:root {
    color-scheme: dark;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    overflow: hidden;
}

body {
    background:
        radial-gradient(circle at 50% 42%, #1b466b 0, #102a43 48%, #0b2034 100%);
    color: #fff;
    -webkit-font-smoothing: antialiased;
}

.loader {
    position: relative;
    display: grid;
    width: 100%;
    min-height: 100%;
    place-items: center;
    isolation: isolate;
}

.loader::before {
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.024) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.024) 1px, transparent 1px);
    background-size: 52px 52px;
    content: "";
    mask-image: radial-gradient(circle, #000 10%, transparent 72%);
}

.loader__glow {
    position: absolute;
    z-index: -1;
    width: 340px;
    height: 340px;
    border-radius: 50%;
    background: #3b82f6;
    filter: blur(110px);
    opacity: 0.12;
}

.loader__glow--one {
    top: -170px;
    right: -90px;
}

.loader__glow--two {
    bottom: -210px;
    left: -120px;
}

.loader__content {
    display: flex;
    width: min(92vw, 520px);
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.loader__brand {
    margin-bottom: 42px;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.loader__brand span {
    color: #7dd3fc;
}

.loader__map {
    position: relative;
    width: 280px;
    height: 190px;
}

.loader__route {
    width: 100%;
    height: 100%;
    overflow: visible;
}

.loader__route path {
    stroke: rgba(186, 230, 253, 0.38);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-dasharray: 0.025 0.055;
    animation: route 1.4s linear infinite;
}

.loader__pin {
    position: absolute;
    width: 10px;
    height: 10px;
    border: 2px solid rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    background: #38bdf8;
    box-shadow: 0 0 0 6px rgba(56, 189, 248, 0.12);
}

.loader__pin--start {
    top: 137px;
    left: 23px;
}

.loader__pin--middle {
    top: 61px;
    left: 132px;
    animation: pulse-small 1.8s ease-in-out infinite 0.35s;
}

.loader__pin--active {
    top: 19px;
    right: 4px;
    display: grid;
    width: 58px;
    height: 58px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.11);
    box-shadow:
        0 18px 45px rgba(0, 0, 0, 0.25),
        0 0 0 10px rgba(56, 189, 248, 0.07);
    place-items: center;
    backdrop-filter: blur(12px);
    animation: float 2.4s ease-in-out infinite;
}

.loader__pin--active::before,
.loader__pin--active::after {
    position: absolute;
    inset: -12px;
    border: 1px solid rgba(125, 211, 252, 0.22);
    border-radius: 50%;
    content: "";
    animation: ripple 2s ease-out infinite;
}

.loader__pin--active::after {
    animation-delay: 1s;
}

.loader__pin--active svg {
    width: 28px;
    fill: #7dd3fc;
    filter: drop-shadow(0 4px 8px rgba(56, 189, 248, 0.35));
}

.loader__copy {
    margin-top: 14px;
}

.loader__copy h1 {
    margin: 0;
    font-size: clamp(24px, 5vw, 32px);
    line-height: 1.15;
    letter-spacing: -1px;
}

.loader__copy p {
    min-height: 22px;
    margin: 13px 0 18px;
    color: #b8cad9;
    font-size: 14px;
}

.loader__error p {
    max-width: 390px;
    margin-right: auto;
    margin-left: auto;
}

.loader__error button {
    display: inline-flex;
    height: 46px;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 0 20px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 12px;
    background: #ffffff;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
    color: #102a43;
    font: inherit;
    font-size: 14px;
    font-weight: 750;
    cursor: pointer;
    transition:
        transform 160ms ease,
        background 160ms ease,
        box-shadow 160ms ease;
}

.loader__error button:hover {
    background: #eaf7ff;
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.28);
    transform: translateY(-2px);
}

.loader__error button:focus-visible {
    outline: 3px solid rgba(125, 211, 252, 0.75);
    outline-offset: 4px;
}

.loader__error button:active {
    transform: translateY(0);
}

.loader__error button svg {
    width: 18px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 2;
}

.loader__progress {
    width: min(68vw, 260px);
    height: 4px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
}

.loader__progress span {
    display: block;
    width: 42%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #38bdf8, #a5f3fc);
    box-shadow: 0 0 16px rgba(56, 189, 248, 0.65);
    animation: progress 1.35s ease-in-out infinite;
}

@keyframes route {
    to { stroke-dashoffset: -0.08; }
}

@keyframes progress {
    0% { transform: translateX(-115%); }
    55% { width: 55%; }
    100% { transform: translateX(255%); }
}

@keyframes ripple {
    0% { opacity: 0.65; transform: scale(0.72); }
    100% { opacity: 0; transform: scale(1.42); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-7px); }
}

@keyframes pulse-small {
    0%, 100% { box-shadow: 0 0 0 6px rgba(56, 189, 248, 0.12); }
    50% { box-shadow: 0 0 0 12px rgba(56, 189, 248, 0); }
}

@media (max-height: 600px) {
    .loader__brand {
        margin-bottom: 12px;
    }

    .loader__map {
        height: 155px;
        transform: scale(0.82);
    }

    .loader__copy {
        margin-top: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
    }
}