:root {
    --view-height: 85svh;
    --grain-height: 100svh;
    --actual-vh: 1vh; /* Will be set by JS for mobile browsers */
    --viewport-offset: 0px; /* Will be set by JS if URL bar is at top */
}

/* Loader styles */
#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: black;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.5s ease;
}

#loader.fade-out {
    opacity: 0;
    pointer-events: none;
}

/* Fallback for browsers that don't support svh */
@supports not (height: 100svh) {
    :root {
        --view-height: 85vh;
        --grain-height: 100vh;
        --base-size: calc(100vh / 72);
    }

    /* For mobile browsers without svh support, use JS calculated height */
    @media (max-width: 768px) {
        :root {
            --view-height: calc(var(--actual-vh, 1vh) * 85);
            --grain-height: calc(var(--actual-vh, 1vh) * 100);
            --base-size: calc((var(--actual-vh, 1vh) * 100) / 72);
        }
    }
}

/* base / background */

#content, #bg-video, #grain {
    position: absolute;
    width: 100vw;
    height: var(--view-height);
    left: 50vw;
    top: 50svh;
    transform: translate(-50%, -50%);
    opacity: 0;
}

/* Fallback for browsers that don't support svh */
@supports not (height: 100svh) {
    #content, #bg-video, #grain {
        top: 50vh;
    }

    /* Use visual viewport positioning on mobile */
    @media (max-width: 768px) {
        #content, #bg-video, #grain {
            top: calc(var(--actual-vh, 1vh) * 50);
        }
    }
}

#content {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}

#grain { height: var(--grain-height) }

#bg-video {
    background-color: rgb(26, 28, 34);
    overflow: hidden;
}
#bg-video video, #fallback-img {
    opacity: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
}

/* Reel clips cross-fade into each other */
#bg-video video {
    transition: opacity 1.2s ease;
}
#bg-video video.is-active,
#fallback-img {
    opacity: 0.5;
}

#fallback-img {
    display: none;
    padding-bottom: 0;
}

#fallback-img.active {
    display: block;
}

/* icons */

#icons {
    padding: calc(var(--base-size) * 1);
    display: flex;
    gap: calc(var(--base-size) * 0.93);
    justify-content: center;
    align-items: center;
}

.icon-circle {
    width: calc(var(--base-size) * 1.73);
    height: calc(var(--base-size) * 1.73);
    display: block;
    text-decoration: none;
    opacity: 0.35;
    transition: transform 0.2s ease,
                opacity 0.2s ease;
}

.icon-circle:hover {
    transform: scale(1.1);
    opacity: 1;
}

.icon-circle img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
    padding-bottom: 0;
}

/* call to action */
#CTA {
    padding: calc(var(--base-size) * 0.8) calc(var(--base-size) * 1.07);
    font-size: calc(var(--base-size) * 0.93);
    text-align: center;
}

button {
    background: var(--accent);
    border-radius: calc(var(--base-size) * 0.53);
    padding: calc(var(--base-size) * 0.67) calc(var(--base-size) * 0.93);
    font-weight: 700;
    font-size: calc(var(--base-size) * 0.87);
    border: none;
    cursor: pointer;
    transition: transform 0.2s ease;
    color: rgb(0, 70, 70);
}

button:hover {
    transform: scale(1.05);
}

b {
    font-weight: 600;
    color: var(--accent);
}

/* center */

#center {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: calc(var(--base-size) * 32);
    max-width: calc(100vw - 40px);
    opacity: 0;
}

#center img {
    width: 100%;
    padding-bottom: calc(var(--base-size) * 1.6);
    transition: all 0.5s ease;
    cursor: pointer;
}

#center img:hover {
    transform: scale(1.03);
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.1));
}

#navbar {
    display: flex;
    gap: calc(var(--base-size) * 4);
    justify-content: center;
    align-items: baseline;
    font-size: calc(var(--base-size) * 1.2);
    font-weight: 500;
}

#navbar > div {
    cursor: pointer;
    position: relative;
    padding: calc(var(--base-size) * 0.67) calc(var(--base-size) * 1.33);
    border: calc(var(--base-size) * 0.2) solid transparent;
    border-radius: 0px;
    transition: all 0.3s ease;
    user-select: none;
}

.nav-side {
    opacity: 0.8;
}

.nav-center {
    font-size: 1.3em;
    font-weight: 600;
}

#navbar > div:hover {
    border-color: white;
    background-color: rgba(0, 0, 0, 0.1);
}

.nav-side:hover {
    opacity: 1;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    body {
        font-size: calc(var(--base-size) * 1.2);
    }

    #icons {
        padding: calc(var(--base-size) * 2);
        gap: calc(var(--base-size) * 1.5);
    }

    .icon-circle {
        width: calc(var(--base-size) * 2.5);
        height: calc(var(--base-size) * 2.5);
    }

    #CTA {
        padding: calc(var(--base-size) * 1) calc(var(--base-size) * 1.5);
        font-size: calc(var(--base-size) * 1.1);
        line-height: 1.5;
    }

    button {
        padding: calc(var(--base-size) * 0.8) calc(var(--base-size) * 1.2);
        font-size: calc(var(--base-size) * 1);
        border-radius: calc(var(--base-size) * 0.5);
    }

    #center {
        width: calc(var(--base-size) * 28);
        max-width: calc(100vw - 40px);
    }

    #center img {
        padding-bottom: calc(var(--base-size) * 2);
    }

    #navbar {
        gap: calc(var(--base-size) * 2.5);
        font-size: calc(var(--base-size) * 1.1);
    }
}
/* Corners of the video frame. Top corners line up with the icon row, bottom ones with the CTA. */
.corner {
    position: absolute;
    display: flex;
    align-items: center;
    min-height: calc(var(--base-size) * 1.73);
}
.corner-tl, .corner-tr { top: calc(var(--base-size) * 1); }
.corner-bl, .corner-br { bottom: calc(var(--base-size) * 1.6); }
.corner-tl, .corner-bl { left: calc(var(--base-size) * 2); }
.corner-tr, .corner-br { right: calc(var(--base-size) * 2); }
.corner-tr { right: calc(var(--base-size) * 2 - 8px); } /* the sound button has its own padding */
.corner-tl { align-items: flex-start; }

/* Now showing: project name with a short line tracking the clip */
#reel-label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    color: #fff;
    text-decoration: none;
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}
#reel-label:hover { opacity: 1; }
#reel-label[hidden] { display: none; }

.reel-kicker {
    font-size: 10px;
    font-weight: 500;
    opacity: 0.7;
}

.reel-title {
    font-weight: 700;
    transition: opacity 0.4s ease, transform 0.5s var(--ease-out);
}
.reel-title.is-changing {
    opacity: 0;
    transform: translateY(6px);
}

#reel-progress {
    display: block;
    width: 100%;
    min-width: 120px;
    height: 2px;
    margin-top: 4px;
    background: rgba(255, 255, 255, 0.2);
}
#reel-progress[hidden] { display: none; }
#reel-progress span {
    display: block;
    height: 100%;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left center;
}

.corner-link {
    color: #fff;
    text-decoration: none;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}
.corner-link:hover { opacity: 1; }
.corner-link span {
    display: inline-block;
    transition: transform 0.3s var(--ease-out);
}
.corner-link:hover span { transform: translateX(3px); }

@media (max-width: 768px) {
    /* Phones: the icons and CTA need the room, so the corners stay empty */
    .corner { display: none; }
}