/* /assets/css/pages/home.css — FINAL (PNG, container-scaled, single-line desktop)
   Layers: home (all rules) + overrides (desktop single-line and z-index assertions)
*/

@layer home {

    /* Tokens */
    :root {
        --background: #0b0b0be1;
        --foreground: #fafafa;
        --text: #ffffff;
        --muted: #aaaaaa;
        --primary: #ff004c;

        --nav-color: var(--foreground);
        --nav-color-hover: var(--primary);
        --nav-opacity: 0.85;
        --nav-opacity-hover: 1;

        --edge-inset: clamp(16px, 4vw, 60px);
        --frame-gap: clamp(24px, 8vw, 160px);
        --overlay-pad: clamp(12px, 3vw, 48px);
        --nav-vertical-gap: clamp(20px, 8vh, 120px);
        --mobile-nav-gap: 24px;

        --image-transition: 0.6s cubic-bezier(.25, .46, .45, .94);
        --typewriter-transition: 0.5s cubic-bezier(.25, .46, .45, .94);

        --font-body: 'Josefin Sans', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
        --font-display: 'Bitcount Grid Double Ink', 'Playfair Display', system-ui, sans-serif;
        --font-header: 'Avenir Next', system-ui, sans-serif;
        /* Cursors */


    }

    /* Base */
    html,
    body {
        width: 100%;
        height: 100%;
        overflow: hidden !important;
        background: var(--background);
        color: var(--foreground);
        font-family: var(--font-body);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        cursor: var(--cursor-default);
        
        
    }

    .page-root {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        background: var(--background);
        overflow: hidden;
        touch-action: pan-y pinch-zoom;
    }

    /* Links */
    .nav-link {
        text-decoration: none;
        color: var(--nav-color);
        opacity: var(--nav-opacity);
        transition: all .3s ease;
        pointer-events: auto;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: var(--cursor-pointer);
    }

    .nav-link:hover,
    .nav-link:focus-visible {
        color: var(--nav-color-hover);
        opacity: var(--nav-opacity-hover);
        transform: translateY(-2px);
        cursor: var(--cursor-pointer);
    }

    .nav-text {
        font-family: var(--font-body);
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: .2em;
        font-size: clamp(.75rem, 2vw, 1.1rem);
        line-height: 1.2;
        text-align: center;
        cursor: var(--cursor-pointer);
    }

    /* Nav rails */
    .navigation-links-full {
        position: fixed;
        inset: 0;
        z-index: 20;
        pointer-events: visible;
        cursor: var(--cursor-default);
    }

    .nav-vertical {
        position: fixed;
        top: 50%;
        transform: translateY(-50%);
        display: flex;
        flex-direction: column;
        gap: var(--nav-vertical-gap);
        pointer-events: auto;
    }

    .nav-vertical.nav-left {
        left: var(--edge-inset);
    }

    .nav-vertical.nav-right {
        right: var(--edge-inset);
    }

    .nav-vertical .nav-text {
        writing-mode: vertical-rl;
        transform: rotate(180deg);
        padding: 8px 4px;
        font-size: clamp(.9rem, 2vw, 1.1rem);
        font-weight: 700;
    }

    .nav-horizontal.nav-bottom {
        position: fixed;
        left: 50%;
        bottom: var(--edge-inset);
        transform: translateX(-50%);
        display: flex;
        align-items: center;
        gap: clamp(1.5em, 3vw, 2.5em);
        pointer-events: auto;
        z-index: 20;
        font-size: clamp(.9rem, 2vw, 1.1rem);
        font-weight: 700;
    }

    .nav-separator {
        color: var(--muted);
        opacity: .6;
    }

    /* Mobile nav (hidden by default here) */
    .mobile-nav-toggle {
        display: none;
    }

    .mobile-nav-vertical {
        display: none;
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: 90;
        pointer-events: none;
        flex-direction: column;
        gap: var(--mobile-nav-gap);
        width: min(90%, 300px);
    }

    .mobile-nav-vertical.active {
        display: flex;
        pointer-events: auto;
    }

    .mobile-nav-vertical .nav-link {
        background: rgba(17, 17, 17, .9);
        backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 255, 255, .1);
        padding: 16px 24px;
        border-radius: 8px;
        transition: all .3s ease;
    }

    .mobile-nav-vertical .nav-link:hover,
    .mobile-nav-vertical .nav-link:focus-visible {
        transform: translateY(-2px);
        border-color: var(--primary);
        box-shadow: 0 4px 20px rgba(255, 0, 76, .3);
    }

    .mobile-nav-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, .8);
        backdrop-filter: blur(5px);
        z-index: 80;
        opacity: 0;
        transition: opacity .3s ease;
    }

    .mobile-nav-overlay.active {
        display: block;
        opacity: 1;
    }

    /* Hero image container */
    .image-container-centered {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: 10;
        width: min(calc(100vw - (var(--frame-gap) * 2)), 1320px);
        height: min(calc(100vh - (var(--frame-gap) * 2)), 740px);
        aspect-ratio: 16 / 9;
        background-color: var(--background);
        overflow: hidden;
        border-radius: 2px;
    }

    .image-stage {
        position: relative;
        width: 100%;
        height: 100%;
        z-index: 1;
    }

    .image-stage::after {
        content: "";
        position: absolute;
        inset: 0;
        background-color: rgba(0, 0, 0, .55);
        z-index: 2;
    }

    .image-layer {
        position: absolute;
        inset: 0;
        background-size: auto 100%;
        /* change to cover if you want no letterbox */
        background-position: center;
        background-repeat: no-repeat;
        opacity: 0;
        transition: opacity var(--image-transition);
        z-index: 1;
    }

    .image-layer.active {
        opacity: 1;
    }

    /* PNG sources */
    .image-default {
        background-image: url('/assets/images/home/default.png');
    }

    .image-ai {
        background-image: url('/assets/images/home/ai.png');
    }

    .image-data {
        background-image: url('/assets/images/home/data.png');
    }

    .image-embedded {
        background-image: url('/assets/images/home/embedded.png');
    }

    .image-blockchain {
        background-image: url('/assets/images/home/blockchain.png');
    }

    .image-about {
        background-image: url('/assets/images/home/about.png');
    }

    .image-contact {
        background-image: url('/assets/images/home/contact.png');
    }

    .image-tdi {
        background-image: url('/assets/images/home/tdi.png');
    }

    /* Typewriter overlay */
    .typewriter-overlay-centered {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: 30;
        pointer-events: none;
        width: min(calc(100vw - (var(--frame-gap) * 2)), 1320px);
        height: min(calc(100vh - (var(--frame-gap) * 2)), 740px);
        aspect-ratio: 16 / 9;
        container-type: inline-size;
        /* enables cqi scaling */
    }

    .typewriter-container {
        position: relative;
        width: 100%;
        height: 100%;
    }

    .typewriter-line-split {
        position: absolute;
        inset: 0;
        font-family: var(--font-display);
        font-weight: 800;
        text-transform: uppercase;
        letter-spacing: .05em;
        font-size: clamp(22px, 8cqi, 88px);
        /* fluid by container */
        line-height: .9;
        text-shadow: 0 0 8px rgba(0, 0, 0, .8);
        opacity: 0;
        transition: opacity var(--typewriter-transition);
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding-inline: clamp(8px, 2cqi, 24px);
    }

    .typewriter-line-split.active {
        opacity: 1;
    }

    .typewriter-part-large {
        white-space: nowrap;
        /* enforced for desktop in overrides; mobile relaxes */
        opacity: 0;
        transition: transform var(--typewriter-transition), opacity var(--typewriter-transition);
        text-align: center;
        width: 100%;
    }

    /* Desktop split placement */
    .typewriter-line-split.active .typewriter-part-large:first-child {
        position: absolute;
        left: var(--overlay-pad);
        top: 50%;
        transform: translateY(-50%);
        opacity: 1;
        text-align: left;
    }

    .typewriter-line-split.active .typewriter-part-large:last-child {
        position: absolute;
        right: var(--overlay-pad);
        top: calc(50% + 5%);
        transform: translateY(-50%);
        opacity: 1;
        text-align: right;
    }

    /* Hide empty first span in TDI */
    .typewriter-line-split[data-section="tdi"].active .typewriter-part-large:first-child:empty {
        display: none;
    }

    /* Page index */
    .page-index {
        position: fixed;
        right: var(--edge-inset);
        bottom: var(--edge-inset);
        color: var(--muted);
        font-size: clamp(.7rem, 2vw, .85rem);
        letter-spacing: .1em;
        text-transform: uppercase;
        z-index: 40;
    }

    /* Responsiveness */
    @media (max-width: 1024px) {
        :root {
            --frame-gap: clamp(32px, 6vw, 80px);
            --nav-vertical-gap: clamp(40px, 10vh, 80px);
        }

        .nav-vertical .nav-text,
        .nav-horizontal.nav-bottom {
            font-size: clamp(.8rem, 1.5vw, 1rem);
        }
    }

    @media (max-width: 768px) {

        .nav-vertical,
        .nav-horizontal.nav-bottom {
            display: none;
        }

        .mobile-nav-toggle {
            display: block;
        }

        .mobile-nav-vertical {
            display: flex;
        }

        .image-container-centered,
        .typewriter-overlay-centered {
            width: calc(100vw - (var(--frame-gap) * 1.5));
            height: calc(100vh - (var(--frame-gap) * 2.5));
            max-width: none;
            max-height: none;
        }

        /* Mobile: allow wrapping and stacked layout */
        .typewriter-line-split {
            flex-direction: column;
            justify-content: center;
            gap: 6px;
            font-size: clamp(18px, 12vw, 44px);
        }

        .typewriter-line-split.active .typewriter-part-large {
            position: static;
            transform: none;
            text-align: center;
            opacity: 1;
            white-space: normal;
            max-width: 96%;
            word-break: break-word;
            overflow-wrap: anywhere;
            hyphens: auto;
            letter-spacing: .02em;
        }

        .page-index {
            display: none;
        }
    }

    @media (max-width: 480px) {
        :root {
            --edge-inset: 12px;
            --frame-gap: 20px;
            --mobile-nav-gap: 16px;
        }

        .mobile-nav-vertical .nav-link {
            padding: 14px 20px;
        }
    }

    @media (min-width: 1600px) {
        :root {
            --edge-inset: 80px;
            --frame-gap: clamp(120px, 12vw, 220px);
        }

        .image-container-centered,
        .typewriter-overlay-centered {
            max-width: 1600px;
            max-height: 880px;
        }
    }

    @media screen and (orientation: portrait) and (max-width: 768px) {

        .image-container-centered,
        .typewriter-overlay-centered {
            width: 90vw;
            height: 50vh;
            aspect-ratio: 16/9;
        }
    }

    @media (-webkit-min-device-pixel-ratio: 2),
    (min-resolution: 192dpi) {
        .image-layer {
            image-rendering: -webkit-optimize-contrast;
            image-rendering: crisp-edges;
        }
    }

    @media (prefers-reduced-motion: reduce) {
        :root {
            --image-transition: .1s ease;
            --typewriter-transition: .1s ease;
        }

        .nav-link:hover,
        .nav-link:focus-visible {
            transform: none;
        }
    }

    .nav-link:focus-visible,
    .mobile-nav-toggle:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 4px;
    }
}

/* Overrides: desktop single-line text and z-index safety below header/footer */
@layer overrides {

    /* Keep overlay content below fixed header and footer defined in main.css */
    body[data-page="home"] .navigation-links-full,
    body[data-page="home"] .image-container-centered,
    body[data-page="home"] .typewriter-overlay-centered {
        z-index: 1000;
    }

    /* Desktop and tablets: force single-line halves */
    @media (min-width: 769px) {
        .typewriter-line-split {
            font-size: clamp(22px, 7cqi, 72px);
            /* tighter cap so it fits in one row */
            line-height: .9;
        }

        .typewriter-part-large {
            white-space: nowrap;
            overflow: hidden;
            text-overflow: clip;
            /* switch to ellipsis if you prefer */
            max-width: none;
            word-break: normal;
            overflow-wrap: normal;
            hyphens: manual;
            letter-spacing: .03em;
        }

        .typewriter-line-split.active .typewriter-part-large:first-child {
            left: max(var(--overlay-pad), 24px);
            right: auto;
        }

        .typewriter-line-split.active .typewriter-part-large:last-child {
            right: max(var(--overlay-pad), 24px);
            left: auto;
            letter-spacing: .02em;
        }
    }
}