286 lines
12 KiB
CSS
286 lines
12 KiB
CSS
/* ==========================================================================================
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screens/title.css — title screen: radar + ridgeline backdrop, dot-matrix emblem, big title,
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nickname console. Pure CSS/SVG art; an optional backdrop image fades in underneath.
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========================================================================================== */
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.title-screen { align-items: center; justify-content: center; }
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/* ---- backdrop ----------------------------------------------------------------------------------- */
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.title-bg { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
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.title-bg__art {
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position: absolute;
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inset: 0;
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width: 100%;
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height: 100%;
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object-fit: cover;
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opacity: 0;
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object-position: center 30%;
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filter: saturate(.8) brightness(.9);
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transition: opacity 600ms ease;
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}
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.title-bg.has-art .title-bg__art { opacity: .8; }
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/* The real backdrop already carries a radar + target point; keep only the sweep over it. */
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.title-bg.has-art .title-bg__target { display: none; }
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.title-bg.has-art .title-bg__radar { opacity: .35; }
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.title-bg__ridge-art {
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position: absolute;
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left: 0;
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right: 0;
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bottom: -.1rem;
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height: 3.3rem;
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background-repeat: repeat-x;
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background-position: center bottom;
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background-size: auto 100%;
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opacity: 0;
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transition: opacity 600ms ease;
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}
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.title-bg.has-ridges .title-bg__ridge-art { opacity: 1; }
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.title-bg__ridges { animation: fade-in 600ms ease backwards; }
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@keyframes fade-in { from { opacity: 0; } }
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.title-bg__glow {
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position: absolute;
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left: -10%;
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right: -10%;
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bottom: 0;
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height: 6rem;
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background:
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radial-gradient(48% 42% at 50% 78%, rgba(23, 249, 183, .40), rgba(23, 249, 183, .08) 62%, transparent 76%),
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radial-gradient(26% 26% at 50% 80%, rgba(120, 255, 215, .30), transparent 70%);
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filter: blur(6px);
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animation: glow-breathe 7s ease-in-out infinite;
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}
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@keyframes glow-breathe { 50% { opacity: .78; } }
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.title-bg__radar {
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position: absolute;
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left: 17%;
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top: 40%;
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width: 5.6rem;
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height: 5.6rem;
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transform: translate(-50%, -50%);
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border-radius: 50%;
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background:
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radial-gradient(circle, transparent 0 .05rem, rgba(78, 216, 175, .5) .05rem .065rem, transparent .065rem),
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repeating-radial-gradient(circle, transparent 0 .69rem, rgba(78, 216, 175, .16) .69rem .7rem),
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linear-gradient(rgba(78, 216, 175, .12), rgba(78, 216, 175, .12)) center / 100% 1px no-repeat,
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linear-gradient(rgba(78, 216, 175, .12), rgba(78, 216, 175, .12)) center / 1px 100% no-repeat;
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-webkit-mask-image: radial-gradient(circle, #000 55%, transparent 71%);
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mask-image: radial-gradient(circle, #000 55%, transparent 71%);
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opacity: .8;
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}
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.title-bg__sweep {
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position: absolute;
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inset: 0;
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border-radius: 50%;
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/* The bright edge must LEAD and the glow must trail BEHIND it. A conic gradient's angle grows
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clockwise from 0deg (12 o'clock), and radar-sweep rotates clockwise too — so the bright end has
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to sit at 100% (== 0deg) and fade counter-clockwise from there. Written the other way round
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(bright at 0% fading to 22%) the glow fans out AHEAD of the beam and the sweep reads backwards. */
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background: conic-gradient(from 0deg, transparent 0 78%, rgba(23, 249, 183, .28) 100%);
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animation: radar-sweep 6s linear infinite;
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}
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@keyframes radar-sweep { to { transform: rotate(360deg); } }
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.title-bg__target {
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position: absolute;
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right: 12%;
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top: 22%;
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width: 1.3rem;
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height: 1.3rem;
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border-radius: 50%;
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background:
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radial-gradient(circle, rgba(246, 163, 41, .9) 0 .06rem, transparent .065rem),
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radial-gradient(circle, transparent 0 .2rem, rgba(246, 163, 41, .5) .2rem .215rem, transparent .215rem),
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radial-gradient(circle, transparent 0 .5rem, rgba(246, 163, 41, .22) .5rem .51rem, transparent .51rem),
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radial-gradient(circle, rgba(246, 163, 41, .18), transparent 70%);
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animation: target-pulse 3.2s ease-in-out infinite;
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}
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.title-bg__target::after {
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content: 'TARGET POINT';
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position: absolute;
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left: 110%;
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top: 50%;
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transform: translateY(-50%);
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padding: .02rem .08rem;
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border: 1px solid rgba(246, 163, 41, .35);
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font-family: var(--font-display);
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font-size: .1rem;
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letter-spacing: .2em;
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color: rgba(246, 163, 41, .7);
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white-space: nowrap;
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}
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@keyframes target-pulse { 50% { transform: scale(1.06); opacity: .75; } }
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.title-bg__ridges { position: absolute; left: 0; right: 0; bottom: 0; width: 100%; height: 40%; }
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.title-bg__ridges .ridge { stroke-width: 1.5; vector-effect: non-scaling-stroke; }
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.title-bg__ridges .ridge--far { opacity: .95; }
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.title-bg__haze {
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position: absolute;
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inset: 0;
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background:
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linear-gradient(180deg, rgba(12, 15, 14, .6) 0%, transparent 25%, transparent 70%, rgba(6, 8, 7, .7) 100%),
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radial-gradient(46% 42% at 50% 44%, rgba(10, 13, 12, .82), rgba(10, 13, 12, .4) 60%, transparent 80%);
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}
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/* ---- corners ------------------------------------------------------------------------------------- */
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.title-corner { position: absolute; z-index: 2; display: flex; align-items: flex-start; gap: .12rem; line-height: 1.7; }
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.title-corner--tl { left: .44rem; top: .38rem; }
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.title-corner--tr { right: .44rem; top: .38rem; text-align: right; }
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.title-corner__mark {
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width: .32rem;
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height: .32rem;
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margin-top: .02rem;
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border: 1px solid var(--mint-700);
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background:
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linear-gradient(var(--mint-500), var(--mint-500)) center / 40% 2px no-repeat,
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linear-gradient(var(--mint-500), var(--mint-500)) center / 2px 40% no-repeat;
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clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%);
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}
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/* ---- centre column ------------------------------------------------------------------------------- */
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.title-main {
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position: relative;
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z-index: 2;
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display: flex;
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flex-direction: column;
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align-items: center;
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margin-top: -.3rem;
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}
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.emblem { position: relative; display: flex; align-items: center; gap: .26rem; margin-bottom: .26rem; animation: rise-in 600ms var(--ease-out) backwards; }
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.emblem__svg { width: 1.3rem; height: 1.4rem; overflow: visible; filter: drop-shadow(0 0 .12rem rgba(210, 255, 240, .25)); }
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.emblem__svg circle { fill: #dfe6e2; animation: dot-twinkle 4.8s ease-in-out infinite; }
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.emblem__svg circle.d1 { animation-delay: -.7s; }
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.emblem__svg circle.d2 { animation-delay: -1.4s; }
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.emblem__svg circle.d3 { animation-delay: -2.1s; }
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.emblem__svg circle.d4 { animation-delay: -2.8s; }
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.emblem__svg circle.d5 { animation-delay: -3.5s; }
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.emblem__svg circle.d6 { animation-delay: -4.2s; }
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.emblem__svg circle.is-accent { fill: var(--mint-glow); filter: drop-shadow(0 0 .04rem var(--mint-glow)); animation: none; }
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@keyframes dot-twinkle { 0%, 100% { opacity: 1; } 50% { opacity: .55; } }
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.emblem__bracket { width: .16rem; height: 1.7rem; border: 2px solid rgba(223, 230, 226, .45); }
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.emblem__bracket--l { border-right: 0; }
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.emblem__bracket--r { border-left: 0; }
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.title-en {
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display: flex;
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flex-direction: column;
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align-items: center;
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gap: .02rem;
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font-family: var(--font-display);
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text-transform: uppercase;
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line-height: 1;
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animation: rise-in 600ms 80ms var(--ease-out) backwards;
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}
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.title-en__a { font-size: .34rem; font-weight: 500; letter-spacing: .3em; padding-left: .3em; color: #cdd6d1; }
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.title-en__b {
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font-size: .38rem;
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font-weight: 700;
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letter-spacing: .34em;
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padding-left: .34em;
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color: var(--mint-500);
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text-shadow: 0 0 .18rem rgba(23, 249, 183, .45);
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}
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.title-cn {
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margin-top: .14rem;
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font-size: 1.02rem;
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font-weight: 900;
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line-height: 1.12;
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letter-spacing: .06em;
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color: #f4f6f5;
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text-shadow: 0 .04rem .2rem rgba(0, 0, 0, .7);
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animation: rise-in 600ms 140ms var(--ease-out) backwards;
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}
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.title-cn__colon { color: #f4f6f5; }
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/* a title in an alphabetic script (English …; screens/title.js): the display face, smaller so "Stronghold Protocol: Alliance" fits one line */
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.title-cn--latin { font-family: var(--font-display); font-size: .6rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; white-space: nowrap; }
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.title-cn em { font-style: normal; color: var(--mint-500); text-shadow: 0 0 .26rem rgba(23, 249, 183, .45); }
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.title-tag {
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margin-top: .12rem;
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font-size: calc(.19 * var(--t));
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color: var(--text-lo);
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letter-spacing: .1em;
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animation: rise-in 600ms 200ms var(--ease-out) backwards;
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}
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@keyframes rise-in { from { opacity: 0; transform: translateY(.14rem); } }
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.title-login {
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--bk-c: var(--mint-500);
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position: relative;
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width: 4.9rem;
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margin-top: .42rem;
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display: flex;
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flex-direction: column;
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gap: .16rem;
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padding: .24rem .28rem .2rem;
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background: linear-gradient(180deg, rgba(20, 25, 23, .82), rgba(10, 13, 12, .88));
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border: 1px solid var(--line-2);
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box-shadow: 0 .2rem .5rem rgba(0, 0, 0, .5), 0 0 .5rem rgba(23, 249, 183, .06);
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-webkit-backdrop-filter: blur(4px);
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backdrop-filter: blur(4px);
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animation: rise-in 600ms 260ms var(--ease-out) backwards;
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}
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.title-login::before {
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content: '';
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position: absolute;
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left: -1px;
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right: -1px;
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top: -1px;
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height: 2px;
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background: linear-gradient(90deg, var(--mint-500), transparent 60%);
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}
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.title-login .btn--xl { letter-spacing: .6em; padding-left: calc(.48rem + .3em); }
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.title-invite {
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display: flex;
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align-items: center;
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gap: .08rem;
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padding: .08rem .12rem;
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background: rgba(246, 163, 41, .08);
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border: 1px solid rgba(246, 163, 41, .35);
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color: var(--amber);
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font-size: calc(.16 * var(--t));
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}
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.title-invite .icon { width: .2rem; height: .2rem; }
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.title-invite b { font-size: calc(.2 * var(--t)); letter-spacing: .2em; color: #ffd08a; }
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.title-conn { display: flex; align-items: center; justify-content: center; gap: .1rem; min-height: .32rem; font-size: calc(.14 * var(--t)); color: var(--text-lo); }
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/* 统计 (the local stats page) beside the language menu in the top-right corner */
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.title-corner__tools { display: flex; align-items: center; justify-content: flex-end; gap: .1rem; margin-bottom: .1rem; }
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.title-corner__tools .title-lang { margin-bottom: 0; }
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/* language menu (中文 | English | …, ui/lang.js) in the top-right corner; more than four languages make it a list.
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The height is max(design, 1.4em) so the buttons still hold their text at 设置 →「文字大小」 大 / 特大 (on a phone
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1rem is clamped at 40 px and .3rem is only 12 px, less than the enlarged label). */
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.title-lang { display: inline-flex; margin-bottom: .1rem; }
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.title-lang button { min-width: .74rem; height: max(.3rem, 1.4em); font-size: calc(.14 * var(--t)); cursor: pointer; }
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.lang-select select { height: max(.38rem, 1.4em); min-width: 1.6rem; padding: 0 .12rem; background: #0a0d0c; border: 0; color: var(--text-hi); font-size: calc(.16 * var(--t)); cursor: pointer; }
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.title-lang.lang-select select { height: max(.3rem, 1.4em); font-size: calc(.14 * var(--t)); }
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html[data-script="alphabetic"] .title-login .btn--xl { letter-spacing: .3em; }
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.title-conn .ping { height: max(.26rem, 1.6em); font-size: calc(.15 * var(--t)); }
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.title-foot {
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position: absolute;
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z-index: 2;
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left: .44rem;
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right: .44rem;
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bottom: .3rem;
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display: flex;
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justify-content: space-between;
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align-items: flex-end;
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flex-wrap: wrap;
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gap: .12rem .2rem;
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font-size: calc(.13 * var(--t));
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color: var(--text-dim);
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}
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.title-foot__meta { display: flex; align-items: flex-end; gap: .16rem; flex-wrap: wrap; justify-content: flex-end; }
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.title-repo { color: inherit; text-decoration: none; border-bottom: 1px solid transparent; }
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.title-repo:hover, .title-repo:focus-visible { color: var(--text-hi); border-bottom-color: currentColor; }
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/* a development build (shared/constants.js DEV_BUILD): an unmissable tag in the footer */
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.title-dev {
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padding: .03rem .1rem;
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border: 1px solid #ff9f43;
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border-radius: .04rem;
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color: #ffb066;
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background: rgba(255, 159, 67, .14);
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font-weight: 700;
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letter-spacing: .02em;
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}
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