/**
 * Hyperrealistic photo backgrounds for chat empty state (Multoc Background)
 */

.photo-background-layer {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-color: #050810;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    opacity: 0;
    transform: scale(1.02) translateX(0);
    filter: blur(0px) brightness(1);
    will-change: transform, opacity, filter;
    transition:
        opacity 1.1s ease-in-out,
        transform var(--chat-focus-duration, 0.72s) var(--chat-focus-ease, cubic-bezier(0.22, 1, 0.36, 1)),
        filter var(--chat-focus-duration, 0.72s) var(--chat-focus-ease, cubic-bezier(0.22, 1, 0.36, 1));
}

.photo-background-layer--visible {
    opacity: 1;
    transform: scale(1) translateX(0);
    z-index: 1;
}

.photo-background-layer--b.photo-background-layer--visible {
    animation: photoKenBurns 72s ease-in-out infinite alternate;
}

.photo-background-layer--a.photo-background-layer--visible {
    animation: photoKenBurnsAlt 84s ease-in-out infinite alternate;
}

.photo-background-layer::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 90% 70% at 50% 40%, rgba(5, 8, 16, 0.15) 0%, rgba(2, 3, 5, 0.62) 72%),
        linear-gradient(180deg, rgba(5, 8, 16, 0.48) 0%, rgba(2, 3, 5, 0.78) 100%);
    pointer-events: none;
    opacity: 1;
    transition: opacity var(--chat-focus-duration, 0.72s) var(--chat-focus-ease, cubic-bezier(0.22, 1, 0.36, 1));
}

.photo-background-layer::after {
    content: '';
    position: absolute;
    inset: 0;
    box-shadow: inset 0 0 120px rgba(0, 0, 0, 0.45);
    pointer-events: none;
    opacity: 1;
    transition: opacity var(--chat-focus-duration, 0.72s) var(--chat-focus-ease, cubic-bezier(0.22, 1, 0.36, 1));
}


@keyframes photoKenBurnsAlt {
    0% { transform: scale(1) translateX(0); }
    100% { transform: scale(1.045) translateX(-0.4%); }
}

@keyframes photoKenBurns {
    0% { transform: scale(1.02) translateX(0.3%); }
    100% { transform: scale(1.05) translateX(-0.3%); }
}

@media (prefers-reduced-motion: reduce) {
    .photo-background-layer--a.photo-background-layer--visible,
    .photo-background-layer--b.photo-background-layer--visible {
        animation: none;
    }
    .photo-background-layer {
        transition: opacity 0.6s ease;
    }
}

/* Hide starfield + cyan star gradient when photo mode active */
body.background-mode-photo .chat-empty-bg .star,
body.background-mode-photo .chat-empty-bg .shooting-star {
    display: none !important;
}

body.background-mode-photo .chat-empty-bg::before {
    display: none !important;
}

[data-theme="light"] body.background-mode-photo .photo-background-layer::before,
[data-theme="glass"] body.background-mode-photo .photo-background-layer::before {
    background:
        radial-gradient(ellipse 90% 70% at 50% 40%, rgba(245, 245, 247, 0.08) 0%, rgba(16, 18, 26, 0.55) 72%),
        linear-gradient(180deg, rgba(16, 18, 26, 0.52) 0%, rgba(8, 10, 16, 0.82) 100%);
}

/* Full-viewport backdrop (dark / system) — photo mode */
html[data-theme="dark"] body.background-mode-photo .app-stars-backdrop,
html[data-theme="system"] body.background-mode-photo .app-stars-backdrop {
    position: fixed;
    inset: 0;
    top: 0 !important;
    z-index: 0;
    pointer-events: none;
}

html[data-theme="dark"] body.background-mode-photo:has(.main-content.chat-empty) .app-stars-backdrop,
html[data-theme="system"] body.background-mode-photo:has(.main-content.chat-empty) .app-stars-backdrop {
    --chat-backdrop-blur: 0px;
    --chat-backdrop-scale: 1;
}

html[data-theme="dark"] body.background-mode-photo:has(.sidebar) .photo-background-layer--visible,
html[data-theme="system"] body.background-mode-photo:has(.sidebar) .photo-background-layer--visible {
    filter: brightness(1.01) saturate(0.58) contrast(1.02);
    transform: scale(1.02);
}

html[data-theme="dark"] body.background-mode-photo:has(.main-content.chat-empty) .photo-background-layer--visible,
html[data-theme="system"] body.background-mode-photo:has(.main-content.chat-empty) .photo-background-layer--visible {
    transform: none;
}

html[data-theme="dark"] body.background-mode-photo:has(.sidebar) .photo-background-layer::before,
html[data-theme="system"] body.background-mode-photo:has(.sidebar) .photo-background-layer::before {
    background:
        radial-gradient(ellipse 90% 70% at 50% 40%, rgba(24, 24, 30, 0.06) 0%, rgba(14, 14, 18, 0.38) 72%),
        linear-gradient(180deg, rgba(18, 18, 24, 0.28) 0%, rgba(10, 10, 14, 0.48) 100%);
    opacity: 0.44;
}

html[data-theme="dark"] body.background-mode-photo:has(.sidebar) .photo-background-layer::after,
html[data-theme="system"] body.background-mode-photo:has(.sidebar) .photo-background-layer::after {
    box-shadow: inset 0 0 100px rgba(0, 0, 0, 0.32);
    opacity: 0.46;
}

html[data-theme="light"] body.background-mode-photo .app-stars-backdrop,
html[data-theme="glass"] body.background-mode-photo .app-stars-backdrop {
    position: fixed;
    inset: 0;
    top: 0 !important;
    z-index: 0;
    opacity: 0.5;
    display: block !important;
}

/* Settings panel chips */
.background-category-panel {
    margin-top: 12px;
}

.background-category-hint {
    margin: 0 0 8px 0;
    font-size: 11px;
    line-height: 1.4;
}

.background-category-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.background-category-chip {
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.background-category-chip:hover {
    border-color: var(--accent-primary, #00d9ff);
    color: var(--accent-primary, #00d9ff);
}

.background-category-chip.background-category-chip--active {
    background: rgba(0, 217, 255, 0.12);
    border-color: var(--accent-primary, #00d9ff);
    color: var(--accent-primary, #00d9ff);
}

.background-settings-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
}

.background-settings-hint {
    flex: 1 1 180px;
    margin: 0;
}

.btn-secondary--compact {
    padding: 6px 12px;
    font-size: 12px;
    min-height: 0;
}

body.voice-mode-active.background-mode-photo .chat-empty-bg {
    opacity: 0.2;
}

/* Sidebar — background controls (dentro do menu conta) */
.sidebar-ambient-controls {
    --sidebar-ambient-row-h: 32px;
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: flex-start;
    gap: 6px;
    width: 100%;
    min-height: var(--sidebar-ambient-row-h);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.sidebar-ambient-link {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1 1 auto;
    min-width: 0;
    height: var(--sidebar-ambient-row-h);
    min-height: var(--sidebar-ambient-row-h);
    max-height: var(--sidebar-ambient-row-h);
    padding: 0 4px;
    box-sizing: border-box;
    border: none;
    border-radius: 6px;
    background: transparent !important;
    color: rgba(255, 255, 255, 0.48);
    font-family: inherit;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.02em;
    text-align: left;
    cursor: pointer;
    transition: color 0.2s ease;
}

.sidebar-ambient-link:hover,
.sidebar-ambient-link:focus-visible {
    color: rgba(255, 255, 255, 0.92);
    outline: none;
}

.sidebar-ambient-link--active {
    color: rgba(255, 255, 255, 0.72);
}

.sidebar-ambient-link--next {
    flex: 0 0 28px;
    justify-content: center;
    align-items: center;
    width: 28px;
    min-width: 28px;
    height: var(--sidebar-ambient-row-h);
    min-height: var(--sidebar-ambient-row-h);
    max-height: var(--sidebar-ambient-row-h);
    padding: 0;
    box-sizing: border-box;
    opacity: 0.48;
    transition: opacity 0.2s ease, visibility 0.2s ease, flex-basis 0.2s ease, width 0.2s ease, min-width 0.2s ease;
}

.sidebar-ambient-link--favorite {
    flex: 0 0 28px;
    justify-content: center;
    align-items: center;
    width: 28px;
    min-width: 28px;
    height: var(--sidebar-ambient-row-h);
    min-height: var(--sidebar-ambient-row-h);
    max-height: var(--sidebar-ambient-row-h);
    padding: 0;
    box-sizing: border-box;
    opacity: 0.48;
    transition: opacity 0.2s ease, visibility 0.2s ease, flex-basis 0.2s ease, width 0.2s ease, min-width 0.2s ease, color 0.2s ease;
}

.sidebar-ambient-link--favorite.is-dormant,
.sidebar-ambient-link--next.is-dormant {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    width: 0;
    min-width: 0;
    padding: 0;
    overflow: hidden;
}

.sidebar-ambient-link--favorite:not(.is-dormant),
.sidebar-ambient-link--next:not(.is-dormant) {
    visibility: visible;
    pointer-events: auto;
}

.sidebar-ambient-link--favorite:hover,
.sidebar-ambient-link--favorite:focus-visible,
.sidebar-ambient-link--next:hover,
.sidebar-ambient-link--next:focus-visible {
    opacity: 0.92;
}

.sidebar-ambient-link--favorite.is-favorite {
    color: rgba(255, 210, 80, 0.95);
    opacity: 0.92;
}

.sidebar-ambient-link--favorite.is-favorite svg {
    fill: currentColor;
}

.sidebar-ambient-link--favorite.is-dormant:hover,
.sidebar-ambient-link--favorite.is-dormant:focus-visible,
.sidebar-ambient-link--next.is-dormant:hover,
.sidebar-ambient-link--next.is-dormant:focus-visible {
    opacity: 0;
}

.sidebar-account-menu .sidebar-account-menu-ambient {
    position: relative;
    z-index: 2;
    padding-top: 0;
    box-sizing: border-box;
}

/* Preview da imagem no menu conta — translúcido como modais glass */
.sidebar-account-menu .sidebar-ambient-thumb {
    flex: 0 0 24px;
    width: 24px;
    height: 24px;
    border-radius: 6px;
    background-color: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.sidebar-account-menu .sidebar-ambient-thumb.is-visible {
    opacity: 0.52;
}

[data-theme="light"] .sidebar-account-menu .sidebar-ambient-thumb,
[data-theme="glass"] .sidebar-account-menu .sidebar-ambient-thumb {
    background-color: rgba(255, 255, 255, 0.35);
    border-color: rgba(15, 23, 42, 0.1);
}

[data-theme="light"] .sidebar-account-menu .sidebar-ambient-thumb.is-visible,
[data-theme="glass"] .sidebar-account-menu .sidebar-ambient-thumb.is-visible {
    opacity: 0.68;
}

.sidebar-ambient-link--favorite.sidebar-ambient-tip[data-tooltip],
.sidebar-ambient-link--next.sidebar-ambient-tip[data-tooltip] {
    position: relative;
}

.sidebar-ambient-link--favorite.sidebar-ambient-tip[data-tooltip]::after,
.sidebar-ambient-link--next.sidebar-ambient-tip[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 6px);
    top: auto;
    right: 0;
    left: auto;
    transform: none;
    padding: 4px 8px;
    border-radius: 6px;
    background: rgba(10, 14, 22, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.32);
    color: rgba(255, 255, 255, 0.94);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.01em;
    line-height: 1.3;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.14s ease 0.04s, visibility 0.14s ease 0.04s;
    z-index: 130;
}

.sidebar-ambient-link--favorite.sidebar-ambient-tip[data-tooltip]:hover::after,
.sidebar-ambient-link--favorite.sidebar-ambient-tip[data-tooltip]:focus-visible::after,
.sidebar-ambient-link--next.sidebar-ambient-tip[data-tooltip]:hover::after,
.sidebar-ambient-link--next.sidebar-ambient-tip[data-tooltip]:focus-visible::after {
    opacity: 1;
    visibility: visible;
}

.sidebar-ambient-rail-icon {
    display: none;
    flex-shrink: 0;
    width: 13px;
    height: 13px;
    opacity: 0.55;
}

.sidebar-ambient-rail-icon svg {
    display: block;
    width: 13px;
    height: 13px;
}

.sidebar.sidebar-collapsed.sidebar-collapsed--rail .sidebar-ambient-rail-icon {
    display: block;
}

.sidebar-ambient-thumb {
    flex: 0 0 20px;
    width: 20px;
    height: 20px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.04);
    background-size: cover;
    background-position: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

.sidebar-ambient-thumb.is-visible {
    opacity: 1;
    visibility: visible;
}

.sidebar-ambient-link-label {
    display: inline-block;
    min-width: 5.35rem;
    line-height: 20px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar.sidebar-collapsed.sidebar-collapsed--rail .sidebar-ambient-controls {
    justify-content: center;
    align-items: center;
    width: auto;
    min-height: 0;
    padding: 0 2px 0;
}

.sidebar.sidebar-collapsed.sidebar-collapsed--rail .sidebar-ambient-link--next.is-dormant {
    flex-basis: 0;
    width: 0;
    min-width: 0;
    overflow: hidden;
}

.sidebar.sidebar-collapsed.sidebar-collapsed--rail .sidebar-ambient-link {
    justify-content: center;
    flex: 0;
    height: auto;
    min-height: 0;
    max-height: none;
    padding: 6px 4px;
}

.sidebar.sidebar-collapsed.sidebar-collapsed--rail .sidebar-ambient-link-label {
    display: none;
}

.sidebar.sidebar-collapsed.sidebar-collapsed--rail .sidebar-ambient-thumb {
    display: none;
}