/**
 * STINA Quality Lab — Future production technology section
 */

.quality-lab {
    position: relative;
    overflow: hidden;
    background: transparent;
}

.quality-lab__sky {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 55% at 50% 0%, rgba(27, 77, 46, 0.07) 0%, transparent 55%),
        radial-gradient(ellipse 40% 35% at 85% 70%, rgba(197, 160, 115, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, var(--home-bg) 0%, var(--home-bg-alt) 100%);
    pointer-events: none;
}

.quality-lab__circuit {
    position: absolute;
    inset: 0;
    opacity: 0.12;
    background-image:
        linear-gradient(90deg, transparent 49%, rgba(197, 160, 115, 0.4) 50%, transparent 51%),
        linear-gradient(0deg, transparent 49%, rgba(27, 77, 46, 0.35) 50%, transparent 51%);
    background-size: 120px 120px;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 45%, black, transparent);
    -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 45%, black, transparent);
    pointer-events: none;
}

.quality-lab__grid {
    position: absolute;
    bottom: 0;
    left: -15%;
    right: -15%;
    height: 45%;
    background-image:
        linear-gradient(rgba(27, 77, 46, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(27, 77, 46, 0.06) 1px, transparent 1px);
    background-size: 52px 52px;
    transform: perspective(480px) rotateX(76deg);
    transform-origin: center top;
    mask-image: linear-gradient(to top, black 10%, transparent 85%);
    -webkit-mask-image: linear-gradient(to top, black 10%, transparent 85%);
    animation: quality-grid-flow 24s linear infinite;
    pointer-events: none;
}

@keyframes quality-grid-flow {
    from { background-position: 0 0; }
    to { background-position: 0 52px; }
}

/* Header */
.quality-lab__header {
    position: relative;
    z-index: 3;
    margin-bottom: 2.5rem;
}

.quality-lab__label {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--stina-gold);
    margin-bottom: 0.85rem;
}

.quality-lab__label-pulse {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--stina-gold);
    box-shadow: 0 0 10px var(--stina-gold);
    animation: quality-pulse 2s ease-in-out infinite;
}

@keyframes quality-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.55; transform: scale(0.85); }
}

.quality-lab__title {
    font-size: clamp(1.9rem, 3.6vw, 2.75rem);
    color: var(--stina-green-dark);
    margin-bottom: 0.5rem;
}

.quality-lab__subtitle {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.05rem;
    color: var(--stina-gold-dark);
    margin-bottom: 1rem;
}

.quality-lab__lead {
    max-width: 680px;
    color: var(--stina-gray);
    font-size: 1.02rem;
    line-height: 1.75;
    margin-bottom: 0;
}

/* 3D Stage — symmetric grid layout (stable hover) */
.quality-lab__stage {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 320px) minmax(0, 1fr);
    grid-template-rows: auto auto;
    gap: 1.25rem 1.75rem;
    align-items: center;
    justify-items: center;
    max-width: 1000px;
    margin: 0 auto 2rem;
    min-height: 480px;
}

/* Central 3D product chamber */
.quality-lab__chamber {
    position: relative;
    grid-column: 2;
    grid-row: 1 / -1;
    align-self: center;
    width: 100%;
    max-width: 320px;
    z-index: 2;
}

.quality-lab__stage:has(.quality-lab__node:hover) .quality-lab__chamber-ring,
.quality-lab__stage:has(.quality-lab__node:focus-visible) .quality-lab__chamber-ring {
    opacity: 0.35;
}

.quality-lab__chamber-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    border: 1px solid rgba(197, 160, 115, 0.25);
    border-radius: 50%;
    transform: translate(-50%, -50%) rotateX(72deg);
    pointer-events: none;
    transition: opacity 0.35s ease;
}

.quality-lab__chamber-ring--1 {
    width: 115%;
    height: 115%;
    animation: chamber-ring 8s linear infinite;
}

.quality-lab__chamber-ring--2 {
    width: 135%;
    height: 135%;
    border-color: rgba(27, 77, 46, 0.35);
    animation: chamber-ring 12s linear infinite reverse;
}

.quality-lab__chamber-ring--3 {
    width: 155%;
    height: 155%;
    border-style: dashed;
    opacity: 0.5;
    animation: chamber-ring 16s linear infinite;
}

@keyframes chamber-ring {
    from { transform: translate(-50%, -50%) rotateX(72deg) rotateZ(0deg); }
    to { transform: translate(-50%, -50%) rotateX(72deg) rotateZ(360deg); }
}

/* 3D product pod (KeyShotXR) */
.quality-lab__pod {
    position: relative;
    z-index: 3;
    width: 100%;
    padding: 0.75rem;
}

.quality-lab__corner {
    position: absolute;
    width: 24px;
    height: 24px;
    border-color: rgba(197, 160, 115, 0.55);
    border-style: solid;
    pointer-events: none;
    z-index: 5;
}

.quality-lab__corner--tl { top: 0; left: 0; border-width: 2px 0 0 2px; }
.quality-lab__corner--tr { top: 0; right: 0; border-width: 2px 2px 0 0; }
.quality-lab__corner--bl { bottom: 0; left: 0; border-width: 0 0 2px 2px; }
.quality-lab__corner--br { bottom: 0; right: 0; border-width: 0 2px 2px 0; }

.quality-lab__pod-glow {
    position: absolute;
    inset: -10%;
    background: radial-gradient(circle, rgba(27, 77, 46, 0.1) 0%, rgba(197, 160, 115, 0.08) 45%, transparent 70%);
    filter: blur(24px);
    pointer-events: none;
    animation: quality-glow-breathe 5s ease-in-out infinite;
}

@keyframes quality-glow-breathe {
    0%, 100% { opacity: 0.65; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

.quality-lab__viewport {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    border-radius: calc(var(--stina-radius-lg) - 4px);
    overflow: hidden;
    background: radial-gradient(circle at 50% 58%, rgba(255,255,255,0.98) 0%, rgba(235,230,222,0.96) 100%);
    border: 2px solid rgba(197, 160, 115, 0.4);
    box-shadow:
        0 16px 40px rgba(13, 18, 16, 0.1),
        0 0 0 1px rgba(255, 255, 255, 0.6) inset;
}

.quality-lab__iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
    background: transparent;
    cursor: grab;
}

.quality-lab__iframe:active {
    cursor: grabbing;
}

.quality-lab__scan {
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(197, 160, 115, 0.75), rgba(255,255,255,0.5), rgba(197, 160, 115, 0.75), transparent);
    box-shadow: 0 0 12px rgba(197, 160, 115, 0.4);
    animation: quality-scan 4s ease-in-out infinite;
    pointer-events: none;
    z-index: 2;
}

@keyframes quality-scan {
    0%, 100% { top: 0; opacity: 0; }
    8% { opacity: 1; }
    92% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

.quality-lab__shimmer {
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, transparent 42%, rgba(255,255,255,0.25) 48%, rgba(255,255,255,0.4) 50%, rgba(255,255,255,0.25) 52%, transparent 58%);
    pointer-events: none;
    animation: quality-shimmer 5s ease-in-out infinite;
    z-index: 3;
}

@keyframes quality-shimmer {
    0%, 100% { transform: translateX(-120%); opacity: 0; }
    45% { opacity: 1; }
    55% { transform: translateX(120%); opacity: 0; }
}

.quality-lab__pod-hud {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.55rem;
    margin-top: 0.75rem;
}

.quality-lab__live-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.7rem;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--home-stroke);
    border-radius: 6px;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--stina-green);
    box-shadow: 0 6px 16px rgba(13, 18, 16, 0.05);
}

.quality-lab__live-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #4ade80;
    box-shadow: 0 0 8px #4ade80;
    animation: quality-pulse 1.5s ease-in-out infinite;
}

@keyframes quality-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.55; transform: scale(0.85); }
}

.quality-lab__pod-hint {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.85rem;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid var(--home-stroke);
    border-radius: 50px;
    color: var(--stina-gray);
    font-size: 0.75rem;
    font-weight: 500;
    box-shadow: 0 6px 16px rgba(13, 18, 16, 0.04);
}

.quality-lab__pod-hint-icon {
    color: var(--stina-green);
    display: flex;
    animation: hero-spin 10s linear infinite;
}

@keyframes hero-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Tech nodes — corner grid positions */
.quality-lab__nodes {
    display: contents;
}

.quality-lab__node {
    position: relative;
    width: min(220px, 100%);
    max-width: 240px;
    pointer-events: auto;
    opacity: 0;
    animation: node-in 0.6s ease forwards;
    animation-delay: calc(var(--node-i) * 0.1s);
}

.quality-lab__node--tl {
    grid-column: 1;
    grid-row: 1;
    justify-self: end;
}

.quality-lab__node--tr {
    grid-column: 3;
    grid-row: 1;
    justify-self: start;
}

.quality-lab__node--bl {
    grid-column: 1;
    grid-row: 2;
    justify-self: end;
}

.quality-lab__node--br {
    grid-column: 3;
    grid-row: 2;
    justify-self: start;
}

@keyframes node-in {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: none; }
}

.quality-lab__node-connector {
    display: none;
}

.quality-lab__node-card {
    position: relative;
    padding: 1.15rem 1.25rem;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid var(--home-stroke);
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(13, 18, 16, 0.06);
    transition:
        transform 0.25s ease,
        border-color 0.25s ease,
        box-shadow 0.25s ease,
        background 0.25s ease;
}

.quality-lab__node:hover,
.quality-lab__node:focus-visible {
    z-index: 10;
}

.quality-lab__node:hover .quality-lab__node-card,
.quality-lab__node:focus-visible .quality-lab__node-card {
    transform: translateY(-5px);
    background: var(--home-surface);
    border-color: rgba(197, 160, 115, 0.45);
    box-shadow: 0 20px 40px rgba(13, 18, 16, 0.1);
}

.quality-lab__node:focus-visible {
    outline: none;
}

.quality-lab__node:focus-visible .quality-lab__node-card {
    outline: 2px solid var(--stina-gold);
    outline-offset: 3px;
}

.quality-lab__node-index {
    position: absolute;
    top: 0.75rem;
    right: 0.85rem;
    font-size: 0.7rem;
    font-weight: 800;
    color: rgba(197, 160, 115, 0.45);
    letter-spacing: 0.05em;
}

.quality-lab__node-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
    color: var(--stina-gold);
    background: rgba(197, 160, 115, 0.1);
    border: 1px solid rgba(197, 160, 115, 0.25);
    border-radius: 10px;
}

.quality-lab__node-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--stina-green-dark);
    margin-bottom: 0.4rem;
    line-height: 1.3;
}

.quality-lab__node-text {
    font-size: 0.82rem;
    color: var(--stina-gray);
    line-height: 1.55;
    margin-bottom: 0.65rem;
}

.quality-lab__node-tag {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--stina-gold);
    padding: 0.25rem 0.55rem;
    background: rgba(27, 77, 46, 0.45);
    border: 1px solid rgba(27, 77, 46, 0.6);
    border-radius: 4px;
}

/* HUD stats */
.quality-lab__hud {
    position: relative;
    z-index: 3;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem 2rem;
    padding: 1.5rem 1rem;
    margin-bottom: 1rem;
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid var(--home-stroke);
    border-radius: 16px;
    box-shadow: 0 12px 32px rgba(13, 18, 16, 0.05);
}

.quality-lab__stat {
    text-align: center;
    min-width: 120px;
}

.quality-lab__stat-value {
    display: block;
    font-size: clamp(1.6rem, 3vw, 2.1rem);
    font-weight: 800;
    color: var(--stina-green);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.quality-lab__stat-label {
    display: block;
    margin-top: 0.35rem;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--stina-gray);
}

.quality-lab__hint {
    position: relative;
    z-index: 2;
    font-size: 0.82rem;
    color: var(--stina-gray);
    margin: 0;
}

/* Responsive */
@media (max-width: 991.98px) {
    .quality-lab__stage {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 2rem;
        min-height: auto;
        padding: 1rem 0;
        max-width: none;
    }

    .quality-lab__chamber {
        grid-column: auto;
        grid-row: auto;
        width: min(300px, 88vw);
        max-width: 300px;
        margin: 0 auto;
        order: -1;
    }

    .quality-lab__stage:has(.quality-lab__node:hover) .quality-lab__chamber-ring,
    .quality-lab__stage:has(.quality-lab__node:focus-visible) .quality-lab__chamber-ring {
        opacity: 1;
    }

    .quality-lab__chamber-ring {
        display: none;
    }

    .quality-lab__nodes {
        display: grid;
        grid-template-columns: 1fr;
        gap: 1rem;
        width: 100%;
        max-width: 420px;
    }

    .quality-lab__node,
    .quality-lab__node--tl,
    .quality-lab__node--tr,
    .quality-lab__node--bl,
    .quality-lab__node--br {
        grid-column: auto;
        grid-row: auto;
        justify-self: stretch;
        width: 100%;
        max-width: none;
        animation: none;
        opacity: 1;
    }

    .quality-lab__node:hover .quality-lab__node-card,
    .quality-lab__node:focus-visible .quality-lab__node-card {
        transform: translateY(-3px);
    }
}

@media (min-width: 992px) and (max-width: 1199.98px) {
    .quality-lab__stage {
        gap: 1rem 1.25rem;
        min-height: 420px;
    }

    .quality-lab__node {
        width: min(200px, 100%);
    }

    .quality-lab__chamber {
        max-width: 280px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .quality-lab__grid,
    .quality-lab__chamber-ring,
    .quality-lab__scan,
    .quality-lab__shimmer,
    .quality-lab__pod-glow,
    .quality-lab__pod-hint-icon,
    .quality-lab__label-pulse,
    .quality-lab__live-dot,
    .quality-lab__node {
        animation: none;
    }

    .quality-lab__node {
        opacity: 1;
    }
}