/*
 * XERION — Page-Specific Components
 * ------------------------------------------------------------
 * Phase 13: Settings navigation/content, Desktop hero/pairing/
 * capabilities, Billing plans, Integrations cards, and the
 * Files/Memory/Activity card lists had no real CSS anywhere in
 * the codebase — only dead, mistargeted overrides existed in
 * responsive.css (or nothing at all). This file gives those
 * markup blocks real, design-system-consistent styling.
 */


/* =========================================================
   PAGE TOOLBAR (Files / Projects / Memory search row)
   ------------------------------------------------------------
   .files-toolbar had no base display:flex anywhere — the
   mobile "column" override in responsive.css was a no-op.
========================================================== */

.page-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;

    margin-bottom: 16px;
}


/* =========================================================
   SETTINGS
========================================================== */

.settings-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
}

.settings-navigation {
    display: flex;
    flex-direction: column;
    gap: 2px;

    padding: 8px;

    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-xs);

    position: sticky;
    top: 0;
}

.settings-nav-item {
    display: block;
    width: 100%;
    text-align: left;

    padding: 10px 12px;

    border: none;
    border-radius: var(--radius-small);
    background: transparent;

    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-soft);

    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.settings-nav-item:hover {
    background: var(--surface-hover);
    color: var(--text);
}

.settings-nav-item.is-active {
    background: var(--blue-light);
    color: var(--blue-dark);
}

.settings-content {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.settings-section {
    display: none;
}

.settings-section.is-active {
    display: block;
}

.settings-section h2 {
    margin: 0 0 4px;
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
}

.settings-description {
    margin: 0 0 20px;
    font-size: 13.5px;
    color: var(--muted);
}

.settings-card {
    display: flex;
    flex-direction: column;

    padding: 4px 20px;

    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-xs);
}

.settings-card .setting-row {
    border-bottom: 1px solid var(--border);
}

.settings-card .setting-row:last-child {
    border-bottom: none;
}

.settings-admin-day {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.settings-admin-day:last-child {
    border-bottom: none;
}

.settings-admin-day strong {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text);
}

.settings-admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12.5px;
}

.settings-admin-table th,
.settings-admin-table td {
    padding: 6px 8px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    color: var(--muted);
}

.settings-admin-table th {
    font-weight: 600;
    color: var(--text);
}

.settings-admin-table tbody tr:last-child td {
    border-bottom: none;
}

.setting-row strong {
    display: block;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text);
}

.setting-row > div > span {
    display: block;
    margin-top: 2px;
    font-size: 12.5px;
    color: var(--muted);
}

/* Quick fix: the Connected Devices icon SVG had no width/height
   constraint anywhere, so it scaled to its own viewBox instead of a
   small fixed size — never caught in Phase 13 because no device was
   paired during that pass. Sized to match the same icon-in-a-box
   convention used everywhere else (.integration-icon, .file-card-icon,
   .memory-card-icon, .activity-item-icon). */
.settings-device-icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;

    display: flex;
    align-items: center;
    justify-content: center;

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

    background: var(--surface-soft);
    color: var(--muted);
}

.settings-device-icon svg {
    width: 18px;
    height: 18px;
}

/* Same root cause, same fix, found live while verifying the above: the
   "no connected devices" empty-state icon has the identical unbounded
   SVG — and since this is what a brand-new user sees by default
   (before ever pairing a device), it's actually the more commonly-hit
   path. Matches the established generic empty-state icon convention
   (.component-empty-icon) already used elsewhere. */
.settings-empty-state {
    padding: 40px 20px;
    text-align: center;
}

.settings-empty-icon {
    width: 48px;
    height: 48px;

    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;

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

    background: var(--surface-soft);
    color: var(--muted);
}

.settings-empty-icon svg {
    width: 21px;
    height: 21px;
}


/* =========================================================
   DESKTOP
========================================================== */

.desktop-hero-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-large);
    background: var(--surface);
    box-shadow: var(--shadow-small);
    overflow: hidden;
}

.desktop-card-content {
    padding: 28px;
}

.desktop-card-content h2 {
    margin: 10px 0 6px;
    font-size: 19px;
    font-weight: 600;
    color: var(--text);
}

.desktop-card-content > p {
    margin: 0 0 20px;
    font-size: 13.5px;
    color: var(--muted);
    max-width: 520px;
}

.desktop-status {
    display: flex;
    align-items: center;
    gap: 8px;

    font-size: 12.5px;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.desktop-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.desktop-download-meta {
    color: var(--muted);
    font-size: 13px;
}

.desktop-download-meta[hidden] {
    display: none;
}

.desktop-pairing-panel {
    padding: 16px 18px;
    margin-bottom: 20px;

    border: 1px dashed var(--border-strong);
    border-radius: var(--radius);
    background: var(--surface-soft);
}

.desktop-pairing-panel p {
    margin: 0 0 8px;
    font-size: 13px;
    color: var(--text-soft);
}

.desktop-pairing-panel p:last-child {
    margin: 8px 0 0;
    color: var(--muted);
    font-size: 12px;
}

.desktop-pairing-panel code {
    display: block;
    padding: 10px 12px;

    border-radius: var(--radius-small);
    background: var(--text);
    color: var(--white);

    font-size: 13px;
    font-family: ui-monospace, "SF Mono", Consolas, monospace;
    letter-spacing: 0.01em;
}

.desktop-device-identity {
    display: grid;
    grid-template-columns: max-content minmax(0, 1fr);
    gap: 8px 16px;

    margin: 0 0 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.desktop-device-identity dt {
    font-size: 12.5px;
    color: var(--muted);
}

.desktop-device-identity dd {
    margin: 0;
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
}

.desktop-confirm-banner {
    padding: 16px 18px;

    border: 1px solid var(--warning);
    border-radius: var(--radius);
    background: var(--warning-light);
}

.desktop-confirm-banner strong {
    display: block;
    margin-bottom: 4px;
    font-size: 13.5px;
    color: var(--text);
}

.desktop-confirm-banner p {
    margin: 0;
    font-size: 13px;
    color: var(--text-soft);
}

.desktop-confirm-actions {
    display: flex;
    gap: 10px;
    margin-top: 14px;
}

.desktop-device-list {
    display: flex;
    flex-direction: column;
    gap: 10px;

    margin: 20px 0;
}

.desktop-device-item {
    display: flex;
    flex-direction: column;
    gap: 8px;

    padding: 10px 2px;
    border-bottom: 1px solid var(--border);
}

.desktop-device-item:last-child {
    border-bottom: none;
}

.desktop-device-sync {
    display: flex;
    align-items: center;
    gap: 10px;

    padding-left: 2px;
    font-size: 12.5px;
    color: var(--muted);
}

.desktop-device-sync select {
    flex: 1;
    min-width: 0;
    max-width: 260px;

    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-small);
    background: var(--surface);
    color: var(--text);
    font-size: 12.5px;
}

.desktop-capabilities {
    margin-top: 8px;
}

.capability-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.capability-card {
    padding: 18px 20px;

    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-xs);
}

.capability-card h3 {
    margin: 0 0 6px;
    font-size: 14.5px;
    font-weight: 600;
    color: var(--text);
}

.capability-card p {
    margin: 0;
    font-size: 13px;
    color: var(--muted);
}


/* =========================================================
   INTEGRATIONS
========================================================== */

.integrations-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.integration-card {
    display: flex;
    flex-direction: column;

    padding: 20px;

    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-xs);
}

.integration-card.integration-card-disabled {
    background: var(--surface-soft);
    box-shadow: none;
}

.integration-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.integration-icon {
    width: 38px;
    height: 38px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: var(--radius-small);
    background: var(--blue-light);

    font-size: 15px;
    font-weight: 700;
    color: var(--blue-dark);
}

/* Logo files (e.g. assets/mailmind-logo.svg) sit inside the same box
   the letter placeholders use — any aspect ratio fits, so swapping in
   a real logo at the same path needs no CSS change. */
.integration-icon img {
    display: block;
    width: 22px;
    height: 22px;
    object-fit: contain;
}

/* Real logos are usually drawn for a light background (VELYN's is
   dark navy) — on the dark theme's dark box they vanish. Give logo
   tiles a light backing there; same selectors global.css uses to
   switch the palette. */
:root[data-theme="dark"] .integration-icon:has(> img),
:root[data-theme="system"] .integration-icon:has(> img) {
    background: #e6ebf5;
}

@media (prefers-color-scheme: light) {
    :root[data-theme="system"] .integration-icon:has(> img) {
        background: var(--blue-light);
    }
}

.integration-card-disabled .integration-icon {
    background: var(--surface-hover);
    color: var(--muted);
}

.integration-status {
    font-size: 11.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--success);
}

.integration-card-disabled .integration-status {
    color: var(--muted);
}

.integration-card h3 {
    margin: 0 0 6px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

.integration-card p {
    margin: 0 0 16px;
    font-size: 13px;
    color: var(--muted);
    flex: 1;
}


/* =========================================================
   BILLING
========================================================== */

.billing-current-plan {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;

    padding: 22px 26px;
    margin-bottom: 24px;

    border: 1px solid var(--border);
    border-radius: var(--radius-large);
    background: var(--surface);
    box-shadow: var(--shadow-small);
}

.billing-current-plan h2 {
    margin: 6px 0 4px;
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
}

.billing-current-plan p {
    margin: 0;
    font-size: 13.5px;
    color: var(--muted);
}

.billing-plans {
    display: grid;
    /* Four tiers (Free/Core/Pro/Max) — as many columns as fit. */
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 16px;
}

/* "Used today" — real counters and limits (Phase 18) */
.billing-usage-panel {
    margin-top: 24px;
    padding: 20px;

    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-xs);
}

.billing-usage-panel:empty {
    display: none;
}

.billing-usage-panel h3 {
    margin: 0 0 2px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

.billing-usage-note {
    margin: 0 0 12px;
    font-size: 12.5px;
    color: var(--muted);
}

.billing-usage-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 10px 24px;

    margin: 0;
    padding: 0;
    list-style: none;
}

.billing-usage-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 4px 12px;
    align-items: baseline;

    font-size: 13px;
}

.billing-usage-label {
    color: var(--text-soft);
}

.billing-usage-value {
    font-weight: 600;
    color: var(--text);
}

.billing-usage-row.is-locked .billing-usage-label,
.billing-usage-row.is-locked .billing-usage-value {
    color: var(--muted);
    font-weight: 500;
}

/* Block E3: shared lock-badge icon (components.js's lockBadgeHtml),
   replacing a plain 🔒 emoji -- used here and on the integration
   (MailMind) card's status badge. */
.lock-badge-icon {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
    vertical-align: -1.5px;
    margin-right: 3px;
}

.billing-usage-bar {
    grid-column: 1 / -1;
    height: 5px;
    border-radius: 3px;
    background: var(--surface-hover);
    overflow: hidden;
}

.billing-usage-bar > span {
    display: block;
    height: 100%;
    border-radius: 3px;
    background: var(--blue);
}

.chat-upgrade-button {
    margin-left: 8px;
}

.billing-plan-card {
    position: relative;
    display: flex;
    flex-direction: column;

    padding: 22px;

    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-xs);
}

.billing-plan-card.is-featured {
    border-color: var(--blue);
    box-shadow: var(--shadow);
}

.plan-name {
    font-size: 12.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--muted);
}

.billing-plan-card h3 {
    margin: 8px 0 4px;
    font-size: 26px;
    font-weight: 700;
    color: var(--text);
}

.billing-plan-card p {
    margin: 0 0 18px;
    font-size: 13px;
    color: var(--muted);
    flex: 1;
}

.plan-badge {
    position: absolute;
    top: 20px;
    right: 20px;

    padding: 3px 9px;

    border-radius: var(--radius-xs);
    background: var(--blue-light);

    font-size: 11px;
    font-weight: 600;
    color: var(--blue-dark);
}

/* Markup rendered by billing.js (renderPlans) */

.billing-plan-badge {
    position: absolute;
    top: 20px;
    right: 20px;

    padding: 3px 9px;

    border-radius: var(--radius-xs);
    background: var(--blue-light);

    font-size: 11px;
    font-weight: 600;
    color: var(--blue-dark);
}

.billing-plan-header {
    margin-bottom: 14px;
}

.billing-plan-header h3 {
    margin: 0 0 6px;
    font-size: 20px;
}

.billing-plan-header p {
    flex: none;
    margin: 0;
}

.billing-plan-price {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin-bottom: 16px;
}

.billing-plan-price strong {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
}

.billing-plan-price span {
    font-size: 13px;
    color: var(--muted);
}

.billing-plan-features {
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 8px;

    margin: 0 0 20px;
    padding: 0;

    list-style: none;
    font-size: 13px;
    color: var(--text);
}

.billing-plan-features li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.billing-feature-icon {
    flex: none;
    font-weight: 700;
    color: var(--blue);
}

.billing-plan-button {
    width: 100%;
    margin-top: auto;
}

.billing-plan-card.is-current {
    border-color: var(--blue);
}


/* =========================================================
   SHARED CARD-LIST PRIMITIVES
   (Files / Memory / Activity)
========================================================== */

.files-loading,
.files-empty,
.memory-loading,
.memory-empty,
.activity-loading,
.activity-empty {
    padding: 48px 20px;
    text-align: center;
    color: var(--muted);
    font-size: 13.5px;
}

.files-empty h3,
.memory-empty h3,
.activity-empty h3 {
    margin: 0 0 6px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

.files-empty p,
.memory-empty p,
.activity-empty p {
    margin: 0;
    font-size: 13px;
}

.file-action-button,
.memory-action-button,
.activity-action-button {
    padding: 6px 12px;

    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    background: var(--surface);

    font-size: 12px;
    font-weight: 500;
    color: var(--text-soft);

    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.file-action-button:hover,
.memory-action-button:hover,
.activity-action-button:hover {
    background: var(--surface-hover);
    color: var(--text);
}

.file-action-button[data-file-action="delete"]:hover {
    border-color: var(--danger);
    color: var(--danger);
}


/* =========================================================
   FILES
========================================================== */

.files-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.file-card {
    display: flex;
    flex-direction: column;

    padding: 16px;

    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-xs);

    transition: border-color var(--transition-fast);
}

.file-card.is-selected {
    border-color: var(--blue);
}

.file-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.file-card-icon {
    width: 34px;
    height: 34px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: var(--radius-small);
    background: var(--surface-soft);

    font-size: 16px;
}

.file-card-select {
    width: 20px;
    height: 20px;

    display: flex;
    align-items: center;
    justify-content: center;

    border: 1px solid var(--border-strong);
    border-radius: 50%;
    background: var(--surface);

    font-size: 11px;
    color: var(--white);

    cursor: pointer;
}

.file-card.is-selected .file-card-select {
    background: var(--blue);
    border-color: var(--blue);
}

.file-card-body {
    flex: 1;
    margin-bottom: 12px;
}

.file-card-title {
    margin: 0 0 6px;

    font-size: 13.5px;
    font-weight: 600;
    color: var(--text);

    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-card-meta {
    display: flex;
    gap: 8px;

    font-size: 12px;
    color: var(--muted);
}

.file-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;

    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.file-card-date {
    font-size: 11.5px;
    color: var(--muted-light);
}

.file-card-actions {
    display: flex;
    gap: 6px;
}


/* =========================================================
   MEMORY
========================================================== */

.memory-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.memory-card {
    display: flex;
    flex-direction: column;

    padding: 16px 18px;

    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-xs);
}

.memory-card.is-disabled {
    background: var(--surface-soft);
    opacity: 0.7;
}

.memory-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.memory-card-icon {
    width: 28px;
    height: 28px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: var(--radius-small);
    background: var(--blue-light);

    font-size: 14px;
}

.memory-card-category {
    font-size: 11.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--muted);
}

.memory-card-content {
    margin: 0 0 10px;
    font-size: 13.5px;
    line-height: 1.55;
    color: var(--text-soft);
}

.memory-card-meta {
    display: flex;
    gap: 14px;
    margin-bottom: 12px;

    font-size: 12px;
    color: var(--muted-light);
}

.memory-card-actions {
    display: flex;
    gap: 6px;
}


/* =========================================================
   ACTIVITY
========================================================== */

.activity-day + .activity-day {
    margin-top: 22px;
}

.activity-day-title {
    margin: 0 0 10px;

    font-size: 12.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--muted);
}

.activity-day-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.activity-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;

    padding: 14px 16px;

    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-xs);
}

.activity-item-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: var(--radius-small);
    background: var(--surface-soft);

    font-size: 15px;
}

.activity-item-content {
    flex: 1;
    min-width: 0;
}

.activity-item-title {
    margin: 0 0 3px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text);
}

.activity-item-description {
    margin: 0 0 8px;
    font-size: 13px;
    color: var(--muted);
}

.activity-item-meta {
    display: flex;
    gap: 12px;

    font-size: 11.5px;
    color: var(--muted-light);
}

.activity-item-actions {
    flex-shrink: 0;
}