:root {
    --frames-radius: 3px;

    --frames-dim: 0.34;

    --frames-shade: rgba(0, 0, 0, 0.55);
    --frames-shade-deep: rgba(0, 0, 0, 0.7);
    --frames-halo: rgba(0, 0, 0, 0.9);

    --frames-well: rgba(0, 0, 0, 0.9);

    --pano-persp: 1400;
    --pano-squash: 1.36;
    --pano-deep: 330;
    --pano-turn: 17;
    --pano-tilt: 11;
}

.frames {
    position: absolute;
    inset: 0;
    overflow: hidden;
    background: var(--paper, #08080A);
    color: var(--ink, rgba(255, 255, 255, 0.92));
}

.frames-head { display: none; }

.frame-field {
    list-style: none;
    margin: 0;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: 18px 10px;
    opacity: 0;
    animation: frames-wait 0.3s linear 1s forwards;
}

@keyframes frames-wait { to { opacity: 1; } }

.frame-a {
    display: block;
    text-decoration: none;
    color: inherit;
}

.frame-shot {
    display: block;
    width: 100%;
    height: auto;
    border-radius: var(--frames-radius);
    background: var(--lift, #131317);
}

.frame-name {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    line-height: 1.3;
    color: var(--ink-faint, rgba(255, 255, 255, 0.38));
}

.frame-field.is-live {
    display: block;
    position: absolute;
    inset: 0;
    margin: 0;
    padding: 0;
    opacity: 1;
    animation: none;
    overflow: hidden;

    perspective: calc(var(--pano-persp) * 1px);
    perspective-origin: 50% 50%;

    touch-action: none;
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
}

.frame-field.is-live.is-grab { cursor: grabbing; }

.is-live .frame {
    position: absolute;
    left: 50%;
    top: 50%;
    margin: 0;
    transform-origin: 0 0;
}

.is-live .frame-a {
    display: block;
    transition: opacity 0.45s ease, filter 0.45s ease, transform 0.45s ease;
}

.is-live .frame-shot {
    box-shadow: 0 12px 30px var(--frames-shade);
    -webkit-user-drag: none;
    user-drag: none;
}

.is-live .frame-name {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

.frames.is-focus .frame-a {
    opacity: var(--frames-dim);
    filter: grayscale(0.5);
}

.frames.is-focus .frame.is-lit .frame-a {
    opacity: 1;
    filter: none;
}

.is-live .frame.is-lit { z-index: 60; }

.is-live .frame.is-hot .frame-a { transform: scale(1.06); }

.frame-field.is-live::after {
    content: '';
    position: absolute;
    inset: 40% 0 0;
    pointer-events: none;
    z-index: 70;
    opacity: 0;
    transition: opacity 0.3s ease;
    background: linear-gradient(rgba(0, 0, 0, 0), var(--frames-well));
}

.frames.is-focus .frame-field.is-live::after { opacity: 1; }

.frame.is-now .frame-shot {
    outline: 2px solid var(--ink, rgba(255, 255, 255, 0.92));
    outline-offset: 2px;
}

.frame-a:focus-visible {
    outline: 2px solid var(--ink, rgba(255, 255, 255, 0.92));
    outline-offset: 3px;
}

.frames-caption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: calc(34px + env(safe-area-inset-bottom));
    z-index: 80;
    padding: 0 var(--gap, 24px);
    pointer-events: none;
    text-align: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.frames-caption.is-on { opacity: 1; }

.frames-caption b {
    display: block;
    font-family: 'Certa Sans', 'Inter', sans-serif;
    font-size: clamp(24px, 3.6vw, 38px);
    font-weight: 500;
    letter-spacing: -0.005em;
    line-height: 1.1;
    color: var(--ink, rgba(255, 255, 255, 0.92));
    text-shadow: 0 2px 24px var(--frames-halo);
}

.frames-caption span {
    display: block;
    margin-top: 8px;
    font-size: 13px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-soft, rgba(255, 255, 255, 0.62));
    text-shadow: 0 2px 18px var(--frames-halo);
}

.frames-hint {
    position: absolute;
    left: 0;
    right: 0;
    bottom: calc(20px + env(safe-area-inset-bottom));
    z-index: 80;
    margin: 0;
    text-align: center;
    pointer-events: none;
    font-size: 13px;
    letter-spacing: 0.06em;
    color: var(--ink-faint, rgba(255, 255, 255, 0.38));
    text-shadow: 0 2px 18px var(--frames-halo);
    opacity: 0;
    animation: frames-hint 7s ease 1.1s both;
}

@keyframes frames-hint {
    0%, 100% { opacity: 0; }
    10%, 74% { opacity: 1; }
}

.frames-hint.is-off {
    animation: none;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.frames-flight {
    position: fixed;
    inset: 0;
    z-index: 95;
    pointer-events: none;
}

.frames-scrim {
    position: absolute;
    inset: 0;
    background: var(--paper, #08080A);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.frames-scrim.is-on { opacity: 0.94; }

.frames-flier {
    position: absolute;
    left: 0;
    top: 0;
    transform-origin: 0 0;
    border-radius: var(--frames-radius);
    box-shadow: 0 30px 80px var(--frames-shade-deep);
}

@media (max-width: 700px) {
    .frame-field { grid-template-columns: 1fr 1fr; padding: 16px; }
    .frames-caption b { font-size: clamp(22px, 6vw, 32px); }
}

@media (hover: none) {
    .frames.is-focus .frame-a { opacity: 1; filter: none; }
}

@media (prefers-reduced-motion: reduce) {
    .is-live .frame-a,
    .frames-caption,
    .frames-scrim { transition-duration: 0.01ms; }
    .is-live .frame.is-hot .frame-a { transform: none; }
    .frame-field { animation-duration: 0.01ms; }
    .frames-hint { animation: none; opacity: 1; }
}