/*
 * Lab Design System — core components + overflow utilities (phase 2).
 * Depends on lab_tokens.css. Surface skins (labd.css) may dual-class for pilots.
 *
 * Naming: .lab-btn / .lab-chip / .lab-text--* / .lab-sheet / .lab-modal / .lab-card
 */

/* -------------------------------------------------------------------------- */
/* Button                                                                     */
/* -------------------------------------------------------------------------- */

.lab-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--lab-space-2);
    box-sizing: border-box;
    margin: 0;
    border-radius: var(--lab-radius-pill);
    border: 1px solid var(--lab-border-strong, rgba(255, 255, 255, 0.18));
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.025));
    color: var(--lab-fg, #f3f5f8);
    font-family: var(--lab-font-dems, var(--lab-font));
    font-weight: 600;
    line-height: 1.2;
    text-align: center;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    -webkit-tap-highlight-color: transparent;
    transition: transform var(--lab-motion-fast, 140ms) var(--lab-ease-standard, ease),
                opacity var(--lab-motion-fast, 140ms) var(--lab-ease-standard, ease);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 6px 16px -8px rgba(0, 0, 0, 0.55);
}

.lab-btn:focus-visible {
    outline: none;
    box-shadow: var(--lab-focus-ring, 0 0 0 2px rgba(124, 246, 10, 0.55));
}

.lab-btn:disabled,
.lab-btn.is-disabled {
    opacity: 0.42;
    cursor: not-allowed;
    box-shadow: none;
}

.lab-btn.is-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.lab-btn.is-loading::after {
    content: '';
    position: absolute;
    width: 1.1em;
    height: 1.1em;
    border: 2px solid rgba(255, 255, 255, 0.25);
    border-top-color: currentColor;
    border-radius: 50%;
    animation: lab-btn-spin var(--lab-motion-fade, 200ms) linear infinite;
    /* restore visible spinner color via accent on primary below */
    color: var(--lab-fg, #fff);
}

.lab-btn--primary.is-loading::after {
    color: var(--lab-cta-ink, #f4fbe9);
    border-color: rgba(244, 251, 233, 0.25);
    border-top-color: var(--lab-cta-ink, #f4fbe9);
}

@keyframes lab-btn-spin {
    to { transform: rotate(360deg); }
}

/* Sizes */
.lab-btn--sm {
    min-height: var(--lab-control-h-sm, 36px);
    padding: var(--lab-space-2) var(--lab-space-3);
    font-size: 13px;
}

.lab-btn--md {
    min-height: var(--lab-control-h-md, 44px);
    padding: var(--lab-space-3) var(--lab-space-4);
    font-size: 14px;
}

.lab-btn--lg {
    min-height: var(--lab-control-h-lg, 52px);
    padding: var(--lab-space-3) var(--lab-space-5);
    font-size: 15px;
    font-weight: 700;
}

/* Width: hug contents / fill container (Figma Auto Layout) */
.lab-btn--hug {
    width: fit-content;
    max-width: 100%;
}

.lab-btn--fill {
    width: 100%;
}

/* Variants */
.lab-btn--primary {
    border-color: var(--lab-cta-border, rgba(185, 226, 140, 0.4));
    background: linear-gradient(90deg, var(--lab-cta-from, #a3e05f) 0%, var(--lab-cta-via, #74ac3f) 55%, var(--lab-cta-to, #3c6427) 100%);
    color: var(--lab-cta-ink, #f4fbe9);
    font-weight: 700;
    letter-spacing: 0.01em;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.35),
        inset 0 -8px 14px -6px rgba(0, 0, 0, 0.3),
        0 10px 26px -10px rgba(124, 246, 10, 0.4),
        0 2px 10px rgba(0, 0, 0, 0.35);
}

.lab-btn--primary:active:not(:disabled):not(.is-disabled) {
    transform: scale(0.98);
}

.lab-btn--secondary {
    border-color: var(--lab-border-strong, rgba(255, 255, 255, 0.18));
    background: var(--lab-glass-strong, rgba(255, 255, 255, 0.09));
    color: var(--lab-fg, #f3f5f8);
}

.lab-btn--ghost {
    border-color: rgba(255, 255, 255, 0.88);
    background: #000;
    color: #fff;
    box-shadow: none;
    font-weight: 650;
}

/* Сбросить, удалить, отмена: только надпись, без плашки и обводки */
.lab-btn--text {
    border-color: transparent;
    background: none;
    color: var(--lab-fg, #fff);
    box-shadow: none;
    font-weight: 600;
}

.lab-btn--text:active:not(:disabled):not(.is-disabled) {
    opacity: 0.6;
}

.lab-btn--ghost:active:not(:disabled):not(.is-disabled) {
    transform: scale(0.98);
}

.lab-btn--danger {
    border-color: rgba(255, 59, 48, 0.55);
    background: rgba(255, 59, 48, 0.16);
    color: #ff8a80;
    box-shadow: none;
}

/* Inverse / follow-listen pill (system UI font — Benzin склеивает кириллицу) */
.lab-btn--inverse {
    border-color: var(--lab-btn-inverse-border, transparent);
    background: var(--lab-btn-inverse-bg, #fff);
    color: var(--lab-btn-inverse-fg, #12141a);
    font-family: var(--lab-font-ui, var(--lab-font));
    font-weight: 600;
    letter-spacing: 0.02em;
    box-shadow: 0 8px 20px -10px rgba(0, 0, 0, 0.55);
}

.lab-btn--inverse.is-following,
.lab-btn--inverse[aria-pressed="true"] {
    background: var(--lab-btn-inverse-following-bg, transparent);
    color: var(--lab-btn-inverse-following-fg, var(--lab-fg, #f3f5f8));
    border-color: var(--lab-btn-inverse-following-border, rgba(255, 255, 255, 0.22));
    box-shadow: none;
}

/* Default size if none specified */
.lab-btn:not(.lab-btn--sm):not(.lab-btn--md):not(.lab-btn--lg) {
    min-height: var(--lab-control-h-md, 44px);
    padding: var(--lab-space-3) var(--lab-space-4);
    font-size: 14px;
}

/* -------------------------------------------------------------------------- */
/* Chip                                                                       */
/* -------------------------------------------------------------------------- */

.lab-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--lab-space-1);
    flex: 0 0 auto;
    box-sizing: border-box;
    min-height: 34px;
    padding: 0 var(--lab-space-3);
    border: 1px solid var(--lab-border, rgba(255, 255, 255, 0.12));
    border-radius: var(--lab-radius-pill);
    background: transparent;
    color: var(--lab-fg, #f3f5f8);
    font-family: var(--lab-font-dems, var(--lab-font));
    font-size: var(--lab-type-label-size, 13px);
    font-weight: 600;
    line-height: 1;
    cursor: default;
    -webkit-appearance: none;
    appearance: none;
    -webkit-tap-highlight-color: transparent;
}

button.lab-chip,
.lab-chip--selectable {
    cursor: pointer;
}

.lab-chip--selectable.is-active,
.lab-chip--selectable[aria-selected="true"] {
    background: #fff;
    border-color: #fff;
    color: #12141a;
}

.lab-chip--rank {
    border-color: transparent;
    background: var(--lab-glass, rgba(255, 255, 255, 0.05));
    font-size: var(--lab-type-caption-size, 11px);
}

/* -------------------------------------------------------------------------- */
/* Text overflow utilities                                                    */
/* -------------------------------------------------------------------------- */

.lab-text--wrap {
    white-space: normal;
    overflow-wrap: anywhere;
}

.lab-text--truncate {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Marquee — same behaviour as legacy .labd-marquee (one engine) */
.lab-text--marquee,
.labd-marquee {
    display: block;
    width: 100%;
    min-width: 0;
    overflow: hidden;
}

.lab-text--marquee__run,
.labd-marquee__run {
    display: inline-flex;
    align-items: baseline;
    max-width: none;
    white-space: nowrap;
    will-change: transform;
}

.lab-text--marquee__item,
.labd-marquee__item {
    flex: 0 0 auto;
    white-space: nowrap;
}

.lab-text--marquee.is-on .lab-text--marquee__item,
.labd-marquee.is-on .labd-marquee__item,
.lab-text--marquee.is-on .labd-marquee__item,
.labd-marquee.is-on .lab-text--marquee__item {
    padding-right: 2.2em;
}

.lab-text--marquee.is-on,
.labd-marquee.is-on {
    -webkit-mask-image: linear-gradient(90deg, #000 0, #000 calc(100% - 16px), transparent);
    mask-image: linear-gradient(90deg, #000 0, #000 calc(100% - 16px), transparent);
}

.lab-text--marquee.is-on.is-visible .lab-text--marquee__run,
.labd-marquee.is-on.is-visible .labd-marquee__run,
.lab-text--marquee.is-on.is-visible .labd-marquee__run,
.labd-marquee.is-on.is-visible .lab-text--marquee__run {
    animation: lab-marquee-x var(--lab-marquee-ms, var(--labd-marquee-ms, 8s)) linear infinite;
    animation-delay: 1.1s;
}

@keyframes lab-marquee-x {
    from { transform: translate3d(0, 0, 0); }
    to { transform: translate3d(calc(-1 * var(--lab-marquee-shift, var(--labd-marquee-shift, 0px))), 0, 0); }
}

/* Keep legacy keyframes name working if old CSS still references it */
@keyframes labd-marquee-x {
    from { transform: translate3d(0, 0, 0); }
    to { transform: translate3d(calc(-1 * var(--labd-marquee-shift, var(--lab-marquee-shift, 0px))), 0, 0); }
}

@media (prefers-reduced-motion: reduce) {
    .lab-text--marquee.is-on.is-visible .lab-text--marquee__run,
    .labd-marquee.is-on.is-visible .labd-marquee__run,
    .lab-text--marquee.is-on.is-visible .labd-marquee__run,
    .labd-marquee.is-on.is-visible .lab-text--marquee__run {
        animation: none;
    }
}

/* -------------------------------------------------------------------------- */
/* Sheet + Modal shell (minimal API)                                          */
/* -------------------------------------------------------------------------- */

.lab-sheet {
    position: fixed;
    inset: 0;
    z-index: var(--lab-z-sheet, 80);
}

.lab-sheet[hidden] {
    display: none !important;
}

.lab-sheet__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
}

.lab-sheet__panel {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    max-height: min(92vh, 720px);
    padding: var(--lab-space-4);
    padding-bottom: calc(var(--lab-space-4) + var(--lab-safe-bottom, 0px));
    border-radius: var(--lab-sheet-radius-top, 22px) var(--lab-sheet-radius-top, 22px) 0 0;
    background: var(--lab-surface-sheet, #14161f);
    border-top: 1px solid var(--lab-border-strong, rgba(255, 255, 255, 0.18));
    box-shadow: var(--lab-elevation-sheet, 0 -20px 60px -30px rgba(0, 0, 0, 0.85));
    color: var(--lab-fg, #f3f5f8);
    overflow: auto;
    -webkit-overflow-scrolling: touch;
}

.lab-modal {
    position: fixed;
    inset: 0;
    z-index: var(--lab-z-sheet, 80);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--lab-space-4);
}

.lab-modal[hidden] {
    display: none !important;
}

.lab-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.lab-modal__panel {
    position: relative;
    z-index: 1;
    width: min(100%, 400px);
    max-height: min(86vh, 640px);
    padding: var(--lab-space-5) var(--lab-space-4);
    border-radius: var(--lab-radius-lg);
    background: var(--lab-surface-card, #171b26);
    border: 1px solid var(--lab-border-strong, rgba(255, 255, 255, 0.18));
    box-shadow: var(--lab-elevation-card, 0 18px 40px -24px rgba(0, 0, 0, 0.8));
    color: var(--lab-fg, #f3f5f8);
    overflow: auto;
}

/* -------------------------------------------------------------------------- */
/* Card / Plaque                                                              */
/* -------------------------------------------------------------------------- */

.lab-card {
    box-sizing: border-box;
    min-width: 0;
    padding: var(--lab-space-4);
    border-radius: var(--lab-radius-lg);
    background: var(--lab-surface-card, #171b26);
    border: 1px solid var(--lab-border-strong, rgba(255, 255, 255, 0.18));
    box-shadow: var(--lab-elevation-card, 0 18px 40px -24px rgba(0, 0, 0, 0.8));
    color: var(--lab-fg, #f3f5f8);
}

.lab-card--quiet {
    background: var(--lab-surface-card-quiet, #12141c);
    box-shadow: var(--lab-elevation-card-quiet, 0 10px 22px -16px rgba(0, 0, 0, 0.6));
    border-color: var(--lab-border, rgba(255, 255, 255, 0.12));
}

.lab-plaque {
    box-sizing: border-box;
    min-width: 0;
    padding: var(--lab-space-3) var(--lab-space-4);
    border-radius: var(--lab-radius-md);
    background: var(--lab-glass, rgba(255, 255, 255, 0.05));
    border: 1px solid var(--lab-border, rgba(255, 255, 255, 0.12));
    color: var(--lab-fg, #f3f5f8);
}

/* -------------------------------------------------------------------------- */
/* Page background                                                            */
/* -------------------------------------------------------------------------- */

.lab-page--atmosphere {
    background: var(--lab-page-bg-atmosphere);
    background-attachment: fixed;
}

.lab-page--solid {
    background: var(--lab-page-bg-solid, #000);
    background-image: none;
}

/* -------------------------------------------------------------------------- */
/* Icon button — one close / circular control                                 */
/* -------------------------------------------------------------------------- */

.lab-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    width: var(--lab-icon-btn-size-md, 40px);
    height: var(--lab-icon-btn-size-md, 40px);
    border-radius: 50%;
    border: 1px solid var(--lab-icon-btn-border, rgba(255, 255, 255, 0.18));
    background: var(--lab-icon-btn-bg, rgba(255, 255, 255, 0.05));
    color: var(--lab-icon-btn-fg, var(--lab-fg, #f3f5f8));
    font-family: inherit;
    font-size: 22px;
    font-weight: 400;
    line-height: 1;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    -webkit-tap-highlight-color: transparent;
}

.lab-icon-btn--sm {
    width: var(--lab-icon-btn-size-sm, 34px);
    height: var(--lab-icon-btn-size-sm, 34px);
    font-size: 20px;
}

.lab-icon-btn:focus-visible {
    outline: none;
    box-shadow: var(--lab-focus-ring);
}

.lab-icon-btn:active {
    transform: scale(0.96);
}

/* -------------------------------------------------------------------------- */
/* Sentiment chips — liked / improve (review comments)                        */
/* -------------------------------------------------------------------------- */

.lab-chip--liked,
.lab-chip--improve {
    min-height: 22px;
    padding: 6px 10px 3px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    line-height: 1;
    cursor: default;
}

.lab-chip--liked {
    color: var(--lab-chip-liked-fg, #b7f06a);
    background: var(--lab-chip-liked-bg, rgba(124, 246, 10, 0.12));
    border-color: var(--lab-chip-liked-border, rgba(124, 246, 10, 0.22));
}

.lab-chip--improve {
    color: var(--lab-chip-improve-fg, #ffc27a);
    background: var(--lab-chip-improve-bg, rgba(255, 160, 60, 0.12));
    border-color: var(--lab-chip-improve-border, rgba(255, 160, 60, 0.22));
}

/* -------------------------------------------------------------------------- */
/* Avatar                                                                     */
/* -------------------------------------------------------------------------- */

.lab-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    box-sizing: border-box;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--lab-border, rgba(255, 255, 255, 0.12));
    background: var(--lab-glass-strong, rgba(255, 255, 255, 0.09));
    overflow: hidden;
    color: var(--lab-fg-subtle, rgba(226, 230, 238, 0.4));
}

.lab-avatar--sm { width: 32px; height: 32px; }
.lab-avatar--lg { width: 56px; height: 56px; }

.lab-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.lab-avatar--tint-fire {
    background: var(--lab-avatar-tint-fire-bg);
    border-color: var(--lab-avatar-tint-fire-border);
}

.lab-avatar--tint-ok {
    background: var(--lab-avatar-tint-ok-bg);
    border-color: var(--lab-avatar-tint-ok-border);
}

.lab-avatar--tint-raw {
    background: var(--lab-avatar-tint-raw-bg);
    border-color: var(--lab-avatar-tint-raw-border);
}

/* -------------------------------------------------------------------------- */
/* Field / composer                                                           */
/* -------------------------------------------------------------------------- */

.lab-field {
    display: block;
    box-sizing: border-box;
    width: 100%;
    min-height: var(--lab-control-h-md, 44px);
    padding: var(--lab-space-3) var(--lab-space-4);
    border-radius: var(--lab-radius-md);
    border: 1px solid var(--lab-field-border, rgba(255, 255, 255, 0.12));
    background: var(--lab-field-bg, rgba(255, 255, 255, 0.06));
    color: var(--lab-field-fg, var(--lab-fg, #f3f5f8));
    font-family: var(--lab-font-dems, var(--lab-font));
    font-size: 16px;
    line-height: 1.3;
}

.lab-field::placeholder {
    color: var(--lab-field-placeholder, var(--lab-fg-subtle));
}

.lab-field:focus {
    outline: none;
    box-shadow: var(--lab-focus-ring);
}

.lab-field--pill,
.lab-composer {
    border-radius: var(--lab-radius-pill);
    min-height: var(--lab-control-h-md, 44px);
}

.lab-composer {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 0 var(--lab-space-4);
    border: 1px solid var(--lab-field-border, rgba(255, 255, 255, 0.12));
    background: var(--lab-field-bg, rgba(255, 255, 255, 0.06));
    color: var(--lab-field-placeholder, var(--lab-fg-subtle));
    font-family: var(--lab-font-dems, var(--lab-font));
    font-size: 15px;
    text-align: left;
    cursor: text;
    -webkit-appearance: none;
    appearance: none;
}

/* -------------------------------------------------------------------------- */
/* Status blocks (loading / empty / error)                                    */
/* -------------------------------------------------------------------------- */

.lab-status {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--lab-space-3);
    text-align: center;
    color: var(--lab-fg-muted);
    padding: var(--lab-space-5);
}

.lab-status__title {
    margin: 0;
    color: var(--lab-fg);
    font-size: var(--lab-type-title-size, 18px);
    font-weight: 600;
}

.lab-status__text {
    margin: 0;
    max-width: 280px;
    line-height: 1.45;
}

.lab-status__spinner {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.12);
    border-top-color: var(--lab-accent, #7cf60a);
    animation: lab-btn-spin 0.7s linear infinite;
}

/* -------------------------------------------------------------------------- */
/* Divider / sheet handle                                                     */
/* -------------------------------------------------------------------------- */

.lab-divider {
    border: 0;
    border-top: var(--lab-hairline-w, 1px) solid var(--lab-hairline, rgba(255, 255, 255, 0.07));
    margin: 0;
}

.lab-sheet__handle {
    width: 42px;
    height: 4px;
    margin: var(--lab-space-2) auto var(--lab-space-1);
    border-radius: var(--lab-radius-pill);
    background: rgba(255, 255, 255, 0.22);
}

.lab-sheet__scrim,
.lab-scrim {
    background: var(--lab-scrim, rgba(0, 0, 0, 0.55));
}

/* -------------------------------------------------------------------------- */
/* Status / rank glass pill                                                   */
/* -------------------------------------------------------------------------- */

.lab-pill--status {
    position: relative;
    display: inline-flex;
    align-items: center;
    box-sizing: border-box;
    border-radius: var(--lab-radius-pill);
    border: 1px solid var(--lab-pill-glass-border, var(--lab-border-strong));
    background: var(--lab-pill-glass-bg);
    box-shadow: var(--lab-pill-glass-inset);
    font-weight: 700;
    letter-spacing: 0.04em;
    line-height: 1;
    color: var(--lab-fg-muted);
}

.lab-pill--status__ink {
    position: relative;
    z-index: 1;
}

/* -------------------------------------------------------------------------- */
/* List row                                                                   */
/* -------------------------------------------------------------------------- */

.lab-list-row {
    display: flex;
    align-items: center;
    gap: var(--lab-space-3);
    padding: var(--lab-space-2);
    border-bottom: 1px solid var(--lab-list-divider, var(--lab-hairline));
    min-width: 0;
}

.lab-list-row:last-child {
    border-bottom: 0;
}

.lab-list-row__main {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: var(--lab-space-3);
}

.lab-list-row__meta {
    flex: 0 0 auto;
}

/* -------------------------------------------------------------------------- */
/* Cover / thumb                                                              */
/* -------------------------------------------------------------------------- */

.lab-cover {
    position: relative;
    display: block;
    box-sizing: border-box;
    overflow: hidden;
    aspect-ratio: 1 / 1;
    border-radius: var(--lab-cover-radius, 12px);
    background: var(--lab-cover-bg, #1a1c24);
    box-shadow: var(--lab-cover-inset);
}

.lab-cover img,
.lab-thumb img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.lab-cover__fallback {
    display: flex;
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: center;
    background: var(--lab-cover-fallback);
    color: var(--lab-fg-subtle);
}

.lab-thumb {
    display: block;
    flex: 0 0 auto;
    box-sizing: border-box;
    overflow: hidden;
    width: 60px;
    height: 60px;
    border-radius: 10px;
    background: var(--lab-cover-bg, #1a1c24);
    object-fit: cover;
    box-shadow: var(--lab-cover-inset);
}

.lab-thumb--sm {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.lab-thumb--lg {
    width: 72px;
    height: 72px;
    border-radius: 12px;
}