/* ============================================
   TECHKNOW — 3D interactive hero (3d.html)
   ============================================ */
.hero3d-stage {
    display: none;
}

.has-3d .hero3d-track {
    position: relative;
    height: 320vh;
}

.has-3d .hero3d-track:has(.hero-hidden) {
    display: none;
}

.has-3d .hero3d-track > .hero {
    position: sticky;
    top: 0;
    height: 100vh;
    min-height: 100vh;
}

.has-3d .hero-bg {
    display: none;
}

.has-3d .hero3d-stage {
    display: block;
    position: absolute;
    inset: 0;
    z-index: 0;
    background: #0d1014;
}

.hero3d-stage canvas {
    display: block;
    opacity: calc(1 - var(--hero3d-photo, 0));
    width: 100%;
    height: 100%;
    cursor: grab;
    touch-action: pan-y;
}

.hero3d-stage.is-dragging canvas {
    cursor: grabbing;
}

/* The finished building dissolves into the actual render at the end of the scroll */
.hero3d-photo {
    position: absolute;
    top: 72px;
    right: 0;
    height: calc(100% - 72px);
    aspect-ratio: 1008 / 1070;
    max-width: 70%;
    background: url('assets/elevation001-render.jpg') right center / cover no-repeat;
    opacity: var(--hero3d-photo, 0);
    pointer-events: none;
    -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 30%), linear-gradient(0deg, transparent 0%, #000 6%);
    -webkit-mask-composite: source-in;
    mask-image: linear-gradient(90deg, transparent 0%, #000 30%), linear-gradient(0deg, transparent 0%, #000 6%);
    mask-composite: intersect;
}

.hero3d-shade {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(90deg, rgba(8, 10, 13, 0.82) 0%, rgba(8, 10, 13, 0.35) 42%, rgba(8, 10, 13, 0) 65%),
        linear-gradient(180deg, rgba(8, 10, 13, 0) 75%, rgba(8, 10, 13, 0.6) 100%);
}

/* The headline steps back as the building goes up */
.has-3d .hero-content {
    transform: none !important;
    opacity: calc(1 - var(--hero3d-fade, 0)) !important;
    pointer-events: auto;
    max-width: 720px;
    margin-right: auto;
}

.has-3d .hero .scroll-indicator {
    color: rgba(244, 246, 248, 0.7);
    z-index: 2;
}

.hero3d-progress {
    position: absolute;
    right: calc(6% + 80px);
    bottom: 40px;
    z-index: 2;
    display: grid;
    gap: 6px;
    min-width: 200px;
    color: #F4F6F8;
    font-family: var(--font-body);
    text-align: right;
}

.hero3d-progress-label {
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(244, 246, 248, 0.6);
}

.hero3d-progress-stage {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--c-accent);
}

.hero3d-progress-track {
    display: block;
    height: 3px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
    overflow: hidden;
}

.hero3d-progress-track span {
    display: block;
    height: 100%;
    background: var(--c-accent);
    transform-origin: left;
    transform: scaleX(0);
}

.hero3d-hint {
    position: absolute;
    right: 6%;
    top: 110px;
    z-index: 2;
    padding: 6px 14px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: rgba(244, 246, 248, 0.75);
    background: rgba(13, 16, 20, 0.4);
    backdrop-filter: blur(6px);
    pointer-events: none;
}

/* The hero is pinned to one screen, so its text scales with the screen height
   and stays clear of the header above and the progress bar below */
@media (min-width: 769px) {
    .has-3d .hero3d-track > .hero {
        padding: 100px 24px 84px;
    }

    .has-3d .hero-content {
        padding-top: 0;
    }

    .has-3d .hero-tag-inline {
        margin-bottom: min(16px, 1.8vh);
    }

    .has-3d .hero-title {
        font-size: clamp(2.2rem, min(6.2vw, 9.5vh), 6.2rem);
        line-height: 1.05;
        margin-bottom: min(16px, 2vh);
    }

    .has-3d .hero-desc {
        font-size: clamp(0.9rem, min(1.4vw, 2.2vh), 1.15rem);
        line-height: 1.6;
        max-width: 600px;
        margin-bottom: min(32px, 3.5vh);
    }

    .has-3d .hero-actions {
        margin-bottom: 0;
    }

    .has-3d .hero-stats-new {
        margin: min(30px, 3vh) 0 0;
    }

    .has-3d .hero-stats-new .stat-group {
        padding: min(20px, 1.8vh) 32px;
        min-width: 170px;
    }

    .has-3d .hero-stats-new .stat-number,
    .has-3d .hero-stats-new .stat-suffix {
        font-size: clamp(1.8rem, 4.2vh, 2.8rem);
    }

    .has-3d .hero-stats-new .stat-divider {
        height: min(80px, 8vh);
    }
}

/* Short laptop screens: drop the stats box so the headline, copy and buttons fit */
@media (min-width: 769px) and (max-height: 700px) {
    .has-3d .hero-stats-new {
        display: none;
    }
}

/* Narrow desktops: the hint pill would sit under the menu */
@media (max-width: 1200px) {
    .hero3d-hint {
        display: none;
    }
}

@media (max-width: 768px) {
    .has-3d .hero3d-track {
        height: 260vh;
    }

    .has-3d .hero {
        align-items: flex-start;
    }

    .hero3d-shade {
        background:
            linear-gradient(180deg, rgba(8, 10, 13, 0.85) 0%, rgba(8, 10, 13, 0.4) 45%, rgba(8, 10, 13, 0) 65%),
            linear-gradient(180deg, rgba(8, 10, 13, 0) 80%, rgba(8, 10, 13, 0.6) 100%);
    }

    /* On phones the finished render fills the screen below the header */
    .hero3d-photo {
        top: 0;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 100%;
        aspect-ratio: auto;
        max-width: none;
        background-position: center 70%;
        background-size: cover;
        -webkit-mask-image: linear-gradient(180deg, transparent 6%, #000 22%);
        mask-image: linear-gradient(180deg, transparent 6%, #000 22%);
    }

    .hero3d-progress {
        left: 16px;
        right: 96px;
        bottom: 24px;
        min-width: 0;
        text-align: left;
        /* On phones the headline covers the screen, so the progress shows only once it
           fades, and it clears away again when the render takes over */
        opacity: calc((var(--hero3d-fade, 0) - 0.75) / 0.2 * (1 - var(--hero3d-photo, 0)));
    }

    .hero3d-hint {
        display: none;
    }

    .has-3d .hero .scroll-indicator {
        display: none;
    }
}

/* Keep the header dark while the 3D scene is behind it */
body.in-hero3d #main-header.scrolled {
    background: rgba(10, 12, 15, 0.55);
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

body.in-hero3d #main-header.scrolled .nav-link,
body.in-hero3d #main-header.scrolled .logo-text-sub {
    color: #F4F6F8;
}

/* Once the headline has faded out it stops catching taps meant for the scene */
body.has-3d.hero3d-faded .hero-content {
    pointer-events: none;
}