* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: Inter, Arial, Helvetica, sans-serif;
    background: #050816;
    color: #ffffff;
    min-height: 100vh;
}

.page-bg {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at top left, rgba(0, 204, 255, 0.18), transparent 35%),
        radial-gradient(circle at bottom right, rgba(0, 255, 136, 0.14), transparent 35%),
        linear-gradient(135deg, #050816 0%, #0b1024 50%, #030712 100%);
}

.glow {
    position: absolute;
    border-radius: 999px;
    filter: blur(70px);
    opacity: 0.45;
}

.glow-one {
    width: 300px;
    height: 300px;
    background: #00c2ff;
    top: -80px;
    left: -80px;
}

.glow-two {
    width: 280px;
    height: 280px;
    background: #00ff99;
    bottom: -80px;
    right: -80px;
}

.container {
    width: min(1100px, 92%);
    margin: 0 auto;
    padding: 40px 0 25px;
    position: relative;
    z-index: 2;
}

.hero {
    text-align: center;
    margin-bottom: 32px;
}

.brand {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 18px;
    margin-bottom: 18px;
}

.logo-box {
    width: 84px;
    height: 84px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.16);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
    overflow: hidden;
}

.logo-box img {
    max-width: 78%;
    max-height: 78%;
    object-fit: contain;
}

.brand-label {
    display: block;
    text-align: left;
    color: #5eead4;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 4px;
}

h1 {
    font-size: clamp(34px, 5vw, 58px);
    line-height: 1;
    background: linear-gradient(90deg, #ffffff, #8be9ff, #73ffbd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: #cbd5e1;
    font-size: 18px;
    max-width: 680px;
    margin: 0 auto 20px;
    line-height: 1.5;
}

.status-card {
    width: fit-content;
    max-width: 100%;
    margin: 0 auto;
    padding: 12px 18px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.76);
    border: 1px solid rgba(148, 163, 184, 0.20);
    display: flex;
    align-items: center;
    gap: 10px;
    color: #dbeafe;
    backdrop-filter: blur(12px);
}

.status-dot {
    width: 10px;
    height: 10px;
    background: #22c55e;
    border-radius: 50%;
    box-shadow: 0 0 18px #22c55e;
}

.speed-panel {
    background: rgba(15, 23, 42, 0.72);
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 32px;
    padding: 34px;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 32px;
    box-shadow: 0 30px 90px rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(16px);
}

.meter-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.meter-ring {
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background:
        conic-gradient(from 180deg, #00e5ff, #22c55e, #a3e635, #00e5ff);
    padding: 10px;
    box-shadow:
        0 0 35px rgba(0, 229, 255, 0.25),
        0 0 70px rgba(34, 197, 94, 0.18);
    animation: pulseGlow 3s infinite ease-in-out;
}

.meter-inner {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background:
        radial-gradient(circle at center, #0f172a 0%, #020617 75%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.meter-inner span {
    font-size: 48px;
    font-weight: 800;
}

.meter-inner small {
    color: #94a3b8;
    font-size: 15px;
    margin-top: 4px;
}

.start-btn {
    margin-top: 26px;
    border: none;
    border-radius: 999px;
    padding: 16px 34px;
    font-size: 17px;
    font-weight: 800;
    color: #03111c;
    background: linear-gradient(90deg, #67e8f9, #86efac);
    cursor: pointer;
    box-shadow: 0 18px 45px rgba(34, 197, 94, 0.28);
    transition: all 0.25s ease;
}

.start-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 24px 60px rgba(34, 197, 94, 0.38);
}

.start-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.result-card {
    padding: 24px;
    border-radius: 24px;
    background: rgba(2, 6, 23, 0.55);
    border: 1px solid rgba(148, 163, 184, 0.16);
    min-height: 145px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.result-icon {
    font-size: 28px;
}

.result-card small {
    color: #94a3b8;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.result-card strong {
    font-size: 27px;
}

.info-bar {
    margin-top: 22px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.info-bar div {
    background: rgba(15, 23, 42, 0.60);
    border: 1px solid rgba(148, 163, 184, 0.15);
    padding: 18px;
    border-radius: 18px;
}

.info-bar small {
    display: block;
    color: #94a3b8;
    margin-bottom: 6px;
}

.info-bar strong {
    color: #e2e8f0;
}

.notice {
    margin-top: 20px;
    padding: 16px 18px;
    border-radius: 18px;
    background: rgba(250, 204, 21, 0.09);
    border: 1px solid rgba(250, 204, 21, 0.20);
    color: #fef3c7;
    line-height: 1.5;
}

footer {
    text-align: center;
    color: #64748b;
    font-size: 14px;
    margin-top: 28px;
}

@keyframes pulseGlow {
    0%, 100% {
        transform: scale(1);
        filter: brightness(1);
    }

    50% {
        transform: scale(1.025);
        filter: brightness(1.12);
    }
}

@media (max-width: 850px) {
    .speed-panel {
        grid-template-columns: 1fr;
    }

    .info-bar {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .container {
        padding-top: 24px;
    }

    .brand {
        flex-direction: column;
        gap: 12px;
    }

    .brand-label {
        text-align: center;
    }

    .speed-panel {
        padding: 22px;
        border-radius: 24px;
    }

    .meter-ring {
        width: 220px;
        height: 220px;
    }

    .meter-inner span {
        font-size: 38px;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }

    .subtitle {
        font-size: 16px;
    }
}