line { height: 10px; margin-bottom: 16px; border-radius: 4px; background: #edf0ec; }
.skeleton-line.short { width: 24%; }
.skeleton-line.medium { width: 58%; }
.skeleton-line.long { width: 86%; }
.composer-dock-container { position: static; min-width: 0; }
.composer-dock { display: flex; flex-direction: column; gap: 20px; padding: 24px; border: 1px solid var(--color-border-subtle); border-radius: 12px; background: var(--color-bg-surface); }
.composer-heading { display: flex; align-items: center; gap: 8px; color: var(--color-text-primary); font-size: 15px; font-weight: 600; }
.composer-heading { justify-content: space-between; }
.composer-heading h2 { font-size: 15px; font-weight: 600; line-height: 1.4; }
.composer-heading .char-counter { color: var(--color-text-muted); font-size: 11px; font-weight: 400; }
.composer-heading .icon { width: 18px; height: 18px; opacity: .75; }
.composer-toolbar { display: grid; grid-template-columns: minmax(0, 1.2fr) repeat(2, minmax(0, 1fr)); align-items: end; gap: 12px; }
.composer-nickname-badge { display: flex; align-items: center; gap: 8px; min-width: 0; min-height: 44px; padding: 5px 10px; border: 1px solid var(--color-border-subtle); border-radius: 8px; }
.composer-nickname-badge:focus-within { outline: 2px solid var(--color-focus-ring); outline-offset: 3px; }
.composer-avatar-dot { width: 24px; height: 24px; border-radius: 6px; font-size: 9px; }
.composer-nickname-field { width: 100%; min-width: 0; padding: 4px 0; border: 0; background: transparent; color: var(--color-text-primary); font-size: 13px; }
.composer-nickname-field:focus-visible { outline: 0; }
.composer-input-row { display: grid; gap: 8px; }
.composer-textarea { display: block; width: 100%; min-height: 112px; max-height: 320px; resize: vertical; padding: 14px; border: 1px solid var(--color-border-subtle); border-radius: 8px; background: var(--color-bg-surface); color: var(--color-text-primary); font-size: 14px; line-height: 1.65; }
.composer-bottom, .composer-footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.composer-hints, .composer-info { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 16px; color: var(--color-text-muted); font-size: 11px; }
.char-counter { font-variant-numeric: tabular-nums; white-space: nowrap; }
.char-counter.error, .char-counter.limit-warning { color: var(--color-danger-text); }
.keyboard-guide { color: var(--color-text-muted); font-size: 11px; }
.keyboard-guide strong { font-weight: 500; }
.composer-bottom .btn-post { margin-left: auto; }
.composer-feedback, #composer-feedback { padding: 10px 12px; border-radius: 8px; color: var(--color-text-secondary); background: var(--color-bg-surface-subtle); font-size: 12px; line-height: 1.6; }
.composer-feedback:empty, #composer-feedback:empty { display: none; }
.composer-feedback.is-error, #composer-feedback.is-error { color: var(--color-danger-text); background: var(--color-danger-bg); }
.composer-feedback.is-success, #composer-feedback.is-success { color: var(--color-success-text); background: var(--color-success-bg); }
.sidebar-resource-card, .guide-card, .survival-guide-card { padding: 20px; border: 1px solid var(--color-border-subtle); border-radius: 12px; background: var(--color-bg-surface); }
.sidebar-resource-icon { display: inline-grid; place-items: center; width: 36px; height: 36px; margin-bottom: 16px; border-radius: 8px; background: var(--color-brand-primary-light); }
.sidebar-resource-card > .eyebrow { margin: 0 0 10px; color: var(--color-brand-primary); font-size: 10px; }
.sidebar-resource-card > .text-button { margin-top: 8px; }
.sidebar-resource-card > .icon { width: 24px; height: 24px; margin-bottom: 16px; opacity: .8; }
.sidebar-resource-card h2, .sidebar-resource-card h3, .guide-card-title { color: var(--color-text-primary); font-size: 15px; font-weight: 600; line-height: 1.4; letter-spacing: -.2px; }
.sidebar-resource-card p, .guide-card-intro { margin-top: 8px; color: var(--color-text-muted); font-size: 12px; line-height: 1.7; }
.resource-list { margin-top: 16px; }
.resource-link { display: flex; align-items: center; gap: 10px; width: 100%; min-height: 56px; padding: 12px 0; border: 0; border-top: 1px solid var(--color-border-subtle); background: transparent; color: var(--color-text-secondary); font-size: 12px; font-weight: 500; line-height: 1.5; text-align: left; text-decoration: none; }
.resource-link span { flex: 1; }
.resource-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.resource-link .icon { width: 15px; height: 15px; opacity: .65; }
.community-note { padding: 0 4px; }
.community-note h2 { margin: 12px 0 8px; color: var(--color-text-primary); font-size: 15px; font-weight: 600; }
.community-note p { font-size: 12px; line-height: 1.7; }
.community-note-icon .icon { width: 22px; height: 22px; margin: 0; opacity: .75; }
.community-tip { display: flex; align-items: flex-start; gap: 8px; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--color-border-subtle); }
.community-tip > .icon { width: 16px; height: 16px; margin: 2px 0 0; opacity: .65; }
.community-tip p { font-size: 11px; }
.sidebar-note > p { margin-top: 10px; font-size: 11px; }
.drawer-footer { display: grid; gap: 12px; padding-top: 24px; margin-top: 24px; border-top: 1px solid var(--color-border-subtle); }
.drawer-footer > .btn-secondary { width: 100%; justify-content: flex-start; }
.drawer-footer p { color: var(--color-text-muted); font-size: 12px; line-height: 1.65; }
.resource-external { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; margin-top: 12px; color: var(--color-brand-primary); font-size: 13px; text-underline-offset: 3px; }
.resource-external .icon { width: 16px; height: 16px; }
.guide-card-header { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.guide-card-badge { color: var(--color-text-muted); font-size: 10px; }
.guide-tips-list, .guide-list { display: grid; gap: 14px; list-style: none; padding: 0; margin: 16px 0; }
.tip-body { display: grid; gap: 4px; color: var(--color-text-muted); font-size: 12px; line-height: 1.65; }
.tip-body strong { color: var(--color-text-secondary); font-weight: 550; }
.btn-guide-modal-open { width: 100%; margin-top: 8px; }
.modal-backdrop { position: fixed; z-index: var(--z-modal-backdrop); inset: 0; background: var(--color-bg-overlay); }
.modal-container, .modal-dialog { position: fixed; z-index: var(--z-modal); inset: 0; display: flex; align-items: center; justify-content: center; padding: 24px; pointer-events: none; }
.modal-box { display: block; width: 100%; max-width: 500px; max-height: calc(100dvh - 48px); padding: 28px; border: 1px solid var(--color-border-subtle); border-radius: 12px; background: var(--color-bg-surface); box-shadow: var(--shadow-lg); overflow-y: auto; overscroll-behavior: contain; pointer-events: auto; }
.modal-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 24px; }
.modal-header-text { min-width: 0; }
.modal-title { font-size: 22px; font-weight: 600; letter-spacing: -.6px; line-height: 1.3; }
.modal-desc { margin-top: 10px; color: var(--color-text-muted); font-size: 13px; line-height: 1.7; }
.modal-close-btn { margin: -8px -8px 0 0; }
.modal-form { display: grid; gap: 20px; }
.avatar-preview-box { display: flex; align-items: center; gap: 16px; padding: 16px; border-radius: 8px; background: var(--color-bg-surface-subtle); }
.avatar-preview-info { display: grid; gap: 4px; }
.avatar-preview-title { color: var(--color-text-secondary); font-size: 13px; font-weight: 500; }
.avatar-preview-subtitle { color: var(--color-text-muted); font-size: 12px; line-height: 1.5; }
.input-with-action, .input-with-button { display: flex; align-items: center; gap: 8px; min-width: 0; }
.input-with-action input, .input-with-button input { flex: 1; min-width: 0; }
.input-with-action button, .input-with-button button { flex: 0 0 auto; }
.input-with-action .icon-button { border: 1px solid var(--color-border-subtle); }
.validation-hint, .input-hint { color: var(--color-text-muted); font-size: 12px; line-height: 1.6; }
.validation-hint.error, .input-hint.error { color: var(--color-danger-text); }
.modal-footer { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 12px; padding-top: 20px; margin-top: 4px; border-top: 1px solid var(--color-border-subtle); }
.guide-modal-box { max-width: 820px; }
.modal-badge-guide { display: block; margin-bottom: 8px; color: var(--color-brand-primary); font-size: 11px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
.guide-modal-body { display: grid; gap: 24px; }
.guide-tabs-nav { display: flex; gap: 6px; padding-bottom: 12px; border-bottom: 1px solid var(--color-border-subtle); overflow-x: auto; }
.guide-tab-btn { flex: 0 0 auto; min-height: 44px; padding: 10px 12px; border: 1px solid transparent; border-radius: 8px; background: transparent; color: var(--color-text-muted); font-size: 12px; text-align: left; white-space: nowrap; }
.guide-tab-btn:hover { background: var(--color-bg-surface-subtle); }
.guide-tab-btn.active { background: var(--color-brand-primary-light); color: var(--color-brand-primary-text); }
.guide-tab-panel { color: var(--color-text-secondary); font-size: 14px; line-height: 1.75; }
.guide-tab-panel h3 { margin-bottom: 12px; color: var(--color-text-primary); font-size: 19px; font-weight: 600; letter-spacing: -.3px; line-height: 1.4; }
.guide-tab-panel p + p { margin-top: 12px; }
.guide-tab-panel ul, .guide-tab-panel ol { display: grid; gap: 12px; margin: 16px 0 0; padding-left: 22px; }
.guide-tab-panel strong { font-weight: 600; }
.guide-tab-panel a { text-underline-offset: 3px; }
.guide-modal-footer { justify-content: space-between; margin-top: 24px; }
.btn-ask-community { padding-left: 0; background: transparent; color: var(--color-brand-primary); font-weight: 500; text-align: left; }
@media (max-width: 959px) {
  .mobile-menu-toggle.icon-button { display: inline-flex; }
  .message-card { padding: 20px; }
  .composer-dock { padding: 20px; }
  .keyboard-guide { display: none; }
}
@media (max-width: 599px) {
  .filter-select-wrap { flex: auto; width: 100%; }
  .composer-bottom .composer-hints { width: 100%; }
  .composer-bottom .btn-post { width: 100%; margin-left: 0; }
  .nickname-pill { width: 44px; padding: 5px; border-color: transparent; }
  .btn-lang-toggle { font-size: 12px; padding-inline: 8px; }
  .composer-toolbar { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .composer-nickname-container { grid-column: 1 / -1; }
  .composer-dock { padding: 20px 16px; gap: 16px; }
  .composer-textarea { min-height: 112px; font-size: 16px; }
  .message-card { padding: 20px 16px; }
  .message-card-header { gap: 8px; }
  .message-time, .message-timestamp { font-size: 10px; }
  .message-card-body { font-size: 14px; }
  .author-info, .message-author-wrap { gap: 6px; }
  .message-card-footer .action-btn, .message-location { min-height: 44px; }
  .empty-state, .feed-empty-state, .empty-state-card { min-height: 248px; padding: 28px 20px; }
  .empty-state-title { font-size: 19px; }
  .modal-container, .modal-dialog { padding: 16px; }
  .modal-box { padding: 24px 20px; max-height: calc(100dvh - 32px); }
  .modal-header { gap: 8px; margin-bottom: 20px; }
  .modal-title { font-size: 20px; }
  .modal-footer > .btn-primary, .modal-footer > .btn-secondary { flex: 1; }
  .guide-modal-footer .btn-ask-community { width: 100%; }
  .guide-tab-panel { font-size: 13px; }
}
@media (max-width: 359px) {
  .composer-toolbar { grid-template-columns: minmax(0, 1fr); }
  .composer-nickname-container { grid-column: auto; }
  .message-card-header { flex-wrap: wrap; }
  .message-time, .message-timestamp { margin-top: 0; }
  .input-with-action, .input-with-button { flex-wrap: wrap; }
}